release 2015.03.032015.03.03

1 files changed, 118 insertions, 293 deletions

diff --git a/README.md b/README.md
index f2909e8d6..d05549125 100644
--- a/README.md
+++ b/README.md
@@ -47,211 +47,107 @@ which means you can modify it, redistribute it or use it however you like.
 # OPTIONS
     -h, --help                       print this help text and exit
     --version                        print program version and exit
-    -U, --update                     update this program to latest version. Make
-                                     sure that you have sufficient permissions
-                                     (run with sudo if needed)
-    -i, --ignore-errors              continue on download errors, for example to
-                                     skip unavailable videos in a playlist
-    --abort-on-error                 Abort downloading of further videos (in the
-                                     playlist or the command line) if an error
-                                     occurs
+    -U, --update                     update this program to latest version. Make sure that you have sufficient permissions (run with sudo if needed)
+    -i, --ignore-errors              continue on download errors, for example to skip unavailable videos in a playlist
+    --abort-on-error                 Abort downloading of further videos (in the playlist or the command line) if an error occurs
     --dump-user-agent                display the current browser identification
-    --list-extractors                List all supported extractors and the URLs
-                                     they would handle
-    --extractor-descriptions         Output descriptions of all supported
-                                     extractors
-    --default-search PREFIX          Use this prefix for unqualified URLs. For
-                                     example "gvsearch2:" downloads two videos
-                                     from google videos for  youtube-dl "large
-                                     apple". Use the value "auto" to let
-                                     youtube-dl guess ("auto_warning" to emit a
-                                     warning when guessing). "error" just throws
-                                     an error. The default value "fixup_error"
-                                     repairs broken URLs, but emits an error if
-                                     this is not possible instead of searching.
-    --ignore-config                  Do not read configuration files. When given
-                                     in the global configuration file /etc
-                                     /youtube-dl.conf: Do not read the user
-                                     configuration in ~/.config/youtube-
-                                     dl/config (%APPDATA%/youtube-dl/config.txt
-                                     on Windows)
-    --flat-playlist                  Do not extract the videos of a playlist,
-                                     only list them.
+    --list-extractors                List all supported extractors and the URLs they would handle
+    --extractor-descriptions         Output descriptions of all supported extractors
+    --default-search PREFIX          Use this prefix for unqualified URLs. For example "gvsearch2:" downloads two videos from google videos for  youtube-dl "large apple".
+                                     Use the value "auto" to let youtube-dl guess ("auto_warning" to emit a warning when guessing). "error" just throws an error. The
+                                     default value "fixup_error" repairs broken URLs, but emits an error if this is not possible instead of searching.
+    --ignore-config                  Do not read configuration files. When given in the global configuration file /etc/youtube-dl.conf: Do not read the user configuration
+                                     in ~/.config/youtube-dl/config (%APPDATA%/youtube-dl/config.txt on Windows)
+    --flat-playlist                  Do not extract the videos of a playlist, only list them.
     --no-color                       Do not emit color codes in output.
 
 ## Network Options:
-    --proxy URL                      Use the specified HTTP/HTTPS proxy. Pass in
-                                     an empty string (--proxy "") for direct
-                                     connection
+    --proxy URL                      Use the specified HTTP/HTTPS proxy. Pass in an empty string (--proxy "") for direct connection
     --socket-timeout SECONDS         Time to wait before giving up, in seconds
-    --source-address IP              Client-side IP address to bind to
-                                     (experimental)
-    -4, --force-ipv4                 Make all connections via IPv4
-                                     (experimental)
-    -6, --force-ipv6                 Make all connections via IPv6
-                                     (experimental)
+    --source-address IP              Client-side IP address to bind to (experimental)
+    -4, --force-ipv4                 Make all connections via IPv4 (experimental)
+    -6, --force-ipv6                 Make all connections via IPv6 (experimental)
 
