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Reverting r12850...hopefully

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Never removed one before, but I'm pretty sure it is correct.
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lllucius
2013-11-03 01:54:50 +00:00
parent a68955a0dd
commit b4ba110811
360 changed files with 62988 additions and 62988 deletions
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194
lib-src/libsoxr/examples/3-options-input-fn.c
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@@ -1,97 +1,97 @@
/* SoX Resampler Library Copyright (c) 2007-12 robs@users.sourceforge.net
* Licence for this file: LGPL v2.1 See LICENCE for details. */
/* Example 3: extends example 2 with multiple channels, multiple datatypes,
* and other options.
*
* The application provides an input function, called on demand by libsoxr, in
* response to calls to soxr_output(); compared to the `process' approach
* (illustrated in example 2) this requires that the application implements
* less logic, but one more function.
*
* The eight arguments (which are optional, from last to first) are:
* INPUT-RATE As example 2
* OUTPUT-RATE Ditto
* NUM-CHANNELS Number of interleaved channels
* IN-DATATYPE# 0:float32 1:float64 2:int32 3:int16
* OUT-DATATYPE# Ditto
* Q-RECIPE Quality recipe (in hex) See soxr.h
* Q-FLAGS Quality flags (in hex) See soxr.h
* USE-THREADS 1 to use multi-threading (where available)
*/
#include <soxr.h>
#include "examples-common.h"
typedef struct {void * ibuf; size_t isize;} input_context_t;
static size_t input_fn(input_context_t * p, soxr_cbuf_t * buf, size_t len)
{
/* Read one block into the buffer, ready to be input to the resampler: */
len = fread(p->ibuf, p->isize, len, stdin); /* Actual len read may be less. */
/* Inform the resampler of the data's whereabouts (which could be anywhere, in
* a freshly malloc'd buffer, for example): */
*buf = (!len && ferror(stdin))? NULL : p->ibuf; /* NULL if error occurred. */
return len; /* # of samples per channel to input. */
}
int main(int n, char const * arg[])
{
char const * const arg0 = n? --n, *arg++ : "";
double const irate = n? --n, atof(*arg++) : 96000.;
double const orate = n? --n, atof(*arg++) : 44100.;
unsigned const chans = n? --n, (unsigned)atoi(*arg++) : 1;
soxr_datatype_t const itype = n? --n, (soxr_datatype_t)atoi(*arg++) : 0;
soxr_datatype_t const otype = n? --n, (soxr_datatype_t)atoi(*arg++) : 0;
unsigned long const q_recipe= n? --n, strtoul(*arg++, 0, 16) : SOXR_HQ;
unsigned long const q_flags = n? --n, strtoul(*arg++, 0, 16) : 0;
int const use_threads = n? --n, atoi(*arg++) : 1;
soxr_quality_spec_t const q_spec = soxr_quality_spec(q_recipe, q_flags);
soxr_io_spec_t const io_spec = soxr_io_spec(itype, otype);
soxr_runtime_spec_t const runtime_spec = soxr_runtime_spec(!use_threads);
/* Allocate resampling input and output buffers in proportion to the input
* and output rates: */
#define buf_total_len 15000 /* In samples per channel. */
size_t const osize = soxr_datatype_size(otype) * chans;
size_t const isize = soxr_datatype_size(itype) * chans;
size_t const olen = (size_t)(orate * buf_total_len / (irate + orate) + .5);
size_t const ilen = buf_total_len - olen;
void * const obuf = malloc(osize * olen);
void * const ibuf = malloc(isize * ilen);
input_context_t icontext;
size_t odone, clips = 0;
soxr_error_t error;
/* Create a stream resampler: */
soxr_t soxr = soxr_create(
irate, orate, chans, /* Input rate, output rate, # of channels. */
&error, /* To report any error during creation. */
&io_spec, &q_spec, &runtime_spec);
if (!error) { /* Register input_fn with the resampler: */
icontext.ibuf = ibuf, icontext.isize = isize;
error = soxr_set_input_fn(soxr, (soxr_input_fn_t)input_fn, &icontext, ilen);
}
if (!error) { /* If all is well, run the resampler: */
USE_STD_STDIO;
/* Resample in blocks: */
do odone = soxr_output(soxr, obuf, olen);
while (fwrite(obuf, osize, odone, stdout)); /* Consume output. */
error = soxr_error(soxr); /* Check if any soxr error occurred. */
clips = *soxr_num_clips(soxr); /* Can occur only with integer output. */
}
/* Tidy up: */
soxr_delete(soxr);
free(obuf), free(ibuf);
/* Diagnostics: */
fprintf(stderr, "%-26s %s; %lu clips; I/O: %s\n", arg0, soxr_strerror(error),
(long unsigned)clips, errno? strerror(errno) : "no error");
return error || errno;
}
/* SoX Resampler Library Copyright (c) 2007-12 robs@users.sourceforge.net
* Licence for this file: LGPL v2.1 See LICENCE for details. */
/* Example 3: extends example 2 with multiple channels, multiple datatypes,
* and other options.
