Source code

Revision control

Other Tools

/* -*- 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 */
#if !defined(WMFVideoMFTManager_h_)
# define WMFVideoMFTManager_h_
# include "MFTDecoder.h"
# include "MediaResult.h"
# include "WMF.h"
# include "WMFMediaDataDecoder.h"
# include "mozilla/Atomics.h"
# include "mozilla/RefPtr.h"
# include "mozilla/gfx/Rect.h"
namespace mozilla {
class DXVA2Manager;
class WMFVideoMFTManager : public MFTManager {
WMFVideoMFTManager(const VideoInfo& aConfig,
layers::KnowsCompositor* aKnowsCompositor,
layers::ImageContainer* aImageContainer, float aFramerate,
const CreateDecoderParams::OptionSet& aOptions,
bool aDXVAEnabled);
MediaResult Init();
HRESULT Input(MediaRawData* aSample) override;
HRESULT Output(int64_t aStreamOffset, RefPtr<MediaData>& aOutput) override;
void Shutdown() override;
bool IsHardwareAccelerated(nsACString& aFailureReason) const override;
TrackInfo::TrackType GetType() override { return TrackInfo::kVideoTrack; }
nsCString GetDescriptionName() const override;
MediaDataDecoder::ConversionRequired NeedsConversion() const override {
return mStreamType == H264
? MediaDataDecoder::ConversionRequired::kNeedAnnexB
: MediaDataDecoder::ConversionRequired::kNeedNone;
MediaResult ValidateVideoInfo();
bool InitializeDXVA();
MediaResult InitInternal();
HRESULT CreateBasicVideoFrame(IMFSample* aSample, int64_t aStreamOffset,
VideoData** aOutVideoData);
HRESULT CreateD3DVideoFrame(IMFSample* aSample, int64_t aStreamOffset,
VideoData** aOutVideoData);
HRESULT SetDecoderMediaTypes();
bool CanUseDXVA(IMFMediaType* aType, float aFramerate);
// Gets the duration from aSample, and if an unknown or invalid duration is
// returned from WMF, this instead returns the last known input duration.
// The sample duration is unknown per `IMFSample::GetSampleDuration` docs
// 'If the retrieved duration is zero, or if the method returns
// MF_E_NO_SAMPLE_DURATION, the duration is unknown'. The same API also
// suggests it may return other unspecified error codes, so we handle those
// too. It also returns a signed int, but since a negative duration doesn't
// make sense, we also handle that case.
media::TimeUnit GetSampleDurationOrLastKnownDuration(
IMFSample* aSample) const;
// Video frame geometry.
const VideoInfo mVideoInfo;
const gfx::IntSize mImageSize;
gfx::IntSize mDecodedImageSize;
uint32_t mVideoStride;
Maybe<gfx::YUVColorSpace> mColorSpace;
gfx::ColorRange mColorRange;
RefPtr<layers::ImageContainer> mImageContainer;
RefPtr<layers::KnowsCompositor> mKnowsCompositor;
UniquePtr<DXVA2Manager> mDXVA2Manager;
media::TimeUnit mLastDuration;
bool mDXVAEnabled;
bool mUseHwAccel;
nsCString mDXVAFailureReason;
enum StreamType { Unknown, H264, VP8, VP9 };
StreamType mStreamType;
// Get a string representation of the stream type. Useful for logging.
inline const char* StreamTypeString() const {
switch (mStreamType) {
case StreamType::H264:
return "H264";
case StreamType::VP8:
return "VP8";
case StreamType::VP9:
return "VP9";
MOZ_ASSERT(mStreamType == StreamType::Unknown);
return "Unknown";
const GUID& GetMFTGUID();
const GUID& GetMediaSubtypeGUID();
uint32_t mNullOutputCount = 0;
bool mGotValidOutputAfterNullOutput = false;
bool mGotExcessiveNullOutput = false;
bool mIsValid = true;
bool mIMFUsable = false;
const float mFramerate;
const bool mLowLatency;
} // namespace mozilla
#endif // WMFVideoMFTManager_h_