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// Copyright 2019 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef MEDIA_GPU_VP9_REFERENCE_FRAME_VECTOR_H_
#define MEDIA_GPU_VP9_REFERENCE_FRAME_VECTOR_H_
#include <array>
#include "base/memory/scoped_refptr.h"
#include "base/sequence_checker.h"
#include "media/filters/vp9_parser.h"
namespace media {
class VP9Picture;
// This class encapsulates VP9-specific reference frame management code. This
// class is thread afine.
class Vp9ReferenceFrameVector {
public:
Vp9ReferenceFrameVector();
Vp9ReferenceFrameVector(const Vp9ReferenceFrameVector&) = delete;
Vp9ReferenceFrameVector& operator=(const Vp9ReferenceFrameVector&) = delete;
~Vp9ReferenceFrameVector();
void Refresh(scoped_refptr<VP9Picture> pic);
void Clear();
scoped_refptr<VP9Picture> GetFrame(size_t index) const;
private:
std::array<scoped_refptr<VP9Picture>, kVp9NumRefFrames> reference_frames_;
SEQUENCE_CHECKER(sequence_checker_);
};
} // namespace media
#endif // MEDIA_GPU_VP9_REFERENCE_FRAME_VECTOR_H_