HRESULT GetSampleFromMFStreamer(/* out */ const vpx_codec_cx_pkt_t *& vpkt)
{
//printf("Get Sample...\n");
IMFSample *videoSample = NULL;
// Initial read results in a null pSample??
CHECK_HR(videoReader->ReadSample(
MF_SOURCE_READER_ANY_STREAM, // Stream index.
0, // Flags.
&streamIndex, // Receives the actual stream index.
&flags, // Receives status flags.
&llVideoTimeStamp, // Receives the time stamp.
&videoSample // Receives the sample or NULL.
), L"Error reading video sample.");
if (!videoSample)
{
printf("Failed to get video sample from MF.\n");
}
else
{
DWORD nCurrBufferCount = 0;
CHECK_HR(videoSample->GetBufferCount(&nCurrBufferCount), L"Failed to get the buffer count from the video sample.\n");
IMFMediaBuffer * pMediaBuffer;
CHECK_HR(videoSample->ConvertToContiguousBuffer(&pMediaBuffer), L"Failed to extract the video sample into a raw buffer.\n");
DWORD nCurrLen = 0;
CHECK_HR(pMediaBuffer->GetCurrentLength(&nCurrLen), L"Failed to get the length of the raw buffer holding the video sample.\n");
byte *imgBuff;
DWORD buffCurrLen = 0;
DWORD buffMaxLen = 0;
pMediaBuffer->Lock(&imgBuff, &buffMaxLen, &buffCurrLen);
/*BYTE *i420 = new BYTE[4608000];
YUY2ToI420(WIDTH, HEIGHT, STRIDE, imgBuff, i420);
vpx_image_t* img = vpx_img_wrap(&_rawImage, VIDEO_INPUT_FORMAT, _vpxConfig.g_w, _vpxConfig.g_h, 1, i420);*/
vpx_image_t* const img = vpx_img_wrap(&_rawImage, VIDEO_INPUT_FORMAT, _vpxConfig.g_w, _vpxConfig.g_h, 1, imgBuff);
const vpx_codec_cx_pkt_t * pkt;
vpx_enc_frame_flags_t flags = 0;
if (vpx_codec_encode(&_vpxCodec, &_rawImage, _sampleCount, 1, flags, VPX_DL_REALTIME)) {
printf("VPX codec failed to encode the frame.\n");
return -1;
}
else {
vpx_codec_iter_t iter = NULL;
while ((pkt = vpx_codec_get_cx_data(&_vpxCodec, &iter))) {
switch (pkt->kind) {
case VPX_CODEC_CX_FRAME_PKT:
vpkt = pkt; // const_cast<vpx_codec_cx_pkt_t **>(&pkt);
break;
default:
break;
}
printf("%s %i\n", pkt->kind == VPX_CODEC_CX_FRAME_PKT && (pkt->data.frame.flags & VPX_FRAME_IS_KEY) ? "K" : ".", pkt->data.frame.sz);
}
}
_sampleCount++;
vpx_img_free(img);
pMediaBuffer->Unlock();
pMediaBuffer->Release();
//delete i420;
videoSample->Release();
return S_OK;
}
}
// Process the incomming NAL from the queue: wraps it up into a
// IMFMediaSample, sends it to the decoder.
//
// Thread context: decoder thread
bool DecoderMF::DoProcessInputNAL(IBMDStreamingH264NALPacket* nalPacket)
{
bool ret = false;
HRESULT hr;
IMFMediaBuffer* newBuffer = NULL;
BYTE* newBufferPtr;
void* nalPacketPtr;
//
IMFSample* newSample = NULL;
ULONGLONG nalPresentationTime;
const BYTE nalPrefix[] = {0, 0, 0, 1};
// Get a pointer to the NAL data
hr = nalPacket->GetBytes(&nalPacketPtr);
if (FAILED(hr))
goto bail;
// Create the MF media buffer (+ 4 bytes for the NAL Prefix (0x00 0x00 0x00 0x01)
// which MF requires.
