[MPlayer-users] Bug Report: jpeg to avi is broken

[Guillaume POIRIER]

Hello,

On 6/27/05, Philip Walden <pwaldenlinux at pacbell.net> wrote:
> Reimar Döffinger wrote:
> 
> >Hi,
> >On Sun, Jun 26, 2005 at 09:17:20PM -0700, Philip Walden wrote:
> >
> >
> >>(gdb) bt
> >>#0  0x08188d72 in hScale_MMX2 (dst=Cannot access memory at address
> >>0xfffffd88
> >>) at swscale_template.c:2048
> >>Cannot access memory at address 0xfffffd80
> >>
> >>
> >
> >Reminds me of a similar problem I have seen recently. Can you try to
> >compile with gcc 3.4.x?
> >
> >
> I am on Redhat 9. I cannot find a gcc 3.4.x for that distribution.
> 
> I had not planned to upgrade to Fedora for awhile.
> 
> Since the segmentation fault is only on the current CVS, would not it be
> easier to debug the 1.0pre7 release which does not fault?
> 
> I have been able to get 1.0pre7 under gdb. the demux_mf.c seems to be
> opening the the jpeg files in correct sequence. I suspect that there is
> some wrong in decode_video() (or elsewhere?) with frame calculations. So
> that it is always decoding a bad buffer of data.

If you experience the same problem as all the other users of gcc3, the
problem is likely to come from postproc/swscale_template.c so your
best bet is to revert all the commits before the one I made to support
gcc4 and see what happen.

Guillaume
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