| /* |
| * Copyright (c) 2017 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. |
| */ |
| |
| #ifndef API_AUDIO_CODECS_G711_AUDIO_ENCODER_G711_H_ |
| #define API_AUDIO_CODECS_G711_AUDIO_ENCODER_G711_H_ |
| |
| #include <memory> |
| #include <vector> |
| |
| #include "absl/types/optional.h" |
| #include "api/audio_codecs/audio_codec_pair_id.h" |
| #include "api/audio_codecs/audio_encoder.h" |
| #include "api/audio_codecs/audio_format.h" |
| #include "rtc_base/system/rtc_export.h" |
| |
| namespace webrtc { |
| |
| // G711 encoder API for use as a template parameter to |
| // CreateAudioEncoderFactory<...>(). |
| struct RTC_EXPORT AudioEncoderG711 { |
| struct Config { |
| enum class Type { kPcmU, kPcmA }; |
| bool IsOk() const { |
| return (type == Type::kPcmU || type == Type::kPcmA) && |
| frame_size_ms > 0 && frame_size_ms % 10 == 0 && |
| num_channels >= 1 && |
| num_channels <= AudioEncoder::kMaxNumberOfChannels; |
| } |
| Type type = Type::kPcmU; |
| int num_channels = 1; |
| int frame_size_ms = 20; |
| }; |
| static absl::optional<AudioEncoderG711::Config> SdpToConfig( |
| const SdpAudioFormat& audio_format); |
| static void AppendSupportedEncoders(std::vector<AudioCodecSpec>* specs); |
| static AudioCodecInfo QueryAudioEncoder(const Config& config); |
| static std::unique_ptr<AudioEncoder> MakeAudioEncoder( |
| const Config& config, |
| int payload_type, |
| absl::optional<AudioCodecPairId> codec_pair_id = absl::nullopt); |
| }; |
| |
| } // namespace webrtc |
| |
| #endif // API_AUDIO_CODECS_G711_AUDIO_ENCODER_G711_H_ |