| /* |
| * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| #ifndef WEBRTC_MEDIA_BASE_MEDIACONSTANTS_H_ |
| #define WEBRTC_MEDIA_BASE_MEDIACONSTANTS_H_ |
| |
| #include <string> |
| |
| // This file contains constants related to media. |
| |
| namespace cricket { |
| |
| extern const int kVideoCodecClockrate; |
| extern const int kDataCodecClockrate; |
| extern const int kDataMaxBandwidth; // bps |
| |
| // Default CPU thresholds. |
| extern const float kHighSystemCpuThreshold; |
| extern const float kLowSystemCpuThreshold; |
| extern const float kProcessCpuThreshold; |
| |
| extern const char kRtxCodecName[]; |
| extern const char kRedCodecName[]; |
| extern const char kUlpfecCodecName[]; |
| extern const char kFlexfecCodecName[]; |
| |
| extern const char kFlexfecFmtpRepairWindow[]; |
| |
| // Codec parameters |
| extern const char kCodecParamAssociatedPayloadType[]; |
| |
| extern const char kOpusCodecName[]; |
| extern const char kIsacCodecName[]; |
| extern const char kL16CodecName[]; |
| extern const char kG722CodecName[]; |
| extern const char kIlbcCodecName[]; |
| extern const char kPcmuCodecName[]; |
| extern const char kPcmaCodecName[]; |
| extern const char kCnCodecName[]; |
| extern const char kDtmfCodecName[]; |
| |
| // Attribute parameters |
| extern const char kCodecParamPTime[]; |
| extern const char kCodecParamMaxPTime[]; |
| // fmtp parameters |
| extern const char kCodecParamMinPTime[]; |
| extern const char kCodecParamSPropStereo[]; |
| extern const char kCodecParamStereo[]; |
| extern const char kCodecParamUseInbandFec[]; |
| extern const char kCodecParamUseDtx[]; |
| extern const char kCodecParamMaxAverageBitrate[]; |
| extern const char kCodecParamMaxPlaybackRate[]; |
| extern const char kCodecParamSctpProtocol[]; |
| extern const char kCodecParamSctpStreams[]; |
| |
| extern const char kParamValueTrue[]; |
| // Parameters are stored as parameter/value pairs. For parameters who do not |
| // have a value, |kParamValueEmpty| should be used as value. |
| extern const char kParamValueEmpty[]; |
| |
| // opus parameters. |
| // Default value for maxptime according to |
| // http://tools.ietf.org/html/draft-spittka-payload-rtp-opus-03 |
| extern const int kOpusDefaultMaxPTime; |
| extern const int kOpusDefaultPTime; |
| extern const int kOpusDefaultMinPTime; |
| extern const int kOpusDefaultSPropStereo; |
| extern const int kOpusDefaultStereo; |
| extern const int kOpusDefaultUseInbandFec; |
| extern const int kOpusDefaultUseDtx; |
| extern const int kOpusDefaultMaxPlaybackRate; |
| |
| // Prefered values in this code base. Note that they may differ from the default |
| // values in http://tools.ietf.org/html/draft-spittka-payload-rtp-opus-03 |
| // Only frames larger or equal to 10 ms are currently supported in this code |
| // base. |
| extern const int kPreferredMaxPTime; |
| extern const int kPreferredMinPTime; |
| extern const int kPreferredSPropStereo; |
| extern const int kPreferredStereo; |
| extern const int kPreferredUseInbandFec; |
| |
| // rtcp-fb messages according to RFC 4585 |
| extern const char kRtcpFbParamNack[]; |
| extern const char kRtcpFbNackParamPli[]; |
| // rtcp-fb messages according to |
| // http://tools.ietf.org/html/draft-alvestrand-rmcat-remb-00 |
| extern const char kRtcpFbParamRemb[]; |
| // rtcp-fb messages according to |
| // https://tools.ietf.org/html/draft-holmer-rmcat-transport-wide-cc-extensions-01 |
| extern const char kRtcpFbParamTransportCc[]; |
| // ccm submessages according to RFC 5104 |
| extern const char kRtcpFbParamCcm[]; |
| extern const char kRtcpFbCcmParamFir[]; |
| // Google specific parameters |
| extern const char kCodecParamMaxBitrate[]; |
| extern const char kCodecParamMinBitrate[]; |
| extern const char kCodecParamStartBitrate[]; |
| extern const char kCodecParamMaxQuantization[]; |
| extern const char kCodecParamPort[]; |
| |
| // We put the data codec names here so callers of DataEngine::CreateChannel |
| // don't have to import rtpdataengine.h to get the codec names they want to |
| // pass in. |
| extern const int kGoogleRtpDataCodecPlType; |
| extern const char kGoogleRtpDataCodecName[]; |
| |
| // TODO(pthatcher): Find an id that won't conflict with anything. On |
| // the other hand, it really shouldn't matter since the id won't be |
| // used on the wire. |
| extern const int kGoogleSctpDataCodecPlType; |
| extern const char kGoogleSctpDataCodecName[]; |
| |
| extern const char kComfortNoiseCodecName[]; |
| |
| extern const char kVp8CodecName[]; |
| extern const char kVp9CodecName[]; |
| extern const char kH264CodecName[]; |
| |
| // RFC 6184 RTP Payload Format for H.264 video |
| extern const char kH264FmtpProfileLevelId[]; |
| extern const char kH264FmtpLevelAsymmetryAllowed[]; |
| extern const char kH264FmtpPacketizationMode[]; |
| extern const char kH264FmtpSpropParameterSets[]; |
| extern const char kH264ProfileLevelConstrainedBaseline[]; |
| |
| extern const int kDefaultVideoMaxFramerate; |
| } // namespace cricket |
| |
| #endif // WEBRTC_MEDIA_BASE_MEDIACONSTANTS_H_ |