[FFmpeg-trac] #7226(avfilter:new): Generic vf_blend implementation contains unaligned memory access

FFmpeg trac at avcodec.org
Wed May 23 20:38:52 EEST 2018


#7226: Generic vf_blend implementation contains unaligned memory access
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             Reporter:  Lastique    |                    Owner:
                 Type:  defect      |                   Status:  new
             Priority:  normal      |                Component:  avfilter
              Version:  git-master  |               Resolution:
             Keywords:  vf_blend    |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |
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Comment (by Lastique):

 I'm not sure it will be reproducible with `ffmpeg` command line tool
 because there are asm versions that will likely be used on modern CPUs.
 The problem is in the generic C version, which is explicitly used by the
 test. Maybe it'll reproduce if you build ffmpeg without asm optimizations.

 Having the tests not fail is important for me because running tests is a
 step in the packaging process. I wouldn't want to disable tests because of
 this problem.

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Ticket URL: <https://trac.ffmpeg.org/ticket/7226#comment:3>
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