[MEncoder-users] real-time encoding of DVB-S @ 900 MHz
Reimar.Doeffinger at stud.uni-karlsruhe.de
Sun Jun 26 19:04:59 CEST 2005
On Sun, Jun 26, 2005 at 06:29:25PM +0200, Moritz Beller wrote:
> (3) sudo nice --10 mencoder dvb://Das Erste -oac mp3lame -lameopts
> mode=0:cbr:aq=3 -ovc lavc -lavcopts vcodec=mpeg4:vqscale=2:keyint=1
> -vf scale=384:288 -o test.avi
> Produces high-quality, yet very big files (~40MB/M)
> You'll probably want (1) and (2) for every day usage. (3) is needed in
> such cases when you want to go for very good quality, but leaving the
> deinterlacing out (directly copying the MPEG2-stream would need this).
Well, that example was for how to get very high speed, you might very
well adjust the qscale/keyint, that's really something everyone has to
try out themselves. I really is my impression that mpeg4 is almost
always better than mpeg2, you just need to find the right options.
Also if input is interlaced, you can use intelaced compression, see the
ilme and ildct lavc options (I hope they also work for mpeg4).
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