FFmpegAudioDecoder.h

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/* 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 FFmpegAACDecoder_h_

#define FFmpegAACDecoder_h_

#include "FFmpegDataDecoder.h"

#include "FFmpegLibWrapper.h"

namespace mozilla {

template <int V>

class FFmpegAudioDecoder {};

template <>

class FFmpegAudioDecoder<LIBAV_VER>;

DDLoggedTypeNameAndBase(FFmpegAudioDecoder<LIBAV_VER>,

                        FFmpegDataDecoder<LIBAV_VER>);

template <>

class FFmpegAudioDecoder<LIBAV_VER>

    : public FFmpegDataDecoder<LIBAV_VER>,

      public DecoderDoctorLifeLogger<FFmpegAudioDecoder<LIBAV_VER>> {

 public:

  FFmpegAudioDecoder(const FFmpegLibWrapper* aLib,

                     const CreateDecoderParams& aDecoderParams);

  virtual ~FFmpegAudioDecoder();

  RefPtr<InitPromise> Init() override;

  void InitCodecContext() MOZ_REQUIRES(sMutex) override;

  static AVCodecID GetCodecId(const nsACString& aMimeType,

                              const AudioInfo& aInfo);

  nsCString GetDescriptionName() const override {

#ifdef USING_MOZFFVPX

    return "ffvpx audio decoder"_ns;

#else

    return "ffmpeg audio decoder"_ns;

#endif

  nsCString GetCodecName() const override;

 private:

  MediaResult DoDecode(MediaRawData* aSample, uint8_t* aData, int aSize,

                       bool* aGotFrame, DecodedData& aResults) override;

  MediaResult DecodeUsingFFmpeg(AVPacket* aPacket, bool& aDecoded,

                                MediaRawData* aSample, DecodedData& aResults,

                                bool* aGotFrame);

  MediaResult PostProcessOutput(bool aDecoded, MediaRawData* aSample,

                                DecodedData& aResults, bool* aGotFrame,

                                int32_t aSubmitted);

  const AudioInfo mAudioInfo;

  // True if the audio will be downmixed and rendered in mono.

  bool mDefaultPlaybackDeviceMono;

};

}  // namespace mozilla

#endif  // FFmpegAACDecoder_h_