yuvj420p and 16-255

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Djfe
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Posts: 178
Joined: Tue May 13, 2014 8:01 pm

yuvj420p and 16-255

Post by Djfe » Mon Apr 17, 2017 9:31 pm

Would it be useful for HB to support yuvj420p encoding?
I read elsewhere that it is deprecated since tvs can't decode it correctly or something
so maybe not?

musicvid
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Joined: Sat Jun 27, 2009 1:19 am

Re: yuvj420p and 16-255

Post by musicvid » Mon Apr 17, 2017 9:57 pm

The flag is honored by Handbrake when present in the source, and can be invoked in the output with the - - fullrange flag.

Player support, however, is forever spotty so your source "may" look contrasty in a player.

Djfe
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Posts: 178
Joined: Tue May 13, 2014 8:01 pm

Re: yuvj420p and 16-255

Post by Djfe » Mon Apr 17, 2017 11:17 pm

cool, thx! :)
I might use that, to preserve some of the colors
(I noticed, that some of the red looks a bit different between full and limited range)

do you know a way to correct tonal range with ffmpeg?
(I want to set the black level, so that every color below 8 is essentially black (0) in the output later on, the other values above that have to be adjusted of course)
I know it's possible to do it with Premiere and I used that to find out that 8 is the correct value
in-case there is no filter, I might use Premiere though
I searched already but couldn't find a filter for it

there is color levels, but it's rgb only for some reason :/

edit:
ignore what I said
colorlevels works fine for my case

thx for your help again :)

musicvid
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Re: yuvj420p and 16-255

Post by musicvid » Tue Apr 18, 2017 3:39 am

If you are trying to eliminate +7 setup from tape or other analog source, that should be simple in an ffmpeg or avisynth playground; you are entirely on your own as to command lines.

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