| /* |
| * Copyright (c) 2014 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 WEBRTC_MODULES_AUDIO_CODING_CODECS_OPUS_INTERFACE_AUDIO_ENCODER_OPUS_H_ |
| #define WEBRTC_MODULES_AUDIO_CODING_CODECS_OPUS_INTERFACE_AUDIO_ENCODER_OPUS_H_ |
| |
| #include <vector> |
| |
| #include "webrtc/modules/audio_coding/codecs/opus/interface/opus_interface.h" |
| #include "webrtc/modules/audio_coding/codecs/audio_encoder.h" |
| |
| namespace webrtc { |
| |
| // NOTE: This class has neither ThreadChecker, nor locks. The owner of an |
| // AudioEncoderOpus object must ensure that it is not accessed concurrently. |
| |
| class AudioEncoderOpus final : public AudioEncoder { |
| public: |
| enum ApplicationMode { |
| kVoip = 0, |
| kAudio = 1, |
| }; |
| |
| struct Config { |
| Config(); |
| bool IsOk() const; |
| int frame_size_ms; |
| int num_channels; |
| int payload_type; |
| ApplicationMode application; |
| int bitrate_bps; |
| bool fec_enabled; |
| int max_playback_rate_hz; |
| }; |
| |
| explicit AudioEncoderOpus(const Config& config); |
| virtual ~AudioEncoderOpus() OVERRIDE; |
| |
| virtual int sample_rate_hz() const OVERRIDE; |
| virtual int num_channels() const OVERRIDE; |
| virtual int Num10MsFramesInNextPacket() const OVERRIDE; |
| virtual int Max10MsFramesInAPacket() const OVERRIDE; |
| void SetTargetBitrate(int bits_per_second) override; |
| void SetProjectedPacketLossRate(double fraction) override; |
| |
| protected: |
| virtual bool EncodeInternal(uint32_t rtp_timestamp, |
| const int16_t* audio, |
| size_t max_encoded_bytes, |
| uint8_t* encoded, |
| EncodedInfo* info) OVERRIDE; |
| |
| private: |
| const int num_10ms_frames_per_packet_; |
| const int num_channels_; |
| const int payload_type_; |
| const ApplicationMode application_; |
| const int samples_per_10ms_frame_; |
| std::vector<int16_t> input_buffer_; |
| OpusEncInst* inst_; |
| uint32_t first_timestamp_in_buffer_; |
| double packet_loss_rate_; |
| }; |
| |
| } // namespace webrtc |
| #endif // WEBRTC_MODULES_AUDIO_CODING_CODECS_OPUS_INTERFACE_AUDIO_ENCODER_OPUS_H_ |