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@@ -0,0 +1,62 @@ +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: 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 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. |