[Mplayer-os2] [eCS-Technical] Re: Mencoder

[Kovac Igor]

On Tue, 24 Jul 2007 12:52:26 -0000, rdconsult_1999 wrote:

>--- In eCS-Technical at yahoogroups.com, "Kovac Igor" <Cynic at ...> wrote:
>> 	Is there any /2 mencoder list ?
>Hello I reactive the MPlayer OS/2 Port List.

	Thanks for the link !

Here is question for users of this list:

	I've noticed that there is some problems when I try to do more
things in single line, for example, this line 

mencoder_path  videost1 "-oac lavc -ovc lavc -vf scale=480:576,harddup
-srate 44100 -af lavcresample=441 -lavcopts
vcodec=mpeg4:mbd=2:keyint=15:vrc_buf_size=917:vrc_minrate=600:vbitrate=2
500:vrc_maxrate=2500:acodec=ac3:abitrate=128 -ofps 25 -o "chosenname

	will result with:
  Stream #0.0: Video: mpeg4, yuv420p, 480x576, 25.00 fps(r)
  Stream #0.1: Audio: ac3, 44100 Hz, stereo, 128 kb/s

while

mencoder_path  videost1 videost2 videost3 videost4 "-oac lavc -ovc lavc
-vf scale=480:576,harddup -srate 44100 -af lavcresample=44
-lavcopts
vcodec=mpeg4:mbd=2:keyint=15:vrc_buf_size=917:vrc_minrate=600:vbitrate=2
500:vrc_maxrate=2500:acodec=ac3:abitrate=128 -ofps 25 -o "chosenname

	will result with:
  Stream #0.0: Video: mpeg4, yuv420p, 720x576, 25.00 fps(r)
  Stream #0.1: Audio: ac3, 48000 Hz, stereo, 128 kb/s

	Everything I try was no effect, so if I want to resample audio
and video bitrate/resolution i must go in two steps; first to rip
video, then use copy stream to join `em.  Anyone have solution to do
all in one step ?

Problem is:
1. If I join avi's first, then decode to lower resolution I've got temp
file with more than 2Gb in size wich isn't work with HPFS.
2. If I decode avi's first, then join `em together, probably is better
to forget to use variable bitrate, because Mencoder need to every part
of video that will be joined have same bitrate ?  Some test I made
result in close enough bitrates, some wasn't close enough.