ref: 36a83aede9accc17bf02d97d2ac7d1c306e0eff7
dir: /src/libsox.c/
/* Implements the public API for libSoX general functions
* All public functions & data are prefixed with sox_ .
*
* (c) 2006-8 Chris Bagwell and SoX contributors
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or (at
* your option) any later version.
*
* This library 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 Lesser
* General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "sox_i.h"
#include <string.h>
const char *sox_version(void)
{
static char versionstr[20];
sprintf(versionstr, "%d.%d.%d",
(SOX_LIB_VERSION_CODE & 0xff0000) >> 16,
(SOX_LIB_VERSION_CODE & 0x00ff00) >> 8,
(SOX_LIB_VERSION_CODE & 0x0000ff));
return(versionstr);
}
sox_version_info_t const * sox_version_info(void)
{
#define STRINGIZE1(x) #x
#define STRINGIZE(x) STRINGIZE1(x)
static char arch[30];
static sox_version_info_t info = {
/* size */
sizeof(sox_version_info_t),
/* flags */
(sox_version_flags_t)(
#if HAVE_POPEN
sox_version_have_popen +
#endif
#if HAVE_MAGIC
sox_version_have_magic +
#endif
#if HAVE_OPENMP
sox_version_have_threads +
#endif
#ifdef HAVE_FMEMOPEN
sox_version_have_memopen +
#endif
sox_version_none),
/* version_code */
SOX_LIB_VERSION_CODE,
/* version */
NULL,
/* sox_version_extra */
#ifdef PACKAGE_EXTRA
PACKAGE_EXTRA,
#else
NULL,
#endif
/* sox_time */
__DATE__ " " __TIME__,
/* sox_distro */
#ifdef DISTRO
DISTRO,
#else
NULL,
#endif
/* sox_compiler */
#if defined __GNUC__
"gcc " __VERSION__,
#elif defined _MSC_VER
"msvc " STRINGIZE(_MSC_FULL_VER),
#elif defined __SUNPRO_C
fprintf(file, "sun c " STRINGIZE(__SUNPRO_C),
#else
NULL,
#endif
/* sox_arch */
NULL
};
if (!info.version)
{
info.version = sox_version();
}
if (!info.arch)
{
snprintf(arch, sizeof(arch), "%u%u%u%u %u%u %u%u %c %s",
(unsigned)sizeof(char), (unsigned)sizeof(short),
(unsigned)sizeof(long), (unsigned)sizeof(off_t),
(unsigned)sizeof(float), (unsigned)sizeof(double),
(unsigned)sizeof(int *), (unsigned)sizeof(int (*)(void)),
MACHINE_IS_BIGENDIAN ? 'B' : 'L',
(info.flags & sox_version_have_threads) ? "OMP" : "");
arch[sizeof(arch) - 1] = 0;
info.arch = arch;
}
return &info;
}
/* Default routine to output messages; can be overridden */
static void output_message(
unsigned level, const char *filename, const char *fmt, va_list ap)
{
if (sox_globals.verbosity >= level) {
char base_name[128];
sox_basename(base_name, sizeof(base_name), filename);
fprintf(stderr, "%s: ", base_name);
vfprintf(stderr, fmt, ap);
fprintf(stderr, "\n");
}
}
static sox_globals_t s_sox_globals = {
2, /* unsigned verbosity */
output_message, /* sox_output_message_handler */
sox_false, /* sox_bool repeatable */
8192, /* size_t bufsiz */
0, /* size_t input_bufsiz */
0, /* int32_t ranqd1 */
NULL, /* char const * stdin_in_use_by */
NULL, /* char const * stdout_in_use_by */
NULL, /* char const * subsystem */
NULL, /* char * tmp_path */
sox_false, /* sox_bool use_magic */
sox_false /* sox_bool use_threads */
};
sox_globals_t * sox_get_globals(void)
{
return &s_sox_globals;
}
/* FIXME: Not thread safe using globals */
static sox_effects_globals_t s_sox_effects_globals =
{sox_plot_off, &s_sox_globals};
sox_effects_globals_t *
sox_get_effects_globals(void)
{
return &s_sox_effects_globals;
}
char const * sox_strerror(int sox_errno)
{
static char const * const errors[] = {
"Invalid Audio Header",
"Unsupported data format",
"Can't allocate memory",
"Operation not permitted",
"Operation not supported",
"Invalid argument",
};
if (sox_errno < SOX_EHDR)
return strerror(sox_errno);
sox_errno -= SOX_EHDR;
if (sox_errno < 0 || (size_t)sox_errno >= array_length(errors))
return "Unknown error";
return errors[sox_errno];
}
size_t sox_basename(char * base_buffer, size_t base_buffer_len, const char * filename)
{
if (!base_buffer || !base_buffer_len)
{
return 0;
}
else
{
char const * slash_pos = LAST_SLASH(filename);
char const * base_name = slash_pos ? slash_pos + 1 : filename;
char const * dot_pos = strrchr(base_name, '.');
size_t i, len;
dot_pos = dot_pos ? dot_pos : base_name + strlen(base_name);
len = dot_pos - base_name;
len = min(len, base_buffer_len - 1);
for (i = 0; i < len; i++)
{
base_buffer[i] = base_name[i];
}
base_buffer[i] = 0;
return i;
}
}
#define SOX_MESSAGE_FUNCTION(name,level) \
void name(char const * fmt, ...) { \
va_list ap; \
va_start(ap, fmt); \
if (sox_globals.output_message_handler) \
(*sox_globals.output_message_handler)(level,sox_globals.subsystem,fmt,ap); \
va_end(ap); \
}
SOX_MESSAGE_FUNCTION(lsx_fail_impl , 1)
SOX_MESSAGE_FUNCTION(lsx_warn_impl , 2)
SOX_MESSAGE_FUNCTION(lsx_report_impl, 3)
SOX_MESSAGE_FUNCTION(lsx_debug_impl , 4)
SOX_MESSAGE_FUNCTION(lsx_debug_more_impl , 5)
SOX_MESSAGE_FUNCTION(lsx_debug_most_impl , 6)
#undef SOX_MESSAGE_FUNCTION
int sox_init(void)
{
return lsx_effects_init();
}
int sox_quit(void)
{
sox_format_quit();
return lsx_effects_quit();
}