Update yuv4mpeg to use PIX_FMT_NONE patch by (Roine Gustafsson <roine users sourcefor...

[ffmpeg] / libavformat / cutils.c

diff --git a/libavformat/cutils.c b/libavformat/cutils.c
index 3e46533c6b4fa2b51b08e3c4e990c8f42b34176a..1415e4e392f2e1999ffb4f0696dd813be5d905c5 100644 (file)
--- a/libavformat/cutils.c
+++ b/libavformat/cutils.c
@@ -17,7 +17,6 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 #include "avformat.h"
-#include <ctype.h>
 
 #if !defined(CONFIG_NOCUTILS)
 /**
@@ -108,3 +107,167 @@ char *pstrcat(char *buf, int buf_size, const char *s)
 }
 
 #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;
+}
+
+#define ISLEAP(y) (((y) % 4 == 0) && (((y) % 100) != 0 || ((y) % 400) == 0))
+#define LEAPS_COUNT(y) ((y)/4 - (y)/100 + (y)/400)
+
+/* this is our own gmtime_r. it differs from its POSIX counterpart in a 
+   couple of places, though. */
+struct tm *brktimegm(time_t secs, struct tm *tm)
+{   
+    int days, y, ny, m;
+    int md[] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
+
+    days = secs / 86400;
+    secs %= 86400;
+    tm->tm_hour = secs / 3600;
+    tm->tm_min = (secs % 3600) / 60;
+    tm->tm_sec =  secs % 60;
+
+    /* oh well, may be someone some day will invent a formula for this stuff */
+    y = 1970; /* start "guessing" */
+    while (days >= (ISLEAP(y)?366:365)) {
+       ny = (y + days/366);
+       days -= (ny - y) * 365 + LEAPS_COUNT(ny - 1) - LEAPS_COUNT(y - 1);
+       y = ny;
+    }
+    md[1] = ISLEAP(y)?29:28;
+    for (m=0; days >= md[m]; m++)
+        days -= md[m];
+
+    tm->tm_year = y;  /* unlike gmtime_r we store complete year here */
+    tm->tm_mon = m+1; /* unlike gmtime_r tm_mon is from 1 to 12 */
+    tm->tm_mday = days+1;
+
+    return tm;
+}
+
+/* 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;
+}
+