[MPlayer-users] Re: 1080i to 1080p mpeg2 or x264?

[Steven M. Schultz]

On Mon, 27 Feb 2006, RC wrote:

> On Mon, 27 Feb 2006 16:45:42 -0500
> "Steven Adeff" <adeffs.mythtv at gmail.com> wrote:
> 
> > well I'm trying an mpeg2 encode from a 1080i ts, I don't know if it
> > follows the HDTV "standards" for options, but I am noticing a blue bar
> > along the top of the encode in some scenes. It seems to fade in and
> 
> It's probably happening because 1080 isn't evenly divisible by 16.  You
> can use -vf expand=:1088 

	If it's a valid 1080i MPEG file it will be 1920x1088 with the
	vertical display size set to 1080.  If you're decoding a HDTV capture
	you'll want to decode and then crop to 1080 by dropping the last 
	8 lines.

	In a similar fashion if you're encoding to HD MPEG-2 you'll want to
	pad to 1088 and set the MPEG-2 vertical display option to 1080 so
	that players only display the first 1080 lines.  

	Cheers,
	Steven Schultz