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92ea95e34a
In https://webrtc-review.googlesource.com/c/src/+/1560 we moved WebRTC from src/webrtc to src/ (in order to preserve an healthy git history). This CL takes care of fixing header guards, #include paths, etc... NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true TBR=tommi@webrtc.org Bug: chromium:611808 Change-Id: Iea91618212bee0af16aa3f05071eab8f93706578 Reviewed-on: https://webrtc-review.googlesource.com/1561 Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org> Reviewed-by: Henrik Kjellander <kjellander@webrtc.org> Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org> Cr-Commit-Position: refs/heads/master@{#19846}
107 lines
4.9 KiB
C++
107 lines
4.9 KiB
C++
/*
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* Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "modules/rtp_rtcp/source/rtcp_packet/voip_metric.h"
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#include "modules/rtp_rtcp/source/byte_io.h"
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#include "rtc_base/checks.h"
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namespace webrtc {
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namespace rtcp {
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// VoIP Metrics Report Block (RFC 3611).
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//
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// 0 1 2 3
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// 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
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// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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// 0 | BT=7 | reserved | block length = 8 |
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// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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// 4 | SSRC of source |
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// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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// 8 | loss rate | discard rate | burst density | gap density |
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// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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// 12 | burst duration | gap duration |
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// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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// 16 | round trip delay | end system delay |
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// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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// 20 | signal level | noise level | RERL | Gmin |
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// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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// 24 | R factor | ext. R factor | MOS-LQ | MOS-CQ |
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// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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// 28 | RX config | reserved | JB nominal |
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// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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// 32 | JB maximum | JB abs max |
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// 36 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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VoipMetric::VoipMetric() : ssrc_(0) {
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memset(&voip_metric_, 0, sizeof(voip_metric_));
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}
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void VoipMetric::Parse(const uint8_t* buffer) {
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RTC_DCHECK(buffer[0] == kBlockType);
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// reserved = buffer[1];
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RTC_DCHECK(ByteReader<uint16_t>::ReadBigEndian(&buffer[2]) == kBlockLength);
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ssrc_ = ByteReader<uint32_t>::ReadBigEndian(&buffer[4]);
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voip_metric_.lossRate = buffer[8];
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voip_metric_.discardRate = buffer[9];
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voip_metric_.burstDensity = buffer[10];
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voip_metric_.gapDensity = buffer[11];
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voip_metric_.burstDuration = ByteReader<uint16_t>::ReadBigEndian(&buffer[12]);
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voip_metric_.gapDuration = ByteReader<uint16_t>::ReadBigEndian(&buffer[14]);
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voip_metric_.roundTripDelay =
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ByteReader<uint16_t>::ReadBigEndian(&buffer[16]);
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voip_metric_.endSystemDelay =
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ByteReader<uint16_t>::ReadBigEndian(&buffer[18]);
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voip_metric_.signalLevel = buffer[20];
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voip_metric_.noiseLevel = buffer[21];
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voip_metric_.RERL = buffer[22];
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voip_metric_.Gmin = buffer[23];
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voip_metric_.Rfactor = buffer[24];
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voip_metric_.extRfactor = buffer[25];
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voip_metric_.MOSLQ = buffer[26];
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voip_metric_.MOSCQ = buffer[27];
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voip_metric_.RXconfig = buffer[28];
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// reserved = buffer[29];
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voip_metric_.JBnominal = ByteReader<uint16_t>::ReadBigEndian(&buffer[30]);
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voip_metric_.JBmax = ByteReader<uint16_t>::ReadBigEndian(&buffer[32]);
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voip_metric_.JBabsMax = ByteReader<uint16_t>::ReadBigEndian(&buffer[34]);
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}
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void VoipMetric::Create(uint8_t* buffer) const {
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const uint8_t kReserved = 0;
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buffer[0] = kBlockType;
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buffer[1] = kReserved;
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ByteWriter<uint16_t>::WriteBigEndian(&buffer[2], kBlockLength);
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ByteWriter<uint32_t>::WriteBigEndian(&buffer[4], ssrc_);
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buffer[8] = voip_metric_.lossRate;
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buffer[9] = voip_metric_.discardRate;
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buffer[10] = voip_metric_.burstDensity;
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buffer[11] = voip_metric_.gapDensity;
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ByteWriter<uint16_t>::WriteBigEndian(&buffer[12], voip_metric_.burstDuration);
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ByteWriter<uint16_t>::WriteBigEndian(&buffer[14], voip_metric_.gapDuration);
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ByteWriter<uint16_t>::WriteBigEndian(&buffer[16],
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voip_metric_.roundTripDelay);
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ByteWriter<uint16_t>::WriteBigEndian(&buffer[18],
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voip_metric_.endSystemDelay);
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buffer[20] = voip_metric_.signalLevel;
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buffer[21] = voip_metric_.noiseLevel;
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buffer[22] = voip_metric_.RERL;
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buffer[23] = voip_metric_.Gmin;
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buffer[24] = voip_metric_.Rfactor;
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buffer[25] = voip_metric_.extRfactor;
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buffer[26] = voip_metric_.MOSLQ;
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buffer[27] = voip_metric_.MOSCQ;
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buffer[28] = voip_metric_.RXconfig;
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buffer[29] = kReserved;
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ByteWriter<uint16_t>::WriteBigEndian(&buffer[30], voip_metric_.JBnominal);
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ByteWriter<uint16_t>::WriteBigEndian(&buffer[32], voip_metric_.JBmax);
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ByteWriter<uint16_t>::WriteBigEndian(&buffer[34], voip_metric_.JBabsMax);
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}
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} // namespace rtcp
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} // namespace webrtc
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