[PD] [PD-dev] puredata/gridflow/webcam driver=which are supported?

Mathieu Bouchard matju at artengine.ca
Sat Aug 15 20:04:19 CEST 2009

On Sat, 15 Aug 2009, Jack wrote:

>> However (and i don't know why) the examples 'frequency_mask',
>> 'nervous_video' and 'videodev_effects' in GF example crash Pd too when i
>> open them.
>> Do you know why ?
> For information, here the error in the terminal :
> error: ioctl VIDIOCSPICT: Invalid argument
> this driver is unsupported: it wants palette 8 instead of 15
> warning: no channel #0
> pd_gui: pd process exited
> Erreur de segmentation

I don't know what the segmentation fault is about, but palette #8 is YUYV, 
one of the YUV encodings of V4L1, and I don't have any camera that has 
this, so I wouldn't be able to test it directly.

I would like to have a backtrace for the segmentation fault, using GDB or 

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| Mathieu Bouchard - tél:+1.514.383.3801, Montréal, Québec

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