[GnomeMeeting-list] webcam works with other applications like xawtv but not with GnomeMeeting - request help
- From: Jeff Collins <jgcc pacbell net>
- To: gnomemeeting-list gnome org
- Cc: Jeff Collins <jgcc pacbell net>
- Subject: [GnomeMeeting-list] webcam works with other applications like xawtv but not with GnomeMeeting - request help
- Date: Wed, 16 Oct 2002 15:03:23 -0700
I have a generic PC with a 350MHz PII (Asus P2B) which works fine with
xawtv and camserv.
The video capture card is an early Hauppage WinTV PCI card:
name : BT878(Hauppauge (bt878))
type :
VID_TYPE_CAPTURE|VID_TYPE_TUNER|VID_TYPE_TELETEXT|VID_TYPE_OVERLAY
hardware : 0x1
Bus 0, device 9, function 0:
Multimedia video controller: Brooktree Corporation Bt878 (rev 2).
IRQ 7.
Master Capable. Latency=32. Min Gnt=16.Max Lat=40.
Prefetchable 32 bit memory at 0xe3800000 [0xe3800fff].
Bus 0, device 9, function 1:
Multimedia controller: Brooktree Corporation Bt878 (rev 2).
IRQ 7.
Master Capable. Latency=32. Min Gnt=4.Max Lat=255.
Prefetchable 32 bit memory at 0xe3000000 [0xe3000fff].
Bus 0, device 10, function 0:
IRQ 7 printer services are disabled in the BIOS of the machine.
My SoundBlaster 16 is on IRQ 5, which is reserved for ISA. Interrupts are:
# cat interrupts
CPU0
0: 9918015 XT-PIC timer
1: 6765 XT-PIC keyboard
2: 0 XT-PIC cascade
5: 271 XT-PIC soundblaster
7: 4976 XT-PIC usb-uhci, bttv
8: 1 XT-PIC rtc
10: 288141 XT-PIC eth0
11: 35471 XT-PIC aic7xxx
12: 102642 XT-PIC PS/2 Mouse
I have an NTSC video camera plugged into the composite video port of the
TV card. The TV tuner on the card does not appear to work, but I do not
need to watch TV. At the bottom of this message I have included the
entire camserv.cfg file which works fine. The description of the
ccd camera from Pixera is at
pxg-200nd-st
<http://www.pixera.com/pixeracatalog/pxg-200nd-st/pxg-200nd-st.htm>
http://www.pixera.com/pixeracatalog/pxg-200nd-st/pxg-200nd-st.htm
When I bring up GnomeMeeting and try to watch the video feed from
the camera, I get squiggly lines in the top 1/4 of the rectangle,
and the error message
"Error while opening video device , channel 1.
A test image will be transmitted.
Error while opening the device."
This happens whether I bring up gnomemeeting under the default
RedHat Gnome desktop or under fvwm2, which I prefer.
Here is the /dev/video* special device file system:
[root shasta jeffco]# ls -la /dev/vid*
crw------- 1 jeffco root 81, 0 Aug 30 16:31 /dev/video0
crw------- 1 jeffco root 81, 1 Aug 30 16:31 /dev/video1
crw------- 1 jeffco root 172, 0 Aug 30 16:31 /dev/video1394
crw------- 1 jeffco root 81, 2 Aug 30 16:31 /dev/video2
crw------- 1 jeffco root 81, 3 Aug 30 16:31 /dev/video3
/dev/video:
total 124
drwxr-xr-x 2 root root 4096 Oct 13 09:34 .
drwxr-xr-x 20 root root 118784 Oct 16 08:04 ..
crw------- 1 jeffco root 10, 204 Aug 30 16:31 em8300
crw------- 1 jeffco root 10, 206 Aug 30 16:31 em8300_ma
crw------- 1 jeffco root 10, 205 Aug 30 16:31 em8300_mv
crw------- 1 jeffco root 10, 207 Aug 30 16:31 em8300_sp
Preferences for video under Gnomemeeting are:
As far as software goes, I have a stock install of RedHat 8.0, and
I am running gnomemeeting-0.93.1-4.i386.rpm from disk 3 of the Redhat 8.0
5 disk set, as well as pwlib-1.3.3-5.i386.rpm and
openh323-1.9.3-4.i386.rpm: from the same disk.
Since I could not find the SDLlib on the RedHat set, I downloaded
SDL-1.2.5-1.i386.rpm from http://www.libsdl.org/download-1.2.php.
All rpm installs occured without error.
I would be very grateful for any help.
Jeff Collins
jgcc pacbell net
=============================================================================
Here is my /usr/local/share/camserv.cfg file:
# video_basic: The 'basic' color-changing video module.
[video_basic]
