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

[Kris Kielhofner]

gabor wrote:
> [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> 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
>>>Search:  http://www.MPlayerHQ.hu/cgi-bin/htsearch
>>>http://mplayerhq.hu/mailman/listinfo/mplayer-users
>>
>>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
>>Search:  http://www.MPlayerHQ.hu/cgi-bin/htsearch
>>http://mplayerhq.hu/mailman/listinfo/mplayer-users
> 
> 
> _______________________________________________
> RTFM!!!  http://www.MPlayerHQ.hu/DOCS
> Search:  http://www.MPlayerHQ.hu/cgi-bin/htsearch
> http://mplayerhq.hu/mailman/listinfo/mplayer-users

No, sorry, I should have explained better.  I am used to runnning my DVD 
-> AVI script on single VOB's, as most DVD's video isn't more that one 
side.  I use the cat * | mplayer -dumpstream -dumpfile goodfellas - (or 
mencoder equivalent), to encode the two VOB files (sides of DVD disc) 
then I convert the one big VOB to AVI!  Sorry about that!


Kris