 ## Video Selection:
     --playlist-start NUMBER          playlist video to start at (default is 1)
     --playlist-end NUMBER            playlist video to end at (default is last)
-    --playlist-items ITEM_SPEC       playlist video items to download. Specify
-                                     indices of the videos in the playlist
-                                     seperated by commas like: "--playlist-items
-                                     1,2,5,8" if you want to download videos
-                                     indexed 1, 2, 5, 8 in the playlist. You can
-                                     specify range: "--playlist-items
-                                     1-3,7,10-13", it will download the videos
-                                     at index 1, 2, 3, 7, 10, 11, 12 and 13.
-    --match-title REGEX              download only matching titles (regex or
-                                     caseless sub-string)
-    --reject-title REGEX             skip download for matching titles (regex or
-                                     caseless sub-string)
+    --playlist-items ITEM_SPEC       playlist video items to download. Specify indices of the videos in the playlist seperated by commas like: "--playlist-items 1,2,5,8"
+                                     if you want to download videos indexed 1, 2, 5, 8 in the playlist. You can specify range: "--playlist-items 1-3,7,10-13", it will
+                                     download the videos at index 1, 2, 3, 7, 10, 11, 12 and 13.
+    --match-title REGEX              download only matching titles (regex or caseless sub-string)
+    --reject-title REGEX             skip download for matching titles (regex or caseless sub-string)
     --max-downloads NUMBER           Abort after downloading NUMBER files
-    --min-filesize SIZE              Do not download any videos smaller than
-                                     SIZE (e.g. 50k or 44.6m)
-    --max-filesize SIZE              Do not download any videos larger than SIZE
-                                     (e.g. 50k or 44.6m)
+    --min-filesize SIZE              Do not download any videos smaller than SIZE (e.g. 50k or 44.6m)
+    --max-filesize SIZE              Do not download any videos larger than SIZE (e.g. 50k or 44.6m)
     --date DATE                      download only videos uploaded in this date
-    --datebefore DATE                download only videos uploaded on or before
-                                     this date (i.e. inclusive)
-    --dateafter DATE                 download only videos uploaded on or after
-                                     this date (i.e. inclusive)
-    --min-views COUNT                Do not download any videos with less than
-                                     COUNT views
-    --max-views COUNT                Do not download any videos with more than
-                                     COUNT views
-    --match-filter FILTER            (Experimental) Generic video filter.
-                                     Specify any key (see help for -o for a list
-                                     of available keys) to match if the key is
-                                     present, !key to check if the key is not
-                                     present,key > NUMBER (like "comment_count >
-                                     12", also works with >=, <, <=, !=, =) to
-                                     compare against a number, and & to require
-                                     multiple matches. Values which are not
-                                     known are excluded unless you put a
-                                     question mark (?) after the operator.For
-                                     example, to only match videos that have
-                                     been liked more than 100 times and disliked
-                                     less than 50 times (or the dislike
-                                     functionality is not available at the given
-                                     service), but who also have a description,
-                                     use  --match-filter "like_count > 100 &
+    --datebefore DATE                download only videos uploaded on or before this date (i.e. inclusive)
+    --dateafter DATE                 download only videos uploaded on or after this date (i.e. inclusive)
+    --min-views COUNT                Do not download any videos with less than COUNT views
+    --max-views COUNT                Do not download any videos with more than COUNT views
+    --match-filter FILTER            (Experimental) Generic video filter. Specify any key (see help for -o for a list of available keys) to match if the key is present,
+                                     !key to check if the key is not present,key > NUMBER (like "comment_count > 12", also works with >=, <, <=, !=, =) to compare against
+                                     a number, and & to require multiple matches. Values which are not known are excluded unless you put a question mark (?) after the
+                                     operator.For example, to only match videos that have been liked more than 100 times and disliked less than 50 times (or the dislike
+                                     functionality is not available at the given service), but who also have a description, use  --match-filter "like_count > 100 &
                                      dislike_count <? 50 & description" .
-    --no-playlist                    If the URL refers to a video and a
-                                     playlist, download only the video.
-    --yes-playlist                   If the URL refers to a video and a
-                                     playlist, download the playlist.
-    --age-limit YEARS                download only videos suitable for the given
-                                     age
-    --download-archive FILE          Download only videos not listed in the
-                                     archive file. Record the IDs of all
-                                     downloaded videos in it.
-    --include-ads                    Download advertisements as well
-                                     (experimental)
+    --no-playlist                    If the URL refers to a video and a playlist, download only the video.
+    --yes-playlist                   If the URL refers to a video and a playlist, download the playlist.
+    --age-limit YEARS                download only videos suitable for the given age
+    --download-archive FILE          Download only videos not listed in the archive file. Record the IDs of all downloaded videos in it.
+    --include-ads                    Download advertisements as well (experimental)
 
