mirror of
https://github.com/mollyim/webrtc.git
synced 2025-05-14 14:20:45 +01:00
bf35298996
All frames are checked against hard-coded dependency graph using new helper class. It's invoked in RTC_DCHECK(). Only DefaultTemporalLayers are fully implemented in this CL, checker for ScreenshareLayers is not doing anything for now. Bug: none Change-Id: I3ec017176d8c25f7572c8f161e52f2ebfac8220f Reviewed-on: https://webrtc-review.googlesource.com/3740 Reviewed-by: Per Kjellander <perkj@webrtc.org> Reviewed-by: Erik Språng <sprang@webrtc.org> Commit-Queue: Ilya Nikolaevskiy <ilnik@webrtc.org> Cr-Commit-Position: refs/heads/master@{#20066}
90 lines
3 KiB
C++
90 lines
3 KiB
C++
/* Copyright (c) 2013 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.
|
|
*/
|
|
/*
|
|
* This file defines classes for doing temporal layers with VP8.
|
|
*/
|
|
#ifndef MODULES_VIDEO_CODING_CODECS_VP8_DEFAULT_TEMPORAL_LAYERS_H_
|
|
#define MODULES_VIDEO_CODING_CODECS_VP8_DEFAULT_TEMPORAL_LAYERS_H_
|
|
|
|
#include <set>
|
|
#include <vector>
|
|
|
|
#include "modules/video_coding/codecs/vp8/temporal_layers.h"
|
|
|
|
#include "api/optional.h"
|
|
|
|
namespace webrtc {
|
|
|
|
class DefaultTemporalLayers : public TemporalLayers {
|
|
public:
|
|
DefaultTemporalLayers(int number_of_temporal_layers,
|
|
uint8_t initial_tl0_pic_idx);
|
|
virtual ~DefaultTemporalLayers() {}
|
|
|
|
// Returns the recommended VP8 encode flags needed. May refresh the decoder
|
|
// and/or update the reference buffers.
|
|
TemporalLayers::FrameConfig UpdateLayerConfig(uint32_t timestamp) override;
|
|
|
|
// Update state based on new bitrate target and incoming framerate.
|
|
// Returns the bitrate allocation for the active temporal layers.
|
|
std::vector<uint32_t> OnRatesUpdated(int bitrate_kbps,
|
|
int max_bitrate_kbps,
|
|
int framerate) override;
|
|
|
|
bool UpdateConfiguration(vpx_codec_enc_cfg_t* cfg) override;
|
|
|
|
void PopulateCodecSpecific(bool frame_is_keyframe,
|
|
const TemporalLayers::FrameConfig& tl_config,
|
|
CodecSpecificInfoVP8* vp8_info,
|
|
uint32_t timestamp) override;
|
|
|
|
void FrameEncoded(unsigned int size, int qp) override {}
|
|
|
|
uint8_t Tl0PicIdx() const override;
|
|
|
|
private:
|
|
const size_t num_layers_;
|
|
const std::vector<unsigned int> temporal_ids_;
|
|
const std::vector<bool> temporal_layer_sync_;
|
|
const std::vector<TemporalLayers::FrameConfig> temporal_pattern_;
|
|
|
|
uint8_t tl0_pic_idx_;
|
|
uint8_t pattern_idx_;
|
|
bool last_base_layer_sync_;
|
|
rtc::Optional<std::vector<uint32_t>> new_bitrates_kbps_;
|
|
};
|
|
|
|
class DefaultTemporalLayersChecker : public TemporalLayersChecker {
|
|
public:
|
|
DefaultTemporalLayersChecker(int number_of_temporal_layers,
|
|
uint8_t initial_tl0_pic_idx);
|
|
bool CheckTemporalConfig(
|
|
bool frame_is_keyframe,
|
|
const TemporalLayers::FrameConfig& frame_config) override;
|
|
|
|
private:
|
|
struct BufferState {
|
|
BufferState()
|
|
: is_updated_this_cycle(false), is_keyframe(true), pattern_idx(0) {}
|
|
|
|
bool is_updated_this_cycle;
|
|
bool is_keyframe;
|
|
uint8_t pattern_idx;
|
|
};
|
|
const size_t num_layers_;
|
|
std::vector<unsigned int> temporal_ids_;
|
|
const std::vector<std::set<uint8_t>> temporal_dependencies_;
|
|
BufferState last_;
|
|
BufferState arf_;
|
|
BufferState golden_;
|
|
uint8_t pattern_idx_;
|
|
};
|
|
|
|
} // namespace webrtc
|
|
#endif // MODULES_VIDEO_CODING_CODECS_VP8_DEFAULT_TEMPORAL_LAYERS_H_
|