[Gridflow-dev] problems with videodev

Alexandre Castonguay acastonguay at artengine.ca
Wed Mar 28 15:43:51 EDT 2007


Hi folks,

We're setting up gf on a new machine and videodev produces these errors. 
It seems that for one thing, 'mmap' is enabled by default?  The default
'bttv' button in the last version of [#camera] was helpful, why was it
removed?

Cheers,

Alexandre

kubuntu edgy 6.10
amd x2


[VideoCapability] name=BT878 video ( *** UN type:CAPTURE | TUNER | OVERLAY
| CLIPPING | SCALES channels=4 audios=1 maxsize=(480 768) minsize=(32 48)
[VideoPicture] brightness=32768 hue=32768 contrast=33791 whiteness=0
depth=24 palette=RGB24\;
palette 4 supported
[VideoChannel] channel=0 name=Television tuners=1 flags:TUNER | AUDIO
type=0x0001 norm=1
[VideoTuner] tuner=0 name=Television rangelow=0 rangehigh=2147483647
flags:PAL | NTSC | SECAM mode=NTSC\; signal=65535
error: ioctl VIDIOCPWCGAWBSPEED: Invalid argument
error: ioctl VIDIOCPWCGAWBSPEED: Invalid argument
error: ioctl VIDIOCPWCGAWB: Invalid argument
error: ioctl VIDIOCPWCGAWB: Invalid argument
error: ioctl VIDIOCPWCGAWB: Invalid argument
error: ArgumentError: mmap: Invalid argument
format/videodev.c.fcs:321:in `void FormatVideoDev::alloc_image(int, Ruby*)'
/usr/local/lib/pd/extra/gridflow/format/main.rb:216:in `alloc_image'
/usr/local/lib/pd/extra/gridflow/format/main.rb:216:in `_0_bang'
... you might be able to track this down from the Find menu.

(bang [#camera]) :
error: ArgumentError: mmap: Invalid argument
format/videodev.c.fcs:321:in `void FormatVideoDev::alloc_image(int, Ruby*)'
/usr/local/lib/pd/extra/gridflow/format/main.rb:216:in `alloc_image'
/usr/local/lib/pd/extra/gridflow/format/main.rb:216:in `_0_bang'

(select 'transfer read') :
transfer read
error: ArgumentError: error reading: Input/output error
format/videodev.c.fcs:457:in `void FormatVideoDev::frame(int, Ruby*)'
/usr/local/lib/pd/extra/gridflow/format/main.rb:216:in
`GridFlow::FormatVideoDev#frame'
/usr/local/lib/pd/extra/gridflow/format/main.rb:216:in `_0_bang'






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