如何在单个流中合并多个实时（视频）流？所以输出将是单个视频中的多个（分割）视频？

我对流式传输很新颖。我的要求是将多个视频/流合并到单个视频中。因此，输出将是单个视频在单个播放器中同时显示多个视频（如安全摄像头视频）。如何在单个流中合并多个实时（视频）流？所以输出将是单个视频中的多个（分割）视频？

这里是我的示例代码---

IGraphBuilder oFilterGraph = (IGraphBuilder)new FilterGraph(); 
VideoMixingRenderer9 oVideoMixingRenderer = new VideoMixingRenderer9(); 
oFilterGraph.AddFilter((IBaseFilter)oVideoMixingRenderer, "Video"); 

IVMRFilterConfig9 oVMRFilterConfig = (IVMRFilterConfig9)oVideoMixingRenderer; 
oVMRFilterConfig.SetRenderingMode(VMR9Mode.Windowed); 
oVMRFilterConfig.SetNumberOfStreams(2); 
oVMRFilterConfig.SetRenderingPrefs(VMR9RenderPrefs.None);    

IVMRMixerControl9 oIVMRMixerControl = (IVMRMixerControl9)oVideoMixingRenderer; 

NormalizedRect oNormalizedRect = new NormalizedRect(); 
oNormalizedRect.left = 0.0F; 
oNormalizedRect.top = 0.0F; 
oNormalizedRect.bottom = 0.5F; 
oNormalizedRect.right = 0.5F; 
NormalizedRect oNormalizedRect1 = new NormalizedRect(); 
oNormalizedRect.left = 0.5F; 
oNormalizedRect.top = 0.5F; 
oNormalizedRect.bottom = 1; 
oNormalizedRect.right = 1; 

int iStreamId1 = oFilterGraph.RenderFile("c:\\file1.wmv", string.Empty); 
int iStreamId2 = oFilterGraph.RenderFile("c:\\file2.wmv", string.Empty); 
oIVMRMixerControl.SetOutputRect(0, ref oNormalizedRect); 
oIVMRMixerControl.SetOutputRect(1, ref oNormalizedRect1);   
oIVMRMixerControl.SetAlpha(0, 1); 
oIVMRMixerControl.SetAlpha(1, 1); 

IMediaControl oMediaControl = (IMediaControl)oFilterGraph; 
oMediaControl.Run();

我试着用代码，但未能成功。它只显示一个视频在控制&不显示另一个。

来源

2010-04-30 Shashank