OLD | NEW |
1 /* | 1 /* |
2 * Copyright (c) 2014 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2014 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 |
(...skipping 389 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
400 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | 400 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
401 // : report blocks : | 401 // : report blocks : |
402 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | 402 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
403 | 403 |
404 void CreateXrHeader(const RTCPPacketXR& header, | 404 void CreateXrHeader(const RTCPPacketXR& header, |
405 uint8_t* buffer, | 405 uint8_t* buffer, |
406 size_t* pos) { | 406 size_t* pos) { |
407 AssignUWord32(buffer, pos, header.OriginatorSSRC); | 407 AssignUWord32(buffer, pos, header.OriginatorSSRC); |
408 } | 408 } |
409 | 409 |
410 void CreateXrBlockHeader(uint8_t block_type, | |
411 uint16_t block_length, | |
412 uint8_t* buffer, | |
413 size_t* pos) { | |
414 AssignUWord8(buffer, pos, block_type); | |
415 AssignUWord8(buffer, pos, 0); | |
416 AssignUWord16(buffer, pos, block_length); | |
417 } | |
418 | |
419 // DLRR Report Block (RFC 3611). | |
420 // | |
421 // 0 1 2 3 | |
422 // 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 | |
423 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
424 // | BT=5 | reserved | block length | | |
425 // +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+ | |
426 // | SSRC_1 (SSRC of first receiver) | sub- | |
427 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ block | |
428 // | last RR (LRR) | 1 | |
429 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
430 // | delay since last RR (DLRR) | | |
431 // +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+ | |
432 // | SSRC_2 (SSRC of second receiver) | sub- | |
433 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ block | |
434 // : ... : 2 | |
435 | |
436 void CreateDlrr(const std::vector<Xr::DlrrBlock>& dlrrs, | |
437 uint8_t* buffer, | |
438 size_t* pos) { | |
439 for (std::vector<Xr::DlrrBlock>::const_iterator it = dlrrs.begin(); | |
440 it != dlrrs.end(); ++it) { | |
441 if ((*it).empty()) { | |
442 continue; | |
443 } | |
444 uint16_t block_length = 3 * (*it).size(); | |
445 CreateXrBlockHeader(kBtDlrr, block_length, buffer, pos); | |
446 for (Xr::DlrrBlock::const_iterator it_block = (*it).begin(); | |
447 it_block != (*it).end(); ++it_block) { | |
448 AssignUWord32(buffer, pos, (*it_block).SSRC); | |
449 AssignUWord32(buffer, pos, (*it_block).LastRR); | |
450 AssignUWord32(buffer, pos, (*it_block).DelayLastRR); | |
451 } | |
452 } | |
453 } | |
454 } // namespace | 410 } // namespace |
455 | 411 |
456 void RtcpPacket::Append(RtcpPacket* packet) { | 412 void RtcpPacket::Append(RtcpPacket* packet) { |
457 assert(packet); | 413 assert(packet); |
458 appended_packets_.push_back(packet); | 414 appended_packets_.push_back(packet); |
459 } | 415 } |
460 | 416 |
461 rtc::scoped_ptr<RawPacket> RtcpPacket::Build() const { | 417 rtc::scoped_ptr<RawPacket> RtcpPacket::Build() const { |
462 size_t length = 0; | 418 size_t length = 0; |
463 rtc::scoped_ptr<RawPacket> packet(new RawPacket(IP_PACKET_SIZE)); | 419 rtc::scoped_ptr<RawPacket> packet(new RawPacket(IP_PACKET_SIZE)); |
(...skipping 363 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
827 while (*index + BlockLength() > max_length) { | 783 while (*index + BlockLength() > max_length) { |
828 if (!OnBufferFull(packet, index, callback)) | 784 if (!OnBufferFull(packet, index, callback)) |
829 return false; | 785 return false; |
830 } | 786 } |
831 CreateHeader(0U, PT_XR, HeaderLength(), packet, index); | 787 CreateHeader(0U, PT_XR, HeaderLength(), packet, index); |
832 CreateXrHeader(xr_header_, packet, index); | 788 CreateXrHeader(xr_header_, packet, index); |
833 for (const Rrtr& block : rrtr_blocks_) { | 789 for (const Rrtr& block : rrtr_blocks_) { |
834 block.Create(packet + *index); | 790 block.Create(packet + *index); |
835 *index += Rrtr::kLength; | 791 *index += Rrtr::kLength; |
836 } | 792 } |
837 CreateDlrr(dlrr_blocks_, packet, index); | 793 for (const Dlrr& block : dlrr_blocks_) { |
| 794 block.Create(packet + *index); |
| 795 *index += block.BlockLength(); |
| 796 } |
838 for (const VoipMetric& block : voip_metric_blocks_) { | 797 for (const VoipMetric& block : voip_metric_blocks_) { |
