HRESULT
WWMFResampler::GetSampleDataFromMFTransform(WWMFSampleData *sampleData_return)
{
HRESULT hr = S_OK;
IMFMediaBuffer *pBuffer = NULL;
MFT_OUTPUT_STREAM_INFO streamInfo;
MFT_OUTPUT_DATA_BUFFER outputDataBuffer;
DWORD dwStatus;
memset(&streamInfo, 0, sizeof streamInfo);
memset(&outputDataBuffer, 0, sizeof outputDataBuffer);
assert(sampleData_return);
assert(NULL == sampleData_return->data);
HRG(MFCreateSample(&(outputDataBuffer.pSample)));
HRG(MFCreateMemoryBuffer(sampleData_return->bytes, &pBuffer));
HRG(outputDataBuffer.pSample->AddBuffer(pBuffer));
outputDataBuffer.dwStreamID = 0;
outputDataBuffer.dwStatus = 0;
outputDataBuffer.pEvents = NULL;
hr = m_pTransform->ProcessOutput(0, 1, &outputDataBuffer, &dwStatus);
if (FAILED(hr)) {
goto end;
}
HRG(ConvertMFSampleToWWSampleData(outputDataBuffer.pSample, sampleData_return));
end:
SafeRelease(&pBuffer);
SafeRelease(&outputDataBuffer.pSample);
return hr;
}
HRESULT
WWMFResampler::ConvertWWSampleDataToMFSample(WWMFSampleData &sampleData, IMFSample **ppSample)
{
HRESULT hr = S_OK;
IMFSample *pSample = NULL;
#ifdef USE_ATL
CComPtr<IMFMediaBuffer> spBuffer;
#else // USE_ATL
IMFMediaBuffer *spBuffer = NULL;
#endif // USE_ATL
BYTE *pByteBufferTo = NULL;
//LONGLONG hnsSampleDuration;
//LONGLONG hnsSampleTime;
int frameCount;
assert(ppSample);
*ppSample = NULL;
HRG(MFCreateMemoryBuffer(sampleData.bytes, &spBuffer));
HRG(spBuffer->Lock(&pByteBufferTo, NULL, NULL));
memcpy(pByteBufferTo, sampleData.data, sampleData.bytes);
pByteBufferTo = NULL;
HRG(spBuffer->Unlock());
HRG(spBuffer->SetCurrentLength(sampleData.bytes));
HRG(MFCreateSample(&pSample));
HRG(pSample->AddBuffer(spBuffer));
frameCount = sampleData.bytes / m_inputFormat.FrameBytes();
/*
hnsSampleDuration = (LONGLONG)(10.0 * 1000 * 1000 * frameCount / m_inputFormat.sampleRate);
hnsSampleTime = (LONGLONG)(10.0 * 1000 * 1000 * m_inputFrameTotal / m_inputFormat.sampleRate);
HRG(pSample->SetSampleDuration(hnsSampleDuration));
HRG(pSample->SetSampleTime(hnsSampleTime));
*/
m_inputFrameTotal += frameCount;
// succeeded.
*ppSample = pSample;
pSample = NULL; //< prevent release
end:
SafeRelease(&pSample);
#ifndef USE_ATL
SafeRelease(&spBuffer);
#endif // uSE_ATL
return hr;
}
HRESULT VideoEncoder::WriteTransitionSample(UINT64 sampleDuration, TransitionBase* pTransition, DWORD streamIndex, LONGLONG* startTime)
{
HRESULT hr = S_OK;
IMFMediaBuffer* pMediaBuffer = nullptr;
BYTE* pFrameBuffer = nullptr;
IMFSample* pSample = nullptr;
BYTE* pOutputFrame = nullptr;
for (DWORD i = 0; i < sampleDuration; i++)
{
CheckHR(MFCreateMemoryBuffer(this->m_frameBufferSize, &pMediaBuffer));
pMediaBuffer->Lock(&pFrameBuffer, nullptr, nullptr);
float time = (float)i / (float)sampleDuration;
pOutputFrame = pTransition->GetOutputFrame(time);
CheckHR(MFCopyImage(pFrameBuffer, this->m_frameStride, pOutputFrame, this->m_frameStride, this->m_frameStride, this->m_frameHeight));
CheckHR(pMediaBuffer->Unlock());
CheckHR(pMediaBuffer->SetCurrentLength(this->m_frameBufferSize));
CheckHR(MFCreateSample(&pSample));
CheckHR(pSample->AddBuffer(pMediaBuffer));
CheckHR(pSample->SetSampleTime(*startTime));
CheckHR(pSample->SetSampleDuration(this->GetFrameDuration()));
CheckHR(this->m_pSinkWriter->WriteSample(streamIndex, pSample));
(*startTime) += this->GetFrameDuration();
// 释放示例资源.
