[MEncoder-users] Need some hints for my tv recording concept

[Rich Felker]

On Tue, Aug 30, 2005 at 07:47:36PM +0200, Matthias Wieser wrote:
> Am Dienstag, 30. August 2005 19:02 schrieb Rich Felker:
> > On Sun, Aug 28, 2005 at 11:30:24PM +0200, Gerhard Brauer wrote:
> > > # ------------ OUTPUT --------------------#
> > > ##
> > > ### VIDEO
> > > VID="lavc"      # -ovc
> > > VIDOPT="-lavcopts
> > > vcodec=mjpeg:mbd=1:aspect=4/3:abitrate=128:acodec=ac3:mv0:nr=10"
> > > ##
> > >
> > > With this i get a 544x408 video and this resolution is about the max
> > > what my pc could record without overfulled video buffer.
> >
> > Never use any height except full (480 for ntsc, 576 for pal) or half
> > (240 for ntsc, 288 for pal). Anything else will give bogus, damaged
> > output.
> 
> That's not totally true. At least (some?) saa7134 cards have an nice 
> deinterlacer. For example, capturing PAL with 640x480 results in a nice 
> progressive video without interlacing artefacts.

This is fundamentally impossible. There's no such thing as a nice
half-framerate deinterlacer.

Rich