[MPlayer-users] Re: slightly confused by mencoder output
mwieser at gmx.de
Mon Sep 12 22:37:41 CEST 2005
Am Montag, 12. September 2005 06:39 schrieb RC:
> On Sun, 11 Sep 2005 22:08:25 +0200
> The Eye <mhellwig at gmx.at> wrote:
> > video0:width=720:height=530:
> A height of 530 is nonsensical.
> Since the content is interlaced, you
> can only capture at the card's full heigh (576 PAL / 480 NTSC) or
> exactly half (or 1/4 1/8 etc).
Or any other supported resolution if you have a saa7134 card because the
saa7134 chip has a not-so-bad deinterlacer.
> > crop=688:518:16:6,pp=fd
> Your output dimentions should be exact multiples of 16.
That's not so important if you don't care about the bitrate. If in doubt
add 10% to the bitrate if your output dimentions are not multiples of 16.
I think it is much more important to take care that the vertical crop
offset is a multiple of four which is not the case in The Eye's mencoder
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