[Mplayer-cvslog] CVS: main/DOCS/tech tech-eng.txt,1.19,1.20

[David Holm]

Um, maybe arpi should apply the actual control patch first ;)

//David

On Fri, 2002-02-08 at 18:38, Winner of tha face compo wrote:
> Update of /cvsroot/mplayer/main/DOCS/tech
> In directory mplayer:/var/tmp.root/cvs-serv6900
> 
> Modified Files:
> 	tech-eng.txt 
> Log Message:
> applied David Holm's patch
> 
> 
> Index: tech-eng.txt
> ===================================================================
> RCS file: /cvsroot/mplayer/main/DOCS/tech/tech-eng.txt,v
> retrieving revision 1.19
> retrieving revision 1.20
> diff -u -r1.19 -r1.20
> --- tech-eng.txt	8 Feb 2002 13:54:57 -0000	1.19
> +++ tech-eng.txt	8 Feb 2002 17:38:32 -0000	1.20
> @@ -186,14 +186,6 @@
>  
>     Each vo driver _has_ to implement these:
>  
> -   query_format()  -  queries if a given pixelformat is supported.
> -		      return value:   flags:
> -			0x1  -  supported (by hardware or conversion)
> -			0x2  -  supported (by hardware, without conversion)
> -			0x4  -  sub/osd supported (has draw_alpha)
> -			0x8  -  hardware handles subpics
> -			0x100  -  driver/hardware handles timing (blocking)
> -
>     IMPORTANT: it's mandatorial that every vo driver support the YV12 format,
>  	 and one (or both) of BGR15 and BGR24, with conversion, if needed.
>  	 If these aren't supported, not every codec will work! The mpeg codecs
> @@ -211,6 +203,24 @@
>      If it can change bpp (for example DGA 2, fbdev, svgalib), then if possible
>  	 we have to change to the desired bpp. If the hardware doesn't support,
>  	 we have to change to the one closest to it, and do conversion!
> +
> +    control()  -  sends control requests to the device
> +	 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
> +		      
> +	 VOCTRL_QUERY_FORMAT  -  queries if a given pixelformat is supported.
> +		return value:   flags:
> +		    0x1  -  supported (by hardware or conversion)
> +		    0x2  -  supported (by hardware, without conversion)
> +		    0x4  -  sub/osd supported (has draw_alpha)
> +		    0x8  -  hardware handles subpics
> +		    0x100  -  driver/hardware handles timing (blocking)
> +		
> +	 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.
>  
>      init()  -  this is called before displaying of the first frame -
>  	 initializing buffers, etc.
> 
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