[gstreamer-bugs] [Bug 575391] New: Cannot fetch a picture (stream) from an older Philips 646 webcam.

[GStreamer (bugzilla.gnome.org)]

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  GStreamer | don't know | Ver: 0.10.22
           Summary: Cannot fetch a picture (stream) from an older Philips
                    646 webcam.
           Product: GStreamer
           Version: 0.10.22
          Platform: Other
        OS/Version: All
            Status: UNCONFIRMED
          Severity: blocker
          Priority: Normal
         Component: don't know
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: marsjanin.fm at poczta.fm
         QAContact: gstreamer-bugs at lists.sourceforge.net
     GNOME version: 2.23/2.24
   GNOME milestone: Unspecified


Please describe the problem:
Cannot fetch a picture (stream) from an older Philips 646 webcam. Under
Camorama the webcam works good. I need the camera work under gstreamer, because
the program I use (baboon; this is reverse-enginereed software to log in and
publish video and scrolling text on it on a common Polish webcam chat,
czateria.pl) uses GStreamer and v4l2.

Steps to reproduce:
1. Plug the camera in,
2. run gstreamer-properties (select right device),
3. read the output.
;)

Actual results:
/me gets nervous and try to find out what's wrong on #gstreamer  :)

Expected results:
I expect to see a video from a cam, like I can view under camorama.

Does this happen every time?
Yup, every time.

Other information:
Sure I have, several outputs.

gstreamer-properties (when starts):
http://www.nopaste.pl/a8r
Now, when sets as input 'v4l' and 'Philips 646 webcam' it hangs a while, and
outputs a graphic message window 'Video for Linux (v4l): Cannot synchronize a
resource' and in console:
'Error running pipeline 'Video for Linux (v4l)': Nie udało się
zsynchronizować zasobu. [v4lsrc_calls.c(486): gst_v4lsrc_try_capture ():
/GstPipeline:pipeline0/GstV4lSrc:v4lsrc2:
system error: Bad address]'
Now, let's try with v4l2:
There no picture window appears; there appears a little window with OK "press
OK to stop a test" and a console produces:
'(gstreamer-properties:11976): GStreamer-WARNING **: pad v4l2src4:src returned
caps which are not a real subset of its template caps'
and goes into infinite loop with message:
'libv4l2: error dequeuing buf: Bad address'
- Pressing OK stops the messages loop.

Here goes the v4l-info output:
http://www.nopaste.pl/a8t

Finally, the command:
GST_DEBUG="*:2,v4l2*:5" gst-launch 2>debug.log v4l2src ! xvimagesink
returns IN THE COMMANDLINE:
http://www.nopaste.pl/a8v
And now, the main, created above, "debug.log" file contents:
http://freefilehosting.net/download/462fi
Translation of few Polish commands there:
Ustawianie potoku na PAUZOWANIE... - Setting stream to PAUSING
Potok jest na żywo i nie wymaga PRZEWINIĘCIA... - The stream is live and does
not have to be REWINDED (?)
Ustawianie potoku na ODTWARZANIE... - Settting the stream to PLAYING
Niepowodzenie po 50 próbach. Urządzenie /dev/video0. Błąd systemowy: Bad
address - Failure after 50 tryouts. Device /dev/video0. System error: Zły
adres ;)
Ustawianie potoku na NULL... - Setting stream to NULL
ZWALNIANIE potoku... - freeing (?) a stream


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