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-
-Videocards with hardware acceleration:
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-* read DOCS/MTRR too!
-
-  "Hardware acceleration" usually means hardware YUV conversion, scaling,
-bilinear filtering. Under Linux, there are several ways to access it:
-
-I.   The Xv (XVideo) extension of XFree86 4.0.2
-I.1. Card-specific notes/settings
-II.  OpenGL drivers with glTexSubImage() support
-III. Native card-specific drivers, using special abilities of some cards
-IV.  DGA - direct graphic access. no YUV & scaling, but faster than raw X11
-V.   Not really acceleration, but...
-
-Now, let's see them in details:
-
-But before reading this, read DOCS/MTRR, and check your /proc/mtrr.
-Believe me, it's worth it! Speeds things up more than 5 times on P3!!!
-
-I. Under XFree86 4.0.2 or newer, using the XVideo extension:
-   this is what the option '-vo xv' uses.
-
-In order to make this work, be sure to check the following:
-
-1. You use XFree86 4.0.2 or newer (former versions don't have XVideo)
-
-2. Your card actually supports harware acceleration (modern cards do)
-
-3. X loads the XVideo extension, it's something like this:
-   (II) Loading extension XVideo
-   in /var/log/XFree86.0.log
-   NOTE : this loads only the XFree86's extension. In a good install, this is
-          always loaded, and doesn't mean that the _card's_ XVideo support is
-          loaded!
-
-4. Your card has Xv support under Linux. To check, try 'xvinfo', it is the
-   part of the XFree86 distribution. It should display a long text, similar
-   to this:
-
-	X-Video Extension version 2.2
-	screen #0
-	  Adaptor #0: "Savage Streams Engine"
-	    number of ports: 1
-	    port base: 43
-	    operations supported: PutImage 
-	    supported visuals:
-	      depth 16, visualID 0x22
-	      depth 16, visualID 0x23
-	    number of attributes: 5
-	(...)
-	    Number of image formats: 7
-	      id: 0x32595559 (YUY2)
-	        guid: 59555932-0000-0010-8000-00aa00389b71
-	        bits per pixel: 16
-	        number of planes: 1
-	        type: YUV (packed)
-	      id: 0x32315659 (YV12)
-	        guid: 59563132-0000-0010-8000-00aa00389b71
-	        bits per pixel: 12
-	        number of planes: 3
-	        type: YUV (planar)
-	(...etc...)
-
-   It must support YUY2 packed, and YV12 planar pixel formats to be
-   usable with MPlayer.
-
-I.1.
-  a, If xvinfo doesn't show these, but XVideo extension is loaded and you're
-     sure your card can do YUV conversion,
-    - 3dfx voodoo3/banshee users download a new DRI from
-      http://dri.sourceforge.net (or possibly use X 4.1.0)
-    - S3 Savage4 users download XFree86 >= 4.0.3 (4.1.0 preferred)
-    - nVidia users sell their card.. or download the nVidia driver from
-      nVidia's website
-  b, The GATOS driver (for ATI cards) has VSYNC enabled by default. It means
-     that decoding speed (!) is synced to the monitor's refresh rate. If
-     playing seems to be slow, try disabling VSYNC somehow, or set refresh
-     rate to n*(fps of the movie) Hz.
-
-5. Be sure MPlayer is compiled with the "xv" target. "./configure" should say:
-	Checking for Xv ... yes
-
-6. If all is fine, try the option '-vo xv' . It should work.
-   (if it doesn't, send us a bugreport. See the BUGREPORTS on how to do this.)
-
-
-II. OpenGL drivers with *working* *fast* glTexSubImage() support.
-
-   The old Utah-GLX drivers (for X 3.3.6) have it, with all cards.
-   See http://utah-glx.sourceforge.net for details about how to install it.
-
-   DRI >= 4.0.3 supports it only with Matrox cards, and Radeon.
-   See dri.sourceforge.net for download, and installation instructions.
-
-III. Native card-specific drivers
-
-There are 3 native drivers for Linux:
-1. Matrox G200/G400/G450 BES (Back-End Scaler) support -> mga_vid kernel drv.
-  It's active developed by me (A'rpi), and it has hardware VSYNC support
-  with triple buffering. It works on both framebuffer console and under X.
