tree 7eaec5160862fbc4799d940ba4b54357b4b83772
parent b7bde5ab8a9c44f0a31cf7be1d3d17d55e6dc433
author Philipp Hancke <phancke@meta.com> 1753810049 -0700
committer WebRTC LUCI CQ <webrtc-scoped@luci-project-accounts.iam.gserviceaccount.com> 1754679688 -0700

Calculate video encode PSNR (in supported codecs)

the Y, U and V components, applications can do a weighted average.

https://w3c.github.io/webrtc-stats/#dom-rtcoutboundrtpstreamstats-psnrsum

Depends on
  https://github.com/cisco/openh264/pull/3824 (for OpenH264)
  https://chromium-review.googlesource.com/c/webm/libvpx/+/6167966 (libvpx)
  https://aomedia-review.googlesource.com/c/aom/+/196501 (libaom)

This CL implements the codec changes,
  https://webrtc-review.googlesource.com/c/src/+/375021
is a follow-up to wire up getStats.

BUG=webrtc:388070060

Change-Id: I7046158a7b6e4183a9ec939fcac94eee9d65530d
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/368960
Reviewed-by: Erik Språng <sprang@webrtc.org>
Commit-Queue: Philipp Hancke <phancke@meta.com>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#45312}