[fix] fix net traffic stats display

.gitmodules

@@ -1,3 +1,3 @@
 [submodule "thirdparty/projectx"]
 	path = thirdparty/projectx
-	url = git@github.com:dijunkun/projectx.git
+	url = https://github.com/dijunkun/projectx.git

Info.plist

@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+    <!-- 应用的Bundle identifier，通常使用反向域名标记 -->
+    <key>CFBundleIdentifier</key>
+    <string>com.yourcompany.yourappname</string>
+
+    <!-- 应用的显示名称 -->
+    <key>CFBundleName</key>
+    <string>Your App Name</string>
+
+    <!-- 应用的版本号 -->
+    <key>CFBundleShortVersionString</key>
+    <string>1.0.0</string>
+
+    <!-- 应用的构建版本号 -->
+    <key>CFBundleVersion</key>
+    <string>1</string>
+
+    <!-- 请求麦克风访问权限 -->
+    <key>NSMicrophoneUsageDescription</key>
+    <string>App requires access to the microphone for audio recording.</string>
+
+    <!-- 请求相机访问权限 -->
+    <key>NSCameraUsageDescription</key>
+    <string>App requires access to the camera for video recording.</string>
+
+    <!-- 请求使用连续相机设备 -->
+    <key>NSCameraUseContinuityCameraDeviceType</key>
+    <string>Your usage description here</string>
+
+    <!-- High DPI -->>
+    <key>NSHighResolutionCapable</key>
+    <true/>
+
+    <!-- 其他权限和配置可以在这里添加 -->
+</dict>
+</plist>

LICENSE

@@ -0,0 +1,20 @@
+The MIT License (MIT)
+
+Copyright (c) 2023 The Continuous Desk Authors
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

README.md

@@ -0,0 +1,67 @@
+# Continuous Desk
+
+#### More than remote desktop
+
+----
+[中文](README_CN.md) / [English](README.md)
+
+![sup_example](https://github.com/dijunkun/continuous-desk/assets/29698109/46536bc8-3ddd-438d-bf52-dccf143f1c20)
+
+# Intro
+
+Continuous Desk is a lightweight cross-platform remote desktop. It allows multiple users to remotely control the same computer at the same time. In addition to desktop image transmission, it also supports end-to-end voice transmission, providing collaboration capabilities on the basis of remote desktop.
+
+Continuous Desk is an experimental application of [Projectx](https://github.com/dijunkun/projectx) real-time communications library. Projectx is a lightweight cross-platform real-time communications library. It has basic capabilities such as network traversal ([RFC5245](https://datatracker.ietf.org/doc/html/rfc5245)), video software/hardware encoding/decoding (H264), audio encoding/decoding ([Opus](https://github.com/xiph/opus)), signaling interaction, and network congestion control ([TCP over UDP](https://libnice.freedesktop.org/)).
+
+## Usage
+
+Enter the remote desktop ID in the 'REMOTE ID' field on the menu bar, and click 'Connect' button to initiate the remote connection.
+
+![usage1](https://github.com/dijunkun/continuous-desk/assets/29698109/2ad59e6d-bdba-46d0-90cf-cbc9c06c2278)
+
+If the remote desktop is set with a connection password, the local end needs to enter the correct password to initiate the remote connection. If the password is incorrect, an "Incorrect password" alert will appear in the status bar.
+
+![incorrect password](https://github.com/dijunkun/continuous-desk/assets/29698109/cb05501c-ec4e-4adf-952d-7a55ef770a97)
+
+After connection successfully established, the status bar will display the message "ClientConnected."
+
+![success](https://github.com/dijunkun/continuous-desk/assets/29698109/0cca21f7-48fe-44a5-b83d-eafeb8a81eb1)
+
+## How to build
+
+Requirements:
+- [xmake](https://xmake.io/#/guide/installation)
+- [cmake](https://cmake.org/download/)
+- [vcpkg](https://vcpkg.io/en/getting-started)
+
+Following packages need to be installed on Linux:
+
+```
+sudo apt-get install -y nvidia-cuda-toolkit libxcb-randr0-dev libxcb-xtest0-dev libxcb-xinerama0-dev libxcb-shape0-dev libxcb-xkb-dev libxcb-xfixes0-dev libxcb-shm0-dev libxv-dev libasound2-dev libsndio-dev libasound2-dev libpulse-dev
+```
+
+Commands:
+```
+git clone https://github.com/dijunkun/continuous-desk
+
+cd continuous-desk
+
+git submodule init 
+
+git submodule update
+
+xmake b remote_desk
+```
+Run:
+```
+# Windows/MacOS
+xmake r remote_desk
+
+# root privileges are required on Linux
+./remote_desk
+```
+
+## LICENSE
+
+Continuous Desk is licenced under MIT, and some third-party libraries are distributed under their licenses.
+

README_CN.md

@@ -0,0 +1,67 @@
+# Continuous Desk
+
+#### 不止远程桌面
+
+----
+[English](README.md) / [中文](README_CN.md)
+
+![sup_example](https://github.com/dijunkun/continuous-desk/assets/29698109/46536bc8-3ddd-438d-bf52-dccf143f1c20)
+
+## 简介
+
+Continuous Desk 是一个轻量级的跨平台远程桌面软件。它允许多个用户在同一时间远程操控同一台电脑。除桌面图像传输外，它还支持端到端的语音传输，在远程桌面基础上提供额外的协作能力。
+
+Continuous Desk 是 [Projectx](https://github.com/dijunkun/projectx) 实时音视频传输库的实验性应用。Projectx 是一个轻量级的跨平台实时音视频传输库。它具有网络透传（[RFC5245](https://datatracker.ietf.org/doc/html/rfc5245)），视频软硬编解码（H264），音频编解码（[Opus](https://github.com/xiph/opus)），信令交互，网络拥塞控制（[TCP over UDP](https://libnice.freedesktop.org/)）等基础能力。
+
+
+## 使用
+
+在菜单栏“REMOTE ID”处输入远端桌面的ID，点击“Connect”即可发起远程连接。
+
+![usage1](https://github.com/dijunkun/continuous-desk/assets/29698109/2ad59e6d-bdba-46d0-90cf-cbc9c06c2278)
+
+如果远端桌面设置了连接密码，则本端需填写正确的连接密码才能成功发起远程连接。密码错误时，状态栏会出现“Incorrect password”告警提示。
+
+![incorrect password](https://github.com/dijunkun/continuous-desk/assets/29698109/cb05501c-ec4e-4adf-952d-7a55ef770a97)
+
+连接成功建立后，状态栏会有“ClientConnected”相关字样。
+
+![success](https://github.com/dijunkun/continuous-desk/assets/29698109/0cca21f7-48fe-44a5-b83d-eafeb8a81eb1)
+
+## 编译
+
+依赖：
+- [xmake](https://xmake.io/#/guide/installation)
+- [cmake](https://cmake.org/download/)
+- [vcpkg](https://vcpkg.io/en/getting-started)
+
+Linux环境下需安装以下包：
+
+```
+sudo apt-get install -y nvidia-cuda-toolkit libxcb-randr0-dev libxcb-xtest0-dev libxcb-xinerama0-dev libxcb-shape0-dev libxcb-xkb-dev libxcb-xfixes0-dev libxcb-shm0-dev libxv-dev libasound2-dev libsndio-dev libasound2-dev libpulse-dev
+```
+
+编译命令
+```
+git clone https://github.com/dijunkun/continuous-desk
+
+cd continuous-desk
+
+git submodule init 
+
+git submodule update
+
+xmake b remote_desk
+```
+运行
+```
+# Windows/MacOS
+xmake r remote_desk
+
+# Linux下需使用root权限运行
+./remote_desk
+```
+
+## 许可证
+
+Continuous Desk 使用 MIT 许可证，其中使用到的第三方库根据自身许可证进行分发。

config/config.ini

@@ -1,16 +1,19 @@
 [signal server]
-ip = 120.77.216.215
+ip = 150.158.81.30
 port = 9099
 
 [stun server]
-ip = 120.77.216.215
+ip = 150.158.81.30
 port = 3478
 
 [turn server]
-ip = 120.77.216.215
+ip = 150.158.81.30
 port = 3478
 username = dijunkun
 password = dijunkunpw
 
 [hardware acceleration]
+turn_on = false
+
+[av1 encoding]
 turn_on = true

icon/app.rc

@@ -0,0 +1 @@
+IDI_ICON1 ICON "app_icon.ico"

src/common/platform.cpp

@@ -0,0 +1,125 @@
+#include "platform.h"
+
+#include "rd_log.h"
+
+#ifdef _WIN32
+#include <Winsock2.h>
+#include <iphlpapi.h>
+#elif __APPLE__
+#include <ifaddrs.h>
+#include <net/if_dl.h>
+#include <net/if_types.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#elif __linux__
+#include <fcntl.h>
+#include <net/if.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <unistd.h>
+#endif
+
+std::string GetMac() {
+  char mac_addr[16];
+  int len = 0;
+#ifdef _WIN32
+  IP_ADAPTER_INFO adapterInfo[16];
+  DWORD bufferSize = sizeof(adapterInfo);
+  DWORD result = GetAdaptersInfo(adapterInfo, &bufferSize);
+  if (result == ERROR_SUCCESS) {
+    PIP_ADAPTER_INFO adapter = adapterInfo;
+    while (adapter) {
+      for (UINT i = 0; i < adapter->AddressLength; i++) {
+        len += sprintf_s(mac_addr + len, sizeof(mac_addr) - len, "%.2X",
+                         adapter->Address[i]);
+      }
+      break;
+    }
+  }
+#elif __APPLE__
+  std::string if_name = "en0";
+
+  struct ifaddrs *addrs;
+  struct ifaddrs *cursor;
+  const struct sockaddr_dl *dlAddr;
+
+  if (!getifaddrs(&addrs)) {
+    cursor = addrs;
+    while (cursor != 0) {
+      const struct sockaddr_dl *socAddr =
+          (const struct sockaddr_dl *)cursor->ifa_addr;
+      if ((cursor->ifa_addr->sa_family == AF_LINK) &&
+          (socAddr->sdl_type == IFT_ETHER) &&
+          strcmp(if_name.c_str(), cursor->ifa_name) == 0) {
+        dlAddr = (const struct sockaddr_dl *)cursor->ifa_addr;
+        const unsigned char *base =
+            (const unsigned char *)&dlAddr->sdl_data[dlAddr->sdl_nlen];
+        for (int i = 0; i < dlAddr->sdl_alen; i++) {
+          len +=
+              snprintf(mac_addr + len, sizeof(mac_addr) - len, "%.2X", base[i]);
+        }
+      }
+      cursor = cursor->ifa_next;
+    }
+    freeifaddrs(addrs);
+  }
+#elif __linux__
+  int sock = socket(AF_INET, SOCK_DGRAM, 0);
+  if (sock < 0) {
+    return "";
+  }
+  struct ifreq ifr;
+  struct ifconf ifc;
+  char buf[1024];
+  ifc.ifc_len = sizeof(buf);
+  ifc.ifc_buf = buf;
+  if (ioctl(sock, SIOCGIFCONF, &ifc) < 0) {
+    close(sock);
+    return "";
+  }
+  struct ifreq *it = ifc.ifc_req;
+  const struct ifreq *const end = it + (ifc.ifc_len / sizeof(struct ifreq));
+  for (; it != end; ++it) {
+    std::strcpy(ifr.ifr_name, it->ifr_name);
+    if (ioctl(sock, SIOCGIFFLAGS, &ifr) < 0) {
+      continue;
+    }
+    if (ifr.ifr_flags & IFF_LOOPBACK) {
+      continue;
+    }
+    if (ioctl(sock, SIOCGIFHWADDR, &ifr) < 0) {
+      continue;
+    }
+    std::string mac_address;
+    for (int i = 0; i < 6; ++i) {
+      len += sprintf(mac_addr + len, "%.2X", ifr.ifr_hwaddr.sa_data[i] & 0xff);
+    }
+    break;
+  }
+  close(sock);
+#endif
+  return mac_addr;
+}
+
+std::string GetHostName() {
+  char hostname[256];
+#ifdef _WIN32
+  WSADATA wsaData;
+  if (WSAStartup(MAKEWORD(2, 2), &wsaData) != 0) {
+    std::cerr << "WSAStartup failed." << std::endl;
+    return "";
+  }
+  if (gethostname(hostname, sizeof(hostname)) == SOCKET_ERROR) {
+    LOG_ERROR("gethostname failed: {}", WSAGetLastError());
+    WSACleanup();
+    return "";
+  }
+  WSACleanup();
+#else
+  if (gethostname(hostname, sizeof(hostname)) == -1) {
+    LOG_ERROR("gethostname failed");
+    return "";
+  }
+#endif
+  return hostname;
+}

src/common/platform.h

@@ -0,0 +1,15 @@
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2023-12-18
+ * Copyright (c) 2023 by DI JUNKUN, All Rights Reserved.
+ */
+
+#ifndef _PLATFORM_H_
+#define _PLATFORM_H_
+
+#include <iostream>
+
+std::string GetMac();
+std::string GetHostName();
+
+#endif

src/config_center/config_center.cpp

@@ -0,0 +1,45 @@
+#include "config_center.h"
+
+ConfigCenter::ConfigCenter() {}
+
+ConfigCenter::~ConfigCenter() {}
+
+int ConfigCenter::SetLanguage(LANGUAGE language) {
+  language_ = language;
+  return 0;
+}
+
+int ConfigCenter::SetVideoQuality(VIDEO_QUALITY video_quality) {
+  video_quality_ = video_quality;
+  return 0;
+}
+
+int ConfigCenter::SetVideoEncodeFormat(
+    VIDEO_ENCODE_FORMAT video_encode_format) {
+  video_encode_format_ = video_encode_format;
+  return 0;
+}
+
+int ConfigCenter::SetHardwareVideoCodec(bool hardware_video_codec) {
+  hardware_video_codec_ = hardware_video_codec;
+  return 0;
+}
+
+int ConfigCenter::SetTurn(bool enable_turn) {
+  enable_turn_ = enable_turn;
+  return 0;
+}
+
+ConfigCenter::LANGUAGE ConfigCenter::GetLanguage() { return language_; }
+
+ConfigCenter::VIDEO_QUALITY ConfigCenter::GetVideoQuality() {
+  return video_quality_;
+}
+
+ConfigCenter::VIDEO_ENCODE_FORMAT ConfigCenter::GetVideoEncodeFormat() {
+  return video_encode_format_;
+}
+
+bool ConfigCenter::IsHardwareVideoCodec() { return hardware_video_codec_; }
+
+bool ConfigCenter::IsEnableTurn() { return enable_turn_; }

src/config_center/config_center.h

@@ -0,0 +1,43 @@
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2024-05-29
+ * Copyright (c) 2024 by DI JUNKUN, All Rights Reserved.
+ */
+
+#ifndef _CONFIG_CENTER_H_
+#define _CONFIG_CENTER_H_
+
+class ConfigCenter {
+ public:
+  enum class LANGUAGE { CHINESE = 0, ENGLISH = 1 };
+  enum class VIDEO_QUALITY { LOW = 0, MEDIUM = 1, HIGH = 2 };
+  enum class VIDEO_ENCODE_FORMAT { AV1 = 0, H264 = 1 };
+
+ public:
+  ConfigCenter();
+  ~ConfigCenter();
+
+ public:
+  int SetLanguage(LANGUAGE language);
+  int SetVideoQuality(VIDEO_QUALITY video_quality);
+  int SetVideoEncodeFormat(VIDEO_ENCODE_FORMAT video_encode_format);
+  int SetHardwareVideoCodec(bool hardware_video_codec);
+  int SetTurn(bool enable_turn);
+
+ public:
+  LANGUAGE GetLanguage();
+  VIDEO_QUALITY GetVideoQuality();
+  VIDEO_ENCODE_FORMAT GetVideoEncodeFormat();
+  bool IsHardwareVideoCodec();
+  bool IsEnableTurn();
+
+ private:
+  // Default value should be same with parameters in localization.h
+  LANGUAGE language_ = LANGUAGE::CHINESE;
+  VIDEO_QUALITY video_quality_ = VIDEO_QUALITY::MEDIUM;
+  VIDEO_ENCODE_FORMAT video_encode_format_ = VIDEO_ENCODE_FORMAT::AV1;
+  bool hardware_video_codec_ = false;
+  bool enable_turn_ = false;
+};
+
+#endif

src/device_controller/device_controller.h

@@ -0,0 +1,62 @@
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2023-12-14
+ * Copyright (c) 2023 by DI JUNKUN, All Rights Reserved.
+ */
+
+#ifndef _DEVICE_CONTROLLER_H_
+#define _DEVICE_CONTROLLER_H_
+
+#include <stdio.h>
+
+typedef enum {
+  mouse = 0,
+  keyboard,
+  audio_capture,
+  host_infomation
+} ControlType;
+typedef enum { move = 0, left_down, left_up, right_down, right_up } MouseFlag;
+typedef enum { key_down = 0, key_up } KeyFlag;
+typedef struct {
+  size_t x;
+  size_t y;
+  MouseFlag flag;
+} Mouse;
+
+typedef struct {
+  size_t key_value;
+  KeyFlag flag;
+} Key;
+
+typedef struct {
+  char host_name[64];
+  size_t host_name_size;
+} HostInfo;
+
+typedef struct {
+  ControlType type;
+  union {
+    Mouse m;
+    Key k;
+    HostInfo i;
+    bool a;
+  };
+} RemoteAction;
+
+// int key_code, bool is_down
+typedef void (*OnKeyAction)(int, bool, void*);
+
+class DeviceController {
+ public:
+  virtual ~DeviceController() {}
+
+ public:
+  // virtual int Init(int screen_width, int screen_height);
+  // virtual int Destroy();
+  // virtual int SendCommand(RemoteAction remote_action);
+
+  // virtual int Hook();
+  // virtual int Unhook();
+};
+
+#endif

src/device_controller/device_controller_factory.h

@@ -0,0 +1,34 @@
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2023-12-14
+ * Copyright (c) 2023 by DI JUNKUN, All Rights Reserved.
+ */
+
+#ifndef _DEVICE_CONTROLLER_FACTORY_H_
+#define _DEVICE_CONTROLLER_FACTORY_H_
+
+#include "device_controller.h"
+#include "keyboard_capturer.h"
+#include "mouse_controller.h"
+
+class DeviceControllerFactory {
+ public:
+  enum Device { Mouse = 0, Keyboard };
+
+ public:
+  virtual ~DeviceControllerFactory() {}
+
+ public:
+  DeviceController* Create(Device device) {
+    switch (device) {
+      case Mouse:
+        return new MouseController();
+      case Keyboard:
+        return new KeyboardCapturer();
+      default:
+        return nullptr;
+    }
+  }
+};
+
+#endif

src/device_controller/keyboard/linux/keyboard_capturer.cpp

@@ -0,0 +1,15 @@
+#include "keyboard_capturer.h"
+
+KeyboardCapturer::KeyboardCapturer() {}
+
+KeyboardCapturer::~KeyboardCapturer() {}
+
+int KeyboardCapturer::Hook(OnKeyAction on_key_action, void *user_ptr) {
+  return 0;
+}
+
+int KeyboardCapturer::Unhook() { return 0; }
+
+int KeyboardCapturer::SendKeyboardCommand(int key_code, bool is_down) {
+  return 0;
+}

src/device_controller/keyboard/linux/keyboard_capturer.h

@@ -0,0 +1,25 @@
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2024-11-22
+ * Copyright (c) 2024 by DI JUNKUN, All Rights Reserved.
+ */
+
+#ifndef _KEYBOARD_CAPTURER_H_
+#define _KEYBOARD_CAPTURER_H_
+
+#include "device_controller.h"
+
+class KeyboardCapturer : public DeviceController {
+ public:
+  KeyboardCapturer();
+  virtual ~KeyboardCapturer();
+
+ public:
+  virtual int Hook(OnKeyAction on_key_action, void *user_ptr);
+  virtual int Unhook();
+  virtual int SendKeyboardCommand(int key_code, bool is_down);
+
+ private:
+};
+
+#endif

src/device_controller/keyboard/mac/keyboard_capturer.cpp

@@ -0,0 +1,135 @@
+#include "keyboard_capturer.h"
+
+#include "keyboard_converter.h"
+#include "rd_log.h"
+
+static OnKeyAction g_on_key_action = nullptr;
+static void *g_user_ptr = nullptr;
+
+CGEventRef eventCallback(CGEventTapProxy proxy, CGEventType type,
+                         CGEventRef event, void *userInfo) {
+  KeyboardCapturer *keyboard_capturer = (KeyboardCapturer *)userInfo;
+  if (!keyboard_capturer) {
+    LOG_ERROR("keyboard_capturer is nullptr");
+    return event;
+  }
+
+  int vk_code = 0;
+
+  if (type == kCGEventKeyDown || type == kCGEventKeyUp) {
+    CGKeyCode key_code = static_cast<CGKeyCode>(
+        CGEventGetIntegerValueField(event, kCGKeyboardEventKeycode));
+    if (CGKeyCodeToVkCode.find(key_code) != CGKeyCodeToVkCode.end()) {
+      g_on_key_action(CGKeyCodeToVkCode[key_code], type == kCGEventKeyDown,
+                      g_user_ptr);
+    }
+  } else if (type == kCGEventFlagsChanged) {
+    CGEventFlags current_flags = CGEventGetFlags(event);
+    CGKeyCode key_code = static_cast<CGKeyCode>(
+        CGEventGetIntegerValueField(event, kCGKeyboardEventKeycode));
+
+    // caps lock
+    bool caps_lock_state = (current_flags & kCGEventFlagMaskAlphaShift) != 0;
+    if (caps_lock_state != keyboard_capturer->caps_lock_flag_) {
+      keyboard_capturer->caps_lock_flag_ = caps_lock_state;
+      if (keyboard_capturer->caps_lock_flag_) {
+        g_on_key_action(CGKeyCodeToVkCode[key_code], true, g_user_ptr);
+      } else {
+        g_on_key_action(CGKeyCodeToVkCode[key_code], false, g_user_ptr);
+      }
+    }
+
+    // shift
+    bool shift_state = (current_flags & kCGEventFlagMaskShift) != 0;
+    if (shift_state != keyboard_capturer->shift_flag_) {
+      keyboard_capturer->shift_flag_ = shift_state;
+      if (keyboard_capturer->shift_flag_) {
+        g_on_key_action(CGKeyCodeToVkCode[key_code], true, g_user_ptr);
+      } else {
+        g_on_key_action(CGKeyCodeToVkCode[key_code], false, g_user_ptr);
+      }
+    }
+
+    // control
+    bool control_state = (current_flags & kCGEventFlagMaskControl) != 0;
+    if (control_state != keyboard_capturer->control_flag_) {
+      keyboard_capturer->control_flag_ = control_state;
+      if (keyboard_capturer->control_flag_) {
+        g_on_key_action(CGKeyCodeToVkCode[key_code], true, g_user_ptr);
+      } else {
+        g_on_key_action(CGKeyCodeToVkCode[key_code], false, g_user_ptr);
+      }
+    }
+
+    // option
+    bool option_state = (current_flags & kCGEventFlagMaskAlternate) != 0;
+    if (option_state != keyboard_capturer->option_flag_) {
+      keyboard_capturer->option_flag_ = option_state;
+      if (keyboard_capturer->option_flag_) {
+        g_on_key_action(CGKeyCodeToVkCode[key_code], true, g_user_ptr);
+      } else {
+        g_on_key_action(CGKeyCodeToVkCode[key_code], false, g_user_ptr);
+      }
+    }
+
+    // command
+    bool command_state = (current_flags & kCGEventFlagMaskCommand) != 0;
+    if (command_state != keyboard_capturer->command_flag_) {
+      keyboard_capturer->command_flag_ = command_state;
+      if (keyboard_capturer->command_flag_) {
+        g_on_key_action(CGKeyCodeToVkCode[key_code], true, g_user_ptr);
+      } else {
+        g_on_key_action(CGKeyCodeToVkCode[key_code], false, g_user_ptr);
+      }
+    }
+  }
+
+  return nullptr;
+}
+
+KeyboardCapturer::KeyboardCapturer() {}
+
+KeyboardCapturer::~KeyboardCapturer() {}
+
+int KeyboardCapturer::Hook(OnKeyAction on_key_action, void *user_ptr) {
+  g_on_key_action = on_key_action;
+  g_user_ptr = user_ptr;
+
+  CGEventMask eventMask = (1 << kCGEventKeyDown) | (1 << kCGEventKeyUp) |
+                          (1 << kCGEventFlagsChanged);
+
+  event_tap_ = CGEventTapCreate(kCGSessionEventTap, kCGHeadInsertEventTap,
+                                kCGEventTapOptionDefault, eventMask,
+                                eventCallback, this);
+
+  if (!event_tap_) {
+    LOG_ERROR("CGEventTapCreate failed");
+    return -1;
+  }
+
+  run_loop_source_ =
+      CFMachPortCreateRunLoopSource(kCFAllocatorDefault, event_tap_, 0);
+
+  CFRunLoopAddSource(CFRunLoopGetCurrent(), run_loop_source_,
+                     kCFRunLoopCommonModes);
+
+  CGEventTapEnable(event_tap_, true);
+  return 0;
+}
+
+int KeyboardCapturer::Unhook() {
+  CFRelease(run_loop_source_);
+  CFRelease(event_tap_);
+  return 0;
+}
+
+int KeyboardCapturer::SendKeyboardCommand(int key_code, bool is_down) {
+  if (vkCodeToCGKeyCode.find(key_code) != vkCodeToCGKeyCode.end()) {
+    CGKeyCode cg_key_code = vkCodeToCGKeyCode[key_code];
+    CGEventRef event = CGEventCreateKeyboardEvent(NULL, cg_key_code, is_down);
+    CGEventPost(kCGHIDEventTap, event);
+    CFRelease(event);
+  }
+
+  return 0;
+}

src/device_controller/keyboard/mac/keyboard_capturer.h

@@ -0,0 +1,36 @@
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2024-11-22
+ * Copyright (c) 2024 by DI JUNKUN, All Rights Reserved.
+ */
+
+#ifndef _KEYBOARD_CAPTURER_H_
+#define _KEYBOARD_CAPTURER_H_
+
+#include <ApplicationServices/ApplicationServices.h>
+
+#include "device_controller.h"
+
+class KeyboardCapturer : public DeviceController {
+ public:
+  KeyboardCapturer();
+  virtual ~KeyboardCapturer();
+
+ public:
+  virtual int Hook(OnKeyAction on_key_action, void *user_ptr);
+  virtual int Unhook();
+  virtual int SendKeyboardCommand(int key_code, bool is_down);
+
+ private:
+  CFMachPortRef event_tap_;
+  CFRunLoopSourceRef run_loop_source_;
+
+ public:
+  bool caps_lock_flag_ = false;
+  bool shift_flag_ = false;
+  bool control_flag_ = false;
+  bool option_flag_ = false;
+  bool command_flag_ = false;
+};
+
+#endif

src/device_controller/keyboard/mac/keyboard_converter.h

@@ -0,0 +1,248 @@
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2024-11-25
+ * Copyright (c) 2024 by DI JUNKUN, All Rights Reserved.
+ */
+
+#ifndef _KEYBOARD_CONVERTER_H_
+#define _KEYBOARD_CONVERTER_H_
+
+#include <map>
+
+// Windows vkCode to macOS CGKeyCode (104 keys)
+std::map<int, int> vkCodeToCGKeyCode = {
+    // A-Z
+    {0x41, 0x00},  // A
+    {0x42, 0x0B},  // B
+    {0x43, 0x08},  // C
+    {0x44, 0x02},  // D
+    {0x45, 0x0E},  // E
+    {0x46, 0x03},  // F
+    {0x47, 0x05},  // G
+    {0x48, 0x04},  // H
+    {0x49, 0x22},  // I
+    {0x4A, 0x26},  // J
+    {0x4B, 0x28},  // K
+    {0x4C, 0x25},  // L
+    {0x4D, 0x2E},  // M
+    {0x4E, 0x2D},  // N
+    {0x4F, 0x1F},  // O
+    {0x50, 0x23},  // P
+    {0x51, 0x0C},  // Q
+    {0x52, 0x0F},  // R
+    {0x53, 0x01},  // S
+    {0x54, 0x11},  // T
+    {0x55, 0x20},  // U
+    {0x56, 0x09},  // V
+    {0x57, 0x0D},  // W
+    {0x58, 0x07},  // X
+    {0x59, 0x10},  // Y
+    {0x5A, 0x06},  // Z
+
+    // 0-9
+    {0x30, 0x1D},  // 0
+    {0x31, 0x12},  // 1
+    {0x32, 0x13},  // 2
+    {0x33, 0x14},  // 3
+    {0x34, 0x15},  // 4
+    {0x35, 0x17},  // 5
+    {0x36, 0x16},  // 6
+    {0x37, 0x1A},  // 7
+    {0x38, 0x1C},  // 8
+    {0x39, 0x19},  // 9
+
+    // F1-F12
+    {0x70, 0x7A},  // F1
+    {0x71, 0x78},  // F2
+    {0x72, 0x63},  // F3
+    {0x73, 0x76},  // F4
+    {0x74, 0x60},  // F5
+    {0x75, 0x61},  // F6
+    {0x76, 0x62},  // F7
+    {0x77, 0x64},  // F8
+    {0x78, 0x65},  // F9
+    {0x79, 0x6D},  // F10
+    {0x7A, 0x67},  // F11
+    {0x7B, 0x6F},  // F12
+
+    // control keys
+    {0x1B, 0x35},  // Escape
+    {0x0D, 0x24},  // Enter
+    {0x20, 0x31},  // Space
+    {0x08, 0x33},  // Backspace
+    {0x09, 0x30},  // Tab
+    {0x2C, 0x74},  // Print Screen
+    {0x2D, 0x72},  // Insert
+    {0x2E, 0x75},  // Delete
+    {0x24, 0x73},  // Home
+    {0x23, 0x77},  // End
+    {0x21, 0x79},  // Page Up
+    {0x22, 0x7A},  // Page Down
+
+    // arrow keys
+    {0x25, 0x7B},  // Left Arrow
+    {0x27, 0x7C},  // Right Arrow
+    {0x26, 0x7E},  // Up Arrow
+    {0x28, 0x7D},  // Down Arrow
+
+    // numpad
+    {0x60, 0x52},  // Numpad 0
+    {0x61, 0x53},  // Numpad 1
+    {0x62, 0x54},  // Numpad 2
+    {0x63, 0x55},  // Numpad 3
+    {0x64, 0x56},  // Numpad 4
+    {0x65, 0x57},  // Numpad 5
+    {0x66, 0x58},  // Numpad 6
+    {0x67, 0x59},  // Numpad 7
+    {0x68, 0x5B},  // Numpad 8
+    {0x69, 0x5C},  // Numpad 9
+    {0x6E, 0x41},  // Numpad .
+    {0x6F, 0x4B},  // Numpad /
+    {0x6A, 0x43},  // Numpad *
+    {0x6D, 0x4E},  // Numpad -
+    {0x6B, 0x45},  // Numpad +
+
+    // symbol keys
+    {0xBA, 0x29},  // ; (Semicolon)
+    {0xDE, 0x27},  // ' (Quote)
+    {0xC0, 0x32},  // ` (Backtick)
+    {0xBC, 0x2B},  // , (Comma)
+    {0xBE, 0x2F},  // . (Period)
+    {0xBF, 0x2C},  // / (Slash)
+    {0xDC, 0x2A},  // \ (Backslash)
+    {0xDB, 0x21},  // [ (Left Bracket)
+    {0xDD, 0x1E},  // ] (Right Bracket)
+    {0xBD, 0x1B},  // - (Minus)
+    {0xBB, 0x18},  // = (Equals)
+
+    // modifier keys
+    {0x14, 0x39},  // Caps Lock
+    {0xA0, 0x38},  // Shift (Left)
+    {0xA1, 0x3C},  // Shift (Right)
+    {0xA2, 0x3B},  // Ctrl (Left)
+    {0xA3, 0x3E},  // Ctrl (Right)
+    {0xA4, 0x3A},  // Alt (Left)
+    {0xA5, 0x3D},  // Alt (Right)
+    {0x5B, 0x37},  // Left Command (Windows key)
+    {0x5C, 0x36},  // Right Command
+};
+
+// macOS CGKeyCode to Windows vkCode
+std::map<int, int> CGKeyCodeToVkCode = {
+    // A-Z
+    {0x00, 0x41},  // A
+    {0x0B, 0x42},  // B
+    {0x08, 0x43},  // C
+    {0x02, 0x44},  // D
+    {0x0E, 0x45},  // E
+    {0x03, 0x46},  // F
+    {0x05, 0x47},  // G
+    {0x04, 0x48},  // H
+    {0x22, 0x49},  // I
+    {0x26, 0x4A},  // J
+    {0x28, 0x4B},  // K
+    {0x25, 0x4C},  // L
+    {0x2E, 0x4D},  // M
+    {0x2D, 0x4E},  // N
+    {0x1F, 0x4F},  // O
+    {0x23, 0x50},  // P
+    {0x0C, 0x51},  // Q
+    {0x0F, 0x52},  // R
+    {0x01, 0x53},  // S
+    {0x11, 0x54},  // T
+    {0x20, 0x55},  // U
+    {0x09, 0x56},  // V
+    {0x0D, 0x57},  // W
+    {0x07, 0x58},  // X
+    {0x10, 0x59},  // Y
+    {0x06, 0x5A},  // Z
+
+    // 0-9
+    {0x1D, 0x30},  // 0
+    {0x12, 0x31},  // 1
+    {0x13, 0x32},  // 2
+    {0x14, 0x33},  // 3
+    {0x15, 0x34},  // 4
+    {0x17, 0x35},  // 5
+    {0x16, 0x36},  // 6
+    {0x1A, 0x37},  // 7
+    {0x1C, 0x38},  // 8
+    {0x19, 0x39},  // 9
+
+    // F1-F12
+    {0x7A, 0x70},  // F1
+    {0x78, 0x71},  // F2
+    {0x63, 0x72},  // F3
+    {0x76, 0x73},  // F4
+    {0x60, 0x74},  // F5
+    {0x61, 0x75},  // F6
+    {0x62, 0x76},  // F7
+    {0x64, 0x77},  // F8
+    {0x65, 0x78},  // F9
+    {0x6D, 0x79},  // F10
+    {0x67, 0x7A},  // F11
+    {0x6F, 0x7B},  // F12
+
+    // control keys
+    {0x35, 0x1B},  // Escape
+    {0x24, 0x0D},  // Enter
+    {0x31, 0x20},  // Space
+    {0x33, 0x08},  // Backspace
+    {0x30, 0x09},  // Tab
+    {0x74, 0x2C},  // Print Screen
+    {0x72, 0x2D},  // Insert
+    {0x75, 0x2E},  // Delete
+    {0x73, 0x24},  // Home
+    {0x77, 0x23},  // End
+    {0x79, 0x21},  // Page Up
+    {0x7A, 0x22},  // Page Down
+
+    // arrow keys
+    {0x7B, 0x25},  // Left Arrow
+    {0x7C, 0x27},  // Right Arrow
+    {0x7E, 0x26},  // Up Arrow
+    {0x7D, 0x28},  // Down Arrow
+
+    // numpad
+    {0x52, 0x60},  // Numpad 0
+    {0x53, 0x61},  // Numpad 1
+    {0x54, 0x62},  // Numpad 2
+    {0x55, 0x63},  // Numpad 3
+    {0x56, 0x64},  // Numpad 4
+    {0x57, 0x65},  // Numpad 5
+    {0x58, 0x66},  // Numpad 6
+    {0x59, 0x67},  // Numpad 7
+    {0x5B, 0x68},  // Numpad 8
+    {0x5C, 0x69},  // Numpad 9
+    {0x41, 0x6E},  // Numpad .
+    {0x4B, 0x6F},  // Numpad /
+    {0x43, 0x6A},  // Numpad *
+    {0x4E, 0x6D},  // Numpad -
+    {0x45, 0x6B},  // Numpad +
+
+    // symbol keys
+    {0x29, 0xBA},  // ; (Semicolon)
+    {0x27, 0xDE},  // ' (Quote)
+    {0x32, 0xC0},  // ` (Backtick)
+    {0x2B, 0xBC},  // , (Comma)
+    {0x2F, 0xBE},  // . (Period)
+    {0x2C, 0xBF},  // / (Slash)
+    {0x2A, 0xDC},  // \ (Backslash)
+    {0x21, 0xDB},  // [ (Left Bracket)
+    {0x1E, 0xDD},  // ] (Right Bracket)
+    {0x1B, 0xBD},  // - (Minus)
+    {0x18, 0xBB},  // = (Equals)
+
+    // modifier keys
+    {0x39, 0x14},  // Caps Lock
+    {0x38, 0xA0},  // Shift (Left)
+    {0x3C, 0xA1},  // Shift (Right)
+    {0x3B, 0xA2},  // Control (Left)
+    {0x3E, 0xA3},  // Control (Right)
+    {0x3A, 0xA4},  // Alt (Left)
+    {0x3D, 0xA5},  // Alt (Right)
+    {0x37, 0x5B},  // Left Command (Windows key)
+    {0x36, 0x5C},  // Right Command
+};
+
+#endif

src/device_controller/keyboard/windows/keyboard_capturer.cpp

@@ -0,0 +1,56 @@
+#include "keyboard_capturer.h"
+
+#include "rd_log.h"
+
+static OnKeyAction g_on_key_action = nullptr;
+static void* g_user_ptr = nullptr;
+
+LRESULT CALLBACK KeyboardProc(int nCode, WPARAM wParam, LPARAM lParam) {
+  if (nCode == HC_ACTION && g_on_key_action) {
+    KBDLLHOOKSTRUCT* kbData = reinterpret_cast<KBDLLHOOKSTRUCT*>(lParam);
+
+    if (wParam == WM_KEYDOWN || wParam == WM_SYSKEYDOWN) {
+      g_on_key_action(kbData->vkCode, true, g_user_ptr);
+    } else if (wParam == WM_KEYUP || wParam == WM_SYSKEYUP) {
+      g_on_key_action(kbData->vkCode, false, g_user_ptr);
+    }
+    return 1;
+  }
+
+  return CallNextHookEx(NULL, nCode, wParam, lParam);
+}
+
+KeyboardCapturer::KeyboardCapturer() {}
+
+KeyboardCapturer::~KeyboardCapturer() {}
+
+int KeyboardCapturer::Hook(OnKeyAction on_key_action, void* user_ptr) {
+  g_on_key_action = on_key_action;
+  g_user_ptr = user_ptr;
+
+  keyboard_hook_ = SetWindowsHookEx(WH_KEYBOARD_LL, KeyboardProc, NULL, 0);
+  if (!keyboard_hook_) {
+    LOG_ERROR("Failed to install keyboard hook!")
+    return -1;
+  }
+  return 0;
+}
+
+int KeyboardCapturer::Unhook() {
+  UnhookWindowsHookEx(keyboard_hook_);
+  return 0;
+}
+
+// apply remote keyboard commands to the local machine
+int KeyboardCapturer::SendKeyboardCommand(int key_code, bool is_down) {
+  INPUT input = {0};
+  input.type = INPUT_KEYBOARD;
+  input.ki.wVk = (WORD)key_code;
+
+  if (!is_down) {
+    input.ki.dwFlags = KEYEVENTF_KEYUP;
+  }
+  SendInput(1, &input, sizeof(INPUT));
+
+  return 0;
+}

