[GEM-dev] gem framerate acuracy

[chris clepper]

How many movies?  At some point the hard drive will become a limiting
factor.  You will particualrly see skips when movies load and hit the loop
point at the end of the clip.

Playing any movie back at 10 times the normal speed will not be very smooth.

You can try to load the movies into RAM with the 'ram' message on OSX or
make a RAM disk and copy movies in there if you have the memory.

On 5/15/07, cyrille henry <cyrille.henry at la-kitchen.fr> 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.
>
> while testing time between frame with :
>
> gemhead
> |
> t b b
> |   \
> realtime
> |
> print
>
> i've got average number 20ms (so the fps is 50), but i can have lot's of
> diferences from 1 frame to one other.
> i can have 1 frame at 35ms, and the other at 5ms etc
> so the result is not very good.
>
> changing codec / size of the movie does not really change results
>
> i really don't know what i could do to improve performances.
>
> does anyone have an idea?
>
> thanks
> Cyrille
>
>
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