- -x, --extract-audio convert video files to audio-only files (requires
- ffmpeg or avconv and ffprobe or avprobe)
- --audio-format FORMAT "best", "aac", "vorbis", "mp3", "m4a", or "wav";
- best by default
- --audio-quality QUALITY ffmpeg/avconv audio quality specification, insert a
- value between 0 (better) and 9 (worse) for VBR or a
- specific bitrate like 128K (default 5)
- -k, --keep-video keeps the video file on disk after the post-
- processing; the video is erased by default
+ -x, --extract-audio convert video files to audio-only files (requires
+ ffmpeg or avconv and ffprobe or avprobe)
+ --audio-format FORMAT "best", "aac", "vorbis", "mp3", "m4a", "opus", or
+ "wav"; best by default
+ --audio-quality QUALITY ffmpeg/avconv audio quality specification, insert
+ a value between 0 (better) and 9 (worse) for VBR
+ or a specific bitrate like 128K (default 5)
+ --recode-video FORMAT Encode the video to another format if necessary
+ (currently supported: mp4|flv|ogg|webm)
+ -k, --keep-video keeps the video file on disk after the post-
+ processing; the video is erased by default
+ --no-post-overwrites do not overwrite post-processed files; the post-
+ processed files are overwritten by default
+
+# CONFIGURATION
+
+You can configure youtube-dl by placing default arguments (such as `--extract-audio --no-mtime` to always extract the audio and not copy the mtime) into `/etc/youtube-dl.conf` and/or `~/.config/youtube-dl.conf`.
+
+# OUTPUT TEMPLATE
+
+The `-o` option allows users to indicate a template for the output file names. The basic usage is not to set any template arguments when downloading a single file, like in `youtube-dl -o funny_video.flv "http://some/video"`. However, it may contain special sequences that will be replaced when downloading each video. The special sequences have the format `%(NAME)s`. To clarify, that is a percent symbol followed by a name in parenthesis, followed by a lowercase S. Allowed names are:
+
+ - `id`: The sequence will be replaced by the video identifier.
+ - `url`: The sequence will be replaced by the video URL.
+ - `uploader`: The sequence will be replaced by the nickname of the person who uploaded the video.
+ - `upload_date`: The sequence will be replaced by the upload date in YYYYMMDD format.
+ - `title`: The sequence will be replaced by the video title.
+ - `ext`: The sequence will be replaced by the appropriate extension (like flv or mp4).
+ - `epoch`: The sequence will be replaced by the Unix epoch when creating the file.
+ - `autonumber`: The sequence will be replaced by a five-digit number that will be increased with each download, starting at zero.
+ - `playlist`: The name or the id of the playlist that contains the video.
+ - `playlist_index`: The index of the video in the playlist, a five-digit number.
+
+The current default template is `%(title)s-%(id)s.%(ext)s`.
+
+In some cases, you don't want special characters such as 中, spaces, or &, such as when transferring the downloaded filename to a Windows system or the filename through an 8bit-unsafe channel. In these cases, add the `--restrict-filenames` flag to get a shorter title:
+
+ $ youtube-dl --get-filename -o "%(title)s.%(ext)s" BaW_jenozKc
+ youtube-dl test video ''_ä↭𝕐.mp4 # All kinds of weird characters
+ $ youtube-dl --get-filename -o "%(title)s.%(ext)s" BaW_jenozKc --restrict-filenames
+ youtube-dl_test_video_.mp4 # A simple file name
+
+# VIDEO SELECTION
+
+Videos can be filtered by their upload date using the options `--date`, `--datebefore` or `--dateafter`, they accept dates in two formats:
+
+ - Absolute dates: Dates in the format `YYYYMMDD`.
+ - Relative dates: Dates in the format `(now|today)[+-][0-9](day|week|month|year)(s)?`
+
+Examples:
+
+ $ youtube-dl --dateafter now-6months #will only download the videos uploaded in the last 6 months
+ $ youtube-dl --date 19700101 #will only download the videos uploaded in January 1, 1970
+ $ youtube-dl --dateafter 20000101 --datebefore 20100101 #will only download the videos uploaded between 2000 and 2010