protected override IMFSourceReader CreateReader(MediaFoundationReader.MediaFoundationReaderSettings settings)
{
IMFSourceReader expr_15 = MediaFoundationApi.CreateSourceReaderFromByteStream(MediaFoundationApi.CreateByteStream(new ComStream(this.stream)));
expr_15.SetStreamSelection(-2, false);
expr_15.SetStreamSelection(-3, true);
expr_15.SetCurrentMediaType(-3, IntPtr.Zero, new MediaType
{
MajorType = MediaTypes.MFMediaType_Audio,
SubType = settings.RequestFloatOutput ? AudioSubtypes.MFAudioFormat_Float : AudioSubtypes.MFAudioFormat_PCM
}.MediaFoundationObject);
return(expr_15);
}
protected void Init(MediaFoundationReader.MediaFoundationReaderSettings initialSettings)
{
MediaFoundationApi.Startup();
this.settings = (initialSettings ?? new MediaFoundationReader.MediaFoundationReaderSettings());
IMFSourceReader iMFSourceReader = this.CreateReader(this.settings);
this.waveFormat = this.GetCurrentWaveFormat(iMFSourceReader);
iMFSourceReader.SetStreamSelection(-3, true);
this.length = this.GetLength(iMFSourceReader);
if (this.settings.SingleReaderObject)
{
this.pReader = iMFSourceReader;
}
}
protected virtual IMFSourceReader CreateReader(MediaFoundationReader.MediaFoundationReaderSettings settings)
{
IMFSourceReader iMFSourceReader;
MediaFoundationInterop.MFCreateSourceReaderFromURL(this.file, null, out iMFSourceReader);
iMFSourceReader.SetStreamSelection(-2, false);
iMFSourceReader.SetStreamSelection(-3, true);
MediaType mediaType = new MediaType();
mediaType.MajorType = MediaTypes.MFMediaType_Audio;
mediaType.SubType = (settings.RequestFloatOutput ? AudioSubtypes.MFAudioFormat_Float : AudioSubtypes.MFAudioFormat_PCM);
MediaType currentMediaType = MediaFoundationReader.GetCurrentMediaType(iMFSourceReader);
mediaType.ChannelCount = currentMediaType.ChannelCount;
mediaType.SampleRate = currentMediaType.SampleRate;
iMFSourceReader.SetCurrentMediaType(-3, IntPtr.Zero, mediaType.MediaFoundationObject);
Marshal.ReleaseComObject(currentMediaType.MediaFoundationObject);
return(iMFSourceReader);
}
public StreamMediaFoundationReader(Stream stream, MediaFoundationReader.MediaFoundationReaderSettings settings = null)
{
this.stream = stream;
base.Init(settings);
}
public MediaFoundationReader(string file, MediaFoundationReader.MediaFoundationReaderSettings settings)
{
this.file = file;
this.Init(settings);
}