*
* The application provides an input function, called on demand by libsoxr, in
* response to calls to soxr_output(); compared to the `process' approach
* (illustrated in example 2) this requires that the application implements
* less logic, but one more function.
*
* The eight arguments (which are optional, from last to first) are:
* INPUT-RATE As example 2
* OUTPUT-RATE Ditto
* NUM-CHANNELS Number of interleaved channels
* IN-DATATYPE# 0:float32 1:float64 2:int32 3:int16
* OUT-DATATYPE# Ditto
* Q-RECIPE Quality recipe (in hex) See soxr.h
* Q-FLAGS Quality flags (in hex) See soxr.h
* USE-THREADS 1 to use multi-threading (where available)
*/
#include <soxr.h>
#include "examples-common.h"
typedef struct {void * ibuf; size_t isize;} input_context_t;
static size_t input_fn(input_context_t * p, soxr_cbuf_t * buf, size_t len)
{
/* Read one block into the buffer, ready to be input to the resampler: */
len = fread(p->ibuf, p->isize, len, stdin); /* Actual len read may be less. */
/* Inform the resampler of the data's whereabouts (which could be anywhere, in
* a freshly malloc'd buffer, for example): */
*buf = (!len && ferror(stdin))? NULL : p->ibuf; /* NULL if error occurred. */
return len; /* # of samples per channel to input. */
}
int main(int n, char const * arg[])
{
char const * const arg0 = n? --n, *arg++ : "";
double const irate = n? --n, atof(*arg++) : 96000.;
double const orate = n? --n, atof(*arg++) : 44100.;
unsigned const chans = n? --n, (unsigned)atoi(*arg++) : 1;
soxr_datatype_t const itype = n? --n, (soxr_datatype_t)atoi(*arg++) : 0;
soxr_datatype_t const otype = n? --n, (soxr_datatype_t)atoi(*arg++) : 0;
unsigned long const q_recipe= n? --n, strtoul(*arg++, 0, 16) : SOXR_HQ;
unsigned long const q_flags = n? --n, strtoul(*arg++, 0, 16) : 0;
int const use_threads = n? --n, atoi(*arg++) : 1;
soxr_quality_spec_t const q_spec = soxr_quality_spec(q_recipe, q_flags);
soxr_io_spec_t const io_spec = soxr_io_spec(itype, otype);
soxr_runtime_spec_t const runtime_spec = soxr_runtime_spec(!use_threads);
/* Allocate resampling input and output buffers in proportion to the input
* and output rates: */
#define buf_total_len 15000 /* In samples per channel. */
size_t const osize = soxr_datatype_size(otype) * chans;
size_t const isize = soxr_datatype_size(itype) * chans;
size_t const olen = (size_t)(orate * buf_total_len / (irate + orate) + .5);
size_t const ilen = buf_total_len - olen;
void * const obuf = malloc(osize * olen);
void * const ibuf = malloc(isize * ilen);
input_context_t icontext;
size_t odone, clips = 0;
soxr_error_t error;
/* Create a stream resampler: */
soxr_t soxr = soxr_create(
irate, orate, chans, /* Input rate, output rate, # of channels. */
&error, /* To report any error during creation. */
&io_spec, &q_spec, &runtime_spec);
if (!error) { /* Register input_fn with the resampler: */
icontext.ibuf = ibuf, icontext.isize = isize;
error = soxr_set_input_fn(soxr, (soxr_input_fn_t)input_fn, &icontext, ilen);
}
if (!error) { /* If all is well, run the resampler: */
USE_STD_STDIO;
/* Resample in blocks: */
do odone = soxr_output(soxr, obuf, olen);
while (fwrite(obuf, osize, odone, stdout)); /* Consume output. */
error = soxr_error(soxr); /* Check if any soxr error occurred. */
clips = *soxr_num_clips(soxr); /* Can occur only with integer output. */
}
/* Tidy up: */
soxr_delete(soxr);
free(obuf), free(ibuf);
/* Diagnostics: */
fprintf(stderr, "%-26s %s; %lu clips; I/O: %s\n", arg0, soxr_strerror(error),
(long unsigned)clips, errno? strerror(errno) : "no error");
return error || errno;
}