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gecko/dom/media/wmf/WMFReader.cpp

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "WMFReader.h"
#include "WMFDecoder.h"
#include "WMFUtils.h"
#include "WMFByteStream.h"
#include "WMFSourceReaderCallback.h"
#include "mozilla/ArrayUtils.h"
#include "mozilla/dom/TimeRanges.h"
#include "mozilla/dom/HTMLMediaElement.h"
#include "mozilla/Preferences.h"
#include "DXVA2Manager.h"
#include "ImageContainer.h"
#include "Layers.h"
#include "mozilla/layers/LayersTypes.h"
#ifndef MOZ_SAMPLE_TYPE_FLOAT32
#error We expect 32bit float audio samples on desktop for the Windows Media Foundation media backend.
#endif
#include "MediaDecoder.h"
#include "VideoUtils.h"
#include "gfx2DGlue.h"
using namespace mozilla::gfx;
using mozilla::layers::Image;
using mozilla::layers::LayerManager;
using mozilla::layers::LayersBackend;
namespace mozilla {
#ifdef PR_LOGGING
extern PRLogModuleInfo* gMediaDecoderLog;
#define DECODER_LOG(...) PR_LOG(gMediaDecoderLog, PR_LOG_DEBUG, (__VA_ARGS__))
#else
#define DECODER_LOG(...)
#endif
// Uncomment to enable verbose per-sample logging.
//#define LOG_SAMPLE_DECODE 1
WMFReader::WMFReader(AbstractMediaDecoder* aDecoder)
: MediaDecoderReader(aDecoder),
mSourceReader(nullptr),
mAudioChannels(0),
mAudioBytesPerSample(0),
mAudioRate(0),
mVideoWidth(0),
mVideoHeight(0),
mVideoStride(0),
mAudioFrameSum(0),
mAudioFrameOffset(0),
mHasAudio(false),
mHasVideo(false),
mUseHwAccel(false),
mMustRecaptureAudioPosition(true),
mIsMP3Enabled(WMFDecoder::IsMP3Supported()),
mCOMInitialized(false)
{
NS_ASSERTION(NS_IsMainThread(), "Must be on main thread.");
MOZ_COUNT_CTOR(WMFReader);
}
WMFReader::~WMFReader()
{
NS_ASSERTION(NS_IsMainThread(), "Must be on main thread.");
// Note: We must shutdown the byte stream before calling MFShutdown, else we
// get assertion failures when unlocking the byte stream's work queue.
if (mByteStream) {
DebugOnly<nsresult> rv = mByteStream->Shutdown();
NS_ASSERTION(NS_SUCCEEDED(rv), "Failed to shutdown WMFByteStream");
}
DebugOnly<HRESULT> hr = wmf::MFShutdown();
NS_ASSERTION(SUCCEEDED(hr), "MFShutdown failed");
MOZ_COUNT_DTOR(WMFReader);
}
bool
WMFReader::InitializeDXVA()
{
if (!Preferences::GetBool("media.windows-media-foundation.use-dxva", false)) {
return false;
}
MOZ_ASSERT(mDecoder->GetImageContainer());
// Extract the layer manager backend type so that we can determine
// whether it's worthwhile using DXVA. If we're not running with a D3D
// layer manager then the readback of decoded video frames from GPU to
// CPU memory grinds painting to a halt, and makes playback performance
// *worse*.
