Document the behavior of av_metadata_get() if the prev parameter is

NULL. Originally committed as revision 22704 to svn://svn.ffmpeg.org/ffmpeg/trunk
15 years ago · 66b6c7458e
parent d14f5391c1
commit 66b6c7458e
1 changed files with 1 additions and 0 deletions
--- a/libavformat/avformat.h
+++ b/libavformat/avformat.h
@ -131,6 +131,7 @@ typedef struct AVMetadataConv AVMetadataConv;
 /**
 * Gets a metadata element with matching key.
 * @param prev Set to the previous matching element to find the next.
+ *             If set to NULL the first matching element is returned.
 * @param flags Allows case as well as suffix-insensitive comparisons.
 * @return Found tag or NULL, changing key or value leads to undefined behavior.
 */