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Li 84f2ec35cc Fix some bugz 2023-03-21 23:12:28 +13:00
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README.md

Goals and feature

Libdvdcss is a portable abstraction library for DVD decryption.

It is part of the VideoLAN project, which among other things produces VLC, a full video client/server streaming solution.

VLC can also be used as a standalone program to play video streams from a hard disk or a DVD.

Libdvdcss currently supported platforms are GNU/Linux, FreeBSD, NetBSD, OpenBSD, Haiku, Mac OS X, Solaris, QNX, OS/2, and Windows NT 4.0 SP4 (with IE 5.0) or later.

Building and installing instructions for Libdvdcss

See the INSTALL file for full instructions.

Running libdvdcss

The behavior of the library can be changed by setting two environment variables :

DVDCSS_METHOD={title|disc|key}: method for key decryption :

  • title : By default the decrypted title key is guessed from the encrypted sectors of the stream. Thus it should work with a file as well as the DVD device. But decrypting a title key may take too much time or even fail. With the title method, the key is only checked at the beginning of each title, so it will not work if the key changes in the middle of a title.

  • disc : The disc key is cracked first. Afterwards all title keys can be decrypted instantly, which allows checking them often.

  • key : The same as the "disc" method if you do not have a file with player keys at compile time. If you do, disc key decryption will be faster. This is the default method also employed by libcss.

DVDCSS_VERBOSE={0|1|2}: libdvdcss verbosity

  • 0: no error messages, no debug messages (this is the default)
  • 1: only error messages
  • 2: error and debug messages

Troubleshooting

A mailing-list has been set up for support and discussion about libdvdcss. Its address is:

libdvdcss-devel@videolan.org

To subscribe or unsubscribe, go here.

When reporting bugs, try to be as precise as possible (which OS, which distribution, what plugins you were trying, and so on).

CoC

The VideoLAN Code of Conduct applies to this project.

Licence

Libdvdcss is released under the General Public License, ensuring it will stay free, and used only for free software products.

Resources

The VideoLAN web site is a good start for information about MPEG and DVD playback.

Have a look at the support section to look for answers.

You can also have a look to the documentation.