MediaDecoderOwner* owner = mDecoder->GetOwner();
NS_ENSURE_TRUE(owner, false);
dom::HTMLMediaElement* element = owner->GetMediaElement();
NS_ENSURE_TRUE(element, false);
nsRefPtr<LayerManager> layerManager =
nsContentUtils::LayerManagerForDocument(element->OwnerDoc());
NS_ENSURE_TRUE(layerManager, false);
LayersBackend backend = layerManager->GetCompositorBackendType();
if (backend != LayersBackend::LAYERS_D3D9 &&
backend != LayersBackend::LAYERS_D3D10 &&
backend != LayersBackend::LAYERS_D3D11) {
return false;
}
mDXVA2Manager = DXVA2Manager::Create();
return mDXVA2Manager != nullptr;
}
nsresult
WMFReader::Init(MediaDecoderReader* aCloneDonor)
{
NS_ASSERTION(NS_IsMainThread(), "Must be on main thread.");
nsresult rv = WMFDecoder::LoadDLLs();
NS_ENSURE_SUCCESS(rv, rv);
if (FAILED(wmf::MFStartup())) {
NS_WARNING("Failed to initialize Windows Media Foundation");
return NS_ERROR_FAILURE;
}
mSourceReaderCallback = new WMFSourceReaderCallback();
// Must be created on main thread.
mByteStream = new WMFByteStream(mDecoder->GetResource(), mSourceReaderCallback);
rv = mByteStream->Init();
NS_ENSURE_SUCCESS(rv, rv);
if (mDecoder->GetImageContainer() != nullptr &&
IsVideoContentType(mDecoder->GetResource()->GetContentType())) {
mUseHwAccel = InitializeDXVA();
} else {
mUseHwAccel = false;
}
return NS_OK;
}
bool
WMFReader::HasAudio()
{
NS_ASSERTION(mDecoder->OnDecodeThread(), "Should be on decode thread.");
return mHasAudio;
}
bool
WMFReader::HasVideo()
{
NS_ASSERTION(mDecoder->OnDecodeThread(), "Should be on decode thread.");
return mHasVideo;
}
static HRESULT
ConfigureSourceReaderStream(IMFSourceReader *aReader,
const DWORD aStreamIndex,
const GUID& aOutputSubType,
const GUID* aAllowedInSubTypes,
const uint32_t aNumAllowedInSubTypes)
{
NS_ENSURE_TRUE(aReader, E_POINTER);
NS_ENSURE_TRUE(aAllowedInSubTypes, E_POINTER);
RefPtr<IMFMediaType> nativeType;
RefPtr<IMFMediaType> type;
HRESULT hr;
// Find the native format of the stream.
hr = aReader->GetNativeMediaType(aStreamIndex, 0, byRef(nativeType));
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
// Get the native output subtype of the stream. This denotes the uncompressed
// type.
GUID subType;
hr = nativeType->GetGUID(MF_MT_SUBTYPE, &subType);
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
// Ensure the input type of the media is in the allowed formats list.
bool isSubTypeAllowed = false;
for (uint32_t i = 0; i < aNumAllowedInSubTypes; i++) {
if (aAllowedInSubTypes[i] == subType) {
isSubTypeAllowed = true;
break;
}
}
if (!isSubTypeAllowed) {
nsCString name = GetGUIDName(subType);
DECODER_LOG("ConfigureSourceReaderStream subType=%s is not allowed to be decoded", name.get());
return E_FAIL;
}
// Find the major type.
GUID majorType;
hr = nativeType->GetGUID(MF_MT_MAJOR_TYPE, &majorType);
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
// Define the output type.
hr = wmf::MFCreateMediaType(byRef(type));
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
hr = type->SetGUID(MF_MT_MAJOR_TYPE, majorType);
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
hr = type->SetGUID(MF_MT_SUBTYPE, aOutputSubType);
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
// Set the uncompressed format. This can fail if the decoder can't produce
// that type.
return aReader->SetCurrentMediaType(aStreamIndex, nullptr, type);
}
// Returns the duration of the resource, in microseconds.
