debian man page for video::capture::vbi

VBI(3pm)						User Contributed Perl Documentation						  VBI(3pm)

NAME
       Video::Capture::VBI - Functions to manipulate vbi fields & lines.

SYNOPSIS
	  use Video::Capture::VBI;

DESCRIPTION
       new Create a new VBI decoder object. VBI decoding often requires state, which this object represents

       reset (NYI)
	   Reset the state (e.g. after switching a channel).

CONSTANTS 
/ MASK OPERATORS
       The following constants are available (see ETS 300 706 for a more thorough definition).

	  VTX_SUB 0x003f7f # S1..S4 field mask

	  VTX_C4  0x000080 # erase page
	  VTX_C5  0x004000 # newsflash
	  VTX_C6  0x008000 # subtitle
	  VTX_C7  0x010000 # suppress header
	  VTX_C8  0x020000 # update indicator
	  VTX_C9  0x040000 # interrupted sequence
	  VTX_C10 0x080000 # inhibit display
	  VTX_C11 0x100000 # magazine serial

	  VTX_C12 0x200000 # ... option ...
	  VTX_C13 0x400000 # ... character ...
	  VTX_C14 0x800000 # ... set

       The following mask functions all take a single "CTRL" bitfield and return the corresponding subfield:

	  VTX_S1  (shift    )&15 } # S1
	  VTX_S2  (shift>> 4)& 7 } # S2
	  VTX_S3  (shift>> 8)&15 } # S3
	  VTX_S4  (shift>>12)& 3 } # S4
	  VTX_NOC (shift>>21)& 7 } # national character set...

perl v5.14.2							    2005-11-06								  VBI(3pm)