src/device_controller/keyboard/windows/keyboard_capturer.h

@@ -0,0 +1,28 @@
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2024-11-22
+ * Copyright (c) 2024 by DI JUNKUN, All Rights Reserved.
+ */
+
+#ifndef _KEYBOARD_CAPTURER_H_
+#define _KEYBOARD_CAPTURER_H_
+
+#include <Windows.h>
+
+#include "device_controller.h"
+
+class KeyboardCapturer : public DeviceController {
+ public:
+  KeyboardCapturer();
+  virtual ~KeyboardCapturer();
+
+ public:
+  virtual int Hook(OnKeyAction on_key_action, void *user_ptr);
+  virtual int Unhook();
+  virtual int SendKeyboardCommand(int key_code, bool is_down);
+
+ private:
+  HHOOK keyboard_hook_ = nullptr;
+};
+
+#endif

src/device_controller/mouse/linux/mouse_controller.cpp

@@ -0,0 +1,127 @@
+#include "mouse_controller.h"
+
+#include "log.h"
+
+MouseController::MouseController() {}
+
+MouseController::~MouseController() {
+  if (uinput_fd_) {
+    ioctl(uinput_fd_, UI_DEV_DESTROY);
+    close(uinput_fd_);
+  }
+}
+
+int MouseController::Init(int screen_width, int screen_height) {
+  screen_width_ = screen_width;
+  screen_height_ = screen_height;
+
+  uinput_fd_ = open("/dev/uinput", O_WRONLY | O_NONBLOCK);
+  if (uinput_fd_ < 0) {
+    LOG_ERROR("Cannot open device: /dev/uinput");
+    return -1;
+  }
+
+  ioctl(uinput_fd_, UI_SET_EVBIT, EV_KEY);
+  ioctl(uinput_fd_, UI_SET_KEYBIT, BTN_RIGHT);
+  ioctl(uinput_fd_, UI_SET_KEYBIT, BTN_LEFT);
+  ioctl(uinput_fd_, UI_SET_EVBIT, EV_ABS);
+  ioctl(uinput_fd_, UI_SET_ABSBIT, ABS_X);
+  ioctl(uinput_fd_, UI_SET_ABSBIT, ABS_Y);
+  ioctl(uinput_fd_, UI_SET_EVBIT, EV_REL);
+
+  struct uinput_user_dev uidev;
+  memset(&uidev, 0, sizeof(uidev));
+  snprintf(uidev.name, UINPUT_MAX_NAME_SIZE, "VirtualMouse");
+  uidev.id.bustype = BUS_USB;
+  uidev.id.version = 1;
+  uidev.id.vendor = 0x1;
+  uidev.id.product = 0x1;
+  uidev.absmin[ABS_X] = 0;
+  uidev.absmax[ABS_X] = screen_width_;
+  uidev.absmin[ABS_Y] = 0;
+  uidev.absmax[ABS_Y] = screen_height_;
+
+  int res_uidev = write(uinput_fd_, &uidev, sizeof(uidev));
+  ioctl(uinput_fd_, UI_DEV_CREATE);
+  return 0;
+}
+
+int MouseController::Destroy() { return 0; }
+
+int MouseController::SendCommand(RemoteAction remote_action) {
+  int mouse_pos_x = remote_action.m.x;
+  int mouse_pos_y = remote_action.m.y;
+
+  if (remote_action.type == ControlType::mouse) {
+    struct input_event event;
+    memset(&event, 0, sizeof(event));
+    gettimeofday(&event.time, NULL);
+
+    if (remote_action.m.flag == MouseFlag::left_down) {
+      SimulateKeyDown(uinput_fd_, BTN_LEFT);
+    } else if (remote_action.m.flag == MouseFlag::left_up) {
+      SimulateKeyUp(uinput_fd_, BTN_LEFT);
+    } else if (remote_action.m.flag == MouseFlag::right_down) {
+      SimulateKeyDown(uinput_fd_, BTN_RIGHT);
+    } else if (remote_action.m.flag == MouseFlag::right_up) {
+      SimulateKeyUp(uinput_fd_, BTN_RIGHT);
+    } else {
+      SetMousePosition(uinput_fd_, mouse_pos_x, mouse_pos_y);
+    }
+  }
+
+  return 0;
+}
+
+void MouseController::SimulateKeyDown(int fd, int kval) {
+  int res_ev = 0;
+  struct input_event event;
+  memset(&event, 0, sizeof(event));
+  gettimeofday(&event.time, 0);
+
+  event.type = EV_KEY;
+  event.value = 1;
+  event.code = kval;
+  res_ev = write(fd, &event, sizeof(event));
+
+  event.type = EV_SYN;
+  event.value = 0;
+  event.code = SYN_REPORT;
+  res_ev = write(fd, &event, sizeof(event));
+}
+
+void MouseController::SimulateKeyUp(int fd, int kval) {
+  int res_ev = 0;
+  struct input_event event;
+  memset(&event, 0, sizeof(event));
+  gettimeofday(&event.time, 0);
+
+  event.type = EV_KEY;
+  event.value = 0;
+  event.code = kval;
+  res_ev = write(fd, &event, sizeof(event));
+
+  event.type = EV_SYN;
+  event.value = 0;
+  event.code = SYN_REPORT;
+  res_ev = write(fd, &event, sizeof(event));
+}
+
+void MouseController::SetMousePosition(int fd, int x, int y) {
+  struct input_event ev[2], ev_sync;
+  memset(ev, 0, sizeof(ev));
+  memset(&ev_sync, 0, sizeof(ev_sync));
+
+  ev[0].type = EV_ABS;
+  ev[0].code = ABS_X;
+  ev[0].value = x;
+  ev[1].type = EV_ABS;
+  ev[1].code = ABS_Y;
+  ev[1].value = y;
+  int res_w = write(fd, ev, sizeof(ev));
+
+  ev_sync.type = EV_SYN;
+  ev_sync.value = 0;
+  ev_sync.code = 0;
+  int res_ev_sync = write(fd, &ev_sync, sizeof(ev_sync));
+}

src/device_controller/mouse/linux/mouse_controller.h

@@ -0,0 +1,41 @@
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2023-12-14
+ * Copyright (c) 2023 by DI JUNKUN, All Rights Reserved.
+ */
+
+#ifndef _MOUSE_CONTROLLER_H_
+#define _MOUSE_CONTROLLER_H_
+
+#include <fcntl.h>
+#include <linux/uinput.h>
+#include <net/if.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <unistd.h>
+
+#include "device_controller.h"
+
+class MouseController : public DeviceController {
+ public:
+  MouseController();
+  virtual ~MouseController();
+
+ public:
+  virtual int Init(int screen_width, int screen_height);
+  virtual int Destroy();
+  virtual int SendCommand(RemoteAction remote_action);
+
+ private:
+  void SimulateKeyDown(int fd, int kval);
+  void SimulateKeyUp(int fd, int kval);
+  void SetMousePosition(int fd, int x, int y);
+
+ private:
+  int uinput_fd_;
+  struct uinput_user_dev uinput_dev_;
+  int screen_width_ = 0;
+  int screen_height_ = 0;
+};
+
+#endif

src/device_controller/mouse/mac/mouse_controller.cpp

@@ -0,0 +1,54 @@
+#include "mouse_controller.h"
+
+#include <ApplicationServices/ApplicationServices.h>
+
+#include "rd_log.h"
+
+MouseController::MouseController() {}
+
+MouseController::~MouseController() {}
+
+int MouseController::Init(int screen_width, int screen_height) {
+  screen_width_ = screen_width;
+  screen_height_ = screen_height;
+
+  pixel_width_ =
+      CGDisplayModeGetPixelWidth(CGDisplayCopyDisplayMode(CGMainDisplayID()));
+  pixel_height_ =
+      CGDisplayModeGetPixelHeight(CGDisplayCopyDisplayMode(CGMainDisplayID()));
+
+  return 0;
+}
+
+int MouseController::Destroy() { return 0; }
+
+int MouseController::SendCommand(RemoteAction remote_action) {
+  int mouse_pos_x = remote_action.m.x * screen_width_ / pixel_width_;
+  int mouse_pos_y = remote_action.m.y * screen_height_ / pixel_height_;
+
+  if (remote_action.type == ControlType::mouse) {
+    CGEventRef mouse_event;
+    CGEventType mouse_type;
+
+    if (remote_action.m.flag == MouseFlag::left_down) {
+      mouse_type = kCGEventLeftMouseDown;
+    } else if (remote_action.m.flag == MouseFlag::left_up) {
+      mouse_type = kCGEventLeftMouseUp;
+    } else if (remote_action.m.flag == MouseFlag::right_down) {
+      mouse_type = kCGEventRightMouseDown;
+    } else if (remote_action.m.flag == MouseFlag::right_up) {
+      mouse_type = kCGEventRightMouseUp;
+    } else {
+      mouse_type = kCGEventMouseMoved;
+    }
+
+    mouse_event = CGEventCreateMouseEvent(NULL, mouse_type,
+                                          CGPointMake(mouse_pos_x, mouse_pos_y),
+                                          kCGMouseButtonLeft);
+
+    CGEventPost(kCGHIDEventTap, mouse_event);
+    CFRelease(mouse_event);
+  }
+
+  return 0;
+}

src/device_controller/mouse/mac/mouse_controller.h

@@ -0,0 +1,30 @@
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2023-12-14
+ * Copyright (c) 2023 by DI JUNKUN, All Rights Reserved.
+ */
+
+#ifndef _MOUSE_CONTROLLER_H_
+#define _MOUSE_CONTROLLER_H_
+
+#include "device_controller.h"
+
+class MouseController : public DeviceController {
+ public:
+  MouseController();
+  virtual ~MouseController();
+
+ public:
+  virtual int Init(int screen_width, int screen_height);
+  virtual int Destroy();
+  virtual int SendCommand(RemoteAction remote_action);
+
+ private:
+  int screen_width_ = 0;
+  int screen_height_ = 0;
+
+  int pixel_width_ = 0;
+  int pixel_height_ = 0;
+};
+
+#endif

src/device_controller/mouse/windows/mouse_controller.cpp

@@ -0,0 +1,47 @@
+#include "mouse_controller.h"
+
+#include "rd_log.h"
+
+MouseController::MouseController() {}
+
+MouseController::~MouseController() {}
+
+int MouseController::Init(int screen_width, int screen_height) {
+  screen_width_ = screen_width;
+  screen_height_ = screen_height;
+
+  return 0;
+}
+
+int MouseController::Destroy() { return 0; }
+
+int MouseController::SendCommand(RemoteAction remote_action) {
+  INPUT ip;
+
+  if (remote_action.type == ControlType::mouse) {
+    ip.type = INPUT_MOUSE;
+    ip.mi.dx = (LONG)remote_action.m.x;
+    ip.mi.dy = (LONG)remote_action.m.y;
+    if (remote_action.m.flag == MouseFlag::left_down) {
+      ip.mi.dwFlags = MOUSEEVENTF_LEFTDOWN | MOUSEEVENTF_ABSOLUTE;
+    } else if (remote_action.m.flag == MouseFlag::left_up) {
+      ip.mi.dwFlags = MOUSEEVENTF_LEFTUP | MOUSEEVENTF_ABSOLUTE;
+    } else if (remote_action.m.flag == MouseFlag::right_down) {
+      ip.mi.dwFlags = MOUSEEVENTF_RIGHTDOWN | MOUSEEVENTF_ABSOLUTE;
+    } else if (remote_action.m.flag == MouseFlag::right_up) {
+      ip.mi.dwFlags = MOUSEEVENTF_RIGHTUP | MOUSEEVENTF_ABSOLUTE;
+    } else {
+      ip.mi.dwFlags = MOUSEEVENTF_MOVE;
+    }
+    ip.mi.mouseData = 0;
+    ip.mi.time = 0;
+
+    SetCursorPos(ip.mi.dx, ip.mi.dy);
+
+    if (ip.mi.dwFlags != MOUSEEVENTF_MOVE) {
+      SendInput(1, &ip, sizeof(INPUT));
+    }
+  }
+
+  return 0;
+}

src/device_controller/mouse/windows/mouse_controller.h

@@ -0,0 +1,27 @@
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2023-12-14
+ * Copyright (c) 2023 by DI JUNKUN, All Rights Reserved.
+ */
+
+#ifndef _MOUSE_CONTROLLER_H_
+#define _MOUSE_CONTROLLER_H_
+
+#include "device_controller.h"
+
+class MouseController : public DeviceController {
+ public:
+  MouseController();
+  virtual ~MouseController();
+
+ public:
+  virtual int Init(int screen_width, int screen_height);
+  virtual int Destroy();
+  virtual int SendCommand(RemoteAction remote_action);
+
+ private:
+  int screen_width_ = 0;
+  int screen_height_ = 0;
+};
+
+#endif

src/localization/localization.h

@@ -0,0 +1,103 @@
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2024-05-29
+ * Copyright (c) 2024 by DI JUNKUN, All Rights Reserved.
+ */
+#ifndef _LOCALIZATION_H_
+#define _LOCALIZATION_H_
+
+#include <string>
+#include <vector>
+namespace localization {
+
+static std::vector<std::string> local_desktop = {u8"本桌面", "Local Desktop"};
+static std::vector<std::string> local_id = {u8"本机ID", "Local ID"};
+static std::vector<std::string> local_id_copied_to_clipboard = {
+    u8"已复制到剪贴板", "Copied to clipboard"};
+static std::vector<std::string> password = {u8"密码", "Password"};
+static std::vector<std::string> max_password_len = {u8"最大6个字符",
+                                                    "Max 6 chars"};
+
+static std::vector<std::string> remote_desktop = {u8"控制远程桌面",
+                                                  "Control Remote Desktop"};
+static std::vector<std::string> remote_id = {u8"对端ID", "Remote ID"};
+static std::vector<std::string> connect = {u8"连接", "Connect"};
+static std::vector<std::string> recent_connections = {u8"近期连接",
+                                                      "Recent Connections"};
+static std::vector<std::string> disconnect = {u8"断开连接", "Disconnect"};
+static std::vector<std::string> fullscreen = {u8"全屏", " Fullscreen"};
+static std::vector<std::string> show_net_traffic_stats = {
+    u8"显示流量统计", "Show Net Traffic Stats"};
+static std::vector<std::string> hide_net_traffic_stats = {
+    u8"隐藏流量统计", "Hide Net Traffic Stats"};
+static std::vector<std::string> video = {u8"视频", "Video"};
+static std::vector<std::string> audio = {u8"音频", "Audio"};
+static std::vector<std::string> data = {u8"数据", "Data"};
+static std::vector<std::string> total = {u8"总计", "Total"};
+static std::vector<std::string> in = {u8"输入", "In"};
+static std::vector<std::string> out = {u8"输出", "Out"};
+static std::vector<std::string> loss_rate = {u8"丢包率", "Loss Rate"};
+static std::vector<std::string> exit_fullscreen = {u8"退出全屏",
+                                                   "Exit fullscreen"};
+static std::vector<std::string> control_mouse = {u8"控制", "Control"};
+static std::vector<std::string> release_mouse = {u8"释放", "Release"};
+static std::vector<std::string> audio_capture = {u8"声音", "Audio"};
+static std::vector<std::string> mute = {u8" 静音", " Mute"};
+static std::vector<std::string> settings = {u8"设置", "Settings"};
+static std::vector<std::string> language = {u8"语言:", "Language:"};
+static std::vector<std::string> language_zh = {u8"中文", "Chinese"};
+static std::vector<std::string> language_en = {u8"英文", "English"};
+static std::vector<std::string> video_quality = {u8"视频质量:",
+                                                 "Video Quality:"};
+static std::vector<std::string> video_quality_high = {u8"高", "High"};
+static std::vector<std::string> video_quality_medium = {u8"中", "Medium"};
+static std::vector<std::string> video_quality_low = {u8"低", "Low"};
+static std::vector<std::string> video_encode_format = {u8"视频编码格式:",
+                                                       "Video Encode Format:"};
+static std::vector<std::string> av1 = {u8"AV1", "AV1"};
+static std::vector<std::string> h264 = {u8"H.264", "H.264"};
+static std::vector<std::string> enable_hardware_video_codec = {
+    u8"启用硬件编解码器:", "Enable Hardware Video Codec:"};
+static std::vector<std::string> enable_turn = {u8"启用中继服务:",
+                                               "Enable TURN Service:"};
+
+static std::vector<std::string> ok = {u8"确认", "OK"};
+static std::vector<std::string> cancel = {u8"取消", "Cancel"};
+
+static std::vector<std::string> new_password = {
+    u8"请输入六位密码:", "Please input a six-char password:"};
+
+static std::vector<std::string> input_password = {u8"请输入密码:",
+                                                  "Please input password:"};
+static std::vector<std::string> validate_password = {u8"验证密码中...",
+                                                     "Validate password ..."};
+static std::vector<std::string> reinput_password = {
+    u8"请重新输入密码", "Please input password again"};
+
+static std::vector<std::string> remember_password = {u8"记住密码",
+                                                     "Remember password"};
+
+static std::vector<std::string> signal_connected = {u8"已连接服务器",
+                                                    "Connected"};
+static std::vector<std::string> signal_disconnected = {u8"未连接服务器",
+                                                       "Disconnected"};
+
+static std::vector<std::string> p2p_connected = {u8"对等连接已建立",
+                                                 "P2P Connected"};
+static std::vector<std::string> p2p_disconnected = {u8"对等连接已断开",
+                                                    "P2P Disconnected"};
+static std::vector<std::string> p2p_connecting = {u8"正在建立对等连接...",
+                                                  "P2P Connecting ..."};
+static std::vector<std::string> p2p_failed = {u8"对等连接失败", "P2P Failed"};
+static std::vector<std::string> p2p_closed = {u8"对等连接已关闭", "P2P closed"};
+
+static std::vector<std::string> no_such_id = {u8"无此ID", "No such ID"};
+
+static std::vector<std::string> about = {u8"关于", "About"};
+static std::vector<std::string> version = {u8"版本", "Version"};
+
+static std::vector<std::string> confirm_delete_connection = {
+    u8"确认删除此连接", "Confirm to delete this connection"};
+}  // namespace localization
+
+#endif

src/log/log.h

@@ -1,127 +0,0 @@
-#ifndef _LOG_H_
-#define _LOG_H_
-
-#include <chrono>
-#include <iomanip>
-#include <iostream>
-#include <sstream>
-#include <string>
-
-#include "spdlog/common.h"
-#include "spdlog/logger.h"
-#include "spdlog/sinks/base_sink.h"
-#include "spdlog/sinks/rotating_file_sink.h"
-#include "spdlog/sinks/stdout_color_sinks.h"
-#include "spdlog/spdlog.h"
-
-using namespace std::chrono;
-
-#define SPDLOG_ACTIVE_LEVEL SPDLOG_LEVEL_INFO
-
-// SPDLOG_TRACE(...)
-// SPDLOG_DEBUG(...)
-// SPDLOG_INFO(...)
-// SPDLOG_WARN(...)
-// SPDLOG_ERROR(...)
-// SPDLOG_CRITICAL(...)
-
-#ifdef SIGNAL_LOGGER
-constexpr auto LOGGER_NAME = "siganl_server";
-#else
-constexpr auto LOGGER_NAME = "remote_desk";
-#endif
-
-#define LOG_INFO(...)                                                         \
-  if (nullptr == spdlog::get(LOGGER_NAME)) {                                  \
-    auto now = std::chrono::system_clock::now() + std::chrono::hours(8);      \
-    auto timet = std::chrono::system_clock::to_time_t(now);                   \
-    auto localTime = *std::gmtime(&timet);                                    \
-    std::stringstream ss;                                                     \
-    std::string filename;                                                     \
-    ss << LOGGER_NAME;                                                        \
-    ss << std::put_time(&localTime, "-%Y%m%d-%H%M%S.log");                    \
-    ss >> filename;                                                           \
-    std::string path = "logs/" + filename;                                    \
-    std::vector<spdlog::sink_ptr> sinks;                                      \
-    sinks.push_back(std::make_shared<spdlog::sinks::stdout_color_sink_mt>()); \
-    sinks.push_back(std::make_shared<spdlog::sinks::rotating_file_sink_mt>(   \
-        path, 1048576 * 5, 3));                                               \
-    auto combined_logger = std::make_shared<spdlog::logger>(                  \
-        LOGGER_NAME, begin(sinks), end(sinks));                               \
-    combined_logger->flush_on(spdlog::level::info);                           \
-    spdlog::register_logger(combined_logger);                                 \
-    SPDLOG_LOGGER_INFO(combined_logger, __VA_ARGS__);                         \
-  } else {                                                                    \
-    SPDLOG_LOGGER_INFO(spdlog::get(LOGGER_NAME), __VA_ARGS__);                \
-  }
-
-#define LOG_WARN(...)                                                         \
-  if (nullptr == spdlog::get(LOGGER_NAME)) {                                  \
-    auto now = std::chrono::system_clock::now() + std::chrono::hours(8);      \
-    auto timet = std::chrono::system_clock::to_time_t(now);                   \
-    auto localTime = *std::gmtime(&timet);                                    \
-    std::stringstream ss;                                                     \
-    std::string filename;                                                     \
-    ss << LOGGER_NAME;                                                        \
-    ss << std::put_time(&localTime, "-%Y%m%d-%H%M%S.log");                    \
-    ss >> filename;                                                           \
-    std::string path = "logs/" + filename;                                    \
-    std::vector<spdlog::sink_ptr> sinks;                                      \
-    sinks.push_back(std::make_shared<spdlog::sinks::stdout_color_sink_mt>()); \
-    sinks.push_back(std::make_shared<spdlog::sinks::rotating_file_sink_mt>(   \
-        path, 1048576 * 5, 3));                                               \
-    auto combined_logger = std::make_shared<spdlog::logger>(                  \
-        LOGGER_NAME, begin(sinks), end(sinks));                               \
-    spdlog::register_logger(combined_logger);                                 \
-    SPDLOG_LOGGER_WARN(combined_logger, __VA_ARGS__);                         \
-  } else {                                                                    \
-    SPDLOG_LOGGER_WARN(spdlog::get(LOGGER_NAME), __VA_ARGS__);                \
-  }
-
-#define LOG_ERROR(...)                                                        \
-  if (nullptr == spdlog::get(LOGGER_NAME)) {                                  \
-    auto now = std::chrono::system_clock::now() + std::chrono::hours(8);      \
-    auto timet = std::chrono::system_clock::to_time_t(now);                   \
-    auto localTime = *std::gmtime(&timet);                                    \
-    std::stringstream ss;                                                     \
-    std::string filename;                                                     \
-    ss << LOGGER_NAME;                                                        \
-    ss << std::put_time(&localTime, "-%Y%m%d-%H%M%S.log");                    \
-    ss >> filename;                                                           \
-    std::string path = "logs/" + filename;                                    \
-    std::vector<spdlog::sink_ptr> sinks;                                      \
-    sinks.push_back(std::make_shared<spdlog::sinks::stdout_color_sink_mt>()); \
-    sinks.push_back(std::make_shared<spdlog::sinks::rotating_file_sink_mt>(   \
-        path, 1048576 * 5, 3));                                               \
-    auto combined_logger = std::make_shared<spdlog::logger>(                  \
-        LOGGER_NAME, begin(sinks), end(sinks));                               \
-    spdlog::register_logger(combined_logger);                                 \
-    SPDLOG_LOGGER_ERROR(combined_logger, __VA_ARGS__);                        \
-  } else {                                                                    \
-    SPDLOG_LOGGER_ERROR(spdlog::get(LOGGER_NAME), __VA_ARGS__);               \
-  }
-
-#define LOG_FATAL(...)                                                        \
-  if (nullptr == spdlog::get(LOGGER_NAME)) {                                  \
-    auto now = std::chrono::system_clock::now() + std::chrono::hours(8);      \
-    auto timet = std::chrono::system_clock::to_time_t(now);                   \
-    auto localTime = *std::gmtime(&timet);                                    \
-    std::stringstream ss;                                                     \
-    std::string filename;                                                     \
-    ss << LOGGER_NAME;                                                        \
-    ss << std::put_time(&localTime, "-%Y%m%d-%H%M%S.log");                    \
-    ss >> filename;                                                           \
-    std::string path = "logs/" + filename;                                    \
-    std::vector<spdlog::sink_ptr> sinks;                                      \
-    sinks.push_back(std::make_shared<spdlog::sinks::stdout_color_sink_mt>()); \
-    sinks.push_back(std::make_shared<spdlog::sinks::rotating_file_sink_mt>(   \
-        path, 1048576 * 5, 3));                                               \
-    auto combined_logger = std::make_shared<spdlog::logger>(                  \
-        LOGGER_NAME, begin(sinks), end(sinks));                               \
-    spdlog::register_logger(combined_logger);                                 \
-    SPDLOG_LOGGER_CRITICAL(combined_logger, __VA_ARGS__);                     \
-  } else {                                                                    \
-    SPDLOG_LOGGER_CRITICAL(spdlog::get(LOGGER_NAME), __VA_ARGS__);            \
-  }
-
-#endif

src/log/rd_log.cpp

@@ -0,0 +1,37 @@
+#include "rd_log.h"
+
+std::shared_ptr<spdlog::logger> get_logger() {
+  if (auto logger = spdlog::get(LOGGER_NAME)) {
+    return logger;
+  }
+
+  auto now = std::chrono::system_clock::now() + std::chrono::hours(8);
+  auto now_time = std::chrono::system_clock::to_time_t(now);
+
+  std::tm tm_info;
+
+#ifdef _WIN32
+  gmtime_s(&tm_info, &now_time);
+#else
+  gmtime_r(&now_time, &tm_info);
+#endif
+
+  std::stringstream ss;
+  std::string filename;
+  ss << LOGGER_NAME;
+  ss << std::put_time(&tm_info, "-%Y%m%d-%H%M%S.log");
+  ss >> filename;
+
+  std::string path = "logs/" + filename;
+  std::vector<spdlog::sink_ptr> sinks;
+  sinks.push_back(std::make_shared<spdlog::sinks::stdout_color_sink_mt>());
+  sinks.push_back(std::make_shared<spdlog::sinks::rotating_file_sink_mt>(
+      path, 1048576 * 5, 3));
+
+  auto combined_logger =
+      std::make_shared<spdlog::logger>(LOGGER_NAME, begin(sinks), end(sinks));
+  combined_logger->flush_on(spdlog::level::info);
+  spdlog::register_logger(combined_logger);
+
+  return combined_logger;
+}

src/log/rd_log.h

@@ -0,0 +1,39 @@
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2024-11-26
+ * Copyright (c) 2024 by DI JUNKUN, All Rights Reserved.
+ */
+
+#ifndef _RD_LOG_H_
+#define _RD_LOG_H_
+
+#include <chrono>
+#include <iomanip>
+#include <iostream>
+#include <sstream>
+#include <string>
+
+#include "spdlog/common.h"
+#include "spdlog/logger.h"
+#include "spdlog/sinks/base_sink.h"
+#include "spdlog/sinks/rotating_file_sink.h"
+#include "spdlog/sinks/stdout_color_sinks.h"
+#include "spdlog/spdlog.h"
+
+using namespace std::chrono;
+
+#define SPDLOG_ACTIVE_LEVEL SPDLOG_LEVEL_INFO
+
+constexpr auto LOGGER_NAME = "rd";
+
+std::shared_ptr<spdlog::logger> get_logger();
+
+#define LOG_INFO(...) SPDLOG_LOGGER_INFO(get_logger(), __VA_ARGS__);
+
+#define LOG_WARN(...) SPDLOG_LOGGER_WARN(get_logger(), __VA_ARGS__);
+
+#define LOG_ERROR(...) SPDLOG_LOGGER_ERROR(get_logger(), __VA_ARGS__);
+
+#define LOG_FATAL(...) SPDLOG_LOGGER_CRITICAL(get_logger(), __VA_ARGS__);
+
+#endif

src/screen_capture/macosx/screen_capture_wgc.cpp

@@ -1,26 +0,0 @@
-#include "screen_capture_wgc.h"
-
-#include <iostream>
-
-ScreenCaptureWgc::ScreenCaptureWgc() {}
-
-ScreenCaptureWgc::~ScreenCaptureWgc() {}
-
-bool ScreenCaptureWgc::IsWgcSupported() { return false; }
-
-int ScreenCaptureWgc::Init(const RECORD_DESKTOP_RECT &rect, const int fps,
-                           cb_desktop_data cb) {
-  return 0;
-}
-
-int ScreenCaptureWgc::Start() { return 0; }
-
-int ScreenCaptureWgc::Pause() { return 0; }
-
-int ScreenCaptureWgc::Resume() { return 0; }
-
-int ScreenCaptureWgc::Stop() { return 0; }
-
-void ScreenCaptureWgc::OnFrame() {}
-
-void ScreenCaptureWgc::CleanUp() {}

src/screen_capture/macosx/screen_capture_wgc.h

@@ -1,56 +0,0 @@
-#ifndef _SCREEN_CAPTURE_WGC_H_
-#define _SCREEN_CAPTURE_WGC_H_
-
-#include <atomic>
-#include <functional>
-#include <string>
-#include <thread>
-
-typedef struct {
-  int left;
-  int top;
-  int right;
-  int bottom;
-} RECORD_DESKTOP_RECT;
-
-typedef std::function<void(unsigned char *, int, int, int)> cb_desktop_data;
-typedef std::function<void(int)> cb_desktop_error;
-
-class ScreenCaptureWgc {
- public:
-  ScreenCaptureWgc();
-  ~ScreenCaptureWgc();
-
- public:
-  bool IsWgcSupported();
-
-  int Init(const RECORD_DESKTOP_RECT &rect, const int fps, cb_desktop_data cb);
-
-  int Start();
-  int Pause();
-  int Resume();
-  int Stop();
-
-  void OnFrame();
-
- protected:
-  void CleanUp();
-
- private:
-  std::atomic_bool _running;
-  std::atomic_bool _paused;
-  std::atomic_bool _inited;
-
-  std::thread _thread;
-
-  std::string _device_name;
-
-  RECORD_DESKTOP_RECT _rect;
-
-  int _fps;
-
-  cb_desktop_data _on_data;
-  cb_desktop_error _on_error;
-};
-
-#endif

src/screen_capture/windows/screen_capture_wgc.cpp

@@ -1,138 +0,0 @@
-#include "screen_capture_wgc.h"
-
-#include <Windows.h>
-#include <d3d11_4.h>
-#include <winrt/Windows.Foundation.Metadata.h>
-#include <winrt/Windows.Graphics.Capture.h>
-
-#include <iostream>
-
-BOOL WINAPI EnumMonitorProc(HMONITOR hmonitor, HDC hdc, LPRECT lprc,
-                            LPARAM data) {
-  MONITORINFOEX info_ex;
-  info_ex.cbSize = sizeof(MONITORINFOEX);
-
-  GetMonitorInfo(hmonitor, &info_ex);
-
-  if (info_ex.dwFlags == DISPLAY_DEVICE_MIRRORING_DRIVER) return true;
-
-  if (info_ex.dwFlags & MONITORINFOF_PRIMARY) {
-    *(HMONITOR *)data = hmonitor;
-  }
-
-  return true;
-}
-
-HMONITOR GetPrimaryMonitor() {
-  HMONITOR hmonitor = nullptr;
-
-  ::EnumDisplayMonitors(NULL, NULL, EnumMonitorProc, (LPARAM)&hmonitor);
-
-  return hmonitor;
-}
-
-ScreenCaptureWgc::ScreenCaptureWgc() {}
-
-ScreenCaptureWgc::~ScreenCaptureWgc() {
-  Stop();
-  CleanUp();
-}
-
-bool ScreenCaptureWgc::IsWgcSupported() {
-  try {
-    /* no contract for IGraphicsCaptureItemInterop, verify 10.0.18362.0 */
-    return winrt::Windows::Foundation::Metadata::ApiInformation::
-        IsApiContractPresent(L"Windows.Foundation.UniversalApiContract", 8);
-  } catch (const winrt::hresult_error &) {
-    return false;
-  } catch (...) {
-    return false;
-  }
-}
-
-int ScreenCaptureWgc::Init(const RECORD_DESKTOP_RECT &rect, const int fps,
-                           cb_desktop_data cb) {
-  int error = 0;
-  if (_inited == true) return error;
-
-  _fps = fps;
-
-  _on_data = cb;
-
-  do {
-    if (!IsWgcSupported()) {
-      std::cout << "AE_UNSUPPORT" << std::endl;
-      error = 2;
-      break;
-    }
-
-    session_ = new WgcSessionImpl();
-    if (!session_) {
-      error = -1;
-      std::cout << "AE_WGC_CREATE_CAPTURER_FAILED" << std::endl;
-      break;
-    }
-
-    session_->RegisterObserver(this);
-
-    error = session_->Initialize(GetPrimaryMonitor());
-
-    _inited = true;
-  } while (0);
-
-  if (error != 0) {
-  }
-
-  return error;
-}
-
-int ScreenCaptureWgc::Start() {
-  if (_running == true) {
-    std::cout << "record desktop duplication is already running" << std::endl;
-    return 0;
-  }
-
-  if (_inited == false) {
-    std::cout << "AE_NEED_INIT" << std::endl;
-    return 4;
-  }
-
-  _running = true;
-  session_->Start();
-
-  return 0;
-}
-
-int ScreenCaptureWgc::Pause() {
-  _paused = true;
-  if (session_) session_->Pause();
-  return 0;
-}
-
-int ScreenCaptureWgc::Resume() {
-  _paused = false;
-  if (session_) session_->Resume();
-  return 0;
-}
-
-int ScreenCaptureWgc::Stop() {
-  _running = false;
-
-  if (session_) session_->Stop();
-
-  return 0;
-}
-
-void ScreenCaptureWgc::OnFrame(const WgcSession::wgc_session_frame &frame) {
-  if (_on_data)
-    _on_data((unsigned char *)frame.data, frame.width * frame.height * 4,
-             frame.width, frame.height);
-}
-
-void ScreenCaptureWgc::CleanUp() {
-  _inited = false;
-
-  if (session_) session_->Release();
-
-  session_ = nullptr;
-}

src/screen_capture/windows/screen_capture_wgc.h

@@ -1,61 +0,0 @@
-#ifndef _SCREEN_CAPTURE_WGC_H_
-#define _SCREEN_CAPTURE_WGC_H_
-
-#include <atomic>
-#include <functional>
-#include <string>
-#include <thread>
-
-#include "wgc_session.h"
-#include "wgc_session_impl.h"
-
-typedef struct {
-  int left;
-  int top;
-  int right;
-  int bottom;
-} RECORD_DESKTOP_RECT;
-
-typedef std::function<void(unsigned char *, int, int, int)> cb_desktop_data;
-typedef std::function<void(int)> cb_desktop_error;
-
-class ScreenCaptureWgc : public WgcSession::wgc_session_observer {
- public:
-  ScreenCaptureWgc();
-  ~ScreenCaptureWgc();
-
- public:
-  bool IsWgcSupported();
-
-  int Init(const RECORD_DESKTOP_RECT &rect, const int fps, cb_desktop_data cb);
-
-  int Start();
-  int Pause();
-  int Resume();
-  int Stop();
-
-  void OnFrame(const WgcSession::wgc_session_frame &frame);
-
- protected:
-  void CleanUp();
-
- private:
-  WgcSession *session_ = nullptr;
-
-  std::atomic_bool _running;
-  std::atomic_bool _paused;
-  std::atomic_bool _inited;
-
-  std::thread _thread;
-
-  std::string _device_name;
-
-  RECORD_DESKTOP_RECT _rect;
-
-  int _fps;
-
-  cb_desktop_data _on_data;
-  cb_desktop_error _on_error;
-};
-
-#endif

src/screen_capturer/linux/screen_capturer_x11.cpp

@@ -1,4 +1,4 @@
-#include "screen_capture_x11.h"
+#include "screen_capturer_x11.h"
 
 #include <iostream>
 
@@ -7,33 +7,41 @@
 #define NV12_BUFFER_SIZE 1280 * 720 * 3 / 2
 unsigned char nv12_buffer_[NV12_BUFFER_SIZE];
 
-ScreenCaptureX11::ScreenCaptureX11() {}
+ScreenCapturerX11::ScreenCapturerX11() {}
 
-ScreenCaptureX11::~ScreenCaptureX11() {
-  if (capture_thread_->joinable()) {
-    capture_thread_->join();
+ScreenCapturerX11::~ScreenCapturerX11() {
+  if (inited_ && capture_thread_.joinable()) {
+    capture_thread_.join();
+    inited_ = false;
   }
 }
 
-int ScreenCaptureX11::Init(const RECORD_DESKTOP_RECT &rect, const int fps,
-                           cb_desktop_data cb) {
+int ScreenCapturerX11::Init(const RECORD_DESKTOP_RECT &rect, const int fps,
+                            cb_desktop_data cb) {
   if (cb) {
     _on_data = cb;
   }
 
+  fps_ = fps;
+
+  av_log_set_level(AV_LOG_QUIET);
+
   pFormatCtx_ = avformat_alloc_context();
 
   avdevice_register_all();
 
   // grabbing frame rate
   av_dict_set(&options_, "framerate", "30", 0);
+  // show remote cursor
+  av_dict_set(&options_, "capture_cursor", "0", 0);
   // Make the grabbed area follow the mouse
   // av_dict_set(&options_, "follow_mouse", "centered", 0);
   // Video frame size. The default is to capture the full screen
   // av_dict_set(&options_, "video_size", "1280x720", 0);
-  ifmt_ = (AVInputFormat *)av_find_input_format("x11grab");
+  std::string capture_method = "x11grab";
+  ifmt_ = (AVInputFormat *)av_find_input_format(capture_method.c_str());
   if (!ifmt_) {
-    printf("Couldn't find_input_format\n");
+    LOG_ERROR("Couldn't find_input_format [{}]", capture_method.c_str());
   }
 
   // Grab at position 10,20
@@ -90,12 +98,19 @@ int ScreenCaptureX11::Init(const RECORD_DESKTOP_RECT &rect, const int fps,
       pFrame_->width, pFrame_->height, pCodecCtx_->pix_fmt, pFrameNv12_->width,
       pFrameNv12_->height, AV_PIX_FMT_NV12, SWS_BICUBIC, NULL, NULL, NULL);
 
+  inited_ = true;
+
   return 0;
 }
 
-int ScreenCaptureX11::Start() {
-  capture_thread_.reset(new std::thread([this]() {
-    while (1) {
+int ScreenCapturerX11::Destroy() {
+  running_ = false;
+  return 0;
+}
+
+int ScreenCapturerX11::Start() {
+  capture_thread_ = std::thread([this]() {
+    while (running_) {
       if (av_read_frame(pFormatCtx_, packet_) >= 0) {
         if (packet_->stream_index == videoindex_) {
           avcodec_send_packet(pCodecCtx_, packet_);
@@ -118,17 +133,20 @@ int ScreenCaptureX11::Start() {
         }
       }
     }
-  }));
+  });
 
   return 0;
 }
 
-int ScreenCaptureX11::Pause() { return 0; }
+int ScreenCapturerX11::Stop() {
+  running_ = false;
+  return 0;
+}
 
-int ScreenCaptureX11::Resume() { return 0; }
+int ScreenCapturerX11::Pause() { return 0; }
 
-int ScreenCaptureX11::Stop() { return 0; }
+int ScreenCapturerX11::Resume() { return 0; }
 
