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/*
* Copyright (c) 2019 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/audio_codecs/opus_audio_decoder_factory.h"
#include <memory>
#include <optional>
#include <vector>
#include "api/audio_codecs/audio_codec_pair_id.h"
#include "api/audio_codecs/audio_decoder.h"
#include "api/audio_codecs/audio_decoder_factory.h"
#include "api/audio_codecs/audio_decoder_factory_template.h"
#include "api/audio_codecs/audio_format.h"
#include "api/audio_codecs/opus/audio_decoder_multi_channel_opus.h"
#include "api/audio_codecs/opus/audio_decoder_opus.h"
#include "api/scoped_refptr.h"
namespace webrtc {
namespace {
// Modify an audio decoder to not advertise support for anything.
template <typename T>
struct NotAdvertised {
using Config = typename T::Config;
static std::optional<Config> SdpToConfig(const SdpAudioFormat& audio_format) {
return T::SdpToConfig(audio_format);
}
static void AppendSupportedDecoders(std::vector<AudioCodecSpec>* specs) {
// Don't advertise support for anything.
}
static std::unique_ptr<AudioDecoder> MakeAudioDecoder(
const Config& config,
std::optional<AudioCodecPairId> codec_pair_id = std::nullopt) {
return T::MakeAudioDecoder(config, codec_pair_id);
}
};
} // namespace
rtc::scoped_refptr<AudioDecoderFactory> CreateOpusAudioDecoderFactory() {
return CreateAudioDecoderFactory<
AudioDecoderOpus, NotAdvertised<AudioDecoderMultiChannelOpus>>();
}
} // namespace webrtc