ref: f000838a0ef52a1bbcc272ece4264976e1a17bc0
dir: /README/
README for libdvdcss, a portable abstraction library for DVD decryption
Introduction
============
libdvdcss 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.
Building and Installing libdvdcss
=================================
See the INSTALL file.
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: 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 it sometimes takes too much time to decrypt a title
key and may even fail. With this method, the key is only checked
at the beginning of each title, so it won't work if the key
changes in the middle of a title.
disc: the disc key is first cracked ; then all title keys can be
decrypted instantly, which allows us to check them often,
key: the same as "disc" if you don't have a file with player keys at
compilation time. If you do, the decryption of the disc key will
be faster with this method. It is the one that was used by libcss.
This is the default method.
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 to:
http://mailman.videolan.org/
When reporting bugs, try to be as precise as possible (which OS, which
distribution, what plugins you were trying, and so on).
Resources
=========
The VideoLAN web site at http://www.videolan.org/ is a good start for
information about MPEG and DVD playback. Have a look at the support
section to look for answers.