Hi All,
I'm trying to use USB camera on Froyo 2.2.1 . I enabled v4l driver
support in kernel .
I took v4l camera patches from x86 and applied on Froyo.
Camera is working properly ( bit slow) and able to capture images
also.
Problem is not able to record video. When i press record button in
video mode camera screen is
getting freezed and timer thread( recording duration timer) is keep on
incrementing.
One more problem is Camera/Video Camera preview frame rate is low.
Following is v4l-info of my camera :
### v4l2 device info [/dev/video0] ###
general info
VIDIOC_QUERYCAP
driver : "uvcvideo"
card : "USB 2.0 Camera"
bus_info : "usb-0000:00:1d.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 : 262788743
fmt.pix.colorspace : SRGB
fmt.pix.priv : 0
controls
VIDIOC_QUERYCTRL(BASE+0)
id : 9963776
type : INTEGER
name : "Brightness"
minimum : -128
maximum : 127
step : 1
default_value : 50
flags : 0
VIDIOC_QUERYCTRL(BASE+1)
id : 9963777
type : INTEGER
name : "Contrast"
minimum : 0
maximum : 100
step : 1
default_value : 36
flags : 0
VIDIOC_QUERYCTRL(BASE+2)
id : 9963778
type : INTEGER
name : "Saturation"
minimum : 0
maximum : 100
step : 1
default_value : 30
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 : "USB 2.0 Camera"
type : 0x1 [CAPTURE]
channels : 1
audios : 0
maxwidth : 640
maxheight : 480
minwidth : 48
minheight : 32
channels
VIDIOCGCHAN(0)
channel : 0
name : "Camera 1"
tuners : 0
flags : 0x0 []
type : CAMERA
norm : 0
tuner
ioctl VIDIOCGTUNER: Invalid argument
audio
ioctl VIDIOCGAUDIO: Invalid argument
picture
VIDIOCGPICT
brightness : 45746
hue : 32768
colour : 19661
contrast : 23593
whiteness : 0
depth : 16
palette : YUYV
buffer
ioctl VIDIOCGFBUF: Invalid argument
window
VIDIOCGWIN
x : 0
y : 0
width : 640
height : 480
chromakey : 0
flags : 0
Please help me in resolving this issue.
Regards,
Sreenath
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