-void ScreenCaptureX11::OnFrame() {}
+void ScreenCapturerX11::OnFrame() {}
 
-void ScreenCaptureX11::CleanUp() {}
+void ScreenCapturerX11::CleanUp() {}

src/screen_capturer/linux/screen_capturer_x11.h

@@ -1,11 +1,12 @@
-#ifndef _SCREEN_CAPTURE_X11_H_
-#define _SCREEN_CAPTURE_X11_H_
+#ifndef _SCREEN_CAPTURER_X11_H_
+#define _SCREEN_CAPTURER_X11_H_
 
 #include <atomic>
 #include <functional>
 #include <string>
 #include <thread>
 
+#include "screen_capturer.h"
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -18,28 +19,23 @@ extern "C" {
 };
 #endif
 
-typedef struct {
-  int left;
-  int top;
-  int right;
-  int bottom;
-} RECORD_DESKTOP_RECT;
-
-typedef std::function<void(unsigned char *, int, int, int)> cb_desktop_data;
-typedef std::function<void(int)> cb_desktop_error;
-
-class ScreenCaptureX11 {
+class ScreenCapturerX11 : public ScreenCapturer {
  public:
-  ScreenCaptureX11();
-  ~ScreenCaptureX11();
+  ScreenCapturerX11();
+  ~ScreenCapturerX11();
 
  public:
-  int Init(const RECORD_DESKTOP_RECT &rect, const int fps, cb_desktop_data cb);
+  virtual int Init(const RECORD_DESKTOP_RECT &rect, const int fps,
+                   cb_desktop_data cb);
+
+  virtual int Destroy();
+
+  virtual int Start();
+
+  virtual int Stop();
 
-  int Start();
   int Pause();
   int Resume();
-  int Stop();
 
   void OnFrame();
 
@@ -60,12 +56,14 @@ class ScreenCaptureX11 {
   int _fps;
 
   cb_desktop_data _on_data;
-  cb_desktop_error _on_error;
 
  private:
   int i_ = 0;
   int videoindex_ = 0;
   int got_picture_ = 0;
+  int fps_ = 0;
+  bool inited_ = false;
+
   // ffmpeg
   AVFormatContext *pFormatCtx_ = nullptr;
   AVCodecContext *pCodecCtx_ = nullptr;
@@ -79,7 +77,8 @@ class ScreenCaptureX11 {
   struct SwsContext *img_convert_ctx_ = nullptr;
 
   // thread
-  std::unique_ptr<std::thread> capture_thread_ = nullptr;
+  std::thread capture_thread_;
+  std::atomic_bool running_;
 };
 
 #endif

src/screen_capturer/macosx/avfoundation/screen_capturer_avf.cpp

@@ -0,0 +1,212 @@
+#include "screen_capturer_avf.h"
+
+#include <ApplicationServices/ApplicationServices.h>
+
+#include <iostream>
+
+#include "rd_log.h"
+
+#define USE_SCALE_FACTOR 0
+
+ScreenCapturerAvf::ScreenCapturerAvf() {}
+
+ScreenCapturerAvf::~ScreenCapturerAvf() {
+  if (inited_ && capture_thread_.joinable()) {
+    capture_thread_.join();
+    inited_ = false;
+  }
+
+  if (nv12_frame_) {
+    delete[] nv12_frame_;
+    nv12_frame_ = nullptr;
+  }
+
+  if (pFormatCtx_) {
+    avformat_close_input(&pFormatCtx_);
+    pFormatCtx_ = nullptr;
+  }
+
+  if (pCodecCtx_) {
+    avcodec_free_context(&pCodecCtx_);
+    pCodecCtx_ = nullptr;
+  }
+
+  if (options_) {
+    av_dict_free(&options_);
+    options_ = nullptr;
+  }
+
+  if (pFrame_) {
+    av_frame_free(&pFrame_);
+    pFrame_ = nullptr;
+  }
+
+  if (packet_) {
+    av_packet_free(&packet_);
+    packet_ = nullptr;
+  }
+
+#if USE_SCALE_FACTOR
+  if (img_convert_ctx_) {
+    sws_freeContext(img_convert_ctx_);
+    img_convert_ctx_ = nullptr;
+  }
+#endif
+}
+
+int ScreenCapturerAvf::Init(const int fps, cb_desktop_data cb) {
+  if (cb) {
+    _on_data = cb;
+  }
+
+  av_log_set_level(AV_LOG_QUIET);
+
+  pFormatCtx_ = avformat_alloc_context();
+
+  avdevice_register_all();
+
+  // grabbing frame rate
+  av_dict_set(&options_, "framerate", "60", 0);
+  av_dict_set(&options_, "pixel_format", "nv12", 0);
+  // show remote cursor
+  av_dict_set(&options_, "capture_cursor", "0", 0);
+  // Make the grabbed area follow the mouse
+  // av_dict_set(&options_, "follow_mouse", "centered", 0);
+  // Video frame size. The default is to capture the full screen
+  // av_dict_set(&options_, "video_size", "1440x900", 0);
+  ifmt_ = (AVInputFormat *)av_find_input_format("avfoundation");
+  if (!ifmt_) {
+    printf("Couldn't find_input_format\n");
+  }
+
+  // Grab at position 10,20
+  if (avformat_open_input(&pFormatCtx_, "Capture screen 0", ifmt_, &options_) !=
+      0) {
+    printf("Couldn't open input stream.\n");
+    return -1;
+  }
+
+  if (avformat_find_stream_info(pFormatCtx_, NULL) < 0) {
+    printf("Couldn't find stream information.\n");
+    return -1;
+  }
+
+  videoindex_ = -1;
+  for (i_ = 0; i_ < pFormatCtx_->nb_streams; i_++)
+    if (pFormatCtx_->streams[i_]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
+      videoindex_ = i_;
+      break;
+    }
+  if (videoindex_ == -1) {
+    printf("Didn't find a video stream.\n");
+    return -1;
+  }
+
+  pCodecParam_ = pFormatCtx_->streams[videoindex_]->codecpar;
+
+  pCodecCtx_ = avcodec_alloc_context3(NULL);
+  avcodec_parameters_to_context(pCodecCtx_, pCodecParam_);
+
+  pCodec_ = const_cast<AVCodec *>(avcodec_find_decoder(pCodecCtx_->codec_id));
+  if (pCodec_ == NULL) {
+    printf("Codec not found.\n");
+    return -1;
+  }
+  if (avcodec_open2(pCodecCtx_, pCodec_, NULL) < 0) {
+    printf("Could not open codec.\n");
+    return -1;
+  }
+
+  const int screen_w = pFormatCtx_->streams[videoindex_]->codecpar->width;
+  const int screen_h = pFormatCtx_->streams[videoindex_]->codecpar->height;
+
+  pFrame_ = av_frame_alloc();
+  pFrame_->width = screen_w;
+  pFrame_->height = screen_h;
+
+#if USE_SCALE_FACTOR
+  pFrame_resized_ = av_frame_alloc();
+  pFrame_resized_->width = CGDisplayPixelsWide(CGMainDisplayID());
+  pFrame_resized_->height = CGDisplayPixelsHigh(CGMainDisplayID());
+
+  img_convert_ctx_ =
+      sws_getContext(pFrame_->width, pFrame_->height, pCodecCtx_->pix_fmt,
+                     pFrame_resized_->width, pFrame_resized_->height,
+                     AV_PIX_FMT_NV12, SWS_BICUBIC, NULL, NULL, NULL);
+#endif
+
+  if (!nv12_frame_) {
+    nv12_frame_ = new unsigned char[screen_w * screen_h * 3 / 2];
+  }
+
+  packet_ = (AVPacket *)av_malloc(sizeof(AVPacket));
+
+  inited_ = true;
+
+  return 0;
+}
+
+int ScreenCapturerAvf::Destroy() {
+  running_ = false;
+  return 0;
+}
+
+int ScreenCapturerAvf::Start() {
+  if (running_) {
+    return 0;
+  }
+
+  running_ = true;
+  capture_thread_ = std::thread([this]() {
+    while (running_) {
+      if (av_read_frame(pFormatCtx_, packet_) >= 0) {
+        if (packet_->stream_index == videoindex_) {
+          avcodec_send_packet(pCodecCtx_, packet_);
+          av_packet_unref(packet_);
+          got_picture_ = avcodec_receive_frame(pCodecCtx_, pFrame_);
+
+          if (!got_picture_) {
+#if USE_SCALE_FACTOR
+            av_image_fill_arrays(pFrame_resized_->data,
+                                 pFrame_resized_->linesize, nv12_frame_,
+                                 AV_PIX_FMT_NV12, pFrame_resized_->width,
+                                 pFrame_resized_->height, 1);
+
+            sws_scale(img_convert_ctx_, pFrame_->data, pFrame_->linesize, 0,
+                      pFrame_->height, pFrame_resized_->data,
+                      pFrame_resized_->linesize);
+
+            _on_data((unsigned char *)nv12_frame_,
+                     pFrame_resized_->width * pFrame_resized_->height * 3 / 2,
+                     pFrame_resized_->width, pFrame_resized_->height);
+#else
+            memcpy(nv12_frame_, pFrame_->data[0],
+                   pFrame_->linesize[0] * pFrame_->height);
+            memcpy(nv12_frame_ + pFrame_->linesize[0] * pFrame_->height,
+                   pFrame_->data[1],
+                   pFrame_->linesize[1] * pFrame_->height / 2);
+            _on_data((unsigned char *)nv12_frame_,
+                     pFrame_->width * pFrame_->height * 3 / 2, pFrame_->width,
+                     pFrame_->height);
+#endif
+          }
+        }
+      }
+    }
+  });
+
+  return 0;
+}
+
+int ScreenCapturerAvf::Stop() {
+  running_ = false;
+  return 0;
+}
+
+int ScreenCapturerAvf::Pause() { return 0; }
+
+int ScreenCapturerAvf::Resume() { return 0; }
+
+void ScreenCapturerAvf::OnFrame() {}
+
+void ScreenCapturerAvf::CleanUp() {}

src/screen_capturer/macosx/avfoundation/screen_capturer_avf.h

@@ -0,0 +1,87 @@
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2023-12-01
+ * Copyright (c) 2023 by DI JUNKUN, All Rights Reserved.
+ */
+
+#ifndef _SCREEN_CAPTURER_AVF_H_
+#define _SCREEN_CAPTURER_AVF_H_
+
+#include <atomic>
+#include <functional>
+#include <string>
+#include <thread>
+
+#include "screen_capturer.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+#include <libavcodec/avcodec.h>
+#include <libavdevice/avdevice.h>
+#include <libavformat/avformat.h>
+#include <libavutil/imgutils.h>
+#include <libswscale/swscale.h>
+#ifdef __cplusplus
+};
+#endif
+
+class ScreenCapturerAvf : public ScreenCapturer {
+ public:
+  ScreenCapturerAvf();
+  ~ScreenCapturerAvf();
+
+ public:
+  virtual int Init(const int fps, cb_desktop_data cb);
+
+  virtual int Destroy();
+
+  virtual int Start();
+
+  virtual int Stop();
+
+  int Pause();
+  int Resume();
+
+  void OnFrame();
+
+ protected:
+  void CleanUp();
+
+ private:
+  std::atomic_bool _paused;
+  std::atomic_bool _inited;
+
+  std::thread _thread;
+
+  std::string _device_name;
+
+  int _fps;
+
+  cb_desktop_data _on_data;
+
+ private:
+  int i_ = 0;
+  int videoindex_ = 0;
+  int got_picture_ = 0;
+  bool inited_ = false;
+
+  // ffmpeg
+  AVFormatContext *pFormatCtx_ = nullptr;
+  AVCodecContext *pCodecCtx_ = nullptr;
+  AVCodec *pCodec_ = nullptr;
+  AVCodecParameters *pCodecParam_ = nullptr;
+  AVDictionary *options_ = nullptr;
+  AVInputFormat *ifmt_ = nullptr;
+  AVFrame *pFrame_ = nullptr;
+  AVFrame *pFrame_resized_ = nullptr;
+  AVPacket *packet_ = nullptr;
+  struct SwsContext *img_convert_ctx_ = nullptr;
+  unsigned char *nv12_frame_ = nullptr;
+
+  // thread
+  std::thread capture_thread_;
+  std::atomic_bool running_;
+};
+
+#endif

src/screen_capturer/macosx/core_graphics/screen_capturer_cg.cpp

@@ -0,0 +1,104 @@
+#include <IOSurface/IOSurface.h>
+
+#include <utility>
+
+#include "rd_log.h"
+#include "screen_capturer_cgd.h"
+
+ScreenCapturerCg::ScreenCapturerCg() {}
+
+ScreenCapturerCg::~ScreenCapturerCg() {}
+
+int ScreenCapturerCg::Init(const int fps, cb_desktop_data cb) {
+  if (cb) {
+    _on_data = cb;
+  }
+
+  size_t pixel_width = 1280;
+  size_t pixel_height = 720;
+  CGDirectDisplayID display_id = 0;
+
+  CGDisplayStreamFrameAvailableHandler handler =
+      ^(CGDisplayStreamFrameStatus status, uint64_t display_time,
+        IOSurfaceRef frame_surface, CGDisplayStreamUpdateRef updateRef) {
+        if (status == kCGDisplayStreamFrameStatusStopped) return;
+        // Only pay attention to frame updates.
+        if (status != kCGDisplayStreamFrameStatusFrameComplete) return;
+
+        // size_t count = 0;
+        // const CGRect* rects = CGDisplayStreamUpdateGetRects(
+        //     updateRef, kCGDisplayStreamUpdateDirtyRects, &count);
+
+        // 获取帧数据
+        void* frameData = IOSurfaceGetBaseAddressOfPlane(frame_surface, 0);
+        size_t width = IOSurfaceGetWidthOfPlane(frame_surface, 0);
+        size_t height = IOSurfaceGetHeightOfPlane(frame_surface, 0);
+      };
+
+  CFDictionaryRef properties_dictionary = CFDictionaryCreate(
+      kCFAllocatorDefault, (const void*[]){kCGDisplayStreamShowCursor},
+      (const void*[]){kCFBooleanFalse}, 1, &kCFTypeDictionaryKeyCallBacks,
+      &kCFTypeDictionaryValueCallBacks);
+
+  CGDisplayStreamRef display_stream =
+      CGDisplayStreamCreate(display_id, pixel_width, pixel_height, 'BGRA',
+                            properties_dictionary, handler);
+
+  if (display_stream) {
+    CGError error = CGDisplayStreamStart(display_stream);
+    if (error != kCGErrorSuccess) return -1;
+
+    CFRunLoopSourceRef source = CGDisplayStreamGetRunLoopSource(display_stream);
+    CFRunLoopAddSource(CFRunLoopGetCurrent(), source, kCFRunLoopCommonModes);
+    display_streams_.push_back(display_stream);
+  }
+
+  CFRelease(properties_dictionary);
+
+  return 0;
+}
+
+int ScreenCapturerCg::Destroy() {
+  running_ = false;
+  return 0;
+}
+
+int ScreenCapturerCg::Start() {
+  if (_running) {
+    return 0;
+  }
+
+  running_ = true;
+  capture_thread_ = std::thread([this]() {
+    while (running_) {
+      CFRunLoopRun();
+    }
+  });
+
+  return 0;
+}
+
+int ScreenCapturerCg::Stop() {
+  running_ = false;
+  return 0;
+}
+
+int ScreenCapturerCg::Pause() { return 0; }
+
+int ScreenCapturerCg::Resume() { return 0; }
+
+void ScreenCapturerCg::OnFrame() {}
+
+void ScreenCapturerCg::CleanUp() {}
+
+//
+
+void ScreenCapturerCg::UnregisterRefreshAndMoveHandlers() {
+  for (CGDisplayStreamRef stream : display_streams_) {
+    CFRunLoopSourceRef source = CGDisplayStreamGetRunLoopSource(stream);
+    CFRunLoopRemoveSource(CFRunLoopGetCurrent(), source, kCFRunLoopCommonModes);
+    CGDisplayStreamStop(stream);
+    CFRelease(stream);
+  }
+  display_streams_.clear();
+}

src/screen_capturer/macosx/core_graphics/screen_capturer_cg.h

@@ -0,0 +1,56 @@
+
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2024-10-16
+ * Copyright (c) 2024 by DI JUNKUN, All Rights Reserved.
+ */
+
+#ifndef _SCREEN_CAPTURER_CGD_H_
+#define _SCREEN_CAPTURER_CGD_H_
+
+#include <CoreGraphics/CoreGraphics.h>
+
+#include <atomic>
+#include <functional>
+#include <memory>
+#include <string>
+#include <thread>
+#include <vector>
+
+#include "screen_capturer.h"
+
+class ScreenCapturerCg : public ScreenCapturer {
+ public:
+  ScreenCapturerCg();
+  ~ScreenCapturerCg();
+
+ public:
+  virtual int Init(const int fps, cb_desktop_data cb);
+
+  virtual int Destroy();
+
+  virtual int Start();
+
+  virtual int Stop();
+
+  int Pause();
+
+  int Resume();
+
+  void OnFrame();
+
+ protected:
+  void CleanUp();
+
+ private:
+  int _fps;
+  cb_desktop_data _on_data;
+
+  // thread
+  std::thread capture_thread_;
+  std::atomic_bool running_;
+
+ private:
+};
+
+#endif

src/screen_capturer/macosx/screen_capturer_kit/screen_capturer_sck.cpp

@@ -0,0 +1,51 @@
+#include "screen_capturer_sck.h"
+
+#include "rd_log.h"
+
+ScreenCapturerSck::ScreenCapturerSck() {}
+ScreenCapturerSck::~ScreenCapturerSck() {
+  // if (inited_ && capture_thread_.joinable()) {
+  //   capture_thread_.join();
+  //   inited_ = false;
+  // }
+}
+
+int ScreenCapturerSck::Init(const int fps, cb_desktop_data cb) {
+  if (cb) {
+    on_data_ = cb;
+  } else {
+    LOG_ERROR("cb is null");
+    return -1;
+  }
+
+  screen_capturer_sck_impl_ = CreateScreenCapturerSck();
+  screen_capturer_sck_impl_->Init(fps, on_data_);
+
+  return 0;
+}
+
+int ScreenCapturerSck::Destroy() { return 0; }
+
+int ScreenCapturerSck::Start() {
+  // if (running_) {
+  //   return 0;
+  // }
+
+  // running_ = true;
+  // capture_thread_ = std::thread([this]() {
+  //   while (running_) {
+  //   }
+  // });
+
+  return 0;
+}
+
+int ScreenCapturerSck::Stop() { return 0; }
+
+int ScreenCapturerSck::Pause() { return 0; }
+
+int ScreenCapturerSck::Resume() { return 0; }
+
+void ScreenCapturerSck::OnFrame() {}
+
+void ScreenCapturerSck::CleanUp() {}

src/screen_capturer/macosx/screen_capturer_kit/screen_capturer_sck.h

@@ -0,0 +1,59 @@
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2024-10-17
+ * Copyright (c) 2024 by DI JUNKUN, All Rights Reserved.
+ */
+
+#ifndef _SCREEN_CAPTURER_SCK_H_
+#define _SCREEN_CAPTURER_SCK_H_
+
+#include <atomic>
+#include <functional>
+#include <memory>
+#include <string>
+#include <thread>
+#include <vector>
+
+#include "screen_capturer.h"
+
+class ScreenCapturerSck : public ScreenCapturer {
+ public:
+  ScreenCapturerSck();
+  ~ScreenCapturerSck();
+
+ public:
+  virtual int Init(const int fps, cb_desktop_data cb);
+
+  virtual int Destroy();
+
+  virtual int Start();
+
+  virtual int Stop();
+
+  int Pause();
+
+  int Resume();
+
+  void OnFrame();
+
+ protected:
+  void CleanUp();
+
+ private:
+  std::unique_ptr<ScreenCapturer> CreateScreenCapturerSck();
+
+ private:
+  int _fps;
+  cb_desktop_data on_data_;
+  unsigned char* nv12_frame_ = nullptr;
+  bool inited_ = false;
+
+  // thread
+  std::thread capture_thread_;
+  std::atomic_bool running_;
+
+ private:
+  std::unique_ptr<ScreenCapturer> screen_capturer_sck_impl_;
+};
+
+#endif

src/screen_capturer/macosx/screen_capturer_kit/screen_capturer_sck_impl.mm

@@ -0,0 +1,256 @@
+/*
+ *  Copyright (c) 2024 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "screen_capturer_sck.h"
+
+#include "rd_log.h"
+#include <CoreGraphics/CoreGraphics.h>
+#include <IOSurface/IOSurface.h>
+#include <ScreenCaptureKit/ScreenCaptureKit.h>
+#include <atomic>
+#include <mutex>
+
+class ScreenCapturerSckImpl;
+
+// The ScreenCaptureKit API was available in macOS 12.3, but full-screen capture
+// was reported to be broken before macOS 13 - see http://crbug.com/40234870.
+// Also, the `SCContentFilter` fields `contentRect` and `pointPixelScale` were
+// introduced in macOS 14.
+API_AVAILABLE(macos(14.0))
+@interface SckHelper : NSObject <SCStreamDelegate, SCStreamOutput>
+
+- (instancetype)initWithCapturer:(ScreenCapturerSckImpl *)capturer;
+
+- (void)onShareableContentCreated:(SCShareableContent *)content;
+
+// Called just before the capturer is destroyed. This avoids a dangling pointer,
+// and prevents any new calls into a deleted capturer. If any method-call on the
+// capturer is currently running on a different thread, this blocks until it
+// completes.
+- (void)releaseCapturer;
+@end
+
+class API_AVAILABLE(macos(14.0)) ScreenCapturerSckImpl : public ScreenCapturer {
+public:
+  explicit ScreenCapturerSckImpl();
+
+  ScreenCapturerSckImpl(const ScreenCapturerSckImpl &) = delete;
+  ScreenCapturerSckImpl &operator=(const ScreenCapturerSckImpl &) = delete;
+  ~ScreenCapturerSckImpl();
+
+public:
+  int Init(const int fps, cb_desktop_data cb);
+  void OnReceiveContent(SCShareableContent *content);
+  void OnNewIOSurface(IOSurfaceRef io_surface, CFDictionaryRef attachment);
+
+  virtual int Destroy() { return 0; }
+
+  virtual int Start() { return 0; }
+
+  virtual int Stop() { return 0; }
+
+private:
+  SckHelper *__strong helper_;
+  SCStream *__strong stream_;
+
+  cb_desktop_data _on_data;
+  unsigned char *nv12_frame_ = nullptr;
+  bool permanent_error_ = false;
+  CGDirectDisplayID current_display_ = -1;
+  std::mutex mtx_;
+};
+
+@implementation SckHelper {
+  // This lock is to prevent the capturer being destroyed while an instance
+  // method is still running on another thread.
+  std::mutex helper_mtx_;
+  ScreenCapturerSckImpl *_capturer;
+}
+
+- (instancetype)initWithCapturer:(ScreenCapturerSckImpl *)capturer {
+  self = [super init];
+  if (self) {
+    _capturer = capturer;
+  }
+  return self;
+}
+
+- (void)onShareableContentCreated:(SCShareableContent *)content {
+  std::lock_guard<std::mutex> lock(helper_mtx_);
+  if (_capturer) {
+    _capturer->OnReceiveContent(content);
+  } else {
+    LOG_ERROR("Invalid capturer");
+  }
+}
+
+- (void)stream:(SCStream *)stream
+    didOutputSampleBuffer:(CMSampleBufferRef)sampleBuffer
+                   ofType:(SCStreamOutputType)type {
+  CVPixelBufferRef pixelBuffer = CMSampleBufferGetImageBuffer(sampleBuffer);
+  if (!pixelBuffer) {
+    return;
+  }
+
+  IOSurfaceRef ioSurface = CVPixelBufferGetIOSurface(pixelBuffer);
+  if (!ioSurface) {
+    return;
+  }
+
+  CFArrayRef attachmentsArray = CMSampleBufferGetSampleAttachmentsArray(
+      sampleBuffer, /*createIfNecessary=*/false);
+  if (!attachmentsArray || CFArrayGetCount(attachmentsArray) <= 0) {
+    LOG_ERROR("Discarding frame with no attachments");
+    return;
+  }
+
+  CFDictionaryRef attachment =
+      static_cast<CFDictionaryRef>(CFArrayGetValueAtIndex(attachmentsArray, 0));
+
+  std::lock_guard<std::mutex> lock(helper_mtx_);
+  if (_capturer) {
+    _capturer->OnNewIOSurface(ioSurface, attachment);
+  }
+}
+
+- (void)releaseCapturer {
+  std::lock_guard<std::mutex> lock(helper_mtx_);
+  _capturer = nullptr;
+}
+
+@end
+
+ScreenCapturerSckImpl::ScreenCapturerSckImpl() {
+  helper_ = [[SckHelper alloc] initWithCapturer:this];
+}
+
+ScreenCapturerSckImpl::~ScreenCapturerSckImpl() {
+  [stream_ stopCaptureWithCompletionHandler:nil];
+  [helper_ releaseCapturer];
+}
+
+int ScreenCapturerSckImpl::Init(const int fps, cb_desktop_data cb) {
+  _on_data = cb;
+
+  SckHelper *local_helper = helper_;
+  auto handler = ^(SCShareableContent *content, NSError *error) {
+    [local_helper onShareableContentCreated:content];
+  };
+
+  [SCShareableContent getShareableContentWithCompletionHandler:handler];
+
+  return 0;
+}
+
+void ScreenCapturerSckImpl::OnReceiveContent(SCShareableContent *content) {
+  if (!content) {
+    LOG_ERROR("getShareableContent failed");
+    permanent_error_ = true;
+    return;
+  }
+
+  if (!content.displays.count) {
+    LOG_ERROR("getShareableContent returned no displays");
+    permanent_error_ = true;
+    return;
+  }
+
+  SCDisplay *captured_display;
+  {
+    std::lock_guard<std::mutex> lock(mtx_);
+    for (SCDisplay *display in content.displays) {
+      if (current_display_ == display.displayID) {
+        captured_display = display;
+        break;
+      }
+    }
+    if (!captured_display) {
+      if (-1 == current_display_) {
+        LOG_ERROR("Full screen capture is not supported, falling back to first "
+                  "display");
+      } else {
+        LOG_ERROR("Display [{}] not found, falling back to first display",
+                  current_display_);
+      }
+      captured_display = content.displays.firstObject;
+    }
+  }
+
+  SCContentFilter *filter =
+      [[SCContentFilter alloc] initWithDisplay:captured_display
+                              excludingWindows:@[]];
+  SCStreamConfiguration *config = [[SCStreamConfiguration alloc] init];
+  config.pixelFormat = kCVPixelFormatType_420YpCbCr8BiPlanarVideoRange;
+  config.showsCursor = false;
+  config.width = filter.contentRect.size.width * filter.pointPixelScale;
+  config.height = filter.contentRect.size.height * filter.pointPixelScale;
+  config.captureResolution = SCCaptureResolutionNominal;
+
+  std::lock_guard<std::mutex> lock(mtx_);
+
+  if (stream_) {
+    LOG_INFO("Updating stream configuration");
+    [stream_ updateContentFilter:filter completionHandler:nil];
+    [stream_ updateConfiguration:config completionHandler:nil];
+  } else {
+    stream_ = [[SCStream alloc] initWithFilter:filter
+                                 configuration:config
+                                      delegate:helper_];
+
+    // TODO: crbug.com/327458809 - Choose an appropriate sampleHandlerQueue for
+    // best performance.
+    NSError *add_stream_output_error;
+    bool add_stream_output_result =
+        [stream_ addStreamOutput:helper_
+                            type:SCStreamOutputTypeScreen
+              sampleHandlerQueue:nil
+                           error:&add_stream_output_error];
+    if (!add_stream_output_result) {
+      stream_ = nil;
+      LOG_ERROR("addStreamOutput failed");
+      permanent_error_ = true;
+      return;
+    }
+
+    auto handler = ^(NSError *error) {
+      if (error) {
+        // It should be safe to access `this` here, because the C++ destructor
+        // calls stopCaptureWithCompletionHandler on the stream, which cancels
+        // this handler.
+        permanent_error_ = true;
+        LOG_ERROR("startCaptureWithCompletionHandler failed");
+      } else {
+        LOG_INFO("Capture started");
+      }
+    };
+
+    [stream_ startCaptureWithCompletionHandler:handler];
+  }
+}
+
+void ScreenCapturerSckImpl::OnNewIOSurface(IOSurfaceRef io_surface,
+                                           CFDictionaryRef attachment) {
+  size_t width = IOSurfaceGetWidth(io_surface);
+  size_t height = IOSurfaceGetHeight(io_surface);
+
+  uint32_t aseed;
+  IOSurfaceLock(io_surface, kIOSurfaceLockReadOnly, &aseed);
+
+  nv12_frame_ =
+      static_cast<unsigned char *>(IOSurfaceGetBaseAddress(io_surface));
+
+  _on_data(nv12_frame_, width * height * 3 / 2, width, height);
+
+  IOSurfaceUnlock(io_surface, kIOSurfaceLockReadOnly, &aseed);
+}
+
+std::unique_ptr<ScreenCapturer> ScreenCapturerSck::CreateScreenCapturerSck() {
+  return std::make_unique<ScreenCapturerSckImpl>();
+}

src/screen_capturer/screen_capturer.h

@@ -0,0 +1,28 @@
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2023-12-15
+ * Copyright (c) 2023 by DI JUNKUN, All Rights Reserved.
+ */
+
+#ifndef _SCREEN_CAPTURER_H_
+#define _SCREEN_CAPTURER_H_
+
+#include <functional>
+
+class ScreenCapturer {
+ public:
+  typedef std::function<void(unsigned char *, int, int, int)> cb_desktop_data;
+
+ public:
+  virtual ~ScreenCapturer() {}
+
+ public:
+  virtual int Init(const int fps, cb_desktop_data cb) = 0;
+  virtual int Destroy() = 0;
+
+  virtual int Start() = 0;
+
+  virtual int Stop() = 0;
+};
+
+#endif

src/screen_capturer/screen_capturer_factory.h

@@ -0,0 +1,38 @@
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2023-12-15
+ * Copyright (c) 2023 by DI JUNKUN, All Rights Reserved.
+ */
+
+#ifndef _SCREEN_CAPTURER_FACTORY_H_
+#define _SCREEN_CAPTURER_FACTORY_H_
+
+#ifdef _WIN32
+#include "screen_capturer_wgc.h"
+#elif __linux__
+#include "screen_capturer_x11.h"
+#elif __APPLE__
+// #include "screen_capturer_avf.h"
+#include "screen_capturer_sck.h"
+#endif
+
+class ScreenCapturerFactory {
+ public:
+  virtual ~ScreenCapturerFactory() {}
+
+ public:
+  ScreenCapturer* Create() {
+#ifdef _WIN32
+    return new ScreenCapturerWgc();
+#elif __linux__
+    return new ScreenCapturerX11();
+#elif __APPLE__
+    // return new ScreenCapturerAvf();
+    return new ScreenCapturerSck();
+#else
+    return nullptr;
+#endif
+  }
+};
+
+#endif

src/screen_capturer/windows/screen_capturer_wgc.cpp

@@ -0,0 +1,197 @@
+#include "screen_capturer_wgc.h"
+
+#include <Windows.h>
+#include <d3d11_4.h>
+#include <winrt/Windows.Foundation.Metadata.h>
+#include <winrt/Windows.Graphics.Capture.h>
+
+#include <iostream>
+
+#include "libyuv.h"
+
+BOOL WINAPI EnumMonitorProc(HMONITOR hmonitor, [[maybe_unused]] HDC hdc,
+                            [[maybe_unused]] LPRECT lprc, LPARAM data) {
+  MONITORINFOEX info_ex;
+  info_ex.cbSize = sizeof(MONITORINFOEX);
+
+  GetMonitorInfo(hmonitor, &info_ex);
+
+  if (info_ex.dwFlags == DISPLAY_DEVICE_MIRRORING_DRIVER) return true;
+
+  if (info_ex.dwFlags & MONITORINFOF_PRIMARY) {
+    *(HMONITOR *)data = hmonitor;
+  }
+
+  return true;
+}
+
+HMONITOR GetPrimaryMonitor() {
+  HMONITOR hmonitor = nullptr;
+
+  ::EnumDisplayMonitors(NULL, NULL, EnumMonitorProc, (LPARAM)&hmonitor);
+
+  return hmonitor;
+}
+
+ScreenCapturerWgc::ScreenCapturerWgc() {}
+
+ScreenCapturerWgc::~ScreenCapturerWgc() {
+  Stop();
+  CleanUp();
+
+  if (nv12_frame_) {
+    delete nv12_frame_;
+    nv12_frame_ = nullptr;
+  }
+
+  if (nv12_frame_scaled_) {
+    delete nv12_frame_scaled_;
+    nv12_frame_scaled_ = nullptr;
+  }
+}
+
+bool ScreenCapturerWgc::IsWgcSupported() {
+  try {
+    /* no contract for IGraphicsCaptureItemInterop, verify 10.0.18362.0 */
+    return winrt::Windows::Foundation::Metadata::ApiInformation::
+        IsApiContractPresent(L"Windows.Foundation.UniversalApiContract", 8);
+  } catch (const winrt::hresult_error &) {
+    return false;
+  } catch (...) {
+    return false;
+  }
+}
+
+int ScreenCapturerWgc::Init(const int fps, cb_desktop_data cb) {
+  int error = 0;
+  if (_inited == true) return error;
+
+  // nv12_frame_ = new unsigned char[rect.right * rect.bottom * 3 / 2];
+  // nv12_frame_scaled_ = new unsigned char[1280 * 720 * 3 / 2];
+
+  _fps = fps;
+
+  _on_data = cb;
+
+  do {
+    if (!IsWgcSupported()) {
+      std::cout << "AE_UNSUPPORT" << std::endl;
+      error = 2;
+      break;
+    }
+
+    session_ = new WgcSessionImpl();
+    if (!session_) {
+      error = -1;
+      std::cout << "AE_WGC_CREATE_CAPTURER_FAILED" << std::endl;
+      break;
+    }
+
+    session_->RegisterObserver(this);
+
+    error = session_->Initialize(GetPrimaryMonitor());
+
+    _inited = true;
+  } while (0);
+
+  if (error != 0) {
+  }
+
+  return error;
+}
+
+int ScreenCapturerWgc::Destroy() { return 0; }
+
+int ScreenCapturerWgc::Start() {
+  if (_running == true) {
+    std::cout << "record desktop duplication is already running" << std::endl;
+    return 0;
+  }
+
+  if (_inited == false) {
+    std::cout << "AE_NEED_INIT" << std::endl;
+    return 4;
+  }
+
+  _running = true;
+  session_->Start();
+
+  return 0;
+}
+
+int ScreenCapturerWgc::Pause() {
+  _paused = true;
+  if (session_) session_->Pause();
+  return 0;
+}
+
+int ScreenCapturerWgc::Resume() {
+  _paused = false;
+  if (session_) session_->Resume();
+  return 0;
+}
+
+int ScreenCapturerWgc::Stop() {
+  _running = false;
+
+  if (session_) session_->Stop();
+
+  return 0;
+}
+
+void ConvertABGRtoBGRA(const uint8_t *abgr_data, uint8_t *bgra_data, int width,
+                       int height, int abgr_stride, int bgra_stride) {
+  for (int i = 0; i < height; ++i) {
+    for (int j = 0; j < width; ++j) {
+      int abgr_index = (i * abgr_stride + j) * 4;
+      int bgra_index = (i * bgra_stride + j) * 4;
+
+      bgra_data[bgra_index + 0] = abgr_data[abgr_index + 2];  // 蓝色
+      bgra_data[bgra_index + 1] = abgr_data[abgr_index + 1];  // 绿色
+      bgra_data[bgra_index + 2] = abgr_data[abgr_index + 0];  // 红色
+      bgra_data[bgra_index + 3] = abgr_data[abgr_index + 3];  // Alpha
+    }
+  }
+}
+
+void ConvertBGRAtoABGR(const uint8_t *bgra_data, uint8_t *abgr_data, int width,
+                       int height, int bgra_stride, int abgr_stride) {
+  for (int i = 0; i < height; ++i) {
+    for (int j = 0; j < width; ++j) {
+      int bgra_index = (i * bgra_stride + j) * 4;
+      int abgr_index = (i * abgr_stride + j) * 4;
+
+      abgr_data[abgr_index + 0] = bgra_data[bgra_index + 3];  // Alpha
+      abgr_data[abgr_index + 1] = bgra_data[bgra_index + 0];  // Blue
+      abgr_data[abgr_index + 2] = bgra_data[bgra_index + 1];  // Green
+      abgr_data[abgr_index + 3] = bgra_data[bgra_index + 2];  // Red
+    }
+  }
+}
+
+void ScreenCapturerWgc::OnFrame(const WgcSession::wgc_session_frame &frame) {
+  if (_on_data) {
+    // int width = 1280;
+    // int height = 720;
+
+    if (!nv12_frame_) {
+      nv12_frame_ = new unsigned char[frame.width * frame.height * 3 / 2];
+    }
+
+    libyuv::ARGBToNV12((const uint8_t *)frame.data, frame.width * 4,
+                       (uint8_t *)nv12_frame_, frame.width,
+                       (uint8_t *)(nv12_frame_ + frame.width * frame.height),
+                       frame.width, frame.width, frame.height);
+
+    _on_data(nv12_frame_, frame.width * frame.height * 3 / 2, frame.width,
+             frame.height);
+  }
+}
+
+void ScreenCapturerWgc::CleanUp() {
+  _inited = false;
+
+  if (session_) session_->Release();
+
+  session_ = nullptr;
+}

src/screen_capturer/windows/screen_capturer_wgc.h

@@ -0,0 +1,55 @@
+#ifndef _SCREEN_CAPTURER_WGC_H_
+#define _SCREEN_CAPTURER_WGC_H_
+
+#include <atomic>
+#include <functional>
+#include <string>
+#include <thread>
+
+#include "screen_capturer.h"
+#include "wgc_session.h"
+#include "wgc_session_impl.h"
+
+class ScreenCapturerWgc : public ScreenCapturer,
+                          public WgcSession::wgc_session_observer {
+ public:
+  ScreenCapturerWgc();
+  ~ScreenCapturerWgc();
+
+ public:
+  bool IsWgcSupported();
+
+  virtual int Init(const int fps, cb_desktop_data cb);
+  virtual int Destroy();
+
+  virtual int Start();
+
+  int Pause();
+  int Resume();
+  virtual int Stop();
+
+  void OnFrame(const WgcSession::wgc_session_frame &frame);
+
+ protected:
+  void CleanUp();
+
+ private:
+  WgcSession *session_ = nullptr;
+
+  std::atomic_bool _running;
+  std::atomic_bool _paused;
+  std::atomic_bool _inited;
+
+  std::thread _thread;
+
+  std::string _device_name;
+
+  int _fps;
+
+  cb_desktop_data _on_data = nullptr;
+
+  unsigned char *nv12_frame_ = nullptr;
+  unsigned char *nv12_frame_scaled_ = nullptr;
+};
+
+#endif

src/screen_capturer/windows/wgc_session_impl.cpp

@@ -89,6 +89,8 @@ int WgcSessionImpl::Start() {
 
     capture_session_.StartCapture();
 
