[PD] synchronised video outputs

[simon wise]

On 26 Feb 2008, at 6:15 AM, enrique franco wrote:

> Hi Simon,
>
> Where Can we see the video patches you talk about? I´m very  
> interested.

I'm very busy till the weekend, I'll gather them up and post them  
after that. I'll give a URL to the list when I've done it.

and yes - it isn't a perfect solution, there will be some jitter due  
to the LAN so it isn't as nice as proper time syncing would be, but  
since the frame-rate is usually 40ms that jitter is impossible to  
notice in almost all circumstances, and since actual frame-numbers  
are sent then there is no slippage or getting out of sync over time.  
I've used it with 5-projector wide images with fast movement across  
them.

The biggest challenge is always getting the codec right for the  
circumstances, issues like whether the original was interlaced can be  
tricky. I find the results always better than DVDs which where often  
the more expensive alternative.

The system has been especially useful to me when I've needed to  
present a sequence with different formats, possibly with still  
images, when I've wanted to be able to cue things manually, and when  
lots of keystoning or colour correction was needed to line things up.


simon