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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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/sender/audio_sender.h" | 5 #include "media/cast/sender/audio_sender.h" |
6 | 6 |
7 #include <utility> | 7 #include <utility> |
8 | 8 |
9 #include "base/bind.h" | 9 #include "base/bind.h" |
10 #include "base/logging.h" | 10 #include "base/logging.h" |
11 #include "base/memory/ptr_util.h" | 11 #include "base/memory/ptr_util.h" |
12 #include "base/message_loop/message_loop.h" | 12 #include "base/message_loop/message_loop.h" |
13 #include "media/cast/common/rtp_time.h" | 13 #include "media/cast/common/rtp_time.h" |
14 #include "media/cast/net/cast_transport_config.h" | 14 #include "media/cast/net/cast_transport_config.h" |
15 #include "media/cast/sender/audio_encoder.h" | 15 #include "media/cast/sender/audio_encoder.h" |
16 | 16 |
17 namespace media { | 17 namespace media { |
18 namespace cast { | 18 namespace cast { |
19 | 19 |
20 AudioSender::AudioSender(scoped_refptr<CastEnvironment> cast_environment, | 20 AudioSender::AudioSender(scoped_refptr<CastEnvironment> cast_environment, |
21 const FrameSenderConfig& audio_config, | 21 const AudioSenderConfig& audio_config, |
22 const StatusChangeCallback& status_change_cb, | 22 const StatusChangeCallback& status_change_cb, |
23 CastTransport* const transport_sender) | 23 CastTransport* const transport_sender) |
24 : FrameSender(cast_environment, | 24 : FrameSender(cast_environment, |
25 true, | 25 true, |
26 transport_sender, | 26 transport_sender, |
27 audio_config.rtp_timebase, | 27 audio_config.frequency, |
28 audio_config.sender_ssrc, | 28 audio_config.ssrc, |
29 0, // |max_frame_rate_| is set after encoder initialization. | 29 0, // |max_frame_rate_| is set after encoder initialization. |
30 audio_config.min_playout_delay, | 30 audio_config.min_playout_delay, |
31 audio_config.max_playout_delay, | 31 audio_config.max_playout_delay, |
32 audio_config.animated_playout_delay, | 32 audio_config.animated_playout_delay, |
33 NewFixedCongestionControl(audio_config.max_bitrate)), | 33 NewFixedCongestionControl(audio_config.bitrate)), |
34 samples_in_encoder_(0), | 34 samples_in_encoder_(0), |
35 weak_factory_(this) { | 35 weak_factory_(this) { |
36 if (!audio_config.use_external_encoder) { | 36 if (!audio_config.use_external_encoder) { |
37 audio_encoder_.reset(new AudioEncoder( | 37 audio_encoder_.reset( |
38 cast_environment, audio_config.channels, audio_config.rtp_timebase, | 38 new AudioEncoder(cast_environment, |
39 audio_config.max_bitrate, audio_config.codec, | 39 audio_config.channels, |
40 base::Bind(&AudioSender::OnEncodedAudioFrame, | 40 audio_config.frequency, |
41 weak_factory_.GetWeakPtr(), audio_config.max_bitrate))); | 41 audio_config.bitrate, |
| 42 audio_config.codec, |
| 43 base::Bind(&AudioSender::OnEncodedAudioFrame, |
| 44 weak_factory_.GetWeakPtr(), |
| 45 audio_config.bitrate))); |
42 } | 46 } |
43 | 47 |
44 // AudioEncoder provides no operational status changes during normal use. | 48 // AudioEncoder provides no operational status changes during normal use. |
45 // Post a task now with its initialization result status to allow the client | 49 // Post a task now with its initialization result status to allow the client |
46 // to start sending frames. | 50 // to start sending frames. |
47 cast_environment_->PostTask( | 51 cast_environment_->PostTask( |
48 CastEnvironment::MAIN, | 52 CastEnvironment::MAIN, |
49 FROM_HERE, | 53 FROM_HERE, |
50 base::Bind(status_change_cb, | 54 base::Bind(status_change_cb, |
51 audio_encoder_ ? audio_encoder_->InitializationResult() : | 55 audio_encoder_ ? audio_encoder_->InitializationResult() : |
52 STATUS_INVALID_CONFIGURATION)); | 56 STATUS_INVALID_CONFIGURATION)); |
53 | 57 |
54 // The number of samples per encoded audio frame depends on the codec and its | 58 // The number of samples per encoded audio frame depends on the codec and its |
55 // initialization parameters. Now that we have an encoder, we can calculate | 59 // initialization parameters. Now that we have an encoder, we can calculate |
56 // the maximum frame rate. | 60 // the maximum frame rate. |
57 max_frame_rate_ = | 61 max_frame_rate_ = |
58 audio_config.rtp_timebase / audio_encoder_->GetSamplesPerFrame(); | 62 audio_config.frequency / audio_encoder_->GetSamplesPerFrame(); |
59 | 63 |
60 media::cast::CastTransportRtpConfig transport_config; | 64 media::cast::CastTransportRtpConfig transport_config; |
61 transport_config.ssrc = audio_config.sender_ssrc; | 65 transport_config.ssrc = audio_config.ssrc; |
62 transport_config.feedback_ssrc = audio_config.receiver_ssrc; | 66 transport_config.feedback_ssrc = audio_config.receiver_ssrc; |
63 transport_config.rtp_payload_type = audio_config.rtp_payload_type; | 67 transport_config.rtp_payload_type = audio_config.rtp_payload_type; |
64 transport_config.aes_key = audio_config.aes_key; | 68 transport_config.aes_key = audio_config.aes_key; |
65 transport_config.aes_iv_mask = audio_config.aes_iv_mask; | 69 transport_config.aes_iv_mask = audio_config.aes_iv_mask; |
66 | 70 |
67 transport_sender->InitializeAudio( | 71 transport_sender->InitializeAudio( |
68 transport_config, base::WrapUnique(new FrameSender::RtcpClient( | 72 transport_config, base::WrapUnique(new FrameSender::RtcpClient( |
69 weak_factory_.GetWeakPtr()))); | 73 weak_factory_.GetWeakPtr()))); |
70 } | 74 } |
71 | 75 |
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109 DCHECK(cast_environment_->CurrentlyOn(CastEnvironment::MAIN)); | 113 DCHECK(cast_environment_->CurrentlyOn(CastEnvironment::MAIN)); |
110 | 114 |
111 samples_in_encoder_ -= audio_encoder_->GetSamplesPerFrame() + samples_skipped; | 115 samples_in_encoder_ -= audio_encoder_->GetSamplesPerFrame() + samples_skipped; |
112 DCHECK_GE(samples_in_encoder_, 0); | 116 DCHECK_GE(samples_in_encoder_, 0); |
113 | 117 |
114 SendEncodedFrame(encoder_bitrate, std::move(encoded_frame)); | 118 SendEncodedFrame(encoder_bitrate, std::move(encoded_frame)); |
115 } | 119 } |
116 | 120 |
117 } // namespace cast | 121 } // namespace cast |
118 } // namespace media | 122 } // namespace media |
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