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git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@6733 b3059339-0415-0410-9bf9-f77b7e298cf2
1243 lines
54 KiB
HTML
1243 lines
54 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<HTML>
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<HEAD>
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<LINK REL="stylesheet" TYPE="text/css" HREF="default.css">
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<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1">
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</HEAD>
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<BODY>
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<P><B><A NAME=2.3.1>2.3.1. Video output devices</A></B></P>
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<P><B><A NAME=2.3.1.1>2.3.1.1. Setting up MTRR</A></B></P>
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<P>It is VERY recommended to check if the MTRR registers are set up properly,
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because they can give a big performance boost.</P>
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<P>Do a '<CODE>cat /proc/mtrr</CODE>' :</P>
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<P><CODE>
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--($:~)-- cat /proc/mtrr<BR>
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reg00: base=0xe4000000 (3648MB), size= 16MB: write-combining, count=9<BR>
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reg01: base=0xd8000000 (3456MB), size= 128MB: write-combining, count=1<BR>
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</CODE></P>
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<P>It's right, shows my Matrox G400 with 16MB memory. I did this from
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XFree 4.x.x , which sets up MTRR registers automatically.</P>
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<P>If nothing worked, you have to do it manually. First, you have to find the base
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address.
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You have 3 ways to find it:</P>
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<UL>
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<LI>from X11 startup messages, for example:
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<P><CODE>(--) SVGA: PCI: Matrox MGA G400 AGP rev 4, Memory @ 0xd8000000, 0xd4000000<BR>
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(--) SVGA: Linear framebuffer at 0xD8000000</CODE></P></LI>
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<LI>from /proc/pci (use lspci -v command):
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<P>
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<CODE>01:00.0 VGA compatible controller: Matrox Graphics, Inc.: Unknown device 0525</CODE>
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<CODE>Memory at d8000000 (32-bit, prefetchable)</CODE>
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</P></LI>
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<LI>from mga_vid kernel driver messages (use dmesg):
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<P><CODE>mga_mem_base = d8000000</CODE></P></LI>
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</UL>
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<P>Then let's find the memory size. This is very easy, just convert video ram
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size to hexadecimal, or use this table:</P>
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<TABLE BORDER=0>
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<TR><TD> </TD><TD>1 MB</TD><TD WIDTH="10%"></TD><TD>0x100000</TD></TR>
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<TR><TD></TD><TD>2 MB</TD><TD></TD><TD>0x200000</TD></TR>
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<TR><TD></TD><TD>4 MB</TD><TD></TD><TD>0x400000</TD></TR>
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<TR><TD></TD><TD>8 MB</TD><TD></TD><TD>0x800000</TD></TR>
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<TR><TD></TD><TD>16 MB</TD><TD></TD><TD>0x1000000</TD></TR>
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<TR><TD></TD><TD>32 MB</TD><TD></TD><TD>0x2000000</TD></TR>
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</TABLE>
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<P>You know base address and memory size, let's setup MTRR registers!
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For example, for the Matrox card above (base=0xd8000000) with 32MB
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ram (size=0x2000000) just execute:</P>
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<P><CODE> echo "base=0xd8000000 size=0x2000000 type=write-combining" >| /proc/mtrr</CODE></P>
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<P>Not all CPUs support MTRRs. For example older K6-2's [around 266MHz,
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stepping 0] doesn't support MTRR, but stepping 12's do ('<CODE>cat /proc/cpuinfo</CODE>'
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to check it').</P>
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<P><B><A NAME=2.3.1.2>2.3.1.2. Xv</A></B></P>
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<P>Under XFree86 4.0.2 or newer, you can use your card's hardware YUV routines
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using the XVideo extension. This is what the option '-vo xv' uses. Also,
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this is driver supports adjusting brightness/contrast/hue/etc (unless you use
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the old, slow DirectShow DivX codec, which supports it everywhere), see the
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man page.</P>
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<P>In order to make this work, be sure to check the following:</P>
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<UL>
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<LI>You have to use XFree86 4.0.2 or newer (former versions don't have XVideo)</LI>
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<LI>Your card actually supports hardware acceleration (modern cards do)</LI>
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<LI>X loads the XVideo extension, it's something like this:
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<P><CODE> (II) Loading extension XVideo</CODE></P>
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<P>in /var/log/XFree86.0.log</P>
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<P>NOTE: this loads only the XFree86's extension. In a good install, this is
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always loaded, and doesn't mean that the _card's_ XVideo support is loaded!</P>
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<LI>Your card has Xv support under Linux. To check, try 'xvinfo', it is the
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part of the XFree86 distribution. It should display a long text, similar
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to this:
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<PRE>
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X-Video Extension version 2.2
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screen #0
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Adaptor #0: "Savage Streams Engine"
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number of ports: 1
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port base: 43
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operations supported: PutImage
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supported visuals:
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depth 16, visualID 0x22
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depth 16, visualID 0x23
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number of attributes: 5
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(...)
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Number of image formats: 7
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id: 0x32595559 (YUY2)
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guid: 59555932-0000-0010-8000-00aa00389b71
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bits per pixel: 16
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number of planes: 1
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type: YUV (packed)
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id: 0x32315659 (YV12)
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guid: 59563132-0000-0010-8000-00aa00389b71
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bits per pixel: 12
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number of planes: 3
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type: YUV (planar)
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(...etc...)
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</PRE>
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<P>It must support YUY2 packed, and YV12 planar pixel formats to be
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usable with <B>MPlayer</B>.</P>
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</LI>
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<LI>And finally, check if <B>MPlayer</B> was compiled with 'xv' support.
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./configure prints this.</LI>
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</UL>
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<P><B><A NAME=2.3.1.2.1>2.3.1.2.1. 3dfx cards</A></B></P>
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<P>Older 3dfx drivers were known to have problems with XVideo acceleration,
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it didn't support either YUY2 or YV12, and so. Verify that you have
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XFree86 version 4.2.0 or greater, it works OK with YV12 and YUY2. Previous
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versions, including 4.1.0 <B>crashes with YV12</B>!
