X-Git-Url: https://git.rapsys.eu/youtubedl/blobdiff_plain/d58070b17fd9302b32eb12ae4b271bffaf67abb4..3477c644417600d9ec8f8d2a44f82da0a4b15eb5:/README.txt?ds=sidebyside diff --git a/README.txt b/README.txt index 0f9c470..fc369d2 100644 --- a/README.txt +++ b/README.txt @@ -1,153 +1,212 @@ youtube-dl - download videos from youtube.com or other video platforms -SYNOPSIS -======== +- INSTALLATION +- DESCRIPTION +- OPTIONS +- CONFIGURATION +- OUTPUT TEMPLATE +- FORMAT SELECTION +- VIDEO SELECTION +- FAQ +- DEVELOPER INSTRUCTIONS +- EMBEDDING YOUTUBE-DL +- BUGS +- COPYRIGHT + -youtube-dl OPTIONS URL [URL...] INSTALLATION -============ + To install it right away for all UNIX users (Linux, OS X, etc.), type: sudo curl https://yt-dl.org/latest/youtube-dl -o /usr/local/bin/youtube-dl - sudo chmod a+x /usr/local/bin/youtube-dl + sudo chmod a+rx /usr/local/bin/youtube-dl If you do not have curl, you can alternatively use a recent wget: - sudo wget https://yt-dl.org/downloads/2014.05.13/youtube-dl -O /usr/local/bin/youtube-dl - sudo chmod a+x /usr/local/bin/youtube-dl + sudo wget https://yt-dl.org/downloads/latest/youtube-dl -O /usr/local/bin/youtube-dl + sudo chmod a+rx /usr/local/bin/youtube-dl Windows users can download a .exe file and place it in their home directory or any other location on their PATH. -Alternatively, refer to the developer instructions below for how to -check out and work with the git repository. For further options, -including PGP signatures, see -https://rg3.github.io/youtube-dl/download.html . +OS X users can install YOUTUBE-DL with Homebrew. + + brew install youtube-dl + +You can also use pip: + + sudo pip install youtube-dl + +Alternatively, refer to the developer instructions for how to check out +and work with the git repository. For further options, including PGP +signatures, see https://rg3.github.io/youtube-dl/download.html . + + DESCRIPTION -=========== -youtube-dl is a small command-line program to download videos from + +YOUTUBE-DL is a small command-line program to download videos from YouTube.com and a few more sites. It requires the Python interpreter, -version 2.6, 2.7, or 3.3+, and it is not platform specific. It should +version 2.6, 2.7, or 3.2+, and it is not platform specific. It should work on your Unix box, on Windows or on Mac OS X. It is released to the public domain, which means you can modify it, redistribute it or use it however you like. + 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 + + -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 + -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 - --user-agent UA specify a custom user agent - --referer REF 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 - --list-extractors List all supported extractors and the URLs - they would handle + --dump-user-agent Display the current browser identification + --list-extractors List all supported extractors --extractor-descriptions Output descriptions of all supported extractors - --proxy URL Use the specified HTTP/HTTPS proxy. Pass in - an empty string (--proxy "") for direct - connection - --no-check-certificate Suppress HTTPS certificate validation. - --prefer-insecure Use an unencrypted connection to retrieve - information about the video. (Currently - supported only for YouTube) - --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 - --socket-timeout None Time to wait before giving up, in seconds - --bidi-workaround Work around terminals that lack - bidirectional text support. Requires bidiv - or fribidi executable in PATH + --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 + from google videos for youtube-dl "large apple". Use the value "auto" to let - youtube-dl guess. The default value "error" - just throws an error. + 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.conf - (%APPDATA%/youtube-dl/config.txt on - Windows) - --encoding ENCODING Force the specified encoding (experimental) + /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 + --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) + --cn-verification-proxy URL Use this proxy to verify the IP address for + some Chinese sites. The default proxy + specified by --proxy (or none, if the + options is not present) is used for the + actual downloading. (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) - --match-title REGEX download only matching titles (regex or + --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 + --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 + --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 + --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 - --no-playlist download only the currently playing video - --age-limit YEARS download only videos suitable for the given + --match-filter FILTER Generic video filter (experimental). + 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 \youtube-dl.conf. + +You can configure youtube-dl by placing any supported command line +option to a configuration file. On Linux, the system