WMFVideoMFTManager.h

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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/. */

#if !defined(WMFVideoMFTManager_h_)

#  define WMFVideoMFTManager_h_

#  include "MFTDecoder.h"

#  include "MediaResult.h"

#  include "PerformanceRecorder.h"

#  include "WMF.h"

#  include "WMFDecoderModule.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 {

 public:

  WMFVideoMFTManager(const VideoInfo& aConfig,

                     layers::KnowsCompositor* aKnowsCompositor,

                     layers::ImageContainer* aImageContainer, float aFramerate,

                     const CreateDecoderParams::OptionSet& aOptions,

                     bool aDXVAEnabled, Maybe<TrackingId> aTrackingId);

  ~WMFVideoMFTManager();

  MediaResult Init();

  HRESULT Input(MediaRawData* aSample) override;

  HRESULT Output(int64_t aStreamOffset, RefPtr<MediaData>& aOutput) override;

  void Flush() override;

  void Shutdown() override;

  bool IsHardwareAccelerated(nsACString& aFailureReason) const override;

  TrackInfo::TrackType GetType() override { return TrackInfo::kVideoTrack; }

  nsCString GetDescriptionName() const override;

  nsCString GetCodecName() const override;

  MediaDataDecoder::ConversionRequired NeedsConversion() const override {

    return mStreamType == WMFStreamType::H264 ||

                   mStreamType == WMFStreamType::HEVC

               ? MediaDataDecoder::ConversionRequired::kNeedAnnexB

               : MediaDataDecoder::ConversionRequired::kNeedNone;

 private:

  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* aInputType, IMFMediaType* aOutputType);

  // 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;

  const WMFStreamType mStreamType;

  // The size we update from the IMFMediaType which might include paddings when

  // the stream format changes. This is only used for software decoding.

  gfx::IntSize mSoftwareImageSize;

  // The picture size we update from the IMFMediaType when the stream format

  // changes. We assume it's equal to the image size by default (no cropping).

  // This is only used for software decoding.

  gfx::IntSize mSoftwarePictureSize;

  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;

  bool mZeroCopyNV12Texture;

  nsCString mDXVAFailureReason;

  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;

  PerformanceRecorderMulti<DecodeStage> mPerformanceRecorder;

  const Maybe<TrackingId> mTrackingId;

};

}  // namespace mozilla

#endif  // WMFVideoMFTManager_h_