+    capture_session_.IsCursorCaptureEnabled(false);
+
     error = 0;
   } catch (winrt::hresult_error) {
     std::cout << "AE_WGC_CREATE_CAPTURER_FAILED" << std::endl;
@@ -146,7 +148,7 @@ auto WgcSessionImpl::CreateD3D11Device() {
 
   if (DXGI_ERROR_UNSUPPORTED == hr) {
     // change D3D_DRIVER_TYPE
-    D3D_DRIVER_TYPE type = D3D_DRIVER_TYPE_WARP;
+    type = D3D_DRIVER_TYPE_WARP;
     hr = D3D11CreateDevice(nullptr, type, nullptr, flags, nullptr, 0,
                            D3D11_SDK_VERSION, d3d_device.put(), nullptr,
                            nullptr);
@@ -211,7 +213,7 @@ HRESULT WgcSessionImpl::CreateMappedTexture(
 
 void WgcSessionImpl::OnFrame(
     winrt::Windows::Graphics::Capture::Direct3D11CaptureFramePool const &sender,
-    winrt::Windows::Foundation::IInspectable const &args) {
+    [[maybe_unused]] winrt::Windows::Foundation::IInspectable const &args) {
   std::lock_guard locker(lock_);
 
   auto is_new_size = false;

src/single_window/about_window.cpp

@@ -0,0 +1,55 @@
+#include "layout_style.h"
+#include "localization.h"
+#include "rd_log.h"
+#include "render.h"
+
+int Render::AboutWindow() {
+  if (show_about_window_) {
+    const ImGuiViewport *viewport = ImGui::GetMainViewport();
+
+    ImGui::SetNextWindowPos(ImVec2(
+        (viewport->WorkSize.x - viewport->WorkPos.x - about_window_width_) / 2,
+        (viewport->WorkSize.y - viewport->WorkPos.y - about_window_height_) /
+            2));
+
+    ImGui::SetNextWindowSize(ImVec2(about_window_width_, about_window_height_));
+
+    ImGui::PushStyleColor(ImGuiCol_WindowBg, ImVec4(1.0f, 1.0f, 1.0f, 1.0f));
+    ImGui::PushStyleVar(ImGuiStyleVar_WindowBorderSize, 1.0f);
+    ImGui::PushStyleVar(ImGuiStyleVar_WindowRounding, 5.0f);
+    ImGui::PushStyleVar(ImGuiStyleVar_FrameRounding, 3.0f);
+    ImGui::SetWindowFontScale(0.5f);
+    ImGui::Begin(
+        localization::about[localization_language_index_].c_str(), nullptr,
+        ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoCollapse |
+            ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoSavedSettings);
+    ImGui::SetWindowFontScale(1.0f);
+    ImGui::SetWindowFontScale(0.5f);
+
+    std::string version;
+#ifdef RD_VERSION
+    version = RD_VERSION;
+#else
+    version = "Unknown";
+#endif
+
+    std::string text =
+        localization::version[localization_language_index_] + ": " + version;
+    ImGui::Text("%s", text.c_str());
+
+    ImGui::SetCursorPosX(about_window_width_ * 0.42f);
+    ImGui::SetCursorPosY(about_window_height_ * 0.75f);
+    // OK
+    if (ImGui::Button(localization::ok[localization_language_index_].c_str())) {
+      show_about_window_ = false;
+    }
+
+    ImGui::SetWindowFontScale(1.0f);
+    ImGui::SetWindowFontScale(0.5f);
+    ImGui::End();
+    ImGui::SetWindowFontScale(1.0f);
+    ImGui::PopStyleVar(3);
+    ImGui::PopStyleColor();
+  }
+  return 0;
+}

src/single_window/connection_status_window.cpp

@@ -0,0 +1,173 @@
+#include "layout_style.h"
+#include "localization.h"
+#include "rd_log.h"
+#include "render.h"
+
+int Render::ConnectionStatusWindow() {
+  if (show_connection_status_window_) {
+    const ImGuiViewport *viewport = ImGui::GetMainViewport();
+
+    ImGui::SetNextWindowPos(ImVec2((viewport->WorkSize.x - viewport->WorkPos.x -
+                                    connection_status_window_width_) /
+                                       2,
+                                   (viewport->WorkSize.y - viewport->WorkPos.y -
+                                    connection_status_window_height_) /
+                                       2));
+
+    ImGui::SetNextWindowSize(ImVec2(connection_status_window_width_,
+                                    connection_status_window_height_));
+
+    ImGui::PushStyleVar(ImGuiStyleVar_FrameRounding, 3.0f);
+
+    ImGui::PushStyleColor(ImGuiCol_WindowBg, ImVec4(1.0, 1.0, 1.0, 1.0));
+    ImGui::PushStyleVar(ImGuiStyleVar_WindowBorderSize, 1.0f);
+    ImGui::PushStyleVar(ImGuiStyleVar_WindowRounding, 5.0f);
+
+    ImGui::Begin("ConnectionStatusWindow", nullptr,
+                 ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoCollapse |
+                     ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoTitleBar |
+                     ImGuiWindowFlags_NoSavedSettings);
+    ImGui::PopStyleVar(2);
+    ImGui::PopStyleColor();
+
+    ImGui::SetWindowFontScale(0.5f);
+    std::string text;
+
+    if (ConnectionStatus::Connecting == connection_status_) {
+      text = localization::p2p_connecting[localization_language_index_];
+      ImGui::SetCursorPosX(connection_status_window_width_ * 3 / 7);
+      ImGui::SetCursorPosY(connection_status_window_height_ * 2 / 3);
+    } else if (ConnectionStatus::Connected == connection_status_) {
+      text = localization::p2p_connected[localization_language_index_];
+      ImGui::SetCursorPosX(connection_status_window_width_ * 3 / 7);
+      ImGui::SetCursorPosY(connection_status_window_height_ * 2 / 3);
+      // ok
+      if (ImGui::Button(
+              localization::ok[localization_language_index_].c_str()) ||
+          ImGui::IsKeyPressed(ImGuiKey_Enter) ||
+          ImGui::IsKeyPressed(ImGuiKey_Escape)) {
+        show_connection_status_window_ = false;
+      }
+    } else if (ConnectionStatus::Disconnected == connection_status_) {
+      text = localization::p2p_disconnected[localization_language_index_];
+      ImGui::SetCursorPosX(connection_status_window_width_ * 3 / 7);
+      ImGui::SetCursorPosY(connection_status_window_height_ * 2 / 3);
+      // ok
+      if (ImGui::Button(
+              localization::ok[localization_language_index_].c_str()) ||
+          ImGui::IsKeyPressed(ImGuiKey_Enter) ||
+          ImGui::IsKeyPressed(ImGuiKey_Escape)) {
+        show_connection_status_window_ = false;
+      }
+    } else if (ConnectionStatus::Failed == connection_status_) {
+      text = localization::p2p_failed[localization_language_index_];
+      ImGui::SetCursorPosX(connection_status_window_width_ * 3 / 7);
+      ImGui::SetCursorPosY(connection_status_window_height_ * 2 / 3);
+      // ok
+      if (ImGui::Button(
+              localization::ok[localization_language_index_].c_str()) ||
+          ImGui::IsKeyPressed(ImGuiKey_Enter) ||
+          ImGui::IsKeyPressed(ImGuiKey_Escape)) {
+        show_connection_status_window_ = false;
+      }
+    } else if (ConnectionStatus::Closed == connection_status_) {
+      text = localization::p2p_closed[localization_language_index_];
+      ImGui::SetCursorPosX(connection_status_window_width_ * 3 / 7);
+      ImGui::SetCursorPosY(connection_status_window_height_ * 2 / 3);
+      // ok
+      if (ImGui::Button(
+              localization::ok[localization_language_index_].c_str()) ||
+          ImGui::IsKeyPressed(ImGuiKey_Enter) ||
+          ImGui::IsKeyPressed(ImGuiKey_Escape)) {
+        show_connection_status_window_ = false;
+      }
+    } else if (ConnectionStatus::IncorrectPassword == connection_status_) {
+      if (!password_validating_) {
+        if (password_validating_time_ == 1) {
+          text = localization::input_password[localization_language_index_];
+        } else {
+          text = localization::reinput_password[localization_language_index_];
+        }
+
+        auto window_width = ImGui::GetWindowSize().x;
+        auto window_height = ImGui::GetWindowSize().y;
+        ImGui::SetCursorPosX((window_width - IPUT_WINDOW_WIDTH / 2) * 0.5f);
+        ImGui::SetCursorPosY(window_height * 0.4f);
+        ImGui::SetNextItemWidth(IPUT_WINDOW_WIDTH / 2);
+
+        ImGui::PushStyleVar(ImGuiStyleVar_FrameBorderSize, 1.0f);
+
+        if (focus_on_input_widget_) {
+          ImGui::SetKeyboardFocusHere();
+          focus_on_input_widget_ = false;
+        }
+
+        ImGui::InputText("##password", remote_password_,
+                         IM_ARRAYSIZE(remote_password_),
+                         ImGuiInputTextFlags_CharsNoBlank);
+
+        ImGui::SetWindowFontScale(0.4f);
+
+        ImVec2 text_size = ImGui::CalcTextSize(
+            localization::remember_password[localization_language_index_]
+                .c_str());
+        ImGui::SetCursorPosX((window_width - text_size.x) * 0.5f - 13.0f);
+        ImGui::Checkbox(
+            localization::remember_password[localization_language_index_]
+                .c_str(),
+            &remember_password_);
+        ImGui::SetWindowFontScale(0.5f);
+        ImGui::PopStyleVar();
+
+        ImGui::SetCursorPosX(window_width * 0.315f);
+        ImGui::SetCursorPosY(window_height * 0.75f);
+        // ok
+        if (ImGui::Button(
+                localization::ok[localization_language_index_].c_str()) ||
+            ImGui::IsKeyPressed(ImGuiKey_Enter)) {
+          show_connection_status_window_ = true;
+          password_validating_ = true;
+          rejoin_ = true;
+          focus_on_input_widget_ = true;
+        }
+
+        ImGui::SameLine();
+        // cancel
+        if (ImGui::Button(
+                localization::cancel[localization_language_index_].c_str()) ||
+            ImGui::IsKeyPressed(ImGuiKey_Escape)) {
+          memset(remote_password_, 0, sizeof(remote_password_));
+          show_connection_status_window_ = false;
+          focus_on_input_widget_ = true;
+        }
+      } else if (password_validating_) {
+        text = localization::validate_password[localization_language_index_];
+        ImGui::SetCursorPosX(connection_status_window_width_ * 3 / 7);
+        ImGui::SetCursorPosY(connection_status_window_height_ * 2 / 3);
+      }
+    } else if (ConnectionStatus::NoSuchTransmissionId == connection_status_) {
+      text = localization::no_such_id[localization_language_index_];
+      ImGui::SetCursorPosX(connection_status_window_width_ * 3 / 7);
+      ImGui::SetCursorPosY(connection_status_window_height_ * 2 / 3);
+      // ok
+      if (ImGui::Button(
+              localization::ok[localization_language_index_].c_str()) ||
+          ImGui::IsKeyPressed(ImGuiKey_Enter)) {
+        show_connection_status_window_ = false;
+        re_enter_remote_id_ = true;
+      }
+    }
+
+    auto window_width = ImGui::GetWindowSize().x;
+    auto window_height = ImGui::GetWindowSize().y;
+    auto text_width = ImGui::CalcTextSize(text.c_str()).x;
+    ImGui::SetCursorPosX((window_width - text_width) * 0.5f);
+    ImGui::SetCursorPosY(window_height * 0.2f);
+    ImGui::Text("%s", text.c_str());
+    ImGui::SetWindowFontScale(1.0f);
+
+    ImGui::End();
+    ImGui::PopStyleVar();
+  }
+  return 0;
+}

src/single_window/control_bar.cpp

@@ -0,0 +1,281 @@
+#include "layout_style.h"
+#include "localization.h"
+#include "rd_log.h"
+#include "render.h"
+
+int CountDigits(int number) {
+  if (number == 0) return 1;
+  return (int)std::floor(std::log10(std::abs(number))) + 1;
+}
+
+int BitrateDisplay(int bitrate) {
+  int num_of_digits = CountDigits(bitrate);
+  if (num_of_digits <= 3) {
+    ImGui::Text("%d bps", bitrate);
+  } else if (num_of_digits > 3 && num_of_digits <= 6) {
+    ImGui::Text("%d kbps", bitrate / 1000);
+  } else {
+    ImGui::Text("%.1f mbps", bitrate / 1000000.0f);
+  }
+  return 0;
+}
+
+int LossRateDisplay(float loss_rate) {
+  if (loss_rate < 0.01f) {
+    ImGui::Text("0%%");
+  } else {
+    ImGui::Text("%.0f%%", loss_rate * 100);
+  }
+  return 0;
+}
+
+int Render::ControlBar() {
+  ImGui::PushStyleVar(ImGuiStyleVar_FrameRounding, 3.0f);
+
+  ImVec2 mouse_button_pos = ImVec2(0, 0);
+  if (control_bar_expand_) {
+    ImGui::SetCursorPosX(
+        is_control_bar_in_left_ ? (control_window_width_ + 5.0f) : 38.0f);
+    // mouse control button
+    ImDrawList* draw_list = ImGui::GetWindowDrawList();
+
+    if (is_control_bar_in_left_) {
+      draw_list->AddLine(
+          ImVec2(ImGui::GetCursorScreenPos().x - 5.0f,
+                 ImGui::GetCursorScreenPos().y - 7.0f),
+          ImVec2(ImGui::GetCursorScreenPos().x - 5.0f,
+                 ImGui::GetCursorScreenPos().y - 7.0f + control_window_height_),
+          IM_COL32(178, 178, 178, 255), 1.0f);
+    }
+
+    mouse_button_pos = ImGui::GetCursorScreenPos();
+    float disable_mouse_x = ImGui::GetCursorScreenPos().x + 4.0f;
+    float disable_mouse_y = ImGui::GetCursorScreenPos().y + 4.0f;
+    std::string mouse = mouse_control_button_pressed_ ? ICON_FA_COMPUTER_MOUSE
+                                                      : ICON_FA_COMPUTER_MOUSE;
+    if (ImGui::Button(mouse.c_str(), ImVec2(25, 25))) {
+      if (connection_established_) {
+        control_mouse_ = !control_mouse_;
+        start_keyboard_capturer_ = !start_keyboard_capturer_;
+        mouse_control_button_pressed_ = !mouse_control_button_pressed_;
+        mouse_control_button_label_ =
+            mouse_control_button_pressed_
+                ? localization::release_mouse[localization_language_index_]
+                : localization::control_mouse[localization_language_index_];
+      }
+    }
+    if (!mouse_control_button_pressed_) {
+      draw_list->AddLine(
+          ImVec2(disable_mouse_x, disable_mouse_y),
+          ImVec2(disable_mouse_x + 16.0f, disable_mouse_y + 14.2f),
+          IM_COL32(0, 0, 0, 255), 2.0f);
+      draw_list->AddLine(
+          ImVec2(disable_mouse_x - 1.2f, disable_mouse_y + 1.2f),
+          ImVec2(disable_mouse_x + 15.3f, disable_mouse_y + 15.4f),
+          ImGui::IsItemHovered() ? IM_COL32(66, 150, 250, 255)
+                                 : IM_COL32(179, 213, 253, 255),
+          2.0f);
+    }
+
+    ImGui::SameLine();
+    // audio capture button
+    float disable_audio_x = ImGui::GetCursorScreenPos().x + 4;
+    float disable_audio_y = ImGui::GetCursorScreenPos().y + 4.0f;
+    // std::string audio = audio_capture_button_pressed_ ? ICON_FA_VOLUME_HIGH
+    //                                                   : ICON_FA_VOLUME_XMARK;
+    std::string audio = audio_capture_button_pressed_ ? ICON_FA_VOLUME_HIGH
+                                                      : ICON_FA_VOLUME_HIGH;
+    if (ImGui::Button(audio.c_str(), ImVec2(25, 25))) {
+      if (connection_established_) {
+        audio_capture_ = !audio_capture_;
+        audio_capture_button_pressed_ = !audio_capture_button_pressed_;
+        audio_capture_button_label_ =
+            audio_capture_button_pressed_
+                ? localization::audio_capture[localization_language_index_]
+                : localization::mute[localization_language_index_];
+
+        RemoteAction remote_action;
+        remote_action.type = ControlType::audio_capture;
+        remote_action.a = audio_capture_button_pressed_;
+        SendDataFrame(peer_, (const char*)&remote_action,
+                      sizeof(remote_action));
+      }
+    }
+    if (!audio_capture_button_pressed_) {
+      draw_list->AddLine(
+          ImVec2(disable_audio_x, disable_audio_y),
+          ImVec2(disable_audio_x + 16.0f, disable_audio_y + 14.2f),
+          IM_COL32(0, 0, 0, 255), 2.0f);
+      draw_list->AddLine(
+          ImVec2(disable_audio_x - 1.2f, disable_audio_y + 1.2f),
+          ImVec2(disable_audio_x + 15.3f, disable_audio_y + 15.4f),
+          ImGui::IsItemHovered() ? IM_COL32(66, 150, 250, 255)
+                                 : IM_COL32(179, 213, 253, 255),
+          2.0f);
+    }
+
+    ImGui::SameLine();
+    // net traffic stats button
+    bool button_color_style_pushed = false;
+    if (net_traffic_stats_button_pressed_) {
+      ImGui::PushStyleColor(ImGuiCol_Button, ImVec4(66 / 255.0f, 150 / 255.0f,
+                                                    250 / 255.0f, 1.0f));
+      button_color_style_pushed = true;
+    }
+    std::string net_traffic_stats = ICON_FA_SIGNAL;
+    if (ImGui::Button(net_traffic_stats.c_str(), ImVec2(25, 25))) {
+      net_traffic_stats_button_pressed_ = !net_traffic_stats_button_pressed_;
+      control_window_height_is_changing_ = true;
+      net_traffic_stats_button_pressed_time_ = ImGui::GetTime();
+      net_traffic_stats_button_label_ =
+          net_traffic_stats_button_pressed_
+              ? localization::hide_net_traffic_stats
+                    [localization_language_index_]
+              : localization::show_net_traffic_stats
+                    [localization_language_index_];
+    }
+    if (button_color_style_pushed) {
+      ImGui::PopStyleColor();
+      button_color_style_pushed = false;
+    }
+
+    ImGui::SameLine();
+    // fullscreen button
+    std::string fullscreen =
+        fullscreen_button_pressed_ ? ICON_FA_COMPRESS : ICON_FA_EXPAND;
+    if (ImGui::Button(fullscreen.c_str(), ImVec2(25, 25))) {
+      fullscreen_button_pressed_ = !fullscreen_button_pressed_;
+      fullscreen_button_label_ =
+          fullscreen_button_pressed_
+              ? localization::exit_fullscreen[localization_language_index_]
+              : localization::fullscreen[localization_language_index_];
+      // save stream window last size
+      SDL_GetWindowSize(stream_window_, &stream_window_width_last_,
+                        &stream_window_height_last_);
+      if (fullscreen_button_pressed_) {
+        SDL_SetWindowFullscreen(stream_window_, SDL_WINDOW_FULLSCREEN_DESKTOP);
+      } else {
+        SDL_SetWindowFullscreen(stream_window_, SDL_FALSE);
+      }
+      reset_control_bar_pos_ = true;
+    }
+
+    ImGui::SameLine();
+    // close button
+    std::string close_button = ICON_FA_XMARK;
+    if (ImGui::Button(close_button.c_str(), ImVec2(25, 25))) {
+      SDL_Event event;
+      event.type = SDL_QUIT;
+      SDL_PushEvent(&event);
+    }
+
+    ImGui::SameLine();
+
+    if (!is_control_bar_in_left_) {
+      draw_list->AddLine(
+          ImVec2(ImGui::GetCursorScreenPos().x - 3.0f,
+                 ImGui::GetCursorScreenPos().y - 7.0f),
+          ImVec2(ImGui::GetCursorScreenPos().x - 3.0f,
+                 ImGui::GetCursorScreenPos().y - 7.0f + control_window_height_),
+          IM_COL32(178, 178, 178, 255), 1.0f);
+    }
+  }
+
+  ImGui::SetCursorPosX(
+      is_control_bar_in_left_ ? (control_window_width_ * 2 - 20.0f) : 5.0f);
+
+  std::string control_bar =
+      control_bar_expand_
+          ? (is_control_bar_in_left_ ? ICON_FA_ANGLE_LEFT : ICON_FA_ANGLE_RIGHT)
+          : (is_control_bar_in_left_ ? ICON_FA_ANGLE_RIGHT
+                                     : ICON_FA_ANGLE_LEFT);
+  if (ImGui::Button(control_bar.c_str(), ImVec2(15, 25))) {
+    control_bar_expand_ = !control_bar_expand_;
+    control_bar_button_pressed_time_ = ImGui::GetTime();
+    control_window_width_is_changing_ = true;
+
+    if (!control_bar_expand_) {
+      control_window_height_ = 40;
+      net_traffic_stats_button_pressed_ = false;
+    }
+  }
+
+  if (net_traffic_stats_button_pressed_ && control_bar_expand_) {
+    NetTrafficStats();
+  }
+
+  ImGui::PopStyleVar();
+
+  return 0;
+}
+
+int Render::NetTrafficStats() {
+  ImGui::SetCursorPos(ImVec2(
+      is_control_bar_in_left_ ? (control_window_width_ + 5.0f) : 5.0f, 40.0f));
+
+  if (ImGui::BeginTable("NetTrafficStats", 4, ImGuiTableFlags_BordersH,
+                        ImVec2(control_window_max_width_ - 10.0f,
+                               control_window_max_height_ - 40.0f))) {
+    ImGui::TableSetupColumn("", ImGuiTableColumnFlags_WidthFixed);
+    ImGui::TableSetupColumn("", ImGuiTableColumnFlags_WidthStretch);
+    ImGui::TableSetupColumn("", ImGuiTableColumnFlags_WidthStretch);
+    ImGui::TableSetupColumn("", ImGuiTableColumnFlags_WidthFixed);
+
+    ImGui::TableNextColumn();
+    ImGui::Text(" ");
+    ImGui::TableNextColumn();
+    ImGui::Text("%s", localization::in[localization_language_index_].c_str());
+    ImGui::TableNextColumn();
+    ImGui::Text("%s", localization::out[localization_language_index_].c_str());
+    ImGui::TableNextColumn();
+    ImGui::Text("%s",
+                localization::loss_rate[localization_language_index_].c_str());
+
+    ImGui::TableNextRow();
+    ImGui::TableNextColumn();
+    ImGui::Text("%s",
+                localization::video[localization_language_index_].c_str());
+    ImGui::TableNextColumn();
+    BitrateDisplay((int)net_traffic_stats_.video_inbound_stats.bitrate);
+    ImGui::TableNextColumn();
+    BitrateDisplay((int)net_traffic_stats_.video_outbound_stats.bitrate);
+    ImGui::TableNextColumn();
+    LossRateDisplay(net_traffic_stats_.video_inbound_stats.loss_rate);
+
+    ImGui::TableNextRow();
+    ImGui::TableNextColumn();
+    ImGui::Text("%s",
+                localization::audio[localization_language_index_].c_str());
+    ImGui::TableNextColumn();
+    BitrateDisplay((int)net_traffic_stats_.audio_inbound_stats.bitrate);
+    ImGui::TableNextColumn();
+    BitrateDisplay((int)net_traffic_stats_.audio_outbound_stats.bitrate);
+    ImGui::TableNextColumn();
+    LossRateDisplay(net_traffic_stats_.audio_inbound_stats.loss_rate);
+
+    ImGui::TableNextRow();
+    ImGui::TableNextColumn();
+    ImGui::Text("%s", localization::data[localization_language_index_].c_str());
+    ImGui::TableNextColumn();
+    BitrateDisplay((int)net_traffic_stats_.data_inbound_stats.bitrate);
+    ImGui::TableNextColumn();
+    BitrateDisplay((int)net_traffic_stats_.data_outbound_stats.bitrate);
+    ImGui::TableNextColumn();
+    LossRateDisplay(net_traffic_stats_.data_inbound_stats.loss_rate);
+
+    ImGui::TableNextRow();
+    ImGui::TableNextColumn();
+    ImGui::Text("%s",
+                localization::total[localization_language_index_].c_str());
+    ImGui::TableNextColumn();
+    BitrateDisplay((int)net_traffic_stats_.total_inbound_stats.bitrate);
+    ImGui::TableNextColumn();
+    BitrateDisplay((int)net_traffic_stats_.total_outbound_stats.bitrate);
+    ImGui::TableNextColumn();
+    LossRateDisplay(net_traffic_stats_.total_inbound_stats.loss_rate);
+
+    ImGui::EndTable();
+  }
+
+  return 0;
+}

src/single_window/control_window.cpp

@@ -0,0 +1,230 @@
+#include "rd_log.h"
+#include "render.h"
+
+int Render::ControlWindow() {
+  double time_duration = ImGui::GetTime() - control_bar_button_pressed_time_;
+  if (control_window_width_is_changing_) {
+    if (control_bar_expand_) {
+      control_window_width_ =
+          (float)(control_window_min_width_ +
+                  (control_window_max_width_ - control_window_min_width_) * 4 *
+                      time_duration);
+    } else {
+      control_window_width_ =
+          (float)(control_window_max_width_ -
+                  (control_window_max_width_ - control_window_min_width_) * 4 *
+                      time_duration);
+    }
+  }
+
+  time_duration = ImGui::GetTime() - net_traffic_stats_button_pressed_time_;
+  if (control_window_height_is_changing_) {
+    if (control_bar_expand_ && net_traffic_stats_button_pressed_) {
+      control_window_height_ =
+          (float)(control_window_min_height_ +
+                  (control_window_max_height_ - control_window_min_height_) *
+                      4 * time_duration);
+    } else if (control_bar_expand_ && !net_traffic_stats_button_pressed_) {
+      control_window_height_ =
+          (float)(control_window_max_height_ -
+                  (control_window_max_height_ - control_window_min_height_) *
+                      4 * time_duration);
+    }
+  }
+
+  ImGui::PushStyleColor(ImGuiCol_WindowBg, ImVec4(1, 1, 1, 1));
+  ImGui::PushStyleVar(ImGuiStyleVar_WindowMinSize, ImVec2(0, 0));
+  ImGui::PushStyleVar(ImGuiStyleVar_WindowRounding, 10.0f);
+  ImGui::PushStyleVar(ImGuiStyleVar_WindowBorderSize, 0);
+  ImGui::PushStyleVar(ImGuiStyleVar_ChildRounding, 10.0f);
+  ImGui::PushStyleVar(ImGuiStyleVar_WindowPadding, ImVec2(0, 0));
+
+  ImGui::SetNextWindowSize(
+      ImVec2(control_window_width_, control_window_height_), ImGuiCond_Always);
+
+  if (0 == control_winodw_pos_.x && 0 == control_winodw_pos_.y) {
+    ImGui::SetNextWindowPos(ImVec2(0, title_bar_height_ + 1), ImGuiCond_Once);
+  }
+
+  if (reset_control_bar_pos_) {
+    float new_control_window_pos_x, new_control_window_pos_y, new_cursor_pos_x,
+        new_cursor_pos_y;
+
+    // set control window pos
+    new_control_window_pos_x = control_winodw_pos_.x;
+    if (control_winodw_pos_.y < stream_render_rect_last_.y) {
+      new_control_window_pos_y =
+          stream_render_rect_.y -
+          (stream_render_rect_last_.y - control_winodw_pos_.y);
+      if (fullscreen_button_pressed_ && new_control_window_pos_y < 0) {
+        new_control_window_pos_y = 0;
+      } else if (!fullscreen_button_pressed_ &&
+                 new_control_window_pos_y < (title_bar_height_ + 1)) {
+        new_control_window_pos_y = title_bar_height_ + 1;
+      }
+    } else if (control_winodw_pos_.y + control_window_height_ >
+               stream_render_rect_last_.y + stream_render_rect_last_.h) {
+      new_control_window_pos_y =
+          stream_render_rect_.y + stream_render_rect_.h +
+          (control_winodw_pos_.y - stream_render_rect_last_.y -
+           stream_render_rect_last_.h);
+      if (new_control_window_pos_y >
+          stream_window_height_ - control_window_height_) {
+        new_control_window_pos_y =
+            stream_window_height_ - control_window_height_;
+      }
+    } else if (control_winodw_pos_.y + control_window_height_ ==
+               stream_render_rect_last_.y + stream_render_rect_last_.h) {
+      new_control_window_pos_y = stream_render_rect_.y + stream_render_rect_.h -
+                                 control_window_height_;
+    } else {
+      new_control_window_pos_y =
+          (control_winodw_pos_.y - stream_render_rect_last_.y) /
+              (float)(stream_render_rect_last_.h) * stream_render_rect_.h +
+          stream_render_rect_.y;
+    }
+
+    ImGui::SetNextWindowPos(
+        ImVec2(new_control_window_pos_x, new_control_window_pos_y),
+        ImGuiCond_Always);
+
+    if (0 != mouse_diff_control_bar_pos_x_ &&
+        0 != mouse_diff_control_bar_pos_y_) {
+      // set cursor pos
+      new_cursor_pos_x =
+          new_control_window_pos_x + mouse_diff_control_bar_pos_x_;
+      new_cursor_pos_y =
+          new_control_window_pos_y + mouse_diff_control_bar_pos_y_;
+
+      SDL_WarpMouseInWindow(stream_window_, (int)new_cursor_pos_x,
+                            (int)new_cursor_pos_y);
+    }
+    reset_control_bar_pos_ = false;
+  } else if (!reset_control_bar_pos_ &&
+                 ImGui::IsMouseReleased(ImGuiPopupFlags_MouseButtonLeft) ||
+             control_window_width_is_changing_) {
+    if (control_winodw_pos_.x <= stream_window_width_ / 2) {
+      float pos_x = 0;
+      float pos_y =
+          (control_winodw_pos_.y >=
+               (fullscreen_button_pressed_ ? 0 : (title_bar_height_ + 1)) &&
+           control_winodw_pos_.y <=
+               stream_window_height_ - control_window_height_)
+              ? control_winodw_pos_.y
+              : (control_winodw_pos_.y < (fullscreen_button_pressed_
+                                              ? 0
+                                              : (title_bar_height_ + 1))
+                     ? (fullscreen_button_pressed_ ? 0
+                                                   : (title_bar_height_ + 1))
+                     : (stream_window_height_ - control_window_height_));
+
+      if (control_bar_expand_) {
+        if (control_window_width_ >= control_window_max_width_) {
+          control_window_width_ = control_window_max_width_;
+          control_window_width_is_changing_ = false;
+        } else {
+          control_window_width_is_changing_ = true;
+        }
+      } else {
+        if (control_window_width_ <= control_window_min_width_) {
+          control_window_width_ = control_window_min_width_;
+          control_window_width_is_changing_ = false;
+        } else {
+          control_window_width_is_changing_ = true;
+        }
+      }
+      ImGui::SetNextWindowPos(ImVec2(pos_x, pos_y), ImGuiCond_Always);
+      is_control_bar_in_left_ = true;
+    } else if (control_winodw_pos_.x > stream_window_width_ / 2) {
+      float pos_x = 0;
+      float pos_y =
+          (control_winodw_pos_.y >=
+               (fullscreen_button_pressed_ ? 0 : (title_bar_height_ + 1)) &&
+           control_winodw_pos_.y <=
+               stream_window_height_ - control_window_height_)
+              ? control_winodw_pos_.y
+              : (control_winodw_pos_.y < (fullscreen_button_pressed_
+                                              ? 0
+                                              : (title_bar_height_ + 1))
+                     ? (fullscreen_button_pressed_ ? 0
+                                                   : (title_bar_height_ + 1))
+                     : (stream_window_height_ - control_window_height_));
+
+      if (control_bar_expand_) {
+        if (control_window_width_ >= control_window_max_width_) {
+          control_window_width_ = control_window_max_width_;
+          control_window_width_is_changing_ = false;
+          pos_x = stream_window_width_ - control_window_max_width_;
+        } else {
+          control_window_width_is_changing_ = true;
+          pos_x = stream_window_width_ - control_window_width_;
+        }
+      } else {
+        if (control_window_width_ <= control_window_min_width_) {
+          control_window_width_ = control_window_min_width_;
+          control_window_width_is_changing_ = false;
+          pos_x = stream_window_width_ - control_window_min_width_;
+        } else {
+          control_window_width_is_changing_ = true;
+          pos_x = stream_window_width_ - control_window_width_;
+        }
+      }
+      ImGui::SetNextWindowPos(ImVec2(pos_x, pos_y), ImGuiCond_Always);
+      is_control_bar_in_left_ = false;
+    }
+  }
+
+  if (control_bar_expand_ && control_window_height_is_changing_) {
+    if (net_traffic_stats_button_pressed_) {
+      if (control_window_height_ >= control_window_max_height_) {
+        control_window_height_ = control_window_max_height_;
+        control_window_height_is_changing_ = false;
+      } else {
+        control_window_height_is_changing_ = true;
+      }
+    } else {
+      if (control_window_height_ <= control_window_min_height_) {
+        control_window_height_ = control_window_min_height_;
+        control_window_height_is_changing_ = false;
+      } else {
+        control_window_height_is_changing_ = true;
+      }
+    }
+  }
+
+  ImGui::Begin("ControlWindow", nullptr,
+               ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoResize |
+                   ImGuiWindowFlags_NoScrollbar);
+  ImGui::PopStyleVar();
+
+  control_winodw_pos_ = ImGui::GetWindowPos();
+  SDL_GetMouseState(&mouse_pos_x_, &mouse_pos_y_);
+  mouse_diff_control_bar_pos_x_ = mouse_pos_x_ - control_winodw_pos_.x;
+  mouse_diff_control_bar_pos_y_ = mouse_pos_y_ - control_winodw_pos_.y;
+
+  ImGui::PushStyleColor(ImGuiCol_ChildBg, ImVec4(1.0f, 1.0f, 1.0f, 1.0f));
+  static bool a, b, c, d, e;
+  ImGui::SetNextWindowPos(
+      ImVec2(is_control_bar_in_left_
+                 ? control_winodw_pos_.x - control_window_width_
+                 : control_winodw_pos_.x,
+             control_winodw_pos_.y),
+      ImGuiCond_Always);
+  ImGui::SetWindowFontScale(0.5f);
+
+  ImGui::BeginChild("ControlBar",
+                    ImVec2(control_window_width_ * 2, control_window_height_),
+                    ImGuiChildFlags_Border, ImGuiWindowFlags_NoDecoration);
+  ImGui::SetWindowFontScale(1.0f);
+  ImGui::PopStyleColor();
+
+  ControlBar();
+  control_bar_hovered_ = ImGui::IsWindowHovered();
+
+  ImGui::EndChild();
+  ImGui::End();
+  ImGui::PopStyleVar(4);
+  ImGui::PopStyleColor();
+
+  return 0;
+}

src/single_window/layout_style.h

@@ -0,0 +1,39 @@
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2024-06-14
+ * Copyright (c) 2024 by DI JUNKUN, All Rights Reserved.
+ */
+
+#ifndef _LAYOUT_STYLE_H_
+#define _LAYOUT_STYLE_H_
+
+#define MENU_WINDOW_WIDTH_CN 300
+#define MENU_WINDOW_HEIGHT_CN 280
+#define LOCAL_WINDOW_WIDTH_CN 300
+#define LOCAL_WINDOW_HEIGHT_CN 280
+#define REMOTE_WINDOW_WIDTH_CN 300
+#define REMOTE_WINDOW_HEIGHT_CN 280
+#define MENU_WINDOW_WIDTH_EN 190
+#define MENU_WINDOW_HEIGHT_EN 245
+#define IPUT_WINDOW_WIDTH 160
+#define INPUT_WINDOW_PADDING_CN 66
+#define INPUT_WINDOW_PADDING_EN 96
+#define SETTINGS_WINDOW_WIDTH_CN 181
+#define SETTINGS_WINDOW_WIDTH_EN 228
+#define SETTINGS_WINDOW_HEIGHT_CN 220
+#define SETTINGS_WINDOW_HEIGHT_EN 220
+#define LANGUAGE_SELECT_WINDOW_PADDING_CN 100
+#define LANGUAGE_SELECT_WINDOW_PADDING_EN 147
+#define VIDEO_QUALITY_SELECT_WINDOW_PADDING_CN 100
+#define VIDEO_QUALITY_SELECT_WINDOW_PADDING_EN 147
+#define VIDEO_ENCODE_FORMAT_SELECT_WINDOW_PADDING_CN 100
+#define VIDEO_ENCODE_FORMAT_SELECT_WINDOW_PADDING_EN 147
+#define ENABLE_HARDWARE_VIDEO_CODEC_CHECKBOX_PADDING_CN 151
+#define ENABLE_HARDWARE_VIDEO_CODEC_CHECKBOX_PADDING_EN 198
+#define ENABLE_TURN_CHECKBOX_PADDING_CN 151
+#define ENABLE_TURN_CHECKBOX_PADDING_EN 198
+#define SETTINGS_SELECT_WINDOW_WIDTH 73
+#define SETTINGS_OK_BUTTON_PADDING_CN 55
+#define SETTINGS_OK_BUTTON_PADDING_EN 78
+
+#endif

