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-rw-r--r--libavutil/opt.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/libavutil/opt.h b/libavutil/opt.h
index 97a1cb5774..68873de563 100644
--- a/libavutil/opt.h
+++ b/libavutil/opt.h
@@ -169,6 +169,7 @@ void av_opt_set_defaults2(void *s, int mask, int flags);
* key. ctx must be an AVClass context, storing is done using
* AVOptions.
*
+ * @param opts options string to parse, may be NULL
* @param key_val_sep a 0-terminated list of characters used to
* separate key from value
* @param pairs_sep a 0-terminated list of characters used to separate