Re: [vdr] Different between '#define MAXOSDAREAS 16' and '#define MAXNUMWINDOWS 7'

Webmaster wrote:

why is "#define MAXNUMWINDOWS 7" defined in dvbosd.c and "#define MAXOSDAREAS 16" in osd.h ? Its not the same and only 7 areas possible to create ?? Its a limit to the OSD/card ?

MAXNUMWINDOWS=7 is the maximum number of areas that FF DVB cards support. VDR however uses a more abstract interface that supports up to MAXOSDAREAS=16 different areas, provide that the OSD device can handle them. To know the real number of supported areas, you have to do several calls to CanHendleAreas.

Unfortunately, VDR does not enforce MAXOSDAREAS itself, so you may be able to call SetAreas(...,100) on a very flexible OSD device, which will probably lead to a solid crash due to non-handled cOsd internal buffer overruns.

Cheers,

Udo