[MPlayer-users] mjpeg and mencoder
Arpi
arpi at thot.banki.hu
Thu Jan 9 16:08:05 CET 2003
Hi,
> > you should either
> > - capture from DVB (digital TV/sat), they broadcast in ~6mbit/s mpeg2
> > - capture from analog TV/sat but using some noise removal filters at
> > capturing time, then lossless compression will go better.
> >
> > for example -vop pp=dn:c:64:128:256 is a good start, but we definitly
> > need a better, pre-pixel noise filter, with motion compensation etc.
>
> There doesn't seem to be a lot of noise here. After all, this is
> satelite. Natureally there are mpeg2 artifacts, but they are very
> minimalistic.
so you have a DVB receiver, and an analog link form it to your PC's analog
tuner card? shit. you should consider buying a cheap DVB card to the pc and
record as-is the mpeg2. even a p100 can do that...
> > > Why? Because I can't do live TV capture unless I use mjpeg. DIVX is
> > > just too slow ;( There are some things I want captured at 640x480
> > > instead of 320x240 or what not :/
> > you shouldn't capture at 640x480...
> > and for any Y res >288 you should do deinterlacing too.
>
> Why shouldn't I capture at 640x480? I don't want to deinterlace, btw,
ok you should, _if_ you capture NTSC, and not PAL.
> these movies are to be played on a TV...
>
> I want the interlaced signal.
then forget ffmpeg's mjpeg, use ffmpeg's mpeg4 with I-only (keyint=0,
shouldn't be slower than mjpeg but it supports interlacing)
or implement interlacing support into ffmpeg's mjpeg.
or split frames to fields with -vop il=d
A'rpi / Astral & ESP-team
--
Developer of MPlayer, the Movie Player for Linux - http://www.MPlayerHQ.hu
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