mirror of
https://github.com/mollyim/webrtc.git
synced 2025-05-14 06:10:40 +01:00
97e04884bd
Bug: webrtc:8830 Change-Id: Iaa30488255f2e09e269274136d370740cd030902 Reviewed-on: https://webrtc-review.googlesource.com/78880 Reviewed-by: Erik Språng <sprang@webrtc.org> Reviewed-by: Magnus Jedvert <magjed@webrtc.org> Commit-Queue: Niels Moller <nisse@webrtc.org> Cr-Commit-Position: refs/heads/master@{#23529}
48 lines
1.6 KiB
C++
48 lines
1.6 KiB
C++
/*
|
|
* 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.
|
|
*/
|
|
|
|
#ifndef MODULES_VIDEO_CODING_CODECS_VP9_SVC_RATE_ALLOCATOR_H_
|
|
#define MODULES_VIDEO_CODING_CODECS_VP9_SVC_RATE_ALLOCATOR_H_
|
|
|
|
#include <stdint.h>
|
|
|
|
#include <vector>
|
|
|
|
#include "common_types.h" // NOLINT(build/include)
|
|
#include "common_video/include/video_bitrate_allocator.h"
|
|
|
|
namespace webrtc {
|
|
|
|
extern const float kSpatialLayeringRateScalingFactor;
|
|
extern const float kTemporalLayeringRateScalingFactor;
|
|
|
|
class SvcRateAllocator : public VideoBitrateAllocator {
|
|
public:
|
|
explicit SvcRateAllocator(const VideoCodec& codec);
|
|
|
|
VideoBitrateAllocation GetAllocation(uint32_t total_bitrate_bps,
|
|
uint32_t framerate_fps) override;
|
|
|
|
private:
|
|
VideoBitrateAllocation GetAllocationNormalVideo(
|
|
uint32_t total_bitrate_bps) const;
|
|
VideoBitrateAllocation GetAllocationScreenSharing(
|
|
uint32_t total_bitrate_bps) const;
|
|
std::vector<size_t> SplitBitrate(size_t num_layers,
|
|
size_t total_bitrate,
|
|
float rate_scaling_factor) const;
|
|
bool AdjustAndVerify(std::vector<size_t>* spatial_layer_bitrate_bps) const;
|
|
|
|
const VideoCodec codec_;
|
|
};
|
|
|
|
} // namespace webrtc
|
|
|
|
#endif // MODULES_VIDEO_CODING_CODECS_VP9_SVC_RATE_ALLOCATOR_H_
|