tencent cloud

self.trtcCloud = [TRTCCloud sharedInstance];
[self.trtcCloud enableCustomVideoCapture:TRTCVideoStreamTypeBig enable:YES];


liteav::ITRTCCloud* trtc_cloud = liteav::ITRTCCloud::getTRTCShareInstance();
trtc_cloud->enableCustomVideoCapture(TRTCVideoStreamType::TRTCVideoStreamTypeBig, true);


// On iOS and macOS, the video captured by the camera is in NV12 format. The natively supported and best-performing video frame format is CVPixelBufferRef, and I420 and OpenGL 2D texture formats are also supported. CVPixelBufferRef is used as an example here, which is recommended. 
TRTCVideoFrame *videoFrame = [[TRTCVideoFrame alloc] init];
videoFrame.pixelFormat = TRTCVideoPixelFormat_NV12;
videoFrame.bufferType = TRTCVideoBufferType_PixelBuffer;
videoFrame.pixelBuffer = imageBuffer;
videoFrame.timestamp = timeStamp;

[[TRTCCloud sharedInstance] sendCustomVideoData:TRTCVideoStreamTypeBig frame:videoFrame];   


// Only the Buffer scheme is available for Windows currently and is recommended for feature implementation.
liteav::TRTCVideoFrame frame;
frame.timestamp = getTRTCShareInstance()->generateCustomPTS();
frame.videoFormat = liteav::TRTCVideoPixelFormat_I420;
frame.bufferType = liteav::TRTCVideoBufferType_Buffer;
frame.length = buffer_size;
frame.data = array.data();
frame.width = YUV_WIDTH;
frame.height = YUV_HEIGHT;
getTRTCShareInstance()->sendCustomVideoData(&frame);



self.trtcCloud = [TRTCCloud sharedInstance];
[self.trtcCloud setLocalVideoRenderDelegate:self pixelFormat:TRTCVideoPixelFormat_NV12 bufferType:TRTCVideoBufferType_PixelBuffer];


```
// For specific implementation, see `test_custom_render.cpp` in `TRTC-API-Example-Qt`
void TestCustomRender::onRenderVideoFrame(
    const char* userId,
    liteav::TRTCVideoStreamType streamType,
    liteav::TRTCVideoFrame* frame) {
  if (gl_yuv_widget_ == nullptr) {
    return;
  }

  if (streamType == liteav::TRTCVideoStreamType::TRTCVideoStreamTypeBig) {
    // Adjust the rendering window
    emit renderViewSize(frame->width, frame->height);
    // Draw video frames
    gl_yuv_widget_->slotShowYuv(reinterpret_cast<uchar*>(frame->data),
                                frame->width, frame->height);
  }
}
```


- (void)onRenderVideoFrame:(TRTCVideoFrame *)frame 
                    userId:(NSString *)userId 
                streamType:(TRTCVideoStreamType)streamType
{
    // If `userId` is `nil`, the image rendered is the local image; otherwise it is a remote image.
    CFRetain(frame.pixelBuffer);
    __weak __typeof(self) weakSelf = self;
    dispatch_async(dispatch_get_main_queue(), ^{
        TestRenderVideoFrame *strongSelf = weakSelf;
        UIImageView* videoView = nil;
        if (userId) {
            videoView = [strongSelf.userVideoViews objectForKey:userId];
        }
        else {
            videoView = strongSelf.localVideoView;
        }
        videoView.image = [UIImage imageWithCIImage:[CIImage imageWithCVImageBuffer:frame.pixelBuffer]];
        videoView.contentMode = UIViewContentModeScaleAspectFit;
        CFRelease(frame.pixelBuffer);
    });
}


```
// For specific implementation, see `test_custom_render.cpp` in `TRTC-API-Example-Qt`
void TestCustomRender::onRenderVideoFrame(
    const char* userId,
    liteav::TRTCVideoStreamType streamType,
    liteav::TRTCVideoFrame* frame) {
  if (gl_yuv_widget_ == nullptr) {
    return;
  }

  if (streamType == liteav::TRTCVideoStreamType::TRTCVideoStreamTypeBig) {
    // Adjust the rendering window
    emit renderViewSize(frame->width, frame->height);
    // Draw video frames
    gl_yuv_widget_->slotShowYuv(reinterpret_cast<uchar*>(frame->data),
                                frame->width, frame->height);
  }
}
```