const char kRtcpFbCcmParamFir[] = "fir";
const char kCodecParamMaxBitrate[] = "x-google-max-bitrate";
const char kCodecParamMinBitrate[] = "x-google-min-bitrate";
+const char kCodecParamStartBitrate[] = "x-google-start-bitrate";
const char kCodecParamMaxQuantization[] = "x-google-max-quantization";
const char kCodecParamPort[] = "x-google-port";
const char kComfortNoiseCodecName[] = "CN";
+const int kRtpAudioLevelHeaderExtensionDefaultId = 1;
+const char kRtpAudioLevelHeaderExtension[] =
+ "urn:ietf:params:rtp-hdrext:ssrc-audio-level";
+
+const int kRtpTimestampOffsetHeaderExtensionDefaultId = 2;
+const char kRtpTimestampOffsetHeaderExtension[] =
+ "urn:ietf:params:rtp-hdrext:toffset";
+
+const int kRtpAbsoluteSenderTimeHeaderExtensionDefaultId = 3;
+const char kRtpAbsoluteSenderTimeHeaderExtension[] =
+ "http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time";
+
+const int kNumDefaultUnsignalledVideoRecvStreams = 0;
+
+
} // namespace cricket
+