// MSDN
static DWORD CalculateMaxAudioDataSize(
IMFMediaType *pAudioType, // The PCM audio format.
DWORD cbHeader, // The size of the WAVE file header.
DWORD msecAudioData // Maximum duration, in milliseconds.
)
{
UINT32 cbBlockSize = 0; // Audio frame size, in bytes.
UINT32 cbBytesPerSecond = 0; // Bytes per second.
// Get the audio block size and number of bytes/second from the audio format.
cbBlockSize = MFGetAttributeUINT32(pAudioType, MF_MT_AUDIO_BLOCK_ALIGNMENT, 0);
cbBytesPerSecond = MFGetAttributeUINT32(pAudioType, MF_MT_AUDIO_AVG_BYTES_PER_SECOND, 0);
// Calculate the maximum amount of audio data to write.
// This value equals (duration in seconds x bytes/second), but cannot
// exceed the maximum size of the data chunk in the WAVE file.
// Size of the desired audio clip in bytes:
DWORD cbAudioClipSize = (DWORD)MulDiv(cbBytesPerSecond, msecAudioData, 1000);
// Largest possible size of the data chunk:
DWORD cbMaxSize = MAXDWORD - cbHeader;
// Maximum size altogether.
cbAudioClipSize = min(cbAudioClipSize, cbMaxSize);
// Round to the audio block size, so that we do not write a partial audio frame.
cbAudioClipSize = (cbAudioClipSize / cbBlockSize) * cbBlockSize;
return cbAudioClipSize;
}
bool FFmpegDecodeServices::VerifyVideoMediaType(IMFMediaType* pMediaType)
{
GUID subType = GUID_NULL;
pMediaType->GetGUID(MF_MT_SUBTYPE, &subType);
UINT32 width = 0, height = 0;
MFGetAttributeSize(pMediaType, MF_MT_FRAME_SIZE, &width, &height);
if (width == 0 ||
height == 0)
return false;
if (subType == MFVideoFormat_H264 || subType == MFVideoFormat_HEVC ||
subType == MFVideoFormat_MPG1 || subType == MFVideoFormat_MPEG2) {
if ((MFGetAttributeUINT32(pMediaType, MF_MT_MPEG2_PROFILE, 0) == 0 ||
MFGetAttributeUINT32(pMediaType, MF_MT_MPEG2_LEVEL, 0) == 0) &&
subType != MFVideoFormat_MPG1)
return false;
UINT32 seqSize = 0;
pMediaType->GetBlobSize(MF_MT_MPEG_SEQUENCE_HEADER, &seqSize);
if (seqSize == 0)
return false;
}
return true;
}
bool FFmpegDecodeServices::VerifyAudioMediaType(IMFMediaType* pMediaType)
{
if (MFGetAttributeUINT32(pMediaType, MF_MT_AUDIO_NUM_CHANNELS, 0) == 0)
return false;
if (MFGetAttributeUINT32(pMediaType, MF_MT_AUDIO_SAMPLES_PER_SECOND, 0) < 8000)
return false;
if (MFGetAttributeUINT32(pMediaType, MF_MT_AUDIO_BITS_PER_SAMPLE, 0) > 32)
return false;
return true;
}
HRESULT MediaInfo::InternalInitVideo(IMFMediaType* mediaType, StreamInfo& info)
{
MFGetAttributeSize(mediaType, MF_MT_FRAME_SIZE, &info.video.width, &info.video.height);
MFGetAttributeRatio(mediaType, MF_MT_PIXEL_ASPECT_RATIO, &info.video.pixelAR0, &info.video.pixelAR1);
UINT32 fps_den = 0, fps_num = 0;
MFGetAttributeRatio(mediaType, MF_MT_FRAME_RATE, &fps_num, &fps_den);
info.video.frameRate = float(fps_num) / float(fps_den);
info.video.fps_den = fps_den;
info.video.fps_num = fps_num;
info.video.profile = MFGetAttributeUINT32(mediaType, MF_MT_MPEG2_PROFILE, 0);
info.video.profileLevel = MFGetAttributeUINT32(mediaType, MF_MT_MPEG2_LEVEL, 0);
return S_OK;
}
HRESULT
WMFReader::ConfigureAudioDecoder()
{
NS_ASSERTION(mSourceReader, "Must have a SourceReader before configuring decoders!");
if (!mSourceReader ||
!SourceReaderHasStream(mSourceReader, MF_SOURCE_READER_FIRST_AUDIO_STREAM)) {
// No stream, no error.
