+ # Download YouTube playlist videos in separate directory indexed by video order in a playlist
+ $ youtube-dl -o '%(playlist)s/%(playlist_index)s - %(title)s.%(ext)s' https://www.youtube.com/playlist?list=PLwiyx1dc3P2JR9N8gQaQN_BCvlSlap7re
+
+ # Download Udemy course keeping each chapter in separate directory under MyVideos directory in your home
+ $ youtube-dl -u user -p password -o '~/MyVideos/%(playlist)s/%(chapter_number)s - %(chapter)s/%(title)s.%(ext)s' https://www.udemy.com/java-tutorial/
+
+ # Download entire series season keeping each series and each season in separate directory under C:/MyVideos
+ $ youtube-dl -o "C:/MyVideos/%(series)s/%(season_number)s - %(season)s/%(episode_number)s - %(episode)s.%(ext)s" http://videomore.ru/kino_v_detalayah/5_sezon/367617
+
+ # Stream the video being downloaded to stdout
+ $ youtube-dl -o - BaW_jenozKc
+
+
+
+FORMAT SELECTION
+
+
+By default youtube-dl tries to download the best available quality, i.e.
+if you want the best quality you DON'T NEED to pass any special options,
+youtube-dl will guess it for you by DEFAULT.
+
+But sometimes you may want to download in a different format, for
+example when you are on a slow or intermittent connection. The key
+mechanism for achieving this is so called _format selection_ based on
+which you can explicitly specify desired format, select formats based on
+some criterion or criteria, setup precedence and much more.
+
+The general syntax for format selection is --format FORMAT or shorter
+-f FORMAT where FORMAT is a _selector expression_, i.e. an expression
+that describes format or formats you would like to download.
+
+The simplest case is requesting a specific format, for example with
+-f 22 you can download the format with format code equal to 22. You can
+get the list of available format codes for particular video using
+--list-formats or -F. Note that these format codes are extractor
+specific.
+
+You can also use a file extension (currently 3gp, aac, flv, m4a, mp3,
+mp4, ogg, wav, webm are supported) to download best quality format of
+particular file extension served as a single file, e.g. -f webm will
+download best quality format with webm extension served as a single
+file.
+
+You can also use special names to select particular edge case format: -
+best: Select best quality format represented by single file with video
+and audio - worst: Select worst quality format represented by single
+file with video and audio - bestvideo: Select best quality video only
+format (e.g. DASH video), may not be available - worstvideo: Select
+worst quality video only format, may not be available - bestaudio:
+Select best quality audio only format, may not be available -
+worstaudio: Select worst quality audio only format, may not be available
+
+For example, to download worst quality video only format you can use
+-f worstvideo.
+
+If you want to download multiple videos and they don't have the same
+formats available, you can specify the order of preference using
+slashes. Note that slash is left-associative, i.e. formats on the left
+hand side are preferred, for example -f 22/17/18 will download format 22
+if it's available, otherwise it will download format 17 if it's
+available, otherwise it will download format 18 if it's available,
+otherwise it will complain that no suitable formats are available for
+download.
+
+If you want to download several formats of the same video use comma as a
+separator, e.g. -f 22,17,18 will download all these three formats, of
+course if they are available. Or more sophisticated example combined
+with precedence feature -f 136/137/mp4/bestvideo,140/m4a/bestaudio.
+
+You can also filter the video formats by putting a condition in
+brackets, as in -f "best[height=720]" (or -f "[filesize>10M]").
+
+The following numeric meta fields can be used with comparisons <, <=, >,
+>=, = (equals), != (not equals): - filesize: The number of bytes, if
+known in advance - width: Width of the video, if known - height: Height
+of the video, if known - tbr: Average bitrate of audio and video in
+KBit/s - abr: Average audio bitrate in KBit/s - vbr: Average video
+bitrate in KBit/s - asr: Audio sampling rate in Hertz - fps: Frame rate
+
+Also filtering work for comparisons = (equals), != (not equals), ^=
+(begins with), $= (ends with), *= (contains) and following string meta
+fields: - ext: File extension - acodec: Name of the audio codec in use -
+vcodec: Name of the video codec in use - container: Name of the
+container format - protocol: The protocol that will be used for the
+actual download, lower-case. http, https, rtsp, rtmp, rtmpe, m3u8, or
+m3u8_native
+
+Note that none of the aforementioned meta fields are guaranteed to be
+present since this solely depends on the metadata obtained by particular
+extractor, i.e. the metadata offered by video hoster.
+
+Formats for which the value is not known are excluded unless you put a
+question mark (?) after the operator. You can combine format filters, so
+-f "[height <=? 720][tbr>500]" selects up to 720p videos (or videos
+where the height is not known) with a bitrate of at least 500 KBit/s.
+
+You can merge the video and audio of two formats into a single file
+using -f <video-format>+<audio-format> (requires ffmpeg or avconv
+installed), for example -f bestvideo+bestaudio will download best video
+only format, best audio only format and mux them together with
+ffmpeg/avconv.
+
+Format selectors can also be grouped using parentheses, for example if
+you want to download the best mp4 and webm formats with a height lower
+than 480 you can use -f '(mp4,webm)[height<480]'.
+
+Since the end of April 2015 and version 2015.04.26 youtube-dl uses
+-f bestvideo+bestaudio/best as default format selection (see #5447,
+#5456). If ffmpeg or avconv are installed this results in downloading
+bestvideo and bestaudio separately and muxing them together into a
+single file giving the best overall quality available. Otherwise it
+falls back to best and results in downloading the best available quality
+served as a single file. best is also needed for videos that don't come
+from YouTube because they don't provide the audio and video in two
+different files. If you want to only download some DASH formats (for
+example if you are not interested in getting videos with a resolution
+higher than 1080p), you can add
+-f bestvideo[height<=?1080]+bestaudio/best to your configuration file.
+Note that if you use youtube-dl to stream to stdout (and most likely to
+pipe it to your media player then), i.e. you explicitly specify output
+template as -o -, youtube-dl still uses -f best format selection in
+order to start content delivery immediately to your player and not to
+wait until bestvideo and bestaudio are downloaded and muxed.
+
+If you want to preserve the old format selection behavior (prior to
+youtube-dl 2015.04.26), i.e. you want to download the best available
+quality media served as a single file, you should explicitly specify
+your choice with -f best. You may want to add it to the configuration
+file in order not to type it every time you run youtube-dl.
+
+Examples (note on Windows you may need to use double quotes instead of
+single):
+
+ # Download best mp4 format available or any other best if no mp4 available
+ $ youtube-dl -f 'bestvideo[ext=mp4]+bestaudio[ext=m4a]/best[ext=mp4]/best'
+
+ # Download best format available but not better that 480p
+ $ youtube-dl -f 'bestvideo[height<=480]+bestaudio/best[height<=480]'
+
+ # Download best video only format but no bigger that 50 MB
+ $ youtube-dl -f 'best[filesize<50M]'
+
+ # Download best format available via direct link over HTTP/HTTPS protocol
+ $ youtube-dl -f '(bestvideo+bestaudio/best)[protocol^=http]'
+
+
+