+++ /dev/null
-/*
- * Various simple utilities for ffmpeg system
- * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
- *
- * 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 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-#include "avformat.h"
-
-#if !defined(CONFIG_NOCUTILS)
-/**
- * Return TRUE if val is a prefix of str. If it returns TRUE, ptr is
- * set to the next character in 'str' after the prefix.
- *
- * @param str input string
- * @param val prefix to test
- * @param ptr updated after the prefix in str in there is a match
- * @return TRUE if there is a match
- */
-int strstart(const char *str, const char *val, const char **ptr)
-{
- const char *p, *q;
- p = str;
- q = val;
- while (*q != '\0') {
- if (*p != *q)
- return 0;
- p++;
- q++;
- }
- if (ptr)
- *ptr = p;
- return 1;
-}
-
-/**
- * Return TRUE if val is a prefix of str (case independent). If it
- * returns TRUE, ptr is set to the next character in 'str' after the
- * prefix.
- *
- * @param str input string
- * @param val prefix to test
- * @param ptr updated after the prefix in str in there is a match
- * @return TRUE if there is a match */
-int stristart(const char *str, const char *val, const char **ptr)
-{
- const char *p, *q;
- p = str;
- q = val;
- while (*q != '\0') {
- if (toupper(*(const unsigned char *)p) != toupper(*(const unsigned char *)q))
- return 0;
- p++;
- q++;
- }
- if (ptr)
- *ptr = p;
- return 1;
-}
-
-/**
- * Copy the string str to buf. If str length is bigger than buf_size -
- * 1 then it is clamped to buf_size - 1.
- * NOTE: this function does what strncpy should have done to be
- * useful. NEVER use strncpy.
- *
- * @param buf destination buffer
- * @param buf_size size of destination buffer
- * @param str source string
- */
-void pstrcpy(char *buf, int buf_size, const char *str)
-{
- int c;
- char *q = buf;
-
- if (buf_size <= 0)
- return;
-
- for(;;) {
- c = *str++;
- if (c == 0 || q >= buf + buf_size - 1)
- break;
- *q++ = c;
- }
- *q = '\0';
-}
-
-/* strcat and truncate. */
-char *pstrcat(char *buf, int buf_size, const char *s)
-{
- int len;
- len = strlen(buf);
- if (len < buf_size)
- pstrcpy(buf + len, buf_size - len, s);
- return buf;
-}
-
-#endif
-
-/* add one element to a dynamic array */
-void __dynarray_add(unsigned long **tab_ptr, int *nb_ptr, unsigned long elem)
-{
- int nb, nb_alloc;
- unsigned long *tab;
-
- nb = *nb_ptr;
- tab = *tab_ptr;
- if ((nb & (nb - 1)) == 0) {
- if (nb == 0)
- nb_alloc = 1;
- else
- nb_alloc = nb * 2;
- tab = av_realloc(tab, nb_alloc * sizeof(unsigned long));
- *tab_ptr = tab;
- }
- tab[nb++] = elem;
- *nb_ptr = nb;
-}
-
-time_t mktimegm(struct tm *tm)
-{
- time_t t;
-
- int y = tm->tm_year + 1900, m = tm->tm_mon + 1, d = tm->tm_mday;
-
- if (m < 3) {
- m += 12;
- y--;
- }
-
- t = 86400 *
- (d + (153 * m - 457) / 5 + 365 * y + y / 4 - y / 100 + y / 400 - 719469);
-
- t += 3600 * tm->tm_hour + 60 * tm->tm_min + tm->tm_sec;
-
- return t;
-}
-
-/* get a positive number between n_min and n_max, for a maximum length
- of len_max. Return -1 if error. */
-static int date_get_num(const char **pp,
- int n_min, int n_max, int len_max)
-{
- int i, val, c;
- const char *p;
-
- p = *pp;
- val = 0;
- for(i = 0; i < len_max; i++) {
- c = *p;
- if (!isdigit(c))
- break;
- val = (val * 10) + c - '0';
- p++;
- }
- /* no number read ? */
- if (p == *pp)
- return -1;
- if (val < n_min || val > n_max)
- return -1;
- *pp = p;
- return val;
-}
-
-/* small strptime for ffmpeg */
-const char *small_strptime(const char *p, const char *fmt,
- struct tm *dt)
-{
- int c, val;
-
- for(;;) {
- c = *fmt++;
- if (c == '\0') {
- return p;
- } else if (c == '%') {
- c = *fmt++;
- switch(c) {
- case 'H':
- val = date_get_num(&p, 0, 23, 2);
- if (val == -1)
- return NULL;
- dt->tm_hour = val;
- break;
- case 'M':
- val = date_get_num(&p, 0, 59, 2);
- if (val == -1)
- return NULL;
- dt->tm_min = val;
- break;
- case 'S':
- val = date_get_num(&p, 0, 59, 2);
- if (val == -1)
- return NULL;
- dt->tm_sec = val;
- break;
- case 'Y':
- val = date_get_num(&p, 0, 9999, 4);
- if (val == -1)
- return NULL;
- dt->tm_year = val - 1900;
- break;
- case 'm':
- val = date_get_num(&p, 1, 12, 2);
- if (val == -1)
- return NULL;
- dt->tm_mon = val - 1;
- break;
- case 'd':
- val = date_get_num(&p, 1, 31, 2);
- if (val == -1)
- return NULL;
- dt->tm_mday = val;
- break;
- case '%':
- goto match;
- default:
- return NULL;
- }
- } else {
- match:
- if (c != *p)
- return NULL;
- p++;
- }
- }
- return p;
-}
-
projects / synfig.git / blobdiff