release 2021.01.24 2021.01.24

1 files changed, 399 insertions, 362 deletions

diff --git a/README.md b/README.md
index 8c2569aaa..94c34d89a 100644
--- a/README.md
+++ b/README.md
@@ -52,394 +52,431 @@ Alternatively, refer to the [developer instructions](#developer-instructions) fo
     youtube-dl [OPTIONS] URL [URL...]
 
 # 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
-    --dump-user-agent                Display the current browser identification
-    --list-extractors                List all supported extractors
-    --extractor-descriptions         Output descriptions of all supported
-                                     extractors
-    --force-generic-extractor        Force extraction to use the generic
-                                     extractor
-    --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)
-    --config-location PATH           Location of the configuration file; either
-                                     the path to the config or its containing
-                                     directory.
-    --flat-playlist                  Do not extract the videos of a playlist,
-                                     only list them.
-    --mark-watched                   Mark videos watched (YouTube only)
-    --no-mark-watched                Do not mark videos watched (YouTube only)
-    --no-color                       Do not emit color codes in output
+    -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
+    --dump-user-agent                    Display the current browser
+                                         identification
+    --list-extractors                    List all supported extractors
+    --extractor-descriptions             Output descriptions of all supported
+                                         extractors
+    --force-generic-extractor            Force extraction to use the generic
+                                         extractor
+    --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)
+    --config-location PATH               Location of the configuration file;
+                                         either the path to the config or its
+                                         containing directory.
+    --flat-playlist                      Do not extract the videos of a
+                                         playlist, only list them.
+    --mark-watched                       Mark videos watched (YouTube only)
+    --no-mark-watched                    Do not mark videos watched (YouTube
+                                         only)
+    --no-color                           Do not emit color codes in output
 
 ## Network Options:
-    --proxy URL                      Use the specified HTTP/HTTPS/SOCKS proxy.
-                                     To enable SOCKS proxy, specify a proper
-                                     scheme. For example
-                                     socks5://127.0.0.1:1080/. 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
-    -4, --force-ipv4                 Make all connections via IPv4
-    -6, --force-ipv6                 Make all connections via IPv6
+    --proxy URL                          Use the specified HTTP/HTTPS/SOCKS
+                                         proxy. To enable SOCKS proxy, specify a
+                                         proper scheme. For example
+                                         socks5://127.0.0.1:1080/. 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
+    -4, --force-ipv4                     Make all connections via IPv4
+    -6, --force-ipv6                     Make all connections via IPv6
 
 ## Geo Restriction:
-    --geo-verification-proxy URL     Use this proxy to verify the IP address for
-                                     some geo-restricted sites. The default
-                                     proxy specified by --proxy (or none, if the
-                                     option is not present) is used for the
-                                     actual downloading.
-    --geo-bypass                     Bypass geographic restriction via faking
-                                     X-Forwarded-For HTTP header
-    --no-geo-bypass                  Do not bypass geographic restriction via
-                                     faking X-Forwarded-For HTTP header
-    --geo-bypass-country CODE        Force bypass geographic restriction with
-                                     explicitly provided two-letter ISO 3166-2
-                                     country code
-    --geo-bypass-ip-block IP_BLOCK   Force bypass geographic restriction with
-                                     explicitly provided IP block in CIDR
-                                     notation
+    --geo-verification-proxy URL         Use this proxy to verify the IP address
+                                         for some geo-restricted sites. The
+                                         default proxy specified by --proxy (or
+                                         none, if the option is not present) is
+                                         used for the actual downloading.
+    --geo-bypass                         Bypass geographic restriction via
+                                         faking X-Forwarded-For HTTP header
+    --no-geo-bypass                      Do not bypass geographic restriction
+                                         via faking X-Forwarded-For HTTP header
+    --geo-bypass-country CODE            Force bypass geographic restriction
+                                         with explicitly provided two-letter ISO
+                                         3166-2 country code
+    --geo-bypass-ip-block IP_BLOCK       Force bypass geographic restriction
+                                         with explicitly provided IP block in
+                                         CIDR notation
 
