[MPlayer-users] Best quality universal format?...

[Paul Simpson]

I think I'm allmost there.  Here's what I've done:

$ mencoder "mf://pics/*.tga" -mf w=720:h=576:fps=25 -o output.avi -ovc 
lavc -lavcopts vcodec=mpeg4
    // turn my .tga sequence into a mpeg4 .avi file (this plays fine in 
windows media player as a divx4 movie)

$ avi2raw output.avi output.m4v
avi2raw - mpeg4ip version 1.0
54 video frames written

So far so good.

$ mp4creator -c output.m4v -rate=25 -H output.mp4

$ l -l output.*
-rw-rw----    1 paul     realise    373694 Feb 19 20:36 output.avi
-rw-rw----    1 paul     realise    370299 Feb 19 20:36 output.m4v
-rw-rw----    1 paul     realise    382009 Feb 19 20:39 output.mp4

I get a quicktime data corrupted err msg.

You mentioned the lavcopts bit_exect option.  I can't see that anywhere 
- and I'm using
    MPlayer 1.0pre3-RPM-3.2.2

..this is where I get unstuck.  output.mp4 doesn't play in quicktime on 
my windows box. 


I've also tried:
$ ffmpeg -i output.m4v outputB.mp4 -vcodec mpeg4

This works!  But doesn't playback smoothly on Quicktime.  And is low 
quality. 

Any suggestions?

Many Thanks again,

Paul



>	Of course - I've done it.   All you need is the .m4v file (not the
>	.avi format that comes out of mencoder) and the audio file.  I use
>	'mp4creator' (one of the utilities from the mpeg4ip project at
>	http://mpeg4ip.sf.net thus:
>
>mp4creator -c rhrh.m4v -rate=29.970 -H rhrh.mp4
>mp4creator -c rhrh.aac -H -O rhrh.mp4
>
>	Leave out the -H to save a little space used by the streaming hint
>	track.
>
>	The resulting file plays fine with Apple's quicktime player IF
>	the userdata header is left out of the m4v stream (use the new
>	lavcopts option "bit_exact" to suppress the userdata header which 
>	appears to confound QT Player).
>
>	To extract the raw .m4v stream from a .avi file produced by mencoder
>	I use 'avi2raw' (another utility from mpeg4ip).  If you're using
>	ffmpeg directly to do the encoding there's a way (the exact options
>	I forget at the moment) to have it produce a .m4v file directly.
>
>	For maximum interchange compatibility I author a DVD and send 'em a
>	disc ;)
>
>	Cheers,
>	Steven Schultz
>
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