[GEM-dev] gem framerate acuracy

[Roman Haefeli]

On Tue, 2007-05-15 at 16:46 +0200, cyrille henry wrote:
> hello,
> 
> im still working on the project using many videos,
> i've got problem with frame rate acuracy.
> 
> i test with only 1 movie, so the CPU are very low.
> i'm using apple intermediate codec.
> gem fps is set to 50, video speed is varing from about 1 to 10
> 
> the problem is that visually, the video does not play very smooth.

i had a similar issue once. i tried to play a movie with the specs
720x576 @ 25fps on a osx box. though i set the framerate of gem also to
25fps, the movie stuttered a bit when played in gem. since i used the
[auto 1( option of [pix_film], i tried a different method of syncing: i
made a counter, which was triggered by [gemhead], and used the output of
the counter to set the frame-number of [pix_film]. for some reason, this
worked much better and gemwin and the movie were perfect in sync and no
stuttering was visible anymore.


roman




	
		
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