frame_dependencies_calculator.h (1514B)
1 /* 2 * Copyright (c) 2020 The WebRTC project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #ifndef MODULES_VIDEO_CODING_FRAME_DEPENDENCIES_CALCULATOR_H_ 12 #define MODULES_VIDEO_CODING_FRAME_DEPENDENCIES_CALCULATOR_H_ 13 14 #include <stdint.h> 15 16 #include <optional> 17 18 #include "absl/container/inlined_vector.h" 19 #include "api/array_view.h" 20 #include "common_video/generic_frame_descriptor/generic_frame_info.h" 21 22 namespace webrtc { 23 24 // This class is thread compatible. 25 class FrameDependenciesCalculator { 26 public: 27 FrameDependenciesCalculator() = default; 28 FrameDependenciesCalculator(const FrameDependenciesCalculator&) = default; 29 FrameDependenciesCalculator& operator=(const FrameDependenciesCalculator&) = 30 default; 31 32 // Calculates frame dependencies based on previous encoder buffer usage. 33 absl::InlinedVector<int64_t, 5> FromBuffersUsage( 34 int64_t frame_id, 35 ArrayView<const CodecBufferUsage> buffers_usage); 36 37 private: 38 struct BufferUsage { 39 std::optional<int64_t> frame_id; 40 absl::InlinedVector<int64_t, 4> dependencies; 41 }; 42 43 absl::InlinedVector<BufferUsage, 4> buffers_; 44 }; 45 46 } // namespace webrtc 47 48 #endif // MODULES_VIDEO_CODING_FRAME_DEPENDENCIES_CALCULATOR_H_