doc: Clarify documentation for fade duration.

10 years ago · 6453fddb58
parent 4a94f7b22f
commit 6453fddb58
1 changed files with 2 additions and 1 deletions
--- a/doc/filters.texi
+++ b/doc/filters.texi
@ -4538,7 +4538,8 @@ The number of seconds for which the fade effect has to last. At the end of the
 fade-in effect the output video will have the same intensity as the input video,
 at the end of the fade-out transition the output video will be filled with the
 selected @option{color}.
-If both duration and nb_frames are specified, duration is used. Default is 0.
+If both duration and nb_frames are specified, duration is used. Default is 0
+(nb_frames is used by default).

@item color, c
 Specify the color of the fade. Default is "black".