Microsoft mpeg 2 decoder how to#
Microsoft mpeg 2 decoder software#
Microsoft mpeg 2 decoder windows#

When this method is called, the decoder outputs only frames that fall within the range of time stamps specified by the caller. For precise seeking, call the IMFTransform::SetOutputBounds method. To enable low latency mode, set the CODECAPI_AVLowLatencyMode attribute. However, the decoder buffers fewer samples in this mode, which can potentially lead to glitches, because the decoder does not decode as many frames in advance. It reduces start-up latency, so the decoder produces the first output sample sooner. This mode is appropriate for scenarios such as real-time communications. The decoder supports DirectX Video Acceleration (DXVA) using either Microsoft Direct3DР В РІР‚в„ўР вЂ™Р’В 9 or Microsoft Direct3DР В РІР‚в„ўР вЂ™Р’В 11. The maximum supported resolution is 1920 Р В РІР‚СљР Р†Р вЂљРІР‚Сњ 1088 pixels. The input to the decoder must be an elementary stream. The MPEG-2 video decoder exposes the following interfaces:

MFVideoFormat_I420 MFVideoFormat_IYUV MFVideoFormat_NV12 MFVideoFormat_YUY2 MFVideoFormat_YV12 The decoder supports the following output types. The decoder supports the following input media types. The decoder supports MPEG-2 Simple and Main profile video (H.262, ISO/IEC 13818-2) and MPEG-1 video (ISO/IEC 11172-2). Nevertheless, I wish to have same performances.The MPEG-2 Video Decoder is a Media Foundation transform that decodes MPEG-1 and MPEG-2 video. I don't know how VLC processes the video streams and maybe I don't have to.

I didn't try with media player since I cannot start 4 instances.

with GraphEdit (source->decode->render x4) : CPU 35%.

with my program (release mode) : CPU 65%.

Microsoft mpeg 2 decoder windows#

I tried do display 4 H264 videos (640x480) on the same screen, in 4 windows : There I read that my card should decode H264 if the right codec is installed (and I think it is since I'm under Win7).

Microsoft mpeg 2 decoder how to#

In the same time, I've also posted a question on NVIDIA support forum about how to check H264 capabilities of a graphic card. This software, and I have good results (my card is compatible). I've checked the DXVA properties of my graphic cards with

Microsoft mpeg 2 decoder software#

Olivier Passalacqua // Software developer // Eboo solutions - France If you can give me another glimmer of hope. Perhaps the EVR is still using a rending surface out of the graphic card (such as GDI things.). Here I would like to correctly set the configuration of existing filters. The docs you gave me are really interesting but they are almost better for a filter development. I also tried to do the same to the output pin of the decoder which implies an error because (of course) there is no compatible interface. I can watch the videos but my CPU is still overloaded :-( Then no improvements of decoding performances. Hr = pGraph2->Connect(pOutPin, pInPin) // returns S_OK -END OF UPDATES // FINALLY CONNECT THE PINS Hr = pDXVideoConfig->SetSurfaceType(DXVA2_SurfaceType_DecoderRenderTarget) // returns S_OK break If (surfaceType = DXVA2_SurfaceType_DecoderRenderTarget) Hr = pDXVideoConfig->GetAvailableSurfaceTypeByIndex(iTypeIndex,&surfaceType) Hr = pGetServiceLocal->GetService(MR_VIDEO_ACCELERATION_SERVICE,IID_PPV_ARGS(&pDXVideoConfig)) Р В РІР‚СњР В РІР‚РЋor(DWORD iTypeIndex = 0 iTypeIndex++) Hr = pInPin->QueryInterface(IID_IMFGetService, ( void**) &pGetServiceLocal) IDirectXVideoMemorР В Р’ВµР РЋРЎв„ўР РЋРЎв„ўonfiguration *pDXVideoConfig = NULL

HERE I ADDED SurfaceType SETTING if (SUCCEEDED(hr)) Hr = pEVR->FindPin(L 'EVR Input0',&pInPin) Hr = pVideoFilter->FindPin(L '1',&pOutPin) Hr = m_pGraph->AddFilter(pVS->pVideoFilter,L 'My Video reader0') Hr = AddFilterBР В Р’ВµР РЋРЎв„ўР РЋРЎв„ўLSID(m_pGraph, CLSID_EnhancedVideoRenderer, &pEVR, L 'EVR')