[MPlayer-users] MPlayer works like a charm, just need a few tips!

[gabor]

On Thu, 2003-01-23 at 22:29, Kris Kielhofner wrote:
> [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> gabor wrote:
> > [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> > On Thu, 2003-01-23 at 19:54, Kris Kielhofner wrote:
> > 
> >>[Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> >>Hello all,
> >>
> >>	MPlayer is the coolest thing that I have ever seen!  Because of it, I 
> >>am finally able to make use of my dual processor AMD Athlon MP machine. 
> >>  I have no complaints, but I am wondering how to do a couple of things:
> >>
> >>1) I have several Divx files that I have created with the mpeg4 codec of 
> >>libavcodec.  The problem is, the video is in 4:3 format with the stupid 
> >>black bars.  I want to crop the video without having to re-encode the 
> >>AVI file (thus resulting in a loss of quality), so that the aspect ratio 
> >>of the output file is 16:9 like it should be.  I have run mplayer -vop 
> >>cropdetect to determine the proper cropping parameters.  I understand 
> >>that MPlayer doesn't use -vop options with -dumpstream.  I also 
> >>understand that Mencoder doesn't use -vop options with -ovc copy and 
> >>-oac copy.  So what can I do to crop these AVI files that I already made 
> >>without losing quality?
> > 
> > 
> > you cant.
> > 
> > if you want to crop, you'll have to reencode. :(
> > 
> > 
> >>2)  Is there any way to make Mencoder SMP aware?  Right now I have no 
> >>problem with running two instances of it to use my hardware to it's full 
> >>potential, but I have to maintain two seperate working directories for 
> >>encoding.  Not a big deal, but would be nice.
> > 
> > no, ... mencoder ( as mplayer ) is single threaded...
> > 
> >>3)  What is the best way to handle combining dual sided and or double 
> >>disc DVD's (DVD's where the movie actually spans more that one side, ie 
> >>Goodfellas)?  I have tried ripping each side, then cat'ing each of those 
> >>files into mplayer with streamdump and - (to use stdin).  It seems to 
> >>work (output file is about the size it should be), except that I am 
> >>unable to seek in the file, and the audio doesn't work.  I have tried 
> >>corresponding options for Mencoder, as well as rebuilding the index 
> >>(does that make a difference with MPEG2 video like DVD's)?  I have also 
> >>tried Mencoder with -ovc copy -oac copy into yet another file, but it 
> >>still doesn't work.
> > 
> > 
> > hmm... tell us what exactly are you trying to achive?
> > one big vob file? one big mpeg2 file?
> > 
> > for creating rips, why don't simply 
> > 
> > cat *.vob | mencoder 
> > 
> > and reencode the audio + video....
> > 
> > 
> > 
> > 
> >>
> >>I should also mention that I have several friends that are thinking of 
> >>converting to Linux just so that they can use MPlayer! (Who can blame them)?
> > 
> > :)
> > 
> > gabor
> > 
> >>
> >>Thanks a lot guys!
> >>
> >>Kris Kielhofner
> >>
> >>_______________________________________________
> >>RTFM!!!  http://www.MPlayerHQ.hu/DOCS
> >>Search:  http://www.MPlayerHQ.hu/cgi-bin/htsearch
> >>http://mplayerhq.hu/mailman/listinfo/mplayer-users
> > 
> > 
> > _______________________________________________
> > RTFM!!!  http://www.MPlayerHQ.hu/DOCS
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> 
> cat *.VOB | mencoder OPTIONS -o goodfellas -
> 
> 
> Does not exactly work, well, it does, except that the output file has no 
>   sound!  I am doing this with 2 VOB files, one for each side of the DVD.

are you sure you want to have the raw data? i mean i'm not sure you can
have mpeg2 video in an avi file .....

hmm... maybe developers should comment here...

or.. if the only problem is sound...

first try to reconvert the sound into mp3 .. if that works, then you'll
know at least that the problem is with the audio...

bye,
gabor
> 
> Thanks,
> Kris
> 
> _______________________________________________
> RTFM!!!  http://www.MPlayerHQ.hu/DOCS
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