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sff2g3(1)		      mgetty+sendfax manual		       sff2g3(1)

NAME
     sff2g3 - convert CAPI SFF fax files into G3 fax files

SYNOPSIS
     sff2g3 [-r] [-d] [-v] input.SFF output.%03d.g3

DESCRIPTION
     Reads a Common ISDN API (CAPI) structured file format (SFF) input file, and
     converts every fax page contained in it to a raw G3 fax file.

     The  input  SFF files typically come from fax reception programs using CAPI
     on active ISDN cards (isdn4linux, AVM or DIVA cards) or similar.  The  out-
     put G3 files are in the ``native'' format that all other G3 utilites in the
     mgetty+sendfax package use.

     If the input file name is ``-'', sff2g3 will read from stdin.

     The  output file name should contain a ``%d'' or ``%03d'' part.  It will be
     replaced with the current page number.  If there is no page  number  field,
     only the last page in the SFF file will be saved.

OPTIONS
     -r     reverse the bit order in the bytes of the output G3 file.  The input
	    bit order is fixed.

     -d     will one day make sff2g3 prepend a digifax header to the page.

     -v     verbose mode - show what's going on.  Multiple -v arguments increase
	    debug output level.

REFERENCES
     The  standard  for Group 3 fax is defined in CCITT Recommendation T.4.  The
     SFF file format is specified in the CAPI specs (http://www.capi.org).

BUGS
     The -d option isn't implemented yet.

     The output file name is not yet robust against format string attacks.

SEE ALSO
     g32pbm(1), pbm(5)

AUTHOR
     sff2g3 is Copyright (C) 2004 by Gert Doering, <gert@greenie.muc.de>.

greenie 			    17 Jul 04			       sff2g3(1)

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