mirror of
https://github.com/mollyim/webrtc.git
synced 2025-05-16 23:30:48 +01:00
4206a0a849
In order to have public video bitrate allocator factory, the video bitrate allocator has be part of the api. Bug: webrtc:9513 Change-Id: Ia2e5ab9eb988c710c1ac492afccc470a92544aa2 Reviewed-on: https://webrtc-review.googlesource.com/88083 Reviewed-by: Stefan Holmer <stefan@webrtc.org> Reviewed-by: Rasmus Brandt <brandtr@webrtc.org> Reviewed-by: Erik Språng <sprang@webrtc.org> Commit-Queue: Jiawei Ou <ouj@fb.com> Cr-Commit-Position: refs/heads/master@{#24073}
62 lines
2.1 KiB
C++
62 lines
2.1 KiB
C++
/*
|
|
* Copyright (c) 2016 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_UTILITY_SIMULCAST_RATE_ALLOCATOR_H_
|
|
#define MODULES_VIDEO_CODING_UTILITY_SIMULCAST_RATE_ALLOCATOR_H_
|
|
|
|
#include <stdint.h>
|
|
|
|
#include <map>
|
|
#include <memory>
|
|
#include <vector>
|
|
|
|
#include "api/video/video_bitrate_allocator.h"
|
|
#include "api/video_codecs/video_encoder.h"
|
|
#include "common_types.h" // NOLINT(build/include)
|
|
#include "rtc_base/constructormagic.h"
|
|
|
|
namespace webrtc {
|
|
|
|
class SimulcastRateAllocator : public VideoBitrateAllocator {
|
|
public:
|
|
explicit SimulcastRateAllocator(const VideoCodec& codec);
|
|
|
|
VideoBitrateAllocation GetAllocation(uint32_t total_bitrate_bps,
|
|
uint32_t framerate) override;
|
|
const VideoCodec& GetCodec() const;
|
|
|
|
static float GetTemporalRateAllocation(int num_layers, int temporal_id);
|
|
|
|
private:
|
|
void DistributeAllocationToSimulcastLayers(
|
|
uint32_t total_bitrate_bps,
|
|
VideoBitrateAllocation* allocated_bitrates_bps) const;
|
|
void DistributeAllocationToTemporalLayers(
|
|
uint32_t framerate,
|
|
VideoBitrateAllocation* allocated_bitrates_bps) const;
|
|
std::vector<uint32_t> DefaultTemporalLayerAllocation(int bitrate_kbps,
|
|
int max_bitrate_kbps,
|
|
int framerate,
|
|
int simulcast_id) const;
|
|
std::vector<uint32_t> ScreenshareTemporalLayerAllocation(
|
|
int bitrate_kbps,
|
|
int max_bitrate_kbps,
|
|
int framerate,
|
|
int simulcast_id) const;
|
|
int NumTemporalStreams(size_t simulcast_id) const;
|
|
|
|
const VideoCodec codec_;
|
|
|
|
RTC_DISALLOW_COPY_AND_ASSIGN(SimulcastRateAllocator);
|
|
};
|
|
|
|
} // namespace webrtc
|
|
|
|
#endif // MODULES_VIDEO_CODING_UTILITY_SIMULCAST_RATE_ALLOCATOR_H_
|