src/single_window/local_peer_window.cpp

@@ -0,0 +1,317 @@
+#include <random>
+
+#include "layout_style.h"
+#include "localization.h"
+#include "rd_log.h"
+#include "render.h"
+
+int Render::LocalWindow() {
+  ImGui::SetNextWindowPos(ImVec2(-1.0f, title_bar_height_), ImGuiCond_Always);
+  ImGui::PushStyleVar(ImGuiStyleVar_FrameRounding, 3.0f);
+
+  ImGui::PushStyleColor(ImGuiCol_ChildBg, ImVec4(1.0f, 1.0f, 1.0f, 1.0f));
+  ImGui::BeginChild("LocalDesktopWindow",
+                    ImVec2(local_window_width_, local_window_height_),
+                    ImGuiChildFlags_None,
+                    ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoCollapse |
+                        ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoTitleBar |
+                        ImGuiWindowFlags_NoBringToFrontOnFocus);
+  ImGui::PopStyleColor();
+
+  ImGui::SetCursorPosY(ImGui::GetCursorPosY() + main_window_text_y_padding_);
+  ImGui::Indent(main_child_window_x_padding_);
+
+  ImGui::TextColored(
+      ImVec4(0.0f, 0.0f, 0.0f, 0.5f), "%s",
+      localization::local_desktop[localization_language_index_].c_str());
+
+  ImGui::Spacing();
+  {
+    ImGui::SetNextWindowPos(
+        ImVec2(main_child_window_x_padding_,
+               title_bar_height_ + main_child_window_y_padding_),
+        ImGuiCond_Always);
+    ImGui::PushStyleColor(ImGuiCol_ChildBg, ImVec4(239.0f / 255, 240.0f / 255,
+                                                   242.0f / 255, 1.0f));
+    ImGui::PushStyleVar(ImGuiStyleVar_ChildRounding, 10.0f);
+    ImGui::BeginChild(
+        "LocalDesktopWindow_1",
+        ImVec2(local_child_window_width_, local_child_window_height_),
+        ImGuiChildFlags_Border,
+        ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoCollapse |
+            ImGuiWindowFlags_NoTitleBar |
+            ImGuiWindowFlags_NoBringToFrontOnFocus);
+    ImGui::PopStyleVar();
+    ImGui::PopStyleColor();
+    {
+      ImGui::SetWindowFontScale(0.8f);
+      ImGui::Text("%s",
+                  localization::local_id[localization_language_index_].c_str());
+
+      ImGui::Spacing();
+
+      ImGui::SetNextItemWidth(IPUT_WINDOW_WIDTH);
+      ImGui::SetWindowFontScale(1.0f);
+      ImGui::PushStyleVar(ImGuiStyleVar_FrameBorderSize, 1.0f);
+
+      if (strcmp(client_id_display_, client_id_)) {
+        for (int i = 0, j = 0; i < sizeof(client_id_); i++, j++) {
+          client_id_display_[j] = client_id_[i];
+          if (i == 2 || i == 5) {
+            client_id_display_[++j] = ' ';
+          }
+        }
+      }
+
+      ImGui::InputText(
+          "##local_id", client_id_display_, IM_ARRAYSIZE(client_id_display_),
+          ImGuiInputTextFlags_CharsUppercase | ImGuiInputTextFlags_ReadOnly);
+      ImGui::PopStyleVar();
+
+      ImGui::SameLine();
+
+      ImGui::PushStyleColor(ImGuiCol_Button, ImVec4(0, 0, 0, 0));
+      ImGui::PushStyleColor(ImGuiCol_ButtonHovered, ImVec4(0, 0, 0, 0));
+      ImGui::PushStyleColor(ImGuiCol_ButtonActive, ImVec4(0, 0, 0, 0));
+      ImGui::SetWindowFontScale(0.5f);
+      if (ImGui::Button(ICON_FA_COPY, ImVec2(35, 38))) {
+        local_id_copied_ = true;
+        ImGui::SetClipboardText(client_id_);
+        copy_start_time_ = ImGui::GetTime();
+      }
+      ImGui::SetWindowFontScale(1.0f);
+      ImGui::PopStyleColor(3);
+
+      double time_duration = ImGui::GetTime() - copy_start_time_;
+      if (local_id_copied_ && time_duration < 1.0f) {
+        const ImGuiViewport *viewport = ImGui::GetMainViewport();
+        ImGui::SetNextWindowPos(
+            ImVec2((viewport->WorkSize.x - viewport->WorkPos.x -
+                    notification_window_width_) /
+                       2,
+                   (viewport->WorkSize.y - viewport->WorkPos.y -
+                    notification_window_height_) /
+                       2));
+
+        ImGui::SetNextWindowSize(
+            ImVec2(notification_window_width_, notification_window_height_));
+        ImGui::PushStyleColor(
+            ImGuiCol_WindowBg,
+            ImVec4(1.0f, 1.0f, 1.0f, 1.0f - (float)time_duration));
+        ImGui::PushStyleVar(ImGuiStyleVar_WindowBorderSize, 0.0f);
+        ImGui::PushStyleVar(ImGuiStyleVar_WindowRounding, 5.0f);
+        ImGui::Begin("ConnectionStatusWindow", nullptr,
+                     ImGuiWindowFlags_NoDecoration | ImGuiWindowFlags_NoMove |
+                         ImGuiWindowFlags_NoSavedSettings);
+        ImGui::PopStyleVar(2);
+        ImGui::PopStyleColor();
+
+        auto window_width = ImGui::GetWindowSize().x;
+        auto window_height = ImGui::GetWindowSize().y;
+        ImGui::SetWindowFontScale(0.8f);
+        std::string text = localization::local_id_copied_to_clipboard
+            [localization_language_index_];
+        auto text_width = ImGui::CalcTextSize(text.c_str()).x;
+        ImGui::SetCursorPosX((window_width - text_width) * 0.5f);
+        ImGui::SetCursorPosY(window_height * 0.5f);
+        ImGui::PushStyleColor(ImGuiCol_Text,
+                              ImVec4(0, 0, 0, 1.0f - (float)time_duration));
+        ImGui::Text("%s", text.c_str());
+        ImGui::PopStyleColor();
+        ImGui::SetWindowFontScale(1.0f);
+
+        ImGui::End();
+      }
+
+      ImGui::Spacing();
+      ImGui::Separator();
+      ImGui::Spacing();
+
+      ImGui::SetWindowFontScale(0.8f);
+      ImGui::Text("%s",
+                  localization::password[localization_language_index_].c_str());
+      ImGui::SetWindowFontScale(1.0f);
+
+      ImGui::SetNextItemWidth(IPUT_WINDOW_WIDTH);
+      ImGui::Spacing();
+
+      if (!password_inited_) {
+        char a[] = {
+            "123456789QWERTYUPASDFGHJKLZXCVBNMqwertyupasdfghijkzxcvbnm"};
+        std::mt19937 generator((unsigned int)std::chrono::system_clock::now()
+                                   .time_since_epoch()
+                                   .count());
+        std::uniform_int_distribution<int> distribution(0,
+                                                        (int)(strlen(a) - 1));
+
+        random_password_.clear();
+        for (int i = 0; i < 6; i++) {
+          random_password_ += a[distribution(generator)];
+        }
+        password_inited_ = true;
+        if (0 != strcmp(random_password_.c_str(), password_saved_)) {
+          memcpy(password_saved_, random_password_.c_str(),
+                 sizeof(password_saved_));
+          LOG_INFO("Generate new password and save into cache file");
+          SaveSettingsIntoCacheFile();
+        }
+      }
+
+      ImGui::PushStyleVar(ImGuiStyleVar_FrameBorderSize, 1.0f);
+      ImGui::InputTextWithHint(
+          "##server_pwd",
+          localization::max_password_len[localization_language_index_].c_str(),
+          password_saved_, IM_ARRAYSIZE(password_saved_),
+          show_password_
+              ? ImGuiInputTextFlags_CharsNoBlank | ImGuiInputTextFlags_ReadOnly
+              : ImGuiInputTextFlags_CharsNoBlank |
+                    ImGuiInputTextFlags_Password |
+                    ImGuiInputTextFlags_ReadOnly);
+      ImGui::PopStyleVar();
+
+      ImGui::SameLine();
+      ImGui::PushStyleColor(ImGuiCol_Button, ImVec4(0, 0, 0, 0));
+      ImGui::PushStyleColor(ImGuiCol_ButtonHovered, ImVec4(0, 0, 0, 0));
+      ImGui::PushStyleColor(ImGuiCol_ButtonActive, ImVec4(0, 0, 0, 0));
+      ImGui::SetWindowFontScale(0.5f);
+      auto l_x = ImGui::GetCursorScreenPos().x;
+      auto l_y = ImGui::GetCursorScreenPos().y;
+      if (ImGui::Button(ICON_FA_EYE, ImVec2(22, 38))) {
+        show_password_ = !show_password_;
+      }
+
+      if (!show_password_) {
+        ImDrawList *draw_list = ImGui::GetWindowDrawList();
+        draw_list->AddLine(ImVec2(l_x + 3.0f, l_y + 12.5f),
+                           ImVec2(l_x + 20.3f, l_y + 26.5f),
+                           IM_COL32(239, 240, 242, 255), 2.0f);
+        draw_list->AddLine(ImVec2(l_x + 3.0f, l_y + 11.0f),
+                           ImVec2(l_x + 20.3f, l_y + 25.0f),
+                           IM_COL32(0, 0, 0, 255), 1.5f);
+      }
+
+      ImGui::SameLine();
+
+      if (ImGui::Button(
+              regenerate_password_ ? ICON_FA_SPINNER : ICON_FA_ARROWS_ROTATE,
+              ImVec2(22, 38))) {
+        regenerate_password_ = true;
+        password_inited_ = false;
+        regenerate_password_start_time_ = ImGui::GetTime();
+        LeaveConnection(peer_, client_id_);
+        is_create_connection_ = false;
+      }
+      if (ImGui::GetTime() - regenerate_password_start_time_ > 0.3f) {
+        regenerate_password_ = false;
+      }
+
+      ImGui::SameLine();
+
+      if (ImGui::Button(ICON_FA_PEN, ImVec2(22, 38))) {
+        show_reset_password_window_ = true;
+      }
+      ImGui::SetWindowFontScale(1.0f);
+      ImGui::PopStyleColor(3);
+
+      if (show_reset_password_window_) {
+        const ImGuiViewport *viewport = ImGui::GetMainViewport();
+
+        ImGui::SetNextWindowPos(
+            ImVec2((viewport->WorkSize.x - viewport->WorkPos.x -
+                    connection_status_window_width_) /
+                       2,
+                   (viewport->WorkSize.y - viewport->WorkPos.y -
+                    connection_status_window_height_) /
+                       2));
+
+        ImGui::SetNextWindowSize(ImVec2(connection_status_window_width_,
+                                        connection_status_window_height_));
+
+        ImGui::PushStyleVar(ImGuiStyleVar_FrameRounding, 3.0f);
+
+        ImGui::PushStyleColor(ImGuiCol_WindowBg, ImVec4(1.0, 1.0, 1.0, 1.0));
+        ImGui::PushStyleVar(ImGuiStyleVar_WindowBorderSize, 1.0f);
+        ImGui::PushStyleVar(ImGuiStyleVar_WindowRounding, 5.0f);
+
+        ImGui::Begin("ResetPasswordWindow", nullptr,
+                     ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoCollapse |
+                         ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoTitleBar |
+                         ImGuiWindowFlags_NoSavedSettings);
+        ImGui::PopStyleVar(2);
+        ImGui::PopStyleColor();
+
+        auto window_width = ImGui::GetWindowSize().x;
+        auto window_height = ImGui::GetWindowSize().y;
+        std::string text =
+            localization::new_password[localization_language_index_];
+        ImGui::SetWindowFontScale(0.5f);
+        auto text_width = ImGui::CalcTextSize(text.c_str()).x;
+        ImGui::SetCursorPosX((window_width - text_width) * 0.5f);
+        ImGui::SetCursorPosY(window_height * 0.2f);
+        ImGui::Text("%s", text.c_str());
+
+        ImGui::SetCursorPosX((window_width - IPUT_WINDOW_WIDTH / 2) * 0.5f);
+        ImGui::SetCursorPosY(window_height * 0.4f);
+        ImGui::SetNextItemWidth(IPUT_WINDOW_WIDTH / 2);
+
+        ImGui::PushStyleVar(ImGuiStyleVar_FrameBorderSize, 1.0f);
+
+        if (focus_on_input_widget_) {
+          ImGui::SetKeyboardFocusHere();
+          focus_on_input_widget_ = false;
+        }
+
+        bool enter_pressed = ImGui::InputText(
+            "##new_password", new_password_, IM_ARRAYSIZE(new_password_),
+            ImGuiInputTextFlags_CharsNoBlank |
+                ImGuiInputTextFlags_EnterReturnsTrue);
+
+        ImGui::PopStyleVar();
+
+        ImGui::SetCursorPosX(window_width * 0.315f);
+        ImGui::SetCursorPosY(window_height * 0.75f);
+
+        // OK
+        if (ImGui::Button(
+                localization::ok[localization_language_index_].c_str()) ||
+            enter_pressed) {
+          if (6 != strlen(new_password_)) {
+            LOG_ERROR("Invalid password length");
+            show_reset_password_window_ = true;
+            focus_on_input_widget_ = true;
+          } else {
+            show_reset_password_window_ = false;
+            LOG_INFO("Generate new password and save into cache file");
+            memcpy(password_saved_, new_password_, sizeof(password_saved_));
+            memset(new_password_, 0, sizeof(new_password_));
+            SaveSettingsIntoCacheFile();
+            LeaveConnection(peer_, client_id_);
+            is_create_connection_ = false;
+            focus_on_input_widget_ = true;
+          }
+        }
+
+        ImGui::SameLine();
+
+        if (ImGui::Button(
+                localization::cancel[localization_language_index_].c_str())) {
+          show_reset_password_window_ = false;
+          focus_on_input_widget_ = true;
+          memset(new_password_, 0, sizeof(new_password_));
+        }
+
+        ImGui::SetWindowFontScale(1.0f);
+
+        ImGui::End();
+        ImGui::PopStyleVar();
+      }
+    }
+
+    ImGui::EndChild();
+  }
+
+  ImGui::EndChild();
+  ImGui::PopStyleVar();
+
+  return 0;
+}

src/single_window/main_window.cpp

@@ -0,0 +1,34 @@
+#include "localization.h"
+#include "rd_log.h"
+#include "render.h"
+
+int Render::MainWindow() {
+  ImGui::SetNextWindowPos(ImVec2(0, title_bar_height_), ImGuiCond_Always);
+  ImGui::PushStyleVar(ImGuiStyleVar_WindowPadding, ImVec2(0.0f, 0.0f));
+  ImGui::PushStyleColor(ImGuiCol_ChildBg, ImVec4(1.0f, 1.0f, 1.0f, 1.0f));
+  ImGui::BeginChild("DeskWindow",
+                    ImVec2(main_window_width_default_, local_window_height_),
+                    ImGuiChildFlags_Border,
+                    ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoCollapse |
+                        ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoTitleBar |
+                        ImGuiWindowFlags_NoBringToFrontOnFocus);
+  ImGui::PopStyleVar();
+  ImGui::PopStyleColor();
+
+  LocalWindow();
+
+  ImDrawList* draw_list = ImGui::GetWindowDrawList();
+  draw_list->AddLine(
+      ImVec2(main_window_width_default_ / 2, title_bar_height_ + 15.0f),
+      ImVec2(main_window_width_default_ / 2, title_bar_height_ + 225.0f),
+      IM_COL32(0, 0, 0, 122), 1.0f);
+
+  RemoteWindow();
+  ImGui::EndChild();
+
+  RecentConnectionsWindow();
+  StatusBar();
+  ConnectionStatusWindow();
+
+  return 0;
+}

src/single_window/recent_connections.cpp

@@ -0,0 +1,273 @@
+#include "localization.h"
+#include "rd_log.h"
+#include "render.h"
+
+int Render::RecentConnectionsWindow() {
+  ImGui::SetNextWindowPos(
+      ImVec2(0, title_bar_height_ + local_window_height_ - 1.0f),
+      ImGuiCond_Always);
+  ImGui::PushStyleVar(ImGuiStyleVar_WindowPadding, ImVec2(0.0f, 0.0f));
+  ImGui::PushStyleColor(ImGuiCol_ChildBg, ImVec4(1.0f, 1.0f, 1.0f, 1.0f));
+  ImGui::BeginChild(
+      "RecentConnectionsWindow",
+      ImVec2(main_window_width_default_,
+             main_window_height_default_ - title_bar_height_ -
+                 local_window_height_ - status_bar_height_ + 1.0f),
+      ImGuiChildFlags_Border,
+      ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoCollapse |
+          ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoTitleBar |
+          ImGuiWindowFlags_NoBringToFrontOnFocus);
+  ImGui::PopStyleVar();
+  ImGui::PopStyleColor();
+
+  ImGui::SetCursorPosY(ImGui::GetCursorPosY() + main_window_text_y_padding_);
+  ImGui::Indent(main_child_window_x_padding_);
+
+  ImGui::TextColored(
+      ImVec4(0.0f, 0.0f, 0.0f, 0.5f), "%s",
+      localization::recent_connections[localization_language_index_].c_str());
+
+  ShowRecentConnections();
+
+  ImGui::EndChild();
+
+  return 0;
+}
+
+int Render::ShowRecentConnections() {
+  ImGui::SetCursorPosX(25.0f);
+  ImVec2 sub_window_pos = ImGui::GetCursorPos();
+  std::map<std::string, ImVec2> sub_containers_pos;
+  float recent_connection_sub_container_width =
+      recent_connection_image_width_ + 16.0f;
+  float recent_connection_sub_container_height =
+      recent_connection_image_height_ + 36.0f;
+  ImGui::PushStyleColor(ImGuiCol_ChildBg,
+                        ImVec4(239.0f / 255, 240.0f / 255, 242.0f / 255, 1.0f));
+  ImGui::PushStyleVar(ImGuiStyleVar_ChildRounding, 10.0f);
+  ImGui::BeginChild("RecentConnectionsContainer",
+                    ImVec2(main_window_width_default_ - 50.0f, 145.0f),
+                    ImGuiChildFlags_Border,
+                    ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoCollapse |
+                        ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoTitleBar |
+                        ImGuiWindowFlags_NoBringToFrontOnFocus |
+                        ImGuiWindowFlags_AlwaysHorizontalScrollbar |
+                        ImGuiWindowFlags_NoScrollbar |
+                        ImGuiWindowFlags_NoScrollWithMouse);
+  ImGui::PopStyleVar();
+  ImGui::PopStyleColor();
+  size_t recent_connections_count = recent_connection_textures_.size();
+  int count = 0;
+  float button_width = 22;
+  float button_height = 22;
+  for (auto it = recent_connection_textures_.begin();
+       it != recent_connection_textures_.end(); ++it) {
+    sub_containers_pos[it->first] = ImGui::GetCursorPos();
+    std::string recent_connection_sub_window_name =
+        "RecentConnectionsSubContainer" + it->first;
+    // recent connections sub container
+
+    ImGui::BeginChild(recent_connection_sub_window_name.c_str(),
+                      ImVec2(recent_connection_sub_container_width,
+                             recent_connection_sub_container_height),
+                      ImGuiChildFlags_None,
+                      ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoCollapse |
+                          ImGuiWindowFlags_NoMove |
+                          ImGuiWindowFlags_NoTitleBar |
+                          ImGuiWindowFlags_NoBringToFrontOnFocus |
+                          ImGuiWindowFlags_NoScrollbar);
+    std::string connection_info = it->first;
+    std::string remote_id;
+    std::string password;
+    std::string host_name;
+
+    // remote id length is 9
+    // password length is 6
+    // connection_info -> remote_id + 'Y' + password + host_name
+    //                 -> remote_id + 'N' + host_name
+    if ('Y' == connection_info[9] && connection_info.size() >= 16) {
+      remote_id = connection_info.substr(0, 9);
+      password = connection_info.substr(10, 6);
+      host_name = connection_info.substr(16);
+    } else if ('N' == connection_info[9] && connection_info.size() >= 10) {
+      remote_id = connection_info.substr(0, 9);
+      host_name = connection_info.substr(10);
+    } else {
+      host_name = "unknown";
+    }
+
+    ImVec2 image_screen_pos = ImVec2(ImGui::GetCursorScreenPos().x + 5.0f,
+                                     ImGui::GetCursorScreenPos().y + 5.0f);
+    ImVec2 image_pos =
+        ImVec2(ImGui::GetCursorPosX() + 5.0f, ImGui::GetCursorPosY() + 5.0f);
+    ImGui::SetCursorPos(image_pos);
+    ImGui::Image((ImTextureID)(intptr_t)it->second,
+                 ImVec2((float)recent_connection_image_width_,
+                        (float)recent_connection_image_height_));
+
+    // remote id display button
+    {
+      ImGui::PushStyleColor(ImGuiCol_Button, ImVec4(0, 0, 0, 0.2f));
+      ImGui::PushStyleColor(ImGuiCol_ButtonHovered, ImVec4(0, 0, 0, 0.2f));
+      ImGui::PushStyleColor(ImGuiCol_ButtonActive, ImVec4(0, 0, 0, 0.2f));
+
+      ImVec2 dummy_button_pos =
+          ImVec2(image_pos.x, image_pos.y + recent_connection_image_height_);
+      std::string dummy_button_name = "##DummyButton" + remote_id;
+      ImGui::SetCursorPos(dummy_button_pos);
+      ImGui::SetWindowFontScale(0.6f);
+      ImGui::Button(dummy_button_name.c_str(),
+                    ImVec2(recent_connection_image_width_ - 2 * button_width,
+                           button_height));
+      ImGui::SetWindowFontScale(1.0f);
+      ImGui::SetCursorPos(
+          ImVec2(dummy_button_pos.x + 2.0f, dummy_button_pos.y + 1.0f));
+      ImGui::SetWindowFontScale(0.65f);
+      ImGui::Text("%s", remote_id.c_str());
+      ImGui::SetWindowFontScale(1.0f);
+      ImGui::PopStyleColor(3);
+
+      if (ImGui::IsItemHovered()) {
+        ImGui::BeginTooltip();
+        ImGui::SetWindowFontScale(0.5f);
+        ImGui::Text("%s", host_name.c_str());
+        ImGui::SetWindowFontScale(1.0f);
+        ImGui::EndTooltip();
+      }
+    }
+
+    ImGui::PushStyleColor(ImGuiCol_Button, ImVec4(0, 0, 0, 0.2f));
+    ImGui::PushStyleColor(ImGuiCol_ButtonHovered,
+                          ImVec4(0.1f, 0.4f, 0.8f, 1.0f));
+    ImGui::PushStyleColor(ImGuiCol_ButtonActive,
+                          ImVec4(1.0f, 1.0f, 1.0f, 0.7f));
+    ImGui::SetWindowFontScale(0.5f);
+    // trash button
+    {
+      ImVec2 trash_can_button_pos = ImVec2(
+          image_pos.x + recent_connection_image_width_ - 2 * button_width,
+          image_pos.y + recent_connection_image_height_);
+      ImGui::SetCursorPos(trash_can_button_pos);
+      std::string trash_can = ICON_FA_TRASH_CAN;
+      std::string recent_connection_delete_button_name =
+          trash_can + "##RecentConnectionDelete" +
+          std::to_string(trash_can_button_pos.x);
+      if (ImGui::Button(recent_connection_delete_button_name.c_str(),
+                        ImVec2(button_width, button_height))) {
+        show_confirm_delete_connection_ = true;
+      }
+
+      if (delete_connection_) {
+        if (!thumbnail_->DeleteThumbnail(it->first)) {
+          reload_recent_connections_ = true;
+          delete_connection_ = false;
+        }
+      }
+    }
+
+    // connect button
+    {
+      ImVec2 connect_button_pos =
+          ImVec2(image_pos.x + recent_connection_image_width_ - button_width,
+                 image_pos.y + recent_connection_image_height_);
+      ImGui::SetCursorPos(connect_button_pos);
+      std::string connect = ICON_FA_ARROW_RIGHT_LONG;
+      std::string connect_to_this_connection_button_name =
+          connect + "##ConnectionTo" + it->first;
+      if (ImGui::Button(connect_to_this_connection_button_name.c_str(),
+                        ImVec2(button_width, button_height))) {
+        remote_id_ = remote_id;
+        if (!password.empty() && password.size() == 6) {
+          remember_password_ = true;
+        }
+        memcpy(remote_password_, password.c_str(), 6);
+        ConnectTo();
+      }
+    }
+    ImGui::SetWindowFontScale(1.0f);
+    ImGui::PopStyleColor(3);
+
+    ImGui::EndChild();
+
+    if (count != recent_connections_count - 1) {
+      ImVec2 line_start =
+          ImVec2(image_screen_pos.x + recent_connection_image_width_ + 20.0f,
+                 image_screen_pos.y);
+      ImVec2 line_end = ImVec2(
+          image_screen_pos.x + recent_connection_image_width_ + 20.0f,
+          image_screen_pos.y + recent_connection_image_height_ + button_height);
+      ImGui::GetForegroundDrawList()->AddLine(line_start, line_end,
+                                              IM_COL32(0, 0, 0, 122), 1.0f);
+    }
+
+    count++;
+    ImGui::SameLine(0, count != recent_connections_count ? 26.0f : 0.0f);
+  }
+
+  ImGui::EndChild();
+
+  if (show_confirm_delete_connection_) {
+    ConfirmDeleteConnection();
+  }
+
+  return 0;
+}
+
+int Render::ConfirmDeleteConnection() {
+  const ImGuiViewport* viewport = ImGui::GetMainViewport();
+  ImGui::SetNextWindowPos(ImVec2((viewport->WorkSize.x - viewport->WorkPos.x -
+                                  connection_status_window_width_) /
+                                     2,
+                                 (viewport->WorkSize.y - viewport->WorkPos.y -
+                                  connection_status_window_height_) /
+                                     2));
+
+  ImGui::SetNextWindowSize(ImVec2(connection_status_window_width_,
+                                  connection_status_window_height_));
+  ImGui::PushStyleVar(ImGuiStyleVar_FrameRounding, 3.0f);
+  ImGui::PushStyleColor(ImGuiCol_WindowBg, ImVec4(1.0, 1.0, 1.0, 1.0));
+  ImGui::PushStyleVar(ImGuiStyleVar_WindowBorderSize, 1.0f);
+  ImGui::PushStyleVar(ImGuiStyleVar_WindowRounding, 5.0f);
+
+  ImGui::Begin("ConfirmDeleteConnectionWindow", nullptr,
+               ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoCollapse |
+                   ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoTitleBar |
+                   ImGuiWindowFlags_NoSavedSettings);
+  ImGui::PopStyleVar(2);
+  ImGui::PopStyleColor();
+
+  std::string text =
+      localization::confirm_delete_connection[localization_language_index_];
+  ImGui::SetCursorPosX(connection_status_window_width_ * 6 / 19);
+  ImGui::SetCursorPosY(connection_status_window_height_ * 2 / 3);
+
+  // ok
+  ImGui::SetWindowFontScale(0.5f);
+  if (ImGui::Button(localization::ok[localization_language_index_].c_str()) ||
+      ImGui::IsKeyPressed(ImGuiKey_Enter)) {
+    delete_connection_ = true;
+    show_confirm_delete_connection_ = false;
+  }
+
+  ImGui::SameLine();
+  // cancel
+  if (ImGui::Button(
+          localization::cancel[localization_language_index_].c_str()) ||
+      ImGui::IsKeyPressed(ImGuiKey_Escape)) {
+    delete_connection_ = false;
+    show_confirm_delete_connection_ = false;
+  }
+
+  auto window_width = ImGui::GetWindowSize().x;
+  auto window_height = ImGui::GetWindowSize().y;
+
+  auto text_width = ImGui::CalcTextSize(text.c_str()).x;
+  ImGui::SetCursorPosX((window_width - text_width) * 0.5f);
+  ImGui::SetCursorPosY(window_height * 0.2f);
+  ImGui::Text("%s", text.c_str());
+  ImGui::SetWindowFontScale(1.0f);
+
+  ImGui::End();
+  ImGui::PopStyleVar();
+  return 0;
+}

src/single_window/remote_peer_window.cpp

@@ -0,0 +1,135 @@
+#include "layout_style.h"
+#include "localization.h"
+#include "rd_log.h"
+#include "render.h"
+
+static int InputTextCallback(ImGuiInputTextCallbackData *data);
+
+int Render::RemoteWindow() {
+  ImGui::SetNextWindowPos(ImVec2(local_window_width_ + 1.0f, title_bar_height_),
+                          ImGuiCond_Always);
+  ImGui::PushStyleVar(ImGuiStyleVar_FrameRounding, 3.0f);
+
+  ImGui::PushStyleColor(ImGuiCol_ChildBg, ImVec4(1.0f, 1.0f, 1.0f, 1.0f));
+  ImGui::BeginChild("RemoteDesktopWindow",
+                    ImVec2(remote_window_width_, remote_window_height_),
+                    ImGuiChildFlags_None,
+                    ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoCollapse |
+                        ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoTitleBar |
+                        ImGuiWindowFlags_NoBringToFrontOnFocus);
+  ImGui::PopStyleColor();
+
+  ImGui::SetCursorPosY(ImGui::GetCursorPosY() + main_window_text_y_padding_);
+  ImGui::Indent(main_child_window_x_padding_ - 1.0f);
+
+  ImGui::TextColored(
+      ImVec4(0.0f, 0.0f, 0.0f, 0.5f), "%s",
+      localization::remote_desktop[localization_language_index_].c_str());
+
+  ImGui::Spacing();
+  {
+    ImGui::SetNextWindowPos(
+        ImVec2(local_window_width_ + main_child_window_x_padding_ - 1.0f,
+               title_bar_height_ + main_child_window_y_padding_),
+        ImGuiCond_Always);
+    ImGui::PushStyleColor(ImGuiCol_ChildBg, ImVec4(239.0f / 255, 240.0f / 255,
+                                                   242.0f / 255, 1.0f));
+    ImGui::PushStyleVar(ImGuiStyleVar_ChildRounding, 10.0f);
+
+    ImGui::BeginChild(
+        "RemoteDesktopWindow_1",
+        ImVec2(remote_child_window_width_, remote_child_window_height_),
+        ImGuiChildFlags_Border,
+        ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoCollapse |
+            ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoTitleBar |
+            ImGuiWindowFlags_NoBringToFrontOnFocus);
+    ImGui::PopStyleVar();
+    ImGui::PopStyleColor();
+    {
+      ImGui::SetWindowFontScale(0.8f);
+      ImGui::Text(
+          "%s", localization::remote_id[localization_language_index_].c_str());
+
+      ImGui::Spacing();
+      ImGui::SetNextItemWidth(IPUT_WINDOW_WIDTH);
+      ImGui::SetWindowFontScale(1.0f);
+      ImGui::PushStyleVar(ImGuiStyleVar_FrameBorderSize, 1.0f);
+      if (re_enter_remote_id_) {
+        ImGui::SetKeyboardFocusHere();
+        re_enter_remote_id_ = false;
+        memset(remote_id_display_, 0, sizeof(remote_id_display_));
+      }
+      bool enter_pressed = ImGui::InputText(
+          "##remote_id_", remote_id_display_, IM_ARRAYSIZE(remote_id_display_),
+          ImGuiInputTextFlags_CharsDecimal |
+              ImGuiInputTextFlags_EnterReturnsTrue |
+              ImGuiInputTextFlags_CallbackEdit,
+          InputTextCallback);
+
+      ImGui::PopStyleVar();
+      ImGui::SameLine();
+      if (ImGui::Button(ICON_FA_ARROW_RIGHT_LONG, ImVec2(55, 38)) ||
+          enter_pressed) {
+        connect_button_pressed_ = true;
+        remote_id_ = remote_id_display_;
+        remote_id_.erase(remove_if(remote_id_.begin(), remote_id_.end(),
+                                   static_cast<int (*)(int)>(&isspace)),
+                         remote_id_.end());
+        ConnectTo();
+      }
+
+      if (rejoin_) {
+        ConnectTo();
+      }
+    }
+    ImGui::EndChild();
+  }
+  ImGui::EndChild();
+  ImGui::PopStyleVar();
+
+  return 0;
+}
+
+static int InputTextCallback(ImGuiInputTextCallbackData *data) {
+  if (data->BufTextLen > 3 && data->Buf[3] != ' ') {
+    data->InsertChars(3, " ");
+  }
+
+  if (data->BufTextLen > 7 && data->Buf[7] != ' ') {
+    data->InsertChars(7, " ");
+  }
+
+  return 0;
+}
+
+int Render::ConnectTo() {
+  connection_status_ = ConnectionStatus::Connecting;
+  int ret = -1;
+  if (signal_connected_) {
+    if (!connection_established_) {
+      if (0 == strcmp(remote_id_.c_str(), client_id_) && !peer_reserved_) {
+        peer_reserved_ = CreatePeer(&params_);
+        if (peer_reserved_) {
+          LOG_INFO("Create peer[reserved] instance successful");
+          std::string client_id = "C-";
+          client_id += client_id_;
+          Init(peer_reserved_, client_id.c_str());
+          LOG_INFO("Peer[reserved] init finish");
+        } else {
+          LOG_INFO("Create peer[reserved] instance failed");
+        }
+      }
+
+      ret = JoinConnection(peer_reserved_ ? peer_reserved_ : peer_,
+                           remote_id_.c_str(), remote_password_);
+      if (0 == ret) {
+        is_client_mode_ = true;
+        rejoin_ = false;
+      } else {
+        rejoin_ = true;
+      }
+    }
+  }
+
+  return 0;
+}

src/single_window/render.h

@@ -0,0 +1,387 @@
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2024-05-29
+ * Copyright (c) 2024 by DI JUNKUN, All Rights Reserved.
+ */
+
+#ifndef _MAIN_WINDOW_H_
+#define _MAIN_WINDOW_H_
+
+#include <SDL.h>
+
+#include <atomic>
+#include <chrono>
+#include <fstream>
+#include <string>
+
+#include "../../thirdparty/projectx/src/interface/x.h"
+#include "IconsFontAwesome6.h"
+#include "config_center.h"
+#include "device_controller_factory.h"
+#include "imgui.h"
+#include "imgui_impl_sdl2.h"
+#include "imgui_impl_sdlrenderer2.h"
+#include "screen_capturer_factory.h"
+#include "speaker_capturer_factory.h"
+#include "thumbnail.h"
+
+class Render {
+ public:
+  Render();
+  ~Render();
+
+ public:
+  int Run();
+
+ private:
+  int CreateStreamRenderWindow();
+  int TitleBar(bool main_window);
+  int MainWindow();
+  int StreamWindow();
+  int LocalWindow();
+  int RemoteWindow();
+  int RecentConnectionsWindow();
+  int SettingWindow();
+  int ControlWindow();
+  int ControlBar();
+  int AboutWindow();
+  int StatusBar();
+  int ConnectionStatusWindow();
+  int LoadRecentConnections();
+  int ShowRecentConnections();
+
+ private:
+  int CreateRtcConnection();
+  int ConnectTo();
+  int CreateMainWindow();
+  int DestroyMainWindow();
+  int CreateStreamWindow();
+  int DestroyStreamWindow();
+  int SetupFontAndStyle();
+  int SetupMainWindow();
+  int DestroyMainWindowContext();
+  int SetupStreamWindow();
+  int DestroyStreamWindowContext();
+  int DrawMainWindow();
+  int DrawStreamWindow();
+  int ConfirmDeleteConnection();
+  int NetTrafficStats();
+
+ public:
+  static void OnReceiveVideoBufferCb(const XVideoFrame *video_frame,
+                                     const char *user_id, size_t user_id_size,
+                                     void *user_data);
+
+  static void OnReceiveAudioBufferCb(const char *data, size_t size,
+                                     const char *user_id, size_t user_id_size,
+                                     void *user_data);
+
+  static void OnReceiveDataBufferCb(const char *data, size_t size,
+                                    const char *user_id, size_t user_id_size,
+                                    void *user_data);
+
+  static void OnSignalStatusCb(SignalStatus status, void *user_data);
+
+  static void OnConnectionStatusCb(ConnectionStatus status, const char *user_id,
+                                   size_t user_id_size, void *user_data);
+
+  static void NetStatusReport(const char *client_id, size_t client_id_size,
+                              TraversalMode mode,
+                              const XNetTrafficStats *net_traffic_stats,
+                              void *user_data);
+
+  static SDL_HitTestResult HitTestCallback(SDL_Window *window,
+                                           const SDL_Point *area, void *data);
+
+ private:
+  int ProcessMouseKeyEvent(SDL_Event &event);
+  int ProcessMouseEvent(SDL_Event &event);
+
+  int SendKeyEvent(int key_code, bool is_down);
+  int ProcessKeyEvent(int key_code, bool is_down);
+
+  static void SdlCaptureAudioIn(void *userdata, Uint8 *stream, int len);
+  static void SdlCaptureAudioOut(void *userdata, Uint8 *stream, int len);
+
+ private:
+  int SaveSettingsIntoCacheFile();
+  int LoadSettingsFromCacheFile();
+
+  int StartScreenCapturer();
+  int StopScreenCapturer();
+
+  int StartSpeakerCapturer();
+  int StopSpeakerCapturer();
+
+  int StartMouseController();
+  int StopMouseController();
+
+  int StartKeyboardCapturer();
+  int StopKeyboardCapturer();
+
+  int CreateConnectionPeer();
+
+  int AudioDeviceInit();
+  int AudioDeviceDestroy();
+
+ private:
+  typedef struct {
+    char client_id[10];
+    char password[7];
+    int language;
+    int video_quality;
+    int video_encode_format;
+    bool enable_hardware_video_codec;
+    bool enable_turn;
+
+    unsigned char key[16];
+    unsigned char iv[16];
+  } CDCache;
+
+ private:
+  CDCache cd_cache_;
+  std::mutex cd_cache_mutex_;
+
+  ConfigCenter config_center_;
+  ConfigCenter::LANGUAGE localization_language_ =
+      ConfigCenter::LANGUAGE::CHINESE;
+
+  int localization_language_index_ = -1;
+  int localization_language_index_last_ = -1;
+
+  bool modules_inited_ = false;
+
+ private:
+  std::string window_title = "Remote Desk Client";
+  std::string mac_addr_str_ = "";
+  std::string connect_button_label_ = "Connect";
+  std::string fullscreen_button_label_ = "Fullscreen";
+  std::string net_traffic_stats_button_label_ = "Show Net Traffic Stats";
+  std::string mouse_control_button_label_ = "Mouse Control";
+  std::string audio_capture_button_label_ = "Audio Capture";
+  std::string settings_button_label_ = "Setting";
+  char input_password_tmp_[7] = "";
+  char input_password_[7] = "";
+  std::string random_password_ = "";
+  char remote_password_[7] = "";
+  char new_password_[7] = "";
+  char remote_id_display_[12] = "";
+  std::string remote_id_ = "";
+  char client_password_[20] = "";
+
+ private:
+  float title_bar_width_ = 640;
+  float title_bar_height_ = 30;
+  int screen_width_ = 1280;
+  int screen_height_ = 720;
+  float main_window_width_default_ = 640;
+  float main_window_height_default_ = 480;
+  float main_window_width_ = 640;
+  float main_window_height_ = 480;
+  float main_window_width_last_ = 640;
+  float main_window_height_last_ = 480;
+  int stream_window_width_default_ = 1280;
+  int stream_window_height_default_ = 720;
+  float stream_window_width_ = 1280;
+  float stream_window_height_ = 720;
+  int stream_window_width_last_ = 1280;
+  int stream_window_height_last_ = 720;
+  float stream_window_width_before_maximized_ = 1280;
+  float stream_window_height_before_maximized_ = 720;
+  float control_window_min_width_ = 20;
+  float control_window_max_width_ = 200;
+  float control_window_min_height_ = 40;
+  float control_window_max_height_ = 150;
+  float control_window_width_ = 200;
+  float control_window_height_ = 40;
+  float local_window_width_ = 320;
+  float local_window_height_ = 235;
+  float remote_window_width_ = 320;
+  float remote_window_height_ = 235;
+  float local_child_window_width_ = 266;
+  float local_child_window_height_ = 180;
+  float remote_child_window_width_ = 266;
+  float remote_child_window_height_ = 180;
+  float main_window_text_y_padding_ = 10;
+  float main_child_window_x_padding_ = 27;
+  float main_child_window_y_padding_ = 45;
+  float status_bar_height_ = 22;
+  float connection_status_window_width_ = 200;
+  float connection_status_window_height_ = 150;
+  float notification_window_width_ = 200;
+  float notification_window_height_ = 80;
+  float about_window_width_ = 200;
+  float about_window_height_ = 150;
+
+  float control_bar_pos_x_ = 0;
+  float control_bar_pos_y_ = 30;
+  float mouse_diff_control_bar_pos_x_ = 0;
+  float mouse_diff_control_bar_pos_y_ = 0;
+  int mouse_pos_x_ = 0;
+  int mouse_pos_y_ = 0;
+  int mouse_pos_x_last_ = 0;
+  int mouse_pos_y_last_ = 0;
+
+  int main_window_width_real_ = 720;
+  int main_window_height_real_ = 540;
+  float main_window_dpi_scaling_w_ = 1.0f;
+  float main_window_dpi_scaling_h_ = 1.0f;
+
+  int stream_window_width_real_ = 1280;
+  int stream_window_height_real_ = 720;
+  float stream_window_dpi_scaling_w_ = 1.0f;
+  float stream_window_dpi_scaling_h_ = 1.0f;
+
+  int texture_width_ = 1280;
+  int texture_height_ = 720;
+
+  int video_width_ = 1280;
+  int video_height_ = 720;
+  size_t video_size_ = 1280 * 720 * 3;
+
+  SDL_Window *main_window_ = nullptr;
+  SDL_Renderer *main_renderer_ = nullptr;
+  ImGuiContext *main_ctx_ = nullptr;
+
+  SDL_Window *stream_window_ = nullptr;
+  SDL_Renderer *stream_renderer_ = nullptr;
+  ImGuiContext *stream_ctx_ = nullptr;
+  bool stream_window_created_ = false;
+  bool stream_window_inited_ = false;
+
+  // recent connections
+  std::map<std::string, SDL_Texture *> recent_connection_textures_;
+  int recent_connection_image_width_ = 160;
+  int recent_connection_image_height_ = 90;
+  uint32_t recent_connection_image_save_time_ = 0;
+
+  // video window
+  SDL_Texture *stream_texture_ = nullptr;
+  SDL_Rect stream_render_rect_;
+  SDL_Rect stream_render_rect_last_;
+  uint32_t stream_pixformat_ = 0;
+  std::string host_name_ = "";
+
+  unsigned char aes128_key_[16];
+  unsigned char aes128_iv_[16];
+  std::unique_ptr<Thumbnail> thumbnail_;
+
+  bool resizable_ = false;
+  bool label_inited_ = false;
+  bool exit_ = false;
+  bool exit_video_window_ = false;
+  bool connection_established_ = false;
+  bool connect_button_pressed_ = false;
+  bool password_validating_ = false;
+  uint32_t password_validating_time_ = 0;
+  bool fullscreen_button_pressed_ = false;
+  bool net_traffic_stats_button_pressed_ = false;
+  bool mouse_control_button_pressed_ = false;
+  bool audio_capture_button_pressed_ = false;
+  bool show_settings_window_ = false;
+  bool is_create_connection_ = false;
+  bool audio_buffer_fresh_ = false;
+  bool rejoin_ = false;
+  bool control_mouse_ = false;
+  bool stream_window_grabbed_ = false;
+  bool audio_capture_ = true;
+  bool local_id_copied_ = false;
+  bool show_password_ = true;
+  bool password_inited_ = false;
+  bool regenerate_password_ = false;
+  bool show_about_window_ = false;
+  bool show_connection_status_window_ = false;
+  bool show_reset_password_window_ = false;
+  bool focus_on_input_widget_ = true;
+  bool window_maximized_ = false;
+  bool streaming_ = false;
+  bool is_client_mode_ = false;
+  bool is_control_bar_in_left_ = true;
+  bool is_control_bar_in_top_ = true;
+  bool control_bar_hovered_ = false;
+  bool control_bar_expand_ = true;
+  bool reset_control_bar_pos_ = false;
+  bool control_window_width_is_changing_ = false;
+  bool control_window_height_is_changing_ = false;
+  bool reload_recent_connections_ = true;
+  bool hostname_sent_ = false;
+  bool show_confirm_delete_connection_ = false;
+  bool delete_connection_ = false;
+  bool remember_password_ = false;
+  bool re_enter_remote_id_ = false;
+
+  double copy_start_time_ = 0;
+  double regenerate_password_start_time_ = 0;
+  double control_bar_button_pressed_time_ = 0;
+  double net_traffic_stats_button_pressed_time_ = 0;
+
+  ImVec2 control_winodw_pos_;
+
+  int fps_ = 0;
+  uint32_t start_time_;
+  uint32_t end_time_;
+  uint32_t elapsed_time_;
+  uint32_t frame_count_ = 0;
+
+ private:
+  ConnectionStatus connection_status_ = ConnectionStatus::Closed;
+  SignalStatus signal_status_ = SignalStatus::SignalClosed;
+  std::string signal_status_str_ = "";
+  std::string connection_status_str_ = "";
+  bool signal_connected_ = false;
+  bool p2p_mode_ = true;
+
+ private:
+  PeerPtr *peer_ = nullptr;
+  PeerPtr *peer_reserved_ = nullptr;
+  Params params_;
+  TraversalMode traversal_mode_ = TraversalMode::UnknownMode;
+  XNetTrafficStats net_traffic_stats_;
+
+ private:
+  SDL_AudioDeviceID input_dev_;
+  SDL_AudioDeviceID output_dev_;
+  unsigned char audio_buffer_[720];
+  int audio_len_ = 0;
+  unsigned char *dst_buffer_ = nullptr;
+  size_t dst_buffer_capacity_ = 0;
+
+ private:
+  ScreenCapturerFactory *screen_capturer_factory_ = nullptr;
+  ScreenCapturer *screen_capturer_ = nullptr;
+  SpeakerCapturerFactory *speaker_capturer_factory_ = nullptr;
+  SpeakerCapturer *speaker_capturer_ = nullptr;
+  DeviceControllerFactory *device_controller_factory_ = nullptr;
+  MouseController *mouse_controller_ = nullptr;
+  KeyboardCapturer *keyboard_capturer_ = nullptr;
+  uint64_t last_frame_time_;
+
+ private:
+  char client_id_[10] = "";
+  char client_id_display_[12] = "";
+  char password_saved_[7] = "";
+  int language_button_value_ = 0;
+  int video_quality_button_value_ = 0;
+  int video_encode_format_button_value_ = 0;
+  bool enable_hardware_video_codec_ = false;
+  bool enable_turn_ = false;
+
+  int language_button_value_last_ = 0;
+  int video_quality_button_value_last_ = 0;
+  int video_encode_format_button_value_last_ = 0;
+  bool enable_hardware_video_codec_last_ = false;
+  bool enable_turn_last_ = false;
+
+ private:
+  std::atomic<bool> start_screen_capturer_{false};
+  std::atomic<bool> start_mouse_controller_{false};
+  std::atomic<bool> start_keyboard_capturer_{false};
+  std::atomic<bool> screen_capturer_is_started_{false};
+  std::atomic<bool> mouse_controller_is_started_{false};
+  std::atomic<bool> keyboard_capturer_is_started_{false};
+
+ private:
+  bool settings_window_pos_reset_ = true;
+};
+
+#endif

