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Addign some useful matlab binary file reading functions

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This commit is contained in:
Javier Arribas 2018-01-23 17:36:32 +01:00
parent a5d65f3424
commit 114121ef51
3 changed files with 153 additions and 0 deletions
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57
src/utils/matlab/libs/read_complex_binary.m Normal file
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%
% Copyright 2001 Free Software Foundation, Inc.
%
% This file is part of GNU Radio
%
% GNU Radio is free software; you can redistribute it and/or modify
% it under the terms of the GNU General Public License as published by
% the Free Software Foundation; either version 3, or (at your option)
% any later version.
%
% GNU Radio 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 General Public License for more details.
%
% You should have received a copy of the GNU General Public License
% along with GNU Radio; see the file COPYING. If not, write to
% the Free Software Foundation, Inc., 51 Franklin Street,
% Boston, MA 02110-1301, USA.
%
function v = read_complex_binary (filename, count, start_sample)
%% usage: read_complex_binary (filename, [count], [start_sample])
%%
%% open filename and return the contents as a column vector,
%% treating them as 32 bit complex numbers
%%
m = nargchk (1,2,nargin);
if (m)
%usage (m);
end
if (nargin < 2)
count = Inf;
start_sample=0;
end
if (nargin < 3)
start_sample=0;
end
f = fopen (filename, 'rb');
if (f < 0)
v = 0;
else
if (start_sample>0)
bytes_per_sample=4;
fseek(f,start_sample*bytes_per_sample,'bof');
end
t = fread (f, [2, count], 'float');
fclose (f);
v = t(1,:) + t(2,:)*i;
[r, c] = size (v);
v = reshape (v, c, r);
end

48
src/utils/matlab/libs/read_complex_char_binary.m Normal file
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%
% Copyright 2001 Free Software Foundation, Inc.
%
% This file is part of GNU Radio
%
% GNU Radio is free software; you can redistribute it and/or modify
% it under the terms of the GNU General Public License as published by
% the Free Software Foundation; either version 3, or (at your option)
% any later version.
%
% GNU Radio 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 General Public License for more details.
%
% You should have received a copy of the GNU General Public License
% along with GNU Radio; see the file COPYING. If not, write to
% the Free Software Foundation, Inc., 51 Franklin Street,
% Boston, MA 02110-1301, USA.
%
function v = read_complex_char_binary (filename, count)
%% usage: read_complex_binary (filename, [count])
%%
%% open filename and return the contents as a column vector,
%% treating them as 32 bit complex numbers
%%
m = nargchk (1,2,nargin);
if (m)
usage (m);
end
if (nargin < 2)
count = Inf;
end
f = fopen (filename, 'rb');
if (f < 0)
v = 0;
else
t = fread (f, [2, count], 'int8');
fclose (f);
v = t(1,:) + t(2,:)*i;
[r, c] = size (v);
v = reshape (v, c, r);
end

48
src/utils/matlab/libs/read_complex_short_binary.m Normal file
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%
% Copyright 2001 Free Software Foundation, Inc.
%
% This file is part of GNU Radio
%
% GNU Radio is free software; you can redistribute it and/or modify
% it under the terms of the GNU General Public License as published by
% the Free Software Foundation; either version 3, or (at your option)
% any later version.
%
% GNU Radio 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 General Public License for more details.
%
% You should have received a copy of the GNU General Public License
% along with GNU Radio; see the file COPYING. If not, write to
% the Free Software Foundation, Inc., 51 Franklin Street,
% Boston, MA 02110-1301, USA.
%
function v = read_complex_short_binary (filename, count)
%% usage: read_complex_binary (filename, [count])
%%
%% open filename and return the contents as a column vector,
%% treating them as 32 bit complex numbers
%%
m = nargchk (1,2,nargin);
if (m)
usage (m);
end
if (nargin < 2)
count = Inf;
end
f = fopen (filename, 'rb');
if (f < 0)
v = 0;
else
t = fread (f, [2, count], 'short');
fclose (f);
v = t(1,:) + t(2,:)*i;
[r, c] = size (v);
v = reshape (v, c, r);
end