return S_OK;
}
const GUID* codecs;
uint32_t numCodecs = 0;
GetSupportedAudioCodecs(&codecs, &numCodecs);
HRESULT hr = ConfigureSourceReaderStream(mSourceReader,
MF_SOURCE_READER_FIRST_AUDIO_STREAM,
MFAudioFormat_Float,
codecs,
numCodecs);
if (FAILED(hr)) {
NS_WARNING("Failed to configure WMF Audio decoder for PCM output");
return hr;
}
RefPtr<IMFMediaType> mediaType;
hr = mSourceReader->GetCurrentMediaType(MF_SOURCE_READER_FIRST_AUDIO_STREAM,
byRef(mediaType));
if (FAILED(hr)) {
NS_WARNING("Failed to get configured audio media type");
return hr;
}
mAudioRate = MFGetAttributeUINT32(mediaType, MF_MT_AUDIO_SAMPLES_PER_SECOND, 0);
mAudioChannels = MFGetAttributeUINT32(mediaType, MF_MT_AUDIO_NUM_CHANNELS, 0);
mAudioBytesPerSample = MFGetAttributeUINT32(mediaType, MF_MT_AUDIO_BITS_PER_SAMPLE, 16) / 8;
mInfo.mAudio.mChannels = mAudioChannels;
mInfo.mAudio.mRate = mAudioRate;
mHasAudio = true;
DECODER_LOG("Successfully configured audio stream. rate=%u channels=%u bitsPerSample=%u",
mAudioRate, mAudioChannels, mAudioBytesPerSample);
return S_OK;
}
audio_reader::audio_reader(std::wstring& source)
{
{
IMFByteStreamPtr stream;
CHK(MFCreateFile(MF_FILE_ACCESSMODE::MF_ACCESSMODE_READ, MF_FILE_OPENMODE::MF_OPENMODE_FAIL_IF_NOT_EXIST, MF_FILE_FLAGS::MF_FILEFLAGS_NONE, source.c_str(), &stream));
IMFAttributesPtr attr;
CHK(MFCreateAttributes(&attr, 10));
CHK(attr->SetUINT32(MF_READWRITE_ENABLE_HARDWARE_TRANSFORMS, true));
IMFSourceReaderPtr reader;
CHK(MFCreateSourceReaderFromByteStream(stream.Get(), attr.Get(), &reader));
// CHK(MFCreateSourceReaderFromURL(source.c_str(),attr.Get(), &reader));
CHK(reader.As(&reader_));
QWORD length;
CHK(stream->GetLength(&length));
fileSize_ = length;
}
//CHK(reader_->GetServiceForStream(0, MF_WRAPPED_OBJECT, __uuidof(IMFByteStream), &stream));
CHK(reader_->GetNativeMediaType(0, 0, &native_media_type_));
CHK(MFCreateMediaType(¤t_media_type_));
CHK(current_media_type_->SetGUID(MF_MT_MAJOR_TYPE, MFMediaType_Audio));
CHK(current_media_type_->SetGUID(MF_MT_SUBTYPE, MFAudioFormat_PCM));
CHK(current_media_type_->SetUINT32(MF_MT_AUDIO_BITS_PER_SAMPLE,
MFGetAttributeUINT32(native_media_type_.Get(), MF_MT_AUDIO_BITS_PER_SAMPLE, bits_per_sample)
)
);
CHK(current_media_type_->SetUINT32(MF_MT_AUDIO_SAMPLES_PER_SECOND,
MFGetAttributeUINT32(native_media_type_.Get(), MF_MT_AUDIO_SAMPLES_PER_SECOND, samples_per_second)
));
CHK(current_media_type_->SetUINT32(MF_MT_AUDIO_NUM_CHANNELS,
MFGetAttributeUINT32(native_media_type_.Get(), MF_MT_AUDIO_NUM_CHANNELS, channel_count)
));
//DWORD blockAlign;
//CHK(native_media_type_->GetUINT32(MF_MT_AUDIO_BLOCK_ALIGNMENT, &blockAlign));
//CHK(current_media_type_->SetUINT32(MF_MT_AUDIO_BLOCK_ALIGNMENT,blockAlign ));
CHK(reader_->SetCurrentMediaType(0, nullptr, current_media_type_.Get()));
CHK(reader_->GetCurrentMediaType(0, current_media_type_.ReleaseAndGetAddressOf()));
UINT32 blockAlign;
CHK(current_media_type_->GetUINT32(MF_MT_AUDIO_BLOCK_ALIGNMENT, &blockAlign));
DOUT(boost::wformat(L"Block Align: %10d %10x") % blockAlign % blockAlign);
}
// Gets the sub-region of the video frame that should be displayed.