src/single_window/render_callback_func.cpp

@@ -0,0 +1,373 @@
+#include "device_controller.h"
+#include "localization.h"
+#include "platform.h"
+#include "rd_log.h"
+#include "render.h"
+
+// Refresh Event
+#define REFRESH_EVENT (SDL_USEREVENT + 1)
+#define NV12_BUFFER_SIZE 1280 * 720 * 3 / 2
+
+#ifdef REMOTE_DESK_DEBUG
+#else
+#define MOUSE_CONTROL 1
+#endif
+
+int Render::ProcessMouseKeyEvent(SDL_Event &event) {
+  if (!control_mouse_ || !connection_established_) {
+    return 0;
+  }
+
+  if (SDL_KEYDOWN == event.type || SDL_KEYUP == event.type) {
+  } else {
+    ProcessMouseEvent(event);
+  }
+
+  return 0;
+}
+
+int Render::ProcessMouseEvent(SDL_Event &event) {
+  float ratio_x = (float)video_width_ / (float)stream_render_rect_.w;
+  float ratio_y = (float)video_height_ / (float)stream_render_rect_.h;
+
+  if (event.button.x <= stream_render_rect_.x) {
+    event.button.x = 0;
+  } else if (event.button.x > stream_render_rect_.x &&
+             event.button.x < stream_render_rect_.x + stream_render_rect_.w) {
+    event.button.x -= stream_render_rect_.x;
+  } else if (event.button.x >= stream_render_rect_.x + stream_render_rect_.w) {
+    event.button.x = stream_render_rect_.w;
+  }
+
+  if (event.button.y <= stream_render_rect_.y) {
+    event.button.y = 0;
+  } else if (event.button.y > stream_render_rect_.y &&
+             event.button.y < stream_render_rect_.y + stream_render_rect_.h) {
+    event.button.y -= stream_render_rect_.y;
+  } else if (event.button.y >= stream_render_rect_.y + stream_render_rect_.h) {
+    event.button.y = stream_render_rect_.h;
+  }
+
+  RemoteAction remote_action;
+  remote_action.m.x = (size_t)(event.button.x * ratio_x);
+  remote_action.m.y = (size_t)(event.button.y * ratio_y);
+
+  if (SDL_MOUSEBUTTONDOWN == event.type) {
+    remote_action.type = ControlType::mouse;
+    if (SDL_BUTTON_LEFT == event.button.button) {
+      remote_action.m.flag = MouseFlag::left_down;
+    } else if (SDL_BUTTON_RIGHT == event.button.button) {
+      remote_action.m.flag = MouseFlag::right_down;
+    }
+    if (control_bar_hovered_) {
+      remote_action.m.flag = MouseFlag::move;
+    }
+    SendDataFrame(peer_, (const char *)&remote_action, sizeof(remote_action));
+  } else if (SDL_MOUSEBUTTONUP == event.type) {
+    remote_action.type = ControlType::mouse;
+    if (SDL_BUTTON_LEFT == event.button.button) {
+      remote_action.m.flag = MouseFlag::left_up;
+    } else if (SDL_BUTTON_RIGHT == event.button.button) {
+      remote_action.m.flag = MouseFlag::right_up;
+    }
+    if (control_bar_hovered_) {
+      remote_action.m.flag = MouseFlag::move;
+    }
+    SendDataFrame(peer_, (const char *)&remote_action, sizeof(remote_action));
+  } else if (SDL_MOUSEMOTION == event.type) {
+    remote_action.type = ControlType::mouse;
+    remote_action.m.flag = MouseFlag::move;
+    SendDataFrame(peer_, (const char *)&remote_action, sizeof(remote_action));
+  }
+
+  return 0;
+}
+
+int Render::SendKeyEvent(int key_code, bool is_down) {
+  RemoteAction remote_action;
+  remote_action.type = ControlType::keyboard;
+  if (is_down) {
+    remote_action.k.flag = KeyFlag::key_down;
+  } else {
+    remote_action.k.flag = KeyFlag::key_up;
+  }
+  remote_action.k.key_value = key_code;
+
+  SendDataFrame(peer_, (const char *)&remote_action, sizeof(remote_action));
+
+  return 0;
+}
+
+int Render::ProcessKeyEvent(int key_code, bool is_down) {
+  if (keyboard_capturer_) {
+    keyboard_capturer_->SendKeyboardCommand(key_code, is_down);
+  }
+
+  return 0;
+}
+
+void Render::SdlCaptureAudioIn(void *userdata, Uint8 *stream, int len) {
+  Render *render = (Render *)userdata;
+  if (!render) {
+    return;
+  }
+
+  if (1) {
+    if ("Connected" == render->connection_status_str_) {
+      SendAudioFrame(render->peer_, (const char *)stream, len);
+    }
+  } else {
+    memcpy(render->audio_buffer_, stream, len);
+    render->audio_len_ = len;
+    SDL_Delay(10);
+    render->audio_buffer_fresh_ = true;
+  }
+}
+
+void Render::SdlCaptureAudioOut([[maybe_unused]] void *userdata,
+                                [[maybe_unused]] Uint8 *stream,
+                                [[maybe_unused]] int len) {
+  // Render *render = (Render *)userdata;
+  // if ("Connected" == render->connection_status_str_) {
+  //   SendAudioFrame(render->peer_,  (const char *)stream, len);
+  // }
+
+  // if (!render->audio_buffer_fresh_) {
+  //   return;
+  // }
+
+  // SDL_memset(stream, 0, len);
+
+  // if (render->audio_len_ == 0) {
+  //   return;
+  // } else {
+  // }
+
+  // len = (len > render->audio_len_ ? render->audio_len_ : len);
+  // SDL_MixAudioFormat(stream, render->audio_buffer_, AUDIO_S16LSB, len,
+  //                    SDL_MIX_MAXVOLUME);
+  // render->audio_buffer_fresh_ = false;
+}
+
+void Render::OnReceiveVideoBufferCb(const XVideoFrame *video_frame,
+                                    [[maybe_unused]] const char *user_id,
+                                    [[maybe_unused]] size_t user_id_size,
+                                    void *user_data) {
+  Render *render = (Render *)user_data;
+  if (!render) {
+    return;
+  }
+
+  if (render->connection_established_) {
+    if (!render->dst_buffer_) {
+      render->dst_buffer_capacity_ = video_frame->size;
+      render->dst_buffer_ = new unsigned char[video_frame->size];
+    }
+
+    if (render->dst_buffer_capacity_ < video_frame->size) {
+      delete render->dst_buffer_;
+      render->dst_buffer_capacity_ = video_frame->size;
+      render->dst_buffer_ = new unsigned char[video_frame->size];
+    }
+
+    memcpy(render->dst_buffer_, video_frame->data, video_frame->size);
+    render->video_width_ = video_frame->width;
+    render->video_height_ = video_frame->height;
+    render->video_size_ = video_frame->size;
+
+    SDL_Event event;
+    event.type = REFRESH_EVENT;
+    SDL_PushEvent(&event);
+    render->streaming_ = true;
+  }
+}
+
+void Render::OnReceiveAudioBufferCb(const char *data, size_t size,
+                                    [[maybe_unused]] const char *user_id,
+                                    [[maybe_unused]] size_t user_id_size,
+                                    void *user_data) {
+  Render *render = (Render *)user_data;
+  if (!render) {
+    return;
+  }
+
+  render->audio_buffer_fresh_ = true;
+  SDL_QueueAudio(render->output_dev_, data, (uint32_t)size);
+}
+
+void Render::OnReceiveDataBufferCb(const char *data, size_t size,
+                                   const char *user_id, size_t user_id_size,
+                                   void *user_data) {
+  Render *render = (Render *)user_data;
+  if (!render) {
+    return;
+  }
+
+  std::string user(user_id, user_id_size);
+  RemoteAction remote_action;
+  memcpy(&remote_action, data, size);
+
+  if (ControlType::mouse == remote_action.type && render->mouse_controller_) {
+    render->mouse_controller_->SendCommand(remote_action);
+  } else if (ControlType::audio_capture == remote_action.type) {
+    if (remote_action.a) {
+      render->StartSpeakerCapturer();
+    } else {
+      render->StopSpeakerCapturer();
+    }
+  } else if (ControlType::keyboard == remote_action.type) {
+    render->ProcessKeyEvent((int)remote_action.k.key_value,
+                            remote_action.k.flag == KeyFlag::key_down);
+  } else if (ControlType::host_infomation == remote_action.type) {
+    render->host_name_ =
+        std::string(remote_action.i.host_name, remote_action.i.host_name_size);
+    LOG_INFO("Remote hostname: [{}]", render->host_name_);
+  }
+}
+
+void Render::OnSignalStatusCb(SignalStatus status, void *user_data) {
+  Render *render = (Render *)user_data;
+  if (!render) {
+    return;
+  }
+
+  render->signal_status_ = status;
+  if (SignalStatus::SignalConnecting == status) {
+    render->signal_status_str_ = "SignalConnecting";
+    render->signal_connected_ = false;
+  } else if (SignalStatus::SignalConnected == status) {
+    render->signal_status_str_ = "SignalConnected";
+    render->signal_connected_ = true;
+  } else if (SignalStatus::SignalFailed == status) {
+    render->signal_status_str_ = "SignalFailed";
+    render->signal_connected_ = false;
+  } else if (SignalStatus::SignalClosed == status) {
+    render->signal_status_str_ = "SignalClosed";
+    render->signal_connected_ = false;
+  } else if (SignalStatus::SignalReconnecting == status) {
+    render->signal_status_str_ = "SignalReconnecting";
+    render->signal_connected_ = false;
+  } else if (SignalStatus::SignalServerClosed == status) {
+    render->signal_status_str_ = "SignalServerClosed";
+    render->signal_connected_ = false;
+    render->is_create_connection_ = false;
+  }
+}
+
+void Render::OnConnectionStatusCb(ConnectionStatus status,
+                                  [[maybe_unused]] const char *user_id,
+                                  [[maybe_unused]] const size_t user_id_size,
+                                  void *user_data) {
+  Render *render = (Render *)user_data;
+  if (!render) {
+    return;
+  }
+
+  render->connection_status_ = status;
+  render->show_connection_status_window_ = true;
+  if (ConnectionStatus::Connecting == status) {
+    render->connection_status_str_ = "Connecting";
+  } else if (ConnectionStatus::Gathering == status) {
+    render->connection_status_str_ = "Gathering";
+  } else if (ConnectionStatus::Connected == status) {
+    render->connection_status_str_ = "Connected";
+    render->connection_established_ = true;
+    if (render->peer_reserved_ || !render->is_client_mode_) {
+      render->start_screen_capturer_ = true;
+      render->start_mouse_controller_ = true;
+    }
+    if (!render->hostname_sent_) {
+      // TODO: self and remote hostname
+      std::string host_name = GetHostName();
+      RemoteAction remote_action;
+      remote_action.type = ControlType::host_infomation;
+      memcpy(&remote_action.i.host_name, host_name.data(), host_name.size());
+      remote_action.i.host_name_size = host_name.size();
+      int ret = SendDataFrame(render->peer_, (const char *)&remote_action,
+                              sizeof(remote_action));
+      if (0 == ret) {
+        render->hostname_sent_ = true;
+      }
+    }
+  } else if (ConnectionStatus::Disconnected == status) {
+    render->connection_status_str_ = "Disconnected";
+    render->password_validating_time_ = 0;
+  } else if (ConnectionStatus::Failed == status) {
+    render->connection_status_str_ = "Failed";
+    render->password_validating_time_ = 0;
+  } else if (ConnectionStatus::Closed == status) {
+    render->connection_status_str_ = "Closed";
+    render->password_validating_time_ = 0;
+    render->start_screen_capturer_ = false;
+    render->start_mouse_controller_ = false;
+    render->connection_established_ = false;
+    render->control_mouse_ = false;
+    render->mouse_control_button_pressed_ = false;
+    render->start_keyboard_capturer_ = false;
+    render->hostname_sent_ = false;
+    if (render->audio_capture_) {
+      render->StopSpeakerCapturer();
+      render->audio_capture_ = false;
+      render->audio_capture_button_pressed_ = false;
+    }
+    render->exit_video_window_ = false;
+    if (!render->rejoin_) {
+      memset(render->remote_password_, 0, sizeof(render->remote_password_));
+    }
+    if (render->dst_buffer_) {
+      memset(render->dst_buffer_, 0, render->dst_buffer_capacity_);
+      SDL_UpdateTexture(render->stream_texture_, NULL, render->dst_buffer_,
+                        render->texture_width_);
+    }
+  } else if (ConnectionStatus::IncorrectPassword == status) {
+    render->connection_status_str_ = "Incorrect password";
+    render->password_validating_ = false;
+    render->password_validating_time_++;
+    if (render->connect_button_pressed_) {
+      render->connection_established_ = false;
+      render->connect_button_label_ =
+          render->connect_button_pressed_
+              ? localization::disconnect[render->localization_language_index_]
+              : localization::connect[render->localization_language_index_];
+    }
+  } else if (ConnectionStatus::NoSuchTransmissionId == status) {
+    render->connection_status_str_ = "No such transmission id";
+    if (render->connect_button_pressed_) {
+      render->connection_established_ = false;
+      render->connect_button_label_ =
+          render->connect_button_pressed_
+              ? localization::disconnect[render->localization_language_index_]
+              : localization::connect[render->localization_language_index_];
+    }
+  }
+}
+
+void Render::NetStatusReport(const char *client_id, size_t client_id_size,
+                             TraversalMode mode,
+                             const XNetTrafficStats *net_traffic_stats,
+                             void *user_data) {
+  Render *render = (Render *)user_data;
+  if (!render) {
+    return;
+  }
+
+  if (0 == strcmp(render->client_id_, "")) {
+    memset(&render->client_id_, 0, sizeof(render->client_id_));
+    memcpy(render->client_id_, client_id, client_id_size);
+    LOG_INFO("Use client id [{}] and save id into cache file", client_id);
+    render->SaveSettingsIntoCacheFile();
+  }
+  if (render->traversal_mode_ != mode) {
+    render->traversal_mode_ = mode;
+    LOG_INFO("Net mode: [{}]", int(render->traversal_mode_));
+  }
+
+  if (!net_traffic_stats) {
+    return;
+  }
+
+  // only display client side net status if connected to itself
+  if (!(render->peer_reserved_ && !strstr(client_id, "C-"))) {
+    render->net_traffic_stats_ = *net_traffic_stats;
+  }
+}

src/single_window/setting_window.cpp

@@ -0,0 +1,284 @@
+#include "layout_style.h"
+#include "localization.h"
+#include "rd_log.h"
+#include "render.h"
+
+int Render::SettingWindow() {
+  if (show_settings_window_) {
+    if (settings_window_pos_reset_) {
+      const ImGuiViewport *viewport = ImGui::GetMainViewport();
+      if (ConfigCenter::LANGUAGE::CHINESE == localization_language_) {
+        ImGui::SetNextWindowPos(
+            ImVec2((viewport->WorkSize.x - viewport->WorkPos.x -
+                    SETTINGS_WINDOW_WIDTH_CN) /
+                       2,
+                   (viewport->WorkSize.y - viewport->WorkPos.y -
+                    SETTINGS_WINDOW_HEIGHT_CN) /
+                       2));
+
+        ImGui::SetNextWindowSize(
+            ImVec2(SETTINGS_WINDOW_WIDTH_CN, SETTINGS_WINDOW_HEIGHT_CN));
+      } else {
+        ImGui::SetNextWindowPos(
+            ImVec2((viewport->WorkSize.x - viewport->WorkPos.x -
+                    SETTINGS_WINDOW_WIDTH_EN) /
+                       2,
+                   (viewport->WorkSize.y - viewport->WorkPos.y -
+                    SETTINGS_WINDOW_HEIGHT_EN) /
+                       2));
+
+        ImGui::SetNextWindowSize(
+            ImVec2(SETTINGS_WINDOW_WIDTH_EN, SETTINGS_WINDOW_HEIGHT_EN));
+      }
+
+      settings_window_pos_reset_ = false;
+    }
+
+    // Settings
+    {
+      ImGui::SetWindowFontScale(0.5f);
+      ImGui::PushStyleColor(ImGuiCol_WindowBg, ImVec4(1.0f, 1.0f, 1.0f, 1.0f));
+      ImGui::PushStyleVar(ImGuiStyleVar_WindowRounding, 5.0f);
+      ImGui::PushStyleVar(ImGuiStyleVar_FrameRounding, 3.0f);
+
+      ImGui::Begin(localization::settings[localization_language_index_].c_str(),
+                   nullptr,
+                   ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoCollapse |
+                       ImGuiWindowFlags_NoSavedSettings);
+      ImGui::SetWindowFontScale(1.0f);
+      ImGui::SetWindowFontScale(0.5f);
+      ImGui::PushStyleVar(ImGuiStyleVar_FrameBorderSize, 1.0f);
+      {
+        const char *language_items[] = {
+            localization::language_zh[localization_language_index_].c_str(),
+            localization::language_en[localization_language_index_].c_str()};
+
+        ImGui::SetCursorPosY(32);
+        ImGui::Text(
+            "%s", localization::language[localization_language_index_].c_str());
+        if (ConfigCenter::LANGUAGE::CHINESE == localization_language_) {
+          ImGui::SetCursorPosX(LANGUAGE_SELECT_WINDOW_PADDING_CN);
+        } else {
+          ImGui::SetCursorPosX(LANGUAGE_SELECT_WINDOW_PADDING_EN);
+        }
+        ImGui::SetCursorPosY(30);
+        ImGui::SetNextItemWidth(SETTINGS_SELECT_WINDOW_WIDTH);
+
+        ImGui::Combo("##language", &language_button_value_, language_items,
+                     IM_ARRAYSIZE(language_items));
+      }
+
+      ImGui::Separator();
+
+      if (streaming_) {
+        ImGui::BeginDisabled();
+      }
+
+      {
+        const char *video_quality_items[] = {
+            localization::video_quality_high[localization_language_index_]
+                .c_str(),
+            localization::video_quality_medium[localization_language_index_]
+                .c_str(),
+            localization::video_quality_low[localization_language_index_]
+                .c_str()};
+
+        ImGui::SetCursorPosY(62);
+        ImGui::Text(
+            "%s",
+            localization::video_quality[localization_language_index_].c_str());
+
+        if (ConfigCenter::LANGUAGE::CHINESE == localization_language_) {
+          ImGui::SetCursorPosX(VIDEO_QUALITY_SELECT_WINDOW_PADDING_CN);
+        } else {
+          ImGui::SetCursorPosX(VIDEO_QUALITY_SELECT_WINDOW_PADDING_EN);
+        }
+        ImGui::SetCursorPosY(60);
+        ImGui::SetNextItemWidth(SETTINGS_SELECT_WINDOW_WIDTH);
+
+        ImGui::Combo("##video_quality", &video_quality_button_value_,
+                     video_quality_items, IM_ARRAYSIZE(video_quality_items));
+      }
+
+      ImGui::Separator();
+
+      {
+        const char *video_encode_format_items[] = {
+            localization::av1[localization_language_index_].c_str(),
+            localization::h264[localization_language_index_].c_str()};
+
+        ImGui::SetCursorPosY(92);
+        ImGui::Text(
+            "%s",
+            localization::video_encode_format[localization_language_index_]
+                .c_str());
+
+        if (ConfigCenter::LANGUAGE::CHINESE == localization_language_) {
+          ImGui::SetCursorPosX(VIDEO_ENCODE_FORMAT_SELECT_WINDOW_PADDING_CN);
+        } else {
+          ImGui::SetCursorPosX(VIDEO_ENCODE_FORMAT_SELECT_WINDOW_PADDING_EN);
+        }
+        ImGui::SetCursorPosY(90);
+        ImGui::SetNextItemWidth(SETTINGS_SELECT_WINDOW_WIDTH);
+
+        ImGui::Combo(
+            "##video_encode_format", &video_encode_format_button_value_,
+            video_encode_format_items, IM_ARRAYSIZE(video_encode_format_items));
+      }
+
+      ImGui::Separator();
+
+      {
+        ImGui::SetCursorPosY(122);
+        ImGui::Text("%s", localization::enable_hardware_video_codec
+                              [localization_language_index_]
+                                  .c_str());
+
+        if (ConfigCenter::LANGUAGE::CHINESE == localization_language_) {
+          ImGui::SetCursorPosX(ENABLE_HARDWARE_VIDEO_CODEC_CHECKBOX_PADDING_CN);
+        } else {
+          ImGui::SetCursorPosX(ENABLE_HARDWARE_VIDEO_CODEC_CHECKBOX_PADDING_EN);
+        }
+        ImGui::SetCursorPosY(120);
+        ImGui::Checkbox("##enable_hardware_video_codec",
+                        &enable_hardware_video_codec_);
+      }
+
+      ImGui::Separator();
+
+      {
+        ImGui::SetCursorPosY(152);
+        ImGui::Text(
+            "%s",
+            localization::enable_turn[localization_language_index_].c_str());
+
+        if (ConfigCenter::LANGUAGE::CHINESE == localization_language_) {
+          ImGui::SetCursorPosX(ENABLE_TURN_CHECKBOX_PADDING_CN);
+        } else {
+          ImGui::SetCursorPosX(ENABLE_TURN_CHECKBOX_PADDING_EN);
+        }
+        ImGui::SetCursorPosY(150);
+        ImGui::Checkbox("##enable_turn", &enable_turn_);
+      }
+
+      if (streaming_) {
+        ImGui::EndDisabled();
+      }
+
+      if (ConfigCenter::LANGUAGE::CHINESE == localization_language_) {
+        ImGui::SetCursorPosX(SETTINGS_OK_BUTTON_PADDING_CN);
+      } else {
+        ImGui::SetCursorPosX(SETTINGS_OK_BUTTON_PADDING_EN);
+      }
+      ImGui::SetCursorPosY(190.0f);
+      ImGui::PopStyleVar();
+
+      // OK
+      if (ImGui::Button(
+              localization::ok[localization_language_index_].c_str())) {
+        show_settings_window_ = false;
+
+        // Language
+        if (language_button_value_ == 0) {
+          config_center_.SetLanguage(ConfigCenter::LANGUAGE::CHINESE);
+        } else {
+          config_center_.SetLanguage(ConfigCenter::LANGUAGE::ENGLISH);
+        }
+        language_button_value_last_ = language_button_value_;
+        localization_language_ = (ConfigCenter::LANGUAGE)language_button_value_;
+        localization_language_index_ = language_button_value_;
+        LOG_INFO("Set localization language: {}",
+                 localization_language_index_ == 0 ? "zh" : "en");
+
+        // Video quality
+        if (video_quality_button_value_ == 0) {
+          config_center_.SetVideoQuality(ConfigCenter::VIDEO_QUALITY::HIGH);
+        } else if (video_quality_button_value_ == 1) {
+          config_center_.SetVideoQuality(ConfigCenter::VIDEO_QUALITY::MEDIUM);
+        } else {
+          config_center_.SetVideoQuality(ConfigCenter::VIDEO_QUALITY::LOW);
+        }
+        video_quality_button_value_last_ = video_quality_button_value_;
+
+        // Video encode format
+        if (video_encode_format_button_value_ == 0) {
+          config_center_.SetVideoEncodeFormat(
+              ConfigCenter::VIDEO_ENCODE_FORMAT::AV1);
+        } else if (video_encode_format_button_value_ == 1) {
+          config_center_.SetVideoEncodeFormat(
+              ConfigCenter::VIDEO_ENCODE_FORMAT::H264);
+        }
+        video_encode_format_button_value_last_ =
+            video_encode_format_button_value_;
+
+        // Hardware video codec
+        if (enable_hardware_video_codec_) {
+          config_center_.SetHardwareVideoCodec(true);
+        } else {
+          config_center_.SetHardwareVideoCodec(false);
+        }
+        enable_hardware_video_codec_last_ = enable_hardware_video_codec_;
+
+        // TURN mode
+        if (enable_turn_) {
+          config_center_.SetTurn(true);
+        } else {
+          config_center_.SetTurn(false);
+        }
+        enable_turn_last_ = enable_turn_;
+
+        SaveSettingsIntoCacheFile();
+        settings_window_pos_reset_ = true;
+
+        // Recreate peer instance
+        LoadSettingsFromCacheFile();
+
+        // Recreate peer instance
+        if (!streaming_) {
+          LOG_INFO("Recreate peer instance");
+          DestroyPeer(&peer_);
+          is_create_connection_ = false;
+          CreateConnectionPeer();
+        }
+      }
+
+      ImGui::SameLine();
+      // Cancel
+      if (ImGui::Button(
+              localization::cancel[localization_language_index_].c_str())) {
+        show_settings_window_ = false;
+        if (language_button_value_ != language_button_value_last_) {
+          language_button_value_ = language_button_value_last_;
+        }
+
+        if (video_quality_button_value_ != video_quality_button_value_last_) {
+          video_quality_button_value_ = video_quality_button_value_last_;
+        }
+
+        if (video_encode_format_button_value_ !=
+            video_encode_format_button_value_last_) {
+          video_encode_format_button_value_ =
+              video_encode_format_button_value_last_;
+        }
+
+        if (enable_hardware_video_codec_ != enable_hardware_video_codec_last_) {
+          enable_hardware_video_codec_ = enable_hardware_video_codec_last_;
+        }
+
+        if (enable_turn_ != enable_turn_last_) {
+          enable_turn_ = enable_turn_last_;
+        }
+
+        settings_window_pos_reset_ = true;
+      }
+      ImGui::SetWindowFontScale(1.0f);
+      ImGui::SetWindowFontScale(0.5f);
+      ImGui::End();
+      ImGui::PopStyleVar(2);
+      ImGui::PopStyleColor();
+      ImGui::SetWindowFontScale(1.0f);
+    }
+  }
+
+  return 0;
+}

src/single_window/status_bar.cpp

@@ -0,0 +1,38 @@
+#include "localization.h"
+#include "render.h"
+
+int Render::StatusBar() {
+  ImGui::PushStyleColor(ImGuiCol_ChildBg, ImVec4(1.0f, 1.0f, 1.0f, 1.0f));
+  static bool a, b, c, d, e;
+  ImGui::SetNextWindowPos(
+      ImVec2(0, main_window_height_default_ - status_bar_height_ - 1),
+      ImGuiCond_Always);
+
+  ImGui::BeginChild(
+      "StatusBar", ImVec2(main_window_width_, status_bar_height_ + 1),
+      ImGuiChildFlags_Border,
+      ImGuiWindowFlags_NoDecoration | ImGuiWindowFlags_NoBringToFrontOnFocus);
+
+  ImVec2 dot_pos =
+      ImVec2(13, main_window_height_default_ - status_bar_height_ + 11.0f);
+  ImDrawList* draw_list = ImGui::GetWindowDrawList();
+  draw_list->AddCircleFilled(dot_pos, 5.0f,
+                             ImColor(signal_connected_ ? 0.0f : 1.0f,
+                                     signal_connected_ ? 1.0f : 0.0f, 0.0f),
+                             100);
+  draw_list->AddCircle(dot_pos, 6.0f, ImColor(1.0f, 1.0f, 1.0f), 100);
+
+  ImGui::SetWindowFontScale(0.6f);
+  draw_list->AddText(
+      ImVec2(25, main_window_height_default_ - status_bar_height_ + 3.0f),
+      ImColor(0.0f, 0.0f, 0.0f),
+      signal_connected_
+          ? localization::signal_connected[localization_language_index_].c_str()
+          : localization::signal_disconnected[localization_language_index_]
+                .c_str());
+  ImGui::SetWindowFontScale(1.0f);
+
+  ImGui::PopStyleColor();
+  ImGui::EndChild();
+  return 0;
+}

src/single_window/stream_window.cpp

@@ -0,0 +1,26 @@
+#include "localization.h"
+#include "rd_log.h"
+#include "render.h"
+
+int Render::StreamWindow() {
+  ImGui::SetNextWindowPos(
+      ImVec2(0, fullscreen_button_pressed_ ? 0 : title_bar_height_),
+      ImGuiCond_Always);
+  ImGui::SetNextWindowSize(
+      ImVec2(stream_window_width_, stream_window_height_ - title_bar_height_),
+      ImGuiCond_Always);
+  ImGui::PushStyleColor(ImGuiCol_WindowBg, ImVec4(1, 1, 1, 0));
+  ImGui::PushStyleColor(ImGuiCol_Border,
+                        ImVec4(178 / 255.0f, 178 / 255.0f, 178 / 255.0f,
+                               fullscreen_button_pressed_ ? 0 : 1.0f));
+  ImGui::Begin("VideoBg", nullptr,
+               ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoDecoration |
+                   ImGuiWindowFlags_NoBringToFrontOnFocus);
+  ImGui::PopStyleColor(2);
+
+  ControlWindow();
+
+  ImGui::End();
+
+  return 0;
+}