wide configuration +file is located at /etc/youtube-dl.conf and the user wide configuration +file at ~/.config/youtube-dl/config. On Windows, the user wide +configuration file locations are %APPDATA%\youtube-dl\config.txt or +C:\Users\\youtube-dl.conf. For example, with the following +configuration file youtube-dl will always extract the audio, not copy +the mtime and use a proxy: + + --extract-audio + --no-mtime + --proxy 127.0.0.1:3128 + +You can use --ignore-config if you want to disable the configuration +file for a particular youtube-dl run. + +Authentication with .netrc file + +You may also want to configure automatic credentials storage for +extractors that support authentication (by providing login and password +with --username and --password) in order not to pass credentials as +command line arguments on every youtube-dl execution and prevent +tracking plain text passwords in the shell command history. You can +achieve this using a .netrc file on per extractor basis. For that you +will need to create a.netrc file in your $HOME and restrict permissions +to read/write by you only: + + touch $HOME/.netrc + chmod a-rwx,u+rw $HOME/.netrc + +After that you can add credentials for extractor in the following +format, where _extractor_ is the name of extractor in lowercase: + + machine login password + +For example: + + machine youtube login myaccount@gmail.com password my_youtube_password + machine twitch login my_twitch_account_name password my_twitch_password + +To activate authentication with the .netrc file you should pass --netrc +to youtube-dl or place it in the configuration file. + +On Windows you may also need to setup the %HOME% environment variable +manually. + + OUTPUT TEMPLATE -=============== + The -o option allows users to indicate a template for the output file names. The basic usage is not to set any template arguments when @@ -319,7 +501,7 @@ downloading a single file, like in youtube-dl -o funny_video.flv "http://some/video". However, it may contain special sequences that will be replaced when downloading each video. The special sequences have the format %(NAME)s. To clarify, that -is a percent symbol followed by a name in parenthesis, followed by a +is a percent symbol followed by a name in parentheses, followed by a lowercase S. Allowed names are: - id: The sequence will be replaced by the video identifier. @@ -335,10 +517,15 @@ lowercase S. Allowed names are: the file. - autonumber: The sequence will be replaced by a five-digit number that will be increased with each download, starting at zero. -- playlist: The name or the id of the playlist that contains the - video. -- playlist_index: The index of the video in the playlist, a five-digit - number. +- playlist: The sequence will be replaced by the name or the id of the + playlist that contains the video. +- playlist_index: The sequence will be replaced by the index of the + video in the playlist padded with leading zeros according to the + total length of the playlist. +- format_id: The sequence will be replaced by the format code + specified by --format. +- duration: The sequence will be replaced by the length of the video + in seconds. The current default template is %(title)s-%(id)s.%(ext)s. @@ -347,16 +534,76 @@ In some cases, you don't want special characters such as 中, spaces, or or the filename through an 8bit-unsafe channel. In these cases, add the --restrict-filenames flag to get a shorter title: - $ youtube-dl --get-filename -o "%(title)s.%(ext)s" BaW_jenozKc - youtube-dl test video ''_ä↭𝕐.mp4 # All kinds of weird characters - $ youtube-dl --get-filename -o "%(title)s.%(ext)s" BaW_jenozKc --restrict-filenames - youtube-dl_test_video_.mp4 # A simple file name +``` {.bash} +$ youtube-dl --get-filename -o "%(title)s.%(ext)s" BaW_jenozKc +youtube-dl test video ''_ä↭𝕐.mp4 # All kinds of weird characters +$ youtube-dl --get-filename -o "%(title)s.%(ext)s" BaW_jenozKc --restrict-filenames +youtube-dl_test_video_.mp4 # A simple file name +``` + + + +FORMAT SELECTION + + +By default youtube-dl tries to download the best quality, but sometimes +you may want to download in a different format. The simplest case is +requesting a specific format, for example -f 22. You can get the list of +available formats using --list-formats, you can also use a file +extension (currently it supports aac, m4a, mp3, mp4, ogg, wav, webm) or +the special names best, bestvideo, bestaudio and worst. + +If you want to download multiple videos and they don't have the same +formats available, you can specify the order of preference using +slashes, as in -f 22/17/18. You can also 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. +Use commas to download multiple 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 + (requires ffmpeg or avconv), for +example -f bestvideo+bestaudio. Format selectors can also be grouped +using parentheses, for example if you want to download the best mp4 and +webm formats with a height lower than 480 you can use +-f '(mp4,webm)[height<480]'. + +Since the end of April 2015 and version 2015.04.26 youtube-dl uses +-f bestvideo+bestaudio/best as default format selection (see #5447, +#5456). If ffmpeg or avconv are installed this results in downloading +bestvideo and bestaudio separately and muxing them together into a +single file giving the best overall quality available. Otherwise it +falls back to best and results in downloading the best available quality +served as a single file. best is also needed for videos that don't come +from YouTube because they don't provide the audio and video in two +different files. If you want to only download some dash formats (for +example if you are not interested in getting videos with a resolution +higher than 1080p), you can add +-f bestvideo[height<=?1080]+bestaudio/best to your configuration file. +Note that if you use youtube-dl to stream to stdout (and most likely to +pipe it to your media player then), i.e. you explicitly specify output +template as -o -, youtube-dl still uses -f best format selection in +order to start content delivery immediately to your player and not to +wait until bestvideo and bestaudio are downloaded and muxed. + +If you want to preserve the old format selection behavior (prior to +youtube-dl 2015.04.26), i.e. you want to download the best available +quality media served as a single file, you should explicitly specify +your choice with -f best. You may want to add it to the configuration +file in order not to type it every time you run youtube-dl. + + VIDEO SELECTION -=============== + Videos can be filtered by their upload date using the options --date, ---datebefore or --dateafter, they accept dates in two formats: +--datebefore or --dateafter. They accept dates in two formats: - Absolute dates: Dates in the format YYYYMMDD. - Relative dates: Dates in the format @@ -364,17 +611,73 @@ Videos can be filtered by their upload date using the options --date, Examples: - # Download only the videos uploaded in the last 6 months - $ youtube-dl --dateafter now-6months +``` {.bash} +# Download only the videos uploaded in the last 6 months +$ youtube-dl --dateafter now-6months + +# Download only the videos uploaded on January 1, 1970 +$ youtube-dl --date 19700101 + +$ # Download only the videos uploaded in the 200x decade +$ youtube-dl --dateafter 20000101 --datebefore 20091231 +``` - # Download only the videos uploaded on January 1, 1970 - $ youtube-dl --date 19700101 - $ # will only download the videos uploaded in the 200x decade - $ youtube-dl --dateafter 20000101 --datebefore 20091231 FAQ -=== + + +How do I update youtube-dl? + +If you've followed our manual installation instructions, you can simply +run youtube-dl -U (or, on Linux, sudo youtube-dl -U). + +If you have used pip, a simple sudo pip install -U youtube-dl is +sufficient to update. + +If you have installed youtube-dl using a package manager like _apt-get_ +or _yum_, use the standard system update mechanism to update. Note that +distribution packages are often outdated. As a rule of thumb, youtube-dl +releases at least once a month, and often weekly or even daily. Simply +go to http://yt-dl.org/ to find out the current version. Unfortunately, +there is nothing we youtube-dl developers can do if your distribution +serves a really outdated version. You can (and should) complain to your +distribution in their bugtracker or support forum. + +As a last resort, you can also uninstall the version installed by your +package manager and follow our manual installation instructions. For +that, remove the distribution's package, with a line like + + sudo apt-get remove -y youtube-dl + +Afterwards, simply follow our manual installation instructions: + + sudo wget https://yt-dl.org/latest/youtube-dl -O /usr/local/bin/youtube-dl + sudo chmod a+x /usr/local/bin/youtube-dl + hash -r + +Again, from then on you'll be able to update with sudo youtube-dl -U. + +I'm getting an error Unable to extract OpenGraph title on YouTube playlists + +YouTube changed their playlist format in March 2014 and later on, so +you'll need at least youtube-dl 2014.07.25 to download all YouTube +videos. + +If you have installed youtube-dl with a package manager, pip, setup.py +or a tarball, please use that to update. Note that Ubuntu packages do +not seem to get updated anymore. Since we are not affiliated with +Ubuntu, there is little we can do. Feel free to report bugs to the +Ubuntu packaging guys - all they have to do is update the package to a +somewhat recent version. See above for a way to update. + +Do I always have to pass -citw? + +By default, youtube-dl intends to have the best options (incidentally, +if you have a convincing case that these should be different, please +file an issue where you explain that). Therefore, it is unnecessary and +sometimes harmful to copy long option strings from webpages. In +particular, the only option out of -citw that is regularly useful is -i. Can you please put the -b option back? @@ -399,25 +702,78 @@ I have downloaded a video but how can I play it? Once the video is fully downloaded, use any video player, such as vlc or mplayer. -The links provided by youtube-dl -g are not working anymore +I extracted a video URL with -g, but it does not play on another machine / in my webbrowser. -The URLs youtube-dl outputs require the downloader to have the correct -cookies. Use the --cookies option to write the required cookies into a -file, and advise your downloader to read cookies from that file. Some -sites also require a common user agent to be used, use --dump-user-agent -to see the one in use by youtube-dl. +It depends a lot on the service. In many cases, requests for the video +(to download/play it) must come from the same IP address and with the +same cookies. Use the --cookies option to write the required cookies +into a file, and advise your downloader to read cookies from that file. +Some sites also require a common user agent to be used, use +--dump-user-agent to see the one in use by youtube-dl. + +It may be beneficial to use IPv6; in some cases, the restrictions are +only applied to IPv4. Some services (sometimes only for a subset of +videos) do not restrict the video URL by IP address, cookie, or +user-agent, but these are the exception rather than the rule. + +Please bear in mind that some URL protocols are NOT supported by +browsers out of the box, including RTMP. If you are using -g, your own +downloader must support these as well. + +If you want to play the video on a machine that is not running +youtube-dl, you can relay the video content from the machine that runs +youtube-dl. You can use -o - to let youtube-dl stream a video to stdout, +or simply allow the player to download the files written by youtube-dl +in turn. ERROR: no fmt_url_map or conn information found in video info -youtube has switched to a new video info format in July 2011 which is -not supported by old versions of youtube-dl. You can update youtube-dl -with sudo youtube-dl --update. +YouTube has switched to a new video info format in July 2011 which is +not supported by old versions of youtube-dl. See above for how to update +youtube-dl. ERROR: unable to download video -youtube requires an additional signature since September 2012 which is -not supported by old versions of youtube-dl. You can update youtube-dl -with sudo youtube-dl --update. +YouTube requires an additional signature since September 2012 which is +not supported by old versions of youtube-dl. See above for how to update +youtube-dl. + +Video URL contains an ampersand and I'm getting some strange output [1] 2839 or 'v' is not recognized as an internal or external command + +That's actually the output from your shell. Since ampersand is one of +the special shell characters it's interpreted by the shell preventing +you from passing the whole URL to youtube-dl. To disable your shell from +interpreting the ampersands (or any other special characters) you have +to either put the whole URL in quotes or escape them with a backslash +(which approach will work depends on your shell). + +For example if your URL is +https://www.youtube.com/watch?t=4&v=BaW_jenozKc you should end up with +following command: + +youtube-dl 'https://www.youtube.com/watch?t=4&v=BaW_jenozKc' + +or + +youtube-dl https://www.youtube.com/watch?t=4\&v=BaW_jenozKc + +For Windows you have to use the double quotes: + +youtube-dl "https://www.youtube.com/watch?t=4&v=BaW_jenozKc" + +ExtractorError: Could not find JS function u'OF' + +In February 2015, the new YouTube player contained a character sequence +in a string that was misinterpreted by old versions of youtube-dl. See +above for how to update youtube-dl. + +HTTP Error 429: Too Many Requests or 402: Payment Required + +These two error codes indicate that the service is blocking your IP +address because of overuse. Contact the service and ask them to unblock +your IP address, or - if you have acquired a whitelisted IP address +already - use the --proxy or --source-address options to select another +IP address. SyntaxError: Non-ASCII character @@ -437,13 +793,129 @@ systems) or clone the git repository, as laid out above. If you modify the code, you can run it by executing the __main__.py file. To recompile the executable, run make youtube-dl. -The exe throws a Runtime error from Visual C++ +The exe throws a _Runtime error from Visual C++_ To run the exe you need to install first the Microsoft Visual C++ 2008 Redistributable Package. +On Windows, how should I set up ffmpeg and youtube-dl? Where should I put the exe files? + +If you put youtube-dl and ffmpeg in the same directory that you're +running the command from, it will work, but that's rather cumbersome. + +To make a different directory work - either for ffmpeg, or for +youtube-dl, or for both - simply create the directory (say, C:\bin, or +C:\Users\\bin), put all the executables directly in there, +and then set your PATH environment variable to include that directory. + +From then on, after restarting your shell, you will be able to access +both youtube-dl and ffmpeg (and youtube-dl will be able to find ffmpeg) +by simply typing youtube-dl or ffmpeg, no matter what directory you're +in. + +How do I put downloads into a specific folder? + +Use the -o to specify an output template, for example +-o "/home/user/videos/%(title)s-%(id)s.