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diff --git a/doc/README.tvmode b/doc/README.tvmode new file mode 100644 index 000000000..08efe18d0 --- /dev/null +++ b/doc/README.tvmode @@ -0,0 +1,103 @@ +xine now has pre-alpha support for nvtvd. + +The nvtvd daemon from Dirk Thierbach enables the TV output on many +NVidia graphics cards. You need to run the nvtvd daemon before using +this patch (it silently disables the support if it cannot connect to +nvtvd). + +Source and binary distributions of nvtvd can be downloaded at + +http://nv-tv-out.sourceforge.net/ + + +TV output can be configured under the 'tv' tab of the configuration +screen. The following options are available: + +TV System: Select the systems your TV supports. + Initially, 'no TV connected' is selected. + PAL has 25 Hz full frame refresh rate and PAL color information. + PAL60 has 30 Hz full frame refresh rate and PAL color information. + NTSC has 30 Hz full frame refresh rate and NTSC color information. + +Mode Selection Policy: Choose how the mode will be selected with respect + to the played movie. + Currently this will not work as desired, + as the UI does not yet know neither native stream + resolutions nor native frame rates. + This will change in the future. + FPS - Best Native Match: + First select by FPS (25 vs. 30 Hz), then by best + native resolution (576 vs. 480 lines) + Currently this will use 30 Hz for FILM (24 fps). + FPS - Best Match: + First select by FPS (25 vs. 30 Hz), then by best matching + resolution + FPS - List Order: + First select by FPS (25 vs. 30 Hz), then the first working + resolution in the list + Best Match - FPS: + Select the best matching resolution, if ambigous, choose + the best FPS + There is only a difference to 'FPS - Best Match' if your + TV supports both, 25 and 30 Hz modes. + +Modes: This is the list of known TV modes. You can enter '-' here + to use the default list. + Format is: + <width>x<height>[/<overscan>][*<fps>][, ...] + When no overscan mode is given, the following list is tried: + 'DVD', 'Interl', 'Huge', 'Large', 'Normal' + When no FPS value is given, mode is valid for both, + 25 Hz and 30 Hz. + +Prefer PAL: If the played movie does not match neither 25 Hz nor 30 Hz + nor a mulitple of these frame rates, xine will select 25 Hz + if this option is selected, 30 Hz otherwise. + +Verbose: xine will print out tons of information about mode testing. + +Screen Aspect Ratio: This is not yet working. + + +vvvvv The following is not yet working (but will with the next version): + +xine will select the best mode for the current video stream. It will check +the stream for jittered video frame rates, thus it may take a few frames +until the correct video mode is selected. + +^^^^^ + +You can switch between normal mode, fullscreen mode, and TV mode (which is +fullscreen as well) with the 'f' key (configurable in ~/.xine/keymap) or +the '-f' command line option. Both will cycle through these modes. + +When xine exits or you press 'f' again, the original X mode will be +restored. When xine crashes, you should be able to restore the original +X mode by pressing 'Ctrl-Alt-KEYPAD_PLUS' and 'Ctrl-Alt-KEYPAD_MINUS'. +However, the tv encoder chip may continue to output its signal, and that +will be no valid TV signal any more. Old or cheap TVs may be damaged if +they are opposed to invalid singals for a longer time. +You have been warned. + + +There are two more things to be done to improve the look of interlaced +material: +- The video output has to be synchronized to vertical blank (SYNC extension) +- The video output has to be synchronized to top field output + +The second synchronization issue may even be impossible without manual +intervention for some TV encoder chips. Remember that some of these chips +were never designed to be used for interlaced video output... + +Until these issues have been dealt with, I encourage you to use xine's +deinterlacing feature on interlaced material. + + +For a list of supported TV encoder chips, see doc/chips.txt in the nvtvd +package. At the moment of writing Chrontel 700x, Booktree Bt8{68,69,70,71}, +Conexant CX2587{0,1}, and Philips SAA710{2,3,8,9} are supprorted. Currently +only NVidia cards are supported. Work for Intel810 and Vodoo 3dfx is on its +way, others may follow. + + +Matthias Hopf <mat@mshopf.de> |