From: Christophe Lermytte <v4l@lermytte.be>
To: video4linux-list@redhat.com
Subject: O511 pixel format: what is it?
Date: Thu, 03 Dec 2009 15:22:11 +0100 [thread overview]
Message-ID: <1259850131.3811.6.camel@localhost> (raw)
Hello,
Although I have no experience with v4l, I find myself in the situation
of having to grab frames off an old webcam.
The problem is that I don't seem to have any media player that knows how
to handle the adverted pixel format "O511". I seem to remember being
able to use it with mplayer and v4l1 though. What do I do next?
Regards,
Christophe L.
FYI: I am running 2.6.32 with gspca_main and gspca_ov519 loaded. The
device itself is identified as: "Bus 005 Device 002: ID 05a9:a511
OmniVision Technologies, Inc. OV511+ Webcam".
The v4l2 device info part is
### v4l2 device info [/dev/video0] ###
general info
VIDIOC_QUERYCAP
driver : "ov519"
card : "USB Camera (05a9:a511)"
bus_info : "usb-0000:00:1d.3-1"
version : 2.7.0
capabilities : 0x5000001 [VIDEO_CAPTURE,READWRITE,STREAMING]
standards
inputs
VIDIOC_ENUMINPUT(0)
index : 0
name : "ov519"
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 : "O511"
pixelformat : 0x3131354f [O511]
VIDIOC_G_FMT(VIDEO_CAPTURE)
type : VIDEO_CAPTURE
fmt.pix.width : 640
fmt.pix.height : 480
fmt.pix.pixelformat : 0x3131354f [O511]
fmt.pix.field : NONE
fmt.pix.bytesperline : 640
fmt.pix.sizeimage : 614400
fmt.pix.colorspace : JPEG
fmt.pix.priv : 0
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
VIDIOC_QUERYCTRL(BASE+2)
id : 9963778
type : INTEGER
name : "Color"
minimum : 0
maximum : 255
step : 1
default_value : 127
flags : 0
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reply other threads:[~2009-12-03 14:23 UTC|newest]
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