2725317b1f
Bug: webrtc:15860 Change-Id: Iabd7752ada2f8f774de1e2adc02a4157004bf43c Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/342720 Commit-Queue: Danil Chapovalov <danilchap@webrtc.org> Reviewed-by: Florent Castelli <orphis@webrtc.org> Reviewed-by: Erik Språng <sprang@webrtc.org> Cr-Commit-Position: refs/heads/main@{#41893}
90 lines
3.1 KiB
C++
90 lines
3.1 KiB
C++
/*
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* Copyright (c) 2018 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/builtin_video_encoder_factory.h"
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#include <memory>
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#include <string>
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#include <vector>
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#include "absl/types/optional.h"
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#include "api/environment/environment.h"
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#include "api/transport/field_trial_based_config.h"
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#include "api/video_codecs/sdp_video_format.h"
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#include "api/video_codecs/video_encoder.h"
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#include "api/video_codecs/video_encoder_factory.h"
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#include "media/engine/internal_encoder_factory.h"
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#include "media/engine/simulcast_encoder_adapter.h"
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namespace webrtc {
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namespace {
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// This class wraps the internal factory and adds simulcast.
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class BuiltinVideoEncoderFactory : public VideoEncoderFactory {
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public:
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BuiltinVideoEncoderFactory()
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: internal_encoder_factory_(new InternalEncoderFactory()) {}
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std::unique_ptr<VideoEncoder> CreateVideoEncoder(
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const SdpVideoFormat& format) override {
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// Try creating an InternalEncoderFactory-backed SimulcastEncoderAdapter.
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// The adapter has a passthrough mode for the case that simulcast is not
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// used, so all responsibility can be delegated to it.
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std::unique_ptr<VideoEncoder> encoder;
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if (format.IsCodecInList(
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internal_encoder_factory_->GetSupportedFormats())) {
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encoder = std::make_unique<SimulcastEncoderAdapter>(
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/*primary_factory=*/internal_encoder_factory_.get(),
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/*fallback_factory=*/nullptr, format, FieldTrialBasedConfig());
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}
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return encoder;
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}
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std::unique_ptr<VideoEncoder> Create(const Environment& env,
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const SdpVideoFormat& format) override {
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// Try creating an InternalEncoderFactory-backed SimulcastEncoderAdapter.
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// The adapter has a passthrough mode for the case that simulcast is not
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// used, so all responsibility can be delegated to it.
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if (format.IsCodecInList(
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internal_encoder_factory_->GetSupportedFormats())) {
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return std::make_unique<SimulcastEncoderAdapter>(
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env,
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/*primary_factory=*/internal_encoder_factory_.get(),
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/*fallback_factory=*/nullptr, format);
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}
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return nullptr;
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}
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std::vector<SdpVideoFormat> GetSupportedFormats() const override {
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return internal_encoder_factory_->GetSupportedFormats();
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}
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CodecSupport QueryCodecSupport(
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const SdpVideoFormat& format,
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absl::optional<std::string> scalability_mode) const override {
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return internal_encoder_factory_->QueryCodecSupport(format,
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scalability_mode);
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}
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private:
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const std::unique_ptr<VideoEncoderFactory> internal_encoder_factory_;
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};
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} // namespace
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std::unique_ptr<VideoEncoderFactory> CreateBuiltinVideoEncoderFactory() {
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return std::make_unique<BuiltinVideoEncoderFactory>();
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}
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} // namespace webrtc
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