/// <summary>
/// Creates the reader (overridable by )
/// </summary>
protected virtual IMFSourceReader CreateReader(MediaFoundationReaderSettings settings)
{
IMFSourceReader reader;
MediaFoundationInterop.MFCreateSourceReaderFromURL(file, null, out reader);
reader.SetStreamSelection(MediaFoundationInterop.MF_SOURCE_READER_ALL_STREAMS, false);
reader.SetStreamSelection(MediaFoundationInterop.MF_SOURCE_READER_FIRST_AUDIO_STREAM, true);
// Create a partial media type indicating that we want uncompressed PCM audio
var partialMediaType = new MediaType();
partialMediaType.MajorType = MediaTypes.MFMediaType_Audio;
partialMediaType.SubType = settings.RequestFloatOutput ? AudioSubtypes.MFAudioFormat_Float : AudioSubtypes.MFAudioFormat_PCM;
var currentMediaType = GetCurrentMediaType(reader);
// mono, low sample rate files can go wrong on Windows 10 unless we specify here
partialMediaType.ChannelCount = currentMediaType.ChannelCount;
partialMediaType.SampleRate = currentMediaType.SampleRate;
// set the media type
// can return MF_E_INVALIDMEDIATYPE if not supported
reader.SetCurrentMediaType(MediaFoundationInterop.MF_SOURCE_READER_FIRST_AUDIO_STREAM, IntPtr.Zero, partialMediaType.MediaFoundationObject);
Marshal.ReleaseComObject(currentMediaType.MediaFoundationObject);
return(reader);
}
/// <summary>
/// Creates the reader (overridable by )
/// </summary>
protected virtual IMFSourceReader CreateReader(MediaFoundationReaderSettings settings)
{
IMFSourceReader reader;
// If the file exists.
if (!String.IsNullOrEmpty(file))
{
MediaFoundationInterop.MFCreateSourceReaderFromURL(file, null, out reader);
}
else
{
IMFByteStream byteStream = MediaFoundationApi.CreateByteStreamFromStream(_inputStream);
MediaFoundationInterop.MFCreateSourceReaderFromByteStream(byteStream, null, out reader);
}
reader.SetStreamSelection(MediaFoundationInterop.MF_SOURCE_READER_ALL_STREAMS, false);
reader.SetStreamSelection(MediaFoundationInterop.MF_SOURCE_READER_FIRST_AUDIO_STREAM, true);
// Create a partial media type indicating that we want uncompressed PCM audio
var partialMediaType = new MediaType();
partialMediaType.MajorType = MediaTypes.MFMediaType_Audio;
partialMediaType.SubType = settings.RequestFloatOutput ? AudioSubtypes.MFAudioFormat_Float : AudioSubtypes.MFAudioFormat_PCM;
// set the media type
// can return MF_E_INVALIDMEDIATYPE if not supported
reader.SetCurrentMediaType(MediaFoundationInterop.MF_SOURCE_READER_FIRST_AUDIO_STREAM, IntPtr.Zero, partialMediaType.MediaFoundationObject);
return(reader);
}
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);
imfsourceReader.SetCurrentMediaType(-3, IntPtr.Zero, mediaType.MediaFoundationObject);
return(imfsourceReader);
}
public Video(string path, bool loop = false)
{
_path = path;
Loop = loop;
// Get the frame size
MediaFoundationInterop.MFCreateSourceReaderFromURL(_path, null, out IMFSourceReader reader);
reader.GetNativeMediaType(MediaFoundationInterop.MF_SOURCE_READER_FIRST_VIDEO_STREAM, 0, out IMFMediaType nativeType);
nativeType.GetUINT64(MF_MT_FRAME_SIZE, out long size);
_videoWidth = (int)((size >> 32) & 0x7FFFFFFF);
_videoHeight = (int)(size & 0x7FFFFFFF);
_length = GetLength(reader);
Marshal.ReleaseComObject(nativeType);
Marshal.ReleaseComObject(reader);
Pack();
}