 ## 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
-                                     separated 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)
-    --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            Generic video filter. Specify any key (see
-                                     the "OUTPUT TEMPLATE" 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, key = 'LITERAL'
-                                     (like "uploader = 'Mike Smith'", also works
-                                     with !=) to match against a string literal
-                                     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                    Download only the video, if the URL refers
-                                     to a video and a playlist.
-    --yes-playlist                   Download the playlist, if the URL refers to
-                                     a video and a 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)
+    --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 separated 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)
+    --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                Generic video filter. Specify any key
+                                         (see the "OUTPUT TEMPLATE" 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, key = 'LITERAL' (like "uploader
+                                         = 'Mike Smith'", also works with !=) to
+                                         match against a string literal 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                        Download only the video, if the URL
+                                         refers to a video and a playlist.
+    --yes-playlist                       Download the playlist, if the URL
+                                         refers to a video and a 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, --limit-rate RATE            Maximum download rate in bytes per second
-                                     (e.g. 50K or 4.2M)
-    -R, --retries RETRIES            Number of retries (default is 10), or
-                                     "infinite".
-    --fragment-retries RETRIES       Number of retries for a fragment (default
-                                     is 10), or "infinite" (DASH, hlsnative and
-                                     ISM)
-    --skip-unavailable-fragments     Skip unavailable fragments (DASH, hlsnative
-                                     and ISM)
-    --abort-on-unavailable-fragment  Abort downloading when some fragment is not
-                                     available
-    --keep-fragments                 Keep downloaded fragments on disk after
-                                     downloading is finished; fragments are
-                                     erased by default
-    --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.
-    --http-chunk-size SIZE           Size of a chunk for chunk-based HTTP
-                                     downloading (e.g. 10485760 or 10M) (default
-                                     is disabled). May be useful for bypassing
-                                     bandwidth throttling imposed by a webserver
-                                     (experimental)
-    --playlist-reverse               Download playlist videos in reverse order
-    --playlist-random                Download playlist videos in random order
-    --xattr-set-filesize             Set file xattribute ytdl.filesize with
-                                     expected file size
-    --hls-prefer-native              Use the native HLS downloader instead of
-                                     ffmpeg
-    --hls-prefer-ffmpeg              Use ffmpeg instead of the native HLS
-                                     downloader
-    --hls-use-mpegts                 Use the mpegts container for HLS videos,
-                                     allowing to play the video while
-                                     downloading (some players may not be able
-                                     to play it)
-    --external-downloader COMMAND    Use the specified external downloader.
-                                     Currently supports
-                                     aria2c,avconv,axel,curl,ffmpeg,httpie,wget
-    --external-downloader-args ARGS  Give these arguments to the external
-                                     downloader
+    -r, --limit-rate RATE                Maximum download rate in bytes per
+                                         second (e.g. 50K or 4.2M)
+    -R, --retries RETRIES                Number of retries (default is 10), or
+                                         "infinite".
+    --fragment-retries RETRIES           Number of retries for a fragment
+                                         (default is 10), or "infinite" (DASH,
+                                         hlsnative and ISM)
+    --skip-unavailable-fragments         Skip unavailable fragments (DASH,
+                                         hlsnative and ISM)
+    --abort-on-unavailable-fragment      Abort downloading when some fragment is
+                                         not available
+    --keep-fragments                     Keep downloaded fragments on disk after
+                                         downloading is finished; fragments are
+                                         erased by default
+    --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.
+    --http-chunk-size SIZE               Size of a chunk for chunk-based HTTP
+                                         downloading (e.g. 10485760 or 10M)
+                                         (default is disabled). May be useful
+                                         for bypassing bandwidth throttling
+                                         imposed by a webserver (experimental)
+    --playlist-reverse                   Download playlist videos in reverse
+                                         order
+    --playlist-random                    Download playlist videos in random
+                                         order
+    --xattr-set-filesize                 Set file xattribute ytdl.filesize with
+                                         expected file size
+    --hls-prefer-native                  Use the native HLS downloader instead
+                                         of ffmpeg
+    --hls-prefer-ffmpeg                  Use ffmpeg instead of the native HLS
+                                         downloader
+    --hls-use-mpegts                     Use the mpegts container for HLS
+                                         videos, allowing to play the video
+                                         while downloading (some players may not
+                                         be able to play it)
+    --external-downloader COMMAND        Use the specified external downloader.
+                                         Currently supports aria2c,avconv,axel,c
+                                         url,ffmpeg,httpie,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), one URL per line. Lines starting
-                                     with '#', ';' or ']' are considered as
-                                     comments and ignored.
-    --id                             Use only video ID in file name
-    -o, --output TEMPLATE            Output filename template, see the "OUTPUT
-                                     TEMPLATE" for all the info
-    --autonumber-start NUMBER        Specify the start value for %(autonumber)s
-                                     (default is 1)
-    --restrict-filenames             Restrict filenames to only ASCII
-                                     characters, and avoid "&" and spaces in
-                                     filenames
-    -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
-    --write-info-json                Write video metadata to a .info.json file
-    --write-annotations              Write video annotations to a
-                                     .annotations.xml file
-    --load-info-json FILE            JSON file containing the video information
-                                     (created with the "--write-info-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
+    -a, --batch-file FILE                File containing URLs to download ('-'
+                                         for stdin), one URL per line. Lines
+                                         starting with '#', ';' or ']' are
+                                         considered as comments and ignored.
+    --id                                 Use only video ID in file name
+    -o, --output TEMPLATE                Output filename template, see the
+                                         "OUTPUT TEMPLATE" for all the info
+    --output-na-placeholder PLACEHOLDER  Placeholder value for unavailable meta
+                                         fields in output filename template
+                                         (default is "NA")
+    --autonumber-start NUMBER            Specify the start value for
+                                         %(autonumber)s (default is 1)
+    --restrict-filenames                 Restrict filenames to only ASCII
+                                         characters, and avoid "&" and spaces in
+                                         filenames
+    -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
+    --write-info-json                    Write video metadata to a .info.json
+                                         file
+    --write-annotations                  Write video annotations to a
+                                         .annotations.xml file
+    --load-info-json FILE                JSON file containing the video
+                                         information (created with the "--write-
+                                         info-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
+    --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
 
