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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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/. */
#ifndef mozilla_H264Converter_h
#define mozilla_H264Converter_h
#include "PlatformDecoderModule.h"
namespace mozilla {
// H264Converter is a MediaDataDecoder wrapper used to ensure that
// only AVCC or AnnexB is fed to the underlying MediaDataDecoder.
// The H264Converter allows playback of content where the SPS NAL may not be
// provided in the init segment (e.g. AVC3 or Annex B)
// H264Converter will monitor the input data, and will delay creation of the
// MediaDataDecoder until a SPS and PPS NALs have been extracted.
class H264Converter : public MediaDataDecoder {
public:
H264Converter(PlatformDecoderModule* aPDM,
const CreateDecoderParams& aParams);
virtual ~H264Converter();
RefPtr<InitPromise> Init() override;
void Input(MediaRawData* aSample) override;
void Flush() override;
void Drain() override;
void Shutdown() override;
bool IsHardwareAccelerated(nsACString& aFailureReason) const override;
const char* GetDescriptionName() const override
{
if (mDecoder) {
return mDecoder->GetDescriptionName();
}
return "H264Converter decoder (pending)";
}
void SetSeekThreshold(const media::TimeUnit& aTime) override;
nsresult GetLastError() const { return mLastError; }
private:
// Will create the required MediaDataDecoder if need AVCC and we have a SPS NAL.
// Returns NS_ERROR_FAILURE if error is permanent and can't be recovered and
// will set mError accordingly.
nsresult CreateDecoder(DecoderDoctorDiagnostics* aDiagnostics);
nsresult CreateDecoderAndInit(MediaRawData* aSample);
nsresult CheckForSPSChange(MediaRawData* aSample);
void UpdateConfigFromExtraData(MediaByteBuffer* aExtraData);
void OnDecoderInitDone(const TrackType aTrackType);
void OnDecoderInitFailed(MediaResult aError);
RefPtr<PlatformDecoderModule> mPDM;
VideoInfo mCurrentConfig;
RefPtr<layers::KnowsCompositor> mKnowsCompositor;
RefPtr<layers::ImageContainer> mImageContainer;
const RefPtr<TaskQueue> mTaskQueue;
nsTArray<RefPtr<MediaRawData>> mMediaRawSamples;
MediaDataDecoderCallback* mCallback;
RefPtr<MediaDataDecoder> mDecoder;
MozPromiseRequestHolder<InitPromise> mInitPromiseRequest;
RefPtr<GMPCrashHelper> mGMPCrashHelper;
bool mNeedAVCC;
nsresult mLastError;
bool mNeedKeyframe = true;
};
} // namespace mozilla
#endif // mozilla_H264Converter_h
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