joshualeeginsburg

I'm trying to have two videos respond to each other. to do this i need to know where a video is in its loop, so i'm using 'gettime' then triggering video 2 on half the time of the loop from 1.

the problem is that the time out of jit.qt.movie seems to skip values. for example if a clip is looping between 1000 and 2000 and i have a 'sel 1500', sometimes it bangs it, sometimes it skips the number 1500 and no bang is recorded.

i have achieved crude success using 'if > 1500 but it is not accurate for my application.

Why does the time skip values? is there a setting to insure accuracy?

My video file's frame rate is 25, the metro driving the jit.qt.movie is running at 40. each metro bang triggers a 'gettime' which if accurate would trigger the next movie at a specific value.

the problem is that the time out of jit.qt.movie seems to skip values. for example if a clip is looping between 1000 and 2000 and i have a 'sel 1500', sometimes it bangs it, sometimes it skips the number 1500 and no bang is recorded. 

i have achieved crude success using 'if > 1500 but it is not accurate for my application. 

My video file's frame rate is 25, the metro driving the jit.qt.movie is running at 40. each metro bang triggers a 'gettime' which if accurate would trigger the next movie at a specific value.


timing-inaccuracy

total hack, and still not the exact accuracy you want, but this might 

help. probably don't even need the qlim object. hopefully somebody 

> I'm trying to have two videos respond to each other. to do this i 

> need to know where a video is in its loop, so i'm using 'gettime' 

> then triggering video 2 on half the time of the loop from 1.

> the problem is that the time out of jit.qt.movie seems to skip 

> values. for example if a clip is looping between 1000 and 2000 and 

> i have a 'sel 1500', sometimes it bangs it, sometimes it skips the 

> i have achieved crude success using 'if > 1500 but it is not 

> Why does the time skip values? is there a setting to insure accuracy?

> My video file's frame rate is 25, the metro driving the 

> jit.qt.movie is running at 40. each metro bang triggers a 'gettime' 

> which if accurate would trigger the next movie at a specific value.

total hack, and still not the exact accuracy you want, but this might  
help.  probably don't even need the qlim object.  hopefully somebody  
has a better answer....
--------

>
> I'm trying to have two videos respond to each other. to do this i  
> need to know where a video is in its loop, so i'm using 'gettime'  
> then triggering video 2 on half the time of the loop from 1.
>
> the problem is that the time out of jit.qt.movie seems to skip  
> values. for example if a clip is looping between 1000 and 2000 and  
> i have a 'sel 1500', sometimes it bangs it, sometimes it skips the  
> number 1500 and no bang is recorded.
>
> i have achieved crude success using 'if > 1500 but it is not  
> accurate for my application.
>
> Why does the time skip values? is there a setting to insure accuracy?
>
> My video file's frame rate is 25, the metro driving the  
> jit.qt.movie is running at 40. each metro bang triggers a 'gettime'  
> which if accurate would trigger the next movie at a specific value.


thanks for your help. using the split ive managed to ge it under some control.

Timing inaccuracy