/* -*- 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(AOMDecoder_h_)

#define AOMDecoder_h_

#include "PlatformDecoderModule.h"

#include "mozilla/Span.h"

#include <stdint.h>

#include "aom/aom_decoder.h"

namespace mozilla {

DDLoggedTypeDeclNameAndBase(AOMDecoder, MediaDataDecoder);

class AOMDecoder

  : public MediaDataDecoder

  , public DecoderDoctorLifeLogger<AOMDecoder>

{

public:

  explicit AOMDecoder(const CreateDecoderParams& aParams);

  RefPtr<InitPromise> Init() override;

  RefPtr<DecodePromise> Decode(MediaRawData* aSample) override;

  RefPtr<DecodePromise> Drain() override;

  RefPtr<FlushPromise> Flush() override;

  RefPtr<ShutdownPromise> Shutdown() override;

  nsCString GetDescriptionName() const override

  {

    return NS_LITERAL_CSTRING("av1 libaom video decoder");

  }

  // Return true if aMimeType is a one of the strings used

  // by our demuxers to identify AV1 streams.

  static bool IsAV1(const nsACString& aMimeType);

  // Return true if a sample is a keyframe.

  static bool IsKeyframe(Span<const uint8_t> aBuffer);

  // Return the frame dimensions for a sample.

  static gfx::IntSize GetFrameSize(Span<const uint8_t> aBuffer);

private:

  ~AOMDecoder();

  RefPtr<DecodePromise> ProcessDecode(MediaRawData* aSample);

  const RefPtr<layers::ImageContainer> mImageContainer;

  const RefPtr<TaskQueue> mTaskQueue;

  // AOM decoder state

  aom_codec_ctx_t mCodec;

  const VideoInfo& mInfo;

};

} // namespace mozilla

#endif // AOMDecoder_h_