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

[Michael Niedermayer]

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