 ## Verbosity / Simulation Options:
-    -q, --quiet                      Activate quiet mode
-    --no-warnings                    Ignore warnings
-    -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
-    --get-id                         Simulate, quiet but print id
-    --get-thumbnail                  Simulate, quiet but print thumbnail URL
-    --get-description                Simulate, quiet but print video description
-    --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 the "OUTPUT TEMPLATE" 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-pages                     Print downloaded pages encoded using base64
-                                     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
+    -q, --quiet                          Activate quiet mode
+    --no-warnings                        Ignore warnings
+    -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
+    --get-id                             Simulate, quiet but print id
+    --get-thumbnail                      Simulate, quiet but print thumbnail URL
+    --get-description                    Simulate, quiet but print video
+                                         description
+    --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 the "OUTPUT TEMPLATE"
+                                         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-pages                         Print downloaded pages encoded using
+                                         base64 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
 
 ## 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)
-    --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 when used alone or a lower bound
-                                     of a range for randomized sleep before each
-                                     download (minimum possible number of
-                                     seconds to sleep) when used along with
-                                     --max-sleep-interval.
-    --max-sleep-interval SECONDS     Upper bound of a range for randomized sleep
-                                     before each download (maximum possible
-                                     number of seconds to sleep). Must only be
-                                     used along with --min-sleep-interval.
+    --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)
+    --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 when used alone or a lower
+                                         bound of a range for randomized sleep
+                                         before each download (minimum possible
+                                         number of seconds to sleep) when used
+                                         along with --max-sleep-interval.
+    --max-sleep-interval SECONDS         Upper bound of a range for randomized
+                                         sleep before each download (maximum
+                                         possible number of seconds to sleep).
+                                         Must only be used along with --min-
+                                         sleep-interval.
 
 ## Video Format Options:
-    -f, --format FORMAT              Video format code, see the "FORMAT
-                                     SELECTION" for all the info
-    --all-formats                    Download all available video formats
-    --prefer-free-formats            Prefer free video formats unless a specific
-                                     one is requested
-    -F, --list-formats               List all available formats of requested
-                                     videos
-    --youtube-skip-dash-manifest     Do not download the DASH manifests and
-                                     related data 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
+    -f, --format FORMAT                  Video format code, see the "FORMAT
+                                         SELECTION" for all the info
+    --all-formats                        Download all available video formats
+    --prefer-free-formats                Prefer free video formats unless a
+                                         specific one is requested
+    -F, --list-formats                   List all available formats of requested
+                                         videos
+    --youtube-skip-dash-manifest         Do not download the DASH manifests and
+                                         related data 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 automatically generated subtitle file
-                                     (YouTube only)
-    --all-subs                       Download all the available subtitles of the
-                                     video
-    --list-subs                      List all available subtitles for the video
-    --sub-format FORMAT              Subtitle format, accepts formats
-                                     preference, for example: "srt" or
-                                     "ass/srt/best"
-    --sub-lang LANGS                 Languages of the subtitles to download
-                                     (optional) separated by commas, use --list-
-                                     subs for available language tags
+    --write-sub                          Write subtitle file
+    --write-auto-sub                     Write automatically generated subtitle
+                                         file (YouTube only)
+    --all-subs                           Download all the available subtitles of
+                                         the video
+    --list-subs                          List all available subtitles for the
+                                         video
+    --sub-format FORMAT                  Subtitle format, accepts formats
+                                         preference, for example: "srt" or
+                                         "ass/srt/best"
+    --sub-lang LANGS                     Languages of the subtitles to download
+                                         (optional) separated by commas, use
+                                         --list-subs for available language tags
 
