[MPlayer-users] mpeg muxer: Only fixed aspect?

[Nico Sabbi]

Giacomo Comes wrote:

>On Fri, Mar 11, 2005 at 04:55:23AM +0000, JustFillBug wrote:
>  
>
>>It seems the mpeg mux and lavc mpeg encoder only take fixed aspect ratio
>>like 4/3, 16/9. If a aspect other than 4/3 or 16/9 was specified to
>>-mpegopts aspect= or -vf aspect, the 4/3 is assume(?)
>>    
>>
>
>mpeg aspect can be 4/3, 16/9, 2.21 or 1 (no aspect)
>if the aspect value specified with -lavcopts aspect=n
>is another value, the closest match between 1, 4/3, 16/9, 2.21
>is choosen. This is for 1.0pre6 and older version.
>I haven't check with the new muxer. Nico?
>
>  
>
the same, but vaspect is a string parameter, so you can't approximate it

>>How does anamorphic aspect works for SVCD or DVD mpeg?
>>
>>    
>>
>I'm not 100% sure, but I think that 
>only 16/9 DVD are played correctly by hardware DVD players.
>VCD/SVCD are always played as 4/3
>
>Giacomo
>  
>

4/3 is perfectly valid for dvd, 2.21 is not