// See: http://msdn.microsoft.com/en-us/library/windows/desktop/bb530115(v=vs.85).aspx
HRESULT
GetPictureRegion(IMFMediaType* aMediaType, nsIntRect& aOutPictureRegion)
{
// Determine if "pan and scan" is enabled for this media. If it is, we
// only display a region of the video frame, not the entire frame.
BOOL panScan = MFGetAttributeUINT32(aMediaType, MF_MT_PAN_SCAN_ENABLED, FALSE);
// If pan and scan mode is enabled. Try to get the display region.
HRESULT hr = E_FAIL;
MFVideoArea videoArea;
memset(&videoArea, 0, sizeof(MFVideoArea));
if (panScan) {
hr = aMediaType->GetBlob(MF_MT_PAN_SCAN_APERTURE,
(UINT8*)&videoArea,
sizeof(MFVideoArea),
nullptr);
}
// If we're not in pan-and-scan mode, or the pan-and-scan region is not set,
// check for a minimimum display aperture.
if (!panScan || hr == MF_E_ATTRIBUTENOTFOUND) {
hr = aMediaType->GetBlob(MF_MT_MINIMUM_DISPLAY_APERTURE,
(UINT8*)&videoArea,
sizeof(MFVideoArea),
nullptr);
}
if (hr == MF_E_ATTRIBUTENOTFOUND) {
// Minimum display aperture is not set, for "backward compatibility with
// some components", check for a geometric aperture.
hr = aMediaType->GetBlob(MF_MT_GEOMETRIC_APERTURE,
(UINT8*)&videoArea,
sizeof(MFVideoArea),
nullptr);
}
if (SUCCEEDED(hr)) {
// The media specified a picture region, return it.
aOutPictureRegion = nsIntRect(MFOffsetToInt32(videoArea.OffsetX),
MFOffsetToInt32(videoArea.OffsetY),
videoArea.Area.cx,
videoArea.Area.cy);
return S_OK;
}
// No picture region defined, fall back to using the entire video area.
UINT32 width = 0, height = 0;
hr = MFGetAttributeSize(aMediaType, MF_MT_FRAME_SIZE, &width, &height);
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
aOutPictureRegion = nsIntRect(0, 0, width, height);
return S_OK;
}
HRESULT CASFManager::SendKeyFrameToDecoder(
IMFSample* pSample,
const MFTIME& hnsSeekTime,
BOOL bReverse,
BOOL* fDecodedKeyFrame,
SAMPLE_INFO* pSampleInfo,
void (*FuncPtrToDisplaySampleInfo)(SAMPLE_INFO*))
{
if (!pSample)
{
return E_INVALIDARG;
}
HRESULT hr = S_OK;
MFTIME hnsCurrentSampleTime =0;
BOOL fShouldDecode = FALSE;
UINT32 fIsKeyFrame = 0;
IMFSample* pKeyFrameSample = NULL;
// Get the time stamp on the sample
CHECK_HR (hr = pSample->GetSampleTime (&hnsCurrentSampleTime));
if ((UINT64)hnsCurrentSampleTime > m_fileinfo->cbPreroll)
{
hnsCurrentSampleTime -= m_fileinfo->cbPreroll;
}
// Check if the key-frame attribute is set on the sample
fIsKeyFrame = MFGetAttributeUINT32(pSample, MFSampleExtension_CleanPoint, FALSE);
if (!fIsKeyFrame)
{
return hr;
}
// Should we decode this sample?
if (bReverse)
{
// Reverse playback:
// Is the sample *prior* to the seek time, and a key frame?
fShouldDecode = (hnsCurrentSampleTime <= hnsSeekTime) ;
}
else
{
// Forward playback:
// Is the sample *after* the seek time, and a key frame?
fShouldDecode = (hnsCurrentSampleTime >= hnsSeekTime);
}
if (fShouldDecode)
{
// We found the key frame closest to the seek time.
// Start the decoder if not already started.
if ( m_pDecoder->GetDecoderStatus() != STREAMING)
{
CHECK_HR (hr = m_pDecoder->StartDecoding());
}
// Set the discontinity attribute.
CHECK_HR (hr = pSample->SetUINT32(MFSampleExtension_Discontinuity, TRUE));
//Send the sample to the decoder.
CHECK_HR (hr = m_pDecoder->ProcessVideo(pSample));
*fDecodedKeyFrame = TRUE;
//Get sample information
(void)GetSampleInfo(pSample, pSampleInfo);
pSampleInfo->fSeekedKeyFrame = *fDecodedKeyFrame;
//Send it to callback to display
FuncPtrToDisplaySampleInfo(pSampleInfo);
CHECK_HR (hr = m_pDecoder->StopDecoding());
}
done:
return hr;
}
HRESULT DrawDevice::SetVideoType(IMFMediaType *pType)
{
HRESULT hr = S_OK;
GUID subtype = { 0 };
MFRatio PAR = { 0 };
// Find the video subtype.
hr = pType->GetGUID(MF_MT_SUBTYPE, &subtype);
if (FAILED(hr)) { goto done; }
// Choose a conversion function.