SafeRelease(&pMediaBuffer);
SafeRelease(&pSample);
if (pOutputFrame != nullptr)
{
delete pOutputFrame;
pOutputFrame = nullptr;
}
}
cleanup:
if (!SUCCEEDED(hr))
{
DWORD error = GetLastError();
this->m_logFileStream << "意外错误: " << error << endl;
}
SafeRelease(&pMediaBuffer);
SafeRelease(&pSample);
if (pOutputFrame != nullptr)
{
delete pOutputFrame;
pOutputFrame = nullptr;
}
return hr;
}
HRESULT CASFManager::ReadDataIntoBuffer(
IMFByteStream *pStream, // Pointer to the byte stream.
DWORD cbOffset, // Offset at which to start reading
DWORD cbToRead, // Number of bytes to read
IMFMediaBuffer **ppBuffer // Receives a pointer to the buffer.
)
{
HRESULT hr = S_OK;
BYTE *pData = NULL;
DWORD cbRead = 0; // Actual amount of data read
IMFMediaBuffer *pBuffer = NULL;
// Create the media buffer. This function allocates the memory.
CHECK_HR(hr = MFCreateMemoryBuffer(cbToRead, &pBuffer));
// Access the buffer.
CHECK_HR(hr = pBuffer->Lock(&pData, NULL, NULL));
//Set the offset
CHECK_HR(hr = pStream->SetCurrentPosition(cbOffset));
// Read the data from the byte stream.
CHECK_HR(hr = pStream->Read(pData, cbToRead, &cbRead));
CHECK_HR(hr = pBuffer->Unlock());
pData = NULL;
// Update the size of the valid data.
CHECK_HR(hr = pBuffer->SetCurrentLength(cbRead));
// Return the pointer to the caller.
*ppBuffer = pBuffer;
(*ppBuffer)->AddRef();
TRACE((L"Read data from the ASF file into a media buffer.\n"));
done:
LOG_MSG_IF_FAILED(L"CASFManager::ReadDataIntoBuffer failed.\n", hr);
if (pData)
{
pBuffer->Unlock();
}
SAFE_RELEASE(pBuffer);
return hr;
}
//-------------------------------------------------------------------
// Get a buffer to write data into
//
HRESULT VidWriter::getWriteBuffer(BYTE **ppData)
{
HRESULT hr;
const DWORD cbBuffer = 4 * m_width * m_height;
// Create a new memory buffer
SafeRelease(&m_pBuffer);
hr = MFCreateMemoryBuffer(cbBuffer, &m_pBuffer);
if (FAILED(hr)) goto done;
// Lock the buffer
hr = m_pBuffer->Lock(ppData, NULL, NULL);
done:
return hr;
}
HRESULT GDISampleProvider::GetSample(IMFSample** ppSample) const
{
BOOL b = BitBlt(hDest, 0, 0, width, height, hdc, 0, 0, SRCCOPY);
assert(b);
BYTE * pixels;
IMFMediaBufferPtr pBuffer;
HRESULT hr = MFCreateMemoryBuffer(length, &pBuffer);
BITMAPINFOHEADER bi;
bi.biSize = sizeof(BITMAPINFOHEADER);
bi.biWidth = width;
bi.biHeight = height;
bi.biPlanes = 1;
bi.biBitCount = 32;
bi.biCompression = BI_RGB;
bi.biSizeImage = 0;
bi.biXPelsPerMeter = 0;
bi.biYPelsPerMeter = 0;
bi.biClrUsed = 0;
bi.biClrImportant = 0;
if (SUCCEEDED(hr))
hr = pBuffer->Lock(&pixels, nullptr, nullptr);
if (SUCCEEDED(hr))
GetDIBits(hdc, hbDesktop, 0, height, pixels, reinterpret_cast<BITMAPINFO*>(&bi), DIB_RGB_COLORS);
if (SUCCEEDED(hr))
hr = pBuffer->Unlock();
if (SUCCEEDED(hr))
hr = pBuffer->SetCurrentLength(cbWidth * VIDEO_HEIGHT);
if (SUCCEEDED(hr))
hr = MFCreateVideoSampleFromSurface(nullptr, ppSample);
if (SUCCEEDED(hr))
hr = (*ppSample)->AddBuffer(pBuffer);
return hr;
}
// 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;
}
HRESULT WavStream::CreateAudioSample(IMFSample **ppSample)
{
HRESULT hr = S_OK;
IMFMediaBuffer *pBuffer = NULL;
IMFSample *pSample = NULL;
DWORD cbBuffer = 0;
BYTE *pData = NULL;
LONGLONG duration = 0;
// Start with one second of data, rounded up to the nearest block.
