#8654: Crash with kmsgrab, vaapi_scale and hwdownload
-------------------------------------+-------------------------------------
Reporter: | Type: defect
0x53ee71ebe11e |
Status: new | Priority: normal
Component: ffmpeg | Version: git-
| master
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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While trying to figure out another problem (#8377, may or may not be
related), I came upon this crash:
{{{
ffmpeg_g -v 9 -loglevel 99 -f kmsgrab -framerate 60 -i - -map 0 -vf
'hwmap=derive_device=vaapi,scale_vaapi=960:540,hwdownload,format=bgr0'
-c:v h264 -preset veryfast /tmp/output.mp4
}}}
I changed the command line from over in that other ticket. The idea was to
skip the hardware encoder and use the software encoder instead after
scaling down the source on the gpu. And I was greeted with a crash. See
attachement.
Leaving out the scale_vaapi filter works without crash.
I am not sure if using scale_vaapi without using the vaapi encoder
afterwards is even a valid thing to do, but it shouldn't crash no matter
what.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/8654>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker
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