[GEM-dev] gem framerate acuracy

[cyrille henry]

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