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If you experience strange effects using -vo xv, try SDL (it has XVideo too)
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and see if it helps. Check the <A HREF="#2.3.1.4">SDL section</A> for details.</P>
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<P><B>OR</B>, try the NEW -vo tdfxfb driver! See the <A HREF="#2.3.1.9">2.3.1.9</A>
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section!</P>
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<P><B><A NAME=2.3.1.2.2>2.3.1.2.2. S3 cards</A></B></P>
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<P>S3 Savage3D's should work fine, but for Savage4, use XFree86 version 4.0.3
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or greater (in case of image problems, try 16bpp). As for S3 Virge.. there is
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xv support, but the card itself is very slow, so you better sell it.</P>
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<P><B>NOTE</B>: Savage cards have a slow YV12 image displaying capability (it needs
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to do YV12->YUY2 conversion, because the Savage hardware can't display YV12).
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So when this documentation says at some point "this has YV12 output use this,
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it's faster", it's not sure. Try <A HREF="http://www.mplayerhq.hu/MPlayer/contrib/Savage-driver/savage_drv.o.mmx2.bz2">this
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driver</A>, it uses MMX2 for this task and is faster than the native X driver.</P>
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<P><B><A NAME=2.3.1.2.3>2.3.1.2.3. nVidia cards</A></B></P>
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<P>nVidia isn't a very good choice under Linux (according to nVidia, this
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is <A HREF="users_against_developers.html#nvidia">not true</A>).. You'll have to use the
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binary closed-source nVidia driver, available at nVidia's web site. The standard XFree86
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driver doesn't support XVideo for these cards, due to nVidia's closed
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sources/specifications.</P>
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<P>As far as I know the latest XFree86 driver contains XVideo support for
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GeForce 2 and 3.</P>
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<P>Riva128 cards don't have XVideo support even with the nVidia driver :(
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Complain to nVidia.</P>
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<P><B><A NAME=2.3.1.2.4>2.3.1.2.4. ATI cards</A></B></P>
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<UL>
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<LI>The <A HREF="http://www.linuxvideo.org/gatos">GATOS driver</A> (which you
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should use, unless you have Rage128 or Radeon) has VSYNC enabled by default. It
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means that decoding speed (!) is synced to the monitor's refresh rate. If
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playing seems to be slow, try disabling VSYNC somehow, or set refresh rate to
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n*(fps of the movie) Hz.</LI>
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<LI>Radeon VE - currently only XFree86 CVS has driver for this card, version
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4.1.0 doesn't. And no TV out support. Of course with <B>MPlayer</B> you can
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happily get <B>accelerated</B> display, with or without <B>TV output</B>, and
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no libraries or X are needed. Read <A HREF="#2.3.1.14">Vidix</A> section.</LI>
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</UL>
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<P><B><A NAME=2.3.1.2.5>2.3.1.2.5. NeoMagic cards</A></B></P>
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<P>These cards can be found in many laptops. Unfortunately, the driver in
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X 4.2.0 can't do Xv, but we have a modified, Xv-capable driver for you.
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<A HREF="http://www.mplayerhq.hu/MPlayer/contrib/NeoMagic-driver/neomagic_drv.o.4.2.0.bz2">Download from here</A>.
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Driver provided by Stefan Seyfried.</P>
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<P>To allow playback of DVD sized content change your XF86Config like this :</P>
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<P>
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Section "Device"<BR>
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<I>[...]</I><BR>
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Driver "neomagic"<BR>
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<B>Option "OverlayMem" "829440"</B><BR>
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<I>[...]</I><BR>
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EndSection
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</P>
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<P><B><A NAME=2.3.1.2.6>2.3.1.2.6. Trident cards</A></B></P>
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<P>If you want to use xv with a trident card, provided that it doesn't
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work with 4.1.0, try the latest CVS of XFree or wait for XFree 4.2.0.
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The latest CVS adds support for fullscreen xv support with the
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Cyberblade XP card.</P>
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<P><B><A NAME=2.3.1.3>2.3.1.3. DGA</A></B></P>
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<P><B><A NAME=2.3.1.3.1>2.3.1.3.1. Summary</A></B></P>
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<P>This document tries to explain in some words what DGA is in general and
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what the DGA video output driver for <B>MPlayer</B> can do (and what it can't).</P>
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<P><B><A NAME=2.3.1.3.2>2.3.1.3.2. What is DGA</A></B></P>
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<P>DGA is short for Direct Graphics Access and is a means for a program to
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bypass the X-Server and directly modifying the framebuffer memory.
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Technically spoken this happens by mapping the framebuffer memory into
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the memory range of your process. This is allowed by the kernel only
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if you have superuser privileges. You can get these either by logging in
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as root or by setting the SUID bit on the <B>MPlayer</B> executable (NOT
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recommended!).</P>
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<P>There are two versions of DGA: DGA1 is used by XFree 3.x.x and DGA2 was
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introduced with XFree 4.0.1.</P>
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<P>DGA1 provides only direct framebuffer access as described above. For
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switching the resolution of the video signal you have to rely on the
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XVidMode extension.</P>
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<P>DGA2 incorporates the features of XVidMode extension and also allows
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switching the depth of the display. So you may, although basically
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running a 32 bit depth X server, switch to a depth of 15 bits and vice
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versa. </P>
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<P>However DGA has some drawbacks. It seems it is somewhat dependent on the
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graphics chip you use and on the implementation of the X server's video
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driver that controls this chip. So it does not work on every system ...</P>
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<P><B><A NAME=2.3.1.3.3>2.3.1.3.3. Installing DGA support for MPlayer</A></B></P>
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<P>First make sure X loads the DGA extension, see in /var/log/XFree86.0.log:</P>
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<P> <CODE>(II) Loading extension XFree86-DGA</CODE></P>
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<P>See, XFree86 4.0.x or greater is VERY RECOMMENDED!
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<B>MPlayer</B>'s DGA driver is autodetected on ./configure, or you can force it
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with --enable-dga.</P>
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<P>If the driver couldn't switch to a smaller resolution, experiment with
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switches -vm (only with X 3.3.x), -fs, -bpp, -zoom to find a video mode that
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the movie fits in. There is no converter right now.. :(</P>
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<P>Become ROOT. DGA needs root access to be able to write directly video memory.