HRESULT
GetSourceReaderDuration(IMFSourceReader *aReader,
int64_t& aOutDuration)
{
AutoPropVar var;
HRESULT hr = aReader->GetPresentationAttribute(MF_SOURCE_READER_MEDIASOURCE,
MF_PD_DURATION,
&var);
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
// WMF stores duration in hundred nanosecond units.
int64_t duration_hns = 0;
hr = wmf::PropVariantToInt64(var, &duration_hns);
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
aOutDuration = HNsToUsecs(duration_hns);
return S_OK;
}
HRESULT
GetSourceReaderCanSeek(IMFSourceReader* aReader, bool& aOutCanSeek)
{
NS_ENSURE_TRUE(aReader, E_FAIL);
HRESULT hr;
AutoPropVar var;
hr = aReader->GetPresentationAttribute(MF_SOURCE_READER_MEDIASOURCE,
MF_SOURCE_READER_MEDIASOURCE_CHARACTERISTICS,
&var);
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
ULONG flags = 0;
hr = wmf::PropVariantToUInt32(var, &flags);
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
aOutCanSeek = ((flags & MFMEDIASOURCE_CAN_SEEK) == MFMEDIASOURCE_CAN_SEEK);
return S_OK;
}
HRESULT
WMFReader::ConfigureVideoFrameGeometry(IMFMediaType* aMediaType)
{
NS_ENSURE_TRUE(aMediaType != nullptr, E_POINTER);
HRESULT hr;
// Verify that the video subtype is what we expect it to be.
// When using hardware acceleration/DXVA2 the video format should
// be NV12, which is DXVA2's preferred format. For software decoding
// we use YV12, as that's easier for us to stick into our rendering
// pipeline than NV12. NV12 has interleaved UV samples, whereas YV12
// is a planar format.
GUID videoFormat;
hr = aMediaType->GetGUID(MF_MT_SUBTYPE, &videoFormat);
NS_ENSURE_TRUE(videoFormat == MFVideoFormat_NV12 || !mUseHwAccel, E_FAIL);
NS_ENSURE_TRUE(videoFormat == MFVideoFormat_YV12 || mUseHwAccel, E_FAIL);
nsIntRect pictureRegion;
hr = GetPictureRegion(aMediaType, pictureRegion);
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
UINT32 width = 0, height = 0;
hr = MFGetAttributeSize(aMediaType, MF_MT_FRAME_SIZE, &width, &height);
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
uint32_t aspectNum = 0, aspectDenom = 0;
hr = MFGetAttributeRatio(aMediaType,
MF_MT_PIXEL_ASPECT_RATIO,
&aspectNum,
&aspectDenom);
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
// Calculate and validate the picture region and frame dimensions after
// scaling by the pixel aspect ratio.
nsIntSize frameSize = nsIntSize(width, height);
nsIntSize displaySize = nsIntSize(pictureRegion.width, pictureRegion.height);
ScaleDisplayByAspectRatio(displaySize, float(aspectNum) / float(aspectDenom));
if (!IsValidVideoRegion(frameSize, pictureRegion, displaySize)) {
// Video track's frame sizes will overflow. Ignore the video track.
return E_FAIL;
}
// Success! Save state.
mInfo.mVideo.mDisplay = displaySize;
GetDefaultStride(aMediaType, &mVideoStride);
mVideoWidth = width;
mVideoHeight = height;
mPictureRegion = pictureRegion;
DECODER_LOG("WMFReader frame geometry frame=(%u,%u) stride=%u picture=(%d, %d, %d, %d) display=(%d,%d) PAR=%d:%d",
width, height,
mVideoStride,
mPictureRegion.x, mPictureRegion.y, mPictureRegion.width, mPictureRegion.height,
displaySize.width, displaySize.height,
aspectNum, aspectDenom);
return S_OK;
}
HRESULT
WMFReader::ConfigureVideoDecoder()
{
NS_ASSERTION(mSourceReader, "Must have a SourceReader before configuring decoders!");
// Determine if we have video.
if (!mSourceReader ||
!SourceReaderHasStream(mSourceReader, MF_SOURCE_READER_FIRST_VIDEO_STREAM)) {
// No stream, no error.
return S_OK;
}
if (!mDecoder->GetImageContainer()) {
// We can't display the video, so don't bother to decode; disable the stream.
