[MPlayer-users] Need help with building a movie out of jpegs with mencoder on windows xp

Marcus Willander wille at willander.mine.nu
Wed Sep 1 02:14:34 CEST 2004


Tested the command:

mencoder mf://test\*.jpg -mf w=640:h=480:fps=6:type=jpeg -ovc copy -o 
ccgda.avi -nosound 
on some jpeg files, worked perfectly for me, but the width and heigth are 
somewhat swapped i guess because the image is higher than the width.

I'am running linux so i can't exactly say what you miss... but it seems like 
your missing the jpeg support. 

On Wednesday 01 September 2004 01.51, David R. Noriega wrote:
> Hello all,
>
> I have searched for an answer in the mailing lists (and google) to no
> avail, so apologies if this was indeed resolved before.
>
> I would like to compile a movie, preferably avi, preferably using divx
> from a series of jpegs that my web cam saves to a directory.
>
> I downloaded the windows version of mplayer and unzipped the files
> preserving the directory structure in a directory of my computer.
>
> I copied the jpegs to a "test" directory  where mplayer/mencoder bin
> files reside.
>
> I ran the following command:
> C:\Program Files\mplayer>mencoder mf://test\*.jpg -mf
> w=640:h=480:fps=6:type=jpeg -ovc copy -o ccgda.avi -nosound
>
> The result:
> MEncoder 1.0pre5-3.2.3 (C) 2000-2004 MPlayer Team
>
> CPU: Intel Pentium 4/Xeon/Celeron Foster 2373 MHz (Family: 8, Stepping: 7)
> Detected cache-line size is 64 bytes
> CPUflags: Type: 8 MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 0 SSE2: 0
> Compiled with runtime CPU detection - WARNING - this is not optimal!
> To get best performance, recompile MPlayer with
> --disable-runtime-cpudetection.
> Reading C:/Program Files/mplayer/mplayer/codecs.conf: Can't open
> 'C:/Program Files/mplayer/mplayer/codecs.conf': No such file or directory
> Reading /usr/local/etc/mplayer/codecs.conf: Can't open
> '/usr/local/etc/mplayer/codecs.conf': No such file or directory
> Using built-in default codecs.conf.
> File not found: 'frameno.avi'
> Failed to open frameno.avi
> Reading config file C:/Program Files/mplayer/mplayer/mencoder: No such
> file or directory
> font: can't open file: C:/Program Files/mplayer/mplayer/font/font.desc
> font: can't open file: /usr/local/share/mplayer/font/font.desc
> success: format: 16  data: 0x0 - 0x0
> [demuxer] mf support.
> [mf] search expr: test\*.jpg
> [mf] number of files: 430 (1720)
> [V] filefmt:16  fourcc:0x47504A49  size:640x480  fps: 6.00  ftime:=0.1667
> videocodec: framecopy (640x480 24bpp fourcc=47504a49)
> Writing AVI header...
> ODML: Aspect information not (yet?) available or unspecified, not
> writing vprp header.
>
> Writing AVI index...
> Fixing AVI header...
> ODML: Aspect information not (yet?) available or unspecified, not
> writing vprp header.
>
> Video stream:   -1.#IO kbit/s  (-2147483648 bps)  size: 0 bytes  0.000
> secs  0 frames
>
> As you can see, the resulting file was very small - about 5k with no
> video in it at all.
>
> If I run:
> C:\Program Files\mplayer>mencoder mf://test\*.jpg -mf
> w=640:h=480:fps=6:type=jpeg -ovc lavc -o ccgda.avi -nosound
> (note lavc option instead of copy)
> I get a fault error.
>
> The documentation states:
>
> *Explanation of the process:*
>
>    1.
>
>       *MEncoder* /decodes/ the input image(s) with libjpeg (when
>       decoding PNGs, it will use libpng).
>
>    2.
>
>       *MEncoder* then feeds the decoded image to the chosen video
>       compressor (DivX4, Xvid, ffmpeg msmpeg4, etc.).
>
> I would like to know if the libjpeg is compiled into mencoder or do I
> need to get a dll or something for it work?
>
> Thanks in advance
>
> David N.
>
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> MPlayer-users at mplayerhq.hu
> http://mplayerhq.hu/mailman/listinfo/mplayer-users

-- 
Marcus Willander
Tunastigen 68
973 44 Luleå
0920-212131
070-6544678




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