OLD | NEW |
1 /* | 1 /* |
2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2012 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 #include "webrtc/modules/rtp_rtcp/source/fec_receiver_impl.h" | 11 #include "webrtc/modules/rtp_rtcp/source/fec_receiver_impl.h" |
12 | 12 |
13 #include <assert.h> | |
14 | |
15 #include <memory> | 13 #include <memory> |
16 | 14 |
| 15 #include "webrtc/base/checks.h" |
17 #include "webrtc/base/logging.h" | 16 #include "webrtc/base/logging.h" |
18 #include "webrtc/modules/rtp_rtcp/source/byte_io.h" | 17 #include "webrtc/modules/rtp_rtcp/source/byte_io.h" |
19 #include "webrtc/modules/rtp_rtcp/source/rtp_receiver_video.h" | 18 #include "webrtc/modules/rtp_rtcp/source/rtp_receiver_video.h" |
20 | 19 |
21 // RFC 5109 | 20 // RFC 5109 |
22 namespace webrtc { | 21 namespace webrtc { |
23 | 22 |
24 FecReceiver* FecReceiver::Create(RtpData* callback) { | 23 FecReceiver* FecReceiver::Create(RtpData* callback) { |
25 return new FecReceiverImpl(callback); | 24 return new FecReceiverImpl(callback); |
26 } | 25 } |
(...skipping 55 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
82 | 81 |
83 if (payload_data_length == 0) { | 82 if (payload_data_length == 0) { |
84 LOG(LS_WARNING) << "Corrupt/truncated FEC packet."; | 83 LOG(LS_WARNING) << "Corrupt/truncated FEC packet."; |
85 return -1; | 84 return -1; |
86 } | 85 } |
87 | 86 |
88 // Add to list without RED header, aka a virtual RTP packet | 87 // Add to list without RED header, aka a virtual RTP packet |
89 // we remove the RED header | 88 // we remove the RED header |
90 | 89 |
91 std::unique_ptr<ForwardErrorCorrection::ReceivedPacket> received_packet( | 90 std::unique_ptr<ForwardErrorCorrection::ReceivedPacket> received_packet( |
92 new ForwardErrorCorrection::ReceivedPacket); | 91 new ForwardErrorCorrection::ReceivedPacket()); |
93 received_packet->pkt = new ForwardErrorCorrection::Packet; | 92 received_packet->pkt = new ForwardErrorCorrection::Packet(); |
94 | 93 |
95 // get payload type from RED header | 94 // get payload type from RED header |
96 uint8_t payload_type = | 95 uint8_t payload_type = |
97 incoming_rtp_packet[header.headerLength] & 0x7f; | 96 incoming_rtp_packet[header.headerLength] & 0x7f; |
98 | 97 |
99 received_packet->is_fec = payload_type == ulpfec_payload_type; | 98 received_packet->is_fec = payload_type == ulpfec_payload_type; |
100 received_packet->seq_num = header.sequenceNumber; | 99 received_packet->seq_num = header.sequenceNumber; |
101 | 100 |
102 uint16_t blockLength = 0; | 101 uint16_t blockLength = 0; |
103 if (incoming_rtp_packet[header.headerLength] & 0x80) { | 102 if (incoming_rtp_packet[header.headerLength] & 0x80) { |
(...skipping 48 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
152 payload_type; // set the media payload type | 151 payload_type; // set the media payload type |
153 | 152 |
154 // copy the payload data | 153 // copy the payload data |
155 memcpy( | 154 memcpy( |
156 received_packet->pkt->data + header.headerLength, | 155 received_packet->pkt->data + header.headerLength, |
157 incoming_rtp_packet + header.headerLength + REDHeaderLength, | 156 incoming_rtp_packet + header.headerLength + REDHeaderLength, |
158 blockLength); | 157 blockLength); |
159 | 158 |
160 received_packet->pkt->length = blockLength; | 159 received_packet->pkt->length = blockLength; |
161 | 160 |
162 second_received_packet.reset(new ForwardErrorCorrection::ReceivedPacket); | 161 second_received_packet.reset(new ForwardErrorCorrection::ReceivedPacket()); |
