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/*
* Copyright (c) 2018 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "api/video/builtin_video_bitrate_allocator_factory.h"
#include <memory>
#include "api/environment/environment.h"
#include "api/video/video_bitrate_allocator.h"
#include "api/video/video_bitrate_allocator_factory.h"
#include "api/video/video_codec_type.h"
#include "api/video_codecs/video_codec.h"
#include "modules/video_coding/svc/svc_rate_allocator.h"
#include "modules/video_coding/utility/simulcast_rate_allocator.h"
namespace webrtc {
namespace {
class BuiltinVideoBitrateAllocatorFactory
: public VideoBitrateAllocatorFactory {
public:
BuiltinVideoBitrateAllocatorFactory() = default;
~BuiltinVideoBitrateAllocatorFactory() override = default;
std::unique_ptr<VideoBitrateAllocator> Create(
const Environment& env,
const VideoCodec& codec) override {
// support simulcast and use it for VP9/AV1 simulcast as well.
if ((codec.codecType == kVideoCodecAV1 ||
codec.codecType == kVideoCodecVP9) &&
codec.numberOfSimulcastStreams <= 1) {
return std::make_unique<SvcRateAllocator>(codec, env.field_trials());
}
return std::make_unique<SimulcastRateAllocator>(env, codec);
}
};
} // namespace
std::unique_ptr<VideoBitrateAllocatorFactory>
CreateBuiltinVideoBitrateAllocatorFactory() {
return std::make_unique<BuiltinVideoBitrateAllocatorFactory>();
}
} // namespace webrtc