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_ISAC_AUDIO_DECODER_ISAC_FLOAT_H_ 12 #define API_AUDIO_CODECS_ISAC_AUDIO_DECODER_ISAC_FLOAT_H_ 13 14 #include <memory> 15 #include <vector> 16 17 #include "api/audio_codecs/audio_decoder.h" 18 #include "api/audio_codecs/audio_format.h" 19 #include "api/optional.h" 20 21 namespace webrtc { 22 23 // iSAC decoder API (floating-point implementation) for use as a template 24 // parameter to CreateAudioDecoderFactory<...>(). 25 // 26 // NOTE: This struct is still under development and may change without notice. 27 struct AudioDecoderIsacFloat { 28 struct Config { IsOkAudioDecoderIsacFloat::Config29 bool IsOk() const { 30 return sample_rate_hz == 16000 || sample_rate_hz == 32000; 31 } 32 int sample_rate_hz = 16000; 33 }; 34 static rtc::Optional<Config> SdpToConfig(const SdpAudioFormat& audio_format); 35 static void AppendSupportedDecoders(std::vector<AudioCodecSpec>* specs); 36 static std::unique_ptr<AudioDecoder> MakeAudioDecoder(Config config); 37 }; 38 39 } // namespace webrtc 40 41 #endif // API_AUDIO_CODECS_ISAC_AUDIO_DECODER_ISAC_FLOAT_H_ 42