[Telepathy] [Bug 18901] New: falls down a well if it can't capture at 640x480

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=18901

           Summary: falls down a well if it can't capture at 640x480
           Product: Telepathy
           Version: unspecified
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: stream-engine
        AssignedTo: telepathy at lists.freedesktop.org
        ReportedBy: will.thompson at collabora.co.uk


If I try to make or receive a call from Empathy, stream-engine tries to capture
from my laptop's built-in webcam at 640x480, fails to do so, and then hangs. 
This means that Empathy sits there not knowing what's going on, and the call
never works.

If I move /dev/video0 out of the way, calls in both directions work just fine.

This is the end of the debug output from telepathy-stream-engine, after which
no debug output is produced:

(telepathy-stream-engine:23584): farsight-rtp-DEBUG: AUDIO -
farsight_rtp_stream_set_sending: Setting sending on 0
** (telepathy-stream-engine:23584): DEBUG: bus_async_handler: got error from
v4l2src1: Device '/dev/video0' cannot capture at 640x480:
v4l2src_calls.c(1298): gst_v4l2src_set_capture ():
/GstPipeline:pipeline0/GstGConfVideoSrc:gconfvideosrc0/GstBin:bin2/GstV4l2Src:v4l2src1:
Tried to capture at 640x480, but device returned size 320x240 (1136 13),
destroying video pipeline
** (telepathy-stream-engine:23584): DEBUG: Closing all video streams


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