%(ext)s". If you want this for +all of your downloads, put the option into your configuration file. + +How do I download a video starting with a - ? + +Either prepend http://www.youtube.com/watch?v= or separate the ID from +the options with --: + + youtube-dl -- -wNyEUrxzFU + youtube-dl "http://www.youtube.com/watch?v=-wNyEUrxzFU" + +How do I pass cookies to youtube-dl? + +Use the --cookies option, for example +--cookies /path/to/cookies/file.txt. Note that the cookies file must be +in Mozilla/Netscape format and the first line of the cookies file must +be either # HTTP Cookie File or # Netscape HTTP Cookie File. Make sure +you have correct newline format in the cookies file and convert newlines +if necessary to correspond with your OS, namely CRLF (\r\n) for Windows, +LF (\n) for Linux and CR (\r) for Mac OS. HTTP Error 400: Bad Request +when using --cookies is a good sign of invalid newline format. + +Passing cookies to youtube-dl is a good way to workaround login when a +particular extractor does not implement it explicitly. + +Can you add support for this anime video site, or site which shows current movies for free? + +As a matter of policy (as well as legality), youtube-dl does not include +support for services that specialize in infringing copyright. As a rule +of thumb, if you cannot easily find a video that the service is quite +obviously allowed to distribute (i.e. that has been uploaded by the +creator, the creator's distributor, or is published under a free +license), the service is probably unfit for inclusion to youtube-dl. + +A note on the service that they don't host the infringing content, but +just link to those who do, is evidence that the service should NOT be +included into youtube-dl. The same goes for any DMCA note when the whole +front page of the service is filled with videos they are not allowed to +distribute. A "fair use" note is equally unconvincing if the service +shows copyright-protected videos in full without authorization. + +Support requests for services that DO purchase the rights to distribute +their content are perfectly fine though. If in doubt, you can simply +include a source that mentions the legitimate purchase of content. + +How can I speed up work on my issue? + +(Also known as: Help, my important issue not being solved!) The +youtube-dl core developer team is quite small. While we do our best to +solve as many issues as possible, sometimes that can take quite a while. +To speed up your issue, here's what you can do: + +First of all, please do report the issue at our issue tracker. That +allows us to coordinate all efforts by users and developers, and serves +as a unified point. Unfortunately, the youtube-dl project has grown too +large to use personal email as an effective communication channel. + +Please read the bug reporting instructions below. A lot of bugs lack all +the necessary information. If you can, offer proxy, VPN, or shell access +to the youtube-dl developers. If you are able to, test the issue from +multiple computers in multiple countries to exclude local censorship or +misconfiguration issues. + +If nobody is interested in solving your issue, you are welcome to take +matters into your own hands and submit a pull request (or coerce/pay +somebody else to do so). + +Feel free to bump the issue from time to time by writing a small comment +("Issue is still present in youtube-dl version ...from France, but fixed +from Belgium"), but please not more than once a month. Please do not +declare your issue as important or urgent. + +How can I detect whether a given URL is supported by youtube-dl? + +For one, have a look at the list of supported sites. Note that it can +sometimes happen that the site changes its URL scheme (say, from +http://example.com/video/1234567 to http://example.com/v/1234567 ) and +youtube-dl reports an URL of a service in that list as unsupported. In +that case, simply report a bug. + +It is _not_ possible to detect whether a URL is supported or not. That's +because youtube-dl contains a generic extractor which matches ALL URLs. +You may be tempted to disable, exclude, or remove the generic extractor, +but the generic extractor not only allows users to extract videos from +lots of websites that embed a video from another service, but may also +be used to extract video from a service that it's hosting itself. +Therefore, we neither recommend nor support disabling, excluding, or +removing the generic extractor. + +If you want to find out whether a given URL is supported, simply call +youtube-dl with it. If you get no videos back, chances are the URL is +either not referring to a video or unsupported. You can find out which +by examining the output (if you run youtube-dl on the console) or +catching an UnsupportedError exception if you run it from a Python +program. + + + DEVELOPER INSTRUCTIONS -====================== + Most users do not need to build youtube-dl and can download the builds or get them from their distribution. @@ -481,54 +953,59 @@ list (assuming your service is called yourextractor): 4. Start with this simple template and save it to youtube_dl/extractor/yourextractor.py: - # coding: utf-8 - from __future__ import unicode_literals - - import re - - from .common import InfoExtractor - - - class YourExtractorIE(InfoExtractor): - _VALID_URL = r'https?://(?:www\.)