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 MODULES_AUDIO_CODING_CODECS_OPUS_AUDIO_DECODER_OPUS_H_ 12 #define MODULES_AUDIO_CODING_CODECS_OPUS_AUDIO_DECODER_OPUS_H_ 13 14 #include "api/audio_codecs/audio_decoder.h" 15 #include "modules/audio_coding/codecs/opus/opus_interface.h" 16 #include "rtc_base/constructormagic.h" 17 18 namespace webrtc { 19 20 class AudioDecoderOpusImpl final : public AudioDecoder { 21 public: 22 explicit AudioDecoderOpusImpl(size_t num_channels); 23 ~AudioDecoderOpusImpl() override; 24 25 std::vector<ParseResult> ParsePayload(rtc::Buffer&& payload, 26 uint32_t timestamp) override; 27 void Reset() override; 28 int PacketDuration(const uint8_t* encoded, size_t encoded_len) const override; 29 int PacketDurationRedundant(const uint8_t* encoded, 30 size_t encoded_len) const override; 31 bool PacketHasFec(const uint8_t* encoded, size_t encoded_len) const override; 32 int SampleRateHz() const override; 33 size_t Channels() const override; 34 35 protected: 36 int DecodeInternal(const uint8_t* encoded, 37 size_t encoded_len, 38 int sample_rate_hz, 39 int16_t* decoded, 40 SpeechType* speech_type) override; 41 int DecodeRedundantInternal(const uint8_t* encoded, 42 size_t encoded_len, 43 int sample_rate_hz, 44 int16_t* decoded, 45 SpeechType* speech_type) override; 46 47 private: 48 OpusDecInst* dec_state_; 49 const size_t channels_; 50 RTC_DISALLOW_COPY_AND_ASSIGN(AudioDecoderOpusImpl); 51 }; 52 53 } // namespace webrtc 54 55 #endif // MODULES_AUDIO_CODING_CODECS_OPUS_AUDIO_DECODER_OPUS_H_ 56