// (This also validates the format type.)
hr = SetConversionFunction(subtype);
if (FAILED(hr)) { goto done; }
//
// Get some video attributes.
//
// Get the frame size.
hr = MFGetAttributeSize(pType, MF_MT_FRAME_SIZE, &m_width, &m_height);
if (FAILED(hr)) { goto done; }
// Get the interlace mode. Default: assume progressive.
m_interlace = (MFVideoInterlaceMode)MFGetAttributeUINT32(
pType,
MF_MT_INTERLACE_MODE,
MFVideoInterlace_Progressive
);
// Get the image stride.
hr = GetDefaultStride(pType, &m_lDefaultStride);
if (FAILED(hr)) { goto done; }
// Get the pixel aspect ratio. Default: Assume square pixels (1:1)
hr = MFGetAttributeRatio(
pType,
MF_MT_PIXEL_ASPECT_RATIO,
(UINT32*)&PAR.Numerator,
(UINT32*)&PAR.Denominator
);
if (SUCCEEDED(hr))
{
m_PixelAR = PAR;
}
else
{
m_PixelAR.Numerator = m_PixelAR.Denominator = 1;
}
m_format = (D3DFORMAT)subtype.Data1;
// Create Direct3D swap chains.
hr = CreateSwapChains();
if (FAILED(hr)) { goto done; }
// Update the destination rectangle for the correct
// aspect ratio.
UpdateDestinationRect();
if (m_pBuf) delete [] m_pBuf;
m_pBuf = new BYTE[m_height * m_width * 3];
done:
if (FAILED(hr))
{
m_format = D3DFMT_UNKNOWN;
m_convertFn = NULL;
}
return hr;
}
STDMETHODIMP CDecWMV9MFT::ProcessOutput()
{
HRESULT hr = S_OK;
DWORD dwStatus = 0;
MFT_OUTPUT_STREAM_INFO outputInfo = {0};
m_pMFT->GetOutputStreamInfo(0, &outputInfo);
IMFMediaBuffer *pMFBuffer = nullptr;
ASSERT(!(outputInfo.dwFlags & MFT_OUTPUT_STREAM_PROVIDES_SAMPLES));
MFT_OUTPUT_DATA_BUFFER OutputBuffer = {0};
if (!(outputInfo.dwFlags & MFT_OUTPUT_STREAM_PROVIDES_SAMPLES)) {
pMFBuffer = GetBuffer(outputInfo.cbSize);
if (!pMFBuffer) { DbgLog((LOG_TRACE, 10, L"Unable to allocate media buffere")); return E_FAIL; }
IMFSample *pSampleOut = nullptr;
hr = MF.CreateSample(&pSampleOut);
if (FAILED(hr)) { DbgLog((LOG_TRACE, 10, L"Unable to allocate MF sample, hr: 0x%x", hr)); ReleaseBuffer(pMFBuffer); return E_FAIL; }
pSampleOut->AddBuffer(pMFBuffer);
OutputBuffer.pSample = pSampleOut;
}
hr = m_pMFT->ProcessOutput(0, 1, &OutputBuffer, &dwStatus);
// We don't process events, just release them
SafeRelease(&OutputBuffer.pEvents);
// handle stream format changes
if (hr == MF_E_TRANSFORM_STREAM_CHANGE || OutputBuffer.dwStatus == MFT_OUTPUT_DATA_BUFFER_FORMAT_CHANGE ) {
SafeRelease(&OutputBuffer.pSample);
ReleaseBuffer(pMFBuffer);
hr = SelectOutputType();
if (FAILED(hr)) {
DbgLog((LOG_TRACE, 10, L"-> Failed to handle stream change, hr: %x", hr));
return E_FAIL;
}
// try again with the new type, it should work now!
