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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/transport/rtp_sender/rtp_sender.h" | 5 #include "media/cast/transport/rtp_sender/rtp_sender.h" |
6 | 6 |
7 #include "base/logging.h" | 7 #include "base/logging.h" |
8 #include "base/rand_util.h" | 8 #include "base/rand_util.h" |
9 #include "media/cast/transport/cast_transport_defines.h" | 9 #include "media/cast/transport/cast_transport_defines.h" |
10 #include "media/cast/transport/pacing/paced_sender.h" | 10 #include "media/cast/transport/pacing/paced_sender.h" |
11 #include "net/base/big_endian.h" | 11 #include "net/base/big_endian.h" |
12 | 12 |
13 namespace media { | 13 namespace media { |
14 namespace cast { | 14 namespace cast { |
15 namespace transport { | 15 namespace transport { |
16 | 16 |
17 // Schedule the RTP statistics callback every 100mS. | 17 // Schedule the RTP statistics callback every 33mS. |
pwestin
2014/02/12 21:16:43
explain why 33
mikhal1
2014/02/12 23:21:05
Done.
| |
18 static const int kStatsCallbackIntervalMs = 100; | 18 static const int kStatsCallbackIntervalMs = 33; |
19 | 19 |
20 RtpSender::RtpSender( | 20 RtpSender::RtpSender( |
21 base::TickClock* clock, | 21 base::TickClock* clock, |
22 const CastTransportConfig& config, | 22 const CastTransportConfig& config, |
23 bool is_audio, | 23 bool is_audio, |
24 const scoped_refptr<base::TaskRunner>& transport_task_runner, | 24 const scoped_refptr<base::TaskRunner>& transport_task_runner, |
25 PacedSender* const transport) | 25 PacedSender* const transport) |
26 : clock_(clock), | 26 : config_(), |
27 config_(), | |
28 transport_(transport), | 27 transport_(transport), |
29 stats_callback_(), | 28 stats_callback_(), |
30 transport_task_runner_(transport_task_runner) { | 29 transport_task_runner_(transport_task_runner) { |
31 // Store generic cast config and create packetizer config. | 30 // Store generic cast config and create packetizer config. |
32 if (is_audio) { | 31 if (is_audio) { |
33 storage_.reset( | 32 storage_.reset( |
34 new PacketStorage(clock, config.audio_rtp_config.history_ms)); | 33 new PacketStorage(clock, config.audio_rtp_config.history_ms)); |
35 config_.audio = true; | 34 config_.audio = true; |
36 config_.ssrc = config.audio_ssrc; | 35 config_.ssrc = config.audio_ssrc; |
37 config_.payload_type = config.audio_rtp_config.payload_type; | 36 config_.payload_type = config.audio_rtp_config.payload_type; |
38 config_.frequency = config.audio_frequency; | 37 config_.frequency = config.audio_frequency; |
39 config_.audio_codec = config.audio_codec; | 38 config_.audio_codec = config.audio_codec; |
40 } else { | 39 } else { |
41 storage_.reset( | 40 storage_.reset( |
42 new PacketStorage(clock, config.audio_rtp_config.history_ms)); | 41 new PacketStorage(clock, config.audio_rtp_config.history_ms)); |
43 config_.audio = false; | 42 config_.audio = false; |
44 config_.ssrc = config.video_ssrc; | 43 config_.ssrc = config.video_ssrc; |
45 config_.payload_type = config.video_rtp_config.payload_type; | 44 config_.payload_type = config.video_rtp_config.payload_type; |
46 config_.frequency = kVideoFrequency; | 45 config_.frequency = kVideoFrequency; |
47 config_.video_codec = config.video_codec; | 46 config_.video_codec = config.video_codec; |
48 } | 47 } |
49 // Randomly set start values. | 48 // Randomly set start values. |
50 config_.sequence_number = base::RandInt(0, 65535); | 49 config_.sequence_number = base::RandInt(0, 65535); |
51 packetizer_.reset(new RtpPacketizer(transport, storage_.get(), config_)); | 50 packetizer_.reset( |
51 new RtpPacketizer(transport, storage_.get(), config_)); | |
52 } | 52 } |
53 | 53 |
54 RtpSender::~RtpSender() {} | 54 RtpSender::~RtpSender() {} |
55 | 55 |
56 void RtpSender::IncomingEncodedVideoFrame(const EncodedVideoFrame* video_frame, | 56 void RtpSender::IncomingEncodedVideoFrame(const EncodedVideoFrame* video_frame, |
57 const base::TimeTicks& capture_time) { | 57 const base::TimeTicks& capture_time) { |
58 packetizer_->IncomingEncodedVideoFrame(video_frame, capture_time); | 58 packetizer_->IncomingEncodedVideoFrame(video_frame, capture_time); |
59 } | 59 } |
60 | 60 |
61 void RtpSender::IncomingEncodedAudioFrame( | 61 void RtpSender::IncomingEncodedAudioFrame( |
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131 | 131 |
132 void RtpSender::ScheduleNextStatsReport() { | 132 void RtpSender::ScheduleNextStatsReport() { |
133 transport_task_runner_->PostDelayedTask( | 133 transport_task_runner_->PostDelayedTask( |
134 FROM_HERE, | 134 FROM_HERE, |
135 base::Bind(&RtpSender::RtpStatistics, base::Unretained(this)), | 135 base::Bind(&RtpSender::RtpStatistics, base::Unretained(this)), |
136 base::TimeDelta::FromMilliseconds(kStatsCallbackIntervalMs)); | 136 base::TimeDelta::FromMilliseconds(kStatsCallbackIntervalMs)); |
137 } | 137 } |
138 | 138 |
139 void RtpSender::RtpStatistics() { | 139 void RtpSender::RtpStatistics() { |
140 RtcpSenderInfo sender_info; | 140 RtcpSenderInfo sender_info; |
141 uint32 ntp_seconds = 0; | |
142 uint32 ntp_fraction = 0; | |
143 ConvertTimeTicksToNtp(clock_->NowTicks(), &ntp_seconds, &ntp_fraction); | |
144 sender_info.ntp_seconds = ntp_seconds; | |
145 sender_info.ntp_fraction = ntp_fraction; | |
146 | |
147 base::TimeTicks time_sent; | 141 base::TimeTicks time_sent; |
148 uint32 rtp_timestamp = 0; | 142 uint32 rtp_timestamp = 0; |
149 packetizer_->LastSentTimestamp(&time_sent, &rtp_timestamp); | 143 packetizer_->LastSentTimestamp(&time_sent, &rtp_timestamp); |
150 sender_info.send_packet_count = packetizer_->send_packets_count(); | 144 sender_info.send_packet_count = packetizer_->send_packets_count(); |
151 sender_info.send_octet_count = packetizer_->send_octet_count(); | 145 sender_info.send_octet_count = packetizer_->send_octet_count(); |
152 stats_callback_.Run(sender_info, time_sent, rtp_timestamp); | 146 stats_callback_.Run(sender_info, time_sent, rtp_timestamp); |
153 ScheduleNextStatsReport(); | 147 ScheduleNextStatsReport(); |
154 } | 148 } |
155 | 149 |
156 } // namespace transport | 150 } // namespace transport |
157 } // namespace cast | 151 } // namespace cast |
158 } // namespace media | 152 } // namespace media |
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