From: Gilles Curchod <mailing@glorfindel.ch>
To: "video4linux-list@redhat.com" <video4linux-list@redhat.com>
Subject: V4L error on Linux 2.6.22
Date: Mon, 24 Nov 2008 11:41:30 +0100 [thread overview]
Message-ID: <492A84DA.4080409@glorfindel.ch> (raw)
Hi,
As part of my diploma project, I'd like to set a demonstration with two
i.MX31 boards: one with a webcam sending a UDP/RTP stream video and the
other getting this stream and displaying it to the framebuffer.
I have a Logitech Webcam (id 046d:08ad). The i.MX31 boards run Linux
2.6.22.6.
I installed the GSPCA (gspcav1-20071224) drivers and I god the following
message while starting the GSPCA module:
/imx/sandbox/drivers/gspcav1-20071224/gspca_core.c: USB GSPCA camera
found.(ZC3XX)
/imx/sandbox/drivers/gspcav1-20071224/gspca_core.c:
[spca5xx_probe:4275] Camera type JPEG
/imx/sandbox/drivers/gspcav1-20071224/Vimicro/zc3xx.h:
[zc3xx_config:669] Find Sensor HV7131R(c)
usb_endpoint usbdev1.3_ep81: ep_device_release called for
usbdev1.3_ep81
usb_endpoint usbdev1.3_ep82: ep_device_release called for
usbdev1.3_ep82
/imx/sandbox/drivers/gspcav1-20071224/gspca_core.c:
[spca5xx_getcapability:1249] maxw 640 maxh 480 minw 160 minh 120
gspca 1-1:1.1: usb_probe_interface
gspca 1-1:1.1: usb_probe_interface - got id
gspca 1-1:1.2: usb_probe_interface
gspca 1-1:1.2: usb_probe_interface - got id
usbcore: registered new interface driver gspca
Then I use a self-made GStreamer application to get the device's image
and send the stream via UDP/RTP.
The equivalent gst-launch command is:
gst-launch-0.10 -v v4lsrc !
video/x-raw-yuv,format='(fourcc)'I420,width='(int)'320,height='(int)'240,framerate='(fraction)'25/1
! ffmpegcolorspace ! ffenc_mpeg4 ! rtpmp4vpay ! udpsink
host=10.192.51.44 port=5000
While I do this on my Ubuntu 8.04, it works fine, but on my embedded
system, I got the following output:
/imx/sandbox/drivers/gspcav1-20071224/gspca_core.c:
[spca5xx_set_light_freq:1932] Sensor currently not support light fre.
/imx/sandbox/drivers/gspcav1-20071224/gspca_core.c:
[gspca_set_isoc_ep:945] ISO EndPoint found 0x81 AlternateSet 7
/imx/sandbox/drivers/gspcav1-20071224/gspca_core.c:
[spca5xx_do_ioctl:2124] Bridge ZC301-2
/imx/sandbox/drivers/gspcav1-20071224/gspca_core.c:
[spca5xx_do_ioctl:2124] Bridge ZC301-2
/imx/sandbox/drivers/gspcav1-20071224/gspca_core.c: VIDIOCMCAPTURE:
invalid format (7)
Is this a V4L configuration issue?
Thank for your help.
Gilles
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next reply other threads:[~2008-11-24 10:41 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-24 10:41 Gilles Curchod [this message]
2008-11-24 10:43 ` V4L error on Linux 2.6.22 Jean-Francois Moine
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