## Video Selection:
--playlist-start NUMBER playlist video to start at (default is 1)
--playlist-end NUMBER playlist video to end at (default is last)
+ --playlist-items ITEM_SPEC playlist video items to download. Specify
+ indices of the videos in the playlist
+ seperated by commas like: "--playlist-items
+ 1,2,5,8" if you want to download videos
+ indexed 1, 2, 5, 8 in the playlist. You can
+ specify range: "--playlist-items
+ 1-3,7,10-13", it will download the videos
+ at index 1, 2, 3, 7, 10, 11, 12 and 13.
--match-title REGEX download only matching titles (regex or
caseless sub-string)
--reject-title REGEX skip download for matching titles (regex or
## Download Options:
-r, --rate-limit LIMIT maximum download rate in bytes per second
(e.g. 50K or 4.2M)
- -R, --retries RETRIES number of retries (default is 10)
+ -R, --retries RETRIES number of retries (default is 10), or
+ "infinite".
--buffer-size SIZE size of download buffer (e.g. 1024 or 16K)
(default is 1024)
--no-resize-buffer do not automatically adjust the buffer
automatically resized from an initial value
of SIZE.
--playlist-reverse Download playlist videos in reverse order
+ --xattr-set-filesize (experimental) set file xattribute
+ ytdl.filesize with expected filesize
+ --external-downloader COMMAND (experimental) Use the specified external
+ downloader. Currently supports
+ aria2c,curl,wget
## Filesystem Options:
-a, --batch-file FILE file containing URLs to download ('-' for
--write-info-json write video metadata to a .info.json file
--write-annotations write video annotations to a .annotation
file
- --write-thumbnail write thumbnail image to disk
--load-info FILE json file containing the video information
(created with the "--write-json" option)
--cookies FILE file to read cookies from and dump cookie
--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
+
## Verbosity / Simulation Options:
-q, --quiet activates quiet mode
--no-warnings Ignore warnings
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, and vbr
- and the comparisons <, <=, >, >=, =, != .
- Formats for which the value is not known
+ filesize, height, width, tbr, abr, vbr, and
+ fps 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 <=?
Use the `-o` to specify an [output template](#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](#configuration).
+### 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 can I detect whether a given URL is supported by youtube-dl?
-For one, have a look at the [list of supported sites](docs/supportedsites). 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 youtube-dl reports an URL of a service in that list as unsupported. In that case, simply report a bug.
+For one, have a look at the [list of supported sites](docs/supportedsites.md). 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 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.
5. Add an import in [`youtube_dl/extractor/__init__.py`](https://github.com/rg3/youtube-dl/blob/master/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. 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`, `TestDownload.test_YourExtractor_1`, `TestDownload.test_YourExtractor_2`, etc.
7. Have a look at [`youtube_dl/common/extractor/common.py`](https://github.com/rg3/youtube-dl/blob/master/youtube_dl/extractor/common.py) for possible helper methods and a [detailed description of what your extractor should return](https://github.com/rg3/youtube-dl/blob/master/youtube_dl/extractor/common.py#L38). Add tests and code for as many as you want.
-8. If you can, check the code with [pyflakes](https://pypi.python.org/pypi/pyflakes) (a good idea) and [pep8](https://pypi.python.org/pypi/pep8) (optional, ignore E501).
+8. If you can, check the code with [flake8](https://pypi.python.org/pypi/flake8).
9. When the tests pass, [add](http://git-scm.com/docs/git-add) the new files and [commit](http://git-scm.com/docs/git-commit) them and [push](http://git-scm.com/docs/git-push) the result, like this:
$ git add youtube_dl/extractor/__init__.py
projects / youtube-dl / blobdiff