Differences

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--- ffmpeg:av_freep [2009/07/21 12:05] – deva
+++ ffmpeg:av_freep [2009/07/21 12:12] (current) – deva
@@ Line 12: / Line 12: @@
 ===ptr===
 <code c>void *ptr</code>
-Pointer to the pointer to the memory block which should be freed.
+Pointer to the pointer to the memory block which should be freed.\\
+NOTE: ptr should be declared as a void**, eg. it should be used as in the following example:
+<code c>
+void *p = av_malloc(42);
+av_freep(&p);
+// Now the memory is freed, and p has the value NULL.
+</code>
+Using av_freep is equivalent to using [[ffmpeg:av_free]] and manually setting the pointer to NULL afterwards.
 ====Return value====