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If you want to run it as user, then install <B>MPlayer</B> SUID root:</P>
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<P><CODE>
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chown root /usr/local/bin/mplayer<BR>
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chmod 750 /usr/local/bin/mplayer<BR>
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chmod +s /usr/local/bin/mplayer</CODE></P>
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<P>Now it works as a simple user, too.</P>
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<P><B>!!!! BUT STAY TUNED !!!!</B><BR>
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This is a <B>BIG</B> security risk! Never do this on a server or on a computer
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can be accessed by more people than only you because they can gain root
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privileges through SUID root <B>MPlayer</B>.<BR>
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<B>!!!! SO YOU HAVE BEEN WARNED ... !!!!</B></P>
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<P>Now use '-vo dga' option, and there you go! (hope so:)
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You should also try if the '-vo sdl:dga' option works for you! It's much
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faster!!!</P>
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<P><B><A NAME=2.3.1.3.4>2.3.1.3.4. Resolution switching</A></B></P>
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<P>The DGA driver allows for switching the resolution of the output signal.
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This avoids the need for doing (slow) software scaling and at the same
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time provides a fullscreen image. Ideally it would switch to the exact
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resolution (except for honoring aspect ratio) of the video data, but the
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X server only allows switching to resolutions predefined in
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<CODE>/etc/X11/XF86Config</CODE> (<CODE>/etc/X11/XF86Config-4</CODE> for XFree 4.0.X respectively).
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Those are defined by so-called modelines and depend on the capabilities
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of your video hardware. The X server scans this config file on startup and
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disables the modelines not suitable for your hardware. You can find
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out which modes survive with the X11 log file. It can be found at:
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<CODE>/var/log/XFree86.0.log</CODE>.</P>
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<P>See appendix A for some sample modeline definitions.</P>
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<P><B><A NAME=2.3.1.3.5>2.3.1.3.5. DGA & MPlayer</A></B></P>
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<P>DGA is used in two places with <B>MPlayer</B>: The SDL driver can be made to make
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use of it (-vo sdl:dga) and within the DGA driver (-vo dga).
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The above said is true for both; in the following sections I'll explain
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how the DGA driver for <B>MPlayer</B> works.</P>
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<P><B><A NAME=2.3.1.3.6>2.3.1.3.6. Features of the DGA driver</A></B></P>
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<P>The DGA driver is invoked by specifying -vo dga at the command line.
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The default behavior is to switch to a resolution matching the original
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resolution of the video as close as possible. It deliberately ignores the
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-vm and -fs switches (enabling of video mode switching and fullscreen) -
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it always tries to cover as much area of your screen as possible by switching
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the video mode, thus refraining to use a single additional cycle of your CPU
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to scale the image.
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If you don't like the mode it chooses you may force it to choose the mode
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matching closest the resolution you specify by -x and -y.
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By providing the -v option, the DGA driver will print, among a lot of other
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things, a list of all resolutions supported by your current XF86-Config
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file.
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Having DGA2 you may also force it to use a certain depth by using the -bpp
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option. Valid depths are 15, 16, 24 and 32. It depends on your hardware
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whether these depths are natively supported or if a (possibly slow)
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conversion has to be done.</P>
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<P>If you should be lucky enough to have enough offscreen memory left to
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put a whole image there, the DGA driver will use doublebuffering, which
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results in much smoother movie replaying. It will tell you whether double-
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buffering is enabled or not.</P>
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<P>Doublebuffering means that the next frame of your video is being drawn in
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some offscreen memory while the current frame is being displayed. When the
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next frame is ready, the graphics chip is just told the location in memory
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of the new frame and simply fetches the data to be displayed from there.
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In the meantime the other buffer in memory will be filled again with new
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video data.</P>
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<P>Doublebuffering may be switched on by using the option -double and may be
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disabled with -nodouble. Current default option is to disable
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doublebuffering. When using the DGA driver, onscreen display (OSD) only
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works with doublebuffering enabled. However, enabling doublebuffering may
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result in a big speed penalty (on my K6-II+ 525 it used an additional 20% of
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CPU time!) depending on the implementation of DGA for your hardware.</P>
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<P><B><A NAME=2.3.1.3.7>2.3.1.3.7. Speed issues</A></B></P>
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<P>Generally spoken, DGA framebuffer access should be at least as fast as using
