MFCopy

re: MFCopy

Seth3D — Wed, 30 Dec 2009 07:57:06 GMT

Perfect; it works! Thanks for your help.

re: MFCopy

Marcelo A Garcia — Tue, 29 Dec 2009 23:16:48 GMT

You need to configure the audio renderer sink before calling MFCreateSinkWriterFromMediaSink; try the following (but remember to release the interfaces):

IMFMediaSink *pAudioRenderer = NULL;

IMFSinkWriter *pSink = NULL;

IMFStreamSink *pStreamSink = NULL;

IMFMediaTypeHandler *pMediaTypeHandler = NULL;

IMFMediaType *pMediaType = NULL;

EIF( MFCreateAudioRenderer(NULL, &pAudioRenderer) );

EIF( pAudioRenderer->GetStreamSinkByIndex(0, &pStreamSink) );

EIF( pStreamSink->GetMediaTypeHandler(&pMediaTypeHandler) );

EIF( MFCreateMediaType(&pMediaType) );

EIF( pMediaType->SetGUID(MF_MT_MAJOR_TYPE, MFMediaType_Audio) );

EIF( pMediaType->SetGUID(MF_MT_SUBTYPE, MFAudioFormat_PCM) );

EIF( pMediaType->SetUINT32(MF_MT_AUDIO_NUM_CHANNELS, 2) );

EIF( pMediaType->SetUINT32(MF_MT_AUDIO_SAMPLES_PER_SECOND, 44100) );

EIF( pMediaType->SetUINT32(MF_MT_AUDIO_BLOCK_ALIGNMENT, 4) );

EIF( pMediaType->SetUINT32(MF_MT_AUDIO_AVG_BYTES_PER_SECOND, 176400 ) );

EIF( pMediaType->SetUINT32(MF_MT_AUDIO_BITS_PER_SAMPLE, 16) );

EIF( pMediaType->SetUINT32(MF_MT_ALL_SAMPLES_INDEPENDENT, TRUE) );

EIF( pMediaTypeHandler->SetCurrentMediaType(pMediaType));

EIF( MFCreateSinkWriterFromMediaSink(pAudioRenderer, NULL, & pSink) );

re: MFCopy

Seth3D — Mon, 28 Dec 2009 03:21:37 GMT

I've got another question for you.

I'm trying to create a sink writer that uses an audio renderer underneath, but the creation of the sink writer is failing.

IMFMediaSink *speaker;

IMFSinkWriter *sink;

EIF(CoInitialize(NULL));

EIF(MFStartup(MF_VERSION));

EIF(MFCreateAudioRenderer(NULL, &speaker));

EIF(MFCreateSinkWriterFromMediaSink(speaker, NULL, &sink));

I also tried enumerating the audio devices on my machine and using the device ID, but it still fails on the sink writer line.

re: MFCopy

Seth3D — Sat, 26 Dec 2009 07:09:09 GMT

Perfect, thanks.

re: MFCopy

Marcelo A Garcia — Fri, 25 Dec 2009 19:36:24 GMT

Sink Writer supports editing metadata if the underlying Media Sink supports it. For WMV you need to call IMFSinkWriter::GetServiceForStream querying the IMFMetadataProvider interface of the ASF Media Sink.

More information:

http://msdn.microsoft.com/en-us/library/dd374649(VS.85).aspx

re: MFCopy

Seth3D — Sat, 19 Dec 2009 16:28:23 GMT

I'm using the sink writer in my projects. Is it possible to set WMV properties such as author, copyright, etc. in a programmatic way? I can't find any documentation on this.