cbBuffer = AlignUp<DWORD>(m_pRiff->Format()->nAvgBytesPerSec, m_pRiff->Format()->nBlockAlign);
// Don't request any more than what's left.
cbBuffer = min(cbBuffer, m_pRiff->BytesRemainingInChunk());
// Create the buffer.
hr = MFCreateMemoryBuffer(cbBuffer, &pBuffer);
// Get a pointer to the buffer memory.
if (SUCCEEDED(hr))
{
hr = pBuffer->Lock(&pData, NULL, NULL);
}
// Fill the buffer
if (SUCCEEDED(hr))
{
hr = m_pRiff->ReadDataFromChunk(pData, cbBuffer);
}
// Unlock the buffer.
if (SUCCEEDED(hr))
{
hr = pBuffer->Unlock();
pData = NULL;
}
// Set the size of the valid data in the buffer.
if (SUCCEEDED(hr))
{
hr = pBuffer->SetCurrentLength(cbBuffer);
}
// Create a new sample and add the buffer to it.
if (SUCCEEDED(hr))
{
hr = MFCreateSample(&pSample);
}
if (SUCCEEDED(hr))
{
hr = pSample->AddBuffer(pBuffer);
}
// Set the time stamps, duration, and sample flags.
if (SUCCEEDED(hr))
{
hr = pSample->SetSampleTime(m_rtCurrentPosition);
}
if (SUCCEEDED(hr))
{
duration = AudioDurationFromBufferSize(m_pRiff->Format(), cbBuffer);
hr = pSample->SetSampleDuration(duration);
}
// Set the discontinuity flag.
if (SUCCEEDED(hr))
{
if (m_discontinuity)
{
hr = pSample->SetUINT32(MFSampleExtension_Discontinuity, TRUE);
}
}
if (SUCCEEDED(hr))
{
// Update our current position.
m_rtCurrentPosition += duration;
// Give the pointer to the caller.
*ppSample = pSample;
(*ppSample)->AddRef();
}
if (pData && pBuffer)
{
hr = pBuffer->Unlock();
}
SafeRelease(&pBuffer);
SafeRelease(&pSample);
return hr;
}
void MfVideoEncoder::WriteFrame(uint8_t* data, int stride) {
CComPtr<IMFSample> pSample;
CComPtr<IMFMediaBuffer> pBuffer;
const LONG cbWidth = 4 * mWidth;
const DWORD cbBuffer = cbWidth * mHeight;
BYTE *pData = NULL;
// Create a new memory buffer.
HRESULT hr = MFCreateMemoryBuffer(cbBuffer, &pBuffer);
// Lock the buffer and copy the video frame to the buffer.
if (SUCCEEDED(hr))
{
hr = pBuffer->Lock(&pData, NULL, NULL);
}
if (SUCCEEDED(hr))
{
hr = MFCopyImage(
pData, // Destination buffer.
cbWidth, // Destination stride.
