[MPlayer-users] best parameters to encode for 200kbps?

[D Richard Felker III]

please keep mail on-list!

On Wed, Sep 29, 2004 at 08:51:45PM -0700, Ricardo Kleemann wrote:
> Thanks you guys that provided some suggestions... I've been able to get
> some decent quality output at 200k. Now I'm going to try for lower
> bitrates and see what the result is.

great!
imo it depends on how low you're willing to take the res. i got
encodes small enuf to stream over modem (~32kbit) by dropping to
128x96 or lower.

> > also mencoder only writes avi files (and mpeg1/2 files with -of mpeg),
> > never mp4! so naming your output file .mp4 is nonsense.
> > 
> 
> Since mencoder only writes avi files, I used ffmpeg to convert from the
> avi format to the mp4 format. However, it seems that I'm losing quality
> when doing that... I get more blockiness when converting to mp4. The
> codec itself is already mpeg4, so why is the quality degrading during
> the conversion step? I'm not changing anything. Here's the command I
> use:
> 
> ffmpeg -i infile.avi -acodec mp3 outfile.mp4
> 
> Any suggestions on how to be able to keep the same quality as the
> encoded avi file?

yes, use -acodec copy -vcodec copy.

rich