MFCreateSourceReaderFromByteStream return 0xc00d36c4 for extended video format

Question

Hello:

    I'm writting code about extended video playback with video format(.rm). Playback is okay but it will fail(hr=0xc00d36c4) when call MFCreateSourceReaderFromByteStream to get the video thumbnail

    // Register custom ByteStreamHandler and custom decoder.
     m_extensions = ref new MediaExtensionManager();

     m_extensions->RegisterByteStreamHandler("Test.RMByteStreamHandler", ".rm", "video/testrm");
     m_extensions->RegisterAudioDecoder("Test.RADecoder", Guid(MEDIASUBTYPE_RA), Guid(GUID_NULL));
      m_extensions->RegisterVideoDecoder("Test.RVDecoder", Guid(MEDIASUBTYPE_RV), Guid(GUID_NULL));

     ......

  task<StorageFile^>(StorageFile::GetFileFromPathAsync(Path)).then([this](StorageFile^ file) -> IAsyncOperation<IRandomAccessStream^>^
  {
      return file->OpenAsync(FileAccessMode::Read);
  }).then([this,bManual](IRandomAccessStream^ strm)
  {

        //Playback

       VideoElement->SetSource(strm,"video/testrm");

        //Try to get the video thumbnail by MF SourceReader

       MFStartup(MF_VERSION);

    //First Get IMFSourceReader

    IMFSourceReader*  pMFSourceReader = NULL;
    UINT32  nWidth = 0, nHeight = 0;
    UINT32  nAspectX = 0, nAspectY = 0;
    LONGLONG llDuration = 0;
    HRESULT   hr = S_OK;
       //Get IMFSourceReader
       IRandomAccessStream ^pStream = strm;
       IMFByteStream*  pMFByteStream = NULL;

      hr = MFCreateMFByteStreamOnStreamEx((IUnknown*)pStream, &pMFByteStream);
      IMFAttributes  *pAttr = NULL;
      hr = pMFByteStream->QueryInterface(__uuidof(IMFAttributes),(void**)&pAttr);
      if (pAttr)
      {
           hr = pAttr->SetString(MF_BYTESTREAM_CONTENT_TYPE,L"video/testrm");
      }
      IMFAttributes  *pAttr = NULL;
     MFCreateAttributes(&pAttr,1);
     hr = pAttr->SetUINT32(MF_SOURCE_READER_ENABLE_VIDEO_PROCESSING,true);
     hr = MFCreateSourceReaderFromByteStream(pMFByteStream,pAttr,&pMFSourceReader);//Now it will fail with  0xc00d36c4

   }
  });

   My Questions:

   1.How to create SourceReader for extended video source?

   2.How to get the thumbnai for extended video format?

Best Wishes,

Xinhua

Answer 1

Xinhua,

Is this link helpful:  http://msdn.microsoft.com/en-us/library/aa371872.aspx

Best Wishes - Eric

Answer 2

Eric:

You link is for Microsoft Media Foundation.

I'm writting metro codec on W8 8400.It will succeed when call MFCreateSourceReaderFromByteStream if the video file is system suppprted.But it will fail(hr= 0xc00d36c4) if the video file is system no suppprted even if I register it by call RegisterByteStreamHandler("Test.RMByteStreamHandler", ".rm", "video/testrm");

My question is:

1.if the WRT API (registerByteStreamHandler) is useless when call Win32 API(MFCreateSourceReaderFromByteStream)?

2.If so,what's the resolution to get the video thumbnail for extended video format on metro APP?

Thanks,