tags 561553 upstream

"B. Bogart" <b...@ekran.org> writes:

> When trying to run the same ffmpeg command I get an identical segfault, 
> always happening around frame 214xx. Remeber all frames are simply 
> links that point to the attached jpeg.
> This happens both in the lenny ffmpeg, and the ffmpeg included in 
> debian multimedia.

this is a good indication that this bug is also present in current
trunk, i.e., this bug needs to be confirmed and upstreamed.

> I just installed the ffmpeg-dbg package which gives the following in 
> gdb:
> Program received signal SIGSEGV, Segmentation fault.
> [Switching to Thread 0xf739f6c0 (LWP 12337)]
> 0xf79eecb0 in get_pixels_mmx (block=0x9170bf0, pixels=0x0, 
> line_size=336)
>     at 
> /build/siretart-ffmpeg-debian_0.svn20080206-18-i386-ZyxKlX/ffmpeg-debian-0.svn20080206-18/libavcodec/i386/dsputil_mmx.c:225
> 225   

Just a try: please disable your /usr/lib/i686/cmov/ directory (e.g., by
renaming). If this causes the symptom to disappear, then the defect is in
the hand written assembler in i386/dsputil_mmx.c

Reinhard Tartler, KeyID 945348A4

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