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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 |
11 #ifndef WEBRTC_MODULES_AUDIO_CODING_CODECS_OPUS_AUDIO_ENCODER_OPUS_H_ | 11 #ifndef WEBRTC_MODULES_AUDIO_CODING_CODECS_OPUS_AUDIO_ENCODER_OPUS_H_ |
12 #define WEBRTC_MODULES_AUDIO_CODING_CODECS_OPUS_AUDIO_ENCODER_OPUS_H_ | 12 #define WEBRTC_MODULES_AUDIO_CODING_CODECS_OPUS_AUDIO_ENCODER_OPUS_H_ |
13 | 13 |
14 #include <vector> | 14 #include <vector> |
15 | 15 |
16 #include "webrtc/base/constructormagic.h" | 16 #include "webrtc/base/constructormagic.h" |
17 #include "webrtc/modules/audio_coding/codecs/opus/opus_interface.h" | 17 #include "webrtc/modules/audio_coding/codecs/opus/opus_interface.h" |
18 #include "webrtc/modules/audio_coding/codecs/audio_encoder.h" | 18 #include "webrtc/modules/audio_coding/codecs/audio_encoder.h" |
19 | 19 |
20 namespace webrtc { | 20 namespace webrtc { |
21 | 21 |
22 struct CodecInst; | 22 struct CodecInst; |
23 | 23 |
24 class AudioEncoderOpus final : public AudioEncoder { | 24 class AudioEncoderOpus final : public AudioEncoder { |
25 public: | 25 public: |
| 26 using AudioEncoder::EncodeInternal; |
| 27 |
26 enum ApplicationMode { | 28 enum ApplicationMode { |
27 kVoip = 0, | 29 kVoip = 0, |
28 kAudio = 1, | 30 kAudio = 1, |
29 }; | 31 }; |
30 | 32 |
31 struct Config { | 33 struct Config { |
32 bool IsOk() const; | 34 bool IsOk() const; |
33 int frame_size_ms = 20; | 35 int frame_size_ms = 20; |
34 size_t num_channels = 1; | 36 size_t num_channels = 1; |
35 int payload_type = 120; | 37 int payload_type = 120; |
(...skipping 18 matching lines...) Expand all Loading... |
54 explicit AudioEncoderOpus(const CodecInst& codec_inst); | 56 explicit AudioEncoderOpus(const CodecInst& codec_inst); |
55 ~AudioEncoderOpus() override; | 57 ~AudioEncoderOpus() override; |
56 | 58 |
57 size_t MaxEncodedBytes() const override; | 59 size_t MaxEncodedBytes() const override; |
58 int SampleRateHz() const override; | 60 int SampleRateHz() const override; |
59 size_t NumChannels() const override; | 61 size_t NumChannels() const override; |
60 size_t Num10MsFramesInNextPacket() const override; | 62 size_t Num10MsFramesInNextPacket() const override; |
61 size_t Max10MsFramesInAPacket() const override; | 63 size_t Max10MsFramesInAPacket() const override; |
62 int GetTargetBitrate() const override; | 64 int GetTargetBitrate() const override; |
63 | 65 |
64 EncodedInfo EncodeInternal(uint32_t rtp_timestamp, | |
65 rtc::ArrayView<const int16_t> audio, | |
66 size_t max_encoded_bytes, | |
67 uint8_t* encoded) override; | |
68 | |
69 void Reset() override; | 66 void Reset() override; |
70 bool SetFec(bool enable) override; | 67 bool SetFec(bool enable) override; |
71 | 68 |
72 // Set Opus DTX. Once enabled, Opus stops transmission, when it detects voice | 69 // Set Opus DTX. Once enabled, Opus stops transmission, when it detects voice |
73 // being inactive. During that, it still sends 2 packets (one for content, one | 70 // being inactive. During that, it still sends 2 packets (one for content, one |
74 // for signaling) about every 400 ms. | 71 // for signaling) about every 400 ms. |
75 bool SetDtx(bool enable) override; | 72 bool SetDtx(bool enable) override; |
76 | 73 |
77 bool SetApplication(Application application) override; | 74 bool SetApplication(Application application) override; |
78 void SetMaxPlaybackRate(int frequency_hz) override; | 75 void SetMaxPlaybackRate(int frequency_hz) override; |
79 void SetProjectedPacketLossRate(double fraction) override; | 76 void SetProjectedPacketLossRate(double fraction) override; |
80 void SetTargetBitrate(int target_bps) override; | 77 void SetTargetBitrate(int target_bps) override; |
81 | 78 |
82 // Getters for testing. | 79 // Getters for testing. |
83 double packet_loss_rate() const { return packet_loss_rate_; } | 80 double packet_loss_rate() const { return packet_loss_rate_; } |
84 ApplicationMode application() const { return config_.application; } | 81 ApplicationMode application() const { return config_.application; } |
85 bool dtx_enabled() const { return config_.dtx_enabled; } | 82 bool dtx_enabled() const { return config_.dtx_enabled; } |
86 | 83 |
| 84 protected: |
| 85 EncodedInfo EncodeInternal(uint32_t rtp_timestamp, |
| 86 rtc::ArrayView<const int16_t> audio, |
| 87 rtc::Buffer* encoded) override; |
| 88 |
87 private: | 89 private: |
88 size_t Num10msFramesPerPacket() const; | 90 size_t Num10msFramesPerPacket() const; |
89 size_t SamplesPer10msFrame() const; | 91 size_t SamplesPer10msFrame() const; |
90 bool RecreateEncoderInstance(const Config& config); | 92 bool RecreateEncoderInstance(const Config& config); |
91 | 93 |
92 Config config_; | 94 Config config_; |
93 double packet_loss_rate_; | 95 double packet_loss_rate_; |
94 std::vector<int16_t> input_buffer_; | 96 std::vector<int16_t> input_buffer_; |
95 OpusEncInst* inst_; | 97 OpusEncInst* inst_; |
96 uint32_t first_timestamp_in_buffer_; | 98 uint32_t first_timestamp_in_buffer_; |
97 RTC_DISALLOW_COPY_AND_ASSIGN(AudioEncoderOpus); | 99 RTC_DISALLOW_COPY_AND_ASSIGN(AudioEncoderOpus); |
98 }; | 100 }; |
99 | 101 |
100 } // namespace webrtc | 102 } // namespace webrtc |
101 | 103 |
102 #endif // WEBRTC_MODULES_AUDIO_CODING_CODECS_OPUS_AUDIO_ENCODER_OPUS_H_ | 104 #endif // WEBRTC_MODULES_AUDIO_CODING_CODECS_OPUS_AUDIO_ENCODER_OPUS_H_ |
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