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1 /* | 1 /* |
2 * Copyright (c) 2014 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2014 The WebRTC project authors. All Rights Reserved. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license | 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 | 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 | 6 * tree. An additional intellectual property rights grant can be found |
7 * in the file PATENTS. All contributing project authors may | 7 * in the file PATENTS. All contributing project authors may |
8 * be found in the AUTHORS file in the root of the source tree. | 8 * be found in the AUTHORS file in the root of the source tree. |
9 */ | 9 */ |
10 | 10 |
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83 bool SetFec(bool enable) override; | 83 bool SetFec(bool enable) override; |
84 | 84 |
85 // Set Opus DTX. Once enabled, Opus stops transmission, when it detects voice | 85 // Set Opus DTX. Once enabled, Opus stops transmission, when it detects voice |
86 // being inactive. During that, it still sends 2 packets (one for content, one | 86 // being inactive. During that, it still sends 2 packets (one for content, one |
87 // for signaling) about every 400 ms. | 87 // for signaling) about every 400 ms. |
88 bool SetDtx(bool enable) override; | 88 bool SetDtx(bool enable) override; |
89 bool GetDtx() const override; | 89 bool GetDtx() const override; |
90 | 90 |
91 bool SetApplication(Application application) override; | 91 bool SetApplication(Application application) override; |
92 void SetMaxPlaybackRate(int frequency_hz) override; | 92 void SetMaxPlaybackRate(int frequency_hz) override; |
93 void SetProjectedPacketLossRate(double fraction) override; | |
94 void SetTargetBitrate(int target_bps) override; | |
95 | |
96 bool EnableAudioNetworkAdaptor(const std::string& config_string, | 93 bool EnableAudioNetworkAdaptor(const std::string& config_string, |
97 const Clock* clock) override; | 94 const Clock* clock) override; |
98 void DisableAudioNetworkAdaptor() override; | 95 void DisableAudioNetworkAdaptor() override; |
99 void OnReceivedUplinkBandwidth(int uplink_bandwidth_bps) override; | 96 void OnReceivedUplinkBandwidth(int uplink_bandwidth_bps) override; |
100 void OnReceivedUplinkPacketLossFraction( | 97 void OnReceivedUplinkPacketLossFraction( |
101 float uplink_packet_loss_fraction) override; | 98 float uplink_packet_loss_fraction) override; |
102 void OnReceivedTargetAudioBitrate(int target_audio_bitrate_bps) override; | 99 void OnReceivedTargetAudioBitrate(int target_audio_bitrate_bps) override; |
103 void OnReceivedRtt(int rtt_ms) override; | 100 void OnReceivedRtt(int rtt_ms) override; |
104 void SetReceiverFrameLengthRange(int min_frame_length_ms, | 101 void SetReceiverFrameLengthRange(int min_frame_length_ms, |
105 int max_frame_length_ms) override; | 102 int max_frame_length_ms) override; |
106 rtc::ArrayView<const int> supported_frame_lengths_ms() const { | 103 rtc::ArrayView<const int> supported_frame_lengths_ms() const { |
107 return config_.supported_frame_lengths_ms; | 104 return config_.supported_frame_lengths_ms; |
108 } | 105 } |
109 | 106 |
110 // Getters for testing. | 107 // Getters for testing. |
111 double packet_loss_rate() const { return packet_loss_rate_; } | 108 float packet_loss_rate() const { return packet_loss_rate_; } |
112 ApplicationMode application() const { return config_.application; } | 109 ApplicationMode application() const { return config_.application; } |
113 bool fec_enabled() const { return config_.fec_enabled; } | 110 bool fec_enabled() const { return config_.fec_enabled; } |
114 size_t num_channels_to_encode() const { return num_channels_to_encode_; } | 111 size_t num_channels_to_encode() const { return num_channels_to_encode_; } |
115 int next_frame_length_ms() const { return next_frame_length_ms_; } | 112 int next_frame_length_ms() const { return next_frame_length_ms_; } |
116 | 113 |
117 protected: | 114 protected: |
118 EncodedInfo EncodeImpl(uint32_t rtp_timestamp, | 115 EncodedInfo EncodeImpl(uint32_t rtp_timestamp, |
119 rtc::ArrayView<const int16_t> audio, | 116 rtc::ArrayView<const int16_t> audio, |
120 rtc::Buffer* encoded) override; | 117 rtc::Buffer* encoded) override; |
121 | 118 |
122 private: | 119 private: |
123 class PacketLossFractionSmoother; | 120 class PacketLossFractionSmoother; |
124 | 121 |
125 size_t Num10msFramesPerPacket() const; | 122 size_t Num10msFramesPerPacket() const; |
126 size_t SamplesPer10msFrame() const; | 123 size_t SamplesPer10msFrame() const; |
127 size_t SufficientOutputBufferSize() const; | 124 size_t SufficientOutputBufferSize() const; |
128 bool RecreateEncoderInstance(const Config& config); | 125 bool RecreateEncoderInstance(const Config& config); |
129 void SetFrameLength(int frame_length_ms); | 126 void SetFrameLength(int frame_length_ms); |
130 void SetNumChannelsToEncode(size_t num_channels_to_encode); | 127 void SetNumChannelsToEncode(size_t num_channels_to_encode); |
| 128 void SetProjectedPacketLossRate(float fraction); |
| 129 void SetTargetBitrate(int target_bps); |
131 void ApplyAudioNetworkAdaptor(); | 130 void ApplyAudioNetworkAdaptor(); |
132 std::unique_ptr<AudioNetworkAdaptor> DefaultAudioNetworkAdaptorCreator( | 131 std::unique_ptr<AudioNetworkAdaptor> DefaultAudioNetworkAdaptorCreator( |
133 const std::string& config_string, | 132 const std::string& config_string, |
134 const Clock* clock) const; | 133 const Clock* clock) const; |
135 | 134 |
136 Config config_; | 135 Config config_; |
137 double packet_loss_rate_; | 136 float packet_loss_rate_; |
138 std::vector<int16_t> input_buffer_; | 137 std::vector<int16_t> input_buffer_; |
139 OpusEncInst* inst_; | 138 OpusEncInst* inst_; |
140 uint32_t first_timestamp_in_buffer_; | 139 uint32_t first_timestamp_in_buffer_; |
141 size_t num_channels_to_encode_; | 140 size_t num_channels_to_encode_; |
142 int next_frame_length_ms_; | 141 int next_frame_length_ms_; |
143 std::unique_ptr<PacketLossFractionSmoother> packet_loss_fraction_smoother_; | 142 std::unique_ptr<PacketLossFractionSmoother> packet_loss_fraction_smoother_; |
144 AudioNetworkAdaptorCreator audio_network_adaptor_creator_; | 143 AudioNetworkAdaptorCreator audio_network_adaptor_creator_; |
145 std::unique_ptr<AudioNetworkAdaptor> audio_network_adaptor_; | 144 std::unique_ptr<AudioNetworkAdaptor> audio_network_adaptor_; |
146 | 145 |
147 RTC_DISALLOW_COPY_AND_ASSIGN(AudioEncoderOpus); | 146 RTC_DISALLOW_COPY_AND_ASSIGN(AudioEncoderOpus); |
148 }; | 147 }; |
149 | 148 |
150 } // namespace webrtc | 149 } // namespace webrtc |
151 | 150 |
152 #endif // WEBRTC_MODULES_AUDIO_CODING_CODECS_OPUS_AUDIO_ENCODER_OPUS_H_ | 151 #endif // WEBRTC_MODULES_AUDIO_CODING_CODECS_OPUS_AUDIO_ENCODER_OPUS_H_ |
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