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a46bd4b9c7
This is a reland of efc71e565e
Differs from the original cl by not widening the type of
VideoCodec::width and VideoCodec::height.
Original change's description:
> Move class VideoCodec from common_types.h to its own api header file.
>
> Bug: webrtc:7660
> Change-Id: I91f19bfc2565461328f30081f8383e136419aefb
> Reviewed-on: https://webrtc-review.googlesource.com/79881
> Commit-Queue: Niels Moller <nisse@webrtc.org>
> Reviewed-by: Rasmus Brandt <brandtr@webrtc.org>
> Reviewed-by: Danil Chapovalov <danilchap@webrtc.org>
> Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
> Cr-Commit-Position: refs/heads/master@{#23544}
Bug: webrtc:7660
Change-Id: I7cf74a85a61ea2b831e6f32b3b3e17514ebefec8
Reviewed-on: https://webrtc-review.googlesource.com/82140
Commit-Queue: Niels Moller <nisse@webrtc.org>
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Reviewed-by: Danil Chapovalov <danilchap@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#23569}
48 lines
1.6 KiB
C++
48 lines
1.6 KiB
C++
/*
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* Copyright (c) 2018 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef MODULES_VIDEO_CODING_CODECS_VP9_SVC_RATE_ALLOCATOR_H_
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#define MODULES_VIDEO_CODING_CODECS_VP9_SVC_RATE_ALLOCATOR_H_
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#include <stdint.h>
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#include <vector>
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#include "api/video_codecs/video_codec.h"
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#include "common_video/include/video_bitrate_allocator.h"
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namespace webrtc {
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extern const float kSpatialLayeringRateScalingFactor;
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extern const float kTemporalLayeringRateScalingFactor;
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class SvcRateAllocator : public VideoBitrateAllocator {
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public:
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explicit SvcRateAllocator(const VideoCodec& codec);
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VideoBitrateAllocation GetAllocation(uint32_t total_bitrate_bps,
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uint32_t framerate_fps) override;
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private:
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VideoBitrateAllocation GetAllocationNormalVideo(
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uint32_t total_bitrate_bps) const;
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VideoBitrateAllocation GetAllocationScreenSharing(
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uint32_t total_bitrate_bps) const;
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std::vector<size_t> SplitBitrate(size_t num_layers,
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size_t total_bitrate,
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float rate_scaling_factor) const;
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bool AdjustAndVerify(std::vector<size_t>* spatial_layer_bitrate_bps) const;
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const VideoCodec codec_;
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};
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} // namespace webrtc
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#endif // MODULES_VIDEO_CODING_CODECS_VP9_SVC_RATE_ALLOCATOR_H_
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