return ProcessOutput();
}
// the MFT generated no output, discard the sample and return
if (hr == MF_E_TRANSFORM_NEED_MORE_INPUT || OutputBuffer.dwStatus == MFT_OUTPUT_DATA_BUFFER_NO_SAMPLE) {
SafeRelease(&OutputBuffer.pSample);
ReleaseBuffer(pMFBuffer);
return S_FALSE;
}
// unknown error condition
if (FAILED(hr)) {
DbgLog((LOG_TRACE, 10, L"-> ProcessOutput failed with hr: %x", hr));
SafeRelease(&OutputBuffer.pSample);
ReleaseBuffer(pMFBuffer);
return E_FAIL;
}
LAVFrame *pFrame = nullptr;
AllocateFrame(&pFrame);
IMFMediaType *pMTOut = nullptr;
m_pMFT->GetOutputCurrentType(0, &pMTOut);
MFGetAttributeSize(pMTOut, MF_MT_FRAME_SIZE, (UINT32 *)&pFrame->width, (UINT32 *)&pFrame->height);
pFrame->format = m_OutPixFmt;
AVRational pixel_aspect_ratio = {1, 1};
MFGetAttributeRatio(pMTOut, MF_MT_PIXEL_ASPECT_RATIO, (UINT32*)&pixel_aspect_ratio.num, (UINT32*)&pixel_aspect_ratio.den);
AVRational display_aspect_ratio = {0, 0};
av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den, (int64_t)pixel_aspect_ratio.num * pFrame->width, (int64_t)pixel_aspect_ratio.den * pFrame->height, INT_MAX);
pFrame->aspect_ratio = display_aspect_ratio;
pFrame->interlaced = MFGetAttributeUINT32(OutputBuffer.pSample, MFSampleExtension_Interlaced, FALSE);
pFrame->repeat = MFGetAttributeUINT32(OutputBuffer.pSample, MFSampleExtension_RepeatFirstField, FALSE);
LAVDeintFieldOrder fo = m_pSettings->GetDeintFieldOrder();
pFrame->tff = (fo == DeintFieldOrder_Auto) ? !MFGetAttributeUINT32(OutputBuffer.pSample, MFSampleExtension_BottomFieldFirst, FALSE) : (fo == DeintFieldOrder_TopFieldFirst);
if (pFrame->interlaced && !m_bInterlaced)
m_bInterlaced = TRUE;
pFrame->interlaced = (pFrame->interlaced || (m_bInterlaced && m_pSettings->GetDeinterlacingMode() == DeintMode_Aggressive) || m_pSettings->GetDeinterlacingMode() == DeintMode_Force) && !(m_pSettings->GetDeinterlacingMode() == DeintMode_Disable);
pFrame->ext_format.VideoPrimaries = MFGetAttributeUINT32(pMTOut, MF_MT_VIDEO_PRIMARIES, MFVideoPrimaries_Unknown);
pFrame->ext_format.VideoTransferFunction = MFGetAttributeUINT32(pMTOut, MF_MT_TRANSFER_FUNCTION, MFVideoTransFunc_Unknown);
pFrame->ext_format.VideoTransferMatrix = MFGetAttributeUINT32(pMTOut, MF_MT_YUV_MATRIX, MFVideoTransferMatrix_Unknown);
pFrame->ext_format.VideoChromaSubsampling = MFGetAttributeUINT32(pMTOut, MF_MT_VIDEO_CHROMA_SITING, MFVideoChromaSubsampling_Unknown);
pFrame->ext_format.NominalRange = MFGetAttributeUINT32(pMTOut, MF_MT_VIDEO_NOMINAL_RANGE, MFNominalRange_Unknown);
// HACK: don't flag range=limited if its the only value set, since its also the implied default, this helps to avoid a reconnect
// The MFT always sets this value, even if the bitstream says nothing about it, causing a reconnect on every vc1/wmv3 file
if (pFrame->ext_format.value == 0x2000)
pFrame->ext_format.value = 0;
// Timestamps
if (m_bManualReorder) {
if (!m_timestampQueue.empty()) {
pFrame->rtStart = m_timestampQueue.front();
m_timestampQueue.pop();
LONGLONG llDuration = 0;
hr = OutputBuffer.pSample->GetSampleDuration(&llDuration);
if (SUCCEEDED(hr) && llDuration > 0) {
pFrame->rtStop = pFrame->rtStart + llDuration;
}
}
} else {
LONGLONG llTimestamp = 0;
hr = OutputBuffer.pSample->GetSampleTime(&llTimestamp);
if (SUCCEEDED(hr)) {
pFrame->rtStart = llTimestamp;
LONGLONG llDuration = 0;
hr = OutputBuffer.pSample->GetSampleDuration(&llDuration);
if (SUCCEEDED(hr) && llDuration > 0) {
pFrame->rtStop = pFrame->rtStart + llDuration;
}
}
}
SafeRelease(&pMTOut);
// Lock memory in the buffer
BYTE *pBuffer = nullptr;
pMFBuffer->Lock(&pBuffer, NULL, NULL);
// Check alignment
// If not properly aligned, we need to make the data aligned.
