Red Hat Bugzilla – Bug 477183
dvgrab hangs when no DV payload is found
Last modified: 2014-08-31 19:29:05 EDT
Created attachment 327451 [details]
Patch from upstream cvs commit revision 1.6 on v4l2reader.cc
Description of problem:
dvgrab can capture from a USB Video Class (UVC) device that supports DV via the command line option "-V" or "-v4l2".
As documented in the man page, that works only with devices that support DV (such as the ones listed on http://linux-uvc.berlios.de/).
Unfortunately, if no DV data is found in the stream, dvgrab will hang.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Plug a webcam supported by uvcvideo (one that does not do DV otherwise it should work)
2. Try to capture with "dvgrab -V"
dvgrab hangs and cannot be interrupted oither by a kill -9 from another terminal/console.
dvgrab display an error and exits cleanly.
This is bug#2337246 upstream:
Fixed by this patch
This request was evaluated by Red Hat Product Management for
inclusion, but this component is not scheduled to be updated in
the current Red Hat Enterprise Linux release. If you would like
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An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
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