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the X11 driver with the additional benefit of getting a fullscreen image.
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The percentage speed values printed by <B>MPlayer</B> have to be interpreted with
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some care, as for example, with the X11 driver they do not include the time
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used by the X-Server needed for the actual drawing. Hook a terminal to a
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serial line of your box and start top to see what is really going on in your
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box ...</P>
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<P>Generally spoken, the speedup done by using DGA against 'normal' use of X11
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highly depends on your graphics card and how well the X-Server module for it
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is optimized.</P>
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<P>If you have a slow system, better use 15 or 16bit depth since they require
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only half the memory bandwidth of a 32 bit display.</P>
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<P>Using a depth of 24bit is even a good idea if your card natively just supports
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32 bit depth since it transfers 25% less data compared to the 32/32 mode.</P>
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<P>I've seen some AVI files already be replayed on a Pentium MMX 266. AMD K6-2
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CPUs might work at 400 MHZ and above.</P>
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<P><B><A NAME=2.3.1.3.8>2.3.1.3.8. Known bugs</A></B></P>
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<P>Well, according to some developers of XFree, DGA is quite a beast. They
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tell you better not to use it. Its implementation is not always flawless
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with every chipset driver for XFree out there.</P>
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<UL>
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<LI>With XFree 4.0.3 and nv.o there is a bug resulting in strange colors.</LI>
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<LI>ATI driver requires to switch mode back more than once after finishing
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using of DGA.</LI>
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<LI>Some drivers simply fail to switch back to normal resolution (use
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Ctrl-Alt-Keypad +, - to switch back manually).</LI>
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<LI>Some drivers simply display strange colors.</LI>
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<LI>Some drivers lie about the amount of memory they map into the process's
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address space, thus vo_dga won't use doublebuffering (SIS?).</LI>
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<LI>some drivers seem to fail to report even a single valid mode. In this
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case the DGA driver will crash telling you about a nonsense mode of
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100000x100000 or the like ...</LI>
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<LI>OSD only works with doublebuffering enabled.</LI>
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</UL>
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|
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<P><B><A NAME=2.3.1.3.9>2.3.1.3.9. Future work</A></B></P>
|
|
|
|
<UL>
|
|
<LI>use of the new X11 render interface for OSD</LI>
|
|
<LI>where is my TODO list ???? :-(((</LI>
|
|
</UL>
|
|
|
|
|
|
<P><B><A NAME=2.3.1.3.A>2.3.1.3.A. Some modelines</A></B></P>
|
|
|
|
<PRE>
|
|
Section "Modes"
|
|
Identifier "Modes[0]"
|
|
Modeline "800x600" 40 800 840 968 1056 600 601 605 628
|
|
Modeline "712x600" 35.0 712 740 850 900 400 410 412 425
|
|
Modeline "640x480" 25.175 640 664 760 800 480 491 493 525
|
|
Modeline "400x300" 20 400 416 480 528 300 301 303 314 Doublescan
|
|
Modeline "352x288" 25.10 352 368 416 432 288 296 290 310
|
|
Modeline "352x240" 15.750 352 368 416 432 240 244 246 262 Doublescan
|
|
Modeline "320x240" 12.588 320 336 384 400 240 245 246 262 Doublescan
|
|
EndSection
|
|
</PRE>
|
|
|
|
<P>These entries work fine with my Riva128 chip, using nv.o X server driver
|
|
module.</P>
|
|
|
|
|
|
<P><B><A NAME=2.3.1.3.B>2.3.1.3.B. Bug Reports</A></B></P>
|
|
|
|
<P>If you experience troubles with the DGA driver please feel free to file
|
|
a bug report to me (e-mail address below). Please start <B>MPlayer</B> with the
|
|
-v option and include all lines in the bug report that start with vo_dga:</P>
|
|
|
|
<P>Please do also include the version of X11 you are using, the graphics card
|
|
and your CPU type. The X11 driver module (defined in XF86-Config) might
|
|
also help. Thanks!</P>
|
|
|
|
|
|
<P><I>Acki (acki@acki-netz.de, www.acki-netz.de)</I></P>
|
|
|
|
|
|
<P><B><A NAME=2.3.1.4>2.3.1.4. SDL</A></B></P>
|
|
|
|
<P>SDL (Simple Directmedia Layer) is basically a unified video/audio
|
|
interface. Programs that use it know only about SDL, and not about what video
|
|
or audio driver does SDL actually use. For example a Doom port using SDL can
|
|
run on svgalib, aalib, X, fbdev, and others, you only have to specify the
|
|
(for example) video driver to use with the SDL_VIDEODRIVER environment
|
|
variable. Well, in theory.</P>
|
|
|
|
<P>With <B>MPlayer</B>, we used its X11 driver's software scaler ability for
|
|
cards/drivers that doesn't support XVideo, until we made our own (faster,
|
|
nicer) software scaler. Also we used its aalib output, but now we have ours
|
|
which is more comfortable. Its DGA mode was better than ours, until
|
|
recently. Get it now? :)</P>
|
|
|
|
<P>It also helps with some buggy drivers/cards if the video is jerky
|
|
(not slow system problem), or audio is lagging.</P>
|
|
|
|
<P>SDL video output supports displaying subtitles under the movie, on the (if
|
|
present) black bar.</P>
|
|
|
|
<P>Here are some notes about SDL out in <B>MPlayer</B>.</P>
|
|
|
|
|
|
|
|
<TABLE BORDER=0>
|
|
<TR><TD COLSPAN=4><P><B>There are several command line switches for SDL:</B></P></TD></TR>
|
|
<TR><TD> </TD><TD><CODE>-vo sdl:name</CODE></TD><TD> </TD><TD>
|
|
specifies sdl video driver to use (i.e.. aalib, dga, x11)</TD></TR>
|
|
<TR><TD></TD><TD><CODE>-ao sdl:name</CODE></TD><TD></TD><TD>specifies sdl audio driver to use (i.e.. dsp,
|
|
esd, arts)</TD></TR>
|
|
<TR><TD></TD><TD><CODE>-noxv</CODE></TD><TD></TD><TD>disables XVideo hardware acceleration</TD></TR>
|
|
<TR><TD></TD><TD><CODE>-forcexv</CODE></TD><TD></TD><TD>tries to force XVideo acceleration</TD></TR>
|
|
|
|
<TR><TD COLSPAN=4><P><B>SDL Keys:</B></P></TD></TR>
|
|
|
|
<TR><TD></TD><TD><CODE>F</CODE></TD><TD></TD><TD>toggles fullscreen/windowed mode</TD></TR>
|
|
<TR><TD></TD><TD><CODE>C</CODE></TD><TD></TD><TD>cycles available fullscreen modes</TD></TR>
|
|
<TR><TD></TD><TD><CODE>W/S</CODE></TD><TD></TD><TD>mappings for * and / (mixer control)</TD></TR>
|
|
|
|
</TABLE>
|
|
|
|
<P><B>KNOWN BUGS:</B></P>
|
|
<UL><LI>Keys pressed under sdl:aalib console driver repeat forever. (use -vo aa !)
|
|
It's bug in SDL, I can't change it (tested with SDL 1.2.1).
