[MPlayer-dev-eng] software scaling

Arpi arpi at thot.banki.hu
Mon Oct 15 21:37:21 CEST 2001


Hi,

> Hi,
> 
> I've separated my old YV12->BGR scaler routine and put to postproc/swscale.c
> 
> It's full C, but optimized in algorithm-level. the 3 inner loops should
> be done in MMX, because C sux at vector multiply and 0..255 range clipping...
> 
> Is someone (Michael, Nick) interested? I think it's a 5 minute work for you...
> 
> For testing, you can use x11:
> 
> mplayer -vo x11 -zoom file.mpg
sorry

mplayer -vo x11 -zoom file.mpg -xy 2
(specify size with -x -y or -xy, window resizing not yet works - the X11 gurus
should fix that! Pontscho?)

> note: input (codec) must be YV12  (ffmpeg codecs or libmpeg2 are ok)
>       output (X11) must be 24/32bpp. 15/16 not yet supported... (easy to add)


A'rpi / Astral & ESP-team

--
mailto:arpi at thot.banki.hu
http://esp-team.scene.hu



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