I'm really not familiar with video, but a project I'm working on requires 20 different video outputs, all synced together. I'm using PD for the project. Consideration of the expenses apart, does anyone know what kind of hardware we would need for this?
Many Thanks Peiman
*www.peimankhosravi.co.uk http://www.peimankhosravi.co.uk || RSS Feed http://peimankhosravi.co.uk/miscposts.rss || Concert News http://spectralkimia.wordpress.com/*
hello, for that kind of project I will choose a network of 20 raspiberry pi if you only need to playback video (no realtime effect) best a
-- do it yourself http://antoine.villeret.free.fr
2013/11/30 peiman khosravi peimankhosravi@gmail.com
I'm really not familiar with video, but a project I'm working on requires 20 different video outputs, all synced together. I'm using PD for the project. Consideration of the expenses apart, does anyone know what kind of hardware we would need for this?
Many Thanks Peiman
*www.peimankhosravi.co.uk http://www.peimankhosravi.co.uk || RSS Feed http://peimankhosravi.co.uk/miscposts.rss || Concert News http://spectralkimia.wordpress.com/*
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Thank you very much. Just a couple of questions. Does the raspberry pi run pd? And can I sync the all of them to a single computer running a pd patch. The audio needs to be synced with the visual too.
Many Thanks Peiman
*www.peimankhosravi.co.uk http://www.peimankhosravi.co.uk || RSS Feed http://peimankhosravi.co.uk/miscposts.rss || Concert News http://spectralkimia.wordpress.com/*
On 30 November 2013 11:27, Antoine Villeret antoine.villeret@gmail.comwrote:
hello, for that kind of project I will choose a network of 20 raspiberry pi if you only need to playback video (no realtime effect) best a
-- do it yourself http://antoine.villeret.free.fr
2013/11/30 peiman khosravi peimankhosravi@gmail.com
I'm really not familiar with video, but a project I'm working on requires 20 different video outputs, all synced together. I'm using PD for the project. Consideration of the expenses apart, does anyone know what kind of hardware we would need for this?
Many Thanks Peiman
*www.peimankhosravi.co.uk http://www.peimankhosravi.co.uk || RSS Feed http://peimankhosravi.co.uk/miscposts.rss || Concert News http://spectralkimia.wordpress.com/*
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Hi,
peiman khosravi wrote:
Does the raspberry pi run pd?
yes, but Gem won't work. That means you will have to drive something like omxplayer from pd.
That also means you can't do generative video with pd/gem.
I still think you can get better results with pre-owned pentium 3/4 than with the Pi, for a fraction of the cost (starting at 15USD on ebay, desktop or laptop).
And can I sync the all of them to a single computer running a pd patch.
yes.
The audio needs to be synced with the visual too.
maybe it's time to elaborate on your needs : you want to play 20 movies (soundtrack included), or to have 20 drawing surfaces that you fill with Gem ? How is sound linked to display ?
Cheers,
Hello,
Thanks for the answers. I've been looking around and it doesn't look like that omxplayer accepts OSC messages. Does it?
Also how are the Pis connected to a network? Through ethernet? In this case I would need a router with 20 outputs right?
To explain a bit more about the project. It's a live band, with precomposed videos playing back (with stop/start variations) across a bunch of analogue TVs placed on stage, all in sync with the sound. We don't know yet to what extent the result will be predetermined or generative but as long as there is the possibility of controlling the overall visual rhythm... The live sound from each instrument is also being transformed through lots of DSP in pd. So it's a complex setup and it needs to be reliable as we'll be taking the show on the road at some point.
Many Thanks
*www.peimankhosravi.co.uk http://www.peimankhosravi.co.uk || RSS Feed http://peimankhosravi.co.uk/miscposts.rss || Concert News http://spectralkimia.wordpress.com/*
On 30 November 2013 16:37, Charles Goyard cg@fsck.fr wrote:
Hi,
peiman khosravi wrote:
Does the raspberry pi run pd?
yes, but Gem won't work. That means you will have to drive something like omxplayer from pd.
That also means you can't do generative video with pd/gem.
I still think you can get better results with pre-owned pentium 3/4 than with the Pi, for a fraction of the cost (starting at 15USD on ebay, desktop or laptop).
And can I sync the all of them to a single computer running a pd patch.
yes.
The audio needs to be synced with the visual too.
maybe it's time to elaborate on your needs : you want to play 20 movies (soundtrack included), or to have 20 drawing surfaces that you fill with Gem ? How is sound linked to display ?
Cheers,
-- Charlot
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We had to do something similar couple of years ago in a smaller scale (4 machines) and solved it by creating an app with OpenFrameworks that listened to OSC messages. That was controled by a PD patch, but this could have been anything else that sends OSC (python, C++, supercollider ...).
we used laptops and old computers which proved to be a problem since all systems and hardware were slightly different and had different time responses when opening the video, once the OSC message to open had arrived. Funnily enough the fastest machine to open the video was an old laptop running XP. So I believe raspberry could be great, that way all machines and OSs should be identical. At the time raspberry had just came out and it was unclear if it could run the kind of videos we needed to use (pretty good quality), now we know it does play them. So if I would have to do it again I would try to use raspberry
good luck
enrike
lr., 2013.eko azaren 30a 12:09(e)an, peiman khosravi(e)k idatzi zuen:
I'm really not familiar with video, but a project I'm working on requires 20 different video outputs, all synced together. I'm using PD for the project. Consideration of the expenses apart, does anyone know what kind of hardware we would need for this?
Many Thanks Peiman
*www.peimankhosravi.co.uk http://www.peimankhosravi.co.uk || RSS Feed http://peimankhosravi.co.uk/miscposts.rss || Concert News http://spectralkimia.wordpress.com/*
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Antoine Villeret -
Charles Goyard -
enrike -
peiman khosravi