blob: 3d1671a67691127252cdb94dee02c88d4b13f0ec [file] [log] [blame]
* Copyright (c) 2018 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.
#include <stdint.h>
#include <memory>
#include "api/video_codecs/vp8_frame_config.h"
#include "api/video_codecs/vp8_temporal_layers.h"
namespace webrtc {
// Interface for a class that verifies correctness of temporal layer
// configurations (dependencies, sync flag, etc).
// Intended to be used in tests as well as with real apps in debug mode.
class TemporalLayersChecker {
explicit TemporalLayersChecker(int num_temporal_layers);
virtual ~TemporalLayersChecker() {}
virtual bool CheckTemporalConfig(bool frame_is_keyframe,
const Vp8FrameConfig& frame_config);
static std::unique_ptr<TemporalLayersChecker> CreateTemporalLayersChecker(
Vp8TemporalLayersType type,
int num_temporal_layers);
struct BufferState {
BufferState() : is_keyframe(true), temporal_layer(0), sequence_number(0) {}
bool is_keyframe;
uint8_t temporal_layer;
uint32_t sequence_number;
bool CheckAndUpdateBufferState(BufferState* state,
bool* need_sync,
bool frame_is_keyframe,
uint8_t temporal_layer,
Vp8FrameConfig::BufferFlags flags,
uint32_t sequence_number,
uint32_t* lowest_sequence_referenced);
BufferState last_;
BufferState arf_;
BufferState golden_;
int num_temporal_layers_;
uint32_t sequence_number_;
uint32_t last_sync_sequence_number_;
uint32_t last_tl0_sequence_number_;
} // namespace webrtc