return mSourceReader->SetStreamSelection(MF_SOURCE_READER_FIRST_VIDEO_STREAM, FALSE);
}
static const GUID MP4VideoTypes[] = {
MFVideoFormat_H264
};
HRESULT hr = ConfigureSourceReaderStream(mSourceReader,
MF_SOURCE_READER_FIRST_VIDEO_STREAM,
mUseHwAccel ? MFVideoFormat_NV12 : MFVideoFormat_YV12,
MP4VideoTypes,
ArrayLength(MP4VideoTypes));
if (FAILED(hr)) {
DECODER_LOG("Failed to configured video output");
return hr;
}
RefPtr<IMFMediaType> mediaType;
hr = mSourceReader->GetCurrentMediaType(MF_SOURCE_READER_FIRST_VIDEO_STREAM,
byRef(mediaType));
if (FAILED(hr)) {
NS_WARNING("Failed to get configured video media type");
return hr;
}
if (FAILED(ConfigureVideoFrameGeometry(mediaType))) {
NS_WARNING("Failed configured video frame dimensions");
return hr;
}
DECODER_LOG("Successfully configured video stream");
mHasVideo = mInfo.mVideo.mHasVideo = true;
return S_OK;
}
void
WMFReader::GetSupportedAudioCodecs(const GUID** aCodecs, uint32_t* aNumCodecs)
{
MOZ_ASSERT(aCodecs);
MOZ_ASSERT(aNumCodecs);
if (mIsMP3Enabled) {
GUID aacOrMp3 = MFMPEG4Format_Base;
aacOrMp3.Data1 = 0x6D703461;// FOURCC('m','p','4','a');
static const GUID codecs[] = {
MFAudioFormat_AAC,
MFAudioFormat_MP3,
aacOrMp3
};
*aCodecs = codecs;
*aNumCodecs = ArrayLength(codecs);
} else {
static const GUID codecs[] = {
MFAudioFormat_AAC
};
*aCodecs = codecs;
*aNumCodecs = ArrayLength(codecs);
}
}
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 = mInfo.mAudio.mHasAudio = true;
DECODER_LOG("Successfully configured audio stream. rate=%u channels=%u bitsPerSample=%u",
mAudioRate, mAudioChannels, mAudioBytesPerSample);
return S_OK;
}
HRESULT
WMFReader::CreateSourceReader()
{
HRESULT hr;
RefPtr<IMFAttributes> attr;
hr = wmf::MFCreateAttributes(byRef(attr), 1);
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
hr = attr->SetUnknown(MF_SOURCE_READER_ASYNC_CALLBACK, mSourceReaderCallback);
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
if (mUseHwAccel) {
hr = attr->SetUnknown(MF_SOURCE_READER_D3D_MANAGER,
mDXVA2Manager->GetDXVADeviceManager());
if (FAILED(hr)) {
DECODER_LOG("Failed to set DXVA2 D3D Device manager on source reader attributes");
mUseHwAccel = false;
}
}
hr = wmf::MFCreateSourceReaderFromByteStream(mByteStream, attr, byRef(mSourceReader));
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
hr = ConfigureVideoDecoder();
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
hr = ConfigureAudioDecoder();
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
if (mUseHwAccel && mInfo.mVideo.mHasVideo) {
RefPtr<IMFTransform> videoDecoder;
hr = mSourceReader->GetServiceForStream(MF_SOURCE_READER_FIRST_VIDEO_STREAM,
GUID_NULL,
IID_IMFTransform,
(void**)(IMFTransform**)(byRef(videoDecoder)));
if (SUCCEEDED(hr)) {
ULONG_PTR manager = ULONG_PTR(mDXVA2Manager->GetDXVADeviceManager());
hr = videoDecoder->ProcessMessage(MFT_MESSAGE_SET_D3D_MANAGER,
manager);
if (hr == MF_E_TRANSFORM_TYPE_NOT_SET) {
// Ignore MF_E_TRANSFORM_TYPE_NOT_SET. Vista returns this here
// on some, perhaps all, video cards. This may be because activating
// DXVA changes the available output types. It seems to be safe to
// ignore this error.
