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/* Copyright (C) 2013, 2015 D. V. Wiebe
*
***************************************************************************
*
* This file is part of the GetData project.
*
* GetData is free software; you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by the
* Free Software Foundation; either version 2.1 of the License, or (at your
* option) any later version.
*
* GetData is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with GetData; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "gd_matlab.h"
/*
% GD_ALTER_FRAMEOFFSET Modify the frameoffset of a fragment
%
% GD_ALTER_FRAMEOFFSET(DIRFILE,OFFSET,FRAGMENT[,RECODE])
% sets the byte sex of the metadata fragment indexed by FRAGMENT
% in the dirfile DIRFILE to OFFSET. If RECODE is given and
% non-zero, binary files affected by the offset change will be
% converted. Otherwise, the binary files are not modified.
%
% The DIRFILE object should have previously been created with GD_OPEN.
%
% See the documentation on the C API function gd_alter_frameoffset(3) in
% section 3 of the UNIX manual for more details.
%
% See also GD_FRAMEOFFSET, GD_OPEN, GETDATA_CONSTANTS
*/
void mexFunction(int nlhs, mxArray *plhs[], int nrhs, const mxArray *prhs[])
{
DIRFILE *D;
int i, r;
uint64_t o;
GDMX_NO_LHS;
GDMX_CHECK_RHS(4);
D = gdmx_to_dirfile(prhs[0]);
o = gdmx_to_uint64(prhs, 1);
i = gdmx_to_int(prhs, 2);
r = gdmx_to_int(prhs, 3);
gd_alter_frameoffset64(D, o, i, r);
gdmx_err(D, 0);
}
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