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ed56cf44b0
Bug: webrtc:10769 Change-Id: I31de2d21d5325eb4b175815739c2477352842425 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/144381 Commit-Queue: Elad Alon <eladalon@webrtc.org> Reviewed-by: Erik Språng <sprang@webrtc.org> Cr-Commit-Position: refs/heads/master@{#28448}
58 lines
2.1 KiB
C++
58 lines
2.1 KiB
C++
/*
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* Copyright (c) 2019 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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#include "api/video_codecs/vp8_temporal_layers_factory.h"
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#include <algorithm>
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#include <utility>
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#include <vector>
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#include "absl/memory/memory.h"
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#include "api/fec_controller_override.h"
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#include "modules/video_coding/codecs/vp8/default_temporal_layers.h"
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#include "modules/video_coding/codecs/vp8/screenshare_layers.h"
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#include "modules/video_coding/utility/simulcast_utility.h"
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#include "rtc_base/checks.h"
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namespace webrtc {
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std::unique_ptr<Vp8FrameBufferController> Vp8TemporalLayersFactory::Create(
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const VideoCodec& codec,
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const VideoEncoder::Settings& settings,
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FecControllerOverride* fec_controller_override) {
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std::vector<std::unique_ptr<Vp8FrameBufferController>> controllers;
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const int num_streams = SimulcastUtility::NumberOfSimulcastStreams(codec);
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RTC_DCHECK_GE(num_streams, 1);
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controllers.reserve(num_streams);
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for (int i = 0; i < num_streams; ++i) {
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int num_temporal_layers =
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SimulcastUtility::NumberOfTemporalLayers(codec, i);
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if (SimulcastUtility::IsConferenceModeScreenshare(codec) && i == 0) {
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// Legacy screenshare layers supports max 2 layers.
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num_temporal_layers = std::max(2, num_temporal_layers);
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controllers.push_back(
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absl::make_unique<ScreenshareLayers>(num_temporal_layers));
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} else {
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controllers.push_back(
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absl::make_unique<DefaultTemporalLayers>(num_temporal_layers));
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}
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}
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return absl::make_unique<Vp8TemporalLayers>(std::move(controllers),
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fec_controller_override);
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}
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std::unique_ptr<Vp8FrameBufferControllerFactory>
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Vp8TemporalLayersFactory::Clone() const {
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return absl::make_unique<Vp8TemporalLayersFactory>();
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}
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} // namespace webrtc
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