int alignment = (m_OutPixFmt == LAVPixFmt_NV12) ? 16 : 32;
if ((pFrame->width % alignment) != 0) {
hr = AllocLAVFrameBuffers(pFrame);
if (FAILED(hr)) {
pMFBuffer->Unlock();
ReleaseBuffer(pMFBuffer);
SafeRelease(&OutputBuffer.pSample);
return hr;
}
size_t ySize = pFrame->width * pFrame->height;
memcpy_plane(pFrame->data[0], pBuffer, pFrame->width, pFrame->stride[0], pFrame->height);
if (m_OutPixFmt == LAVPixFmt_NV12) {
memcpy_plane(pFrame->data[1], pBuffer + ySize, pFrame->width, pFrame->stride[1], pFrame->height / 2);
} else if (m_OutPixFmt == LAVPixFmt_YUV420) {
size_t uvSize = ySize / 4;
memcpy_plane(pFrame->data[2], pBuffer + ySize, pFrame->width / 2, pFrame->stride[2], pFrame->height / 2);
memcpy_plane(pFrame->data[1], pBuffer + ySize + uvSize, pFrame->width / 2, pFrame->stride[1], pFrame->height / 2);
}
pMFBuffer->Unlock();
ReleaseBuffer(pMFBuffer);
} else {
if (m_OutPixFmt == LAVPixFmt_NV12) {
pFrame->data[0] = pBuffer;
pFrame->data[1] = pBuffer + pFrame->width * pFrame->height;
pFrame->stride[0] = pFrame->stride[1] = pFrame->width;
} else if (m_OutPixFmt == LAVPixFmt_YUV420) {
pFrame->data[0] = pBuffer;
pFrame->data[2] = pBuffer + pFrame->width * pFrame->height;
pFrame->data[1] = pFrame->data[2] + (pFrame->width / 2) * (pFrame->height / 2);
pFrame->stride[0] = pFrame->width;
pFrame->stride[1] = pFrame->stride[2] = pFrame->width / 2;
}
pFrame->data[3] = (BYTE *)pMFBuffer;
pFrame->destruct = wmv9_buffer_destruct;
pFrame->priv_data = this;
}
pFrame->flags |= LAV_FRAME_FLAG_BUFFER_MODIFY;
Deliver(pFrame);
SafeRelease(&OutputBuffer.pSample);
if (OutputBuffer.dwStatus == MFT_OUTPUT_DATA_BUFFER_INCOMPLETE)
return ProcessOutput();
return hr;
}
STDMETHODIMP CDecWMV9MFT::InitDecoder(AVCodecID codec, const CMediaType *pmt)
{
HRESULT hr = S_OK;
DbgLog((LOG_TRACE, 10, L"CDecWMV9MFT::InitDecoder(): Initializing WMV9 MFT decoder"));
DestroyDecoder(false);
BITMAPINFOHEADER *pBMI = nullptr;
REFERENCE_TIME rtAvg = 0;
DWORD dwARX = 0, dwARY = 0;
videoFormatTypeHandler(*pmt, &pBMI, &rtAvg, &dwARX, &dwARY);
size_t extralen = 0;
BYTE *extra = nullptr;
getExtraData(*pmt, nullptr, &extralen);
if (extralen > 0) {
extra = (BYTE *)av_mallocz(extralen + FF_INPUT_BUFFER_PADDING_SIZE);
getExtraData(*pmt, extra, &extralen);
}
if (codec == AV_CODEC_ID_VC1 && extralen) {
size_t i = 0;
for (i = 0; i < (extralen - 4); i++) {
uint32_t code = AV_RB32(extra + i);
if ((code & ~0xFF) == 0x00000100)
break;
}
if (i == 0) {
memmove(extra + 1, extra, extralen);
*extra = 0;
extralen++;
} else if (i > 1) {
DbgLog((LOG_TRACE, 10, L"-> VC-1 Header at position %u (should be 0 or 1)", i));
}
}
if (extralen > 0) {
m_vc1Header = new CVC1HeaderParser(extra, extralen, codec);
}
/* Create input type */
m_nCodecId = codec;
IMFMediaType *pMTIn = nullptr;
MF.CreateMediaType(&pMTIn);
pMTIn->SetUINT32(MF_MT_COMPRESSED, TRUE);
pMTIn->SetUINT32(MF_MT_ALL_SAMPLES_INDEPENDENT, FALSE);
pMTIn->SetUINT32(MF_MT_FIXED_SIZE_SAMPLES, FALSE);
pMTIn->SetGUID(MF_MT_MAJOR_TYPE, MFMediaType_Video);
pMTIn->SetGUID(MF_MT_SUBTYPE, VerifySubtype(codec, pmt->subtype));
MFSetAttributeSize(pMTIn, MF_MT_FRAME_SIZE, pBMI->biWidth, pBMI->biHeight);
UINT32 rateNum = 0, rateDen = 0;
MF.AverageTimePerFrameToFrameRate(rtAvg, &rateNum, &rateDen);
MFSetAttributeRatio(pMTIn, MF_MT_FRAME_RATE, rateNum, rateDen);
