X-Git-Url: https://git.rapsys.eu/youtubedl/blobdiff_plain/a070911bf98c751e4425008f1335cc57c86d30fc..38bb9b1b0a044cabaf5691553815e334cd2e9213:/README.txt?ds=inline diff --git a/README.txt b/README.txt index 5e2e5f7..e40f1d4 100644 --- a/README.txt +++ b/README.txt @@ -5,29 +5,32 @@ youtube-dl - download videos from youtube.com or other video platforms - OPTIONS - CONFIGURATION - OUTPUT TEMPLATE +- FORMAT SELECTION - VIDEO SELECTION - FAQ - DEVELOPER INSTRUCTIONS - BUGS - COPYRIGHT + + 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/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 Windows users can download a .exe file and place it in their home directory or any other location on their PATH. -OS X users can install youtube-dl with Homebrew. +OS X users can install YOUTUBE-DL with Homebrew. brew install youtube-dl @@ -40,10 +43,12 @@ 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 3.2+, 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 @@ -52,334 +57,225 @@ 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 - sure that you have sufficient permissions - (run with sudo if needed) - -i, --ignore-errors continue on download errors, for example to - skip unavailable videos in a playlist - --abort-on-error Abort downloading of further videos (in the - playlist or the command line) if an error - occurs - --dump-user-agent display the current browser identification - --list-extractors List all supported extractors and the URLs - they would handle - --extractor-descriptions Output descriptions of all supported - extractors - --default-search PREFIX Use this prefix for unqualified URLs. For - example "gvsearch2:" downloads two videos - from google videos for youtube-dl "large - apple". Use the value "auto" to let - youtube-dl guess ("auto_warning" to emit a - warning when guessing). "error" just throws - an error. The default value "fixup_error" - repairs broken URLs, but emits an error if - this is not possible instead of searching. - --ignore-config Do not read configuration files. When given - in the global configuration file /etc - /youtube-dl.conf: Do not read the user - configuration in ~/.config/youtube- - dl/config (%APPDATA%/youtube-dl/config.txt - on Windows) - --flat-playlist Do not extract the videos of a playlist, - only list them. + + + -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) + --flat-playlist Do not extract the videos of a playlist, only list them. + --no-color Do not emit color codes in output + Network Options: ----------------- - --proxy URL Use the specified HTTP/HTTPS proxy. Pass in - an empty string (--proxy "") for direct - connection + --proxy URL Use the specified HTTP/HTTPS proxy. Pass in an empty string (--proxy "") for direct connection --socket-timeout SECONDS Time to wait before giving up, in seconds - --source-address IP Client-side IP address to bind to - (experimental) - -4, --force-ipv4 Make all connections via IPv4 - (experimental) - -6, --force-ipv6 Make all connections via IPv6 - (experimental) + --source-address IP Client-side IP address to bind to (experimental) + -4, --force-ipv4 Make all connections via IPv4 (experimental) + -6, --force-ipv6 Make all connections via IPv6 (experimental) + --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 - caseless sub-string) - --reject-title REGEX skip download for matching titles (regex or - caseless sub-string) + + --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 - --no-playlist If the URL refers to a video and a - playlist, download only the video. - --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) + --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 (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 + (requires ffmpeg or - avconv), for example -f - bestvideo+bestaudio. - --all-formats download all available video formats - --prefer-free-formats prefer free video formats unless a specific - one is requested - --max-quality FORMAT highest quality format to download - -F, --list-formats list all available formats - --youtube-skip-dash-manifest Do not download the DASH manifest on - YouTube videos - --merge-output-format FORMAT If a merge is required (e.g. - bestvideo+bestaudio), output to given - container format. One of mkv, mp4, ogg, - webm, flv.Ignored if no merge is required + + -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 + --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 automatic subtitle file (youtube - only) - --all-subs downloads all the available subtitles of - the video - --list-subs lists all available subtitles for the video - --sub-format FORMAT subtitle format (default=srt) ([sbv/vtt] - youtube only) - --sub-lang LANGS languages of the subtitles to download - (optional) separated by commas, use IETF - language tags like 'en,pt' + + --write-sub Write subtitle file + --write-auto-sub Write automatic 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 IETF language tags like 'en,pt' + Authentication Options: ------------------------ - -u, --username USERNAME login with this account ID - -p, --password PASSWORD account password - -2, --twofactor TWOFACTOR two-factor auth code - -n, --netrc use .netrc authentication data - --video-password PASSWORD video password (vimeo, smotri) + -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 auth code + -n, --netrc Use .netrc authentication data + --video-password PASSWORD Video password (vimeo, smotri) + Post-processing Options: ------------------------- - - -x, --extract-audio convert video files to audio-only files - (requires ffmpeg or avconv and ffprobe or - avprobe) - --audio-format FORMAT "best", "aac", "vorbis", "mp3", "m4a", - "opus", or "wav"; "best" by default - --audio-quality QUALITY ffmpeg/avconv audio quality specification, - insert a value between 0 (better) and 9 - (worse) for VBR or a specific bitrate like - 128K (default 5) - --recode-video FORMAT Encode the video to another format if - necessary (currently supported: - mp4|flv|ogg|webm|mkv) - -k, --keep-video keeps the video file on disk after the - post-processing; the video is erased by - default - --no-post-overwrites do not overwrite post-processed files; the - post-processed files are overwritten by - default - --embed-subs embed subtitles in the video (only for mp4 - videos) - --embed-thumbnail embed thumbnail in the audio as cover art - --add-metadata write metadata to the video file - --xattrs write metadata to the video file's xattrs - (using dublin core and xdg standards) - --fixup POLICY (experimental) Automatically correct known - faults of the file. One of never (do - nothing), warn (only emit a warning), - detect_or_warn(check whether we can do - anything about it, warn otherwise - --prefer-avconv Prefer avconv over ffmpeg for running the - postprocessors (default) - --prefer-ffmpeg Prefer ffmpeg over avconv for running the - postprocessors - --exec CMD Execute a command on the file after - downloading, similar to find's -exec - syntax. Example: --exec 'adb push {} - /sdcard/Music/ && rm {}' + + -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", "vorbis", "mp3", "m4a", "opus", or "wav"; "best" by default + --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 mkv and mp4 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, the parsed + parameters replace existing values. Additional templates: %(album)s, %(artist)s. Example: --metadata-from-title "%(artist)s - + %(title)s" matches a title like "Coldplay - Paradise" + --xattrs Write metadata to the video file's xattrs (using dublin core and xdg standards) + --fixup POLICY Automatically correct known faults of the file. One of never (do nothing), warn (only emit a warning), detect_or_warn (the default; + fix file if we can, warn otherwise) + --prefer-avconv Prefer avconv over ffmpeg for running the postprocessors (default) + --prefer-ffmpeg Prefer ffmpeg over avconv for running the postprocessors + --ffmpeg-location PATH Location of the ffmpeg/avconv binary; either the path to the binary or its containing directory. + --exec CMD Execute a command on the file after downloading, similar to find's -exec syntax. Example: --exec 'adb push {} /sdcard/Music/ && rm + {}' + --convert-subtitles FORMAT Convert the subtitles to other format (currently supported: srt|ass|vtt) + + CONFIGURATION -============= + You can configure youtube-dl by placing default arguments (such as --extract-audio --no-mtime to always extract the audio and not copy the @@ -388,8 +284,40 @@ Windows, the configuration file locations are %APPDATA%\youtube-dl\config.txt and C:\Users\\youtube-dl.conf. +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 shell command history. You can achieve +this using .netrc file on per extractor basis. For that you will need to +create .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 .netrc file you should pass --netrc to +youtube-dl or to place it in configuration file. + +On Windows you may also need to setup %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 @@ -432,8 +360,63 @@ $ youtube-dl --get-filename -o "%(title)s.%(ext)s" BaW_jenozKc --restrict-filena 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 other 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. + +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 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 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: @@ -455,8 +438,10 @@ $ # will only download the videos uploaded in the 200x decade $ youtube-dl --dateafter 20000101 --datebefore 20091231 ``` + + FAQ -=== + How do I update youtube-dl? @@ -466,8 +451,8 @@ 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 +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, @@ -502,15 +487,13 @@ 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 in --max-quality FORMAT, or -citw? +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, --max-quality limits the video quality (so if you want the -best quality, do NOT pass it in), and the only option out of -citw that -is regularly useful is -i. +particular, the only option out of -citw that is regularly useful is -i. Can you please put the -b option back? @@ -549,7 +532,7 @@ 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 +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. @@ -561,15 +544,52 @@ 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 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 @@ -589,7 +609,7 @@ 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. @@ -609,16 +629,77 @@ 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" + +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/v/1234567 to http://example.com/v/1234567 ) and +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. +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 @@ -633,8 +714,10 @@ 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. @@ -714,7 +797,7 @@ list (assuming your service is called yourextractor): 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 + 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 be then be named TestDownload.test_YourExtractor, @@ -723,8 +806,7 @@ list (assuming your service is called yourextractor): 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). +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: @@ -737,8 +819,10 @@ 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 @@ -748,6 +832,7 @@ 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 = {} @@ -764,6 +849,7 @@ Here's a more complete example of a program that outputs only errors downloads/converts the video to an mp3 file: ``` {.python} +from __future__ import unicode_literals import youtube_dl @@ -797,8 +883,10 @@ 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 @@ -806,7 +894,7 @@ or there is another pertinent reason (e.g. GitHub fails to accept the 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 YOUTUBE-DL WHEN RUN WITH -v. The output (including the first lines) contain important debugging information. Issues without the full output are often not reproducible @@ -837,16 +925,24 @@ 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? @@ -870,7 +966,7 @@ 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? @@ -912,10 +1008,10 @@ 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? @@ -927,12 +1023,13 @@ 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. -