public MFT_OUTPUT_STREAM_INFO GetOutputStreamInfo(uint streamIndex)
{
MFT_OUTPUT_STREAM_INFO streamInfo;
_mft.GetOutputStreamInfo(streamIndex, out streamInfo);
return(streamInfo);
}
//todo: put the process work to background thread to speed up.
public HResult ProcessSample(IMFSample videoSample)
{
HResult hr = HResult.S_OK;
MFTOutputStatusFlags mftOutFlags;
MFTOutputStreamInfo StreamInfo;
if (videoSample == null)
{
return(hr);
}
pDecoderTransform.ProcessInput(0, videoSample, 0);
pDecoderTransform.GetOutputStatus(out mftOutFlags);
pDecoderTransform.GetOutputStreamInfo(0, out StreamInfo);
while (true)
{
IMFMediaBuffer resultBuffer;
//reset the cache buffer.
MFExtern.MFCreateMemoryBuffer(StreamInfo.cbSize, out resultBuffer);
_mftOutSample.RemoveAllBuffers();
_mftOutSample.AddBuffer(resultBuffer);
ProcessOutputStatus outputStatus;
var mftProcessOutput = pDecoderTransform.ProcessOutput(0, 1, _mftOutBufferContainer, out outputStatus);
if (mftProcessOutput == HResult.MF_E_TRANSFORM_NEED_MORE_INPUT)
{
//continue provice input data.
break;
}
else if (_mftOutBufferContainer[0].dwStatus == MFTOutputDataBufferFlags.Incomplete)
{
//todo: the decoded data include more than one samples,we need to receive all data items.
}
else
{
IMFMediaBuffer buffer;
_mftOutSample.ConvertToContiguousBuffer(out buffer);
invokeDecodeComplete(buffer, StreamInfo.cbSize);
}
}
return(hr);
}
public HResult DecodeSample(byte[] inbuffer, int insize, out byte[] outbuff, out int outsize)
{
// Process Input.
MFTOutputDataBuffer outputDataBuffer;
ProcessOutputStatus processOutputStatus = 0;
IMFSample srcVideoSample;
HResult mftProcessOutput;
MFTOutputStreamInfo StreamInfo;
IMFSample mftOutSample;
IMFMediaBuffer pBuffer, srcBuffer;
Debug.WriteLine("Process sample...");
outbuff = null;
outsize = 0;
MFExtern.MFCreateSample(out srcVideoSample);
MFExtern.MFCreateMemoryBuffer(insize, out srcBuffer);
srcVideoSample.AddBuffer(srcBuffer);
IntPtr inputdata = IntPtr.Zero;
int reconBuffCurrLen = 0;
int reconBuffMaxLen = 0;
Debug.WriteLine("CONTINUE...1");
// move input data to decoder
srcBuffer.Lock(out inputdata, out reconBuffMaxLen, out reconBuffCurrLen);
Marshal.Copy(inbuffer, 0, inputdata, insize);
srcBuffer.Unlock();
srcBuffer.SetCurrentLength(insize);
decodertransform.ProcessInput(0, srcVideoSample, 0);
decodertransform.GetOutputStreamInfo(0, out StreamInfo);
while (true)
{
MFExtern.MFCreateSample(out mftOutSample);
MFExtern.MFCreateMemoryBuffer(StreamInfo.cbSize, out pBuffer);
mftOutSample.AddBuffer(pBuffer);
outputDataBuffer.dwStreamID = 0;
outputDataBuffer.dwStatus = MFTOutputDataBufferFlags.None;
outputDataBuffer.pEvents = null;
outputDataBuffer.pSample = Marshal.GetIUnknownForObject(mftOutSample);
MFTOutputDataBuffer[] odbs = { outputDataBuffer };
mftProcessOutput = decodertransform.ProcessOutput(MFTProcessOutputFlags.None, 1, odbs, out processOutputStatus);
if (mftProcessOutput != HResult.MF_E_TRANSFORM_NEED_MORE_INPUT)
{
IMFMediaBuffer buf;
int bufLength;
mftOutSample.ConvertToContiguousBuffer(out buf);
buf.GetCurrentLength(out bufLength);
IntPtr poutputData = IntPtr.Zero;
int buffCurrLen = 0;
int buffMaxLen = 0;
// get output data from decoder
buf.Lock(out poutputData, out buffMaxLen, out buffCurrLen);
outbuff = new byte[buffMaxLen];
Marshal.Copy(poutputData, outbuff, 0, buffCurrLen);
buf.Unlock();
outsize = buffCurrLen;
Debug.WriteLine("out put size: " + outsize + "\n");
Marshal.ReleaseComObject(buf);
Marshal.ReleaseComObject(mftOutSample);
}
else
{
break;
}
return(mftProcessOutput);
}
return(mftProcessOutput);
}