XvQueryBestSize(3) libXv Functions XvQueryBestSize(3) NAME XvQueryBestSize - determine the optimum drawable region size SYNOPSIS #include <X11/extensions/Xvlib.h> int XvQueryBestSize(Display *dpy, XvPort port, Bool motion, unsigned int vw, unsigned int vh, unsigned int dw, unsigned int dh, unsigned int *p_dw, unsigned int *p_dh); ARGUMENTS dpy Specifies the connection to the X server. port Defines the port associated with the display and adaptor for which the optimum size is to be calculated. motion Specifies True if the destination size needs to support full motion, and False if the destination size need only support still images. vw,vh Specifies the size of the source video region desired. dw,dh Specifies the size of the destination drawable region de- sired. p_dw,p_dh Pointers to where the closest destination sizes supported by the server are returned. DESCRIPTION Some ports may be able to scale incoming or outgoing video. XvQueryBest- Size(3) returns the size of the closest destination region that is sup- ported by the adaptor. The returned size is guaranteed to be smaller than the requested size if a smaller size is supported. RETURN VALUES [Success] Returned if XvQueryBestSize(3) completed successfully. [XvBadExtension] Returned if the Xv extension is unavailable. [XvBadAlloc] Returned if XvQueryBestSize(3) failed to allocate memory to process the request. DIAGNOSTICS [XvBadPort] Generated if the requested port does not exist. X Version 11 libXv 1.0.13 XvQueryBestSize(3)
NAME | SYNOPSIS | ARGUMENTS | DESCRIPTION | RETURN VALUES | DIAGNOSTICS
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