X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavutil%2Fmem.h;h=fb23a690948ad833c5bc3fc3fc19515695751b10;hb=a46e578ddacd680b5b169a70c61032381a1b9f63;hp=a3294690cf97c32bd05a24f8535a77153b729727;hpb=8543575cc4e270b2d53d00ed0d26140a9badc6bd;p=ffmpeg

diff --git a/libavutil/mem.h b/libavutil/mem.h
index a3294690cf9..fb23a690948 100644
--- a/libavutil/mem.h
+++ b/libavutil/mem.h
@@ -122,6 +122,32 @@ void *av_realloc(void *ptr, size_t size) av_alloc_size(2);
  */
 void *av_realloc_f(void *ptr, size_t nelem, size_t elsize);
 
+/**
+ * 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().