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

[FFmpeg]

#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):

 > Patch is not good, you killed macro.

 I couldn't use the `AV_*` macros otherwise.

 > Besides checkasm test thing is wrong if data is not 16 byte aligned, for
 16 bit input it must always be.

 You mean "2-byte aligned"? Maybe so. I don't know what use case it
 verifies. Would you like a patch that fixes the test instead?

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Ticket URL: <https://trac.ffmpeg.org/ticket/7226#comment:7>
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