[PD] More pdp blues

Yves Degoyon ydegoyon at free.fr
Tue May 4 15:46:38 CEST 2004

Ian Smith-Heisters wrote:

>I've got PDP and PiDiP working well now. I'm using a webcam stream on one place on a pdp_canvas, recording it,
>and playing it via pdp_qt at other places on the canvas. This works well, but if I try to run both the stream
>and recorded .mov I get a steady stream of pdp_drops, memory usage goes through the roof, and brings everything
>to a grinding halt or makes a segmentation fault. I read this in the archives:
>On tor, 2003-03-25 at 11:59, Yves Degoyon wrote:
>>that's perfectly normal, this behaviour you get :
>>that's because PiDiP objects do not support grey scale images,
>>you have to pass yuv12 packets to them and, then, eventually,
>>turn the result into grey images with "pdp_grey".
no,this is obsolete now, all packets are converted internally.

>Is this the same problem? If so, how can I convert the stream to yuv12 before it gets to pdp_rec~? Should I
>maybe be using pdp_yqt instead of pdp_qt?
this, yes, it's lighter.

>I have pdp in its own thread, a [block~ 131072 8] which doesn't seem to help, and memory usage set to 100 megs
it's not so much, especially for the canvas.

>Problem is, instead of managing the memory as I'd hoped, it just exits when it goes over that limit. I am
>trying to loop the video with pdp_qt 
there is a 'loop' message to pdp_qt or pdp_yqt for that purpose.

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