mirror of https://github.com/thesofproject/sof.git
50 lines
949 B
Matlab
50 lines
949 B
Matlab
function write_test_data(x, fn, bits, fmt, fs)
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% SPDX-License-Identifier: BSD-3-Clause
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% Copyright(c) 2019 Intel Corporation. All rights reserved.
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% Author: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
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switch lower(fmt)
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case 'wav'
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y = double(x) / 2^(bits-1);
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audiowrite(fn, y, fs, 'BitsPerSample', bits);
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return;
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case 'raw'
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fh = fopen(fn, 'wb');
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case 'txt'
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fh = fopen(fn, 'w');
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otherwise
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error('The file format must be raw or txt');
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end
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switch bits
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case 16
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bfmt = 'int16';
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case 24
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bfmt = 'int32';
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case 32
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bfmt = 'int32';
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otherwise
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error('The bits must be set to 16, 24, or 32');
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end
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%% Interleave the channels if two or more
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sx = size(x);
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xi = zeros(sx(1)*sx(2), 1, bfmt);
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if sx(2) > 1
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for n=1:sx(2)
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xi(n:sx(2):end) = x(:,n);
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end
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else
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xi(1:end) = x;
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end
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%% Write file and close
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if strcmp(lower(fmt), 'raw')
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fwrite(fh, xi, bfmt);
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else
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fprintf(fh,'%d\n', xi);
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end
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fclose(fh);
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end
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