ffmpeg Codec Update (HAPR specifically)

[basicmonkey]

The recent updates to HAP encoding methods are really interesting and do seem to have an impact on image quality in the nuanced areas where you can see the difference between a master and a HAP encode (some noise/chroma aliasing).

It would be amazingly useful to have access to these in ffmpeg. Is there any chance of Tom or Vittorio kindly updating their work in ffmpeg to make this happen?

Many thanks,

James

[leavittx]

Hi,
We did it a while ago already.
You can find a link to our Shutter Encoder fork on our website: https://demolition-studios.tilda.ws/
And in the distribution there is an updated ffmpeg version with more Hap formats support including Hap R

[mattbeghin]

Hi Lev @leavittx ,
Can you redirect me to the ffmpeg source code with Hap-R support ?
FFMPEG master branch code doesn't mention BC7 or HapR:
https://github.com/FFmpeg/FFmpeg/blob/master/libavcodec/hapdec.c
https://github.com/FFmpeg/FFmpeg/blob/master/libavcodec/hapenc.c
If I can be of any help, I'm not against contributing to finition.
Thanks!

[leavittx]

Our fork is here: https://github.com/DemolitionStudios/FFmpeg/tree/hap_bc6h
Would be nice to get it into FFmpeg master, at least the bc7 part, which should be cross-platform, not sure if it's easy to get bc6h part though.
GDeflate isn't a part of Hap specification, so it can be skipped I think.
I don't have time to make a pull request to FFmpeg, so if you feel like doing it, feel free to!
There are no unit tests for the new code and it can be cleared from the TODOs