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9fd2908f2e
It's not removed from VideoBitrateAllocationParameters as that struct is part of the API. Bug: webrtc:9883 Change-Id: I69f683e3c1dc3a0edc1711f6289514b86b05ad77 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/149815 Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org> Commit-Queue: Jonas Olsson <jonasolsson@webrtc.org> Cr-Commit-Position: refs/heads/master@{#28935}
61 lines
2.1 KiB
C++
61 lines
2.1 KiB
C++
/*
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* Copyright (c) 2016 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_UTILITY_SIMULCAST_RATE_ALLOCATOR_H_
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#define MODULES_VIDEO_CODING_UTILITY_SIMULCAST_RATE_ALLOCATOR_H_
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#include <stddef.h>
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#include <stdint.h>
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#include <vector>
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#include "api/video/video_bitrate_allocation.h"
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#include "api/video/video_bitrate_allocator.h"
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#include "api/video_codecs/video_codec.h"
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#include "rtc_base/constructor_magic.h"
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namespace webrtc {
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class SimulcastRateAllocator : public VideoBitrateAllocator {
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public:
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explicit SimulcastRateAllocator(const VideoCodec& codec);
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~SimulcastRateAllocator() override;
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VideoBitrateAllocation Allocate(
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VideoBitrateAllocationParameters parameters) override;
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const VideoCodec& GetCodec() const;
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static float GetTemporalRateAllocation(int num_layers, int temporal_id);
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private:
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void DistributeAllocationToSimulcastLayers(
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uint32_t total_bitrate_bps,
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VideoBitrateAllocation* allocated_bitrates_bps);
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void DistributeAllocationToTemporalLayers(
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VideoBitrateAllocation* allocated_bitrates_bps) const;
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std::vector<uint32_t> DefaultTemporalLayerAllocation(int bitrate_kbps,
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int max_bitrate_kbps,
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int simulcast_id) const;
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std::vector<uint32_t> ScreenshareTemporalLayerAllocation(
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int bitrate_kbps,
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int max_bitrate_kbps,
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int simulcast_id) const;
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int NumTemporalStreams(size_t simulcast_id) const;
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const VideoCodec codec_;
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const double hysteresis_factor_;
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std::vector<bool> stream_enabled_;
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RTC_DISALLOW_COPY_AND_ASSIGN(SimulcastRateAllocator);
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};
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} // namespace webrtc
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#endif // MODULES_VIDEO_CODING_UTILITY_SIMULCAST_RATE_ALLOCATOR_H_
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