| # 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 shoud be present only in the first packet of each frame. |
| If attached to other packets it can be ignored. |
