[PD] How to use /dev/video2 virtual video device in GEM

[cyrille henry]

hello,

/dev/video2 look to be a V4L device, and not V4L2.
so you have to configure pix_video to use V4L driver.
a message [driver v4l< should do it (or driver 1, or whatever number pix_video use for V4L)
then [open /dev/video2<

cyrille


Bart Koppe a écrit :
> Thanks, I now tried, funny to mention that pdp_v4l can read /dev/video2 
> (virtual video device) and pdp_v4l2 cannot!
> But I was not clear in my message i think, I just wanted to do the same 
> in GEM.
> Now I yesterday finally found out how to correctly use pdp2gem, i can 
> just use pdpv4l and use the output wherever i can.
> Baically i'm a newb in doing a bit of video/images mixing in PD.. ;)
> Cheers,
> Bart
> 
> 
> 
> 
> On 12/28/2009 06:56 PM, Pagano, Patrick wrote:
>> did you try pdpv4l2?
>>
>>
>> ________________________________________
>> From: pd-list-bounces at iem.at [pd-list-bounces at iem.at] On Behalf Of 
>> Bart Koppe [bk at a-bort.org]
>> Sent: Sunday, December 27, 2009 6:05 PM
>> To: PD list
>> Subject: [PD] How to use /dev/video2 virtual video device in GEM
>>
>> Hi,
>>
>> I use /dev/video2 to get a mjpeg live stream into PD.
>> With pix_video I can open my webcam, but when I open the virtual video
>> device (/dev/video2) i get an error, i guess todo with the fact that
>> it's not a real webcam:
>>
>> error: Cannot open '/dev/video2': 25, Inappropriate ioctl for device
>> GL: invalid enumerant--
>>
>> Is there other ways to get it fixed in GEM?
>>
>> With pdp_v4l i can open the virtual device, but I want to try it in GEM,
>> mostly because GEM is better documented, I need to add several jpeg/png
>> pictures on both sides of that stream.
>>
>>
>> Thanks..
>>
>> Bart
>>
>>
>> #N canvas 527 149 328 354 12;
>> #X obj 55 78 gemhead;
>> #X obj 55 222 rectangle 4 3;
>> #X obj 55 188 pix_texture;
>> #X obj 55 152 pix_video;
>> #N canvas 340 107 682 322 gemwin 0;
>> #X obj 102 122 tgl 15 0 \$0-gemstart \$0-gemstart empty 17 7 0 10 -262144
>> -1 -1 0 1;
>> #X obj 102 161 r \$0-gemstart;
>> #X obj 102 182 select 1 0;
>> #X msg 102 214 create \, 1;
>> #X msg 177 215 destroy;
>> #X obj 102 239 t a;
>> #X obj 318 54 inlet;
>> #X obj 318 255 gemwin;
>> #X obj 318 100 t a a;
>> #X obj 318 287 outlet;
>> #X obj 350 128 route create destroy;
>> #X obj 350 150 t b;
>> #X msg 350 172 1;
>> #X obj 390 150 t b;
>> #X msg 390 172 0;
>> #X obj 350 195 t f;
>> #X msg 350 219 set \$1;
>> #X text 118 122 rendering;
>> #X connect 1 0 2 0;
>> #X connect 2 0 3 0;
>> #X connect 2 1 4 0;
>> #X connect 3 0 5 0;
>> #X connect 4 0 5 0;
>> #X connect 5 0 8 0;
>> #X connect 6 0 8 0;
>> #X connect 7 0 9 0;
>> #X connect 8 0 7 0;
>> #X connect 8 1 10 0;
>> #X connect 10 0 11 0;
>> #X connect 10 1 13 0;
>> #X connect 11 0 12 0;
>> #X connect 12 0 15 0;
>> #X connect 13 0 14 0;
>> #X connect 14 0 15 0;
>> #X connect 15 0 16 0;
>> #X connect 16 0 0 0;
>> #X coords 0 -1 1 1 85 40 1 100 100;
>> #X restore 56 254 pd gemwin;
>> #X msg 139 114 device 2;
>> #X msg 69 114 device 0;
>> #X connect 0 0 3 0;
>> #X connect 2 0 1 0;
>> #X connect 3 0 2 0;
>> #X connect 5 0 3 0;
>> #X connect 6 0 3 0;
>>
>>
>> -----/\/\/\/\/\/\-----
>> Bart Koppe
>> bk at a-bort dot org
>> http://a-bort.org
>> -----\/\/\/\/\/\/-----
>>
>>
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>>    
>