- [VIDEO SELECTION](#video-selection)
- [FAQ](#faq)
- [DEVELOPER INSTRUCTIONS](#developer-instructions)
+- [EMBEDDING YOUTUBE-DL](#embedding-youtube-dl)
- [BUGS](#bugs)
- [COPYRIGHT](#copyright)
- `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`.