-  
-  To use, simply compile the mga_vid.o in the drivers/ subdir (type: make)
-  create /dev/mga_vid device :
-	mknod /dev/mga_vid c 178 0
-  and load the driver with insmod mga_vid.o. You should verify the memory size
-  detection using the 'dmesg' command. If it's bad, use the mga_ram_size
-  option (rmmod mga_vid first), specify card's memory size in MB:
-    insmod mga_vid.o mga_ram_size=16
-  To make it load/unload automatically when needed, insert the following line
-  at the end of /etc/modules.conf :
-	alias char-major-178 mga_vid
-  Then run
-	depmod -a
-
-  Using it from MPlayer:  (you should re-compile it with mga_vid support...)
-  
-  Use the 'mga' vo driver on framebuffer console (matroxfb): -vo mga
-  and use the xmga driver for X 3.3.x: -vo xmga
-
-  Note: it works under X 4.0.2 too, but it conflicts with the Xv driver,
-  so avoid using both. Usually X restart or reboot needs to get Xv usable
-  again :(
-  
-  If you have a dual-head G400, and a TV or second monitor connected to head2,
-  then you can watch movies on it: read DOCS/TVout-G400 for details (big hack)
-
-2. SiS 6326 YUV Framebuffer driver -> sis_vid kernel driver
-  Its interface should be compatible with the mga_vid, but the driver
-  was not updated after the mga_vid changes, so it's outdated now.
-  Volunteers needed to test it and bring the code up-to-date.
-
-3. 3dfx (which ones?) YUV+scaler support, using /dev/3dfx (tdfx.o driver?)
-  The /dev/3dfx kernel driver exists only for 2.2.x kernels, for use with
-  Glide 2.x Linux ports. It's not tested with MPlayer, and so no more
-  supported. Volunteers needed to test it and bring the code up-to-date.
-
-
-IV. If your card lacks hardware acceleration, you can still boost your fps by
-using the DGA driver:
-
-1. Make sure X loads the DGA extension:
-	(II) Loading extension XFree86-DGA
-   (you see, XFree86 4.0.x or greater is VERY RECOMMENDED!)
-2. MPlayer's DGA driver is autodetected on ./configure, or you can force it
-   with --enable-dga.
-3. If the driver couldn't switch to a smaller resolution, experiment with
-   switches -vm (only with X 3.3.x), -fs, -bpp, -zoom to find a video mode that
-   the movie fits in. There is no converter right now.. :(
-4. Become ROOT. DGA needs root access to be able to write directly video memory.
-   If you want to run it as user, then install MPlayer SUID root:
-   'chown root /usr/local/bin/mplayer'
-   'chmod 750 /usr/local/bin/mplayer' 
-   'chmod +s /usr/local/bin/mplayer' 
-   Now it works as a simple user, too.
-   !!!! BUT STAY TUNED !!!!
-   This is a BIG security risk! Never do this on a server or on a computer
-   can be accessed by more people than only you because they can gain root
-   privilegies through suid root mplayer.
-   !!!! SO YOU HAVE BEEN WARNED ... !!!!
-5. Use '-vo dga' option, and there you go! (hope so:)
-6. Try if the '-vo sdl:dga' options work for you! It's much faster!!!
-
-If you have fast enough CPU (P3 800 for example) you can try fsdga for
-fullscreen mpeg playing (using software YUV->RGB scaling):
-mplayer -vo fsdga ...
-
-
-V. Not really acceleration, but...
-
-a, If you don't have X...
-  ...use the SVGAlib target! Be sure not to use the -fs switch, since it
-  toggles the usage of the software scaler, and it's SLOOOW now, unless you
-  have a real fast CPU (and/or MTRR?). :(
-
-  Of course you'll have to install svgalib and its development package in
-  order for MPlayer build its SVGAlib driver (autodetected, but can be
-  forced), and don't forget to edit /etc/vga/libvga.config to suit your
-  card & monitor.
-
-  Try the aalib target ('-vo sdl:aalib'), it's great! :)
-
-b, You want to use framebuffer...
-  ... Whether to build the FBdev target is autodetected during ./configure .
-  Read the framebuffer documentation in the kernel sources
-  (Documentation/fb/*) for info on how to enable it, etc.. !
-
-  ... but your card doesn't support VBE 2.0 standard (older ISA/PCI
-  cards, such as S3 Trio64), only VBE 1.2 (or older?) :
-  Well, VESAfb is still available, but you'll have to load SciTech Display
-  Doctor (formerly UniVBE) before booting Linux.  Use a DOS boot disk or
-  whatever.  And don't forget to register your UniVBE ;))
-
-  NOTE : FBdev video mode changing _does not work_ with the VESA framebuffer,
-         and don't ask for it, since it's not an MPlayer limitation.
-
-	Gabucino & A'rpi
-