Template values for the youtube-dl command

youtube-dl_template-values.list

General
   id (string)                     Video identifier
   title (string)                  Video title
   url (string)                    Video URL
   ext (string)                    Video filename extension
   alt_title (string)              A secondary title of the video
   display_id (string)             An alternative identifier for the video
   uploader (string)               Full name of the video uploader
   license (string)                License name the video is licensed under
   creator (string)                The creator of the video
   release_date (string)           The date (YYYYMMDD) when the video was released
   timestamp (numeric)             UNIX timestamp of the moment the video became available
   upload_date (string)            Video upload date (YYYYMMDD)
   uploader_id (string)            Nickname or id of the video uploader
   location (string)               Physical location where the video was filmed
   duration (numeric)              Length of the video in seconds
   view_count (numeric)            How many users have watched the video on the platform
   like_count (numeric)            Number of positive ratings of the video
   dislike_count (numeric)         Number of negative ratings of the video
   repost_count (numeric)          Number of reposts of the video
   average_rating (numeric)        Average rating give by users, the scale used depends on the webpage
   comment_count (numeric)         Number of comments on the video
   age_limit (numeric)             Age restriction for the video (years)
   is_live (boolean)               Whether this video is a live stream or a fixed-length video
   start_time (numeric)            Time in seconds where the reproduction should start, as specified in the URL
   end_time (numeric)              Time in seconds where the reproduction should end, as specified in the URL
   format (string)                 A human-readable description of the format
   format_id (string)              Format code specified by --format
   format_note (string)            Additional info about the format
   width (numeric)                 Width of the video
   height (numeric)                Height of the video
   resolution (string)             Textual description of width and height
   tbr (numeric)                   Average bitrate of audio and video in KBit/s
   abr (numeric)                   Average audio bitrate in KBit/s
   acodec (string)                 Name of the audio codec in use
   asr (numeric)                   Audio sampling rate in Hertz
   vbr (numeric)                   Average video bitrate in KBit/s
   fps (numeric)                   Frame rate
   vcodec (string)                 Name of the video codec in use
   container (string)              Name of the container format
   filesize (numeric)              The number of bytes, if known in advance
   filesize_approx (numeric)       An estimate for the number of bytes
   protocol (string)               The protocol that will be used for the actual download
   extractor (string)              Name of the extractor
   extractor_key (string)          Key name of the extractor
   epoch (numeric)                 Unix epoch when creating the file
   autonumber (numeric)            Five-digit number that will be increased with each download, starting at zero
   playlist (string)               Name or id of the playlist that contains the video
   playlist_index (numeric)        Index of the video in the playlist padded with leading zeros according to the total length of the playlist
   playlist_id (string)            Playlist identifier
   playlist_title (string)         Playlist title
   playlist_uploader (string)      Full name of the playlist uploader
   playlist_uploader_id (string)   Nickname or id of the playlist uploader

Available for the video that belongs to some logical chapter or section:
   chapter (string)                Name or title of the chapter the video belongs to
   chapter_number (numeric)        Number of the chapter the video belongs to
   chapter_id (string)             Id of the chapter the video belongs to
   series (string)                 Title of the series or programme the video episode belongs to
   season (string)                 Title of the season the video episode belongs to
   season_number (numeric)         Number of the season the video episode belongs to
   season_id (string)              Id of the season the video episode belongs to
   episode (string)                Title of the video episode
   episode_number (numeric)        Number of the video episode within a season
   episode_id (string)             Id of the video episode

Available for the media that is a track or a part of a music album:
   track (string)                  Title of the track
   track_number (numeric)          Number of the track within an album or a disc
   track_id (string)               Id of the track
   artist (string)                 Artist(s) of the track
   genre (string)                  Genre(s) of the track
   album (string)                  Title of the album the track belongs to
   album_type (string)             Type of the album
   album_artist (string)           List of all artists appeared on the album
   disc_number (numeric)           Number of the disc or other physical medium the track belongs to
   release_year (numeric)          Year (YYYY) when the album was released