[MPlayer-users] Using ffmpeg standalone vs embeded in MPLayer to encode

[Steven Ellis]

--- Steven Ellis <pinguellis at yahoo.co.uk> wrote:
> [Automatic answer: RTFM (read DOCS, FAQ), also read
> DOCS/bugreports.html]
> I'm trying to transcode some MPEG2 and DV files to
> MPEG4 and have some scripts which work ok using
> FFMPEG.
> 
> I can also convert using mencoder with xvid.
> 
> But if I try to use mencoder with ffmpeg support it
> always core dumps.
> 
> Anyone else got similar behaviour our can point me
> and
> some recommended command lines.
> 
> I'm using
> 
> /usr/local/bin/mencoder -vop il -endpos 1:00 -oac
> copy
> -ovc lavc -lavcopts
> vcodec=mpeg4:vpass=1:vbitrate=900
> -o /dev/null fred.mpg

Further to the previous message I built a debug
version and performed a back trace on the crash

#0  0x081caf40 in __fixunssfdi (original_a=297)
#1  0x081ab685 in ff_rate_estimate_qscale
(s=0x8332720) at ratecontrol.c:625
#2  0x0815b17b in encode_picture (s=0x8332720,
picture_number=0) at mpegvideo.c:2641
#3  0x0815593b in MPV_encode_picture (avctx=0x82dce50,
buf=0x40e5a008 "", buf_size=2097152, 
    data=0xbfffe420) at mpegvideo.c:1039
#4  0x08152cbd in avcodec_encode_video
(avctx=0x82dce50, buf=0x40e5a008 "", buf_size=2097152,

    pict=0xbfffe420) at utils.c:122
#5  0x0807f53b in put_image (vf=0x82db570,
mpi=0x82d49d8) at ve_lavc.c:440
#6  0x080930a3 in vf_next_put_image (vf=0x82dd030,
mpi=0x82d49d8) at vf.c:390
#7  0x08094094 in put_image (vf=0x82dd030,
mpi=0x82d4970) at vf_expand.c:231
#8  0x080930a3 in vf_next_put_image (vf=0x82dbce8,
mpi=0x82d4970) at vf.c:390
#9  0x08086745 in decode_video (sh_video=0x82db4c0,
start=0x40d59008 "", in_size=9696, drop_frame=0)
    at dec_video.c:289
#10 0x080627da in main (argc=14, argv=0xbffffa24) at
mencoder.c:1021
#11 0x40b041f6 in __libc_start_main (main=0x80615a0
<main>, argc=14, ubp_av=0xbffffa24, 
    init=0x805ff9c <_init>, fini=0x81cb040 <_fini>,
rtld_fini=0x4000cfe8 <_dl_fini>, 
    stack_end=0xbffffa1c) at
../sysdeps/generic/libc-start.c:129


Steve

=====
--
If you listen very carefully you can sometimes hear the dolphins sing

pinguellis at yahoo.co.uk

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