path /usr/local/lib/libvideo_basic.so
# video_v4l_bttv: Example of a common BTTV module for video4linux.
# port 0 == TV, port 1 = Composite 1, port 2 = Composite 2
# frequency == is the channel frequency for the TV
# autobright == 0 turns off autobrightness adjusting, otherwise it adjusts
# the brightness of the picture every 'autobright' frames.
# brightmean == The mean pixel value that is the 'goal' of the autobright.
# (0->255)
# brightx1->y2 == (x1,y1) top left coords, and (x2,y2) bottom right coords
# of a rectangle of which to take the average pixel value.
# this is then used in calculating the mean to adjust the
# brightness of the image.
# mode == the video norm to use: 0 == PAL, 1 == NTSC, 2 == SECAM, 3 == AUTO
# color,hue,contrast,brightness,whiteness = 0->60000, representing
# the value of each component.
[video_v4l_bttv]
path /usr/local/lib/libvideo_v4l.so
device_path /dev/video0
port 1
mode 1
frequency 0
color 30000
hue 30000
contrast 18000
brightness 30000
whiteness 20000
autobright 1
brightmean 128
brightx1 0
#brighty1 448
brighty1 0
#brightx2 0
brightx2 448
brighty2 336
#brightx1 0
#brighty1 448
#brightx2 0
#brighty2 336
# FreeBSD BTTV driver:
# port 0 = Video
# 1 = Tuner
# video_basic: The 'basic' color-changing video module.
[video_basic]
path /usr/local/lib/libvideo_basic.so
# video_v4l_bttv: Example of a common BTTV module for video4linux.
# port 0 == TV, port 1 = Composite 1, port 2 = Composite 2
# frequency == is the channel frequency for the TV
# autobright == 0 turns off autobrightness adjusting, otherwise it adjusts
# the brightness of the picture every 'autobright' frames.
# brightmean == The mean pixel value that is the 'goal' of the autobright.
# (0->255)
# brightx1->y2 == (x1,y1) top left coords, and (x2,y2) bottom right coords
# of a rectangle of which to take the average pixel value.
# this is then used in calculating the mean to adjust the
# brightness of the image.
# mode == the video norm to use: 0 == PAL, 1 == NTSC, 2 == SECAM, 3 == AUTO
# color,hue,contrast,brightness,whiteness = 0->60000, representing
# the value of each component.
[video_v4l_bttv]
path /usr/local/lib/libvideo_v4l.so
device_path /dev/video0
port 1
mode 1
frequency 0
color 30000
hue 30000
contrast 18000
brightness 30000
whiteness 20000
autobright 1
brightmean 128
brightx1 0
#brighty1 448
brighty1 0
#brightx2 0
brightx2 448
brighty2 336
#brightx1 0
#brighty1 448
#brightx2 0
#brighty2 336
# FreeBSD BTTV driver:
# port 0 = Video
# 1 = Tuner
# Channel Sets:
# nabscst 1
# cableirc 2
# cablehrc 3
# weurope 4
# jpnbcst 5
# jpncable 6
# xussr 7
# australia 8
[video_fbsd_bttv]
path /usr/local/lib/libvideo_fbsd_bttv.so.0.0
port 1
width 448
height 336
autobright 100
#brightness 0
#chroma 180
#contrast 1000
channelset 2
channel 60
[video_v4l_qcam]
path /usr/local/lib/libvideo_v4l.so
device_path /dev/video1
port 0
color 30000
hue 30000
contrast 30000
brightness 30000
whiteness 30000
autobright 0
[jpg_filter]
path /usr/local/lib/libjpg_filter.so
quality 40# text_filters: Text filters are used to provide text
on your webcam
# bg,fg == #RRGGBB if RGB camera, #CC if B&W camera,else
'transparent'
# x,y == Coordinates for the text
# mangle == 0 turns off mangling of the 'text', 1 turns it on
# text == Text to display. If mangling == 1, special metachars
# such as '$X' will be expanded -- see date(1) for lots of
# flags
# fontname == 6x11 or 8x8 for the fontsize.
[hello_world_banner]
path /usr/local/lib/libtext_filter.so
text Hello World
bg #000000
fg #ffffff
x 0
y 0
mangle 0
fontname 6x11
[time_stamp]
path /usr/local/lib/libtext_filter.so
text Time: $X
bg #000000
fg #ffffff
x 0
y 11
mangle 1
fontname 8x8
[static_filter]
path /usr/local/lib/librand_filter.so
num_perline 20
coloredpix 0
#
# You can add the imlib2_filter to your filters list to display pictures
# over your own, or small regions, or whatever your heart desires.
[imlib2_filter]
path /usr/local/lib/libimlib2_filter.so
file /tmp/my_nasty_picture.png
x 0
y 0
##########################################
# Begin Fixed Sections #
##########################################
# socket parameters:
# listen_port = port the camserv program listens on
# max_frames = Maximum # of frames to send to the client before
# closing the connection (0 disables)
# max_bytes = Maximum # of bytes to send to a client before
# closing the connection (0 disables)
# max_seconds = Maximum # of seconds a client can be connected before
# being closed (0 disables)
[socket]
listen_port 9192
max_frames 0
max_bytes 0
max_seconds 0
[filters]
num_filters 2
filter0_section time_stamp
filter1_section jpg_filter
video_section video_v4l_bttv
width 448
height 336
maxfps 0
#maxfps 1
memhack 1
[main]
# To do a single time invocation of the output from the camserv,
# use output_snapfile which designates the output location, and
# output_presnaps to take a number of pictures before finally outputting
# the final image.
#output_snapfile foo.jpg
#output_presnaps 100
I have configured GnomeMeeting to use /dev/video0 which is what works with
xawtv. I have selected NTSC.
Thanks again,
Jeff Collins
# [video] - This section is devoted to all things dealing with the pictures
# taken by the input video module. These are general things which
# should be used by all video modules.
[video]
Video device /dev/video0
Video channel 1
Video size small
Video format NTSC
Video codec is unchanged from the default.
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