fdkaac/src/compat_posix.c

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/*
* Copyright (C) 2013 nu774
* For conditions of distribution and use, see copyright notice in COPYING
*/
#if HAVE_CONFIG_H
# include "config.h"
#endif
#if HAVE_STDINT_H
# include <stdint.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <sys/time.h>
#include "compat.h"
int64_t aacenc_timer(void)
{
struct timeval tv = { 0 };
gettimeofday(&tv, 0);
return (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000;
}
FILE *aacenc_fopen(const char *name, const char *mode)
{
FILE *fp;
if (strcmp(name, "-") == 0)
fp = (mode[0] == 'r') ? stdin : stdout;
else
fp = fopen(name, mode);
return fp;
}
int aacenc_seekable(FILE *fp)
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{
return fseek(fp, 0, SEEK_CUR) == 0;
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}
/*
* Different from POSIX basename() when path ends with /.
* Since we use this only for a regular file, the difference doesn't matter.
*/
const char *aacenc_basename(const char *path)
{
const char *p = strrchr(path, '/');
return p ? p + 1: path;
}
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#ifndef HAVE_ICONV
char *aacenc_to_utf8(const char *s)
{
return strdup(s);
}
#else /* HAVE_ICONV */
#include <sys/types.h>
#include <stddef.h>
#include <errno.h>
#include <iconv.h>
#if HAVE_LIBCHARSET_H
#include <libcharset.h>
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#elif HAVE_LANGINFO_H
#include <langinfo.h>
static const char *locale_charset(void)
{
return nl_langinfo(CODESET);
}
#else
static const char *locale_charset(void)
{
return 0;
}
#endif
static
int utf8_from_charset(const char *charset, const char *from, char **to)
{
iconv_t cd;
size_t fromlen, obsize, ibleft, obleft;
char *ip, *op;
cd = iconv_open("UTF-8", charset);
if (cd == (iconv_t)-1)
return -1;
fromlen = strlen(from);
ibleft = fromlen;
obsize = 2;
obleft = obsize - 1;
*to = malloc(obsize);
ip = (char *)from;
op = *to;
while (ibleft > 0) {
if (iconv(cd, &ip, &ibleft, &op, &obleft) != (size_t)-1)
break;
else {
if (errno == E2BIG || obleft == 0) {
ptrdiff_t offset = op - *to;
obsize *= 2;
*to = realloc(*to, obsize);
op = *to + offset;
obleft = obsize - offset - 1;
}
if (errno == EILSEQ) {
++ip;
--ibleft;
*op++ = '?';
--obleft;
}
if (errno != E2BIG && errno != EILSEQ)
break;
}
}
iconv_close(cd);
*op = 0;
if (fromlen > 0 && op == *to) {
free(op);
return -1;
}
return 0;
}
char *aacenc_to_utf8(const char *s)
{
char *result;
const char *charset;
if ((charset = locale_charset()) == 0)
charset = "US-ASCII";
if (utf8_from_charset(charset, s, &result) < 0)
result = strdup(s);
return result;
}
#endif /* HAVE_ICONV */