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ceb44959ca
This is a reland of https://webrtc-review.googlesource.com/c/src/+/174261 Patchset 1 contains the old cl (plus a merge conflict fix). Later patchets are bufixes: A PeerConnection can be created without a Call instance (in the case of DataChannel only), so we can't always use that to fetch the current trials. Old CL descritpion: This replaces field_trial:: -based functions from system_wrappers. Field trials are still used as fallback, but injectable trials are now possible. // Since re-land is otherwise unchanged, setting previous reviewers as TBR TBR=kthelgason@webrtc.org,mbonadei@webrtc.org,stefan@webrtc.org,srte@webrtc.org Bug: webrtc:11926 Change-Id: I57a9e8c3454f226f77fb93215bcac83da65034b0 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/185003 Commit-Queue: Erik Språng <sprang@webrtc.org> Reviewed-by: Per Kjellander <perkj@webrtc.org> Cr-Commit-Position: refs/heads/master@{#32163}
72 lines
2.2 KiB
C++
72 lines
2.2 KiB
C++
/*
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* Copyright (c) 2014 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 MEDIA_ENGINE_SIMULCAST_H_
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#define MEDIA_ENGINE_SIMULCAST_H_
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#include <stddef.h>
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#include <vector>
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#include "api/transport/webrtc_key_value_config.h"
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#include "api/units/data_rate.h"
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#include "api/video_codecs/video_encoder_config.h"
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namespace cricket {
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// Gets the total maximum bitrate for the |streams|.
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webrtc::DataRate GetTotalMaxBitrate(
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const std::vector<webrtc::VideoStream>& streams);
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// Adds any bitrate of |max_bitrate| that is above the total maximum bitrate for
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// the |layers| to the highest quality layer.
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void BoostMaxSimulcastLayer(webrtc::DataRate max_bitrate,
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std::vector<webrtc::VideoStream>* layers);
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// Round size to nearest simulcast-friendly size
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int NormalizeSimulcastSize(int size, size_t simulcast_layers);
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// Gets simulcast settings.
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std::vector<webrtc::VideoStream> GetSimulcastConfig(
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size_t min_layers,
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size_t max_layers,
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int width,
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int height,
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double bitrate_priority,
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int max_qp,
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bool is_screenshare_with_conference_mode,
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bool temporal_layers_supported,
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const webrtc::WebRtcKeyValueConfig& trials);
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// Gets the simulcast config layers for a non-screensharing case.
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std::vector<webrtc::VideoStream> GetNormalSimulcastLayers(
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size_t max_layers,
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int width,
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int height,
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double bitrate_priority,
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int max_qp,
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bool temporal_layers_supported,
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bool base_heavy_tl3_rate_alloc,
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const webrtc::WebRtcKeyValueConfig& trials);
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// Gets simulcast config layers for screenshare settings.
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std::vector<webrtc::VideoStream> GetScreenshareLayers(
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size_t max_layers,
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int width,
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int height,
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double bitrate_priority,
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int max_qp,
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bool temporal_layers_supported,
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bool base_heavy_tl3_rate_alloc,
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const webrtc::WebRtcKeyValueConfig& trials);
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} // namespace cricket
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#endif // MEDIA_ENGINE_SIMULCAST_H_
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