Move ff_dynarray_add to lavu and make it public.

doc/APIchanges

@@ -13,6 +13,10 @@ libavutil:   2011-04-18
 
 API changes, most recent first:
 
+2011-04-xx - xxxxxxx - lavu 51.2.0 - mem.h
+  Add av_dynarray_add function for adding
+  an element to a dynamic array.
+
 2011-04-XX - bebe72f - lavu 51.1.0 - avutil.h
   Add AVPictureType enum and av_get_picture_type_char(), deprecate
   FF_*_TYPE defines and av_get_pict_type_char() defined in

libavformat/cutils.c

@@ -21,27 +21,6 @@
 #include "avformat.h"
 #include "internal.h"
 
-/* add one element to a dynamic array */
-void ff_dynarray_add(intptr_t **tab_ptr, int *nb_ptr, intptr_t elem)
-{
-    /* see similar ffmpeg.c:grow_array() */
-    int nb, nb_alloc;
-    intptr_t *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(intptr_t));
-        *tab_ptr = tab;
-    }
-    tab[nb++] = elem;
-    *nb_ptr = nb;
-}
-
 #define ISLEAP(y) (((y) % 4 == 0) && (((y) % 100) != 0 || ((y) % 400) == 0))
 #define LEAPS_COUNT(y) ((y)/4 - (y)/100 + (y)/400)
 

libavformat/internal.h

@@ -31,20 +31,18 @@ typedef struct AVCodecTag {
     unsigned int tag;
 } AVCodecTag;
 
-void ff_dynarray_add(intptr_t **tab_ptr, int *nb_ptr, intptr_t elem);
-
 #ifdef __GNUC__
 #define dynarray_add(tab, nb_ptr, elem)\
 do {\
     __typeof__(tab) _tab = (tab);\
     __typeof__(elem) _elem = (elem);\
     (void)sizeof(**_tab == _elem); /* check that types are compatible */\
-    ff_dynarray_add((intptr_t **)_tab, nb_ptr, (intptr_t)_elem);\
+    av_dynarray_add(_tab, nb_ptr, _elem);\
 } while(0)
 #else
 #define dynarray_add(tab, nb_ptr, elem)\
 do {\
-    ff_dynarray_add((intptr_t **)(tab), nb_ptr, (intptr_t)(elem));\
+    av_dynarray_add((tab), nb_ptr, (elem));\
 } while(0)
 #endif
 

libavutil/avutil.h

@@ -40,7 +40,7 @@
 #define AV_VERSION(a, b, c) AV_VERSION_DOT(a, b, c)
 
 #define LIBAVUTIL_VERSION_MAJOR 51
-#define LIBAVUTIL_VERSION_MINOR  1
+#define LIBAVUTIL_VERSION_MINOR  2
 #define LIBAVUTIL_VERSION_MICRO  0
 
 #define LIBAVUTIL_VERSION_INT   AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \

libavutil/mem.c

@@ -171,3 +171,23 @@ char *av_strdup(const char *s)
     return ptr;
 }
 
+/* add one element to a dynamic array */
+void av_dynarray_add(void *tab_ptr, int *nb_ptr, void *elem)
+{
+    /* see similar ffmpeg.c:grow_array() */
+    int nb, nb_alloc;
+    intptr_t *tab;
+
+    nb = *nb_ptr;
+    tab = *(intptr_t**)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(intptr_t));
+        *(intptr_t**)tab_ptr = tab;
+    }
+    tab[nb++] = (intptr_t)elem;
+    *nb_ptr = nb;
+}

libavutil/mem.h

@@ -123,4 +123,13 @@ char *av_strdup(const char *s) av_malloc_attrib;
  */
 void av_freep(void *ptr);
 
+/**
+ * Add an element to a dynamic array.
+ *
+ * @param tab_ptr Pointer to the array.
+ * @param nb_ptr  Pointer to the number of elements in the array.
+ * @param elem    Element to be added.
+ */
+void av_dynarray_add(void *tab_ptr, int *nb_ptr, void *elem);
+
 #endif /* AVUTIL_MEM_H */