//-------------------------------------------------------------------
// Initialise the source reader
//
HRESULT VidReader::initSourceReader(WCHAR *filename)
{
HRESULT hr = S_OK;
IMFAttributes *pAttributes = NULL;
SafeRelease(&m_pReader);
// Configure the source reader to perform video processing
hr = MFCreateAttributes(&pAttributes, 1);
if (FAILED(hr)) goto done;
hr = pAttributes->SetUINT32(MF_SOURCE_READER_ENABLE_VIDEO_PROCESSING, TRUE);
if (FAILED(hr)) goto done;
// Create the source reader from the URL
hr = MFCreateSourceReaderFromURL(filename, pAttributes, &m_pReader);
if (FAILED(hr)) goto done;
// Attempt to find a video stream
hr = selectVideoStream();
if (FAILED(hr)) goto done;
// Get the stream format
hr = getVideoFormat();
if (FAILED(hr)) goto done;
// Get the duration
hr = getDuration();
done:
return hr;
}
void Demuxer::selectFirstVideoStream()
{
std::set< std::shared_ptr<Stream> > videoStreams = getStreamsOfType(Video);
if (videoStreams.size())
selectVideoStream(std::dynamic_pointer_cast<VideoStream>(*videoStreams.begin()));
}