(BYTE*)data, // First row in source image.
stride, // Source stride.
cbWidth, // Image width in bytes.
mHeight // Image height in pixels.
);
}
if (pBuffer)
{
pBuffer->Unlock();
}
// Set the data length of the buffer.
if (SUCCEEDED(hr))
{
hr = pBuffer->SetCurrentLength(cbBuffer);
}
// Create a media sample and add the buffer to the sample.
if (SUCCEEDED(hr))
{
hr = MFCreateSample(&pSample);
}
if (SUCCEEDED(hr))
{
hr = pSample->AddBuffer(pBuffer);
}
// Set the time stamp and the duration.
if (SUCCEEDED(hr))
{
hr = pSample->SetSampleTime(mCurrentTime);
}
if (SUCCEEDED(hr))
{
hr = pSample->SetSampleDuration(mFrameTime);
}
// Send the sample to the Sink Writer.
if (SUCCEEDED(hr))
{
hr = mSinkWriter->WriteSample(mStreamIndex, pSample);
}
if (!SUCCEEDED(hr)) {
throw TempleException("Unable to write video frame: {}", hr);
}
mCurrentTime += mFrameTime;
}
void EncodeTransform::Init(int width, int height)
{
VTUNE_TASK(g_pDomain, "Encoder Init");
mStreamHeight = height;
mStreamWidth = width;
mCompressedBuffer = new DWORD[(width*height) / 2];
HRESULT hr = CoInitializeEx(NULL, COINIT_APARTMENTTHREADED);
if (SUCCEEDED(hr) || (FAILED(hr) && hr == RPC_E_CHANGED_MODE))
{
hr = FindEncoder(MFVideoFormat_H264);
if (FAILED(hr))
{
std::cout << "failed to find/Create specified encoder mft" << std::endl;
}
// set the media output info
hr = SetOutputMediaType();
if (FAILED(hr))
{
std::cout << "failed to SetOutputMediaType " << std::endl;
}
// set the media input info
hr = SetInputMediaType();
if (FAILED(hr))
{
std::cout << "failed to SetInputMediaType" << std::endl;
}
// query media input stream info
hr = QueryInputStreamInfo();
if (FAILED(hr))
{
std::cout << "failed to QueryInputStreamInfo" << std::endl;
}
{ //used to be NUM_PIXELS_YUY2 * 4
HRESULT hr = MFCreateMemoryBuffer((mStreamWidth*mStreamHeight) * 2, &mpInputBuffer);
if (FAILED(hr))
{
std::cout << "Failed to MFCreateMemoryBuffer" << std::endl;
}
hr = MFCreateSample(&pSampleProcIn);
if (FAILED(hr))
{
std::cout << "Failed to MFCreateSample" << std::endl;
}
hr = pSampleProcIn->AddBuffer(mpInputBuffer);
if (FAILED(hr))
{
std::cout << "Failed to AddBuffer to sample" << std::endl;
}
}
{ //used to be NUM_PIXELS_YUY2 * 4
hr = MFCreateMemoryBuffer(mStreamWidth * mStreamWidth * 2, &mpEncodedBuffer);
if (FAILED(hr))
{
std::cout << "Failed to MFCreateMemoryBuffer" << std::endl;
}
hr = MFCreateSample(&pSampleProcOut);
if (FAILED(hr))
{
std::cout << "Failed to MFCreateSample" << std::endl;
}
hr = pSampleProcOut->AddBuffer(mpEncodedBuffer);
if (FAILED(hr))
{
std::cout << "Failed to AddBuffer to sample" << std::endl;
}
}
}
}
VideoCompressorResult VideoCompressor::OpenFile(const String &Filename, UINT Width, UINT Height, UINT BitRate, UINT FrameRate, UINT AudioDeviceIndex, Clock *Timer)
{
VideoCompressorResult Result = VideoCompressorResultSuccess;
_Width = Width;
_Height = Height;
_CapturingAudio = (AudioDeviceIndex != 0xFFFFFFFF);
_Clock = Timer;
HRESULT hr = CoInitializeEx(NULL, COINIT_APARTMENTTHREADED | COINIT_DISABLE_OLE1DDE);