 ## Download Options:
-    -r, --rate-limit LIMIT           maximum download rate in bytes per second
-                                     (e.g. 50K or 4.2M)
-    -R, --retries RETRIES            number of retries (default is 10), or
-                                     "infinite".
-    --buffer-size SIZE               size of download buffer (e.g. 1024 or 16K)
-                                     (default is 1024)
-    --no-resize-buffer               do not automatically adjust the buffer
-                                     size. By default, the buffer size is
-                                     automatically resized from an initial value
-                                     of SIZE.
+    -r, --rate-limit LIMIT           maximum download rate in bytes per second (e.g. 50K or 4.2M)
+    -R, --retries RETRIES            number of retries (default is 10), or "infinite".
+    --buffer-size SIZE               size of download buffer (e.g. 1024 or 16K) (default is 1024)
+    --no-resize-buffer               do not automatically adjust the buffer size. By default, the buffer size is automatically resized from an initial value of SIZE.
     --playlist-reverse               Download playlist videos in reverse order
-    --xattr-set-filesize             (experimental) set file xattribute
-                                     ytdl.filesize with expected filesize
-    --hls-prefer-native              (experimental) Use the native HLS
-                                     downloader instead of ffmpeg.
-    --external-downloader COMMAND    (experimental) Use the specified external
-                                     downloader. Currently supports
-                                     aria2c,curl,wget
+    --xattr-set-filesize             (experimental) set file xattribute ytdl.filesize with expected filesize
+    --hls-prefer-native              (experimental) Use the native HLS downloader instead of ffmpeg.
+    --external-downloader COMMAND    Use the specified external downloader. Currently supports aria2c,curl,wget
+    --external-downloader-args ARGS  Give these arguments to the external downloader.
 
 ## Filesystem Options:
-    -a, --batch-file FILE            file containing URLs to download ('-' for
-                                     stdin)
+    -a, --batch-file FILE            file containing URLs to download ('-' for stdin)
     --id                             use only video ID in file name
-    -o, --output TEMPLATE            output filename template. Use %(title)s to
-                                     get the title, %(uploader)s for the
-                                     uploader name, %(uploader_id)s for the
-                                     uploader nickname if different,
-                                     %(autonumber)s to get an automatically
-                                     incremented number, %(ext)s for the
-                                     filename extension, %(format)s for the
-                                     format description (like "22 - 1280x720" or
-                                     "HD"), %(format_id)s for the unique id of
-                                     the format (like Youtube's itags: "137"),
-                                     %(upload_date)s for the upload date
-                                     (YYYYMMDD), %(extractor)s for the provider
-                                     (youtube, metacafe, etc), %(id)s for the
-                                     video id, %(playlist_title)s,
-                                     %(playlist_id)s, or %(playlist)s (=title if
-                                     present, ID otherwise) for the playlist the
-                                     video is in, %(playlist_index)s for the
-                                     position in the playlist. %(height)s and
-                                     %(width)s for the width and height of the
-                                     video format. %(resolution)s for a textual
-                                     description of the resolution of the video
-                                     format. %% for a literal percent. Use - to
-                                     output to stdout. Can also be used to
-                                     download to a different directory, for
-                                     example with -o '/my/downloads/%(uploader)s
-                                     /%(title)s-%(id)s.%(ext)s' .
-    --autonumber-size NUMBER         Specifies the number of digits in
-                                     %(autonumber)s when it is present in output
-                                     filename template or --auto-number option
-                                     is given
-    --restrict-filenames             Restrict filenames to only ASCII
-                                     characters, and avoid "&" and spaces in
-                                     filenames
-    -A, --auto-number                [deprecated; use  -o
-                                     "%(autonumber)s-%(title)s.%(ext)s" ] number
-                                     downloaded files starting from 00000
-    -t, --title                      [deprecated] use title in file name
-                                     (default)
+    -o, --output TEMPLATE            output filename template. Use %(title)s to get the title, %(uploader)s for the uploader name, %(uploader_id)s for the uploader
+                                     nickname if different, %(autonumber)s to get an automatically incremented number, %(ext)s for the filename extension, %(format)s for
+                                     the format description (like "22 - 1280x720" or "HD"), %(format_id)s for the unique id of the format (like Youtube's itags: "137"),
+                                     %(upload_date)s for the upload date (YYYYMMDD), %(extractor)s for the provider (youtube, metacafe, etc), %(id)s for the video id,
+                                     %(playlist_title)s, %(playlist_id)s, or %(playlist)s (=title if present, ID otherwise) for the playlist the video is in,
+                                     %(playlist_index)s for the position in the playlist. %(height)s and %(width)s for the width and height of the video format.
+                                     %(resolution)s for a textual description of the resolution of the video format. %% for a literal percent. Use - to output to stdout.
+                                     Can also be used to download to a different directory, for example with -o '/my/downloads/%(uploader)s/%(title)s-%(id)s.%(ext)s' .
+    --autonumber-size NUMBER         Specifies the number of digits in %(autonumber)s when it is present in output filename template or --auto-number option is given
+    --restrict-filenames             Restrict filenames to only ASCII characters, and avoid "&" and spaces in filenames
+    -A, --auto-number                [deprecated; use  -o "%(autonumber)s-%(title)s.%(ext)s" ] number downloaded files starting from 00000
+    -t, --title                      [deprecated] use title in file name (default)
     -l, --literal                    [deprecated] alias of --title
     -w, --no-overwrites              do not overwrite files
-    -c, --continue                   force resume of partially downloaded files.
-                                     By default, youtube-dl will resume
-                                     downloads if possible.
-    --no-continue                    do not resume partially downloaded files
-                                     (restart from beginning)
-    --no-part                        do not use .part files - write directly
-                                     into output file
-    --no-mtime                       do not use the Last-modified header to set
-                                     the file modification time
-    --write-description              write video description to a .description
-                                     file
+    -c, --continue                   force resume of partially downloaded files. By default, youtube-dl will resume downloads if possible.
+    --no-continue                    do not resume partially downloaded files (restart from beginning)
+    --no-part                        do not use .part files - write directly into output file
+    --no-mtime                       do not use the Last-modified header to set the file modification time
+    --write-description              write video description to a .description file
     --write-info-json                write video metadata to a .info.json file
-    --write-annotations              write video annotations to a .annotation
-                                     file
-    --load-info FILE                 json file containing the video information
-                                     (created with the "--write-json" option)
-    --cookies FILE                   file to read cookies from and dump cookie
-                                     jar in
-    --cache-dir DIR                  Location in the filesystem where youtube-dl
-                                     can store some downloaded information
-                                     permanently. By default $XDG_CACHE_HOME
-                                     /youtube-dl or ~/.cache/youtube-dl . At the
-                                     moment, only YouTube player files (for
-                                     videos with obfuscated signatures) are
-                                     cached, but that may change.
+    --write-annotations              write video annotations to a .annotation file
+    --load-info FILE                 json file containing the video information (created with the "--write-json" option)
+    --cookies FILE                   file to read cookies from and dump cookie jar in
+    --cache-dir DIR                  Location in the filesystem where youtube-dl can store some downloaded information permanently. By default $XDG_CACHE_HOME/youtube-dl
+                                     or ~/.cache/youtube-dl . At the moment, only YouTube player files (for videos with obfuscated signatures) are cached, but that may
+                                     change.
     --no-cache-dir                   Disable filesystem caching
     --rm-cache-dir                   Delete all filesystem cache files
 
