[PD] How to capture sound & video from Pd/Gem

ALAN BROOKER alan.brooker2010 at gmail.com
Fri Mar 4 00:38:22 CET 2011


if you don't get anywhere with [pdp_rec~] another alternative could be
to try the gridflow objects [#to_pix] to connect a Gem scene to
gridflow -- then connect to [#record] to record the scene. However I
don't think it records sound- check out the Gridflow help index and
files.

Personally I have not had much luck with recording in Gem, as
mentioned I output tiffs to combine into a movie file...any sound I
record separately and add later using a video editor.

A bit of a pain but at least it comes together in the end. ..except
IMHO the only really good video editor (Kdenlives) loves crashing .
Next best thing is Pitivi

On Thu, Mar 3, 2011 at 4:38 PM, Markus Demmel <az at zankapfel.org> wrote:
> Hi,
>
> it looks like i can't capture with recordmyDesktop... i only get error code 256
> / 2816
>
> I would like to give [pdp_rec~] a try, but i can't make a [pix_2pdp] object. The
> error message here is:
>
> /usr/lib/pd-extended/extra/pix_2pdp.pd_linux:
> /usr/lib/pd-extended/extra/pix_2pdp.pd_linux: undefined symbol:
> _ZN9CPPExtern4postEPKcz
>
> but the object is there and the help file refers to pix_freeframe, which could
> be because of the version of GEM from svn.
>
> Markus
>
> On 02.03.2011 00:12, Pedro Lopes wrote:
>> Hey,
>>
>> I use recordmydesktop, it captures OpenGL and audio through Jack, sou I route it
>> to record pd output.
>> Sometimes I have lags, which is shi* but then again I did not setup things
>> carefully (i'm not with an rt kernel now, and my screen is wideeeeeeee).
>>
>> All these videos are recorded that way
>> 1) http://vimeo.com/11792446 (see the last frame of this one[1], it helps you
>> with the arguments for the recordmydesktop - since they are a bit freaky) - This
>> was done with a slower laptop than my newer but it was RT and I really felt that
>> it helps in grabbing the video/audio data.
>> 2) http://vimeo.com/11949192 (see the first frame of this one[1], no lagged
>> older laptop with rt kernel)
>> 3) http://vimeo.com/17469068 (once again first frame, this is lagged better
>> laptop, kernel is not rt)
>>
>> [1] hooray for laziness in not cutting the videos!
>>
>> Best,
>> Pedro Lopes
>>
>> On Tue, Mar 1, 2011 at 9:55 PM, ALAN BROOKER <alan.brooker2010 at gmail.com
>> <mailto:alan.brooker2010 at gmail.com>> wrote:
>>
>>     ahh correction- the object is under pidip and is called [pdp_rec~]
>>
>>     On Tue, Mar 1, 2011 at 9:44 PM, ALAN BROOKER <alan.brooker2010 at gmail.com
>>     <mailto:alan.brooker2010 at gmail.com>> wrote:
>>     > I dont know how much this could help but a good object for recording
>>     > visuals and sound synced is[pdp_record] either part of pdp or pidip
>>     > (cant remember which one).
>>     >
>>     > try the gem_to_pdp bridge to connect Gem scene and [pdp_record]
>>     > together. To be honest I am as yet to try this myself as I often just
>>     > out put Gem visuals as a series of tiffs and then stitch them together
>>     > later to make an ogg file.
>>     >
>>     >
>>     >
>>     >
>>     > On Tue, Mar 1, 2011 at 9:29 PM, Markus Demmel <az at zankapfel.org
>>     <mailto:az at zankapfel.org>> wrote:
>>     >> Hi List,
>>     >>
>>     >> does anybody know a good (working) way to capture audio and video from Pd/Gem
>>     >> under linux?
>>     >>
>>     >> So far i tried using glc-capture, which gives good video results, but
>>     refuses to
>>     >> record any sound at all. glc-capture should work with alsa, but it only
>>     outputs
>>     >> error messages like this: snd_pcm_open (input): Device or resource busy or [
>>     >> 33.15s alsa_capture error ] initialization failed: Invalid argument ...
>>     >>
>>     >> markus
>>     >>
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>>
>>
>>
>> --
>> Pedro Lopes (MSc)
>> contact: pedro.lopes at ist.utl.pt <mailto:pedro.lopes at ist.utl.pt>
>> website: http://web.ist.utl.pt/Pedro.Lopes / http://pedrolopesresearch.wordpress.com/ | http://twitter.com/plopesresearch
>



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