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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "media/cast/audio_sender/audio_sender.h" | 5 #include "media/cast/audio_sender/audio_sender.h" |
6 | 6 |
7 #include "base/bind.h" | 7 #include "base/bind.h" |
8 #include "base/logging.h" | 8 #include "base/logging.h" |
9 #include "base/message_loop/message_loop.h" | 9 #include "base/message_loop/message_loop.h" |
10 #include "crypto/encryptor.h" | 10 #include "crypto/encryptor.h" |
11 #include "crypto/symmetric_key.h" | 11 #include "crypto/symmetric_key.h" |
12 #include "media/cast/audio_sender/audio_encoder.h" | 12 #include "media/cast/audio_sender/audio_encoder.h" |
| 13 #include "media/cast/cast_environment.h" |
13 #include "media/cast/rtcp/rtcp.h" | 14 #include "media/cast/rtcp/rtcp.h" |
14 #include "media/cast/transport/rtp_sender/rtp_sender.h" | 15 #include "media/cast/transport/rtp_sender/rtp_sender.h" |
15 | 16 |
16 namespace media { | 17 namespace media { |
17 namespace cast { | 18 namespace cast { |
18 | 19 |
19 const int64 kMinSchedulingDelayMs = 1; | 20 const int64 kMinSchedulingDelayMs = 1; |
20 | 21 |
21 class LocalRtcpAudioSenderFeedback : public RtcpSenderFeedback { | 22 class LocalRtcpAudioSenderFeedback : public RtcpSenderFeedback { |
22 public: | 23 public: |
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50 | 51 |
51 private: | 52 private: |
52 transport::RtpSender* rtp_sender_; | 53 transport::RtpSender* rtp_sender_; |
53 }; | 54 }; |
54 | 55 |
55 AudioSender::AudioSender( | 56 AudioSender::AudioSender( |
56 scoped_refptr<CastEnvironment> cast_environment, | 57 scoped_refptr<CastEnvironment> cast_environment, |
57 const AudioSenderConfig& audio_config, | 58 const AudioSenderConfig& audio_config, |
58 transport::PacedPacketSender* const paced_packet_sender) | 59 transport::PacedPacketSender* const paced_packet_sender) |
59 : cast_environment_(cast_environment), | 60 : cast_environment_(cast_environment), |
60 rtp_sender_(cast_environment->Clock(), &audio_config, NULL, | 61 rtp_sender_(cast_environment, &audio_config, NULL, |
61 paced_packet_sender), | 62 paced_packet_sender), |
62 rtcp_feedback_(new LocalRtcpAudioSenderFeedback(this)), | 63 rtcp_feedback_(new LocalRtcpAudioSenderFeedback(this)), |
63 rtp_audio_sender_statistics_( | 64 rtp_audio_sender_statistics_( |
64 new LocalRtpSenderStatistics(&rtp_sender_)), | 65 new LocalRtpSenderStatistics(&rtp_sender_)), |
65 rtcp_(cast_environment, | 66 rtcp_(cast_environment, |
66 rtcp_feedback_.get(), | 67 rtcp_feedback_.get(), |
67 paced_packet_sender, | 68 paced_packet_sender, |
68 rtp_audio_sender_statistics_.get(), | 69 rtp_audio_sender_statistics_.get(), |
69 NULL, | 70 NULL, |
70 audio_config.rtcp_mode, | 71 audio_config.rtcp_mode, |
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111 DCHECK(cast_environment_->CurrentlyOn(CastEnvironment::MAIN)); | 112 DCHECK(cast_environment_->CurrentlyOn(CastEnvironment::MAIN)); |
112 DCHECK(audio_encoder_.get()) << "Invalid internal state"; | 113 DCHECK(audio_encoder_.get()) << "Invalid internal state"; |
113 // TODO(mikhal): Resolve calculation of the audio rtp_timestamp for logging. | 114 // TODO(mikhal): Resolve calculation of the audio rtp_timestamp for logging. |
114 // This is a tmp solution to allow the code to build. | 115 // This is a tmp solution to allow the code to build. |
115 base::TimeTicks now = cast_environment_->Clock()->NowTicks(); | 116 base::TimeTicks now = cast_environment_->Clock()->NowTicks(); |
116 cast_environment_->Logging()->InsertFrameEvent(now, kAudioFrameReceived, | 117 cast_environment_->Logging()->InsertFrameEvent(now, kAudioFrameReceived, |
117 GetVideoRtpTimestamp(recorded_time), kFrameIdUnknown); | 118 GetVideoRtpTimestamp(recorded_time), kFrameIdUnknown); |
118 audio_encoder_->InsertAudio(audio_bus, recorded_time, done_callback); | 119 audio_encoder_->InsertAudio(audio_bus, recorded_time, done_callback); |
119 } | 120 } |
120 | 121 |
121 void AudioSender::InsertCodedAudioFrame( | 122 void AudioSender::InsertCodedAudioFrame(const EncodedAudioFrame* audio_frame, |
122 const transport::EncodedAudioFrame* audio_frame, | 123 const base::TimeTicks& recorded_time, |
123 const base::TimeTicks& recorded_time, | 124 const base::Closure callback) { |
124 const base::Closure callback) { | |
125 DCHECK(cast_environment_->CurrentlyOn(CastEnvironment::MAIN)); | 125 DCHECK(cast_environment_->CurrentlyOn(CastEnvironment::MAIN)); |
