Re: [webrtc-stats] Add PSNR (Y/U/V) for outbound-rtp (#794)

Specs should try to help browser implementors, especially those that do not rely on libwebrtc.
Ideally, it should not be needed to look at libwebrtc to understand how to implement a feature.

@sprangerik already provided some guidelines, which could be used to add an informal note.
Something like:
- Doing a PSNR measurement incurs a performance penalty that varies according each encoder implementation.
- The frequency of PSNR measurements can be made as high as possible as long as it does not introduce a noticeable performance penalty
- A fixed frequency value for each encoder implementation is a reasonable approach

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Received on Thursday, 10 July 2025 06:50:05 UTC