hr = S_OK;
}
}
if (FAILED(hr)) {
DECODER_LOG("Failed to set DXVA2 D3D Device manager on decoder hr=0x%x", hr);
mUseHwAccel = false;
}
}
return hr;
}
nsresult
WMFReader::ReadMetadata(MediaInfo* aInfo,
MetadataTags** aTags)
{
NS_ASSERTION(mDecoder->OnDecodeThread(), "Should be on decode thread.");
DECODER_LOG("WMFReader::ReadMetadata()");
HRESULT hr;
const bool triedToInitDXVA = mUseHwAccel;
if (FAILED(CreateSourceReader())) {
mSourceReader = nullptr;
if (triedToInitDXVA && !mUseHwAccel) {
// We tried to initialize DXVA and failed. Try again to create the
// IMFSourceReader but this time we won't use DXVA. Note that we
// must recreate the IMFSourceReader from scratch, as on some systems
// (AMD Radeon 3000) we cannot successfully reconfigure an existing
// reader to not use DXVA after we've failed to configure DXVA.
// See bug 987127.
if (FAILED(CreateSourceReader())) {
mSourceReader = nullptr;
}
}
}
if (!mSourceReader) {
NS_WARNING("Failed to create IMFSourceReader");
return NS_ERROR_FAILURE;
}
if (mInfo.HasVideo()) {
DECODER_LOG("Using DXVA: %s", (mUseHwAccel ? "Yes" : "No"));
}
// Abort if both video and audio failed to initialize.
NS_ENSURE_TRUE(mInfo.HasValidMedia(), NS_ERROR_FAILURE);
// Get the duration, and report it to the decoder if we have it.
int64_t duration = 0;
hr = GetSourceReaderDuration(mSourceReader, duration);
if (SUCCEEDED(hr)) {
ReentrantMonitorAutoEnter mon(mDecoder->GetReentrantMonitor());
mDecoder->SetMediaEndTime(duration);
}
*aInfo = mInfo;
*aTags = nullptr;
// aTags can be retrieved using techniques like used here:
// http://blogs.msdn.com/b/mf/archive/2010/01/12/mfmediapropdump.aspx
return NS_OK;
}
bool
WMFReader::IsMediaSeekable()
{
// Get the duration
int64_t duration = 0;
HRESULT hr = GetSourceReaderDuration(mSourceReader, duration);
// We can seek if we get a duration *and* the reader reports that it's
// seekable.
bool canSeek = false;
if (FAILED(hr) || FAILED(GetSourceReaderCanSeek(mSourceReader, canSeek)) ||
!canSeek) {
return false;
}
return true;
}
bool
WMFReader::DecodeAudioData()
{
NS_ASSERTION(mDecoder->OnDecodeThread(), "Should be on decode thread.");
HRESULT hr;
hr = mSourceReader->ReadSample(MF_SOURCE_READER_FIRST_AUDIO_STREAM,
0, // control flags
0, // read stream index
nullptr,
nullptr,
nullptr);
if (FAILED(hr)) {
DECODER_LOG("WMFReader::DecodeAudioData() ReadSample failed with hr=0x%x", hr);
// End the stream.
return false;
}
DWORD flags = 0;
LONGLONG timestampHns = 0;
RefPtr<IMFSample> sample;
hr = mSourceReaderCallback->Wait(&flags, &timestampHns, byRef(sample));
if (FAILED(hr) ||
(flags & MF_SOURCE_READERF_ERROR) ||
(flags & MF_SOURCE_READERF_ENDOFSTREAM) ||
(flags & MF_SOURCE_READERF_CURRENTMEDIATYPECHANGED)) {
DECODER_LOG("WMFReader::DecodeAudioData() ReadSample failed with hr=0x%x flags=0x%x",
hr, flags);
// End the stream.
return false;
}
if (!sample) {
// Not enough data? Try again...
return true;
}
RefPtr<IMFMediaBuffer> buffer;
hr = sample->ConvertToContiguousBuffer(byRef(buffer));
NS_ENSURE_TRUE(SUCCEEDED(hr), false);
BYTE* data = nullptr; // Note: *data will be owned by the IMFMediaBuffer, we don't need to free it.
