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bb60a3a5fa
This CL moves all temporal layer rate allocation from DefaultTemporalLayers and ScreenshareLayers into SimulcastRateAllocator. This means we don't need an extra call-out to the TemporalLayers interface to get the last allocation, which simplifies the code path a lot. It also paves the wave for removing the TemporalLayersFactory interface (in a separate cl), which will further simplify the ownership model. Bug: webrtc:9012 Change-Id: I6540b1848efa1a136dce449f13902ad479d5ee37 Reviewed-on: https://webrtc-review.googlesource.com/62420 Commit-Queue: Erik Språng <sprang@webrtc.org> Reviewed-by: Stefan Holmer <stefan@webrtc.org> Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org> Cr-Commit-Position: refs/heads/master@{#22502}
69 lines
2.5 KiB
C++
69 lines
2.5 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_CODECS_VP8_SIMULCAST_RATE_ALLOCATOR_H_
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#define MODULES_VIDEO_CODING_CODECS_VP8_SIMULCAST_RATE_ALLOCATOR_H_
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#include <stdint.h>
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#include <map>
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#include <memory>
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#include <vector>
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#include "api/video_codecs/video_encoder.h"
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#include "common_video/include/video_bitrate_allocator.h"
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#include "modules/video_coding/codecs/vp8/temporal_layers.h"
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#include "rtc_base/constructormagic.h"
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namespace webrtc {
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class SimulcastRateAllocator : public VideoBitrateAllocator,
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public TemporalLayersListener {
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public:
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explicit SimulcastRateAllocator(
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const VideoCodec& codec,
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std::unique_ptr<TemporalLayersFactory> tl_factory);
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void OnTemporalLayersCreated(int simulcast_id,
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TemporalLayers* layers) override;
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BitrateAllocation GetAllocation(uint32_t total_bitrate_bps,
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uint32_t framerate) override;
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uint32_t GetPreferredBitrateBps(uint32_t framerate) override;
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const VideoCodec& GetCodec() const;
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private:
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void DistributeAllocationToSimulcastLayers(
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uint32_t total_bitrate_bps,
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BitrateAllocation* allocated_bitrates_bps) const;
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void DistributeAllocationToTemporalLayers(
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uint32_t framerate,
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BitrateAllocation* 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 framerate,
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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 framerate,
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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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std::map<uint32_t, TemporalLayers*> temporal_layers_;
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std::unique_ptr<TemporalLayersFactory> tl_factory_;
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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_CODECS_VP8_SIMULCAST_RATE_ALLOCATOR_H_
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