1{ 2 "trackName": "track1", 3 "firstSequenceNumber": 0, 4 "firstTimestamp": 0, 5 "transmitIntervalMs": 30, 6 "mediaDescription": "m=video 0 RTP/AVP 96\r\nc=IN IP4 0.0.0.0\r\nb=AS:500\r\na=rtpmap:96 H264/90000\r\na=fmtp:96 packetization-mode=1;profile-level-id=4dE01E;sprop-parameter-sets=Z01AHpZ2BQHtgKBAAAOpgACvyA0YAgQAgRe98HhEI3A=,aN48gA==\r\na=control:track1\r\n", 7 "packets": [ 8 ] 9} 10