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kwiberge985b902017-07-31 18:34:571/*
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
Mirko Bonadei92ea95e2017-09-15 04:47:3111#ifndef API_AUDIO_CODECS_G711_AUDIO_DECODER_G711_H_
12#define API_AUDIO_CODECS_G711_AUDIO_DECODER_G711_H_
kwiberge985b902017-07-31 18:34:5713
14#include <memory>
15#include <vector>
16
Danil Chapovalov0bc58cf2018-06-21 11:32:5617#include "absl/types/optional.h"
Karl Wiberg17668ec2018-03-01 14:13:2718#include "api/audio_codecs/audio_codec_pair_id.h"
Mirko Bonadei92ea95e2017-09-15 04:47:3119#include "api/audio_codecs/audio_decoder.h"
20#include "api/audio_codecs/audio_format.h"
kwiberge985b902017-07-31 18:34:5721
22namespace webrtc {
23
24// G711 decoder API for use as a template parameter to
25// CreateAudioDecoderFactory<...>().
26//
27// NOTE: This struct is still under development and may change without notice.
28struct AudioDecoderG711 {
29 struct Config {
30 enum class Type { kPcmU, kPcmA };
31 bool IsOk() const {
32 return (type == Type::kPcmU || type == Type::kPcmA) && num_channels >= 1;
33 }
34 Type type;
35 int num_channels;
36 };
Danil Chapovalov0bc58cf2018-06-21 11:32:5637 static absl::optional<Config> SdpToConfig(const SdpAudioFormat& audio_format);
kwiberge985b902017-07-31 18:34:5738 static void AppendSupportedDecoders(std::vector<AudioCodecSpec>* specs);
Karl Wiberg17668ec2018-03-01 14:13:2739 static std::unique_ptr<AudioDecoder> MakeAudioDecoder(
40 const Config& config,
Danil Chapovalov0bc58cf2018-06-21 11:32:5641 absl::optional<AudioCodecPairId> codec_pair_id = absl::nullopt);
kwiberge985b902017-07-31 18:34:5742};
43
44} // namespace webrtc
45
Mirko Bonadei92ea95e2017-09-15 04:47:3146#endif // API_AUDIO_CODECS_G711_AUDIO_DECODER_G711_H_