audio_decoder_opus.h (1706B)
1 /* 2 * Copyright (c) 2017 The WebRTC project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #ifndef API_AUDIO_CODECS_OPUS_AUDIO_DECODER_OPUS_H_ 12 #define API_AUDIO_CODECS_OPUS_AUDIO_DECODER_OPUS_H_ 13 14 #include <memory> 15 #include <optional> 16 #include <vector> 17 18 #include "api/audio_codecs/audio_codec_pair_id.h" 19 #include "api/audio_codecs/audio_decoder.h" 20 #include "api/audio_codecs/audio_format.h" 21 #include "api/environment/environment.h" 22 #include "rtc_base/system/rtc_export.h" 23 24 namespace webrtc { 25 26 // Opus decoder API for use as a template parameter to 27 // CreateAudioDecoderFactory<...>(). 28 struct RTC_EXPORT AudioDecoderOpus { 29 struct Config { 30 bool IsOk() const; // Checks if the values are currently OK. 31 int sample_rate_hz = 48000; 32 std::optional<int> num_channels; 33 }; 34 static std::optional<Config> SdpToConfig(const SdpAudioFormat& audio_format); 35 static void AppendSupportedDecoders(std::vector<AudioCodecSpec>* specs); 36 37 static std::unique_ptr<AudioDecoder> MakeAudioDecoder(const Environment& env, 38 Config config); 39 static std::unique_ptr<AudioDecoder> MakeAudioDecoder( 40 const Environment& env, 41 Config config, 42 std::optional<AudioCodecPairId> /*codec_pair_id*/) { 43 return MakeAudioDecoder(env, config); 44 } 45 }; 46 47 } // namespace webrtc 48 49 #endif // API_AUDIO_CODECS_OPUS_AUDIO_DECODER_OPUS_H_