public static IntPtr CreateSinkWriterFromMFByteStreamNative(MFByteStream byteStream, MFAttributes attributes)
{
IntPtr p;
int result = NativeMethods.ExternMFCreateSinkWriterFromURL(null, byteStream.BasePtr, attributes.BasePtr, out p);
MediaFoundationException.Try(result, "Interops", "MFCreateSinkWriterFromURL");
return p;
}
/// <summary>
/// Initializes a new instance of the <see cref="MediaFoundationDecoder" /> class.
/// </summary>
/// <param name="byteStream">Stream which provides the audio data to decode.</param>
public MediaFoundationDecoder(MFByteStream byteStream)
{
if (byteStream == null)
throw new ArgumentNullException("byteStream");
_byteStream = byteStream;
_reader = Initialize(_byteStream);
}
/// <summary>
/// Disposes the <see cref="MediaFoundationEncoder" />.
/// </summary>
/// <param name="disposing">
/// True to release both managed and unmanaged resources; false to release only unmanaged
/// resources.
/// </param>
protected virtual void Dispose(bool disposing)
{
if (!_disposed)
{
if (_sinkWriter != null)
{
//thanks to martin48 (and naudio??) for providing the following source code (see http://cscore.codeplex.com/discussions/574280):
MFSinkWriterStatistics statistics = _sinkWriter.GetStatistics(_streamIndex);
if (statistics.ByteCountQueued > 0 || statistics.NumSamplesReceived > 0)
{
_sinkWriter.FinalizeWriting();
}
_sinkWriter.Dispose();
_sinkWriter = null;
}
if (_targetStream != null)
{
_targetStream.Flush();
_targetStream.Dispose();
_targetStream = null;
}
if (_targetBaseStream != null && !_targetBaseStream.IsClosed())
{
_targetBaseStream.Flush();
_targetBaseStream.Dispose();
}
}
_disposed = true;
}
public static IntPtr CreateSinkWriterFromMFByteStreamNative(MFByteStream byteStream, MFAttributes attributes)
{
IntPtr p;
int result = NativeMethods.ExternMFCreateSinkWriterFromURL(null, byteStream.BasePtr, attributes.BasePtr, out p);
MediaFoundationException.Try(result, "Interops", "MFCreateSinkWriterFromURL");
return(p);
}
/// <summary>
/// Initializes a new instance of the <see cref="MediaFoundationDecoder" /> class.
/// </summary>
/// <param name="byteStream">Stream which provides the audio data to decode.</param>
public MediaFoundationDecoder(MFByteStream byteStream)
{
if (byteStream == null)
{
throw new ArgumentNullException("byteStream");
}
_byteStream = byteStream;
_reader = Initialize(_byteStream);
}
/// <summary>
/// Initializes a new instance of the <see cref="MediaFoundationDecoder" /> class.
/// </summary>
/// <param name="stream">Stream which provides the audio data to decode.</param>
public MediaFoundationDecoder(Stream stream)
{
if (stream == null)
throw new ArgumentNullException("stream");
if (!stream.CanRead)
throw new ArgumentException("Stream is not readable.", "stream");
stream = new ComStream(stream);
_stream = stream;
_byteStream = MediaFoundationCore.IStreamToByteStream((IStream) stream);
_reader = Initialize(_byteStream);
}
/// <summary>
/// Initializes a new instance of the <see cref="MediaFoundationDecoder" /> class.
/// </summary>
/// <param name="stream">Stream which provides the audio data to decode.</param>
public MediaFoundationDecoder(Stream stream)
{
if (stream == null)
{
throw new ArgumentNullException("stream");
}
if (!stream.CanRead)
{
throw new ArgumentException("Stream is not readable.", "stream");
}
stream = new ComStream(stream);
_stream = stream;
_byteStream = MediaFoundationCore.IStreamToByteStream((IStream)stream);
_reader = Initialize(_byteStream);
}
/// <summary>
/// Sets and initializes the targetstream for the encoding process.
/// </summary>
/// <param name="stream">Stream which should be used as the targetstream.</param>
/// <param name="inputMediaType">Mediatype of the raw input data to encode.</param>
/// <param name="targetMediaType">Mediatype of the encoded data.</param>
/// <param name="containerType">Container type which should be used.</param>
protected void SetTargetStream(Stream stream, MFMediaType inputMediaType, MFMediaType targetMediaType,
Guid containerType)
{
MFAttributes attributes = null;
try
{
_targetBaseStream = new ComStream(stream);
_targetStream = MediaFoundationCore.IStreamToByteStream(_targetBaseStream);
attributes = new MFAttributes(2);
attributes.SetUINT32(MediaFoundationAttributes.MF_READWRITE_ENABLE_HARDWARE_TRANSFORMS, 1);
attributes.SetGuid(MediaFoundationAttributes.MF_TRANSCODE_CONTAINERTYPE, containerType);
_sinkWriter = new MFSinkWriter(_targetStream, attributes);
_streamIndex = _sinkWriter.AddStream(targetMediaType);
_sinkWriter.SetInputMediaType(_streamIndex, inputMediaType, null);
_targetMediaType = targetMediaType;
_sourceBytesPerSecond = inputMediaType.AverageBytesPerSecond;
//initialize the sinkwriter
_sinkWriter.BeginWriting();
}
catch (Exception)
{
if (_sinkWriter != null)
{
_sinkWriter.Dispose();
_sinkWriter = null;
}
if (_targetStream != null)
{
_targetStream.Dispose();
_targetStream = null;
}
throw;
}
finally
{
if (attributes != null)
{
attributes.Dispose();
}
}
}
private void DisposeInternal()
{
if (_reader != null)
{
_reader.Dispose();
_reader = null;
}
if (_byteStream != null)
{
_byteStream.Dispose();
_byteStream = null;
}
if (_stream != null)
{
_stream.Dispose();
_stream = null;
}
}
private MFSourceReader Initialize(MFByteStream byteStream)
{
return Initialize(MediaFoundationCore.CreateSourceReaderFromByteStream(byteStream.BasePtr, IntPtr.Zero));
}
private void DisposeInternal()
{
if (_reader != null)
{
_reader.Dispose();
_reader = null;
}
if (_byteStream != null)
{
_byteStream.Dispose();
_byteStream = null;
}
if (_stream != null)
{
_stream.Dispose();
_stream = null;
}
}
private MFSourceReader Initialize(MFByteStream byteStream)
{
return(Initialize(MediaFoundationCore.CreateSourceReaderFromByteStream(byteStream.BasePtr, IntPtr.Zero)));
}
/// <summary>
/// Sets and initializes the targetstream for the encoding process.