src/single_window/thumbnail.cpp

@@ -0,0 +1,363 @@
+#include "thumbnail.h"
+
+#include <openssl/aes.h>
+#include <openssl/crypto.h>
+#include <openssl/evp.h>
+#include <openssl/rand.h>
+
+#include <chrono>
+#include <fstream>
+#include <iomanip>
+#include <iostream>
+#include <map>
+#include <string>
+#include <vector>
+
+#include "libyuv.h"
+#include "rd_log.h"
+
+#define STB_IMAGE_IMPLEMENTATION
+#include "stb_image.h"
+#define STB_IMAGE_WRITE_IMPLEMENTATION
+#include "stb_image_write.h"
+
+static std::string test;
+
+void ScaleYUV420pToABGR(char* dst_buffer_, int video_width_, int video_height_,
+                        int scaled_video_width_, int scaled_video_height_,
+                        char* rgba_buffer_) {
+  int src_y_size = video_width_ * video_height_;
+  int src_uv_size = (video_width_ + 1) / 2 * (video_height_ + 1) / 2;
+  int dst_y_size = scaled_video_width_ * scaled_video_height_;
+  int dst_uv_size =
+      (scaled_video_width_ + 1) / 2 * (scaled_video_height_ + 1) / 2;
+
+  uint8_t* src_y = reinterpret_cast<uint8_t*>(dst_buffer_);
+  uint8_t* src_u = src_y + src_y_size;
+  uint8_t* src_v = src_u + src_uv_size;
+
+  std::unique_ptr<uint8_t[]> dst_y(new uint8_t[dst_y_size]);
+  std::unique_ptr<uint8_t[]> dst_u(new uint8_t[dst_uv_size]);
+  std::unique_ptr<uint8_t[]> dst_v(new uint8_t[dst_uv_size]);
+
+  libyuv::I420Scale(src_y, video_width_, src_u, (video_width_ + 1) / 2, src_v,
+                    (video_width_ + 1) / 2, video_width_, video_height_,
+                    dst_y.get(), scaled_video_width_, dst_u.get(),
+                    (scaled_video_width_ + 1) / 2, dst_v.get(),
+                    (scaled_video_width_ + 1) / 2, scaled_video_width_,
+                    scaled_video_height_, libyuv::kFilterBilinear);
+
+  libyuv::I420ToABGR(
+      dst_y.get(), scaled_video_width_, dst_u.get(),
+      (scaled_video_width_ + 1) / 2, dst_v.get(), (scaled_video_width_ + 1) / 2,
+      reinterpret_cast<uint8_t*>(rgba_buffer_), scaled_video_width_ * 4,
+      scaled_video_width_, scaled_video_height_);
+}
+
+Thumbnail::Thumbnail() {
+  RAND_bytes(aes128_key_, sizeof(aes128_key_));
+  RAND_bytes(aes128_iv_, sizeof(aes128_iv_));
+  std::filesystem::create_directory(image_path_);
+}
+
+Thumbnail::Thumbnail(unsigned char* aes128_key, unsigned char* aes128_iv) {
+  memcpy(aes128_key_, aes128_key, sizeof(aes128_key_));
+  memcpy(aes128_iv_, aes128_iv, sizeof(aes128_iv_));
+  std::filesystem::create_directory(image_path_);
+}
+
+Thumbnail::~Thumbnail() {
+  if (rgba_buffer_) {
+    delete[] rgba_buffer_;
+    rgba_buffer_ = nullptr;
+  }
+}
+
+int Thumbnail::SaveToThumbnail(const char* yuv420p, int width, int height,
+                               const std::string& remote_id,
+                               const std::string& host_name,
+                               const std::string& password) {
+  if (!rgba_buffer_) {
+    rgba_buffer_ = new char[thumbnail_width_ * thumbnail_height_ * 4];
+  }
+
+  if (yuv420p) {
+    ScaleYUV420pToABGR((char*)yuv420p, width, height, thumbnail_width_,
+                       thumbnail_height_, rgba_buffer_);
+
+    std::string image_name;
+    if (password.empty()) {
+      image_name = remote_id + 'N' + host_name;
+    } else {
+      // delete the file which has no password in its name
+      std::string filename_without_password = remote_id + "N" + host_name;
+      DeleteThumbnail(filename_without_password);
+
+      image_name = remote_id + 'Y' + password + host_name;
+    }
+
+    std::string ciphertext = AES_encrypt(image_name, aes128_key_, aes128_iv_);
+    std::string file_path = image_path_ + ciphertext;
+    stbi_write_png(file_path.data(), thumbnail_width_, thumbnail_height_, 4,
+                   rgba_buffer_, thumbnail_width_ * 4);
+  }
+  return 0;
+}
+
+bool LoadTextureFromMemory(const void* data, size_t data_size,
+                           SDL_Renderer* renderer, SDL_Texture** out_texture,
+                           int* out_width, int* out_height) {
+  int image_width = 0;
+  int image_height = 0;
+  int channels = 4;
+  unsigned char* image_data =
+      stbi_load_from_memory((const unsigned char*)data, (int)data_size,
+                            &image_width, &image_height, NULL, 4);
+  if (image_data == nullptr) {
+    LOG_ERROR("Failed to load image: [{}]", stbi_failure_reason());
+    return false;
+  }
+
+  // ABGR
+  SDL_Surface* surface = SDL_CreateRGBSurfaceFrom(
+      (void*)image_data, image_width, image_height, channels * 8,
+      channels * image_width, 0x000000ff, 0x0000ff00, 0x00ff0000, 0xff000000);
+  if (surface == nullptr) {
+    LOG_ERROR("Failed to create SDL surface: [{}]", SDL_GetError());
+    return false;
+  }
+
+  SDL_Texture* texture = SDL_CreateTextureFromSurface(renderer, surface);
+  if (texture == nullptr) {
+    LOG_ERROR("Failed to create SDL texture: [{}]", SDL_GetError());
+  }
+
+  *out_texture = texture;
+  *out_width = image_width;
+  *out_height = image_height;
+
+  SDL_FreeSurface(surface);
+  stbi_image_free(image_data);
+
+  return true;
+}
+
+bool LoadTextureFromFile(const char* file_name, SDL_Renderer* renderer,
+                         SDL_Texture** out_texture, int* out_width,
+                         int* out_height) {
+  std::filesystem::path file_path(file_name);
+  if (!std::filesystem::exists(file_path)) return false;
+  std::ifstream file(file_path, std::ios::binary);
+  if (!file) return false;
+  file.seekg(0, std::ios::end);
+  size_t file_size = file.tellg();
+  file.seekg(0, std::ios::beg);
+  if (file_size == -1) return false;
+  char* file_data = new char[file_size];
+  if (!file_data) return false;
+  file.read(file_data, file_size);
+  bool ret = LoadTextureFromMemory(file_data, file_size, renderer, out_texture,
+                                   out_width, out_height);
+  delete[] file_data;
+
+  return ret;
+}
+
+std::vector<std::filesystem::path> Thumbnail::FindThumbnailPath(
+    const std::filesystem::path& directory) {
+  std::vector<std::filesystem::path> thumbnails_path;
+
+  if (!std::filesystem::is_directory(directory)) {
+    LOG_ERROR("No such directory [{}]", directory.string());
+    return thumbnails_path;
+  }
+
+  thumbnails_sorted_by_write_time_.clear();
+
+  for (const auto& entry : std::filesystem::directory_iterator(directory)) {
+    if (entry.is_regular_file()) {
+      std::time_t last_write_time = std::chrono::system_clock::to_time_t(
+          time_point_cast<std::chrono::system_clock::duration>(
+              entry.last_write_time() -
+              std::filesystem::file_time_type::clock::now() +
+              std::chrono::system_clock::now()));
+
+      thumbnails_sorted_by_write_time_[last_write_time] = entry.path();
+    }
+  }
+
+  for (auto it = thumbnails_sorted_by_write_time_.rbegin();
+       it != thumbnails_sorted_by_write_time_.rend(); ++it) {
+    thumbnails_path.push_back(it->second);
+  }
+
+  return thumbnails_path;
+}
+
+int Thumbnail::LoadThumbnail(SDL_Renderer* renderer,
+                             std::map<std::string, SDL_Texture*>& textures,
+                             int* width, int* height) {
+  for (auto& it : textures) {
+    if (it.second != nullptr) {
+      SDL_DestroyTexture(it.second);
+      it.second = nullptr;
+    }
+  }
+  textures.clear();
+
+  std::vector<std::filesystem::path> image_paths =
+      FindThumbnailPath(image_path_);
+
+  if (image_paths.size() == 0) {
+    return -1;
+  } else {
+    for (int i = 0; i < image_paths.size(); i++) {
+      size_t pos1 = image_paths[i].string().find('/') + 1;
+      std::string cipher_image_name = image_paths[i].string().substr(pos1);
+      std::string original_image_name =
+          AES_decrypt(cipher_image_name, aes128_key_, aes128_iv_);
+      std::string image_path = image_path_ + cipher_image_name;
+      textures[original_image_name] = nullptr;
+      LoadTextureFromFile(image_path.c_str(), renderer,
+                          &(textures[original_image_name]), width, height);
+    }
+    return 0;
+  }
+  return 0;
+}
+
+int Thumbnail::DeleteThumbnail(const std::string& file_name) {
+  std::string ciphertext = AES_encrypt(file_name, aes128_key_, aes128_iv_);
+  std::string file_path = image_path_ + ciphertext;
+  if (std::filesystem::exists(file_path)) {
+    std::filesystem::remove(file_path);
+    return 0;
+  } else {
+    return -1;
+  }
+}
+
+int Thumbnail::DeleteAllFilesInDirectory() {
+  if (std::filesystem::exists(image_path_) &&
+      std::filesystem::is_directory(image_path_)) {
+    for (const auto& entry : std::filesystem::directory_iterator(image_path_)) {
+      if (std::filesystem::is_regular_file(entry.status())) {
+        std::filesystem::remove(entry.path());
+      }
+    }
+    return 0;
+  }
+  return -1;
+}
+
+std::string Thumbnail::AES_encrypt(const std::string& plaintext,
+                                   unsigned char* key, unsigned char* iv) {
+  EVP_CIPHER_CTX* ctx;
+  int len;
+  int ciphertext_len;
+  int ret = 0;
+  std::vector<unsigned char> ciphertext(plaintext.size() + AES_BLOCK_SIZE);
+
+  ctx = EVP_CIPHER_CTX_new();
+  if (!ctx) {
+    LOG_ERROR("Error in EVP_CIPHER_CTX_new");
+    return plaintext;
+  }
+
+  ret = EVP_EncryptInit_ex(ctx, EVP_aes_128_cbc(), NULL, key, iv);
+  if (1 != ret) {
+    LOG_ERROR("Error in EVP_EncryptInit_ex");
+    EVP_CIPHER_CTX_free(ctx);
+    return plaintext;
+  }
+
+  ret = EVP_EncryptUpdate(
+      ctx, ciphertext.data(), &len,
+      reinterpret_cast<const unsigned char*>(plaintext.data()),
+      (int)plaintext.size());
+  if (1 != ret) {
+    LOG_ERROR("Error in EVP_EncryptUpdate");
+    EVP_CIPHER_CTX_free(ctx);
+    return plaintext;
+  }
+
+  ciphertext_len = len;
+  ret = EVP_EncryptFinal_ex(ctx, ciphertext.data() + len, &len);
+  if (1 != ret) {
+    LOG_ERROR("Error in EVP_EncryptFinal_ex");
+    EVP_CIPHER_CTX_free(ctx);
+    return plaintext;
+  }
+
+  ciphertext_len += len;
+
+  unsigned char hex_str[256];
+  size_t hex_str_len = 0;
+  ret = OPENSSL_buf2hexstr_ex((char*)hex_str, sizeof(hex_str), &hex_str_len,
+                              ciphertext.data(), ciphertext_len, '\0');
+  if (1 != ret) {
+    LOG_ERROR("Error in OPENSSL_buf2hexstr_ex");
+    EVP_CIPHER_CTX_free(ctx);
+    return plaintext;
+  }
+
+  EVP_CIPHER_CTX_free(ctx);
+
+  std::string str(reinterpret_cast<char*>(hex_str), hex_str_len);
+  return str;
+}
+
+std::string Thumbnail::AES_decrypt(const std::string& ciphertext,
+                                   unsigned char* key, unsigned char* iv) {
+  unsigned char ciphertext_buf[256];
+  size_t ciphertext_buf_len = 0;
+  unsigned char plaintext[256];
+  int plaintext_len = 0;
+  int plaintext_final_len = 0;
+  EVP_CIPHER_CTX* ctx;
+  int ret = 0;
+
+  ret = OPENSSL_hexstr2buf_ex(ciphertext_buf, sizeof(ciphertext_buf),
+                              &ciphertext_buf_len, ciphertext.c_str(), '\0');
+  if (1 != ret) {
+    LOG_ERROR("Error in OPENSSL_hexstr2buf_ex");
+    return ciphertext;
+  }
+
+  ctx = EVP_CIPHER_CTX_new();
+  if (!ctx) {
+    LOG_ERROR("Error in EVP_CIPHER_CTX_new");
+    return ciphertext;
+  }
+
+  ret = EVP_DecryptInit_ex(ctx, EVP_aes_128_cbc(), NULL, key, iv);
+  if (1 != ret) {
+    LOG_ERROR("Error in EVP_DecryptInit_ex");
+
+    EVP_CIPHER_CTX_free(ctx);
+    return ciphertext;
+  }
+
+  ret = EVP_DecryptUpdate(ctx, plaintext, &plaintext_len, ciphertext_buf,
+                          (int)ciphertext_buf_len);
+  if (1 != ret) {
+    LOG_ERROR("Error in EVP_DecryptUpdate");
+
+    EVP_CIPHER_CTX_free(ctx);
+    return ciphertext;
+  }
+
+  ret =
+      EVP_DecryptFinal_ex(ctx, plaintext + plaintext_len, &plaintext_final_len);
+  if (1 != ret) {
+    LOG_ERROR("Error in EVP_DecryptFinal_ex");
+
+    EVP_CIPHER_CTX_free(ctx);
+    return ciphertext;
+  }
+  plaintext_len += plaintext_final_len;
+
+  EVP_CIPHER_CTX_free(ctx);
+
+  return std::string(reinterpret_cast<char*>(plaintext), plaintext_len);
+}

src/single_window/thumbnail.h

@@ -0,0 +1,74 @@
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2024-11-07
+ * Copyright (c) 2024 by DI JUNKUN, All Rights Reserved.
+ */
+
+#ifndef _THUMBNAIL_H_
+#define _THUMBNAIL_H_
+
+#include <SDL.h>
+
+#include <filesystem>
+#include <map>
+
+class Thumbnail {
+ public:
+  Thumbnail();
+  explicit Thumbnail(unsigned char* aes128_key, unsigned char* aes128_iv);
+  ~Thumbnail();
+
+ public:
+  int SaveToThumbnail(const char* yuv420p, int width, int height,
+                      const std::string& remote_id,
+                      const std::string& host_name,
+                      const std::string& password);
+
+  int LoadThumbnail(SDL_Renderer* renderer,
+                    std::map<std::string, SDL_Texture*>& textures, int* width,
+                    int* height);
+
+  int DeleteThumbnail(const std::string& file_name);
+
+  int DeleteAllFilesInDirectory();
+
+  int GetKey(unsigned char* aes128_key) {
+    memcpy(aes128_key, aes128_key_, sizeof(aes128_key_));
+    return sizeof(aes128_key_);
+  }
+
+  int GetIv(unsigned char* aes128_iv) {
+    memcpy(aes128_iv, aes128_iv_, sizeof(aes128_iv_));
+    return sizeof(aes128_iv_);
+  }
+
+  int GetKeyAndIv(unsigned char* aes128_key, unsigned char* aes128_iv) {
+    memcpy(aes128_key, aes128_key_, sizeof(aes128_key_));
+    memcpy(aes128_iv, aes128_iv_, sizeof(aes128_iv_));
+    return 0;
+  }
+
+ private:
+  std::vector<std::filesystem::path> FindThumbnailPath(
+      const std::filesystem::path& directory);
+
+  std::string AES_encrypt(const std::string& plaintext, unsigned char* key,
+                          unsigned char* iv);
+
+  std::string AES_decrypt(const std::string& ciphertext, unsigned char* key,
+                          unsigned char* iv);
+
+ private:
+  int thumbnail_width_ = 160;
+  int thumbnail_height_ = 90;
+  char* rgba_buffer_ = nullptr;
+  std::string image_path_ = "thumbnails/";
+  std::map<std::time_t, std::filesystem::path> thumbnails_sorted_by_write_time_;
+
+  unsigned char aes128_key_[16];
+  unsigned char aes128_iv_[16];
+  unsigned char ciphertext_[64];
+  unsigned char decryptedtext_[64];
+};
+
+#endif

src/single_window/title_bar.cpp

@@ -0,0 +1,164 @@
+#include "localization.h"
+#include "render.h"
+
+#define BUTTON_PADDING 36.0f
+
+int Render::TitleBar(bool main_window) {
+  ImGui::PushStyleColor(ImGuiCol_MenuBarBg, ImVec4(1.0f, 1.0f, 1.0f, 0.0f));
+  ImGui::PushStyleColor(ImGuiCol_ChildBg, ImVec4(1.0f, 1.0f, 1.0f, 1.0f));
+  ImGui::SetNextWindowPos(ImVec2(0, 0), ImGuiCond_Always);
+  ImGui::SetWindowFontScale(0.8f);
+  ImGui::BeginChild(
+      main_window ? "MainTitleBar" : "StreamTitleBar",
+      ImVec2(main_window ? main_window_width_ : stream_window_width_,
+             title_bar_height_),
+      ImGuiChildFlags_Border,
+      ImGuiWindowFlags_MenuBar | ImGuiWindowFlags_NoDecoration |
+          ImGuiWindowFlags_NoBringToFrontOnFocus);
+  ImGui::SetWindowFontScale(1.0f);
+  ImGui::PopStyleColor();
+
+  ImDrawList* draw_list = ImGui::GetWindowDrawList();
+  if (ImGui::BeginMenuBar()) {
+    ImGui::SetCursorPosX(
+        (main_window ? main_window_width_ : stream_window_width_) -
+        (BUTTON_PADDING * 3 - 3));
+    ImGui::PushStyleColor(ImGuiCol_HeaderHovered, ImVec4(0, 0, 0, 0.1f));
+    ImGui::PushStyleColor(ImGuiCol_HeaderActive,
+                          ImVec4(1.0f, 1.0f, 1.0f, 1.0f));
+    if (main_window) {
+      float bar_pos_x = ImGui::GetCursorPosX() + 6;
+      float bar_pos_y = ImGui::GetCursorPosY() + 15;
+      std::string menu_button = "    ";  // ICON_FA_BARS;
+      if (ImGui::BeginMenu(menu_button.c_str())) {
+        ImGui::SetWindowFontScale(0.5f);
+        if (ImGui::MenuItem(
+                localization::settings[localization_language_index_].c_str())) {
+          show_settings_window_ = true;
+        }
+        if (ImGui::MenuItem(
+                localization::about[localization_language_index_].c_str())) {
+          show_about_window_ = true;
+        }
+        ImGui::SetWindowFontScale(1.0f);
+        ImGui::EndMenu();
+      }
+      float menu_bar_line_size = 15.0f;
+      draw_list->AddLine(ImVec2(bar_pos_x, bar_pos_y - 6),
+                         ImVec2(bar_pos_x + menu_bar_line_size, bar_pos_y - 6),
+                         IM_COL32(0, 0, 0, 255));
+      draw_list->AddLine(ImVec2(bar_pos_x, bar_pos_y),
+                         ImVec2(bar_pos_x + menu_bar_line_size, bar_pos_y),
+                         IM_COL32(0, 0, 0, 255));
+      draw_list->AddLine(ImVec2(bar_pos_x, bar_pos_y + 6),
+                         ImVec2(bar_pos_x + menu_bar_line_size, bar_pos_y + 6),
+                         IM_COL32(0, 0, 0, 255));
+
+      {
+        SettingWindow();
+        AboutWindow();
+      }
+    }
+
+    ImGui::PopStyleColor(2);
+
+    ImGui::PushStyleColor(ImGuiCol_Button, ImVec4(0, 0, 0, 0));
+    ImGui::SetCursorPosX(main_window
+                             ? (main_window_width_ - BUTTON_PADDING * 2)
+                             : (stream_window_width_ - BUTTON_PADDING * 3));
+    ImGui::PushStyleColor(ImGuiCol_ButtonHovered, ImVec4(0, 0, 0, 0.1f));
+    ImGui::PushStyleColor(ImGuiCol_ButtonActive,
+                          ImVec4(1.0f, 1.0f, 1.0f, 1.0f));
+
+    float minimize_pos_x = ImGui::GetCursorPosX() + 12;
+    float minimize_pos_y = ImGui::GetCursorPosY() + 15;
+    std::string window_minimize_button = "##minimize";  // ICON_FA_MINUS;
+    if (ImGui::Button(window_minimize_button.c_str(),
+                      ImVec2(BUTTON_PADDING, 30))) {
+      SDL_MinimizeWindow(main_window ? main_window_ : stream_window_);
+    }
+    draw_list->AddLine(ImVec2(minimize_pos_x, minimize_pos_y),
+                       ImVec2(minimize_pos_x + 12, minimize_pos_y),
+                       IM_COL32(0, 0, 0, 255));
+    ImGui::PopStyleColor(2);
+
+    if (!main_window) {
+      ImGui::SetCursorPosX(stream_window_width_ - BUTTON_PADDING * 2);
+      ImGui::PushStyleColor(ImGuiCol_ButtonHovered, ImVec4(0, 0, 0, 0.1f));
+      ImGui::PushStyleColor(ImGuiCol_ButtonActive,
+                            ImVec4(1.0f, 1.0f, 1.0f, 1.0f));
+
+      if (window_maximized_) {
+        float pos_x_top = ImGui::GetCursorPosX() + 11;
+        float pos_y_top = ImGui::GetCursorPosY() + 11;
+        float pos_x_bottom = ImGui::GetCursorPosX() + 13;
+        float pos_y_bottom = ImGui::GetCursorPosY() + 9;
+        std::string window_restore_button =
+            "##restore";  // ICON_FA_WINDOW_RESTORE;
+        if (ImGui::Button(window_restore_button.c_str(),
+                          ImVec2(BUTTON_PADDING, 30))) {
+          SDL_RestoreWindow(stream_window_);
+          window_maximized_ = false;
+        }
+        draw_list->AddRect(ImVec2(pos_x_top, pos_y_top),
+                           ImVec2(pos_x_top + 12, pos_y_top + 12),
+                           IM_COL32(0, 0, 0, 255));
+        draw_list->AddRect(ImVec2(pos_x_bottom, pos_y_bottom),
+                           ImVec2(pos_x_bottom + 12, pos_y_bottom + 12),
+                           IM_COL32(0, 0, 0, 255));
+        draw_list->AddRectFilled(ImVec2(pos_x_top + 1, pos_y_top + 1),
+                                 ImVec2(pos_x_top + 11, pos_y_top + 11),
+                                 IM_COL32(255, 255, 255, 255));
+      } else {
+        float maximize_pos_x = ImGui::GetCursorPosX() + 12;
+        float maximize_pos_y = ImGui::GetCursorPosY() + 10;
+        std::string window_maximize_button =
+            "##maximize";  // ICON_FA_SQUARE_FULL;
+        if (ImGui::Button(window_maximize_button.c_str(),
+                          ImVec2(BUTTON_PADDING, 30))) {
+          SDL_MaximizeWindow(stream_window_);
+          window_maximized_ = !window_maximized_;
+        }
+        draw_list->AddRect(ImVec2(maximize_pos_x, maximize_pos_y),
+                           ImVec2(maximize_pos_x + 12, maximize_pos_y + 12),
+                           IM_COL32(0, 0, 0, 255));
+      }
+      ImGui::PopStyleColor(2);
+    }
+
+    ImGui::SetCursorPosX(
+        (main_window ? main_window_width_ : stream_window_width_) -
+        BUTTON_PADDING);
+    ImGui::PushStyleColor(ImGuiCol_ButtonHovered, ImVec4(1.0f, 0, 0, 1.0f));
+    ImGui::PushStyleColor(ImGuiCol_ButtonActive, ImVec4(1.0f, 0, 0, 0.5f));
+
+    float xmark_pos_x = ImGui::GetCursorPosX() + 18;
+    float xmark_pos_y = ImGui::GetCursorPosY() + 16;
+    float xmark_size = 12.0f;
+    std::string close_button = "##xmark";  // ICON_FA_XMARK;
+    if (ImGui::Button(close_button.c_str(), ImVec2(BUTTON_PADDING, 30))) {
+      SDL_Event event;
+      event.type = SDL_QUIT;
+      SDL_PushEvent(&event);
+    }
+    draw_list->AddLine(ImVec2(xmark_pos_x - xmark_size / 2 - 0.25f,
+                              xmark_pos_y - xmark_size / 2 + 0.75f),
+                       ImVec2(xmark_pos_x + xmark_size / 2 - 1.5f,
+                              xmark_pos_y + xmark_size / 2 - 0.5f),
+                       IM_COL32(0, 0, 0, 255));
+    draw_list->AddLine(ImVec2(xmark_pos_x + xmark_size / 2 - 1.75f,
+                              xmark_pos_y - xmark_size / 2 + 0.75f),
+                       ImVec2(xmark_pos_x - xmark_size / 2,
+                              xmark_pos_y + xmark_size / 2 - 1.0f),
+                       IM_COL32(0, 0, 0, 255));
+
+    ImGui::PopStyleColor(2);
+
+    ImGui::PopStyleColor();
+  }
+
+  ImGui::EndMenuBar();
+  ImGui::EndChild();
+  ImGui::PopStyleColor();
+  return 0;
+}

src/speaker_capturer/linux/speaker_capturer_linux.cpp

@@ -0,0 +1,13 @@
+#include "speaker_capturer_linux.h"
+
+SpeakerCapturerLinux::SpeakerCapturerLinux() {}
+
+SpeakerCapturerLinux::~SpeakerCapturerLinux() {}
+
+int SpeakerCapturerLinux::Init(speaker_data_cb cb) { return 0; }
+int SpeakerCapturerLinux::Destroy() { return 0; }
+int SpeakerCapturerLinux::Start() { return 0; }
+int SpeakerCapturerLinux::Stop() { return 0; }
+
+int SpeakerCapturerLinux::Pause() { return 0; }
+int SpeakerCapturerLinux::Resume() { return 0; }

src/speaker_capturer/linux/speaker_capturer_linux.h

@@ -0,0 +1,38 @@
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2024-08-02
+ * Copyright (c) 2024 by DI JUNKUN, All Rights Reserved.
+ */
+
+#ifndef _SPEAKER_CAPTURER_LINUX_H_
+#define _SPEAKER_CAPTURER_LINUX_H_
+
+#include <thread>
+#include <vector>
+
+#include "speaker_capturer.h"
+
+class SpeakerCapturerLinux : public SpeakerCapturer {
+ public:
+  SpeakerCapturerLinux();
+  ~SpeakerCapturerLinux();
+
+ public:
+  virtual int Init(speaker_data_cb cb);
+  virtual int Destroy();
+  virtual int Start();
+  virtual int Stop();
+
+  int Pause();
+  int Resume();
+
+ private:
+  speaker_data_cb cb_ = nullptr;
+
+ private:
+  bool inited_ = false;
+  // thread
+  std::thread capture_thread_;
+};
+
+#endif

src/speaker_capturer/macosx/speaker_capturer_macosx.cpp

@@ -0,0 +1,14 @@
+
+#include "speaker_capturer_macosx.h"
+
+SpeakerCapturerMacosx::SpeakerCapturerMacosx() {}
+
+SpeakerCapturerMacosx::~SpeakerCapturerMacosx() {}
+
+int SpeakerCapturerMacosx::Init(speaker_data_cb cb) { return 0; }
+int SpeakerCapturerMacosx::Destroy() { return 0; }
+int SpeakerCapturerMacosx::Start() { return 0; }
+int SpeakerCapturerMacosx::Stop() { return 0; }
+
+int SpeakerCapturerMacosx::Pause() { return 0; }
+int SpeakerCapturerMacosx::Resume() { return 0; }

src/speaker_capturer/macosx/speaker_capturer_macosx.h

@@ -0,0 +1,38 @@
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2024-08-02
+ * Copyright (c) 2024 by DI JUNKUN, All Rights Reserved.
+ */
+
+#ifndef _SPEAKER_CAPTURER_MACOSX_H_
+#define _SPEAKER_CAPTURER_MACOSX_H_
+
+#include <thread>
+#include <vector>
+
+#include "speaker_capturer.h"
+
+class SpeakerCapturerMacosx : public SpeakerCapturer {
+ public:
+  SpeakerCapturerMacosx();
+  ~SpeakerCapturerMacosx();
+
+ public:
+  virtual int Init(speaker_data_cb cb);
+  virtual int Destroy();
+  virtual int Start();
+  virtual int Stop();
+
+  int Pause();
+  int Resume();
+
+ private:
+  speaker_data_cb cb_ = nullptr;
+
+ private:
+  bool inited_ = false;
+  // thread
+  std::thread capture_thread_;
+};
+
+#endif

src/speaker_capturer/speaker_capturer.h

@@ -0,0 +1,26 @@
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2024-07-22
+ * Copyright (c) 2024 by DI JUNKUN, All Rights Reserved.
+ */
+
+#ifndef _SPEAKER_CAPTURER_H_
+#define _SPEAKER_CAPTURER_H_
+
+#include <functional>
+
+class SpeakerCapturer {
+ public:
+  typedef std::function<void(unsigned char *, size_t)> speaker_data_cb;
+
+ public:
+  virtual ~SpeakerCapturer() {}
+
+ public:
+  virtual int Init(speaker_data_cb cb) = 0;
+  virtual int Destroy() = 0;
+  virtual int Start() = 0;
+  virtual int Stop() = 0;
+};
+
+#endif

src/speaker_capturer/speaker_capturer_factory.h

@@ -0,0 +1,36 @@
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2024-07-22
+ * Copyright (c) 2024 by DI JUNKUN, All Rights Reserved.
+ */
+
+#ifndef _SPEAKER_CAPTURER_FACTORY_H_
+#define _SPEAKER_CAPTURER_FACTORY_H_
+
+#ifdef _WIN32
+#include "speaker_capturer_wasapi.h"
+#elif __linux__
+#include "speaker_capturer_linux.h"
+#elif __APPLE__
+#include "speaker_capturer_macosx.h"
+#endif
+
+class SpeakerCapturerFactory {
+ public:
+  virtual ~SpeakerCapturerFactory() {}
+
+ public:
+  SpeakerCapturer* Create() {
+#ifdef _WIN32
+    return new SpeakerCapturerWasapi();
+#elif __linux__
+    return new SpeakerCapturerLinux();
+#elif __APPLE__
+    return new SpeakerCapturerMacosx();
+#else
+    return nullptr;
+#endif
+  }
+};
+
+#endif

src/speaker_capturer/windows/speaker_capturer_wasapi.cpp

@@ -0,0 +1,100 @@
+#include "speaker_capturer_wasapi.h"
+
+#include "rd_log.h"
+
+#define MINIAUDIO_IMPLEMENTATION
+#include "miniaudio.h"
+
+#define SAVE_AUDIO_FILE 0
+
+static ma_device_config device_config_;
+static ma_device device_;
+static ma_format format_ = ma_format_s16;
+static ma_uint32 sample_rate_ = ma_standard_sample_rate_48000;
+static ma_uint32 channels_ = 1;
+static FILE* fp_ = nullptr;
+
+void data_callback(ma_device* pDevice, void* pOutput, const void* pInput,
+                   ma_uint32 frameCount) {
+  SpeakerCapturerWasapi* ptr = (SpeakerCapturerWasapi*)pDevice->pUserData;
+  if (ptr) {
+    if (SAVE_AUDIO_FILE) {
+      fwrite(pInput, frameCount * ma_get_bytes_per_frame(format_, channels_), 1,
+             fp_);
+    }
+
+    ptr->GetCallback()((unsigned char*)pInput,
+                       frameCount * ma_get_bytes_per_frame(format_, channels_));
+  }
+
+  (void)pOutput;
+}
+
+SpeakerCapturerWasapi::speaker_data_cb SpeakerCapturerWasapi::GetCallback() {
+  return cb_;
+}
+
+SpeakerCapturerWasapi::SpeakerCapturerWasapi() {}
+
+SpeakerCapturerWasapi::~SpeakerCapturerWasapi() {
+  if (SAVE_AUDIO_FILE) {
+    fclose(fp_);
+  }
+}
+
+int SpeakerCapturerWasapi::Init(speaker_data_cb cb) {
+  if (inited_) {
+    return 0;
+  }
+
+  cb_ = cb;
+
+  if (SAVE_AUDIO_FILE) {
+    fopen_s(&fp_, "system_audio.pcm", "wb");
+  }
+
+  ma_result result;
+  ma_backend backends[] = {ma_backend_wasapi};
+
+  device_config_ = ma_device_config_init(ma_device_type_loopback);
+  device_config_.capture.pDeviceID = NULL;
+  device_config_.capture.format = format_;
+  device_config_.capture.channels = channels_;
+  device_config_.sampleRate = sample_rate_;
+  device_config_.dataCallback = data_callback;
+  device_config_.pUserData = this;
+
+  result = ma_device_init_ex(backends, sizeof(backends) / sizeof(backends[0]),
+                             NULL, &device_config_, &device_);
+  if (result != MA_SUCCESS) {
+    LOG_ERROR("Failed to initialize loopback device");
+    return -1;
+  }
+
+  inited_ = true;
+
+  return 0;
+}
+
+int SpeakerCapturerWasapi::Start() {
+  ma_result result = ma_device_start(&device_);
+  if (result != MA_SUCCESS) {
+    ma_device_uninit(&device_);
+    LOG_ERROR("Failed to start device");
+    return -1;
+  }
+
+  return 0;
+}
+
+int SpeakerCapturerWasapi::Stop() {
+  ma_device_stop(&device_);
+  return 0;
+}
+
+int SpeakerCapturerWasapi::Destroy() {
+  ma_device_uninit(&device_);
+  return 0;
+}
+
+int SpeakerCapturerWasapi::Pause() { return 0; }

src/speaker_capturer/windows/speaker_capturer_wasapi.h

@@ -0,0 +1,35 @@
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2024-08-15
+ * Copyright (c) 2024 by DI JUNKUN, All Rights Reserved.
+ */
+
+#ifndef _SPEAKER_CAPTURER_WASAPI_H_
+#define _SPEAKER_CAPTURER_WASAPI_H_
+
+#include "speaker_capturer.h"
+
+class SpeakerCapturerWasapi : public SpeakerCapturer {
+ public:
+  SpeakerCapturerWasapi();
+  ~SpeakerCapturerWasapi();
+
+ public:
+  virtual int Init(speaker_data_cb cb);
+  virtual int Destroy();
+  virtual int Start();
+  virtual int Stop();
+
+  int Pause();
+  int Resume();
+
+  speaker_data_cb GetCallback();
+
+ private:
+  speaker_data_cb cb_ = nullptr;
+
+ private:
+  bool inited_ = false;
+};
+
+#endif

test/audio_capture/audio_capture_wasapi.cpp

@@ -0,0 +1,303 @@
+// MyAudioSink.cpp : 定义控制台应用程序的入口点。
+//
+
+// #define  _CRT_SECURE_NO_WARNINGS
+
+#include <Audioclient.h>
+#include <Devicetopology.h>
+#include <Endpointvolume.h>
+#include <Mmdeviceapi.h>
+#include <tchar.h>
+
+#include <iostream>
+//-----------------------------------------------------------
+// Record an audio stream from the default audio capture
+// device. The RecordAudioStream function allocates a shared
+// buffer big enough to hold one second of PCM audio data.
+// The function uses this buffer to stream data from the
+// capture device. The main loop runs every 1/2 second.
+//-----------------------------------------------------------
+
+// REFERENCE_TIME time units per second and per millisecond
+#define REFTIMES_PER_SEC 10000000
+#define REFTIMES_PER_MILLISEC 10000
+
+#define EXIT_ON_ERROR(hres) \
+  if (FAILED(hres)) {       \
+    goto Exit;              \
+  }
+
+#define SAFE_RELEASE(punk) \
+  if ((punk) != NULL) {    \
+    (punk)->Release();     \
+    (punk) = NULL;         \
+  }
+
+#define IS_INPUT_DEVICE 0  // 切换输入和输出音频设备
+
+#define BUFFER_TIME_100NS (5 * 10000000)
+
+const CLSID CLSID_MMDeviceEnumerator = __uuidof(MMDeviceEnumerator);
+const IID IID_IMMDeviceEnumerator = __uuidof(IMMDeviceEnumerator);
+const IID IID_IAudioClient = __uuidof(IAudioClient);
+const IID IID_IAudioCaptureClient = __uuidof(IAudioCaptureClient);
+
+const IID IID_IDeviceTopology = __uuidof(IDeviceTopology);
+const IID IID_IAudioVolumeLevel = __uuidof(IAudioVolumeLevel);
+const IID IID_IPart = __uuidof(IPart);
+const IID IID_IConnector = __uuidof(IConnector);
+const IID IID_IAudioEndpointVolume = __uuidof(IAudioEndpointVolume);
+
+class MyAudioSink {
+ public:
+  // WAVEFORMATEX *pwfx = NULL;
+  int SetFormat(WAVEFORMATEX *pwfx);
+
+  int CopyData(SHORT *pData, UINT32 numFramesAvailable, BOOL *pbDone);
+};
+
+int MyAudioSink::SetFormat(WAVEFORMATEX *pwfx) {
+  printf("wFormatTag is %x\n", pwfx->wFormatTag);
+  printf("nChannels is %x\n", pwfx->nChannels);
+  printf("nSamplesPerSec is %d\n", pwfx->nSamplesPerSec);
+  printf("nAvgBytesPerSec is %d\n", pwfx->nAvgBytesPerSec);
+  printf("wBitsPerSample is %d\n", pwfx->wBitsPerSample);
+
+  return 0;
+}
+
+FILE *fp;
+
+int MyAudioSink::CopyData(SHORT *pData, UINT32 numFramesAvailable,
+                          BOOL *pbDone) {
+  if (pData != NULL) {
+    size_t t = sizeof(SHORT);
+    for (int i = 0; i < numFramesAvailable / t; i++) {
+      double dbVal = pData[i];
+      pData[i] = dbVal;  // 可以通过不同的分母来控制声音大小
+    }
+    fwrite(pData, numFramesAvailable, 1, fp);
+  }
+
+  return 0;
+}
+
+/// pwfx->nSamplesPerSec    = 44100;
+/// 不支持修改采样率， 看来只能等得到数据之后再 swr 转换了
+BOOL AdjustFormatTo16Bits(WAVEFORMATEX *pwfx) {
+  BOOL bRet(FALSE);
+
+  if (pwfx->wFormatTag == WAVE_FORMAT_IEEE_FLOAT) {
+    pwfx->wFormatTag = WAVE_FORMAT_PCM;
+    pwfx->wBitsPerSample = 16;
+    pwfx->nBlockAlign = pwfx->nChannels * pwfx->wBitsPerSample / 8;
+    pwfx->nAvgBytesPerSec = pwfx->nBlockAlign * pwfx->nSamplesPerSec;
+
+    bRet = TRUE;
+  } else if (pwfx->wFormatTag == WAVE_FORMAT_EXTENSIBLE) {
+    PWAVEFORMATEXTENSIBLE pEx = reinterpret_cast<PWAVEFORMATEXTENSIBLE>(pwfx);
+    if (IsEqualGUID(KSDATAFORMAT_SUBTYPE_IEEE_FLOAT, pEx->SubFormat)) {
+      pEx->SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
+      pEx->Samples.wValidBitsPerSample = 16;
+      pwfx->wBitsPerSample = 16;
+      pwfx->nBlockAlign = pwfx->nChannels * pwfx->wBitsPerSample / 8;
+      pwfx->nAvgBytesPerSec = pwfx->nBlockAlign * pwfx->nSamplesPerSec;
+
+      bRet = TRUE;
+    }
+  }
+
+  return bRet;
+}
+
+typedef unsigned long long uint64_t;
+static bool have_clockfreq = false;
+static LARGE_INTEGER clock_freq;
+static inline uint64_t get_clockfreq(void) {
+  if (!have_clockfreq) QueryPerformanceFrequency(&clock_freq);
+  return clock_freq.QuadPart;
+}
+uint64_t os_gettime_ns(void) {
+  LARGE_INTEGER current_time;
+  double time_val;
+
+  QueryPerformanceCounter(&current_time);
+  time_val = (double)current_time.QuadPart;
+  time_val *= 1000000000.0;
+  time_val /= (double)get_clockfreq();
+
+  return (uint64_t)time_val;
+}
+
+HRESULT RecordAudioStream(MyAudioSink *pMySink) {
+  HRESULT hr;
+  REFERENCE_TIME hnsActualDuration;
+  UINT32 bufferFrameCount;
+  UINT32 numFramesAvailable;
+  BYTE *pData;
+  DWORD flags;
+  REFERENCE_TIME hnsDefaultDevicePeriod(0);
+
+  REFERENCE_TIME hnsRequestedDuration = REFTIMES_PER_SEC;
+  IMMDeviceEnumerator *pEnumerator = NULL;
+  IMMDevice *pDevice = NULL;
+  IAudioClient *pAudioClient = NULL;
+  IAudioCaptureClient *pCaptureClient = NULL;
+  WAVEFORMATEX *pwfx = NULL;
+  UINT32 packetLength = 0;
+  BOOL bDone = FALSE;
+  HANDLE hTimerWakeUp = NULL;
+  UINT64 pos, ts;
+
+  hr = CoCreateInstance(CLSID_MMDeviceEnumerator, NULL, CLSCTX_ALL,
+                        IID_IMMDeviceEnumerator, (void **)&pEnumerator);
+
+  EXIT_ON_ERROR(hr)
+
+  if (IS_INPUT_DEVICE)
+    hr = pEnumerator->GetDefaultAudioEndpoint(eCapture, eCommunications,
+                                              &pDevice);  // 输入
+  else
+    hr = pEnumerator->GetDefaultAudioEndpoint(eRender, eConsole,
+                                              &pDevice);  // 输出
+
+  // wchar_t *w_id;
+  // os_utf8_to_wcs_ptr(device_id.c_str(), device_id.size(), &w_id);
+  // hr = pEnumerator->GetDevice(w_id, &pDevice);
+  // bfree(w_id);
+
+  EXIT_ON_ERROR(hr)
+
+  hr = pDevice->Activate(IID_IAudioClient, CLSCTX_ALL, NULL,
+                         (void **)&pAudioClient);
+
+  EXIT_ON_ERROR(hr)
+
+  hr = pAudioClient->GetMixFormat(&pwfx);
+
+  EXIT_ON_ERROR(hr)
+
+  // The GetDevicePeriod method retrieves the length of the periodic interval
+  // separating successive processing passes by the audio engine on the data in
+  // the endpoint buffer.
+  hr = pAudioClient->GetDevicePeriod(&hnsDefaultDevicePeriod, NULL);
+
+  EXIT_ON_ERROR(hr)
+
+  AdjustFormatTo16Bits(pwfx);
+
+  // 平时创建定时器使用的是WINAPI  SetTimer，不过该函数一般用于有界面的时候。
+  // 无界面的情况下，可以选择微软提供的CreateWaitableTimer和SetWaitableTimer
+  // API。
+  hTimerWakeUp = CreateWaitableTimer(NULL, FALSE, NULL);
+
+  DWORD flag;
+  if (IS_INPUT_DEVICE)
+    flag = 0;
+  else
+    flag = AUDCLNT_STREAMFLAGS_LOOPBACK;
+
+  if (IS_INPUT_DEVICE)
+    hr = pAudioClient->Initialize(AUDCLNT_SHAREMODE_SHARED, flag /*0*/, 0, 0,
+                                  pwfx, NULL);  // 输入
+  else
+    hr = pAudioClient->Initialize(AUDCLNT_SHAREMODE_SHARED, flag /*0*/, 0, 0,
+                                  pwfx, NULL);  // 输出
+
+  EXIT_ON_ERROR(hr)
+
+  // Get the size of the allocated buffer.
+  hr = pAudioClient->GetBufferSize(&bufferFrameCount);
+  EXIT_ON_ERROR(hr)
+
+  hr = pAudioClient->GetService(IID_IAudioCaptureClient,
+                                (void **)&pCaptureClient);
+
+  EXIT_ON_ERROR(hr)
+
+  LARGE_INTEGER liFirstFire;
+  liFirstFire.QuadPart =
+      -hnsDefaultDevicePeriod / 2;  // negative means relative time
+  LONG lTimeBetweenFires = (LONG)hnsDefaultDevicePeriod / 2 /
+                           (10 * 1000);  // convert to milliseconds
+
+  BOOL bOK = SetWaitableTimer(hTimerWakeUp, &liFirstFire, lTimeBetweenFires,
+                              NULL, NULL, FALSE);
+
+  // Notify the audio sink which format to use.
+  hr = pMySink->SetFormat(pwfx);
+  EXIT_ON_ERROR(hr)
+
+  // Calculate the actual duration of the allocated buffer.
+  hnsActualDuration =
+      (double)REFTIMES_PER_SEC * bufferFrameCount / pwfx->nSamplesPerSec;
+
+  /*************************************************************/
+  hr = pAudioClient->Start();  // Start recording.
+  EXIT_ON_ERROR(hr)
+  HANDLE waitArray[1] = {/*htemp hEventStop,*/ hTimerWakeUp};
+
+  // Each loop fills about half of the shared buffer.
+  while (bDone == FALSE) {
+    // Sleep for half the buffer duration.
+    // Sleep(hnsActualDuration/REFTIMES_PER_MILLISEC/2);//这句貌似不加也可以
+    // WaitForSingleObject(hTimerWakeUp,INFINITE);
+    int a = sizeof(waitArray);
+    int aa = sizeof(waitArray[0]);
+    WaitForMultipleObjects(sizeof(waitArray) / sizeof(waitArray[0]), waitArray,
+                           FALSE, INFINITE);
+    // WaitForMultipleObjects(sizeof(waitArray) / sizeof(waitArray[0]),
+    // waitArray, FALSE, INFINITE);
+
+    hr = pCaptureClient->GetNextPacketSize(&packetLength);
+    EXIT_ON_ERROR(hr)
+
+    while (packetLength != 0) {
+      // Get the available data in the shared buffer.
+      hr = pCaptureClient->GetBuffer(&pData, &numFramesAvailable, &flags, NULL,
+                                     &ts);
+      ts = ts * 100;
+      uint64_t timestamp =
+          os_gettime_ns();  // ts是设备时间，timestamp是系统时间
+      EXIT_ON_ERROR(hr)
+
+      // 位运算，flags的标志符为2（静音状态）时，将pData置为NULL
+      if (flags & AUDCLNT_BUFFERFLAGS_SILENT) {
+        pData = NULL;  // Tell CopyData to write silence.
+      }
+
+      // Copy the available capture data to the audio sink.
+      hr = pMySink->CopyData((SHORT *)pData,
+                             numFramesAvailable * pwfx->nBlockAlign, &bDone);
+      EXIT_ON_ERROR(hr)
+
+      hr = pCaptureClient->ReleaseBuffer(numFramesAvailable);
+      EXIT_ON_ERROR(hr)
+
+      hr = pCaptureClient->GetNextPacketSize(&packetLength);
+      EXIT_ON_ERROR(hr)
+    }
+  }
+
+  hr = pAudioClient->Stop();  // Stop recording.
+  EXIT_ON_ERROR(hr)
+
+Exit:
+  CoTaskMemFree(pwfx);
+  SAFE_RELEASE(pEnumerator)
+  SAFE_RELEASE(pDevice)
+  SAFE_RELEASE(pAudioClient)
+  SAFE_RELEASE(pCaptureClient)
+
+  return hr;
+}
+
+int _tmain(int argc, _TCHAR *argv[]) {
+  fopen_s(&fp, "record.pcm", "wb");
+  CoInitialize(NULL);
+  MyAudioSink test;
+
+  RecordAudioStream(&test);
+
+  return 0;
+}