 ## Thumbnail images:
     --write-thumbnail                write thumbnail image to disk
     --write-all-thumbnails           write all thumbnail image formats to disk
-    --list-thumbnails                Simulate and list all available thumbnail
-                                     formats
+    --list-thumbnails                Simulate and list all available thumbnail formats
 
 ## Verbosity / Simulation Options:
     -q, --quiet                      activates quiet mode
     --no-warnings                    Ignore warnings
-    -s, --simulate                   do not download the video and do not write
-                                     anything to disk
+    -s, --simulate                   do not download the video and do not write anything to disk
     --skip-download                  do not download the video
     -g, --get-url                    simulate, quiet but print URL
     -e, --get-title                  simulate, quiet but print title
@@ -261,155 +157,84 @@ which means you can modify it, redistribute it or use it however you like.
     --get-duration                   simulate, quiet but print video length
     --get-filename                   simulate, quiet but print output filename
     --get-format                     simulate, quiet but print output format
-    -j, --dump-json                  simulate, quiet but print JSON information.
-                                     See --output for a description of available
-                                     keys.
-    -J, --dump-single-json           simulate, quiet but print JSON information
-                                     for each command-line argument. If the URL
-                                     refers to a playlist, dump the whole
-                                     playlist information in a single line.
-    --print-json                     Be quiet and print the video information as
-                                     JSON (video is still being downloaded).
+    -j, --dump-json                  simulate, quiet but print JSON information. See --output for a description of available keys.
+    -J, --dump-single-json           simulate, quiet but print JSON information for each command-line argument. If the URL refers to a playlist, dump the whole playlist
+                                     information in a single line.
+    --print-json                     Be quiet and print the video information as JSON (video is still being downloaded).
     --newline                        output progress bar as new lines
     --no-progress                    do not print progress bar
     --console-title                  display progress in console titlebar
     -v, --verbose                    print various debugging information
-    --dump-intermediate-pages        print downloaded pages to debug problems
-                                     (very verbose)
-    --write-pages                    Write downloaded intermediary pages to
-                                     files in the current directory to debug
-                                     problems
+    --dump-intermediate-pages        print downloaded pages to debug problems (very verbose)
+    --write-pages                    Write downloaded intermediary pages to files in the current directory to debug problems
     --print-traffic                  Display sent and read HTTP traffic
-    -C, --call-home                  Contact the youtube-dl server for
-                                     debugging.
-    --no-call-home                   Do NOT contact the youtube-dl server for
-                                     debugging.
+    -C, --call-home                  Contact the youtube-dl server for debugging.
+    --no-call-home                   Do NOT contact the youtube-dl server for debugging.
 
