[refactor] reorganize platform and wire sources

apps/desktop/src/platform/windows/speaker_capturer/speaker_capturer_factory.cpp

@@ -0,0 +1,11 @@
+#include "speaker_capturer_factory.h"
+
+#include "speaker_capturer_wasapi.h"
+
+namespace crossdesk {
+
+SpeakerCapturer* SpeakerCapturerFactory::Create() {
+  return new SpeakerCapturerWasapi();
+}
+
+}  // namespace crossdesk

apps/desktop/src/platform/windows/speaker_capturer/speaker_capturer_wasapi.cpp

@@ -0,0 +1,104 @@
+#include "speaker_capturer_wasapi.h"
+
+#include "rd_log.h"
+
+#define MINIAUDIO_IMPLEMENTATION
+#include "miniaudio.h"
+
+#define SAVE_AUDIO_FILE 0
+
+namespace crossdesk {
+
+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_),
+                       "audio");
+  }
+
+  (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; }
+}  // namespace crossdesk

apps/desktop/src/platform/windows/speaker_capturer/speaker_capturer_wasapi.h

@@ -0,0 +1,37 @@
+/*
+ * @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"
+
+namespace crossdesk {
+
+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;
+};
+}  // namespace crossdesk
+#endif