pMTIn->SetBlob(MF_MT_USER_DATA, extra, (UINT32)extralen);
av_freep(&extra);
hr = m_pMFT->SetInputType(0, pMTIn, 0);
if (FAILED(hr)) {
DbgLog((LOG_TRACE, 10, L"-> Failed to set input type on MFT"));
return hr;
}
/* Create output type */
hr = SelectOutputType();
SafeRelease(&pMTIn);
if (FAILED(hr)) {
DbgLog((LOG_TRACE, 10, L"-> Failed to set output type on MFT"));
return hr;
}
IMFMediaType *pMTOut = nullptr;
m_pMFT->GetOutputCurrentType(0, &pMTOut);
m_bInterlaced = MFGetAttributeUINT32(pMTOut, MF_MT_INTERLACE_MODE, MFVideoInterlace_Unknown) > MFVideoInterlace_Progressive;
SafeRelease(&pMTOut);
m_bManualReorder = (codec == AV_CODEC_ID_VC1) && !(m_pCallback->GetDecodeFlags() & LAV_VIDEO_DEC_FLAG_ONLY_DTS);
return S_OK;
}
/*
Description:
This is used whenever there is a media type change on an output pin and the
Output queue is being reconfigured.
The possible return values for the function are as follows
DeviceMftTransformXVPIllegal -> If either of the mediatypes or both are NULL
DeviceMftTransformXVPDisruptiveIn -> If the mediatype at the output pin is greater than the input pin. This will result in change of the media type on the input
DeviceMftTransformXVPDisruptiveOut -> This is a reconfiguration or addition of the XVP in the Output pin queue
DeviceMftTransformXVPCurrent -> No XVP needed at all
Note: This iteration doesn't support decoder. The next one will and this function will accordingly change
*/
STDMETHODIMP CompareMediaTypesForXVP(
_In_opt_ IMFMediaType *inMediaType,
_In_ IMFMediaType *newMediaType,
_Inout_ MF_TRANSFORM_XVP_OPERATION *operation
)
{
UINT32 unWidthin, unHeightin, unWidthNew, unHeightNew = 0;
HRESULT hr = S_OK;
GUID guidTypeA = GUID_NULL;
GUID guidTypeB = GUID_NULL;
*operation = DeviceMftTransformXVPIllegal;
if ((!inMediaType) || (!newMediaType))
{
goto done;
}
DMFTCHECKHR_GOTO( MFGetAttributeSize( inMediaType, MF_MT_FRAME_SIZE, &unWidthin, &unHeightin ), done );
DMFTCHECKHR_GOTO( MFGetAttributeSize( newMediaType, MF_MT_FRAME_SIZE, &unWidthNew, &unHeightNew ), done );
if ( SUCCEEDED( inMediaType->GetGUID( MF_MT_MAJOR_TYPE, &guidTypeA ) ) &&
SUCCEEDED( newMediaType->GetGUID( MF_MT_MAJOR_TYPE, &guidTypeB ) ) &&
IsEqualGUID( guidTypeA, guidTypeB ) )
{
if ( SUCCEEDED( inMediaType->GetGUID ( MF_MT_SUBTYPE, &guidTypeA ) ) &&
SUCCEEDED( newMediaType->GetGUID( MF_MT_SUBTYPE, &guidTypeB ) ) &&
IsEqualGUID( guidTypeA, guidTypeB ) )
{
//Comparing the MF_MT_AM_FORMAT_TYPE for the directshow format guid
#if 0
if (SUCCEEDED(inMediaType->GetGUID(MF_MT_AM_FORMAT_TYPE, &guidTypeA)) &&
SUCCEEDED(newMediaType->GetGUID(MF_MT_AM_FORMAT_TYPE, &guidTypeB)) &&
IsEqualGUID(guidTypeA, guidTypeB))
#endif
{
if (!(( unWidthin == unWidthNew ) &&
( unHeightin == unHeightNew ) ) )
{
if ( ( unWidthNew > unWidthin ) || ( unHeightNew > unHeightin ) )
{
*operation = DeviceMftTransformXVPDisruptiveIn; //Media type needs to change at input
}
else
{
*operation = DeviceMftTransformXVPDisruptiveOut; //Media type needs to change at output
}
goto done;
}
if ( MFGetAttributeUINT32( inMediaType, MF_MT_SAMPLE_SIZE, 0 ) !=
MFGetAttributeUINT32( newMediaType, MF_MT_SAMPLE_SIZE, 0 ) )
{
hr = S_FALSE; //Sample sizes differ.
goto done;
}
else
{
//Same media type.. No XVP needed or the current XVP is fine!
