API changes, most recent first:
+2013-06-xx - xxxxxxx - lavu 52.13.0 - mem.h
+ Add av_realloc_array and av_reallocp_array
+
2013-05-xx - xxxxxxx - lavfi 3.10.0 - avfilter.h
Add support for slice multithreading to lavfi. Filters supporting threading
are marked with AVFILTER_FLAG_SLICE_THREADS.
#endif
}
+void *av_realloc_array(void *ptr, size_t nmemb, size_t size)
+{
+ if (size <= 0 || nmemb >= INT_MAX / size)
+ return NULL;
+ return av_realloc(ptr, nmemb * size);
+}
+
+int av_reallocp_array(void *ptr, size_t nmemb, size_t size)
+{
+ void **ptrptr = ptr;
+ void *ret;
+ if (size <= 0 || nmemb >= INT_MAX / size)
+ return AVERROR(ENOMEM);
+ if (nmemb <= 0) {
+ av_freep(ptr);
+ return 0;
+ }
+ ret = av_realloc(*ptrptr, nmemb * size);
+ if (!ret) {
+ av_freep(ptr);
+ return AVERROR(ENOMEM);
+ }
+ *ptrptr = ret;
+ return 0;
+}
+
void av_free(void *ptr)
{
#if CONFIG_MEMALIGN_HACK
*/
void *av_realloc(void *ptr, size_t size) av_alloc_size(2);
+/**
+ * Allocate or reallocate an array.
+ * If ptr is NULL and nmemb > 0, allocate a new block. If
+ * nmemb is zero, free the memory block pointed to by ptr.
+ * @param ptr Pointer to a memory block already allocated with
+ * av_malloc(z)() or av_realloc() or NULL.
+ * @param nmemb Number of elements
+ * @param size Size of the single element
+ * @return Pointer to a newly reallocated block or NULL if the block
+ * cannot be reallocated or the function is used to free the memory block.
+ */
+av_alloc_size(2, 3) void *av_realloc_array(void *ptr, size_t nmemb, size_t size);
+
+/**
+ * Allocate or reallocate an array.
+ * If *ptr is NULL and nmemb > 0, allocate a new block. If
+ * nmemb is zero, free the memory block pointed to by ptr.
+ * @param ptr Pointer to a pointer to a memory block already allocated
+ * with av_malloc(z)() or av_realloc(), or pointer to a pointer to NULL.
+ * The pointer is updated on success, or freed on failure.
+ * @param nmemb Number of elements
+ * @param size Size of the single element
+ * @return Zero on success, an AVERROR error code on failure.
+ */
+av_alloc_size(2, 3) int av_reallocp_array(void *ptr, size_t nmemb, size_t size);
+
/**
* Free a memory block which has been allocated with av_malloc(z)() or
* av_realloc().
*/
#define LIBAVUTIL_VERSION_MAJOR 52
-#define LIBAVUTIL_VERSION_MINOR 12
+#define LIBAVUTIL_VERSION_MINOR 13
#define LIBAVUTIL_VERSION_MICRO 0
#define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \