Did you try -M0?

----- Original Message -----
From: "Robert Kesterson" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>
Sent: Thursday, February 20, 2003 11:12 AM
Subject: [Mjpeg-users] Mpeg2enc segfaulting, I'm stumped.


>
> I've got a DV sequence I've been trying to get encoded to DVD for a week
> now, and I just can't get it to go.  Here's the script that I use:
>
>   #! /bin/sh
>
>   mkfifo stream.yuv
>   mkfifo video.yuv
>
>   smil2yuv -a "${1%.smil}.mp2" "$1" >stream.yuv &
>
>   cat stream.yuv | yuvdenoise -S 0 -b 4,4,696,468 | \
>       y4mshift -n 8 >video.yuv &
>
>   cat video.yuv | dd obs=1M | mpeg2enc -B 384 -f 8 -q 5 -b 9800 \
>      -r 16 -4 4 -2 4 -N -I 1 -o "${1%.smil}.m2v" -v 1
>
>   mplex -f 8 -o "${1%.smil}_%02d.mpeg" "${1%.smil}.mp2" "${1%.smil}.m2v"
>
> This script has worked great for converting to DVD on a couple
> dozen captures I've done recently.  I sometimes get a segfault during the
> encode, but if I just run it again, it goes through.
>
> However, this most recent sequence just will not go.  I've been trying for
> a week.  Out of 10 smil files (edit lists from Kino), 7 of them went right
> through to mpeg.  Three of them refuse to encode -- mpeg2enc segfaults
> every time.
>
> I did the smil2yuv and denoise passes to actual files, so I have a big 13G
> YUV file that I'm running mpeg2enc against.  I've tried reducing or
> eliminating every option shown in that command line (different "q"
> settings, bitrates, -N or not, etc), but it always segfaults.
>
> And the most maddening part is that it isn't consistent.  Sometimes it
> will encode 800 frames, sometimes 12000, or anywhere in between.  But
> never the whole file (25000 frames).  yuvplay will play the file just
> fine, and it looks fine visually.
>
> I've tried shutting down everything, unloading modules, doing it after a
> fresh boot, etc., but nothing so far has helped.  I've updated all the
> tools used to the latest CVS versions.  Still no go.
>
> Does anyone have any ideas on how to track this down?  The one thing I
> *haven't* done yet that I suppose would be a good idea is run it inside
> GDB, so at least I could see *where* it's segfaulting.  (Will go try
> that...)
>
> If it matters : Gigabyte GA7DXR motherboard, Athlon XP2100+, 512M RAM,
> ATA100 drives (tried three different drives on two different controllers,
> all ATA100).
>
> --
>   Robert Kesterson
>   [EMAIL PROTECTED]
>
>
>
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