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Re: [GnomeMeeting-list] webcam works with other applications like xawtv but not with GnomeMeeting - request help

Hi,

Are you sure that your driver and GnomeMeeting installation is up to
date?

Bt878 is supported by GnomeMeeting and pwlib.
Actually your problem seems to be a video colour format problem.
GnomeMeeting asks for YUV420P when xawtv asks for simple RGB32.

Try to know what video colour format your driver supports.

But Im pretty sure that bt878 should work in recent releases of
GnomeMeeting.

Le jeu 17/10/2002 à 00:03, Jeff Collins a écrit :
> 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.
> 
> 
> _______________________________________________
> GnomeMeeting-list mailing list
> GnomeMeeting-list gnome org
> http://mail.gnome.org/mailman/listinfo/gnomemeeting-list
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          http://www.gnomemeeting.org/
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