[MEncoder-users] making movies from jpg's

[Django [BOfH]]

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Hello,

I've got two weatherwebcams (http://webcam.nausch.org). From 4:00 am
to 10:59 pm the cam makes every minute a picture. at the end of a day
so I've 1140 pictures. If the light outside is to dark, the cam's
produce grayscale pictures, at "normal light" the cam's produce color
picture.

If I try to make my movie with:

/usr/bin/mencoder mf://*.jpg -mf w=1920:h=1080:fps=25:type=jpg \
                  -ovc lavc -lavcopts vcodec=mjpeg -oac copy \
                  -force-avi-aspect 1.78:1 -o output.avi

mencoder is crashing with a segmentation fault. :(

MEncoder SVN-r31628-4.4.6 (C) 2000-2010 MPlayer Team
success: format: 16  data: 0x0 - 0x0
MF file format detected.
[mf] search expr: *.jpg
[mf] number of files: 1140 (9120)
VIDEO:  [IJPG]  1920x1080  24bpp  25.000 fps    0.0 kbps ( 0.0 kbyte/s)
[V] filefmt:16  fourcc:0x47504A49  size:1920x1080  fps:25.000
ftime:=0.0400
Opening video filter: [expand osd=1]
Expand: -1 x -1, -1 ; -1, osd: 1, aspect: 0.000000, round: 1
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffmjpeg] vfm: ffmpeg (FFmpeg MJPEG)
==========================================================================
Could not find matching colorspace - retrying with -vf scale...
Opening video filter: [scale]
Movie-Aspect is 0.89:1 - prescaling to correct movie aspect.
[swscaler @ 0x3390520] using unscaled gray -> yuv420p special converter
videocodec: libavcodec (720x810 fourcc=47504a4d [MJPG])
[mjpeg @ 0x335e0a0] EOI missing, emulating
Writing header...
ODML: vprp aspect is 16384:9204.
Writing header...
ODML: vprp aspect is 16384:9204.
Movie-Aspect is 0.89:1 - prescaling to correct movie aspect..000 [45659:0]
Segmentation fault

First I thought, there were an error with the picture-size
(1820x1080). So I reduced the pictures to 720x405

At next point I thought, there were something bad with the actual
mplayer/mencoder-version. But on three different machines and
distributions, the same shit happens.

'cause the seg-fauld happens at the same time, I think, that happens
when my pictures changing from grayscale to color. So how can I make
my movies again, as I've done with my old cams
(http://www.youtube.com/watch?v=J0pxYLVVPT4). These made black
pictures if light was to dark and so I've no problem with mencoder.

Any idea? Every suggestion is welcome!


ttyl
Django
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