[README.md] Document the 'duration' field in the output template (#6929)

9 years ago · 4c917d0314
parent 4866b72eb2
commit 4c917d0314
1 changed files with 1 additions and 0 deletions
--- a/README.md
+++ b/README.md
@ -281,6 +281,7 @@ The `-o` option allows users to indicate a template for the output file names. T
 - `playlist`: The sequence will be replaced by the name or the id of the playlist that contains the video.
 - `playlist_index`: The sequence will be replaced by the index of the video in the playlist padded with leading zeros according to the total length of the playlist.
 - `format_id`: The sequence will be replaced by the format code specified by `--format`.
+ - `duration`: The sequence will be replaced by the length of the video in seconds.

 The current default template is `%(title)s-%(id)s.%(ext)s`.