hr = MFCreateMemoryBuffer(nalPacket->GetPayloadSize()+4, &newBuffer);
if (FAILED(hr))
goto bail;
// Lock the MF media buffer
hr = newBuffer->Lock(&newBufferPtr, NULL, NULL);
if (FAILED(hr))
goto bail;
// Copy the prefix and the data
memcpy(newBufferPtr, nalPrefix, 4);
memcpy(newBufferPtr+4, nalPacketPtr, nalPacket->GetPayloadSize());
// Unlock the MF media buffer
hr = newBuffer->Unlock();
if (FAILED(hr))
goto bail;
// Update the current length of the MF media buffer
hr = newBuffer->SetCurrentLength(nalPacket->GetPayloadSize()+4);
if (FAILED(hr))
goto bail;
// We now have a IMFMediaBuffer with the contents of the NAL
// packet. We now construct a IMFSample with the buffer
hr = MFCreateSample(&newSample);
if (FAILED(hr))
goto bail;
hr = newSample->AddBuffer(newBuffer);
if (FAILED(hr))
goto bail;
// Get the presentation (display) time in 100-nanosecond units
// TODO: this is pretty meaningless without setting the start time.
hr = nalPacket->GetDisplayTime(1000 * 1000 * 10, &nalPresentationTime);
if (FAILED(hr))
goto bail;
// Set presentation time on the sample
hr = newSample->SetSampleTime(nalPresentationTime);
if (FAILED(hr))
goto bail;
// Now parse it to the decoder
for (;;)
{
hr = m_h264Decoder->ProcessInput(0, newSample, 0);
if (hr == S_OK)
break;
if (hr != MF_E_NOTACCEPTING || DoProcessOutput() == false)
goto bail;
}
ret = true;
bail:
if (newBuffer != NULL)
newBuffer->Release();
if (newSample != NULL)
newSample->Release();
return ret;
}
unsigned char *BBWin8Game::LoadAudioData( String path,int *length,int *channels,int *format,int *hertz ){
String url=PathToFilePath( path );
DXASS( MFStartup( MF_VERSION ) );
IMFAttributes *attrs;
DXASS( MFCreateAttributes( &attrs,1 ) );
DXASS( attrs->SetUINT32( MF_LOW_LATENCY,TRUE ) );
IMFSourceReader *reader;
DXASS( MFCreateSourceReaderFromURL( url.ToCString<wchar_t>(),attrs,&reader ) );
attrs->Release();
IMFMediaType *mediaType;
DXASS( MFCreateMediaType( &mediaType ) );
DXASS( mediaType->SetGUID( MF_MT_MAJOR_TYPE,MFMediaType_Audio ) );
DXASS( mediaType->SetGUID( MF_MT_SUBTYPE,MFAudioFormat_PCM ) );
DXASS( reader->SetCurrentMediaType( MF_SOURCE_READER_FIRST_AUDIO_STREAM,0,mediaType ) );
mediaType->Release();
IMFMediaType *outputMediaType;
DXASS( reader->GetCurrentMediaType( MF_SOURCE_READER_FIRST_AUDIO_STREAM,&outputMediaType ) );
WAVEFORMATEX *wformat;
uint32 formatByteCount=0;
DXASS( MFCreateWaveFormatExFromMFMediaType( outputMediaType,&wformat,&formatByteCount ) );
*channels=wformat->nChannels;
*format=wformat->wBitsPerSample/8;
*hertz=wformat->nSamplesPerSec;
CoTaskMemFree( wformat );
outputMediaType->Release();
/*
PROPVARIANT var;
DXASS( reader->GetPresentationAttribute( MF_SOURCE_READER_MEDIASOURCE,MF_PD_DURATION,&var ) );
LONGLONG duration=var.uhVal.QuadPart;
float64 durationInSeconds=(duration / (float64)(10000 * 1000));
m_maxStreamLengthInBytes=(uint32)( durationInSeconds * m_waveFormat.nAvgBytesPerSec );
