/// <summary>
/// Retrieves the characteristics of the byte stream.
/// </summary>
/// <param name="capabilities">Receives a bitwise OR of zero or more flags.</param>
/// <returns>HRESULT</returns>
/// <remarks>Use the <see cref="Capabilities"/> property for easier usage with automated error handling.</remarks>
public unsafe int GetCapabilitiesNative(out MFByteStreamCapsFlags capabilities)
{
fixed(void *p = &capabilities)
{
return(InteropCalls.CalliMethodPtr(UnsafeBasePtr, p, ((void **)(*(void **)UnsafeBasePtr))[3]));
}
}
protected void SetTargetStream(Stream stream, MFMediaType inputMediaType, MFMediaType targetMediaType, Guid containerType)
{
IMFAttributes attributes = null;
try
{
_targetStream = MediaFoundationCore.IStreamToByteStream(new ComStream(stream));
MFByteStreamCapsFlags flags = MFByteStreamCapsFlags.None;
int result = _targetStream.GetCapabilities(ref flags);
attributes = MediaFoundationCore.CreateEmptyAttributes(2);
attributes.SetUINT32(MediaFoundationAttributes.MF_READWRITE_ENABLE_HARDWARE_TRANSFORMS, 1);
attributes.SetGUID(MediaFoundationAttributes.MF_TRANSCODE_CONTAINERTYPE, containerType);
_sinkWriter = MediaFoundationCore.CreateSinkWriterFromMFByteStream(_targetStream, attributes);
_streamIndex = _sinkWriter.AddStream(targetMediaType);
_sinkWriter.SetInputMediaType(_streamIndex, inputMediaType, null);
_inputMediaType = inputMediaType;
_targetMediaType = targetMediaType;
_sourceBytesPerSecond = inputMediaType.AverageBytesPerSecond;
//initialize the sinkwriter
_sinkWriter.BeginWriting();
}
catch (Exception)
{
if (_sinkWriter != null)
{
_sinkWriter.Dispose();
_sinkWriter = null;
}
if (_targetStream != null)
{
_targetStream.Close();
Marshal.ReleaseComObject(_targetStream);
_targetStream = null;
}
throw;
}
finally
{
if (attributes != null)
{
Marshal.ReleaseComObject(attributes);
}
}
}
/// <summary>
/// Retrieves the characteristics of the byte stream.
/// </summary>
/// <param name="capabilities">Receives a bitwise OR of zero or more flags.</param>
/// <returns>HRESULT</returns>
/// <remarks>Use the <see cref="Capabilities"/> property for easier usage with automated error handling.</remarks>
public unsafe int GetCapabilitiesNative(out MFByteStreamCapsFlags capabilities)
{
fixed (void* p = &capabilities)
{
return InteropCalls.CalliMethodPtr(UnsafeBasePtr, p, ((void**) (*(void**) UnsafeBasePtr))[3]);
}
}
