[PD] pix_video v4l

[august]

Hey,

	I have a schleptop with a built-in camera (lenovo t400).  Xawtv works
	great, but I cannot get pix_video to start.

	When I start it (trying out lots of different options), it says:
	
	VIDIOCSCHAN: Invalid argument



	Anyone have an idea how to fix Pixes/videoV4L.cpp  so that it makes
	the right ioctls?  

	thanks -august.

	Here is my v4linfo:

	

### v4l2 device info [/dev/video0] ###
general info
    VIDIOC_QUERYCAP
	driver                  : "uvcvideo"
	card                    : "Integrated Camera"
	bus_info                : "usb-0000:00:1a.7-6"
	version                 : 0.1.0
	capabilities            : 0x4000001 [VIDEO_CAPTURE,STREAMING]

standards

inputs
    VIDIOC_ENUMINPUT(0)
	index                   : 0
	name                    : "Camera 1"
	type                    : CAMERA
	audioset                : 0
	tuner                   : 0
	std                     : 0x0 []
	status                  : 0x0 []

video capture
    VIDIOC_ENUM_FMT(0,VIDEO_CAPTURE)
	index                   : 0
	type                    : VIDEO_CAPTURE
	flags                   : 0
	description             : "YUV 4:2:2 (YUYV)"
	pixelformat             : 0x56595559 [YUYV]
    VIDIOC_G_FMT(VIDEO_CAPTURE)
	type                    : VIDEO_CAPTURE
	fmt.pix.width           : 640
	fmt.pix.height          : 480
	fmt.pix.pixelformat     : 0x56595559 [YUYV]
	fmt.pix.field           : NONE
	fmt.pix.bytesperline    : 1280
	fmt.pix.sizeimage       : 614400
	fmt.pix.colorspace      : unknown
	fmt.pix.priv            : 0

controls
    VIDIOC_QUERYCTRL(BASE+0)
	id                      : 9963776
	type                    : INTEGER
	name                    : "Brightness"
	minimum                 : -128
	maximum                 : 127
	step                    : 1
	default_value           : 0
	flags                   : 0
    VIDIOC_QUERYCTRL(BASE+1)
	id                      : 9963777
	type                    : INTEGER
	name                    : "Contrast"
	minimum                 : 0
	maximum                 : 100
	step                    : 1
	default_value           : 0
	flags                   : 0
    VIDIOC_QUERYCTRL(BASE+2)
	id                      : 9963778
	type                    : INTEGER
	name                    : "Saturation"
	minimum                 : 0
	maximum                 : 100
	step                    : 1
	default_value           : 0
	flags                   : 0
    VIDIOC_QUERYCTRL(BASE+3)
	id                      : 9963779
	type                    : INTEGER
	name                    : "Hue"
	minimum                 : -20
	maximum                 : 20
	step                    : 1
	default_value           : 0
	flags                   : 0

### video4linux device info [/dev/video0] ###
general info
    VIDIOCGCAP
	name                    : "Integrated Camera"
	type                    : 0x1 [CAPTURE]
	channels                : 1
	audios                  : 0
	maxwidth                : 1280
	maxheight               : 1024
	minwidth                : 48
	minheight               : 32

channels
    VIDIOCGCHAN(0)
	channel                 : 0
	name                    : "Camera 1"
	tuners                  : 0
	flags                   : 0x0 []
	type                    : CAMERA
	norm                    : 0

tuner

audio

picture
    VIDIOCGPICT
	brightness              : 32382
	hue                     : 32768
	colour                  : 0
	contrast                : 0
	whiteness               : 0
	depth                   : 16
	palette                 : YUYV

buffer

window
    VIDIOCGWIN
	x                       : 0
	y                       : 0
	width                   : 640
	height                  : 480
	chromakey               : 0
	flags                   : 0