1 /* 2 * libjingle 3 * Copyright 2012 Google Inc. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright notice, 9 * this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright notice, 11 * this list of conditions and the following disclaimer in the documentation 12 * and/or other materials provided with the distribution. 13 * 3. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #include "talk/media/base/constants.h" 29 30 #include <string> 31 32 namespace cricket { 33 34 const int kVideoCodecClockrate = 90000; 35 const int kDataCodecClockrate = 90000; 36 const int kDataMaxBandwidth = 30720; // bps 37 38 const float kHighSystemCpuThreshold = 0.85f; 39 const float kLowSystemCpuThreshold = 0.65f; 40 const float kProcessCpuThreshold = 0.10f; 41 42 const char* kRtxCodecName = "rtx"; 43 44 // RTP payload type is in the 0-127 range. Use 128 to indicate "all" payload 45 // types. 46 const int kWildcardPayloadType = -1; 47 48 const char* kCodecParamAssociatedPayloadType = "apt"; 49 50 const char* kOpusCodecName = "opus"; 51 52 // draft-spittka-payload-rtp-opus-03.txt 53 const char* kCodecParamPTime = "ptime"; 54 const char* kCodecParamMaxPTime = "maxptime"; 55 const char* kCodecParamMinPTime = "minptime"; 56 const char* kCodecParamSPropStereo = "sprop-stereo"; 57 const char* kCodecParamStereo = "stereo"; 58 const char* kCodecParamUseInbandFec = "useinbandfec"; 59 const char* kCodecParamMaxAverageBitrate = "maxaveragebitrate"; 60 61 const char* kCodecParamSctpProtocol = "protocol"; 62 const char* kCodecParamSctpStreams = "streams"; 63 64 const char* kParamValueTrue = "1"; 65 const char* kParamValueEmpty = ""; 66 67 const int kOpusDefaultMaxPTime = 120; 68 const int kOpusDefaultPTime = 20; 69 const int kOpusDefaultMinPTime = 3; 70 const int kOpusDefaultSPropStereo = 0; 71 const int kOpusDefaultStereo = 0; 72 const int kOpusDefaultUseInbandFec = 0; 73 74 const int kPreferredMaxPTime = 60; 75 const int kPreferredMinPTime = 10; 76 const int kPreferredSPropStereo = 0; 77 const int kPreferredStereo = 0; 78 const int kPreferredUseInbandFec = 0; 79 80 const char* kRtcpFbParamNack = "nack"; 81 const char* kRtcpFbParamRemb = "goog-remb"; 82 83 const char* kRtcpFbParamCcm = "ccm"; 84 const char* kRtcpFbCcmParamFir = "fir"; 85 const char* kCodecParamMaxBitrate = "x-google-max-bitrate"; 86 const char* kCodecParamMinBitrate = "x-google-min-bitrate"; 87 const char* kCodecParamMaxQuantization = "x-google-max-quantization"; 88 89 const int kGoogleRtpDataCodecId = 101; 90 const char kGoogleRtpDataCodecName[] = "google-data"; 91 92 const int kGoogleSctpDataCodecId = 108; 93 const char kGoogleSctpDataCodecName[] = "google-sctp-data"; 94 95 const char kComfortNoiseCodecName[] = "CN"; 96 97 } // namespace cricket 98
