[PD] GEM question: reading from big videos

[Max]

Hi João,

actually those patches won't help you so much, as it aims at very short samples/videos up to about 8 seconds, depending how much memory your graphics card has. But they may give you an idea how to proceed. It's definitely not a good Idea trying to load a long HD movie in a [gemframebuffer] it might even crash gem if the memory on the card is not sufficient.
but try if h.264 (compression) in pix_film runs smoothly enough (that may also depend on the OS you are on).
If anyone disagrees with above please chime in.

Max

Am 07.09.2012 um 05:33 schrieb Luiz Naveda:

> Hi João,
> 
> Have a look at the pristine tutorials of Max Neupert:
> 
> http://www.uni-weimar.de/medien/wiki/Audiovideo
> 
> and have fun!
> 
> Luiz Naveda
> 
> http://naveda.info
> 
> On Thu, Sep 6, 2012 at 5:15 AM, João Pais <jmmmpais at googlemail.com> wrote:
>> Hi list,
>> 
>> I have almost no experience with GEM, so I wanted to ask around about this.
>> I have a patch that should play 3 HD films, in the following way:
>> 
>> - the main patch plays the sound, and sends the frame-infos around through
>> OSC
>> - the frame-infos are received by 3 video player patches (each in one
>> separate Pd instance), each one playing one film
>> - the films are a bit heavy: 1/3 full HD = 640x1080pix each, around 6m long
>> (maybe more). The playing speed is around 25fps, sometimes less, sometimes
>> more
>> - the hardware has a SSD disk, and i5 quad processor > 2,7Ghz (I can't say
>> yet much about the graphic card)
>> 
>> Which object is more adequate to play these videos in GEM?
>> Probably isn't a good idea to load the videos into RAM. The playback is also
>> very variable: forward, backward, something else... That means, is there a
>> buffer-setting that would help in this case?
>> And, under this context, how fast could the video be played?
>> 
>> Thanks,
>> 
>> João
>> 
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> 
> 
> 
> -- 
> Luiz Naveda
> 
> http://naveda.info
> 
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