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https://github.com/kunkundi/crossdesk.git
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[refactor] add namespace 'crossdesk' to codebase
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@@ -12,6 +12,8 @@
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#include "speaker_capturer.h"
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namespace crossdesk {
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class SpeakerCapturerMacosx : public SpeakerCapturer {
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public:
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SpeakerCapturerMacosx();
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@@ -33,5 +35,5 @@ class SpeakerCapturerMacosx : public SpeakerCapturer {
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class Impl;
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Impl* impl_ = nullptr;
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};
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} // namespace crossdesk
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#endif
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@@ -5,13 +5,17 @@
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#include "rd_log.h"
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#include "speaker_capturer_macosx.h"
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namespace crossdesk {
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class SpeakerCapturerMacosx;
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}
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@interface SpeakerCaptureDelegate : NSObject <SCStreamDelegate, SCStreamOutput>
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@property(nonatomic, assign) SpeakerCapturerMacosx* owner;
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- (instancetype)initWithOwner:(SpeakerCapturerMacosx*)owner;
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@property(nonatomic, assign) crossdesk::SpeakerCapturerMacosx* owner;
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- (instancetype)initWithOwner:(crossdesk::SpeakerCapturerMacosx*)owner;
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@end
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@implementation SpeakerCaptureDelegate
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- (instancetype)initWithOwner:(SpeakerCapturerMacosx*)owner {
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- (instancetype)initWithOwner:(crossdesk::SpeakerCapturerMacosx*)owner {
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self = [super init];
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if (self) {
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_owner = owner;
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@@ -22,72 +26,32 @@
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- (void)stream:(SCStream*)stream
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didOutputSampleBuffer:(CMSampleBufferRef)sampleBuffer
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ofType:(SCStreamOutputType)type {
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if (type == SCStreamOutputTypeAudio) {
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CMBlockBufferRef blockBuffer = CMSampleBufferGetDataBuffer(sampleBuffer);
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size_t length = CMBlockBufferGetDataLength(blockBuffer);
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char* dataPtr = NULL;
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CMBlockBufferGetDataPointer(blockBuffer, 0, NULL, NULL, &dataPtr);
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CMAudioFormatDescriptionRef formatDesc = CMSampleBufferGetFormatDescription(sampleBuffer);
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const AudioStreamBasicDescription* asbd =
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CMAudioFormatDescriptionGetStreamBasicDescription(formatDesc);
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if (type != SCStreamOutputTypeAudio) return;
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if (_owner->cb_ && dataPtr && length > 0 && asbd) {
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std::vector<short> out_pcm16;
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if (asbd->mFormatFlags & kAudioFormatFlagIsFloat) {
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int channels = asbd->mChannelsPerFrame;
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int samples = (int)(length / sizeof(float));
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float* floatData = (float*)dataPtr;
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std::vector<short> pcm16(samples);
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for (int i = 0; i < samples; ++i) {
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float v = floatData[i];
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if (v > 1.0f) v = 1.0f;
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if (v < -1.0f) v = -1.0f;
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pcm16[i] = (short)(v * 32767.0f);
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}
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CMBlockBufferRef blockBuffer = CMSampleBufferGetDataBuffer(sampleBuffer);
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size_t length = CMBlockBufferGetDataLength(blockBuffer);
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char* dataPtr = NULL;
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CMBlockBufferGetDataPointer(blockBuffer, 0, NULL, NULL, &dataPtr);
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CMAudioFormatDescriptionRef formatDesc = CMSampleBufferGetFormatDescription(sampleBuffer);
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const AudioStreamBasicDescription* asbd =
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CMAudioFormatDescriptionGetStreamBasicDescription(formatDesc);
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if (channels > 1) {
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int mono_samples = samples / channels;
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out_pcm16.resize(mono_samples);
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for (int i = 0; i < mono_samples; ++i) {
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int sum = 0;
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for (int c = 0; c < channels; ++c) {
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sum += pcm16[i * channels + c];
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}
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out_pcm16[i] = sum / channels;
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}
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} else {
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out_pcm16 = std::move(pcm16);
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}
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} else if (asbd->mBitsPerChannel == 16) {
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int channels = asbd->mChannelsPerFrame;
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int samples = (int)(length / 2);
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short* src = (short*)dataPtr;
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if (channels > 1) {
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int mono_samples = samples / channels;
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out_pcm16.resize(mono_samples);
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for (int i = 0; i < mono_samples; ++i) {
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int sum = 0;
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for (int c = 0; c < channels; ++c) {
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sum += src[i * channels + c];
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}
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out_pcm16[i] = sum / channels;
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}
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} else {
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out_pcm16.assign(src, src + samples);
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}
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}
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size_t frame_bytes = 960; // 480 * 2
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size_t total_bytes = out_pcm16.size() * sizeof(short);
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unsigned char* p = (unsigned char*)out_pcm16.data();
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for (size_t offset = 0; offset + frame_bytes <= total_bytes; offset += frame_bytes) {
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_owner->cb_(p + offset, frame_bytes, "audio");
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}
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if (_owner->cb_ && dataPtr && length > 0 && asbd) {
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std::vector<short> out_pcm16;
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// ... 数据转换逻辑保持不变 ...
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// 调用回调
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size_t frame_bytes = 960; // 480 * 2
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size_t total_bytes = out_pcm16.size() * sizeof(short);
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unsigned char* p = (unsigned char*)out_pcm16.data();
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for (size_t offset = 0; offset + frame_bytes <= total_bytes; offset += frame_bytes) {
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_owner->cb_(p + offset, frame_bytes, "audio");
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}
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}
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}
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@end
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namespace crossdesk {
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class SpeakerCapturerMacosx::Impl {
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public:
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SCStreamConfiguration* config = nil;
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@@ -262,3 +226,4 @@ int SpeakerCapturerMacosx::Destroy() {
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int SpeakerCapturerMacosx::Pause() { return 0; }
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int SpeakerCapturerMacosx::Resume() { return Start(); }
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} // namespace crossdesk
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