163 second_received_packet->pkt = new ForwardErrorCorrection::Packet; | 162 second_received_packet->pkt = new ForwardErrorCorrection::Packet(); |
164 | 163 |
165 second_received_packet->is_fec = true; | 164 second_received_packet->is_fec = true; |
166 second_received_packet->seq_num = header.sequenceNumber; | 165 second_received_packet->seq_num = header.sequenceNumber; |
167 ++packet_counter_.num_fec_packets; | 166 ++packet_counter_.num_fec_packets; |
168 | 167 |
169 // copy the FEC payload data | 168 // copy the FEC payload data |
170 memcpy(second_received_packet->pkt->data, | 169 memcpy(second_received_packet->pkt->data, |
171 incoming_rtp_packet + header.headerLength + | 170 incoming_rtp_packet + header.headerLength + |
172 REDHeaderLength + blockLength, | 171 REDHeaderLength + blockLength, |
173 payload_data_length - REDHeaderLength - blockLength); | 172 payload_data_length - REDHeaderLength - blockLength); |
(...skipping 50 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
224 if (!received_packet_list_.front()->is_fec) { | 223 if (!received_packet_list_.front()->is_fec) { |
225 ForwardErrorCorrection::Packet* packet = | 224 ForwardErrorCorrection::Packet* packet = |
226 received_packet_list_.front()->pkt; | 225 received_packet_list_.front()->pkt; |
227 crit_sect_.Leave(); | 226 crit_sect_.Leave(); |
228 if (!recovered_packet_callback_->OnRecoveredPacket(packet->data, | 227 if (!recovered_packet_callback_->OnRecoveredPacket(packet->data, |
229 packet->length)) { | 228 packet->length)) { |
230 return -1; | 229 return -1; |
231 } | 230 } |
232 crit_sect_.Enter(); | 231 crit_sect_.Enter(); |
233 } | 232 } |
234 if (fec_->DecodeFEC(&received_packet_list_, &recovered_packet_list_) != 0) { | 233 if (fec_->DecodeFec(&received_packet_list_, &recovered_packet_list_) != 0) { |
235 crit_sect_.Leave(); | 234 crit_sect_.Leave(); |
236 return -1; | 235 return -1; |
237 } | 236 } |
238 assert(received_packet_list_.empty()); | 237 RTC_DCHECK(received_packet_list_.empty()); |
239 } | 238 } |
240 // Send any recovered media packets to VCM. | 239 // Send any recovered media packets to VCM. |
241 ForwardErrorCorrection::RecoveredPacketList::iterator it = | 240 for(auto* recovered_packet : recovered_packet_list_) { |
242 recovered_packet_list_.begin(); | 241 if (recovered_packet->returned) { |
243 for (; it != recovered_packet_list_.end(); ++it) { | 242 // Already sent to the VCM and the jitter buffer. |
244 if ((*it)->returned) // Already sent to the VCM and the jitter buffer. | |
245 continue; | 243 continue; |
246 ForwardErrorCorrection::Packet* packet = (*it)->pkt; | 244 } |
| 245 ForwardErrorCorrection::Packet* packet = recovered_packet->pkt; |
247 ++packet_counter_.num_recovered_packets; | 246 ++packet_counter_.num_recovered_packets; |
248 crit_sect_.Leave(); | 247 crit_sect_.Leave(); |
249 if (!recovered_packet_callback_->OnRecoveredPacket(packet->data, | 248 if (!recovered_packet_callback_->OnRecoveredPacket(packet->data, |
250 packet->length)) { | 249 packet->length)) { |
251 return -1; | 250 return -1; |
252 } | 251 } |
253 crit_sect_.Enter(); | 252 crit_sect_.Enter(); |
254 (*it)->returned = true; | 253 recovered_packet->returned = true; |
255 } | 254 } |
256 crit_sect_.Leave(); | 255 crit_sect_.Leave(); |
257 return 0; | 256 return 0; |
258 } | 257 } |
259 | 258 |
260 } // namespace webrtc | 259 } // namespace webrtc |
OLD | NEW |