*operation = DeviceMftTransformXVPCurrent;
}
}
}
else
{
//This is a disruptive operation. Actually a decoder operation!
*operation = DeviceMftTransformXVPDisruptiveIn;
}
}
done:
return hr;
}
HRESULT MediaInfo::InternalInitAudio(IMFMediaType* mediaType, StreamInfo& info)
{
info.audio.channels = MFGetAttributeUINT32(mediaType, MF_MT_AUDIO_NUM_CHANNELS, 0);
info.audio.sampleRate = MFGetAttributeUINT32(mediaType, MF_MT_AUDIO_SAMPLES_PER_SECOND, 0);
return S_OK;
}
bool WinCaptureDevice::InitializeFirst(std::string& error)
{
HRESULT hr = CoInitializeEx(NULL, COINIT_APARTMENTTHREADED | COINIT_DISABLE_OLE1DDE);
if (!SUCCEEDED(hr))
{
return false;
error = "CoInitializeEx failed";
}
hr = MFStartup(MF_VERSION, MFSTARTUP_FULL);
if (!SUCCEEDED(hr))
{
error = "MFStartup failed";
return false;
}
Close();
memset(&InputType, 0, sizeof(InputType));
IMFActivate* activate = WinCaptureDevice::ChooseFirst(error);
if (!activate)
return false;
IMFMediaSource *pSource = NULL;
IMFAttributes *pAttributes = NULL;
IMFMediaType *pType = NULL;
UINT32 m_cchSymbolicLink = 0;
// Create the media source for the device.
if (SUCCEEDED(hr))
hr = activate->ActivateObject(__uuidof(IMFMediaSource), (void**) &pSource);
// Get the symbolic link.
if (SUCCEEDED(hr))
hr = activate->GetAllocatedString(MF_DEVSOURCE_ATTRIBUTE_SOURCE_TYPE_VIDCAP_SYMBOLIC_LINK, &SymbolicLink, &m_cchSymbolicLink);
//
// Create the source reader.
//
// Create an attribute store to hold initialization settings.
if (SUCCEEDED(hr))
hr = MFCreateAttributes(&pAttributes, 2);
if (SUCCEEDED(hr))
hr = pAttributes->SetUINT32(MF_READWRITE_DISABLE_CONVERTERS, TRUE);
// Set the callback pointer.
if (SUCCEEDED(hr))
hr = pAttributes->SetUnknown(MF_SOURCE_READER_ASYNC_CALLBACK, this);
if (SUCCEEDED(hr))
hr = MFCreateSourceReaderFromMediaSource(pSource, pAttributes, &Reader);
// Try to find a suitable input type.
if (SUCCEEDED(hr))
{
for (uint i = 0; ; i++)
{
hr = Reader->GetNativeMediaType((DWORD) MF_SOURCE_READER_FIRST_VIDEO_STREAM, i, &pType);
if (FAILED(hr))
{
error = "Failed to find a supported output format (ie RGB24)";
break;
}
memset(&InputType, 0, sizeof(InputType));
bool isTypeOK = IsMediaTypeSupported(pType, InputType);
if (isTypeOK)
{
// Get the frame size.
hr = MFGetAttributeSize(pType, MF_MT_FRAME_SIZE, &InputWidth, &InputHeight);
// Get the image stride.
hr = GetDefaultStride(pType, &InputDefaultStride);
// Get the interlace mode. Default: assume progressive.
InputInterlaceMode = (MFVideoInterlaceMode) MFGetAttributeUINT32(pType, MF_MT_INTERLACE_MODE, MFVideoInterlace_Progressive);
}
SafeRelease(&pType);
if (isTypeOK)
break;
}
}
if (SUCCEEDED(hr))
{
// Ask for the first sample.
EnableCapture = 1;
hr = Reader->ReadSample((DWORD) MF_SOURCE_READER_FIRST_VIDEO_STREAM, 0, NULL, NULL, NULL, NULL);
}
if (FAILED(hr))
{
if (pSource)
{
pSource->Shutdown();
// NOTE: The source reader shuts down the media source by default, but we might not have gotten that far.
}
Close();
}
SafeRelease(&pSource);
SafeRelease(&pAttributes);
SafeRelease(&pType);
SafeRelease(&activate);
if (FAILED(hr) && error.length() == 0)
error = ErrorMessage(L"Failed to initialize video capture device", hr);
return SUCCEEDED(hr);
}