//PersistentAssert(SUCCEEDED(hr), "CoInitializeEx failed");
hr = MFStartup(MF_VERSION);
PersistentAssert(SUCCEEDED(hr), "MFStartup failed");
hr = MFCreateSinkWriterFromURL(
UnicodeString(Filename).CString(),
NULL,
NULL,
&_Writer
);
PersistentAssert(SUCCEEDED(hr), "MFCreateSinkWriterFromURL failed");
const UINT RawBufferSize = Width * Height * 4;
IMFMediaType *OutputMediaType;
MFCreateMediaType(&OutputMediaType);
InitMediaType(OutputMediaType, MFVideoFormat_H264, BitRate, Width, Height, FrameRate);
IMFMediaType *InputMediaType;
MFCreateMediaType(&InputMediaType);
InitMediaType(InputMediaType, MFVideoFormat_RGB32, RawBufferSize, Width, Height, FrameRate);
DWORD VideoStreamIndex;
hr = _Writer->AddStream(OutputMediaType, &VideoStreamIndex);
PersistentAssert(SUCCEEDED(hr), "AddStream failed");
OutputMediaType->Release();
/*hr = MFTRegisterLocalByCLSID(
__uuidof(CColorConvertDMO),
MFT_CATEGORY_VIDEO_PROCESSOR,
L"",
MFT_ENUM_FLAG_SYNCMFT,
0,
NULL,
0,
NULL
);
PersistentAssert(SUCCEEDED(hr), "MFTRegisterLocalByCLSID failed");*/
hr = _Writer->SetInputMediaType(VideoStreamIndex, InputMediaType, NULL);
InputMediaType->Release();
if(FAILED(hr))
{
if(Width > 1920 || Height > 1080)
{
MessageBox(NULL, "The maximum resolution for H.264 video is 1920x1080.", "Invalid Window Dimensions", MB_OK | MB_ICONERROR);
}
else
{
MessageBox(NULL, "There was an error when attempting to initialize video capture. The maximum resolution for H.264 video is 1920x1080.", "Invalid Window Dimensions", MB_OK | MB_ICONERROR);
}
_Writer->Release();
_Writer = NULL;
_Clock = NULL;
return VideoCompressorResultFailure;
}
if(_CapturingAudio)
{
//
// Setup the output media type
//
IMFMediaType *OutputAudioType;
hr = MFCreateMediaType( &OutputAudioType );
PersistentAssert(SUCCEEDED(hr), "MFCreateMediaType failed");
const UINT SamplesPerSecond = 44100;
const UINT AverageBytesPerSecond = 24000;
const UINT ChannelCount = 2;
const UINT BitsPerSample = 16;
OutputAudioType->SetGUID( MF_MT_MAJOR_TYPE, MFMediaType_Audio ) ;
OutputAudioType->SetGUID( MF_MT_SUBTYPE, MFAudioFormat_AAC ) ;
OutputAudioType->SetUINT32( MF_MT_AUDIO_SAMPLES_PER_SECOND, SamplesPerSecond ) ;
OutputAudioType->SetUINT32( MF_MT_AUDIO_BITS_PER_SAMPLE, BitsPerSample ) ;
OutputAudioType->SetUINT32( MF_MT_AUDIO_NUM_CHANNELS, ChannelCount ) ;
OutputAudioType->SetUINT32( MF_MT_AUDIO_AVG_BYTES_PER_SECOND, AverageBytesPerSecond ) ;
OutputAudioType->SetUINT32( MF_MT_AUDIO_BLOCK_ALIGNMENT, 1 ) ;
//OutputAudioType->SetUINT32( MF_MT_AAC_AUDIO_PROFILE_LEVEL_INDICATION, 0x29 ) ;
DWORD AudioStreamIndex;
hr = _Writer->AddStream( OutputAudioType, &AudioStreamIndex );
PersistentAssert(SUCCEEDED(hr), "AddStream failed");
//
// Setup the input media type
//
IMFMediaType *InputAudioType;
MFCreateMediaType( &InputAudioType );
InputAudioType->SetGUID( MF_MT_MAJOR_TYPE, MFMediaType_Audio );
InputAudioType->SetGUID( MF_MT_SUBTYPE, MFAudioFormat_PCM );
InputAudioType->SetUINT32( MF_MT_AUDIO_BITS_PER_SAMPLE, BitsPerSample );
