On Jan 17, 4:55 pm, Brian Johnson <[email protected]> wrote:
> When streaming your video what format are you using is your driver set
> for? you can find this out by typeing v4l-info at your terminal
> window.
Here's the full output for /dev/video0, do I need to be streaming when
I run v4l-info? I'm logged in remotely via ssh at the moment...
### v4l2 device info [/dev/video0] ###
general info
VIDIOC_QUERYCAP
driver : "sn9c20x"
card : "SN9C20x USB 2.0 Webcam Driver"
bus_info : "usb-0000:00:02.2-2.1"
version : 32.9.1
capabilities : 0x5000001
[VIDEO_CAPTURE,READWRITE,STREAMING]
standards
inputs
VIDIOC_ENUMINPUT(0)
index : 0
name : "Webcam"
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 : "Bayer 8bit (BGGR)"
pixelformat : 0x31384142 [BA81]
VIDIOC_ENUM_FMT(1,VIDEO_CAPTURE)
index : 1
type : VIDEO_CAPTURE
flags : 0
description : "I420 (YUV 4:2:0)"
pixelformat : 0x32315559 [YU12]
VIDIOC_ENUM_FMT(2,VIDEO_CAPTURE)
index : 2
type : VIDEO_CAPTURE
flags : 0
description : "YUYV (YUV 4:2:0)"
pixelformat : 0x56595559 [YUYV]
VIDIOC_ENUM_FMT(3,VIDEO_CAPTURE)
index : 3
type : VIDEO_CAPTURE
flags : 0
description : "JPEG (YUV 4:2:2)"
pixelformat : 0x4745504a [JPEG]
VIDIOC_G_FMT(VIDEO_CAPTURE)
type : VIDEO_CAPTURE
fmt.pix.width : 640
fmt.pix.height : 480
fmt.pix.pixelformat : 0x32315559 [YU12]
fmt.pix.field : ANY
fmt.pix.bytesperline : 960
fmt.pix.sizeimage : 460800
fmt.pix.colorspace : SRGB
fmt.pix.priv : 1
controls
VIDIOC_QUERYCTRL(BASE+0)
id : 9963776
type : INTEGER
name : "Brightness"
minimum : 0
maximum : 255
step : 1
default_value : 127
flags : 0
VIDIOC_QUERYCTRL(BASE+1)
id : 9963777
type : INTEGER
name : "Contrast"
minimum : 0
maximum : 255
step : 1
default_value : 127
flags : 0
### video4linux device info [/dev/video0] ###
general info
VIDIOCGCAP
name : "SN9C20x USB 2.0 Webcam Driver"
type : 0x1 [CAPTURE]
channels : 1
audios : 0
maxwidth : 640
maxheight : 480
minwidth : 48
minheight : 32
channels
VIDIOCGCHAN(0)
channel : 0
name : "Webcam"
tuners : 0
flags : 0x0 []
type : CAMERA
norm : 0
tuner
ioctl VIDIOCGTUNER: Invalid argument
audio
ioctl VIDIOCGAUDIO: Invalid argument
picture
VIDIOCGPICT
brightness : 32639
hue : 0
colour : 0
contrast : 32639
whiteness : 13107
depth : 12
palette : YUV420
buffer
ioctl VIDIOCGFBUF: Invalid argument
window
VIDIOCGWIN
x : 0
y : 0
width : 640
height : 480
chromakey : 0
flags : 0
--~--~---------~--~----~------------~-------~--~----~
Lets make microdia webcams plug'n play, (currently plug'n pray)
To post to this group, send email to [email protected]
Visit us online https://groups.google.com/group/microdia
-~----------~----~----~----~------~----~------~--~---