test/audio_capture/miniaudio.cpp

@@ -0,0 +1,96 @@
+/*
+Demonstrates how to implement loopback recording.
+
+This example simply captures data from your default playback device until you
+press Enter. The output is saved to the file specified on the command line.
+
+Loopback mode is when you record audio that is played from a given speaker. It
+is only supported on WASAPI, but can be used indirectly with PulseAudio by
+choosing the appropriate loopback device after enumeration.
+
+To use loopback mode you just need to set the device type to
+ma_device_type_loopback and set the capture device config properties. The output
+buffer in the callback will be null whereas the input buffer will be valid.
+*/
+#define MINIAUDIO_IMPLEMENTATION
+#include "miniaudio.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+
+FILE* fp;
+
+void data_callback(ma_device* pDevice, void* pOutput, const void* pInput,
+                   ma_uint32 frameCount) {
+  // ma_encoder* pEncoder = (ma_encoder*)pDevice->pUserData;
+  // MA_ASSERT(pEncoder != NULL);
+
+  // ma_encoder_write_pcm_frames(pEncoder, pInput, frameCount, NULL);
+
+  fwrite(pInput, frameCount * ma_get_bytes_per_frame(ma_format_s16, 1), 1, fp);
+
+  (void)pOutput;
+}
+
+int main(int argc, char** argv) {
+  ma_result result;
+  ma_encoder_config encoderConfig;
+  ma_encoder encoder;
+  ma_device_config deviceConfig;
+  ma_device device;
+
+  fopen_s(&fp, "miniaudio.pcm", "wb");
+
+  /* Loopback mode is currently only supported on WASAPI. */
+  ma_backend backends[] = {ma_backend_wasapi};
+
+  // if (argc < 2) {
+  //   printf("No output file.\n");
+  //   return -1;
+  // }
+
+  // encoderConfig =
+  //     ma_encoder_config_init(ma_encoding_format_wav, ma_format_s16, 1,
+  //     48000);
+
+  // if (ma_encoder_init_file(argv[1], &encoderConfig, &encoder) != MA_SUCCESS)
+  // {
+  //   printf("Failed to initialize output file.\n");
+  //   return -1;
+  // }
+
+  deviceConfig = ma_device_config_init(ma_device_type_loopback);
+  deviceConfig.capture.pDeviceID =
+      NULL; /* Use default device for this example. Set this to the ID of a
+               _playback_ device if you want to capture from a specific device.
+             */
+  deviceConfig.capture.format = ma_format_s16;
+  deviceConfig.capture.channels = 1;
+  deviceConfig.sampleRate = 48000;
+  deviceConfig.dataCallback = data_callback;
+  deviceConfig.pUserData = nullptr;
+
+  result = ma_device_init_ex(backends, sizeof(backends) / sizeof(backends[0]),
+                             NULL, &deviceConfig, &device);
+  if (result != MA_SUCCESS) {
+    printf("Failed to initialize loopback device.\n");
+    return -2;
+  }
+
+  result = ma_device_start(&device);
+  if (result != MA_SUCCESS) {
+    ma_device_uninit(&device);
+    printf("Failed to start device.\n");
+    return -3;
+  }
+
+  printf("Press Enter to stop recording...\n");
+  getchar();
+
+  fclose(fp);
+
+  ma_device_uninit(&device);
+  // ma_encoder_uninit(&encoder);
+
+  return 0;
+}

test/linux_mouse_control/mouse_control.cpp

@@ -0,0 +1,150 @@
+#include <X11/Xlib.h>
+#include <fcntl.h>
+#include <linux/uinput.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include <cstring>
+#include <iostream>
+#include <sstream>
+
+using namespace std;
+
+int fd;
+Display *dpy;
+
+void initMouse();
+void destroyMouse();
+void mouseLeftClick();
+void mouseRightClick();
+void mouseGetPosition(int &x, int &y);
+void mouseMove(int xdelta, int ydelta);
+
+void initMouse() {
+  fd = open("/dev/uinput", O_WRONLY | O_NONBLOCK);
+  ioctl(fd, UI_SET_EVBIT, EV_KEY);
+  ioctl(fd, UI_SET_KEYBIT, BTN_RIGHT);
+  ioctl(fd, UI_SET_KEYBIT, BTN_LEFT);
+  ioctl(fd, UI_SET_EVBIT, EV_ABS);
+  ioctl(fd, UI_SET_ABSBIT, ABS_X);
+  ioctl(fd, UI_SET_ABSBIT, ABS_Y);
+  ioctl(fd, UI_SET_EVBIT, EV_REL);
+
+  struct uinput_user_dev uidev;
+  memset(&uidev, 0, sizeof(uidev));
+  snprintf(uidev.name, UINPUT_MAX_NAME_SIZE, "VirtualMouse");
+  uidev.id.bustype = BUS_USB;
+  uidev.id.version = 1;
+  uidev.id.vendor = 0x1;
+  uidev.id.product = 0x1;
+  uidev.absmin[ABS_X] = 0;
+  uidev.absmax[ABS_X] = 3200;
+  uidev.absmin[ABS_Y] = 0;
+  uidev.absmax[ABS_Y] = 900;
+
+  write(fd, &uidev, sizeof(uidev));
+  ioctl(fd, UI_DEV_CREATE);
+
+  sleep(2);
+}
+
+void mouseLeftClick() {
+  struct input_event ev_click, ev_sync;
+  memset(&ev_click, 0, sizeof(ev_click));
+  memset(&ev_sync, 0, sizeof(ev_sync));
+
+  ev_click.type = EV_KEY;
+  ev_click.code = BTN_LEFT;
+  ev_click.value = 1;
+
+  // write left click event
+  write(fd, &ev_click, sizeof(ev_click));
+
+  // sync left click event
+  ev_sync.type = EV_SYN;
+  write(fd, &ev_sync, sizeof(ev_sync));
+}
+
+void mouseRightClick() {
+  struct input_event ev_click, ev_sync;
+  memset(&ev_click, 0, sizeof(ev_click));
+  memset(&ev_sync, 0, sizeof(ev_sync));
+
+  ev_click.type = EV_KEY;
+  ev_click.code = BTN_RIGHT;
+  ev_click.value = 1;
+
+  // write right click event
+  write(fd, &ev_click, sizeof(ev_click));
+
+  // sync right click event
+  ev_sync.type = EV_SYN;
+  write(fd, &ev_sync, sizeof(ev_sync));
+}
+
+void mouseSetPosition(int x, int y) {
+  struct input_event ev[2], ev_sync;
+  memset(ev, 0, sizeof(ev));
+  memset(&ev_sync, 0, sizeof(ev_sync));
+
+  ev[0].type = EV_ABS;
+  ev[0].code = ABS_X;
+  ev[0].value = x;
+  ev[1].type = EV_ABS;
+  ev[1].code = ABS_Y;
+  ev[1].value = y;
+
+  int res_w = write(fd, ev, sizeof(ev));
+
+  std::cout << "res w : " << res_w << "\n";
+
+  ev_sync.type = EV_SYN;
+  ev_sync.value = 0;
+  ev_sync.code = 0;
+  int res_ev_sync = write(fd, &ev_sync, sizeof(ev_sync));
+
+  std::cout << "res syn : " << res_ev_sync << "\n";
+}
+
+void initDisplay() { dpy = XOpenDisplay(NULL); }
+
+void destroyMouse() { ioctl(fd, UI_DEV_DESTROY); }
+
+void mouseMove(int xdelta, int ydelta) {
+  int xx, yy;
+  mouseGetPosition(xx, yy);
+
+  mouseSetPosition(xx + xdelta, yy + ydelta);
+}
+
+void mouseGetPosition(int &x, int &y) {
+  Window root, child;
+  int rootX, rootY, winX, winY;
+  unsigned int mask;
+
+  XQueryPointer(dpy, DefaultRootWindow(dpy), &root, &child, &rootX, &rootY,
+                &winX, &winY, &mask);
+
+  std::cout << "root x : " << rootX << "\n";
+  std::cout << "root y : " << rootY << "\n";
+
+  x = rootX;
+  y = rootY;
+}
+
+int main() {
+  initMouse();
+  initDisplay();
+
+  int tempx, tempy;
+
+  for (int i = 0; i < 5; ++i) {
+    mouseMove(100, 100);
+    sleep(1);
+    std::cout << "i : " << i << "\n";
+  }
+
+  destroyMouse();
+  return 0;
+}

test/screen_capture/linux_capture.cpp

@@ -228,7 +228,7 @@ int main(int argc, char *argv[]) {
   // Event Loop
   SDL_Event event;
 
-  last_frame_time = std::chrono::high_resolution_clock::now();
+  last_frame_time = std::chrono::steady_clock::now();
 
   for (;;) {
     // Wait
@@ -249,7 +249,7 @@ int main(int argc, char *argv[]) {
           }
           printf("xxxxxxxxxxxxxxxxxxx\n");
           if (!got_picture) {
-            auto now_time = std::chrono::high_resolution_clock::now();
+            auto now_time = std::chrono::steady_clock::now();
             std::chrono::duration<double> duration = now_time - last_frame_time;
             auto tc = duration.count() * 1000;
             printf("duration: %f\n", tc);

test/screen_capture/mac_capture.cpp

@@ -0,0 +1,286 @@
+#include <stdio.h>
+
+#define __STDC_CONSTANT_MACROS
+
+#ifdef _WIN32
+// Windows
+extern "C" {
+#include "SDL/SDL.h"
+#include "libavcodec/avcodec.h"
+#include "libavdevice/avdevice.h"
+#include "libavformat/avformat.h"
+#include "libswscale/swscale.h"
+};
+#else
+// Linux...
+#ifdef __cplusplus
+extern "C" {
+#endif
+#include <SDL2/SDL.h>
+#include <libavcodec/avcodec.h>
+#include <libavdevice/avdevice.h>
+#include <libavformat/avformat.h>
+#include <libswscale/swscale.h>
+#ifdef __cplusplus
+};
+#endif
+#endif
+
+// Output YUV420P
+#define OUTPUT_YUV420P 0
+//'1' Use Dshow
+//'0' Use GDIgrab
+#define USE_DSHOW 0
+
+// Refresh Event
+#define SFM_REFRESH_EVENT (SDL_USEREVENT + 1)
+
+#define SFM_BREAK_EVENT (SDL_USEREVENT + 2)
+
+int thread_exit = 0;
+
+int sfp_refresh_thread(void *opaque) {
+  thread_exit = 0;
+  while (!thread_exit) {
+    SDL_Event event;
+    event.type = SFM_REFRESH_EVENT;
+    SDL_PushEvent(&event);
+    SDL_Delay(40);
+  }
+  thread_exit = 0;
+  // Break
+  SDL_Event event;
+  event.type = SFM_BREAK_EVENT;
+  SDL_PushEvent(&event);
+
+  return 0;
+}
+
+// Show AVFoundation Device
+void show_avfoundation_device() {
+  AVFormatContext *pFormatCtx = avformat_alloc_context();
+  AVDictionary *options = NULL;
+  av_dict_set(&options, "list_devices", "true", 0);
+  AVInputFormat *iformat =
+      (AVInputFormat *)av_find_input_format("avfoundation");
+  printf("==AVFoundation Device Info===\n");
+  avformat_open_input(&pFormatCtx, "", iformat, &options);
+  printf("=============================\n");
+}
+
+int main(int argc, char *argv[]) {
+  AVFormatContext *pFormatCtx;
+  int i, videoindex;
+  AVCodecContext *pCodecCtx;
+  AVCodec *pCodec;
+
+  avformat_network_init();
+  pFormatCtx = avformat_alloc_context();
+
+  // Open File
+  // char filepath[]="src01_480x272_22.h265";
+  // avformat_open_input(&pFormatCtx,filepath,NULL,NULL)
+
+  // Register Device
+  avdevice_register_all();
+  // Windows
+#ifdef _WIN32
+#if USE_DSHOW
+  // Use dshow
+  //
+  // Need to Install screen-capture-recorder
+  // screen-capture-recorder
+  // Website: http://sourceforge.net/projects/screencapturer/
+  //
+  AVInputFormat *ifmt = av_find_input_format("dshow");
+  if (avformat_open_input(&pFormatCtx, "video=screen-capture-recorder", ifmt,
+                          NULL) != 0) {
+    printf("Couldn't open input stream.\n");
+    return -1;
+  }
+#else
+  // Use gdigrab
+  AVDictionary *options = NULL;
+  // Set some options
+  // grabbing frame rate
+  // av_dict_set(&options,"framerate","5",0);
+  // The distance from the left edge of the screen or desktop
+  // av_dict_set(&options,"offset_x","20",0);
+  // The distance from the top edge of the screen or desktop
+  // av_dict_set(&options,"offset_y","40",0);
+  // Video frame size. The default is to capture the full screen
+  // av_dict_set(&options,"video_size","640x480",0);
+  AVInputFormat *ifmt = av_find_input_format("gdigrab");
+  if (avformat_open_input(&pFormatCtx, "desktop", ifmt, &options) != 0) {
+    printf("Couldn't open input stream.\n");
+    return -1;
+  }
+
+#endif
+#elif defined linux
+  // Linux
+  AVDictionary *options = NULL;
+  // Set some options
+  // grabbing frame rate
+  // av_dict_set(&options,"framerate","5",0);
+  // Make the grabbed area follow the mouse
+  // av_dict_set(&options,"follow_mouse","centered",0);
+  // Video frame size. The default is to capture the full screen
+  // av_dict_set(&options,"video_size","640x480",0);
+  AVInputFormat *ifmt = av_find_input_format("x11grab");
+  // Grab at position 10,20
+  if (avformat_open_input(&pFormatCtx, ":0.0+10,20", ifmt, &options) != 0) {
+    printf("Couldn't open input stream.\n");
+    return -1;
+  }
+#else
+  show_avfoundation_device();
+  // Mac
+  AVInputFormat *ifmt = (AVInputFormat *)av_find_input_format("avfoundation");
+  // Avfoundation
+  //[video]:[audio]
+  if (avformat_open_input(&pFormatCtx, "1", ifmt, NULL) != 0) {
+    printf("Couldn't open input stream.\n");
+    return -1;
+  }
+#endif
+
+  if (avformat_find_stream_info(pFormatCtx, NULL) < 0) {
+    printf("Couldn't find stream information.\n");
+    return -1;
+  }
+  videoindex = -1;
+  for (i = 0; i < pFormatCtx->nb_streams; i++)
+    if (pFormatCtx->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
+      videoindex = i;
+      break;
+    }
+  if (videoindex == -1) {
+    printf("Didn't find a video stream.\n");
+    return -1;
+  }
+  pCodecCtx = pFormatCtx->streams[videoindex]->codec;
+  pCodec = avcodec_find_decoder(pCodecCtx->codec_id);
+  if (pCodec == NULL) {
+    printf("Codec not found.\n");
+    return -1;
+  }
+  if (avcodec_open2(pCodecCtx, pCodec, NULL) < 0) {
+    printf("Could not open codec.\n");
+    return -1;
+  }
+  AVFrame *pFrame, *pFrameYUV;
+  pFrame = av_frame_alloc();
+  pFrameYUV = av_frame_alloc();
+  // unsigned char *out_buffer=(unsigned char
+  // *)av_malloc(avpicture_get_size(AV_PIX_FMT_YUV420P, pCodecCtx->width,
+  // pCodecCtx->height)); avpicture_fill((AVPicture *)pFrameYUV, out_buffer,
+  // AV_PIX_FMT_YUV420P, pCodecCtx->width, pCodecCtx->height);
+  // SDL----------------------------
+  if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER)) {
+    printf("Could not initialize SDL - %s\n", SDL_GetError());
+    return -1;
+  }
+  int screen_w = 640, screen_h = 360;
+  const SDL_VideoInfo *vi = SDL_GetVideoInfo();
+  // Half of the Desktop's width and height.
+  screen_w = vi->current_w / 2;
+  screen_h = vi->current_h / 2;
+  SDL_Surface *screen;
+  screen = SDL_SetVideoMode(screen_w, screen_h, 0, 0);
+
+  if (!screen) {
+    printf("SDL: could not set video mode - exiting:%s\n", SDL_GetError());
+    return -1;
+  }
+  SDL_Overlay *bmp;
+  bmp = SDL_CreateYUVOverlay(pCodecCtx->width, pCodecCtx->height,
+                             SDL_YV12_OVERLAY, screen);
+  SDL_Rect rect;
+  rect.x = 0;
+  rect.y = 0;
+  rect.w = screen_w;
+  rect.h = screen_h;
+  // SDL End------------------------
+  int ret, got_picture;
+
+  AVPacket *packet = (AVPacket *)av_malloc(sizeof(AVPacket));
+
+#if OUTPUT_YUV420P
+  FILE *fp_yuv = fopen("output.yuv", "wb+");
+#endif
+
+  struct SwsContext *img_convert_ctx;
+  img_convert_ctx = sws_getContext(
+      pCodecCtx->width, pCodecCtx->height, pCodecCtx->pix_fmt, pCodecCtx->width,
+      pCodecCtx->height, AV_PIX_FMT_YUV420P, SWS_BICUBIC, NULL, NULL, NULL);
+  //------------------------------
+  SDL_Thread *video_tid = SDL_CreateThread(sfp_refresh_thread, NULL);
+  //
+  SDL_WM_SetCaption("Simplest FFmpeg Grab Desktop", NULL);
+  // Event Loop
+  SDL_Event event;
+
+  for (;;) {
+    // Wait
+    SDL_WaitEvent(&event);
+    if (event.type == SFM_REFRESH_EVENT) {
+      //------------------------------
+      if (av_read_frame(pFormatCtx, packet) >= 0) {
+        if (packet->stream_index == videoindex) {
+          ret = avcodec_decode_video2(pCodecCtx, pFrame, &got_picture, packet);
+          if (ret < 0) {
+            printf("Decode Error.\n");
+            return -1;
+          }
+          if (got_picture) {
+            SDL_LockYUVOverlay(bmp);
+            pFrameYUV->data[0] = bmp->pixels[0];
+            pFrameYUV->data[1] = bmp->pixels[2];
+            pFrameYUV->data[2] = bmp->pixels[1];
+            pFrameYUV->linesize[0] = bmp->pitches[0];
+            pFrameYUV->linesize[1] = bmp->pitches[2];
+            pFrameYUV->linesize[2] = bmp->pitches[1];
+            sws_scale(img_convert_ctx,
+                      (const unsigned char *const *)pFrame->data,
+                      pFrame->linesize, 0, pCodecCtx->height, pFrameYUV->data,
+                      pFrameYUV->linesize);
+
+#if OUTPUT_YUV420P
+            int y_size = pCodecCtx->width * pCodecCtx->height;
+            fwrite(pFrameYUV->data[0], 1, y_size, fp_yuv);      // Y
+            fwrite(pFrameYUV->data[1], 1, y_size / 4, fp_yuv);  // U
+            fwrite(pFrameYUV->data[2], 1, y_size / 4, fp_yuv);  // V
+#endif
+            SDL_UnlockYUVOverlay(bmp);
+
+            SDL_DisplayYUVOverlay(bmp, &rect);
+          }
+        }
+        av_free_packet(packet);
+      } else {
+        // Exit Thread
+        thread_exit = 1;
+      }
+    } else if (event.type == SDL_QUIT) {
+      thread_exit = 1;
+    } else if (event.type == SFM_BREAK_EVENT) {
+      break;
+    }
+  }
+
+  sws_freeContext(img_convert_ctx);
+
+#if OUTPUT_YUV420P
+  fclose(fp_yuv);
+#endif
+
+  SDL_Quit();
+
+  // av_free(out_buffer);
+  av_free(pFrameYUV);
+  avcodec_close(pCodecCtx);
+  avformat_close_input(&pFormatCtx);
+
+  return 0;
+}

thirdparty/ffmpeg/xmake.lua

@@ -43,9 +43,10 @@ package("ffmpeg")
         add_configs("hardcoded-tables", {description = "Enable hardcoded tables.", default = true, type = "boolean"})
         add_configs("asm",              {description = "Enable asm", default = false, type = "boolean"})
         add_configs("libopenh264",      {description = "Enable libopenh264", default = false, type = "boolean"})
+        add_configs("libxcb",           {description = "Enable libxcb", default = true, type = "boolean"})
     end
 
-    add_links("avfilter", "avdevice", "avformat", "avcodec", "swscale", "swresample", "avutil")
+    add_links("avfilter", "avdevice", "avformat", "avcodec", "swscale", "swresample", "avutil", "postproc")
     if is_plat("macosx") then
         add_frameworks("CoreFoundation", "Foundation", "CoreVideo", "CoreMedia", "AudioToolbox", "VideoToolbox", "Security")
     elseif is_plat("linux") then

thirdparty/sdl2/xmake.lua

@@ -1,11 +0,0 @@
-package("sdl2")
-    add_urls("https://github.com/libsdl-org/SDL/archive/refs/tags/release-2.28.3.tar.gz", {alias = "github"})
-    add_versions("github:2.28.3", "c17455d6e0c484bfe634b8de6af4c608e86ee449c28e40af04064aa6643fe382")
-
-    add_deps("cmake")
-    on_install(function (package)
-        local configs = {}
-        table.insert(configs, "-DSDL_SHARED_ENABLED_BY_DEFAULT=OFF -DSDL_TEST_ENABLED_BY_DEFAULT=OFF")
-        import("package.tools.cmake").install(package, configs)
-    end)
-package_end()

thirdparty/xmake.lua

@@ -1,5 +1,7 @@
-includes("sdl2", "projectx")
+includes("projectx")
 if is_plat("windows") then
 elseif is_plat("linux") then
     includes("ffmpeg")
+elseif is_plat("macosx") then
+    includes("ffmpeg")
 end

xmake.lua

@@ -1,112 +1,214 @@
 set_project("remote_desk")
-set_version("0.0.1")
 set_license("LGPL-3.0")
 
+set_version("0.0.1")
+add_defines("RD_VERSION=\"0.0.1\"");
+
 add_rules("mode.release", "mode.debug")
 set_languages("c++17")
+set_encodings("utf-8")
+
+-- set_policy("build.warning", true)
+-- set_warnings("all", "extra")
 
 add_defines("UNICODE")
 if is_mode("debug") then
     add_defines("REMOTE_DESK_DEBUG")
 end
 
-add_requires("sdl2", {system = false})
-add_requires("spdlog 1.11.0", {system = false})
-add_requires("imgui 1.89.9", {configs = {sdl2 = true, sdl2_renderer = true}})
+add_requires("spdlog 1.14.1", {system = false})
+add_requires("imgui v1.91.5-docking", {configs = {sdl2 = true, sdl2_renderer = true}})
+add_requires("miniaudio 0.11.21")
+add_requires("openssl3 3.3.2", {system = false})
 
 if is_os("windows") then
+    add_requires("libyuv")
     add_links("Shell32", "windowsapp", "dwmapi", "User32", "kernel32",
         "SDL2-static", "SDL2main", "gdi32", "winmm", "setupapi", "version",
         "Imm32", "iphlpapi")
-    add_requires("vcpkg::ffmpeg 5.1.2", {configs = {shared = false}})
-    add_packages("vcpkg::ffmpeg")
+    add_cxflags("/WX")
 elseif is_os("linux") then
     add_requires("ffmpeg 5.1.2", {system = false})
-    add_packages("ffmpeg")
-    add_links("SDL2")
     add_syslinks("pthread", "dl")
-    add_links("SDL2")
+    add_linkdirs("thirdparty/projectx/thirdparty/nvcodec/Lib/x64")
+    add_links("SDL2", "cuda", "nvidia-encode", "nvcuvid")
     add_ldflags("-lavformat", "-lavdevice", "-lavfilter", "-lavcodec",
         "-lswscale", "-lavutil", "-lswresample",
         "-lasound", "-lxcb-shape", "-lxcb-xfixes", "-lsndio", "-lxcb", 
-        "-lxcb-shm", "-lXext", "-lX11", "-lXv", "-ldl", "-lpthread", 
+        "-lxcb-shm", "-lXext", "-lX11", "-lXv", "-ldl", "-lpthread",
         {force = true})
+    add_cxflags("-Wno-unused-variable")   
 elseif is_os("macosx") then
     add_requires("ffmpeg 5.1.2", {system = false})
-    add_packages("ffmpeg")
-    add_links("SDL2")
+    add_requires("libxcb", {system = false})
+    add_packages("libxcb")
+    add_links("SDL2", "SDL2main")
+    add_ldflags("-Wl,-ld_classic")
+    add_cxflags("-Wno-unused-variable")
+    add_frameworks("OpenGL", "IOSurface", "ScreenCaptureKit")
 end
 
-add_packages("spdlog", "sdl2", "imgui")
+add_packages("spdlog", "imgui")
 
 includes("thirdparty")
 
-target("log")
+target("rd_log")
     set_kind("object")
     add_packages("spdlog")
-    add_headerfiles("src/log/log.h")
+    add_files("src/log/rd_log.cpp")
     add_includedirs("src/log", {public = true})
 
-target("screen_capture")
+target("common")
     set_kind("object")
-    add_deps("log")
+    add_deps("rd_log")
+    add_files("src/common/*.cpp")
+    add_includedirs("src/common", {public = true})
+
+target("screen_capturer")
+    set_kind("object")
+    add_deps("rd_log")
+    add_includedirs("src/screen_capturer", {public = true})
     if is_os("windows") then
-        add_files("src/screen_capture/windows/*.cpp")
-        add_includedirs("src/screen_capture/windows", {public = true})
+        add_packages("libyuv")
+        add_files("src/screen_capturer/windows/*.cpp")
+        add_includedirs("src/screen_capturer/windows", {public = true})
     elseif is_os("macosx") then
-         add_files("src/screen_capture/macosx/*.cpp")
-         add_includedirs("ssrc/creen_capture/macosx", {public = true})
+        add_packages("ffmpeg")
+        add_files("src/screen_capturer/macosx/avfoundation/*.cpp",
+        "src/screen_capturer/macosx/screen_capturer_kit/*.cpp",
+        "src/screen_capturer/macosx/screen_capturer_kit/*.mm")
+        add_includedirs("src/screen_capturer/macosx/avfoundation",
+        "src/screen_capturer/macosx/screen_capturer_kit", {public = true})
     elseif is_os("linux") then
-         add_files("src/screen_capture/linux/*.cpp")
-         add_includedirs("src/screen_capture/linux", {public = true})
+        add_packages("ffmpeg")
+        add_files("src/screen_capturer/linux/*.cpp")
+        add_includedirs("src/screen_capturer/linux", {public = true})
     end
 
+target("speaker_capturer")
+    set_kind("object")
+    add_deps("rd_log")
+    add_includedirs("src/speaker_capturer", {public = true})
+    if is_os("windows") then
+        add_packages("miniaudio")
+        add_files("src/speaker_capturer/windows/*.cpp")
+        add_includedirs("src/speaker_capturer/windows", {public = true})
+    elseif is_os("macosx") then
+        add_files("src/speaker_capturer/macosx/*.cpp")
+        add_includedirs("src/speaker_capturer/macosx", {public = true})
+    elseif is_os("linux") then
+        add_files("src/speaker_capturer/linux/*.cpp")
+        add_includedirs("src/speaker_capturer/linux", {public = true})
+    end
+
+target("device_controller")
+    set_kind("object")
+    add_deps("rd_log")
+    add_includedirs("src/device_controller", {public = true})
+    if is_os("windows") then
+        add_files("src/device_controller/mouse/windows/*.cpp",
+        "src/device_controller/keyboard/windows/*.cpp")
+        add_includedirs("src/device_controller/mouse/windows",
+        "src/device_controller/keyboard/windows", {public = true})
+    elseif is_os("macosx") then
+        add_files("src/device_controller/mouse/mac/*.cpp",
+        "src/device_controller/keyboard/mac/*.cpp")
+        add_includedirs("src/device_controller/mouse/mac",
+        "src/device_controller/keyboard/mac", {public = true})
+    elseif is_os("linux") then
+         add_files("src/device_controller/mouse/linux/*.cpp",
+         "src/device_controller/keyboard/linux/*.cpp")
+         add_includedirs("src/device_controller/mouse/linux",
+         "src/device_controller/keyboard/linux", {public = true})
+    end
+
+target("config_center")
+    set_kind("object")
+    add_deps("rd_log")
+    add_files("src/config_center/*.cpp")
+    add_includedirs("src/config_center", {public = true})
+
+target("localization")
+    set_kind("headeronly")
+    add_includedirs("src/localization", {public = true})
+
+target("single_window")
+    set_kind("object")
+    add_packages("libyuv", "openssl3")
+    add_deps("rd_log", "common", "localization", "config_center", "projectx", "screen_capturer", "speaker_capturer", "device_controller")
+    if is_os("macosx") then
+        add_packages("ffmpeg")
+    elseif is_os("linux") then
+        add_packages("ffmpeg")
+    end
+    add_files("src/single_window/*.cpp")
+    add_includedirs("src/single_window", {public = true})
+    add_includedirs("fonts", {public = true})
+
 target("remote_desk")
     set_kind("binary")
-    add_deps("log", "screen_capture", "projectx")
+    add_deps("rd_log", "common", "single_window")
+    if is_os("windows") then
+        add_files("icon/app.rc")
+    elseif is_os("macosx") then
+        add_packages("ffmpeg")
+        -- add_rules("xcode.application")
+        -- add_files("Info.plist")
+    elseif is_os("linux") then
+        add_packages("ffmpeg")
+    end
     add_files("src/gui/main.cpp")
 
-    -- after_install(function (target)
-    --     os.cp("$(projectdir)/thirdparty/nvcodec/Lib/x64/*.so", "$(projectdir)/out/bin")
-    --     os.cp("$(projectdir)/thirdparty/nvcodec/Lib/x64/*.so.1", "$(projectdir)/out/bin")
-    --     os.cp("$(projectdir)/out/lib/*.so", "$(projectdir)/out/bin")
-    --     os.rm("$(projectdir)/out/include")
-    --     os.rm("$(projectdir)/out/lib")
-    -- end)
+-- target("miniaudio_capture")
+--     set_kind("binary")
+--     add_packages("miniaudio")
+--     if is_os("windows") then
+--         add_files("test/audio_capture/miniaudio.cpp")
+--     end
 
--- target("screen_capture")
+-- target("screen_capturer")
 --     set_kind("binary")
 --     add_packages("sdl2", "imgui",  "ffmpeg", "openh264")
---     add_files("test/screen_capture/linux_capture.cpp")
+--     add_files("test/screen_capturer/linux_capture.cpp")
 --     add_ldflags("-lavformat", "-lavdevice", "-lavfilter", "-lavcodec",
 --     "-lswscale", "-lavutil", "-lswresample",
 --     "-lasound", "-lxcb-shape", "-lxcb-xfixes", "-lsndio", "-lxcb", 
 --     "-lxcb-shm", "-lXext", "-lX11", "-lXv", "-lpthread", "-lSDL2", "-lopenh264",
 --     "-ldl", {force = true})
 
-target("audio_capture")
-    set_kind("binary")
-    add_packages("ffmpeg")
-    add_files("test/audio_capture/sdl2_audio_capture.cpp")
-    add_includedirs("test/audio_capture")
-    add_ldflags("-lavformat", "-lavdevice", "-lavfilter", "-lavcodec",
-    "-lswscale", "-lavutil", "-lswresample",
-    "-lasound", "-lxcb-shape", "-lxcb-xfixes", "-lsndio", "-lxcb", 
-    "-lxcb-shm", "-lXext", "-lX11", "-lXv", "-lpthread", "-lSDL2", "-lopenh264",
-    "-ldl", {force = true})
-    add_links("Shlwapi", "Strmiids", "Vfw32", "Secur32", "Mfuuid")
+-- target("screen_capturer")
+--     set_kind("binary")
+--     add_packages("sdl2", "imgui",  "ffmpeg", "openh264")
+--     add_files("test/screen_capturer/mac_capture.cpp")
+--     add_ldflags("-lavformat", "-lavdevice", "-lavfilter", "-lavcodec",
+--     "-lswscale", "-lavutil", "-lswresample",
+--     "-lasound", "-lxcb-shape", "-lxcb-xfixes", "-lsndio", "-lxcb", 
+--     "-lxcb-shm", "-lXext", "-lX11", "-lXv", "-lpthread", "-lSDL2", "-lopenh264",
+--     "-ldl", {force = true})
 
-target("play_audio")
-    set_kind("binary")
-    add_packages("ffmpeg")
-    add_files("test/audio_capture/play_loopback.cpp")
-    add_includedirs("test/audio_capture")
-    add_ldflags("-lavformat", "-lavdevice", "-lavfilter", "-lavcodec",
-    "-lswscale", "-lavutil", "-lswresample",
-    "-lasound", "-lxcb-shape", "-lxcb-xfixes", "-lsndio", "-lxcb", 
-    "-lxcb-shm", "-lXext", "-lX11", "-lXv", "-lpthread", "-lSDL2", "-lopenh264",
-    "-ldl", {force = true})
-    add_links("Shlwapi", "Strmiids", "Vfw32", "Secur32", "Mfuuid")
+-- target("audio_capture")
+--     set_kind("binary")
+--     add_packages("ffmpeg")
+--     add_files("test/audio_capture/sdl2_audio_capture.cpp")
+--     add_includedirs("test/audio_capture")
+--     add_ldflags("-lavformat", "-lavdevice", "-lavfilter", "-lavcodec",
+--     "-lswscale", "-lavutil", "-lswresample",
+--     "-lasound", "-lxcb-shape", "-lxcb-xfixes", "-lsndio", "-lxcb", 
+--     "-lxcb-shm", "-lXext", "-lX11", "-lXv", "-lpthread", "-lSDL2", "-lopenh264",
+--     "-ldl", {force = true})
+--     add_links("Shlwapi", "Strmiids", "Vfw32", "Secur32", "Mfuuid")
+
+-- target("play_audio")
+--     set_kind("binary")
+--     add_packages("ffmpeg")
+--     add_files("test/audio_capture/play_loopback.cpp")
+--     add_includedirs("test/audio_capture")
+--     add_ldflags("-lavformat", "-lavdevice", "-lavfilter", "-lavcodec",
+--     "-lswscale", "-lavutil", "-lswresample",
+--     "-lasound", "-lxcb-shape", "-lxcb-xfixes", "-lsndio", "-lxcb", 
+--     "-lxcb-shm", "-lXext", "-lX11", "-lXv", "-lpthread", "-lSDL2", "-lopenh264",
+--     "-ldl", {force = true})
+--     add_links("Shlwapi", "Strmiids", "Vfw32", "Secur32", "Mfuuid")
 
 -- target("audio_capture")
 --     set_kind("binary")
@@ -117,4 +219,9 @@ target("play_audio")
 --     "-lswscale", "-lavutil", "-lswresample",
 --     "-lasound", "-lxcb-shape", "-lxcb-xfixes", "-lsndio", "-lxcb", 
 --     "-lxcb-shm", "-lXext", "-lX11", "-lXv", "-lpthread", "-lSDL2", "-lopenh264",
---     "-ldl", {force = true})
+--     "-ldl", {force = true})
+
+-- target("mouse_control")
+--     set_kind("binary")
+--     add_files("test/linux_mouse_control/mouse_control.cpp")
+--     add_includedirs("test/linux_mouse_control")