126 DCHECK(audio_encoder_.get() == NULL) << "Invalid internal state"; | 126 DCHECK(audio_encoder_.get() == NULL) << "Invalid internal state"; |
127 | 127 |
128 base::TimeTicks now = cast_environment_->Clock()->NowTicks(); | 128 base::TimeTicks now = cast_environment_->Clock()->NowTicks(); |
129 cast_environment_->Logging()->InsertFrameEvent(now, kAudioFrameReceived, | 129 cast_environment_->Logging()->InsertFrameEvent(now, kAudioFrameReceived, |
130 GetVideoRtpTimestamp(recorded_time), kFrameIdUnknown); | 130 GetVideoRtpTimestamp(recorded_time), kFrameIdUnknown); |
131 | 131 |
132 if (encryptor_) { | 132 if (encryptor_) { |
133 transport::EncodedAudioFrame encrypted_frame; | 133 EncodedAudioFrame encrypted_frame; |
134 if (!EncryptAudioFrame(*audio_frame, &encrypted_frame)) { | 134 if (!EncryptAudioFrame(*audio_frame, &encrypted_frame)) { |
135 // Logging already done. | 135 // Logging already done. |
136 return; | 136 return; |
137 } | 137 } |
138 rtp_sender_.IncomingEncodedAudioFrame(&encrypted_frame, recorded_time); | 138 rtp_sender_.IncomingEncodedAudioFrame(&encrypted_frame, recorded_time); |
139 } else { | 139 } else { |
140 rtp_sender_.IncomingEncodedAudioFrame(audio_frame, recorded_time); | 140 rtp_sender_.IncomingEncodedAudioFrame(audio_frame, recorded_time); |
141 } | 141 } |
142 callback.Run(); | 142 callback.Run(); |
143 } | 143 } |
144 | 144 |
145 void AudioSender::SendEncodedAudioFrame( | 145 void AudioSender::SendEncodedAudioFrame( |
146 scoped_ptr<transport::EncodedAudioFrame> audio_frame, | 146 scoped_ptr<EncodedAudioFrame> audio_frame, |
147 const base::TimeTicks& recorded_time) { | 147 const base::TimeTicks& recorded_time) { |
148 DCHECK(cast_environment_->CurrentlyOn(CastEnvironment::MAIN)); | 148 DCHECK(cast_environment_->CurrentlyOn(CastEnvironment::MAIN)); |
149 InitializeTimers(); | 149 InitializeTimers(); |
150 if (encryptor_) { | 150 if (encryptor_) { |
151 transport::EncodedAudioFrame encrypted_frame; | 151 EncodedAudioFrame encrypted_frame; |
152 if (!EncryptAudioFrame(*audio_frame.get(), &encrypted_frame)) { | 152 if (!EncryptAudioFrame(*audio_frame.get(), &encrypted_frame)) { |
153 // Logging already done. | 153 // Logging already done. |
154 return; | 154 return; |
155 } | 155 } |
156 rtp_sender_.IncomingEncodedAudioFrame(&encrypted_frame, recorded_time); | 156 rtp_sender_.IncomingEncodedAudioFrame(&encrypted_frame, recorded_time); |
157 } else { | 157 } else { |
158 rtp_sender_.IncomingEncodedAudioFrame(audio_frame.get(), recorded_time); | 158 rtp_sender_.IncomingEncodedAudioFrame(audio_frame.get(), recorded_time); |
159 } | 159 } |
160 } | 160 } |
161 | 161 |
162 bool AudioSender::EncryptAudioFrame( | 162 bool AudioSender::EncryptAudioFrame(const EncodedAudioFrame& audio_frame, |
163 const transport::EncodedAudioFrame& audio_frame, | 163 EncodedAudioFrame* encrypted_frame) { |
164 transport::EncodedAudioFrame* encrypted_frame) { | |
165 DCHECK(encryptor_) << "Invalid state"; | 164 DCHECK(encryptor_) << "Invalid state"; |
166 | 165 |
167 if (!encryptor_->SetCounter(GetAesNonce(audio_frame.frame_id, iv_mask_))) { | 166 if (!encryptor_->SetCounter(GetAesNonce(audio_frame.frame_id, iv_mask_))) { |
168 NOTREACHED() << "Failed to set counter"; | 167 NOTREACHED() << "Failed to set counter"; |
169 return false; | 168 return false; |
170 } | 169 } |
171 if (!encryptor_->Encrypt(audio_frame.data, &encrypted_frame->data)) { | 170 if (!encryptor_->Encrypt(audio_frame.data, &encrypted_frame->data)) { |
172 NOTREACHED() << "Encrypt error"; | 171 NOTREACHED() << "Encrypt error"; |
173 return false; | 172 return false; |
174 } | 173 } |
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207 void AudioSender::SendRtcpReport() { | 206 void AudioSender::SendRtcpReport() { |
208 DCHECK(cast_environment_->CurrentlyOn(CastEnvironment::MAIN)); | 207 DCHECK(cast_environment_->CurrentlyOn(CastEnvironment::MAIN)); |
209 // We don't send audio logging messages since all captured audio frames will | 208 // We don't send audio logging messages since all captured audio frames will |
210 // be sent. | 209 // be sent. |
211 rtcp_.SendRtcpFromRtpSender(NULL); | 210 rtcp_.SendRtcpFromRtpSender(NULL); |
212 ScheduleNextRtcpReport(); | 211 ScheduleNextRtcpReport(); |
213 } | 212 } |
214 | 213 |
215 } // namespace cast | 214 } // namespace cast |
216 } // namespace media | 215 } // namespace media |
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