Re: [xine-user] xine library

[Michael R. <mr...@us...>]

Hi James,

> > Besides that, there are also deocders
> > which rely on the frame to be still there (formats like MPEG are
> > predictive: they use previous frames to be able to decode others),
> > so you also must never modify the content of the frame.
>
> This might explain a problem I occasionally see with subtitles.
>
> Sometimes (rarely) small square blocks of the subtitle are seen to
> move away from the subtitle. Presumably this is caused by a race
> condition between MPEG2 decoding and overlay blending, where the
> overlay is blended before the MPEG2 decoder has finished using the
> frame.

Possible, but this should be really rare. Does it happen often enough to 
need fixing? (I ask because the fix would introduce a memcpy, which 
could be even more hazardeous than the inaccurate display.)

Michael

-- 
> SELECT * FROM users WHERE clue > 0
0 rows returned