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Contents WHAT ARE MAP FILES HOWTO FINDING MAP FILES WHOM TO BLAME WHAT ARE MAP FILES ================== Map files are an experimental feature that lets you customize the way you watch DVDs. If you are opposed to violence, are sickened by gore, or would rather your two year old didn't ask you just yet why that woman in the movie was naked, you might want to create a map file. Map files identify sections of the movie that will be skipped during playback. You can skip any section you like with the only restriction (right now) that the movie player must play at least the last VOBU (about a fifth of a second) of each chapter in the movie in order to detect chapter changes correctly. Included with this patch is an example map file that describes most of the potentially objectionable content in the new "The Lord of the Rings" DVD. I've added a comment after each block that identifies what content it contains so that you can customize the file to your preferences. The map file looks something like this: # The Lord of the Rings: Fellowship of the Ring # (Widescreen Theatrical Release) debug domain 8, title 1, program 1, start 0x0000, end 0x1f0a # Introduction # history of middle earth #domain 2, title 1, program 1, start 0x9cba, end 0xcea4 # violence/war #domain 2, title 1, program 1, start 0xf018, end 0x1272c # violence/war domain 2, title 1, program 1, start 0x11ff3, end 0x1272c # gore #domain 2, title 1, program 1, start 0x173f1, end 0x185d6 # violence/death Place the map file in your .xine directory to enable the selected cuts as follows: cp FELLOWSHIP.map ~/.xine The debug command tells the map code that you would like to see the VOBU numbers as the movie is playing. Comment out this line to hide this output. The remaining lines are all either comments or blocks. Each block has a start and an end, and whenever Xine tries to load a VOBU between the start and end, it will be redirected to the end block instead. HOWTO ===== To create your own map files you would create a new map file using the title of the disk as the filename, and add the debug line to it. The map file should be placed in your '.xine' directory and have a '.map' extension added. For example "The Lord Of The Rings" map must be stored in the file ~/.xine/FELLOWSHIP.map After you create the file with the DEBUG line you will see output that looks like this in window where you started Xine: FELLOWSHIP: domain 8, title 1, program 1, start 2205, next 22a8 FELLOWSHIP: domain 8, title 1, program 1, start 22a8, next 234b FELLOWSHIP: domain 8, title 1, program 1, start 234b, next 23eb FELLOWSHIP: domain 8, title 1, program 1, start 23eb, next 248a Each line represents one VOBU, and the start and end addresses match the start and end addresses that you should place in the map file if you want to skip that block. If you want to skip multiple blocks you would just add one line with the start address of the first block to skip, and the end address of the last block to skip. For example to skip these four blocks you would add the following line to your map file: domain 8, title 1, program 1, start 0x2205, end 0x248a # 4 blocks Xine uses a buffered input chain so that if you pause the viewer you won't find the same VOBU being displayed on the terminal as is currently on the screen. In my testing the correct VOBU to use if you pause exactly on the section you want to cut will be about five or six lines above the last one printed to the screen. Replay the scene with the deletion to see if you caught the correct blocks. WHERE TO FIND MAP FILES ======================= If you create a map file for a new movie, please send it to me. If there is widespread interest I'll put up a site where map files can be located and downloaded. WHOM TO BLAME ============= If the patch doesn't work for you (and you want it to) you can contact me at 'email@example.com'. If the patch works for you and you don't want it to, remember that not everyone in the world has the same needs. The freedom to censor movies in our own homes is quite different from the government interfering into libraries and other public forums to censor movies for us.