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122 lines
4.3 KiB
122 lines
4.3 KiB
/*
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* Copyright (c) 2017 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 "media/engine/multiplex_codec_factory.h"
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#include <map>
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#include <string>
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#include <utility>
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#include "absl/strings/match.h"
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#include "api/video_codecs/sdp_video_format.h"
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#include "media/base/codec.h"
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#include "media/base/media_constants.h"
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#include "modules/video_coding/codecs/multiplex/include/multiplex_decoder_adapter.h"
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#include "modules/video_coding/codecs/multiplex/include/multiplex_encoder_adapter.h"
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#include "rtc_base/logging.h"
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namespace {
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bool IsMultiplexCodec(const cricket::VideoCodec& codec) {
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return absl::EqualsIgnoreCase(codec.name.c_str(),
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cricket::kMultiplexCodecName);
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}
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} // anonymous namespace
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namespace webrtc {
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constexpr const char* kMultiplexAssociatedCodecName = cricket::kVp9CodecName;
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MultiplexEncoderFactory::MultiplexEncoderFactory(
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std::unique_ptr<VideoEncoderFactory> factory,
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bool supports_augmenting_data)
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: factory_(std::move(factory)),
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supports_augmenting_data_(supports_augmenting_data) {}
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std::vector<SdpVideoFormat> MultiplexEncoderFactory::GetSupportedFormats()
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const {
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std::vector<SdpVideoFormat> formats = factory_->GetSupportedFormats();
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for (const auto& format : formats) {
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if (absl::EqualsIgnoreCase(format.name, kMultiplexAssociatedCodecName)) {
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SdpVideoFormat multiplex_format = format;
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multiplex_format.parameters[cricket::kCodecParamAssociatedCodecName] =
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format.name;
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multiplex_format.name = cricket::kMultiplexCodecName;
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formats.push_back(multiplex_format);
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break;
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}
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}
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return formats;
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}
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VideoEncoderFactory::CodecInfo MultiplexEncoderFactory::QueryVideoEncoder(
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const SdpVideoFormat& format) const {
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if (!IsMultiplexCodec(cricket::VideoCodec(format)))
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return factory_->QueryVideoEncoder(format);
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return factory_->QueryVideoEncoder(
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SdpVideoFormat(kMultiplexAssociatedCodecName));
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}
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std::unique_ptr<VideoEncoder> MultiplexEncoderFactory::CreateVideoEncoder(
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const SdpVideoFormat& format) {
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if (!IsMultiplexCodec(cricket::VideoCodec(format)))
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return factory_->CreateVideoEncoder(format);
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const auto& it =
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format.parameters.find(cricket::kCodecParamAssociatedCodecName);
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if (it == format.parameters.end()) {
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RTC_LOG(LS_ERROR) << "No assicated codec for multiplex.";
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return nullptr;
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}
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SdpVideoFormat associated_format = format;
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associated_format.name = it->second;
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return std::unique_ptr<VideoEncoder>(new MultiplexEncoderAdapter(
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factory_.get(), associated_format, supports_augmenting_data_));
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}
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MultiplexDecoderFactory::MultiplexDecoderFactory(
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std::unique_ptr<VideoDecoderFactory> factory,
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bool supports_augmenting_data)
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: factory_(std::move(factory)),
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supports_augmenting_data_(supports_augmenting_data) {}
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std::vector<SdpVideoFormat> MultiplexDecoderFactory::GetSupportedFormats()
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const {
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std::vector<SdpVideoFormat> formats = factory_->GetSupportedFormats();
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for (const auto& format : formats) {
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if (absl::EqualsIgnoreCase(format.name, kMultiplexAssociatedCodecName)) {
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SdpVideoFormat multiplex_format = format;
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multiplex_format.parameters[cricket::kCodecParamAssociatedCodecName] =
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format.name;
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multiplex_format.name = cricket::kMultiplexCodecName;
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formats.push_back(multiplex_format);
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}
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}
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return formats;
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}
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std::unique_ptr<VideoDecoder> MultiplexDecoderFactory::CreateVideoDecoder(
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const SdpVideoFormat& format) {
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if (!IsMultiplexCodec(cricket::VideoCodec(format)))
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return factory_->CreateVideoDecoder(format);
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const auto& it =
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format.parameters.find(cricket::kCodecParamAssociatedCodecName);
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if (it == format.parameters.end()) {
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RTC_LOG(LS_ERROR) << "No assicated codec for multiplex.";
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return nullptr;
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}
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SdpVideoFormat associated_format = format;
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associated_format.name = it->second;
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return std::unique_ptr<VideoDecoder>(new MultiplexDecoderAdapter(
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factory_.get(), associated_format, supports_augmenting_data_));
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}
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} // namespace webrtc
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