[FFmpeg-trac] #10549(avcodec:reopened): Segfault when decoding aac

[FFmpeg]

#10549: Segfault when decoding aac
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             Reporter:  Abbott       |                    Owner:  (none)
                 Type:  defect       |                   Status:  reopened
             Priority:  normal       |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  aac avcodec  |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Changes (by Sam James):

 * cc: Sam James (added)
 * status:  closed => reopened
 * resolution:  invalid =>

Comment:

 No, this isn't invalid, it's just an unusual configuration (and not really
 a necessary one, but still). BtbN and I ended up discussing it in #gcc as
 well.

 The issue is that 16 byte alignment is assumed with --disable-avx but with
 some -march implying avx + the attributes used for 32, gcc assumes 32
 elsewhere too.

 (On the Gentoo side, we're going to likely always build the SIMD support
 and rely on runtime detection as BtbN advised, but still.)
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/10549#comment:6>
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