InputAudioType->SetUINT32( MF_MT_AUDIO_SAMPLES_PER_SECOND, SamplesPerSecond );
InputAudioType->SetUINT32( MF_MT_AUDIO_NUM_CHANNELS, ChannelCount );
hr = _Writer->SetInputMediaType( AudioStreamIndex, InputAudioType, NULL );
PersistentAssert(SUCCEEDED(hr), "SetInputMediaType failed");
_AudioCapture.StartCapture(this, AudioDeviceIndex);
}
hr = _Writer->BeginWriting();
PersistentAssert(SUCCEEDED(hr), "BeginWriting failed");
hr = MFCreateSample(&_Sample);
PersistentAssert(SUCCEEDED(hr), "MFCreateSample failed");
hr = MFCreateMemoryBuffer(RawBufferSize, &_Buffer);
_Buffer->SetCurrentLength(RawBufferSize);
_Sample->AddBuffer(_Buffer);
return Result;
}
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();
}
virtual void doGetNextFrame()
{
if (!_isInitialised)
{
_isInitialised = true;
if (!initialise())
{
printf("Video device initialisation failed, stopping.");
return;
}
}
if (!isCurrentlyAwaitingData()) return;
DWORD processOutputStatus = 0;
IMFSample *videoSample = NULL;
DWORD streamIndex, flags;
LONGLONG llVideoTimeStamp, llSampleDuration;
HRESULT mftProcessInput = S_OK;
HRESULT mftProcessOutput = S_OK;
MFT_OUTPUT_STREAM_INFO StreamInfo;
IMFMediaBuffer *pBuffer = NULL;
IMFSample *mftOutSample = NULL;
DWORD mftOutFlags;
bool frameSent = false;
CHECK_HR(_videoReader->ReadSample(
MF_SOURCE_READER_FIRST_VIDEO_STREAM,
0, // Flags.
&streamIndex, // Receives the actual stream index.
&flags, // Receives status flags.
&llVideoTimeStamp, // Receives the time stamp.
&videoSample // Receives the sample or NULL.
), "Error reading video sample.");
if (videoSample)
{
_frameCount++;
CHECK_HR(videoSample->SetSampleTime(llVideoTimeStamp), "Error setting the video sample time.\n");
CHECK_HR(videoSample->GetSampleDuration(&llSampleDuration), "Error getting video sample duration.\n");
// Pass the video sample to the H.264 transform.
CHECK_HR(_pTransform->ProcessInput(0, videoSample, 0), "The resampler H264 ProcessInput call failed.\n");
CHECK_HR(_pTransform->GetOutputStatus(&mftOutFlags), "H264 MFT GetOutputStatus failed.\n");
if (mftOutFlags == MFT_OUTPUT_STATUS_SAMPLE_READY)
{
printf("Sample ready.\n");
CHECK_HR(_pTransform->GetOutputStreamInfo(0, &StreamInfo), "Failed to get output stream info from H264 MFT.\n");
CHECK_HR(MFCreateSample(&mftOutSample), "Failed to create MF sample.\n");
CHECK_HR(MFCreateMemoryBuffer(StreamInfo.cbSize, &pBuffer), "Failed to create memory buffer.\n");
CHECK_HR(mftOutSample->AddBuffer(pBuffer), "Failed to add sample to buffer.\n");
while (true)
{
_outputDataBuffer.dwStreamID = 0;
_outputDataBuffer.dwStatus = 0;
_outputDataBuffer.pEvents = NULL;
_outputDataBuffer.pSample = mftOutSample;
mftProcessOutput = _pTransform->ProcessOutput(0, 1, &_outputDataBuffer, &processOutputStatus);
if (mftProcessOutput != MF_E_TRANSFORM_NEED_MORE_INPUT)
{
CHECK_HR(_outputDataBuffer.pSample->SetSampleTime(llVideoTimeStamp), "Error setting MFT sample time.\n");
CHECK_HR(_outputDataBuffer.pSample->SetSampleDuration(llSampleDuration), "Error setting MFT sample duration.\n");