DWORD maxLength = 0, currentLength = 0;
hr = buffer->Lock(&data, &maxLength, &currentLength);
NS_ENSURE_TRUE(SUCCEEDED(hr), false);
uint32_t numFrames = currentLength / mAudioBytesPerSample / mAudioChannels;
NS_ASSERTION(sizeof(AudioDataValue) == mAudioBytesPerSample, "Size calculation is wrong");
nsAutoArrayPtr<AudioDataValue> pcmSamples(new AudioDataValue[numFrames * mAudioChannels]);
memcpy(pcmSamples.get(), data, currentLength);
buffer->Unlock();
// We calculate the timestamp and the duration based on the number of audio
// frames we've already played. We don't trust the timestamp stored on the
// IMFSample, as sometimes it's wrong, possibly due to buggy encoders?
// If this sample block comes after a discontinuity (i.e. a gap or seek)
// reset the frame counters, and capture the timestamp. Future timestamps
// will be offset from this block's timestamp.
UINT32 discontinuity = false;
sample->GetUINT32(MFSampleExtension_Discontinuity, &discontinuity);
if (mMustRecaptureAudioPosition || discontinuity) {
mAudioFrameSum = 0;
hr = HNsToFrames(timestampHns, mAudioRate, &mAudioFrameOffset);
NS_ENSURE_TRUE(SUCCEEDED(hr), false);
mMustRecaptureAudioPosition = false;
}
int64_t timestamp;
hr = FramesToUsecs(mAudioFrameOffset + mAudioFrameSum, mAudioRate, &timestamp);
NS_ENSURE_TRUE(SUCCEEDED(hr), false);
mAudioFrameSum += numFrames;
int64_t duration;
hr = FramesToUsecs(numFrames, mAudioRate, &duration);
NS_ENSURE_TRUE(SUCCEEDED(hr), false);
mAudioQueue.Push(new AudioData(mDecoder->GetResource()->Tell(),
timestamp,
duration,
numFrames,
pcmSamples.forget(),
mAudioChannels,
mAudioRate));
#ifdef LOG_SAMPLE_DECODE
DECODER_LOG("Decoded audio sample! timestamp=%lld duration=%lld currentLength=%u",
timestamp, duration, currentLength);
#endif
return true;
}
HRESULT
WMFReader::CreateBasicVideoFrame(IMFSample* aSample,
int64_t aTimestampUsecs,
int64_t aDurationUsecs,
int64_t aOffsetBytes,
VideoData** aOutVideoData)
{
NS_ENSURE_TRUE(aSample, E_POINTER);
NS_ENSURE_TRUE(aOutVideoData, E_POINTER);
*aOutVideoData = nullptr;
HRESULT hr;
RefPtr<IMFMediaBuffer> buffer;
// Must convert to contiguous buffer to use IMD2DBuffer interface.
hr = aSample->ConvertToContiguousBuffer(byRef(buffer));
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
// Try and use the IMF2DBuffer interface if available, otherwise fallback
// to the IMFMediaBuffer interface. Apparently IMF2DBuffer is more efficient,
// but only some systems (Windows 8?) support it.
BYTE* data = nullptr;
LONG stride = 0;
RefPtr<IMF2DBuffer> twoDBuffer;
hr = buffer->QueryInterface(static_cast<IMF2DBuffer**>(byRef(twoDBuffer)));
if (SUCCEEDED(hr)) {
hr = twoDBuffer->Lock2D(&data, &stride);
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
} else {
hr = buffer->Lock(&data, nullptr, nullptr);
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
stride = mVideoStride;
}
// YV12, planar format: [YYYY....][VVVV....][UUUU....]
// i.e., Y, then V, then U.
