[MPlayer-dev-eng] mencoder crash with dct motion estimation (cmp=3:subcmp=3:mbcmp=3 )

[DD DD]

Thanks
Someone has mentioned a fix for this in the ffmpeg mailing lists:
http://archives.free.net.ph/message/20060818.174139.8837f58f.en.html

The fix is not applied to trunk yet, but i applied it on my machine, and its
working fine.
Will submit a patch if its not fixed on trunk in a few days.

Dwipal

On 8/22/06, Michael Niedermayer <michaelni at gmx.at> wrote:
>
> Hi
>
> On Tue, Aug 22, 2006 at 04:30:30PM -0700, DD DD wrote:
> > On 8/3/06, Michael Niedermayer <michaelni at gmx.at > wrote:
> > >
> > >Hi
> > >
> > >On Thu, Aug 03, 2006 at 03:51:19PM -0700, DD DD wrote:
> > >> Hi
> > >> mencoder (cvs trunk 07/24/2006) is segfaulting with libavcodec if I
> use
> > >> cmp=3:subcmp=3:mbcmp=3 as motion estimation. Is there something wrong
> > >with
> > >> this ?
> > >> Surprisingly, it works if its compiled with debug on
> (--enable-debug=1)
> > >>
> > >> ./mencoder -lavfopts
> > >i_certify_that_my_video_stream_does_not_use_b_frames
> > >> -quiet -of lavf -ffourcc FLV1 -ovc lavc -lavcopts
> > >> vcodec=flv:vbitrate=256:v4mv:mbd=2:trell:cmp=6:subcmp=6:mbcmp=6  -oac
> > >> mp3lame -srate 22050 -lameopts preset=64:mode=3 ia.mov -o ia.flv
> > >>
> > >> Any ideas?
> > >
> > >* your comment says =3 the command line =6
> > >* valgrind
> > >* gdb output without symbols is better then nothing ...
> > >* which platform & compiler did you use?
> > >* try make distclean
> > >
> > >[...]
> > >
> > >--
> > >Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB
> > >
> > >In the past you could go to a library and read, borrow or copy any book
> > >Today you'd get arrested for mere telling someone where the library is
> > >_______________________________________________
> > >MPlayer-dev-eng mailing list
> > >MPlayer-dev-eng at mplayerhq.hu
> > >http://lists.mplayerhq.hu/mailman/listinfo/mplayer-dev-eng
> > >
> >
> >
> >
> >
> > Hi
> >
> > Here is the command I am using:
> > ./mencoder  -lavfopts
> i_certify_that_my_video_stream_does_not_use_b_frames
> > -of lavf -ffourcc FLV1 -ovc lavc  -oac mp3lame -srate 22050 -lameopts
> > preset=64:mode=3  ~/videos/testvid.mov -o
> ~/videos/testvid.flv  -lavcopts
> > vcodec=flv:vbitrate=256:v4mv:mbd=2:trell:mbcmp=3
> >
> > MEncoder dev-SVN-r19184-4.0.2 (C) 2000-2006 MPlayer Team
> > .
> > .
> > .
> > VDec: using Planar YV12 as output csp (no 0)
> > Movie-Aspect is undefined - no prescaling applied.
> > videocodec: libavcodec (848x448 fourcc=31564c46 [FLV1])
> > [VE_LAVC] High quality encoding selected (non-realtime)!
> > VIDEO CODEC ID: 22
> > AUDIO CODEC ID: 15001, TAG: 0
> > Writing header...
> > Segmentation faultf ( 0%)  0.00fps Trem:   0min   0mb  A-V:0.004 [0:0]
> >
> >
> > I debugged it a bit more, its crashing in ff_fdct_sse2() method.
>
> try a fresh checkout (especially of lavc) IIRC there was a alignment bug
> fixed in ff_fdct_sse2() or so recently
>
> [...]
> --
> Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB
>
> In the past you could go to a library and read, borrow or copy any book
> Today you'd get arrested for mere telling someone where the library is
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