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/*
* Copyright (c) 2020 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef MODULES_VIDEO_CODING_FRAME_DEPENDENCIES_CALCULATOR_H_
#define MODULES_VIDEO_CODING_FRAME_DEPENDENCIES_CALCULATOR_H_
#include <stdint.h>
#include <vector>
#include "absl/container/inlined_vector.h"
#include "absl/types/optional.h"
#include "api/array_view.h"
#include "common_video/generic_frame_descriptor/generic_frame_info.h"
namespace webrtc {
// This class is thread compatible.
class FrameDependenciesCalculator {
public:
FrameDependenciesCalculator() = default;
FrameDependenciesCalculator(const FrameDependenciesCalculator&) = default;
FrameDependenciesCalculator& operator=(const FrameDependenciesCalculator&) =
default;
// Calculates frame dependencies based on previous encoder buffer usage.
absl::InlinedVector<int64_t, 5> FromBuffersUsage(
int64_t frame_id,
rtc::ArrayView<const CodecBufferUsage> buffers_usage);
private:
struct BufferUsage {
absl::optional<int64_t> frame_id;
absl::InlinedVector<int64_t, 4> dependencies;
};
absl::InlinedVector<BufferUsage, 4> buffers_;
};
} // namespace webrtc
#endif // MODULES_VIDEO_CODING_FRAME_DEPENDENCIES_CALCULATOR_H_
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