[MPlayer-users] Problem with win32 and mencoder piping

[José Gabriel Moya Yangüela]

My experience in DOS world shows Windows (DOS) pipes are broken. They only
do text piping: every pipe is closed at EOF (^Z in the DOS/Windows world).
If you really want to use *binary* piping under MS-DOS, I suggest you use
bash-for-ms-dos. You could install cygwin (waaaaay slooooow) or use the bash
shell included with the jigdo downloader used by Debian.


2007/1/12, John Doe <quake74 at gmail.com>:
>
> Hello!
>
> I'm a long time user, first time poster. I am trying to pipe the output of
> mencoder to x264 but I have problems.
> Using the builds from mplayerhq.hu doesn't work. Using the ones from
> http://oss.netfarm.it/mplayer-win32.php gives some strange results.
> The two files produced by
>
> mencoder orig.avi -frames 100 -ovc raw -of rawvideo -o rawoutput
> mencoder orig.avi -frames 100 -ovc raw -of rawvideo -msglevel all=-1 -o -
> >rawoutputpipe
>
> are identical, and x264 happily swallows the last one and produces a nice
> file
>
> ---------------------------------------------------------------
> x264 -o rawoutputpipe.mkv rawoutputpipe 368x208
> x264 [info]: using cpu capabilities MMX MMXEXT SSE SSE2
> x264 [info]: slice I:2     Avg QP:23.00  size:  5915  PSNR Mean Y:45.45 U:
> 59.11
> V:52.77 Avg:46.47 Global:46.06
> x264 [info]: slice P:98    Avg QP:26.00  size:  2942  PSNR Mean Y:42.06 U:
> 42.31
> V:41.23 Avg:41.85 Global:41.67
> x264 [info]: mb I  I16..4: 73.6%  0.0% 26.4%
> x264 [info]: mb P  I16..4: 28.6%  0.0%  4.7%  P16..4: 20.8%  7.4%  1.4%
> 0.0%  0
> .0%    skip:37.2%
> x264 [info]: SSIM Mean Y:0.9902164
> x264 [info]: PSNR Mean Y:42.132 U:42.649 V:41.463 Avg:41.943 Global:
> 41.722kb/s:
> 600.26
>
> encoded 100 frames, 55.19 fps, 601.22 kb/s
> -------------------------------------------------------------------------
>
> however
>
> --------------------------------------------------------------------------
> mencoder orig.avi -frames 100 -ovc raw -of rawvideo -msglevel all=-1 -o -
> |
> x264 -o rawvideopipe.mp4 -
>
> 368x208
> SSE2 supported but disabled
> x264 [info]: using cpu capabilities MMX MMXEXT SSE SSE2
> mp4 [info]: initial delay 0 (scale 25)
> x264 [info]: slice I:1     Avg QP:23.00  size:  6538  PSNR Mean Y:46.05 U:
> 45.69
> V:45.70 Avg:45.93 Global:45.93
> x264 [info]: mb I  I16..4: 79.6%  0.0% 20.4%
> x264 [info]: SSIM Mean Y:0.9966063
> x264 [info]: PSNR Mean Y:46.052 U:45.691 V:45.699 Avg:45.930 Global:
> 45.930kb/s:
> 1307.60
>
> encoded 1 frames, 62.50 fps, 1394.20 kb/s
>
> ----------------------------------------------------------------------------
>
> Neither ffmpeg likes the output of mencoder and the command
>
> mencoder.exe orig.avi -vf scale=640:480 -ovc raw -of rawvideo -msglevel
> all=-1 -o - | ffmpeg -f rawvideo
>
> -r 25 -s 640x480 -i - -f avi -s 320x240 b.avi
>
> produced a playable but garbled video file.
>
> Ongoing discussion at http://forum.doom9.org/showpost.php?p=931363
> Any suggestions/help? Thanks to all!
> _______________________________________________
> MPlayer-users mailing list
> MPlayer-users at mplayerhq.hu
> http://lists.mplayerhq.hu/mailman/listinfo/mplayer-users
>



-- 
Tengo poco tiempo para leer. Compré estos libros a peso. Ordené que me
trajeran una tonelada.