|
|
</UL>
|
|
|
|
<P><B><A NAME=2.3.1.5>2.3.1.5. SVGAlib</A></B></P>
|
|
|
|
<P><B><U>Installation</U></B><BR>
|
|
You'll have to install svgalib and its development package in order for
|
|
<B>MPlayer</B> build its SVGAlib driver (autodetected, but can be forced),
|
|
and don't forget to edit /etc/vga/libvga.config to suit your card &
|
|
monitor.</P>
|
|
|
|
<P><B><U>Notes</U></B><BR>
|
|
Be sure not to use the -fs switch, since it toggles the usage of the software
|
|
scaler, and it's slow. If you really need it, use the <CODE>-sws 4</CODE>
|
|
option which will produce bad quality, but is somewhat faster.</P>
|
|
|
|
<P><B><U>EGA (4bpp) support</U></B><BR>
|
|
SVGAlib incorporates EGAlib, and <B>MPlayer</B> has the possibility to
|
|
display any movie in 16 colors, thus usable in the following sets:</P>
|
|
|
|
<UL>
|
|
<LI>EGA card with EGA monitor: 320x200x4bpp, 640x200x4bpp, 640x350x4bpp</LI>
|
|
<LI>EGA card with CGA monitor: 320x200x4bpp, 640x200x4bpp</LI>
|
|
</UL>
|
|
|
|
<P>The bpp (bits per pixel) value must be set to 4 by hand:<BR>
|
|
<CODE>-bpp 4</CODE><BR>
|
|
The movie probably must be scaled down to fit in EGA mode:<BR>
|
|
<CODE>-vop scale=640:350</CODE> or<BR>
|
|
<CODE>-vop scale=320:200</CODE><BR>
|
|
For that we need fast but bad quality scaling routine:<BR>
|
|
<CODE>-sws 4</CODE><BR>
|
|
Maybe automatic aspect correction has to be shut off:<BR>
|
|
<CODE>-noaspect</CODE><BR>
|
|
</P>
|
|
|
|
|
|
<P><B><A NAME=2.3.1.6>2.3.1.6. Framebuffer output (FBdev)</A></B></P>
|
|
|
|
<P>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.. !</P>
|
|
|
|
<P>If 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 ;))</P>
|
|
|
|
<P>The FBdev output takes some additional parameters above the others:</P>
|
|
|
|
<TABLE BORDER=0>
|
|
<TR><TD> </TD><TD><CODE>-fb</CODE></TD><TD> </TD><TD>
|
|
specify the framebuffer device to use (/dev/fb0)</TD></TR>
|
|
<TR><TD></TD><TD><CODE>-fbmode</CODE></TD><TD></TD><TD>mode name to use (according to /etc/fb.modes)</TD></TR>
|
|
<TR><TD></TD><TD><CODE>-fbmodeconfig</CODE></TD><TD></TD><TD> config file of modes (default /etc/fb.modes)</TD></TR>
|
|
<TR><TD></TD><TD><CODE>-monitor_hfreq</CODE></TD><TD></TD><TD ROWSPAN=3>IMPORTANT values, see example.conf</TD></TR>
|
|
<TR><TD></TD><TD><CODE>-monitor_vfreq</CODE></TD><TD></TD></TR>
|
|
<TR><TD></TD><TD><CODE>-monitor_dotclock</CODE></TD><TD></TD></TR>
|
|
</TABLE>
|
|
|
|
<P>If you want to change to a specific mode, then use</P>
|
|
|
|
<P><CODE> mplayer -vm -fbmode (NameOfMode) filename</CODE></P>
|
|
|
|
<UL>
|
|
<LI><B>-vm</B> alone will choose the most suitable mode from /etc/fb.modes . Can be
|
|
used together with -x and -y options too. The -flip option is supported only
|
|
if the movie's pixel format matches the video mode's pixel format.
|
|
Pay attention to the bpp value, fbdev driver tries to use the current,
|
|
or if you specify the -bpp option, then that.</LI>
|
|
<LI><B>-zoom</B> option isn't supported (software scaling is slow). -fs option
|
|
isn't supported. You can't use 8bpp (or less) modes.</LI>
|
|
<LI>you possibly want to turn the cursor off : <CODE>echo -e '\033[?25l'</CODE>
|
|
or <CODE>setterm -cursor off</CODE><BR>
|
|
and the screen saver: <CODE>setterm -blank 0</CODE><BR>
|
|
To turn the cursor back on : <CODE>echo -e '\033[?25h'</CODE>
|
|
or <CODE>setterm -cursor on</CODE></LI>
|
|
</UL>
|
|
|
|
<P>NOTE: FBdev video mode changing _does not work_ with the VESA framebuffer,
|
|
and don't ask for it, since it's not an <B>MPlayer</B> limitation.</P>
|
|
|
|
<P><B><A NAME=2.3.1.7>2.3.1.7. Matrox framebuffer (mga_vid)</A></B></P>
|
|
|
|
<P>This section is about the Matrox G200/G400/G450/G550 BES (Back-End Scaler)
|
|
support, the mga_vid kernel driver. 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.</P>
|
|
|
|
<P><B>WARNING</B>: on non-Linux systems, use <A HREF="#2.3.1.14">Vidix</A> for
|
|
mga_vid !!!</P>
|
|
|
|
<P>To use it, you first have to compile mga_vid.o:</P>
|
|
|
|
<P><CODE> cd drivers<BR>
|
|
make</CODE></P>
|
|
|
|
<P>Then create /dev/mga_vid device:</P>
|
|
|
|
<P><CODE> mknod /dev/mga_vid c 178 0</CODE></P>
|
|
|
|
<P>and load the driver with</P>
|
|
|
|
<P><CODE> insmod mga_vid.o</CODE></P>
|
|
|
|
<P>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:</P>
|
|
|
|
<P><CODE> insmod mga_vid.o mga_ram_size=16</CODE></P>
|
|
|
|
<P>To make it load/unload automatically when needed, first insert the following line
|
|
at the end of /etc/modules.conf:</P>
|
|
|
|
<P><CODE> alias char-major-178 mga_vid</CODE></P>
|
|
|
|
<P>Then copy the <CODE>mga_vid.o</CODE> module to the appropriate place under
|
|
<CODE>/lib/modules/<kernel version>/somewhere</CODE>.</P>
|
|
|
|
<P>Then run</P>
|
|
|
|
<P><CODE> depmod -a</CODE></P>
|
|
|
|
<P>Now you have to (re)compile <B>MPlayer</B>, ./configure will detect /dev/mga_vid
|
|
and build the 'mga' driver. Using it from <B>MPlayer</B> goes by '-vo mga' if
|
|
you have matroxfb console, or '-vo xmga' under XFree86 3.x.x or 4.x.x.</P>
|
|
|
|
<P>The mga_vid driver cooperates with Xv.</P>
|
|
|
|
<P>The <CODE>/dev/mga_vid</CODE> device file can be read (for example by
|
|
<CODE>cat /dev/mga_vid</CODE>) for some info, and written for brightness
|
|
change : <CODE>echo "brightness=120" > /dev/mga_vid</CODE></P>
|
|
|
|
|
|
<P><B><A NAME=2.3.1.8>2.3.1.8. SiS 6326 framebuffer (sis_vid)</A></B></P>
|
|
|
|
<P>SiS 6326 YUV Framebuffer driver -> sis_vid kernel driver</P>
|
|
|
|
<P>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.</P>
|
|
|
|
<P><B><A NAME=2.3.1.9>2.3.1.9. 3dfx YUV support (tdfxfb)</A></B></P>
|
|
|
|
<P>This driver uses the kernel's tdfx framebuffer driver to play movies with
|
|
YUV acceleration. You'll need a kernel with tdfxfb support, and recompile with
|
|
<CODE>./configure --enable-tdfxfb</CODE></P>
|
|
|
|
<P><B><A NAME=2.3.1.10>2.3.1.10. OpenGL output</A></B></P>
|
|
|
|
<P><B>MPlayer</B> supports displaying movies using OpenGL, but if your
|
|
platform/driver supports xv as should be the case on a PC with Linux, use xv
|
|
instead, OpenGL performance is considerably worse. If you have an X11
|
|
implementation without xv support, OpenGL is a viable alternative.</P>
|
|
|
|
<P>Unfortunately not all drivers support this feature. The Utah-GLX drivers
|
|
(for XFree86 3.3.6) support it for all cards. See
|
|
<A HREF="http://utah-glx.sourceforge.net">http://utah-glx.sourceforge.net</A>
|
|
for details about how to install it.</P>
|
|
|
|
<P>XFree86(DRI) >= 4.0.3 supports OpenGL with Matrox and Radeon cards, >= 4.2
|
|
supports Rage128. See
|
|
<A HREF="http://dri.sourceforge.net">http://dri.sourceforge.net</A>
|
|
for download and installation instructions.</P>
|
|
|
|
<P><B><A NAME=2.3.1.11>2.3.1.11. AAlib - text mode displaying</A></B></P>
|
|
|
|
<P><B>AAlib</B> is a library for displaying graphics in text mode, using powerful
|
|
ASCII renderer. There are LOTS of programs already supporting it, like Doom,
|
|
Quake, etc. <B>MPlayer</B> contains a very usable driver for it.
