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 "absl/types/optional.h"
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 "rtc_base/system/rtc_export.h"
22 
23 namespace webrtc {
24 
25 // iSAC decoder API (floating-point implementation) for use as a template
26 // parameter to CreateAudioDecoderFactory<...>().
27 struct RTC_EXPORT 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 absl::optional<Config> SdpToConfig(const SdpAudioFormat& audio_format);
35   static void AppendSupportedDecoders(std::vector<AudioCodecSpec>* specs);
36   static std::unique_ptr<AudioDecoder> MakeAudioDecoder(
37       Config config,
38       absl::optional<AudioCodecPairId> codec_pair_id = absl::nullopt);
39 };
40 
41 }  // namespace webrtc
42 
43 #endif  // API_AUDIO_CODECS_ISAC_AUDIO_DECODER_ISAC_FLOAT_H_
44