137 lines
4.9 KiB
C++
137 lines
4.9 KiB
C++
/*
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* Copyright (c) 2012 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 "media/base/media_constants.h"
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namespace cricket {
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const int kVideoCodecClockrate = 90000;
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const int kVideoMtu = 1200;
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const int kVideoRtpSendBufferSize = 65536;
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const int kVideoRtpRecvBufferSize = 262144;
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const float kHighSystemCpuThreshold = 0.85f;
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const float kLowSystemCpuThreshold = 0.65f;
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const float kProcessCpuThreshold = 0.10f;
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const char kRedCodecName[] = "red";
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const char kUlpfecCodecName[] = "ulpfec";
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const char kMultiplexCodecName[] = "multiplex";
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// TODO(brandtr): Change this to 'flexfec' when we are confident that the
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// header format is not changing anymore.
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const char kFlexfecCodecName[] = "flexfec-03";
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// draft-ietf-payload-flexible-fec-scheme-02.txt
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const char kFlexfecFmtpRepairWindow[] = "repair-window";
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// RFC 4588 RTP Retransmission Payload Format
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const char kRtxCodecName[] = "rtx";
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const char kCodecParamRtxTime[] = "rtx-time";
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const char kCodecParamAssociatedPayloadType[] = "apt";
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const char kCodecParamAssociatedCodecName[] = "acn";
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// Parameters that do not follow the key-value convention
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// are treated as having the empty string as key.
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const char kCodecParamNotInNameValueFormat[] = "";
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const char kOpusCodecName[] = "opus";
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const char kIsacCodecName[] = "ISAC";
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const char kL16CodecName[] = "L16";
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const char kG722CodecName[] = "G722";
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const char kIlbcCodecName[] = "ILBC";
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const char kPcmuCodecName[] = "PCMU";
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const char kPcmaCodecName[] = "PCMA";
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const char kCnCodecName[] = "CN";
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const char kDtmfCodecName[] = "telephone-event";
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// draft-spittka-payload-rtp-opus-03.txt
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const char kCodecParamPTime[] = "ptime";
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const char kCodecParamMaxPTime[] = "maxptime";
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const char kCodecParamMinPTime[] = "minptime";
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const char kCodecParamSPropStereo[] = "sprop-stereo";
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const char kCodecParamStereo[] = "stereo";
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const char kCodecParamUseInbandFec[] = "useinbandfec";
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const char kCodecParamUseDtx[] = "usedtx";
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const char kCodecParamMaxAverageBitrate[] = "maxaveragebitrate";
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const char kCodecParamMaxPlaybackRate[] = "maxplaybackrate";
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const char kParamValueTrue[] = "1";
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const char kParamValueEmpty[] = "";
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const int kOpusDefaultMaxPTime = 120;
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const int kOpusDefaultPTime = 20;
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const int kOpusDefaultMinPTime = 3;
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const int kOpusDefaultSPropStereo = 0;
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const int kOpusDefaultStereo = 0;
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const int kOpusDefaultUseInbandFec = 0;
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const int kOpusDefaultUseDtx = 0;
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const int kOpusDefaultMaxPlaybackRate = 48000;
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const int kPreferredMaxPTime = 120;
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const int kPreferredMinPTime = 10;
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const int kPreferredSPropStereo = 0;
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const int kPreferredStereo = 0;
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const int kPreferredUseInbandFec = 0;
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const char kPacketizationParamRaw[] = "raw";
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const char kRtcpFbParamLntf[] = "goog-lntf";
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const char kRtcpFbParamNack[] = "nack";
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const char kRtcpFbNackParamPli[] = "pli";
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const char kRtcpFbParamRemb[] = "goog-remb";
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const char kRtcpFbParamTransportCc[] = "transport-cc";
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const char kRtcpFbParamCcm[] = "ccm";
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const char kRtcpFbCcmParamFir[] = "fir";
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const char kRtcpFbParamRrtr[] = "rrtr";
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const char kCodecParamMaxBitrate[] = "x-google-max-bitrate";
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const char kCodecParamMinBitrate[] = "x-google-min-bitrate";
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const char kCodecParamStartBitrate[] = "x-google-start-bitrate";
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const char kCodecParamMaxQuantization[] = "x-google-max-quantization";
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const char kComfortNoiseCodecName[] = "CN";
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const char kVp8CodecName[] = "VP8";
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const char kVp9CodecName[] = "VP9";
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const char kAv1CodecName[] = "AV1";
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const char kH264CodecName[] = "H264";
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#ifndef DISABLE_H265
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const char kH265CodecName[] = "H265";
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#endif
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// RFC 6184 RTP Payload Format for H.264 video
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const char kH264FmtpProfileLevelId[] = "profile-level-id";
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const char kH264FmtpLevelAsymmetryAllowed[] = "level-asymmetry-allowed";
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const char kH264FmtpPacketizationMode[] = "packetization-mode";
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const char kH264FmtpSpropParameterSets[] = "sprop-parameter-sets";
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const char kH264FmtpSpsPpsIdrInKeyframe[] = "sps-pps-idr-in-keyframe";
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const char kH264ProfileLevelConstrainedBaseline[] = "42e01f";
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const char kH264ProfileLevelConstrainedHigh[] = "640c1f";
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#ifndef DISABLE_H265
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// RFC 7798 RTP Payload Format for H.265 video
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const char kH265FmtpProfileSpace[] = "profile-space";
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const char kH265FmtpProfileId[] = "profile-id";
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const char kH265FmtpTierFlag[] = "tier-flag";
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const char kH265FmtpLevelId[] = "level-id";
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#endif
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const int kDefaultVideoMaxFramerate = 60;
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const size_t kConferenceMaxNumSpatialLayers = 3;
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const size_t kConferenceMaxNumTemporalLayers = 3;
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const size_t kConferenceDefaultNumTemporalLayers = 3;
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// RFC 3556 and RFC 3890
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const char kApplicationSpecificBandwidth[] = "AS";
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const char kTransportSpecificBandwidth[] = "TIAS";
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} // namespace cricket
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