|
|
If ./configure detects aalib installed, the aalib libvo driver will be built.</P>
|
|
|
|
<TABLE BORDER=0>
|
|
<TR><TD COLSPAN=4><P><B>You can use some keys in the AA Window to change rendering options:</B></P></TD></TR>
|
|
<TR><TD> </TD><TD><CODE>1</CODE></TD><TD> </TD><TD>decrease contrast</TD></TR>
|
|
<TR><TD></TD><TD><CODE>2</CODE></TD><TD></TD><TD>increase contrast</TD></TR>
|
|
<TR><TD></TD><TD><CODE>3</CODE></TD><TD></TD><TD>decrease brightness</TD></TR>
|
|
<TR><TD></TD><TD><CODE>4</CODE></TD><TD></TD><TD>increase brightness</TD></TR>
|
|
<TR><TD></TD><TD><CODE>5</CODE></TD><TD></TD><TD>switch fast rendering on/off</TD></TR>
|
|
<TR><TD></TD><TD><CODE>6</CODE></TD><TD></TD><TD>set dithering mode (none, error distribution, Floyd Steinberg)</TD></TR>
|
|
<TR><TD></TD><TD><CODE>7</CODE></TD><TD></TD><TD>invert image</TD></TR>
|
|
<TR><TD></TD><TD><CODE>a</CODE></TD><TD></TD><TD>toggles between aa and <B>MPlayer</B> control)</TD></TR>
|
|
|
|
<TR><TD COLSPAN=4><P><B>The following command line options can be used:</B></P></TD></TR>
|
|
|
|
<TR><TD></TD><TD><CODE>-aaosdcolor=V</CODE></TD><TD></TD><TD>change OSD color</TD></TR>
|
|
<TR><TD></TD><TD><CODE>-aasubcolor=V</CODE></TD><TD></TD><TD>change subtitle color</TD></TR>
|
|
<TR><TD COLSPAN=3></TD><TD><P><I>where V can be: (0/normal, 1/dark, 2/bold, 3/bold font, 4/reverse, 5/special)</I></P></TD></TR>
|
|
|
|
<TR><TD COLSPAN=4><P><B>AAlib itself provides a large sum of options.
|
|
Here are some important:</B></P></TD></TR>
|
|
|
|
<TR><TD></TD><TD><CODE>-aadriver</CODE></TD><TD></TD><TD>set recommended aa driver (X11, curses, Linux)</TD></TR>
|
|
<TR><TD></TD><TD><CODE>-aaextended</CODE></TD><TD></TD><TD>use all 256 characters</TD></TR>
|
|
<TR><TD></TD><TD><CODE>-aaeight</CODE></TD><TD></TD><TD>use eight bit ASCII</TD></TR>
|
|
<TR><TD></TD><TD><CODE>-aahelp</CODE></TD><TD></TD><TD>prints out all aalib options</TD></TR>
|
|
</TABLE>
|
|
|
|
<P>NOTE: the rendering is very CPU intensive, especially when using AA-on-X
|
|
(using aalib on X), and it's least CPU intensive on standard,
|
|
non-framebuffer console. Use SVGATextMode to set up a big textmode,
|
|
then enjoy! (secondary head Hercules cards rock :)) (anyone can enhance
|
|
fbdev to do conversion/dithering to hgafb? Would be neat :)</P>
|
|
|
|
<P>Use the <CODE>-framedrop</CODE> option if your computer isn't fast enough to
|
|
render all frames!</P>
|
|
|
|
<P>Playing on terminal you'll get better speed and quality using the Linux driver, not
|
|
curses (-aadriver linux). But therefore you need write access on /dev/vcsa<terminal>!
|
|
That isn't autodetected by aalib, but vo_aa tries to find the best mode.
|
|
See <A HREF="http://aa-project.sourceforge.net/tune/">http://aa-project.sourceforge.net/tune/</A> for further tuning issues.</P>
|
|
|
|
|
|
<P><B><A NAME=2.3.1.12>2.3.1.12. VESA - output to VESA BIOS</A></B></P>
|
|
<P>
|
|
This driver was designed and introduced as a <B>generic driver</B> for any video
|
|
card which has VESA VBE 2.0 compatible BIOS. Another advantage of this
|
|
driver is that it tries to force TV output on.<BR>
|
|
<B>VESA BIOS EXTENSION (VBE) Version 3.0 Date: September 16, 1998</B> (Page 70)
|
|
says:
|
|
</P>
|
|
|
|
<BLOCKQUOTE>
|
|
<B>Dual-Controller Designs</B><BR>
|
|
VBE 3.0 supports the dual-controller design by assuming that since both
|
|
controllers are typically provided by the same OEM, under control of a
|
|
single BIOS ROM on the same graphics card, it is possible to hide the fact
|
|
that two controllers are indeed present from the application. This has the
|
|
limitation of preventing simultaneous use of the independent controllers,
|
|
but allows applications released before VBE 3.0 to operate normally. The
|
|
VBE Function 00h (Return Controller Information) returns the combined
|
|
information of both controllers, including the combined list of available modes.
|
|
When the application selects a mode, the appropriate controller is activated.
|
|
Each of the remaining VBE functions then operates on the active controller.
