[vlc-devel] Significant regressions in EIA-608 caption rendering

Devin Heitmueller dheitmueller at kernellabs.com
Mon Jun 25 17:50:15 CEST 2018

Hi Francois,

Thanks for getting back to me.

>> I took a look at captions for the first time in a while in VLC 3.0.2,
>> and it looks like there are a number of regressions, at least on OSX:
>> 1.  Captions are back to being rendered with a translucent background
>> instead of black (which is what the FCC requires)
> That was to be less ugly by default, since the background applies to
> every subtitle format.

That's how it was back in 2010 before I changed it to specifically not
have the translucent background rendering enabled for 608.  So yeah,
if you can fix that it would be great.

>> 2.  Font has changed to one which is much larger than previously used
>> in VLC 2.2.8
>> 3.  Word wrapping problems frequently occurring (this may be a
>> side-effect of #2).
> That shouldn't happen.
> But since there was some change in the way font size is computed in
> regions, and this indirectly applies to grids, there might be an
> regression if that's not only macos. (which i can't see with my test
> samples)

I'll see about getting you a sample (which might have to be shared
privately depending on where it comes from).



Devin J. Heitmueller - Kernel Labs

More information about the vlc-devel mailing list