V4L2CTL
Andre Bella
scancool at yahoo.com
Tue Feb 12 15:22:01 PST 2013
i just did
:
# v4l2-ctl -l
tfp401_open: usage 1
vidioc_g_ctrl
error 22 getting ctrl Brightnessvidioc_g_ctrl
vidioc_g_ctrl
error 22 getting ctrl Contrast
vidioc_g_ctrl
vidioc_g_ctrling ctrl Saturation
error 22 getting ctrl Hue
error 22 getting ctrl Volume
#
could those be the problem to give out this error:
# gst-launch v4l2src device=/dev/video0 ! videoscale! video/x-raw-yuv,width=800,
height=600 ! ffmpegcolorspace ! jpegenc ! tcpserversink host=192.168.0.103 port=
5000
Setting pipeline to PAUSED ...tfp401_open: usage 1
vidioc_reqbufs
case VIDIOC_REQBUFS
allocate_frames: 800x600: 2 frames of 720000 bytes each
0: 88000000: virt de400000: size 0xafc80, page 0xb0000
1: 880b0000: virt de4b0000: size 0xafc80, page 0xb0000
vidioc_streamon:d7215b40
enabling camera
init_csi: 800x600 +336+42
init channel fffffc0 for csi 0
mxc_ipu mxc_ipu: IPU Error - IPU_INT_STAT_5 = 0x00000001
mxc_ipu mxc_ipu: IPU Error - IPU_INT_STAT_10 = 0x00000001
init channel buffer fffffc0
enable_camera: forcing NV12 output
enabling channel fffffc0
feed_frames: queue buffer 0
feed_frames: queue buffer 1
vidioc_streamon: enabled csi
Pipeline is live and does not need PREROLL ...
WARNING: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Could not get'
Additional debug info:
v4l2src_calls.c(235): gst_v4l2src_set_capture (): /GstPipeline:pipeline0/GstV4l:
system error: Invalid argument
Setting pipeline to PLAYING ...
New clock: GstSystemClock
--- On Tue, 2/12/13, Andre Bella <scancool at yahoo.com> wrote:
From: Andre Bella <scancool at yahoo.com>
Subject: Re: V4L2CTL
To: "Discussion of the development of and with GStreamer" <gstreamer-devel at lists.freedesktop.org>
Date: Tuesday, February 12, 2013, 4:12 PM
it does work with VLC but not with gstreamer because of the missing v4l2ctl
# v4l2-ctl --all
tfp401_open: usage 1
Driver Info (not using libv4l2):
Driver name : tfp401
Card
type : tfp401
Bus info :
Driver version:
0.1.0
Capabilities : 0x05000001
Video
Capture
Read/Write
Streaming
Format Video Capture:
Width/Height :
800/600
Pixel Format : 'YUYV'
Field :
Interlaced
Bytes per Line: 1600
Size Image :
960000
Colorspace : Unknown (00000000)
#
I'm not sure what else could it be missing, this is the driver
https://github.com/scancool/linux-src/blob/master/drivers/media/video/boundary/tfp401_sensor.c
--- On Tue, 2/12/13, pfarmer <flacone at gmx.de> wrote:
From: pfarmer <flacone at gmx.de>
Subject: Re: V4L2CTL
To: gstreamer-devel at lists.freedesktop.org
Date: Tuesday, February 12, 2013, 3:51 PM
Does the v4l2 do work with your camera at all? Or does the camera work at
all?
For instance: does the program qv4l2 give any images? Or does $v4l2-ctl -L
give you any results?
(programs are in the packages: qv4l2 and v4l-utils)
--
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