Properties:
| Name | Type | Argument | Description | 
|---|---|---|---|
| trackId | Track.ID | The Track ID | |
| trackSid | Track.SID | ||
| timestamp | number | A Unix timestamp in milliseconds indicating when the TrackStats were gathered | |
| ssrc | string | The Track's SSRC when transmitted over the RTCPeerConnection | |
| packetsLost | number | <nullable> | The number of packets lost | 
| codec | string | <nullable> | The name of the codec used to encode the Track's media |