/// </summary>
/// <param name="stream">Stream which should be used as the targetstream.</param>
/// <param name="inputMediaType">Mediatype of the raw input data to encode.</param>
/// <param name="targetMediaType">Mediatype of the encoded data.</param>
/// <param name="containerType">Container type which should be used.</param>
protected void SetTargetStream(Stream stream, MFMediaType inputMediaType, MFMediaType targetMediaType,
Guid containerType)
{
MFAttributes attributes = null;
try
{
_targetBaseStream = new ComStream(stream);
_targetStream = MediaFoundationCore.IStreamToByteStream(_targetBaseStream);
attributes = new MFAttributes(2);
attributes.SetUINT32(MediaFoundationAttributes.MF_READWRITE_ENABLE_HARDWARE_TRANSFORMS, 1);
attributes.SetGuid(MediaFoundationAttributes.MF_TRANSCODE_CONTAINERTYPE, containerType);
_sinkWriter = new MFSinkWriter(_targetStream, attributes);
_streamIndex = _sinkWriter.AddStream(targetMediaType);
_sinkWriter.SetInputMediaType(_streamIndex, inputMediaType, null);
_targetMediaType = targetMediaType;
_sourceBytesPerSecond = inputMediaType.AverageBytesPerSecond;
//initialize the sinkwriter
_sinkWriter.BeginWriting();
}
catch (Exception)
{
if (_sinkWriter != null)
{
_sinkWriter.Dispose();
_sinkWriter = null;
}
if (_targetStream != null)
{
_targetStream.Dispose();
_targetStream = null;
}
throw;
}
finally
{
if (attributes != null)
attributes.Dispose();
}
}
/// <summary>
/// Disposes the <see cref="MediaFoundationEncoder" />.
/// </summary>
/// <param name="disposing">
/// True to release both managed and unmanaged resources; false to release only unmanaged
/// resources.
/// </param>
protected virtual void Dispose(bool disposing)
{
if (!_disposed)
{
if (_sinkWriter != null && !_sinkWriter.IsDisposed)
{
//thanks to martin48 (and naudio??) for providing the following source code (see http://cscore.codeplex.com/discussions/574280):
MFSinkWriterStatistics statistics = _sinkWriter.GetStatistics(_streamIndex);
if (statistics.ByteCountQueued > 0 || statistics.NumSamplesReceived > 0)
_sinkWriter.FinalizeWriting();
_sinkWriter.Dispose();
_sinkWriter = null;
}
if (_targetStream != null)
{
_targetStream.Flush();
_targetStream.Dispose();
_targetStream = null;
}
if (_targetBaseStream != null && !_targetBaseStream.IsClosed())
{
_targetBaseStream.Flush();
_targetBaseStream.Dispose();
}
}
_disposed = true;
}
/// <summary>
/// Initializes a new instance of the <see cref="MFSinkWriter"/> class with a underlying <paramref name="byteStream"/>.
/// </summary>
/// <param name="byteStream">The underlying <see cref="MFByteStream"/> to use.</param>
/// <param name="attributes">Attributes to configure the <see cref="MFSinkWriter"/>. For more information, see <see href="https://msdn.microsoft.com/en-us/library/windows/desktop/dd389284(v=vs.85).aspx"/>. Use null/nothing as the default value.</param>
public MFSinkWriter(MFByteStream byteStream, MFAttributes attributes = null)
: this(MediaFoundationCore.CreateSinkWriterFromMFByteStreamNative(byteStream, attributes))
{
}
/// <summary>
/// Initializes a new instance of the <see cref="MFSinkWriter"/> class with a underlying <paramref name="byteStream"/>.
/// </summary>
/// <param name="byteStream">The underlying <see cref="MFByteStream"/> to use.</param>
/// <param name="attributes">Attributes to configure the <see cref="MFSinkWriter"/>. For more information, see <see href="https://msdn.microsoft.com/en-us/library/windows/desktop/dd389284(v=vs.85).aspx"/>. Use null/nothing as the default value.</param>
public MFSinkWriter(MFByteStream byteStream, MFAttributes attributes = null)
: this(MediaFoundationCore.CreateSinkWriterFromMFByteStreamNative(byteStream, attributes))
{
}