?yourextractor\.com/watch/(?P[0-9]+)' - _TEST = { - 'url': 'http://yourextractor.com/watch/42', - 'md5': 'TODO: md5 sum of the first 10KiB of the video file', - 'info_dict': { - 'id': '42', - 'ext': 'mp4', - 'title': 'Video title goes here', - # TODO more properties, either as: - # * A value - # * MD5 checksum; start the string with md5: - # * A regular expression; start the string with re: - # * Any Python type (for example int or float) - } + ``` {.python} + # coding: utf-8 + from __future__ import unicode_literals + + from .common import InfoExtractor + + + class YourExtractorIE(InfoExtractor): + _VALID_URL = r'https?://(?:www\.)?yourextractor\.com/watch/(?P[0-9]+)' + _TEST = { + 'url': 'http://yourextractor.com/watch/42', + 'md5': 'TODO: md5 sum of the first 10241 bytes of the video file (use --test)', + 'info_dict': { + 'id': '42', + 'ext': 'mp4', + 'title': 'Video title goes here', + 'thumbnail': 're:^https?://.*\.jpg$', + # TODO more properties, either as: + # * A value + # * MD5 checksum; start the string with md5: + # * A regular expression; start the string with re: + # * Any Python type (for example int or float) } + } - def _real_extract(self, url): - mobj = re.match(self._VALID_URL, url) - video_id = mobj.group('id') + def _real_extract(self, url): + video_id = self._match_id(url) + webpage = self._download_webpage(url, video_id) - # TODO more code goes here, for example ... - webpage = self._download_webpage(url, video_id) - title = self._html_search_regex(r'

(.*?)

', webpage, 'title') + # TODO more code goes here, for example ... + title = self._html_search_regex(r'

(.+?)

', webpage, 'title') - return { - 'id': video_id, - 'title': title, - # TODO more properties (see youtube_dl/extractor/common.py) - } + return { + 'id': video_id, + 'title': title, + 'description': self._og_search_description(webpage), + 'uploader': self._search_regex(r']+id="uploader"[^>]*>([^<]+)<', webpage, 'uploader', fatal=False), + # TODO more properties (see youtube_dl/extractor/common.py) + } + ``` 5. Add an import in youtube_dl/extractor/__init__.py. 6. Run python test/test_download.py TestDownload.test_YourExtractor. - This should fail at first, but you can continually re-run it until - you're done. -7. Have a look at youtube_dl/common/extractor/common.py for possible - helper methods and a detailed description of what your extractor - should return. Add tests and code for as many as you want. -8. If you can, check the code with pyflakes (a good idea) and pep8 - (optional, ignore E501). + This _should fail_ at first, but you can continually re-run it until + you're done. If you decide to add more than one test, then rename + _TEST to _TESTS and make it into a list of dictionaries. The tests + will then be named TestDownload.test_YourExtractor, + TestDownload.test_YourExtractor_1, + TestDownload.test_YourExtractor_2, etc. +7. Have a look at youtube_dl/extractor/common.py for possible helper + methods and a detailed description of what your extractor should and + may return. Add tests and code for as many as you want. +8. If you can, check the code with flake8. 9. When the tests pass, add the new files and commit them and push the result, like this: @@ -541,22 +1018,88 @@ list (assuming your service is called yourextractor): In any case, thank you very much for your contributions! + + +EMBEDDING YOUTUBE-DL + + +youtube-dl makes the best effort to be a good command-line program, and +thus should be callable from any programming language. If you encounter +any problems parsing its output, feel free to create a report. + +From a Python program, you can embed youtube-dl in a more powerful +fashion, like this: + +``` {.python} +from __future__ import unicode_literals +import youtube_dl + +ydl_opts = {} +with youtube_dl.YoutubeDL(ydl_opts) as ydl: + ydl.download(['http://www.youtube.com/watch?v=BaW_jenozKc']) +``` + +Most likely, you'll want to use various options. For a list of what can +be done, have a look at youtube_dl/YoutubeDL.py. For a start, if you +want to intercept youtube-dl's output, set a logger object. + +Here's a more complete example of a program that outputs only errors +(and a short message after the download is finished), and +downloads/converts the video to an mp3 