chromium/media/gpu/av1_decoder.h

// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef MEDIA_GPU_AV1_DECODER_H_
#define MEDIA_GPU_AV1_DECODER_H_

#include <array>
#include <memory>

#include "base/containers/span.h"
#include "base/memory/raw_ptr.h"
#include "base/sequence_checker.h"
#include "media/base/video_codecs.h"
#include "media/base/video_color_space.h"
#include "media/base/video_types.h"
#include "media/gpu/accelerated_video_decoder.h"
#include "media/gpu/av1_picture.h"
#include "media/gpu/media_gpu_export.h"
#include "third_party/libgav1/src/src/utils/constants.h"

// For libgav1::RefCountedBufferPtr.
#include "third_party/libgav1/src/src/buffer_pool.h"
// For libgav1::ObuSequenceHeader. std::optional demands ObuSequenceHeader to
// fulfill std::is_trivially_constructible if it is forward-declared. But
// ObuSequenceHeader doesn't.
#include "third_party/libgav1/src/src/obu_parser.h"
#include "ui/gfx/hdr_metadata.h"

namespace libgav1 {
struct DecoderState;
struct ObuFrameHeader;
template <typename T>
class Vector;
}  // namespace libgav1

namespace media {
AV1ReferenceFrameVector;

// Clients of this class are expected to pass an AV1 OBU stream and are expected
// to provide an implementation of AV1Accelerator for offloading final steps
// of the decoding process.
//
// This class must be created, called and destroyed on a single thread, and
// does nothing internally on any other thread.
class MEDIA_GPU_EXPORT AV1Decoder : public AcceleratedVideoDecoder { … };

}  // namespace media

#endif  // MEDIA_GPU_AV1_DECODER_H_