https://bugs.kde.org/show_bug.cgi?id=425724

--- Comment #7 from Todd Lewis <[email protected]> ---
Further information. I have been using the "SD/DVD Widescreen">>"DV/DVD
Widescreen NTSC" profile because my current application doesn't require higher
resolution. However, this is an interlaced profile, which can be really
annoying for titles even when it's working as designed. Besides, my current
projects will never be viewed on an interlaced display.

So as an experiment I copied /usr/share/mlt/profiles/svcd_ntsc_wide to a new
file /usr/share/mlt/profiles/svcd_ntsc_wide_p and changed it thus:
< progressive=0
--
> progressive=1
leaving everything else the same.

When previewing or rendering the problematic titles with this new otherwise
identical but progressive profile, all of the strance color issues go away.
(Plus it's no longer interlaced, so I'm happy.)

I'm beginning to think this is strictly a problem with mlt rather than
kdenlive. Does kdenlive use mlt to create the previews of titles? If so, either
there's something about how kdenlive interacts with mlt for interlace -- at
least with respect to titles -- or mlt has a bug all its own. I don't know
enough about kdenlive's internals to make a guess though, and I'm not aware of
any wrong color issues with interlace profiles outside of non-white text in
titles.

For my purposes, I can use the progressive profile (renders work fine on
youtube, btw), but that won't help if somebody actually needs interlace.

Thanks for your efforts. Great program.

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