file: + +``` {.python} +from __future__ import unicode_literals +import youtube_dl + + +class MyLogger(object): + def debug(self, msg): + pass + + def warning(self, msg): + pass + + def error(self, msg): + print(msg) + + +def my_hook(d): + if d['status'] == 'finished': + print('Done downloading, now converting ...') + + +ydl_opts = { + 'format': 'bestaudio/best', + 'postprocessors': [{ + 'key': 'FFmpegExtractAudio', + 'preferredcodec': 'mp3', + 'preferredquality': '192', + }], + 'logger': MyLogger(), + 'progress_hooks': [my_hook], +} +with youtube_dl.YoutubeDL(ydl_opts) as ydl: + ydl.download(['http://www.youtube.com/watch?v=BaW_jenozKc']) +``` + + + BUGS -==== + Bugs and suggestions should be reported at: https://github.com/rg3/youtube-dl/issues . Unless you were prompted so or there is another pertinent reason (e.g. GitHub fails to accept the -bug report), please do not send bug reports via personal email. +bug report), please do not send bug reports via personal email. For +discussions, join us in the irc channel #youtube-dl on freenode. + +PLEASE INCLUDE THE FULL OUTPUT OF YOUTUBE-DL WHEN RUN WITH -v. -Please include the full output of the command when run with --verbose. -The output (including the first lines) contain important debugging +The output (including the first lines) contains important debugging information. Issues without the full output are often not reproducible and therefore do not get solved in short order, if ever. -For discussions, join us in the irc channel #youtube-dl on freenode. - -When you submit a request, please re-read it once to avoid a couple of +Please re-read your issue once again to avoid a couple of common mistakes (you can and should use this as a checklist): Is the description of the issue itself sufficient? @@ -581,16 +1124,24 @@ misinterpretation likely. As a commiter myself, I often get frustrated by these issues, since the only possible way for me to move forward on them is to ask for clarification over and over. -For bug reports, this means that your report should contain the complete -output of youtube-dl when called with the -v flag. The error message you -get for (most) bugs even says so, but you would not believe how many of -our bug reports do not contain this information. +For bug reports, this means that your report should contain the +_complete_ output of youtube-dl when called with the -v flag. The error +message you get for (most) bugs even says so, but you would not believe +how many of our bug reports do not contain this information. + +If your server has multiple IPs or you suspect censorship, adding +--call-home may be a good idea to get more diagnostics. If the error is +ERROR: Unable to extract ... and you cannot reproduce it from multiple +countries, add --dump-pages (warning: this will yield a rather large +output, redirect it to the file log.txt by adding >log.txt 2>&1 to your +command-line) or upload the .dump files you get when you add +--write-pages somewhere. -Site support requests must contain an example URL. An example URL is a +SITE SUPPORT REQUESTS MUST CONTAIN AN EXAMPLE URL. An example URL is a URL you might want to download, like http://www.youtube.com/watch?v=BaW_jenozKc . There should be an obvious video present. Except under very special circumstances, the main page of -a video service (e.g. http://www.youtube.com/ ) is not an example URL. +a video service (e.g. http://www.youtube.com/ ) is _not_ an example URL. Are you using the latest version? @@ -614,7 +1165,7 @@ Why are existing options not enough? Before requesting a new feature, please have a quick peek at the list of supported options. Many feature requests are for features that actually exist already! Please, absolutely do show off your work in the issue -report and detail how the existing similar options do not solve your +report and detail how the existing similar options do _not_ solve your problem. Is there enough context in your bug report? @@ -656,10 +1207,10 @@ video service. Is anyone going to need the feature? -Only post features that you (or an incapicated friend you can personally -talk to) require. Do not post features because they seem like a good -idea. If they are really useful, they will be requested by someone who -requires them. +Only post features that you (or an incapacitated friend you can +personally talk to) require. Do not post features because they seem like +a good idea. If they are really useful, they will be requested by +someone who requires them. Is your question about youtube-dl? @@ -671,12 +1222,13 @@ maintainer of the actual application providing the UI. On the other hand, if your UI for youtube-dl fails in some way you believe is related to youtube-dl, by all means, go ahead and report the bug. + + COPYRIGHT -========= + youtube-dl is released into the public domain by the copyright holders. This README file was originally written by Daniel Bolton (https://github.com/dbbolton) and is likewise released into the public domain. -