62 lines
2.1 KiB
Text
62 lines
2.1 KiB
Text
README for libdvdcss, a portable abstraction library for DVD decryption
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Introduction
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============
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libdvdcss is part of the VideoLAN project, which among other things produces
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VLC, a full video client/server streaming solution. VLC can also be used as
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a standalone program to play video streams from a hard disk or a DVD.
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Building and Installing libdvdcss
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=================================
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See the INSTALL file.
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Running libdvdcss
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=================
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The behavior of the library can be changed by setting two environment variables:
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DVDCSS_METHOD={title|disc|key}: method for key decryption
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title: By default the decrypted title key is guessed from the encrypted
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sectors of the stream. Thus it should work with a file as well as
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the DVD device. But decrypting a title key may take too much time
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or even fail. With the title method, the key is only checked at
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the beginning of each title, so it will not work if the key
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changes in the middle of a title.
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disc: The disc key is cracked first. Afterwards all title keys can be
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decrypted instantly, which allows checking them often.
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key: The same as the "disc" method if you do not have a file with player
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keys at compile time. If you do, disc key decryption will be faster.
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This is the default method also employed by libcss.
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DVDCSS_VERBOSE={0|1|2}: libdvdcss verbosity
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0: no error messages, no debug messages (this is the default)
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1: only error messages
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2: error and debug messages
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Troubleshooting
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===============
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A mailing-list has been set up for support and discussion about
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libdvdcss. Its address is:
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<libdvdcss-devel@videolan.org>
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To subscribe or unsubscribe, go to:
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http://mailman.videolan.org/
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When reporting bugs, try to be as precise as possible (which OS, which
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distribution, what plugins you were trying, and so on).
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Resources
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=========
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The VideoLAN web site at http://www.videolan.org/ is a good start for
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information about MPEG and DVD playback. Have a look at the support
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section to look for answers.
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