*/
std::vector<unsigned char*> bufs;
std::vector<uint32> lens;
uint32 len=0;
for( ;; ){
uint32 flags=0;
IMFSample *sample;
DXASS( reader->ReadSample( MF_SOURCE_READER_FIRST_AUDIO_STREAM,0,0,reinterpret_cast<DWORD*>(&flags),0,&sample ) );
if( flags & MF_SOURCE_READERF_ENDOFSTREAM ){
break;
}
if( sample==0 ){
abort();
}
IMFMediaBuffer *mediaBuffer;
DXASS( sample->ConvertToContiguousBuffer( &mediaBuffer ) );
uint8 *audioData=0;
uint32 sampleBufferLength=0;
DXASS( mediaBuffer->Lock( &audioData,0,reinterpret_cast<DWORD*>( &sampleBufferLength ) ) );
unsigned char *buf=(unsigned char*)malloc( sampleBufferLength );
memcpy( buf,audioData,sampleBufferLength );
bufs.push_back( buf );
lens.push_back( sampleBufferLength );
len+=sampleBufferLength;
DXASS( mediaBuffer->Unlock() );
mediaBuffer->Release();
sample->Release();
}
reader->Release();
*length=len/(*channels * *format);
unsigned char *data=(unsigned char*)malloc( len );
unsigned char *p=data;
for( int i=0;i<bufs.size();++i ){
memcpy( p,bufs[i],lens[i] );
free( bufs[i] );
p+=lens[i];
}
gc_force_sweep=true;
return data;
}
void VideoCompressor::AudioSample32Bit2Channel(float *Samples, UINT FrameCount, UINT64 CaptureStartTime)
{
//double TimeInSeconds = _Clock->Elapsed();
const UINT SamplesPerSecond = 44100;
const UINT ChannelCount = 2;
const UINT SampleCount = FrameCount * ChannelCount;
const UINT BitsPerSample = 16;
const UINT BufferLength = BitsPerSample / 8 * ChannelCount * FrameCount;
const LONGLONG SampleDuration = LONGLONG(FrameCount) * LONGLONG(10000000) / SamplesPerSecond; // in hns
//
// Write some data
//
IMFSample *spSample;
IMFMediaBuffer *spBuffer;
BYTE *pbBuffer = NULL;
//
// Create a media sample
//
HRESULT hr = MFCreateSample( &spSample );
hr = spSample->SetSampleDuration( SampleDuration );
//hr = spSample->SetSampleTime( LONGLONG( TimeInSeconds * 10000000.0 ) );
//CaptureStartTime = 10,000,000 * t / f;
//t = CaptureStartTime * f / 10,000,000
LONGLONG FileStartCounter = _Clock->StartTime();
LONGLONG CaptureStartCounter = CaptureStartTime * _Clock->TicksPerSecond() / LONGLONG(10000000);
hr = spSample->SetSampleTime( ( CaptureStartCounter - FileStartCounter ) * LONGLONG(10000000) / _Clock->TicksPerSecond() );
//
// Add a media buffer filled with random data
//
hr = MFCreateMemoryBuffer( BufferLength, &spBuffer );
hr = spBuffer->SetCurrentLength( BufferLength );
hr = spSample->AddBuffer( spBuffer );
hr = spBuffer->Lock( &pbBuffer, NULL, NULL );
__int16 *OutputAudioBuffer = (__int16 *)pbBuffer;
for(UINT SampleIndex = 0; SampleIndex < SampleCount; SampleIndex++)
{
//
// Floats are in the range -1 to 1
//
OutputAudioBuffer[SampleIndex] = int(Samples[SampleIndex] * 32768.0f);
}
hr = spBuffer->Unlock();
//
// Write the media sample
//
hr = _Writer->WriteSample( 1, spSample );
PersistentAssert(SUCCEEDED(hr), "WriteSample failed");
spSample->Release();
spBuffer->Release();
}