 ## Workarounds:
     --encoding ENCODING              Force the specified encoding (experimental)
     --no-check-certificate           Suppress HTTPS certificate validation.
-    --prefer-insecure                Use an unencrypted connection to retrieve
-                                     information about the video. (Currently
-                                     supported only for YouTube)
+    --prefer-insecure                Use an unencrypted connection to retrieve information about the video. (Currently supported only for YouTube)
     --user-agent UA                  specify a custom user agent
-    --referer URL                    specify a custom referer, use if the video
-                                     access is restricted to one domain
-    --add-header FIELD:VALUE         specify a custom HTTP header and its value,
-                                     separated by a colon ':'. You can use this
-                                     option multiple times
-    --bidi-workaround                Work around terminals that lack
-                                     bidirectional text support. Requires bidiv
-                                     or fribidi executable in PATH
-    --sleep-interval SECONDS         Number of seconds to sleep before each
-                                     download.
+    --referer URL                    specify a custom referer, use if the video access is restricted to one domain
+    --add-header FIELD:VALUE         specify a custom HTTP header and its value, separated by a colon ':'. You can use this option multiple times
+    --bidi-workaround                Work around terminals that lack bidirectional text support. Requires bidiv or fribidi executable in PATH
+    --sleep-interval SECONDS         Number of seconds to sleep before each download.
 
 ## Video Format Options:
-    -f, --format FORMAT              video format code, specify the order of
-                                     preference using slashes, as in -f 22/17/18
-                                     .  Instead of format codes, you can select
-                                     by extension for the extensions aac, m4a,
-                                     mp3, mp4, ogg, wav, webm. You can also use
-                                     the special names "best", "bestvideo",
-                                     "bestaudio", "worst".  You can filter the
-                                     video results by putting a condition in
-                                     brackets, as in -f "best[height=720]" (or
-                                     -f "[filesize>10M]").  This works for
-                                     filesize, height, width, tbr, abr, vbr,
-                                     asr, and fps and the comparisons <, <=, >,
-                                     >=, =, != and for ext, acodec, vcodec,
-                                     container, and protocol and the comparisons
-                                     =, != . 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. By default, youtube-dl will pick
-                                     the best quality. Use commas to download
-                                     multiple audio formats, such as -f
-                                     136/137/mp4/bestvideo,140/m4a/bestaudio.
-                                     You can merge the video and audio of two
-                                     formats into a single file using -f <video-
-                                     format>+<audio-format> (requires ffmpeg or
-                                     avconv), for example -f
+    -f, --format FORMAT              video format code, specify the order of preference using slashes, as in -f 22/17/18 .  Instead of format codes, you can select by
+                                     extension for the extensions aac, m4a, mp3, mp4, ogg, wav, webm. You can also use the special names "best", "bestvideo", "bestaudio",
+                                     "worst".  You can filter the video results by putting a condition in brackets, as in -f "best[height=720]" (or -f "[filesize>10M]").
+                                     This works for filesize, height, width, tbr, abr, vbr, asr, and fps and the comparisons <, <=, >, >=, =, != and for ext, acodec,
+                                     vcodec, container, and protocol and the comparisons =, != . 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. By default, youtube-dl will pick the best quality.
+                                     Use commas to download multiple audio formats, such as -f  136/137/mp4/bestvideo,140/m4a/bestaudio. You can merge the video and audio
+                                     of two formats into a single file using -f <video-format>+<audio-format> (requires ffmpeg or avconv), for example -f
                                      bestvideo+bestaudio.
     --all-formats                    download all available video formats
-    --prefer-free-formats            prefer free video formats unless a specific
-                                     one is requested
+    --prefer-free-formats            prefer free video formats unless a specific one is requested
     --max-quality FORMAT             highest quality format to download
     -F, --list-formats               list all available formats
-    --youtube-skip-dash-manifest     Do not download the DASH manifest on
-                                     YouTube videos
-    --merge-output-format FORMAT     If a merge is required (e.g.
-                                     bestvideo+bestaudio), output to given
-                                     container format. One of mkv, mp4, ogg,
-                                     webm, flv.Ignored if no merge is required
+    --youtube-skip-dash-manifest     Do not download the DASH manifest on YouTube videos
+    --merge-output-format FORMAT     If a merge is required (e.g. bestvideo+bestaudio), output to given container format. One of mkv, mp4, ogg, webm, flv.Ignored if no
+                                     merge is required
 
