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-rw-r--r--libass/ass.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/libass/ass.h b/libass/ass.h
index 582af83..bd787f2 100644
--- a/libass/ass.h
+++ b/libass/ass.h
@@ -580,14 +580,14 @@ void ass_free_track(ASS_Track *track);
/**
* \brief Allocate new style.
* \param track track
- * \return newly allocated style id
+ * \return newly allocated style id >= 0, or a value < 0 on failure
*/
int ass_alloc_style(ASS_Track *track);
/**
* \brief Allocate new event.
* \param track track
- * \return newly allocated event id
+ * \return newly allocated event id >= 0, or a value < 0 on failure
*/
int ass_alloc_event(ASS_Track *track);