Video Frame Tracking Id

The Video Frame Tracking Id extension is meant for media quality testing purpose and shouldn't be used in production. It tracks webrtc::VideoFrame id field from the sender to the receiver to gather referenced base media quality metrics such as PSNR or SSIM. Contact <jleconte@google.com> for more info.

Name: "Video Frame Tracking Id"

Formal name: <http://www.webrtc.org/experiments/rtp-hdrext/video-frame-tracking-id>

Status: This extension is defined to allow for media quality testing. It is enabled by using a field trial and should only be used in a testing environment.

Data layout overview

1-byte header + 2 bytes of data:

0              1 2 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | ID   | L=1 | video-frame-tracking-id | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

Notes: The extension should be present only in the first packet of each frame. If attached to other packets it can be ignored.