[PD] Fwd: GEM Neupert Tutorial '10-av-more control'. How do I play more than 1 video?

J bz jbeezez at gmail.com
Fri Sep 24 21:57:05 CEST 2010


---------- Forwarded message ----------
From: J bz <jbeezez at gmail.com>
Date: 24 September 2010 20:56
Subject: Re: [PD] Fwd: GEM Neupert Tutorial '10-av-more control'. How do I
play more than 1 video?
To: Jack <jack at rybn.org>


Hi Jack,

Aaah, thank you indeed.

I checked the original on a mac today, and it sort of worked, no crashing.

Will report back after more testing.

Not the first time you have waded in and lent a hand, much appreciated.

Jb




On 24 September 2010 12:08, Jack <jack at rybn.org> wrote:

> Try this patch and abstraction and use small soundfiles and movies to
> test.
> I don't know which video codec is better on Windows for your patch.
>
> Le jeudi 23 septembre 2010 à 22:36 +0100, J bz a écrit :
> > Hi Benjamin,
> >
> > Thanks for that, I will check it out.
> >
> > Jack,
> >
> > The machine I was testing with today was very souped-up and the [dsp]
> > object never got over 25%.
> >
> > I don't know if this would make a difference but the avi's are
> > slightly longer than the audio, if the audio is driving the sync is it
> > possible that that could cause the crashes?  Also audio is 32bit
> > floating point, if that could make a difference?
> >
> > Still somewhat unsure about the best way of using the abstraction, if
> > as I thought, to use 3 files I need 3 gemheads, how can I use 1
> > abstraction that contains a single gemhead?  That was the impulse to
> > use three different files.  Then if I'm using 3 different files, why
> > do I need to use $0, apart from good coding practice??
> You needn't $0 in your patch but it is a good practice if you want to
> send variables in local.
> In your subpatch you use '$0-frame' to send the number of frame of your
> movies. The problem is all your receive $0-frame will receive the value
> of the 3 movies.
> So i remove these objects (heve a look inside the subpatch).
> ++
>
> Jack
>
>
> >
> > Guess I'm thinking aloud here.
> >
> > With the first version that I made, all the files load fine and play,
> > though there is now no sync now I stopped using [readanysf~].  S'pose
> > one of the joys of pd is that there are umpteen ways of skinning any
> > particular feline, though I really don't have the time to be starting
> > from scratch again with this.
> >
> > I'm going to make the audio 16b and trim the avi's so they are the
> > same length as the audio.
> >
> > Otherwise I'm really unsure what's going on.... This whole codec thing
> > is a bloody nightmare.
> >
> > Will try again tomorrow.
> >
> > Cheers,
> >
> > Jb
> >
> >
> >
> > On 23 September 2010 17:51, benjamin 01xy <benjah at free.fr> wrote:
> >         hello,
> >
> >         for audio, sfread2~ in moonlib worked well for me to scratch
> >         audio/video synchro, I think it is cross plateform
> >         https://wiki.puredata.info/en/sfread2~<https://wiki.puredata.info/en/sfread2%7E>
> >
> >         ++Benjamin
> >
> >         J bz a écrit :
> >
> >
> >                 Avi's are 10fps mjpeg recoded in avidemux.
> >
> >                 Audio 44.1 wav in audacity
> >                 All files play fine on the windows computer on their
> >                 own.  I do get audio and one video, which works great.
> >
> >                 They also play fine in my earlier patch when I was
> >                 first experimenting with GEM and video.  I went the
> >                 Neupert way because I wanted more control.
> >
> >                 Other problem is that my ancient laptop wont come
> >                 anywhere near running the patch, which is why I'm at a
> >                 friends house.
> >
> >                 Aargh, this is bad, supposed to hand this in tomorrow.
> >
> >                 I have to go for a few hours but will be back later.
> >                  Back at my friends in the morning but will be online
> >                 again in a few hours.
> >
> >                 Attached is my original patch too.
> >
> >                 What I want is the ability to scrub audio and video
> >                 but something that works.  Obviously.
> >                 I was using [redanysf~] but the work needs to be seen
> >                 on windows and mac and readanysf doesn't seem to work
> >                 on windoze.
> >
> >                 I guess the most frustrating thing is that I have
> >                 spent all afternoon wrestling with something that
> >                 seems to be working on other computers. I added the
> >                 [set( message as I have been trying anything I could
> >                 think of.
> >
> >                 Thanks again,
> >
> >                 Jb
> >
> >
> >
> >
> > _______________________________________________
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>
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