[MPlayer-users] Re: mencoder with lavc, mpeg4, vbitrate=1250 producing 3GB/h files

[Karsten Mueller]

Brian J. Murrell wrote:
> On Sun, Aug 11, 2002 at 03:48:02AM +0200, Rémi Guyomarch wrote:
> 
[...]

> 
> -ovc lavc -lavcopts vcodec=mpeg4:vpass=1:vbitrate=1250:vhq:vqmin=2:vratetol=40000 -oac copy
> 

What does mencoder tell you after encoding ?
A few weeks ago I always got way too big files, too since I forgot to
recode the AC3 audio track(s) in my recordings which gave me something
like "Audio stream .. size: 1996873144 bytes"

Since your input material is from an analog recording you shouldn't have
that AC3 problem anyway, so you should have an output somewhat similar
to this:

Video stream:  949.933 kbit/s  (118741 bps)  size: 627031633 bytes \
                5280.640 secs  132005 frames

Audio stream:  146.747 kbit/s  (18343 bps)  size: 96873144 bytes \
                5281.104 secs

The audio stream should be way smaller than the video stream. So your
command line option "-oac copy" makes me a bit suspicious ;)


> Maybe it's time to post some output of mencoder with a "-v" or two.
> 

Maybe it would be helpful to see the output of mplayer playing that 
particular source file...


> Thanx for the insightful help though.  Much appreciated.
> 
> b.
> 



-- 
with best regards
---
Karsten Mueller
Softwaredevelopment / Keyaccount Manager
RATIO Entwicklungen GmbH
Admiralitaetstr. 59
20459 Hamburg
Email: mailto:kmu at ratio.de