[QLab] Video Plugins Final Beta, For Real "Ain't Foolin" Edition

[Christopher Ashworth]

On Mar 3, 2007, at 12:39 PM, John Leonard wrote:

> on 3/3/07 15:58, Christopher Ashworth at Chris at chrisashworth.org  
> wrote:
>
>> A question on this:
>>
>> What were the characteristics of the lockup?  For example, did
>> pressing escape not turn off all the videos?  Other characteristics?
>
> It varies:
>
> The first time, it locked the machine solid and gave me the SPOD:  
> escape did
> nothing, force quit did nothing. I can't remember if I was running
> full-screen at the time. I ran the sequence again immediately after
> installing the Pro licence and it behaved perfectly, then I ran it  
> again and
> got the lock-up. This time (and so far, repeatably,) hitting escape  
> actually
> quits the program. Are crash-logs any use to you Chris? I thought I'd
> auto-reported a couple of times on this issue, but maybe not.

Yes, I did get those logs, and yes they are helpful.  They don't  
always give me a clear indication of what's wrong, but they do help.

> I've just tested my sequence a couple more times and there's no  
> particular
> logic to the problem. Two faultless passes, then one lock-up part way
> through a fade as another video kicks in, then another faultless  
> pass, then
> a lock-up that's cleared by the escape key.

Hmmm...this is classic behavior from a threading problem.  Looks like  
I'll have to reexamine the thread synchronization.

> I've got a couple of hours free now, so I'll beat this one into the  
> ground
> and see if I can find a common factor.
>
> Chris, I've got an iSight camera with me - any value in iChatting  
> whilst I
> run the sequence?

Sorry not to get back to you earlier--I was out today.  What may  
really help is if you can send me the workspace that causes the  
crash.  No need to send the movies on the first iteration, just the  
workspace.  I'll run it on my PowerBook G4 and see if I get the same  
thing.  If I can recreate it it will be much easier to fix.

FWIW, I found a few other small bugs in the Video Cue after putting  
out the beta.  (i.e. the "infinite loop" state is not preserved  
correctly in some instances, say after copying the cue.)  I'll fix  
these up too.

-C