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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/net/rtp_sender/rtp_packetizer/rtp_packetizer.h" | 5 #include "media/cast/transport/rtp_sender/rtp_packetizer/rtp_packetizer.h" |
6 | 6 |
7 #include "base/logging.h" | 7 #include "base/logging.h" |
8 #include "media/cast/cast_defines.h" | 8 #include "media/cast/cast_defines.h" |
9 #include "media/cast/net/pacing/paced_sender.h" | 9 #include "media/cast/transport/pacing/paced_sender.h" |
10 #include "net/base/big_endian.h" | 10 #include "net/base/big_endian.h" |
11 | 11 |
12 namespace media { | 12 namespace media { |
13 namespace cast { | 13 namespace cast { |
| 14 namespace transport { |
14 | 15 |
15 static const uint16 kCommonRtpHeaderLength = 12; | 16 static const uint16 kCommonRtpHeaderLength = 12; |
16 static const uint16 kCastRtpHeaderLength = 7; | 17 static const uint16 kCastRtpHeaderLength = 7; |
17 static const uint8 kCastKeyFrameBitMask = 0x80; | 18 static const uint8 kCastKeyFrameBitMask = 0x80; |
18 static const uint8 kCastReferenceFrameIdBitMask = 0x40; | 19 static const uint8 kCastReferenceFrameIdBitMask = 0x40; |
| 20 static const uint8 kRtpMarkerBitMask = 0x80; |
| 21 |
| 22 |
| 23 RtpPacketizerConfig::RtpPacketizerConfig() |
| 24 : audio(false), |
| 25 payload_type(-1), |
| 26 max_payload_length(kIpPacketSize - 28), // Default is IP-v4/UDP. |
| 27 sequence_number(0), |
| 28 rtp_timestamp(0), |
| 29 frequency(8000), |
| 30 ssrc(0), |
| 31 channels(0) {} |
| 32 |
| 33 RtpPacketizerConfig::~RtpPacketizerConfig() {} |
19 | 34 |
20 RtpPacketizer::RtpPacketizer(PacedPacketSender* transport, | 35 RtpPacketizer::RtpPacketizer(PacedPacketSender* transport, |
21 PacketStorage* packet_storage, | 36 PacketStorage* packet_storage, |
22 RtpPacketizerConfig rtp_packetizer_config) | 37 RtpPacketizerConfig rtp_packetizer_config) |
23 : config_(rtp_packetizer_config), | 38 : config_(rtp_packetizer_config), |
24 transport_(transport), | 39 transport_(transport), |
25 packet_storage_(packet_storage), | 40 packet_storage_(packet_storage), |
26 sequence_number_(config_.sequence_number), | 41 sequence_number_(config_.sequence_number), |
27 rtp_timestamp_(config_.rtp_timestamp), | 42 rtp_timestamp_(config_.rtp_timestamp), |
28 packet_id_(0), | 43 packet_id_(0), |
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142 (marker_bit ? kRtpMarkerBitMask : 0)); | 157 (marker_bit ? kRtpMarkerBitMask : 0)); |
143 size_t start_size = packet->size(); | 158 size_t start_size = packet->size(); |
144 packet->resize(start_size + 10); | 159 packet->resize(start_size + 10); |
145 net::BigEndianWriter big_endian_writer(&((*packet)[start_size]), 10); | 160 net::BigEndianWriter big_endian_writer(&((*packet)[start_size]), 10); |
146 big_endian_writer.WriteU16(sequence_number_); | 161 big_endian_writer.WriteU16(sequence_number_); |
147 big_endian_writer.WriteU32(time_stamp); | 162 big_endian_writer.WriteU32(time_stamp); |
148 big_endian_writer.WriteU32(config_.ssrc); | 163 big_endian_writer.WriteU32(config_.ssrc); |
149 ++sequence_number_; | 164 ++sequence_number_; |
150 } | 165 } |
151 | 166 |
| 167 } // namespace transport |
152 } // namespace cast | 168 } // namespace cast |
153 } // namespace media | 169 } // namespace media |
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