839 block.Create(packet + *index); | 798 block.Create(packet + *index); |
840 *index += VoipMetric::kLength; | 799 *index += VoipMetric::kLength; |
841 } | 800 } |
842 return true; | 801 return true; |
843 } | 802 } |
844 | 803 |
845 bool Xr::WithRrtr(Rrtr* rrtr) { | 804 bool Xr::WithRrtr(Rrtr* rrtr) { |
846 RTC_DCHECK(rrtr); | 805 RTC_DCHECK(rrtr); |
847 if (rrtr_blocks_.size() >= kMaxNumberOfRrtrBlocks) { | 806 if (rrtr_blocks_.size() >= kMaxNumberOfRrtrBlocks) { |
848 LOG(LS_WARNING) << "Max RRTR blocks reached."; | 807 LOG(LS_WARNING) << "Max RRTR blocks reached."; |
849 return false; | 808 return false; |
850 } | 809 } |
851 rrtr_blocks_.push_back(*rrtr); | 810 rrtr_blocks_.push_back(*rrtr); |
852 return true; | 811 return true; |
853 } | 812 } |
854 | 813 |
855 bool Xr::WithDlrr(Dlrr* dlrr) { | 814 bool Xr::WithDlrr(Dlrr* dlrr) { |
856 assert(dlrr); | 815 RTC_DCHECK(dlrr); |
857 if (dlrr_blocks_.size() >= kMaxNumberOfDlrrBlocks) { | 816 if (dlrr_blocks_.size() >= kMaxNumberOfDlrrBlocks) { |
858 LOG(LS_WARNING) << "Max DLRR blocks reached."; | 817 LOG(LS_WARNING) << "Max DLRR blocks reached."; |
859 return false; | 818 return false; |
860 } | 819 } |
861 dlrr_blocks_.push_back(dlrr->dlrr_block_); | 820 dlrr_blocks_.push_back(*dlrr); |
862 return true; | 821 return true; |
863 } | 822 } |
864 | 823 |
865 bool Xr::WithVoipMetric(VoipMetric* voip_metric) { | 824 bool Xr::WithVoipMetric(VoipMetric* voip_metric) { |
866 assert(voip_metric); | 825 assert(voip_metric); |
867 if (voip_metric_blocks_.size() >= kMaxNumberOfVoipMetricBlocks) { | 826 if (voip_metric_blocks_.size() >= kMaxNumberOfVoipMetricBlocks) { |
868 LOG(LS_WARNING) << "Max Voip Metric blocks reached."; | 827 LOG(LS_WARNING) << "Max Voip Metric blocks reached."; |
869 return false; | 828 return false; |
870 } | 829 } |
871 voip_metric_blocks_.push_back(*voip_metric); | 830 voip_metric_blocks_.push_back(*voip_metric); |
872 return true; | 831 return true; |
873 } | 832 } |
874 | 833 |
875 size_t Xr::DlrrLength() const { | 834 size_t Xr::DlrrLength() const { |
876 const size_t kBlockHeaderLen = 4; | |
877 const size_t kSubBlockLen = 12; | |
878 size_t length = 0; | 835 size_t length = 0; |
879 for (std::vector<DlrrBlock>::const_iterator it = dlrr_blocks_.begin(); | 836 for (const Dlrr& block : dlrr_blocks_) { |
880 it != dlrr_blocks_.end(); ++it) { | 837 length += block.BlockLength(); |
881 if (!(*it).empty()) { | |
882 length += kBlockHeaderLen + kSubBlockLen * (*it).size(); | |
883 } | |
884 } | 838 } |
885 return length; | 839 return length; |
886 } | 840 } |
887 | 841 |
888 bool Dlrr::WithDlrrItem(uint32_t ssrc, | |
889 uint32_t last_rr, | |
890 uint32_t delay_last_rr) { | |
891 if (dlrr_block_.size() >= kMaxNumberOfDlrrItems) { | |
892 LOG(LS_WARNING) << "Max DLRR items reached."; | |
893 return false; | |
894 } | |
895 RTCPPacketXRDLRRReportBlockItem dlrr; | |
896 dlrr.SSRC = ssrc; | |
897 dlrr.LastRR = last_rr; | |
898 dlrr.DelayLastRR = delay_last_rr; | |
899 dlrr_block_.push_back(dlrr); | |
900 return true; | |
901 } | |
902 | |
903 RawPacket::RawPacket(size_t buffer_length) | 842 RawPacket::RawPacket(size_t buffer_length) |
904 : buffer_length_(buffer_length), length_(0) { | 843 : buffer_length_(buffer_length), length_(0) { |
905 buffer_.reset(new uint8_t[buffer_length]); | 844 buffer_.reset(new uint8_t[buffer_length]); |
906 } | 845 } |
907 | 846 |
908 RawPacket::RawPacket(const uint8_t* packet, size_t packet_length) | 847 RawPacket::RawPacket(const uint8_t* packet, size_t packet_length) |
909 : buffer_length_(packet_length), length_(packet_length) { | 848 : buffer_length_(packet_length), length_(packet_length) { |
910 buffer_.reset(new uint8_t[packet_length]); | 849 buffer_.reset(new uint8_t[packet_length]); |
911 memcpy(buffer_.get(), packet, packet_length); | 850 memcpy(buffer_.get(), packet, packet_length); |
912 } | 851 } |
(...skipping 14 matching lines...) Expand all Loading... |
927 return length_; | 866 return length_; |
928 } | 867 } |
929 | 868 |
930 void RawPacket::SetLength(size_t length) { | 869 void RawPacket::SetLength(size_t length) { |
931 assert(length <= buffer_length_); | 870 assert(length <= buffer_length_); |
932 length_ = length; | 871 length_ = length; |
933 } | 872 } |
934 | 873 |
935 } // namespace rtcp | 874 } // namespace rtcp |
936 } // namespace webrtc | 875 } // namespace webrtc |
OLD | NEW |