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/* SoX Resampler Library Copyright (c) 2007-13 robs@users.sourceforge.net
* Licence for this file: LGPL v2.1 See LICENCE for details. */
/* Example 1a: Variant of example 1 using libsamplerate-like bindings. */
#include <soxr-lsr.h>
#include "examples-common.h"
float in[] = { /* Input: 12 cycles of a sine wave with freq. = irate/4 */
0,1,0,-1, 0,1,0,-1, 0,1,0,-1, 0,1,0,-1, 0,1,0,-1, 0,1,0,-1,
0,1,0,-1, 0,1,0,-1, 0,1,0,-1, 0,1,0,-1, 0,1,0,-1, 0,1,0,-1};
int main(int argc, char const * arg[])
{
double irate = argc > 1? atof(arg[1]) : 1; /* Default to upsampling */
double orate = argc > 2? atof(arg[2]) : 2; /* by a factor of 2. */
size_t olen = (size_t)(AL(in) * orate / irate + .5); /* Assay output len. */
float * out = (float *)malloc(sizeof(*out) * olen); /* Allocate output buf. */
int error, i = 0;
SRC_DATA data;
data.data_in = in;
data.data_out = out;
data.input_frames = AL(in);
data.output_frames = (int)olen;
data.src_ratio = orate / irate;
error = src_simple(&data, SRC_SINC_FASTEST, 1);
while (i++ < data.output_frames_gen) /* Print out the resampled data, */
printf("%5.2f%c", out[i-1], " \n"[!(i&7) || i == data.output_frames_gen]);
printf("%-26s %s\n", arg[0], src_strerror(error)); /* and reported result. */
if (argc > 3) /* Library version check: */
printf("runtime=%s\n", src_get_version());
free(out); /* Tidy up. */
return !!error;
}
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