[libav-bugs] [Bug 276] Crash on 64-bit Windows with SSSE3/AVX capable CPUs

bugzilla-daemon at aruru.libav.org bugzilla-daemon at aruru.libav.org
Sun Apr 29 17:06:01 CEST 2012


https://bugzilla.libav.org/show_bug.cgi?id=276

Ronald S. Bultje <rsbultje at gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |rsbultje at gmail.com

--- Comment #6 from Ronald S. Bultje <rsbultje at gmail.com> 2012-04-29 17:06:01 CEST ---
Since report says it's with both divx and h264, and this backtrace goes into
imdct_half -> fft, I'm guessing this is a bug either in the AAC decoder or in
the IMDCT/FFT backend, possibly Win64 only. Report also says that it's only
AVX, not SSSE3 or lower, so potentially the bug is in some AVX+Win64-specific
code in libavcodec/x86/fft_mmx.asm, such as POSROTATESHUF_AVX, or some generic
Win64/AVX stuff in libavutil/x86/x86inc.asm.

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