|
|
</BLOCKQUOTE>
|
|
|
|
<P>
|
|
So you have chances to get working TV-out by using this driver.<BR>
|
|
(I guess that TV-out frequently is standalone head or standalone output
|
|
at least.)
|
|
</P>
|
|
|
|
<P>
|
|
<B>What are pluses:</B><BR>
|
|
- You have chances to watch movies <B>if Linux even doesn't know</B> your video hardware.<BR>
|
|
- You don't need to have installed any graphics' related things on your Linux
|
|
(like X11 (aka XFree86), fbdev and so on). This driver can be run from
|
|
<B>text-mode</B>.<BR>
|
|
- You have chances to get <B>working TV-out</B>. (It's known at least for ATI's cards).<BR>
|
|
- This driver calls <B>int 10h</B> handler thus it's not an emulator - it
|
|
calls <B>real</B> things of <B>real</B> BIOS in <B>real</B>-mode. (Finely -
|
|
in vm86 mode).<BR>
|
|
- You can use Vidix with it, thus getting accelerated video display
|
|
<B>AND</B> TV output at the same time! (recommended for ATI cards)
|
|
</P>
|
|
|
|
<P>
|
|
<B>What are minuses:</B><BR>
|
|
- It works only on <B>x86 systems</B>.<BR>
|
|
- It can be used only by <B>ROOT</B>.<BR>
|
|
- Currently it's available only for <B>Linux</B>.<BR>
|
|
</P>
|
|
|
|
<P>Don't use this driver with <B>GCC 2.96</B> ! It won't work !</P>
|
|
|
|
<TABLE BORDER=0>
|
|
<TR><TD COLSPAN=4><P><B>These switches of command line currently are available for VESA:</B></P></TD></TR>
|
|
<TR><TD> </TD><TD VALIGN="top"><CODE>-vo vesa:opts</CODE></TD><TD></TD><TD>currently recognized: <B>dga</B> to force dga mode and <B>nodga</B> to disable dga mode. Note: you may omit these parameters to enable <B>autodetect</B> of dga mode. (In the future also will specify mode parameters such as refresh rate, interlacing, doublescan and so on. Samples: i43, 85, d100)</TD></TR>
|
|
<TR><TD></TD><TD VALIGN="top"><CODE>-screenw, -screenh, -bpp</CODE></TD><TD></TD><TD>force userdefined mode</TD></TR>
|
|
<TR><TD></TD><TD VALIGN="top"><CODE>-x, -y</CODE></TD><TD></TD><TD>set userdefined prescaling</TD></TR>
|
|
<TR><TD></TD><TD VALIGN="top"><CODE>-zoom</CODE></TD><TD></TD><TD>enables userdefined prescaling</TD></TR>
|
|
<TR><TD></TD><TD VALIGN="top"><CODE>-fs</CODE></TD><TD></TD><TD>scales image to fullscreen</TD></TR>
|
|
<TR><TD></TD><TD VALIGN="top"><CODE>-fs -zoom</CODE></TD><TD></TD><TD>scales userdefined prescaling to fullscreen</TD></TR>
|
|
<TR><TD></TD><TD VALIGN="top"><CODE>-double</CODE></TD><TD></TD><TD>enables double buffering mode. (Available only in DGA mode). Should be slower of single buffering, but has no flickering effects.</TD></TR>
|
|
</TABLE>
|
|
|
|
<P>
|
|
<B>Known problems and workaround:</B><BR>
|
|
- If you have installed <B>NLS</B> font on your Linux box and run VESA driver
|
|
from text-mode then after terminating <B>MPlayer</B> you will have <B>ROM font</B> loaded instead
|
|
of national. You can load national font again by using <B><I>setsysfont</I></B> utility
|
|
from for example Mandrake distribution.<BR>
|
|
(<B>Hint</B>: The same utility is used for localization of fbdev).<BR>
|
|
- Some <B>Linux graphics drivers</B> don't update active <B>BIOS mode</B> in DOS memory. So if you have such
|
|
problem - always use VESA driver only from <B>text-mode</B>. Otherwise text-mode (#03) will be
|
|
activated anyway and you will need restart your computer.<BR>
|
|
- Often after terminating VESA driver you get <B>black screen</B>. To return your screen
|
|
to original state - simply switch to other console (by pressing <B>Alt-Fx</B>) then switch
|
|
to your previous console by the same way.<BR>
|
|
- To get <B>working TV-out</B> you need have plugged TV-connector in before booting
|
|
your PC since video BIOS initializes itself only once during POST procedure.
|
|
</P>
|
|
|
|
|
|
<P><B><A NAME=2.3.1.13>2.3.1.13. X11</A></B></P>
|
|
|
|
<P>Avoid if possible. Outputs to X11 (uses shared memory extension), with no
|
|
hardware acceleration at all. Supports (MMX/3DNow/SSE accelerated, but still
|
|
slow) software scaling, use the options <CODE>-fs -zoom</CODE>. Most cards have
|
|
hardware scaling support, use the <CODE>-vo xv</CODE> output for them, or
|
|
<CODE>-vo xmga</CODE> for Matroxes.</P>
|
|
|
|
<P>The problem is that most cards' driver doesn't support
|
|
hardware acceleration on the second head/TV. In those cases, you see green/blue
|
|
colored window instead of the movie. This is where this driver comes in
|
|
handy, but you need powerful CPU to use software scaling. Don't use the
|
|
SDL driver's software output+scaler, it has worse image quality !</P>
|
|
|
|
<P>Software scaling is very slow, you better try changing video modes instead.