VideoData::YCbCrBuffer b;
// Y (Y') plane
b.mPlanes[0].mData = data;
b.mPlanes[0].mStride = stride;
b.mPlanes[0].mHeight = mVideoHeight;
b.mPlanes[0].mWidth = mVideoWidth;
b.mPlanes[0].mOffset = 0;
b.mPlanes[0].mSkip = 0;
// The V and U planes are stored 16-row-aligned, so we need to add padding
// to the row heights to ensure the Y'CbCr planes are referenced properly.
uint32_t padding = 0;
if (mVideoHeight % 16 != 0) {
padding = 16 - (mVideoHeight % 16);
}
uint32_t y_size = stride * (mVideoHeight + padding);
uint32_t v_size = stride * (mVideoHeight + padding) / 4;
uint32_t halfStride = (stride + 1) / 2;
uint32_t halfHeight = (mVideoHeight + 1) / 2;
uint32_t halfWidth = (mVideoWidth + 1) / 2;
// U plane (Cb)
b.mPlanes[1].mData = data + y_size + v_size;
b.mPlanes[1].mStride = halfStride;
b.mPlanes[1].mHeight = halfHeight;
b.mPlanes[1].mWidth = halfWidth;
b.mPlanes[1].mOffset = 0;
b.mPlanes[1].mSkip = 0;
// V plane (Cr)
b.mPlanes[2].mData = data + y_size;
b.mPlanes[2].mStride = halfStride;
b.mPlanes[2].mHeight = halfHeight;
b.mPlanes[2].mWidth = halfWidth;
b.mPlanes[2].mOffset = 0;
b.mPlanes[2].mSkip = 0;
nsRefPtr<VideoData> v = VideoData::Create(mInfo.mVideo,
mDecoder->GetImageContainer(),
aOffsetBytes,
aTimestampUsecs,
aDurationUsecs,
b,
false,
-1,
ToIntRect(mPictureRegion));
if (twoDBuffer) {
twoDBuffer->Unlock2D();
} else {
buffer->Unlock();
}
v.forget(aOutVideoData);
return S_OK;
}
HRESULT
WMFReader::CreateD3DVideoFrame(IMFSample* aSample,
int64_t aTimestampUsecs,
int64_t aDurationUsecs,
int64_t aOffsetBytes,
VideoData** aOutVideoData)
{
NS_ENSURE_TRUE(aSample, E_POINTER);
NS_ENSURE_TRUE(aOutVideoData, E_POINTER);
NS_ENSURE_TRUE(mDXVA2Manager, E_ABORT);
NS_ENSURE_TRUE(mUseHwAccel, E_ABORT);
*aOutVideoData = nullptr;
HRESULT hr;
nsRefPtr<Image> image;
hr = mDXVA2Manager->CopyToImage(aSample,
mPictureRegion,
mDecoder->GetImageContainer(),
getter_AddRefs(image));
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
NS_ENSURE_TRUE(image, E_FAIL);
nsRefPtr<VideoData> v = VideoData::CreateFromImage(mInfo.mVideo,
mDecoder->GetImageContainer(),
aOffsetBytes,
aTimestampUsecs,
aDurationUsecs,
image.forget(),
false,
-1,
ToIntRect(mPictureRegion));
NS_ENSURE_TRUE(v, E_FAIL);
v.forget(aOutVideoData);
return S_OK;
}
bool
WMFReader::DecodeVideoFrame(bool &aKeyframeSkip,
int64_t aTimeThreshold)
{
NS_ASSERTION(mDecoder->OnDecodeThread(), "Should be on decode thread.");
// Record number of frames decoded and parsed. Automatically update the
// stats counters using the AutoNotifyDecoded stack-based class.
uint32_t parsed = 0, decoded = 0;
AbstractMediaDecoder::AutoNotifyDecoded autoNotify(mDecoder, parsed, decoded);
HRESULT hr;
hr = mSourceReader->ReadSample(MF_SOURCE_READER_FIRST_VIDEO_STREAM,
0, // control flags
0, // read stream index
nullptr,
nullptr,
nullptr);
if (FAILED(hr)) {
DECODER_LOG("WMFReader::DecodeVideoData() ReadSample failed with hr=0x%x", hr);
return false;
}
DWORD flags = 0;
LONGLONG timestampHns = 0;
RefPtr<IMFSample> sample;
hr = mSourceReaderCallback->Wait(&flags, &timestampHns, byRef(sample));
if (flags & MF_SOURCE_READERF_ERROR) {
NS_WARNING("WMFReader: Catastrophic failure reading video sample");
// Future ReadSample() calls will fail, so give up and report end of stream.