 ## Subtitle Options:
     --write-sub                      write subtitle file
-    --write-auto-sub                 write automatic subtitle file (youtube
-                                     only)
-    --all-subs                       downloads all the available subtitles of
-                                     the video
+    --write-auto-sub                 write automatic subtitle file (youtube only)
+    --all-subs                       downloads all the available subtitles of the video
     --list-subs                      lists all available subtitles for the video
-    --sub-format FORMAT              subtitle format, accepts formats
-                                     preference, for example: "ass/srt/best"
-    --sub-lang LANGS                 languages of the subtitles to download
-                                     (optional) separated by commas, use IETF
-                                     language tags like 'en,pt'
+    --sub-format FORMAT              subtitle format, accepts formats preference, for example: "ass/srt/best"
+    --sub-lang LANGS                 languages of the subtitles to download (optional) separated by commas, use IETF language tags like 'en,pt'
 
 ## Authentication Options:
     -u, --username USERNAME          login with this account ID
-    -p, --password PASSWORD          account password. If this option is left
-                                     out, youtube-dl will ask interactively.
+    -p, --password PASSWORD          account password. If this option is left out, youtube-dl will ask interactively.
     -2, --twofactor TWOFACTOR        two-factor auth code
     -n, --netrc                      use .netrc authentication data
     --video-password PASSWORD        video password (vimeo, smotri)
 
 ## Post-processing Options:
-    -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|mkv)
-    -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
-    --embed-subs                     embed subtitles in the video (only for mp4
-                                     videos)
+    -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|mkv)
+    -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
+    --embed-subs                     embed subtitles in the video (only for mp4 videos)
     --embed-thumbnail                embed thumbnail in the audio as cover art
     --add-metadata                   write metadata to the video file
-    --xattrs                         write metadata to the video file's xattrs
-                                     (using dublin core and xdg standards)
-    --fixup POLICY                   Automatically correct known faults of the
-                                     file. One of never (do nothing), warn (only
-                                     emit a warning), detect_or_warn(the
-                                     default; fix file if we can, warn
-                                     otherwise)
-    --prefer-avconv                  Prefer avconv over ffmpeg for running the
-                                     postprocessors (default)
-    --prefer-ffmpeg                  Prefer ffmpeg over avconv for running the
-                                     postprocessors
-    --ffmpeg-location PATH           Location of the ffmpeg/avconv binary;
-                                     either the path to the binary or its
-                                     containing directory.
-    --exec CMD                       Execute a command on the file after
-                                     downloading, similar to find's -exec
-                                     syntax. Example: --exec 'adb push {}
-                                     /sdcard/Music/ && rm {}'
-    --convert-subtitles FORMAT       Convert the subtitles to other format
-                                     (currently supported: srt|ass|vtt)
+    --xattrs                         write metadata to the video file's xattrs (using dublin core and xdg standards)
+    --fixup POLICY                   Automatically correct known faults of the file. One of never (do nothing), warn (only emit a warning), detect_or_warn(the default;
+                                     fix file if we can, warn otherwise)
+    --prefer-avconv                  Prefer avconv over ffmpeg for running the postprocessors (default)
+    --prefer-ffmpeg                  Prefer ffmpeg over avconv for running the postprocessors
+    --ffmpeg-location PATH           Location of the ffmpeg/avconv binary; either the path to the binary or its containing directory.
+    --exec CMD                       Execute a command on the file after downloading, similar to find's -exec syntax. Example: --exec 'adb push {} /sdcard/Music/ && rm
+                                     {}'
+    --convert-subtitles FORMAT       Convert the subtitles to other format (currently supported: srt|ass|vtt)
 
 # CONFIGURATION