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Upgrade to libsoxr 0.0.2.

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This commit is contained in:
v.audacity
2012-10-12 23:54:03 +00:00
parent 3cb679ccd8
commit 2416f94980
51 changed files with 1300 additions and 372 deletions
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27
lib-src/libsoxr/examples/2b-stream-with-input-fn.c
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@@ -8,10 +8,10 @@
* Arguments are: INPUT-RATE OUTPUT-RATE
*/
#include "util.h"
#include <soxr.h>
#include "examples-common.h"
#define iolen 10000
static size_t input_fn(
void * p, /* Generic pointer to any state variables neded here. */
@@ -20,23 +20,25 @@ static size_t input_fn(
{
static float * ibuf; /* Static context; this could be changed using `p'. */
size_t actual;
size_t len = min(requested_len, iolen);
/* Allocate the input buffer memory; check for errors: */
*buf = ibuf = realloc(ibuf, sizeof(float) * requested_len);
*buf = ibuf = (float *)realloc(ibuf, sizeof(float) * len);
if (!ibuf)
return 0; /* Indicate failure (*buf is also 0). */
/* Read samples from the input stream; check for errors: */
actual = fread(ibuf, sizeof(float), requested_len, stdin);
if (!actual && ferror(stdin))
*buf = 0; /* Indicate failure (actual is also 0). */
actual = fread(ibuf, sizeof(float), len, stdin);
if (!actual) {
if (ferror(stdin))
*buf = 0; /* Indicate failure (actual is also 0). */
free(ibuf), ibuf = 0;
}
return actual;
(void)p; /* Not used in this example. */
}
int main(int argc, char const * arg[])
{
double irate = argc > 1? atof(arg[1]) : 44100.;
@@ -47,20 +49,19 @@ int main(int argc, char const * arg[])
if (!error) /* Register input_fn with the resampler: */
error = soxr_set_input_fn(resampler, input_fn, 0);
STD_STDIO;
if (!error) { /* If all is good, run the resampler: */
#define olen 1000
float resampled[olen];
float resampled[iolen];
size_t actual;
/* Resample in blocks: */
do actual = soxr_output(resampler, resampled, olen);
USE_STD_STDIO;
do actual = soxr_output(resampler, resampled, iolen);
while (fwrite(resampled, sizeof(float), actual, stdout));
error = soxr_error(resampler); /* Note: before deleting the resampler! */
soxr_delete(resampler);
}
/* Diagnostics: */
fprintf(stderr, "resampler: %s; I/O: %s\n",
fprintf(stderr, "%-26s %s; I/O: %s\n", arg[0],
soxr_strerror(error), errno? strerror(errno) : "no error");
return error || errno;
}