[Mplayer-cvslog] CVS: main/DOCS/tech tech-eng.txt,1.21,1.22

[Alex Beregszaszi]

Hi,

> > +	init the video system (to support querying for supported formats)
> > +	THIS IS CALLED ONLY ONCE
> this is not true yet...
> it's called for each file
> (later it will be called after each -vo change)
> 
> >  	 VOCTRL_RESET  -  reset the video device
> >  		This is sent on seeking and similar and is useful if you are
> >  		using a device which prebuffers frames that need to flush them
> >  		before refilling audio/video buffers.
> > +	 VOCTRL_PAUSE
> > +	 VOCTRL_RESUME
> these are used by drivers with hardware timing (currently only dxr3)
> it has nothing with gui

??
see below, there's guisupport thingie

> 
> > +	 VOCTRL_GUISUPPORT
> > +		return true only if driver supports co-operation with
> > +		MPlayer's GUI (not yet used by GUI)
> > +	 VOCTRL_QUERY_VAA  -  this is used by the vidix extension
> > +		this is used by the vidix extension to fill a vo_vaa_t struct,
> > +		I do not know how this works since I'm not the author of this
> it's only used to access video equalizer (contrast/brightness etc) stuff now
> anyway it's implemented by vo_xv and vo_xmga too, not specific to vidix
> name comes from video acceleeration architecture afaik

I didn't changed this.

> 
> > +    config():	
> > +      Set up the video system. You get the dimensions and flags.
> > +      Flags:
> > +        0x01	- fullscreen (-fs)
> > +	0x02	- mode switching (-vm)
> > +	0x04	- software scaling (-zoom)
> > +	0x08	- flipping (-flip) -- REQUIRED to support this
> > +      Also these flags you can get from vo_flags too and they're
> > +      defined as VOFLAG_* (see libvo/video_out.h)
> 
> ote: flip support shouldn't be required, but the driver should report if it
> supports flipping at query_format
i've never header about this

> 
> > -    init()  -  this is called before displaying of the first frame -
> > -	 initializing buffers, etc.
> > +    uninit():
> > +      Uninit the whole system, this is on the same "level" as preinit.
> 
> yes. uninit is called only once after preinit. no uninit without preceeding
> preinit. no second preinit without preceeding uninit.