 ## 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.
-    -2, --twofactor TWOFACTOR        Two-factor authentication code
-    -n, --netrc                      Use .netrc authentication data
-    --video-password PASSWORD        Video password (vimeo, youku)
+    -u, --username USERNAME              Login with this account ID
+    -p, --password PASSWORD              Account password. If this option is
+                                         left out, youtube-dl will ask
+                                         interactively.
+    -2, --twofactor TWOFACTOR            Two-factor authentication code
+    -n, --netrc                          Use .netrc authentication data
+    --video-password PASSWORD            Video password (vimeo, youku)
 
 ## Adobe Pass Options:
-    --ap-mso MSO                     Adobe Pass multiple-system operator (TV
-                                     provider) identifier, use --ap-list-mso for
-                                     a list of available MSOs
-    --ap-username USERNAME           Multiple-system operator account login
-    --ap-password PASSWORD           Multiple-system operator account password.
-                                     If this option is left out, youtube-dl will
-                                     ask interactively.
-    --ap-list-mso                    List all supported multiple-system
-                                     operators
+    --ap-mso MSO                         Adobe Pass multiple-system operator (TV
+                                         provider) identifier, use --ap-list-mso
+                                         for a list of available MSOs
+    --ap-username USERNAME               Multiple-system operator account login
+    --ap-password PASSWORD               Multiple-system operator account
+                                         password. If this option is left out,
+                                         youtube-dl will ask interactively.
+    --ap-list-mso                        List all supported multiple-system
+                                         operators
 
 ## Post-processing Options:
-    -x, --extract-audio              Convert video files to audio-only files
-                                     (requires ffmpeg or avconv and ffprobe or
-                                     avprobe)
-    --audio-format FORMAT            Specify audio format: "best", "aac",
-                                     "flac", "mp3", "m4a", "opus", "vorbis", or
-                                     "wav"; "best" by default; No effect without
-                                     -x
-    --audio-quality QUALITY          Specify ffmpeg/avconv audio quality, 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|avi)
-    --postprocessor-args ARGS        Give these arguments to the postprocessor
-    -k, --keep-video                 Keep 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,
-                                     webm and mkv videos)
-    --embed-thumbnail                Embed thumbnail in the audio as cover art
-    --add-metadata                   Write metadata to the video file
-    --metadata-from-title FORMAT     Parse additional metadata like song title /
-                                     artist from the video title. The format
-                                     syntax is the same as --output. Regular
-                                     expression with named capture groups may
-                                     also be used. The parsed parameters replace
-                                     existing values. Example: --metadata-from-
-                                     title "%(artist)s - %(title)s" matches a
-                                     title like "Coldplay - Paradise". Example
-                                     (regex): --metadata-from-title
-                                     "(?P<artist>.+?) - (?P<title>.+)"
-    --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
-    --prefer-ffmpeg                  Prefer ffmpeg over avconv for running the
-                                     postprocessors (default)
-    --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 and post-processing, similar to
-                                     find's -exec syntax. Example: --exec 'adb
-                                     push {} /sdcard/Music/ && rm {}'
-    --convert-subs FORMAT            Convert the subtitles to other format
-                                     (currently supported: srt|ass|vtt|lrc)
+    -x, --extract-audio                  Convert video files to audio-only files
+                                         (requires ffmpeg/avconv and
+                                         ffprobe/avprobe)
+    --audio-format FORMAT                Specify audio format: "best", "aac",
+                                         "flac", "mp3", "m4a", "opus", "vorbis",
+                                         or "wav"; "best" by default; No effect
+                                         without -x
+    --audio-quality QUALITY              Specify ffmpeg/avconv audio quality,
+                                         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|avi)
+    --postprocessor-args ARGS            Give these arguments to the
+                                         postprocessor
+    -k, --keep-video                     Keep 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, webm and mkv videos)
+    --embed-thumbnail                    Embed thumbnail in the audio as cover
+                                         art
+    --add-metadata                       Write metadata to the video file
+    --metadata-from-title FORMAT         Parse additional metadata like song
+                                         title / artist from the video title.
+                                         The format syntax is the same as
+                                         --output. Regular expression with named
+                                         capture groups may also be used. The
+                                         parsed parameters replace existing
+                                         values. Example: --metadata-from-title
+                                         "%(artist)s - %(title)s" matches a
+                                         title like "Coldplay - Paradise".
+                                         Example (regex): --metadata-from-title
+                                         "(?P<artist>.+?) - (?P<title>.+)"
+    --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
+    --prefer-ffmpeg                      Prefer ffmpeg over avconv for running
+                                         the postprocessors (default)
+    --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 and post-processing,
+                                         similar to find's -exec syntax.
+                                         Example: --exec 'adb push {}
+                                         /sdcard/Music/ && rm {}'
+    --convert-subs FORMAT                Convert the subtitles to other format
+                                         (currently supported: srt|ass|vtt|lrc)
 
 # CONFIGURATION