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

https://www.researchgate.net/publication/383545049_Low-Complexity_Video_PSNR_Measurement_in_Real-Time_Communication_Products has a whole paper about this.

tl;dr is "gp is codec dependent", PSNR is not (but comes at a cost hence this can not be a simple sum)

@youennf the folks who implemented https://developer.apple.com/documentation/videotoolbox/kvtcompressionpropertykey_calculatemeansquarederror?changes=l_4_8 might be able to tell you more too.

cc @taste1981

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Received on Thursday, 6 February 2025 16:09:18 UTC