IMFMediaBuffer *buf = NULL;
DWORD bufLength;
CHECK_HR(_outputDataBuffer.pSample->ConvertToContiguousBuffer(&buf), "ConvertToContiguousBuffer failed.\n");
CHECK_HR(buf->GetCurrentLength(&bufLength), "Get buffer length failed.\n");
BYTE * rawBuffer = NULL;
auto now = GetTickCount();
printf("Writing sample %i, spacing %I64dms, sample time %I64d, sample duration %I64d, sample size %i.\n", _frameCount, now - _lastSendAt, llVideoTimeStamp, llSampleDuration, bufLength);
fFrameSize = bufLength;
fDurationInMicroseconds = 0;
gettimeofday(&fPresentationTime, NULL);
buf->Lock(&rawBuffer, NULL, NULL);
memmove(fTo, rawBuffer, fFrameSize);
FramedSource::afterGetting(this);
buf->Unlock();
SafeRelease(&buf);
frameSent = true;
_lastSendAt = GetTickCount();
}
SafeRelease(&pBuffer);
SafeRelease(&mftOutSample);
break;
}
}
else {
printf("No sample.\n");
}
SafeRelease(&videoSample);
}
if (!frameSent)
{
envir().taskScheduler().triggerEvent(eventTriggerId, this);
}
return;
done:
printf("MediaFoundationH264LiveSource doGetNextFrame failed.\n");
}
STDMETHODIMP MFTransform::ProcessOutput(DWORD dwFlags, DWORD cOutputBufferCount, MFT_OUTPUT_DATA_BUFFER *pOutputSamples, DWORD *pdwStatus)
{
if (dwFlags != 0)
return E_INVALIDARG;
if (pOutputSamples == NULL || pdwStatus == NULL)
return E_POINTER;
if (cOutputBufferCount != 1)
return E_INVALIDARG;
QMutexLocker locker(&m_mutex);
if (!m_sample)
return MF_E_TRANSFORM_NEED_MORE_INPUT;
IMFMediaBuffer *input = NULL;
IMFMediaBuffer *output = NULL;
DWORD sampleLength = 0;
m_sample->GetTotalLength(&sampleLength);
// If the sample length is null, it means we're getting DXVA buffers.
// In that case just pass on the sample we got as input.
// Otherwise we need to copy the input buffer into the buffer the sink
// is giving us.
if (pOutputSamples[0].pSample && sampleLength > 0) {
if (FAILED(m_sample->ConvertToContiguousBuffer(&input)))
goto done;
if (FAILED(pOutputSamples[0].pSample->ConvertToContiguousBuffer(&output)))
goto done;
DWORD inputLength = 0;
DWORD outputLength = 0;
input->GetMaxLength(&inputLength);
output->GetMaxLength(&outputLength);
if (outputLength < inputLength) {
pOutputSamples[0].pSample->RemoveAllBuffers();
output->Release();
output = NULL;
if (SUCCEEDED(MFCreateMemoryBuffer(inputLength, &output)))
pOutputSamples[0].pSample->AddBuffer(output);
}
if (output)
m_sample->CopyToBuffer(output);
LONGLONG hnsDuration = 0;
LONGLONG hnsTime = 0;
if (SUCCEEDED(m_sample->GetSampleDuration(&hnsDuration)))
pOutputSamples[0].pSample->SetSampleDuration(hnsDuration);
if (SUCCEEDED(m_sample->GetSampleTime(&hnsTime)))
pOutputSamples[0].pSample->SetSampleTime(hnsTime);
} else {
if (pOutputSamples[0].pSample)
pOutputSamples[0].pSample->Release();
pOutputSamples[0].pSample = m_sample;
pOutputSamples[0].pSample->AddRef();
}
done:
pOutputSamples[0].dwStatus = 0;
*pdwStatus = 0;
m_sample->Release();
m_sample = 0;
if (input)
input->Release();
if (output)
output->Release();
return S_OK;
}
