Subject: [AVTCORE] Draft Reply to Liaison Letter about Green-Mpeg Updates

From: "Herglotz, Christian" <[email-masked]>
Date: Mon, 22 Nov 2021 09:38:13 +0000

Dear AVTcore experts,

at the last AVTCORE meeting, we were asked to prepare a draft reply for the LS letter from MPEG-Systems concerning green metadata. Here is our proposal:

 The IETF AVTCORE working group replies to the Liaison letter "Liaison statement to IETF on MPEG Green Metadata", Serial number 21052, from October 2021.
IETF AVTCORE working group acknowledges and appreciates your work on updating the specifications of the GREEN-MPEG standard and thinks that the following aspects could be of interest for IETF AVTCORE working group:
- The green metadata for "interactive signalling for remote decoder power reduction" is of interest for return channel signalling via, e.g., RTCP.
- It remains to be seen whether metadata signaling from the sender to the receiver could be included in IETF specifications, in particular when the content of the metadata is codec-independent (e.g., "quality recovery after low power encoding").
The AVTCORE working group is contributions driven and further work in the group can be pursued by providing draft proposals to be discussed via the AVTCORE working group email reflector.

We're happy to receive your feedback,
Best regards

Christian