1 /* 2 * Copyright (c) 2015 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 WEBRTC_MODULES_AUDIO_CODING_CODECS_OPUS_AUDIO_DECODER_OPUS_H_ 12 #define WEBRTC_MODULES_AUDIO_CODING_CODECS_OPUS_AUDIO_DECODER_OPUS_H_ 13 14 #include "webrtc/modules/audio_coding/codecs/audio_decoder.h" 15 #include "webrtc/modules/audio_coding/codecs/opus/opus_interface.h" 16 17 namespace webrtc { 18 19 class AudioDecoderOpus final : public AudioDecoder { 20 public: 21 explicit AudioDecoderOpus(size_t num_channels); 22 ~AudioDecoderOpus() override; 23 24 void Reset() override; 25 int PacketDuration(const uint8_t* encoded, size_t encoded_len) const override; 26 int PacketDurationRedundant(const uint8_t* encoded, 27 size_t encoded_len) const override; 28 bool PacketHasFec(const uint8_t* encoded, size_t encoded_len) const override; 29 size_t Channels() const override; 30 31 protected: 32 int DecodeInternal(const uint8_t* encoded, 33 size_t encoded_len, 34 int sample_rate_hz, 35 int16_t* decoded, 36 SpeechType* speech_type) override; 37 int DecodeRedundantInternal(const uint8_t* encoded, 38 size_t encoded_len, 39 int sample_rate_hz, 40 int16_t* decoded, 41 SpeechType* speech_type) override; 42 43 private: 44 OpusDecInst* dec_state_; 45 const size_t channels_; 46 RTC_DISALLOW_COPY_AND_ASSIGN(AudioDecoderOpus); 47 }; 48 49 } // namespace webrtc 50 51 #endif // WEBRTC_MODULES_AUDIO_CODING_CODECS_OPUS_AUDIO_DECODER_OPUS_H_ 52