[FFmpeg-trac] #7312(undetermined:new): crash while encoding from x11grab when source goes away
FFmpeg
trac at avcodec.org
Tue Jul 10 20:16:11 EEST 2018
#7312: crash while encoding from x11grab when source goes away
-------------------------------------+-------------------------------------
Reporter: omry | Type: defect
Status: new | Priority: normal
Component: | Version:
undetermined | unspecified
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Summary of the bug:
ffmpeg crashes when it's grabbing frames using x11grab if the source of
the frames shutsdown unexpectedly.
How to reproduce:
{{{
# Start an xvfb vistual frame buffer:
Xvfb :100 -screen 0 1600x1200x24
# Optional, run something inside:
DISPLAY=:100 xterm
# Capture frames to a file
~/build/bin/ffmpeg -f x11grab -video_size 1024x768 -i :100 -codec:v
libx264 out.mp4 -y
# Ctrl C the Xvfb process, the ffmpeg process will segfault reliably.
}}}
I initially saw it on 2.8.14-0ubuntu0.16.04.1, but reproduced after
building from the latest source from git as of July/9/2018).
Patches should be submitted to the ffmpeg-devel mailing list and not this
bug tracker.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/7312>
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