[MPlayer-users] more newbie questions

Hugo González M. hugonz at hugonz.net
Sat Feb 15 09:02:35 CET 2003

> How can I tell what video format a file is in? I note this during mplayer
> start-up:
>   VIDEO:  []  720x480  24bpp  29.97 fps  6456.6 kbps (788.2 kbyte/s)
>   VIDEO:  MPEG2  720x480  (aspect 2)  29.97 fps  12250.0 kbps (1531.2
> kbyte/s)
> What's with the 29.97 fps? Is that really the frame rate of the source?
> What output devices run at 29.97 fps? Why are there two VIDEO lines? And
> why is one of them "^B"? What is "aspect 2"? Is that a widescreen format,
> or something?
Ok, from 720x480 and the MPEG2 format  this is most probably from a DVD, 
almost for sure, you gotta read up on the DVD format to quite understand 
this. The 29.97 frames per second indicates a FILM rate (on real film it's 30 

The "aspect" indicates if the frame is TV shaped 4:3 or FILM shaped 16:9. 
However, I'll point you to do 
$man mplayer

and then look for the "aspect" parameter. There it'll say what aspect 2 is....


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