+
+void *av_fast_realloc(void *ptr, unsigned int *size, size_t min_size)
+{
+ if (min_size < *size)
+ return ptr;
+
+ min_size = FFMAX(17 * min_size / 16 + 32, min_size);
+
+ ptr = av_realloc(ptr, min_size);
+ /* we could set this to the unmodified min_size but this is safer
+ * if the user lost the ptr and uses NULL now
+ */
+ if (!ptr)
+ min_size = 0;
+
+ *size = min_size;
+
+ return ptr;
+}
+
+void av_fast_malloc(void *ptr, unsigned int *size, size_t min_size)
+{
+ void **p = ptr;
+ if (min_size < *size)
+ return;
+ min_size = FFMAX(17 * min_size / 16 + 32, min_size);
+ av_free(*p);
+ *p = av_malloc(min_size);
+ if (!*p)
+ min_size = 0;
+ *size = min_size;
+}