return false;
}
if (FAILED(hr)) {
// Unknown failure, ask caller to try again?
return true;
}
if (!sample) {
if ((flags & MF_SOURCE_READERF_ENDOFSTREAM)) {
DECODER_LOG("WMFReader; Null sample after video decode, at end of stream");
return false;
}
DECODER_LOG("WMFReader; Null sample after video decode. Maybe insufficient data...");
return true;
}
if ((flags & MF_SOURCE_READERF_CURRENTMEDIATYPECHANGED)) {
DECODER_LOG("WMFReader: Video media type changed!");
RefPtr<IMFMediaType> mediaType;
hr = mSourceReader->GetCurrentMediaType(MF_SOURCE_READER_FIRST_VIDEO_STREAM,
byRef(mediaType));
if (FAILED(hr) ||
FAILED(ConfigureVideoFrameGeometry(mediaType))) {
NS_WARNING("Failed to reconfigure video media type");
return false;
}
}
int64_t timestamp = HNsToUsecs(timestampHns);
if (timestamp < aTimeThreshold) {
return true;
}
int64_t offset = mDecoder->GetResource()->Tell();
int64_t duration = GetSampleDuration(sample);
VideoData* v = nullptr;
if (mUseHwAccel) {
hr = CreateD3DVideoFrame(sample, timestamp, duration, offset, &v);
} else {
hr = CreateBasicVideoFrame(sample, timestamp, duration, offset, &v);
}
NS_ENSURE_TRUE(SUCCEEDED(hr) && v, false);
parsed++;
decoded++;
mVideoQueue.Push(v);
#ifdef LOG_SAMPLE_DECODE
DECODER_LOG("Decoded video sample timestamp=%lld duration=%lld stride=%d height=%u flags=%u",
timestamp, duration, mVideoStride, mVideoHeight, flags);
#endif
if ((flags & MF_SOURCE_READERF_ENDOFSTREAM)) {
// End of stream.
DECODER_LOG("End of video stream");
return false;
}
return true;
}
nsRefPtr<MediaDecoderReader::SeekPromise>
WMFReader::Seek(int64_t aTargetUs, int64_t aEndTime)
{
nsresult res = SeekInternal(aTargetUs);
if (NS_FAILED(res)) {
return SeekPromise::CreateAndReject(res, __func__);
} else {
return SeekPromise::CreateAndResolve(aTargetUs, __func__);
}
}
nsresult
WMFReader::SeekInternal(int64_t aTargetUs)
{
DECODER_LOG("WMFReader::Seek() %lld", aTargetUs);
NS_ASSERTION(mDecoder->OnDecodeThread(), "Should be on decode thread.");
#ifdef DEBUG
bool canSeek = false;
GetSourceReaderCanSeek(mSourceReader, canSeek);
NS_ASSERTION(canSeek, "WMFReader::Seek() should only be called if we can seek!");
#endif
nsresult rv = ResetDecode();
NS_ENSURE_SUCCESS(rv, rv);
// Mark that we must recapture the audio frame count from the next sample.
// WMF doesn't set a discontinuity marker when we seek to time 0, so we
// must remember to recapture the audio frame offset and reset the frame
// sum on the next audio packet we decode.
mMustRecaptureAudioPosition = true;
AutoPropVar var;
HRESULT hr = InitPropVariantFromInt64(UsecsToHNs(aTargetUs), &var);
NS_ENSURE_TRUE(SUCCEEDED(hr), NS_ERROR_FAILURE);
hr = mSourceReader->SetCurrentPosition(GUID_NULL, var);
NS_ENSURE_TRUE(SUCCEEDED(hr), NS_ERROR_FAILURE);
return NS_OK;
}
} // namespace mozilla
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