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

[Jack]

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~
>         
>         ++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
>                 
>         
>         
> 
> _______________________________________________
> Pd-list at iem.at mailing list
> UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list

-------------- next part --------------
A non-text attachment was scrubbed...
Name: pix_buffer_filmopen.pd
Type: application/x-extension-pd
Size: 1750 bytes
Desc: not available
URL: <http://lists.puredata.info/pipermail/pd-list/attachments/20100924/c6fa6f02/attachment.bin>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: av_plyr3.6a.pd
Type: application/x-extension-pd
Size: 9692 bytes
Desc: not available
URL: <http://lists.puredata.info/pipermail/pd-list/attachments/20100924/c6fa6f02/attachment-0001.bin>