[MPlayer-dev-eng] How to force max video output resolution

[Endre Kollár]

2010/11/5 Till Harbaum / Lists <lists at harbaum.org>:
> Hi,
>
> i am writing a video out driver for some homebrew hardware of mine. It's a
> fixed 640x480 device with BGR24 format.
>
> Specifying the correct BGR24 format was a snap. But i can' t figure out how to
> force a max resolution of 640x480 pixels. If a ask mplayer to play a 854x480
> video it just doesn't understand that i want it to scale the video to at most
> 640x480 pixels. I don't return any VFCAP_HWSCALE_DOWN down flag, so i expected
> mplayer to understand my hardware needs something < its physical size.
>
> How do i do that? I have e.g. tried to set vo_screenwidth/height to 640x480 at
> various places incl. config() and in the VOCTRL_UPDATE_SCREENINFO path of
> control(). But still mplayer tries to feed my driver with 854x480 pixels.
>
> I am sure the answer is pretty simple, but i can't figure it out ...
>
> Thanks,
>  Till
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If the video output is not supported HWSCALE, forced to use the "-vf
scale=640:-2" You do not need to be self-work.