Chris

I am trying to do a looping write of five 5 second videos with a random chance of wether or not it is recording (0-4 and then repeat.)

And while that is happening I am trying to randomly grab and play one of the videos from that bank of 5.

To get an idea of what I am doing please see attached patch.

1. I want to avoid reading/writing a file that is in the process of reading/writing already as it makes for glitchy-ness.

I have an inelegant solution with the == object, but is there a better way? (i really feel there must be)

2. eventually the whole thing crashes with this error:

jit.record * error - error opening file: Too many open files

once this happens the video on the right (playing video) just freezes on a frame and does not load anything new.

What is happening here and what would be the best way to avoid it?

my gut says that for some reason jitter his holding onto every file that is read and played somewhere and that buffer is getting full.

If that is true how do i clear that buffer? (or is my gut wrong?)

I am trying to do a looping write of five 5 second videos with a random chance of wether or not it is recording (0-4 and then repeat.)
And while that is happening I am trying to randomly grab and play one of the videos from that bank of 5.
To get an idea of what I am doing please see attached patch.   

two questions,
1. I want to avoid reading/writing a file that is in the process of reading/writing already as it makes for glitchy-ness.
I have an inelegant solution with the == object, but is there a better way? (i really feel there must be)

2. eventually the whole thing crashes with this error:
jit.record * error - error opening file: Too many open files
once this happens the video on the right (playing video) just freezes on a frame and does not load anything new.
What is happening here and what would be the best way to avoid it?
my gut says that for some reason jitter his holding onto every file that is read and played somewhere and that buffer is getting full.
If that is true how do i clear that buffer? (or is my gut wrong?)

writing-video-in-a-loop-and-reading-from-that-bak-while-it-may-be-writing

. You can use it as a circular buffer of video frames (say, 150 in your case), and choose a 30-frame range to read (after making sure it's not the section in which you're writing).

See jit.matrixset. You can use it as a circular buffer of video frames (say, 150 in your case), and choose a 30-frame range to read (after making sure it's not the section in which you're writing).


I'm digging into this new object but not able just yet to wrap my head around it fully.

it would be OK to just make a big list of frames that are randomly grabbed in 5 second snippets, and then to constantly play random 5 second snippets from that list. But i am having trouble understanding how to get the output separate from the input. And probably also not understanding a lot of other things.

(and still not sure how to effectively not make sure it is not trying to read a section that is recording, or write on a section that is reading.)

Thanks Christopher,
I'm digging into this new object but not able just yet to wrap my head around it fully.
it would be OK to just make a big list of frames that are randomly grabbed in 5 second snippets, and then to constantly play random 5 second snippets from that list.  But i am having trouble understanding how to get the output separate from the input.  And probably also not understanding a lot of other things.
 (and still not sure how to effectively not make sure it is not trying to read  a section that is recording, or write on a section that is reading.)
Attached are me efforts so far...
Any pointers/hints?
Thank you again for your help!


I'd probably approach it something like this.

I don't really have time to put in comments or explain at length, but if you go through this patch step by step it should make sense, I hope.

It will take me a bit of time to wrap my head around it, but will certainyl check it out in depth.

Thanks Christopher,
This looks really helpful!
It will take me a bit of time to wrap my head around it, but will certainyl check it out in depth.
:)


Just wanted to report back that with a little help from another that was a big part of the fix.

Just wanted to report back that with a little help from another that was a big part of the fix.
Thanks for your help!!

Writing video in a loop and reading from that bank (while it may be writing)