|
|
It's very simple. See the <A HREF="#2.3.1.3.A">DGA section's modelines</A>, and
|
|
insert them into your XF86Config.</P>
|
|
<UL>
|
|
<LI>If you have XFree86 4.x.x - use the <CODE>-vm</CODE> option. It will
|
|
change to a resolution your movie fits in. If it doesn't :</LI>
|
|
<LI>With XFree86 3.x.x - you have to cycle through available resolutions
|
|
with the <B>CTRL-ALT-plus</B> and <B>minus</B> keys.</LI>
|
|
</UL>
|
|
|
|
<P>If you can't find the modes you inserted, browse XFree86's output. Some
|
|
drivers can't use low pixelclocks that are needed for low resolution
|
|
video modes.</P>
|
|
|
|
|
|
<P><B><A NAME=2.3.1.14>2.3.1.14. Vidix</A></B></P>
|
|
|
|
<P><B>WHAT IS VIDIX?</B></P>
|
|
|
|
<P>VIDIX is the abbreviation for <B>VID</B>eo <B>I</B>nterface for
|
|
*ni<B>X</B>.<BR>
|
|
VIDIX was designed and introduced as an interface for fast user-space drivers
|
|
providing such video performance as mga_vid does for Matrox cards. It's
|
|
also very portable.</P>
|
|
|
|
<P>This interface was designed as an attempt to fit existing video acceleration
|
|
interfaces (known as mga_vid, rage128_vid, radeon_vid, pm3_vid) into a fixed scheme. It
|
|
provides highlevel interface to chips which are known as BES (BackEnd
|
|
scalers) or OV (Video Overlays). It doesn't provide lowlevel interface to
|
|
things which are known as graphics servers. (I don't want to compete with X11
|
|
team in graphics mode switching). I.e. main goal of this interface is to
|
|
maximize the speed of video playback.
|
|
</P>
|
|
|
|
<P><B>USAGE</B></P>
|
|
|
|
<UL>
|
|
<LI>You can use standalone video output driver: <CODE>-vo xvidix</CODE><BR>
|
|
This driver was developed as X11's front end to VIDIX technology. It
|
|
requires X server and can work only under X server.</LI>
|
|
<LI>You can use VIDIX subdevice which was applied to several video output
|
|
drivers, such as:<BR>
|
|
<CODE>-vo vesa:vidix</CODE> (<B>LINUX ONLY</B>) and <CODE>-vo fbdev:vidix</CODE></LI>
|
|
</UL>
|
|
Indeed it doesn't matter which video output driver is used with <B>VIDIX</B>.
|
|
|
|
<P><B>REQUIREMENTS</B></P>
|
|
|
|
<UL>
|
|
<LI>video card should be in graphics mode (I write <B>should</B> simply
|
|
because I tested it in text mode - it works but has awful output ;) Use
|
|
AAlib for that).<BR>
|
|
<I>Note: Everyone can try this trick by commenting out mode switching in
|
|
vo_vesa driver.</I></LI>
|
|
<LI><B>MPlayer</B>'s video output driver should know active video mode and be
|
|
able to tell to VIDIX subdevice some video characteristics of server.</LI>
|
|
</UL>
|
|
I hope that probably every video output driver of <B>MPlayer</B> will
|
|
recognize <CODE>:vidix</CODE> subdevice.
|
|
|
|
<P><B>USAGE METHODS</B></P>
|
|
|
|
<P>When VIDIX is used as <B>subdevice</B> (<CODE>-vo vesa:vidix</CODE>) then
|
|
video mode configuration is performed by video output device
|
|
(<B>vo_server</B> in short). Therefore you can pass into command line of
|
|
<B>MPlayer</B> the same keys as for vo_server. In addition it understands
|
|
<CODE>-double</CODE> key as globally visible parameter. (I recommend using
|
|
this key with VIDIX at least for ATI's card).<BR>
|
|
As for <CODE>-vo xvidix</CODE> : currently it recognizes the following
|
|
options: <CODE>-fs -zoom -x -y -double</CODE>.<BR>
|
|
</P>
|
|
|
|
<P>Also you can specify VIDIX's driver directly as third subargument in command
|
|
line :<BR>
|
|
<BR>
|
|
<code>mplayer -vo xvidix:mga_vid.so -fs -zoom -double
|
|
file.avi</code><BR>
|
|
or<BR>
|
|
<code>mplayer -vo vesa:vidix:radeon_vid.so -fs -zoom -double -bpp
|
|
32 file.avi</code><BR>
|
|
<BR>
|
|
But it's dangerous, and you shouldn't do that. In this case given driver will
|
|
be forced and result is unpredictable (it may <B>freeze</B> your
|
|
computer). You should do that ONLY if you are absolutely sure it will work,
|
|
and <B>MPlayer</B> doesn't do it automatically. Please tell about it to the
|
|
developers. The Right Way is to use VIDIX without arguments to enable driver
|
|
autodetection.
|
|
</P>
|
|
|
|
<P>
|
|
VIDIX is very new technology and it's extremely possible that on your system
|
|
(OS=abc CPU=xyz) it won't work. In this case only solution for you it's port
|
|
it (mainly libdha). But there is hope that it will work on those systems
|
|
where X11 does.
|
|
</P>
|
|
|
|
<P>And the last <B>WARNING</B>: (un)fortunately you <B>MUST</B> have
|
|
<B>ROOT</B> privileges to use VIDIX due to direct hardware access. At least
|
|
set the <B>SUID</B> bit on the <B>MPlayer</B> executable.
|
|
</P>
|
|
|
|
<P><B>VIDEO EQUALIZER</B></P>
|
|
|
|
<P>
|
|
This is a video equalizer implemented especially for Vidix. You can use
|
|
it either with <B>1-8</B> keys as described in the man page, or
|
|
by command line arguments. <B>MPlayer</B> recognizes the
|
|
following options :
|
|
</P>
|
|
|
|
<TABLE>
|
|
<TR><TD> </TD><TD VALIGN="top"><CODE>-brightness</CODE></TD><TD> </TD>
|
|
<TD>Adjust <B>BRIGHTNESS</B> of video output. It's not equal to brightness
|
|
adjusting on monitor panel or on TV. It changes intensity of RGB components of
|
|
video signal from black to white screen.</TD></TR>
|
|
<TR><TD></TD><TD VALIGN="top"><CODE>-contrast</CODE></TD><TD></TD>
|
|
<TD>Adjust <B>CONTRAST</B> of video output. Works in similar manner as
|
|
brightness.</TD></TR>
|
|
<TR><TD></TD><TD VALIGN="top"><CODE>-saturation</CODE></TD>
|
|
<TD></TD><TD>Adjust <B>SATURATION</B> of video output. You can get grayscale
|
|
output with this option.</TD></TR>
|
|
<TR><TD></TD><TD VALIGN="top"><CODE>-hue</CODE></TD>
|
|
<TD></TD><TD>Adjust <B>HUE</B> of video signal. You can get colored negative
|
|
of image with this option.</TD></TR>
|
|
<TR><TD></TD><TD VALIGN="top"><CODE>-red_intensity</CODE></TD>
|
|
<TD></TD><TD>Adjust intensity of <B>RED</B> component of video signal.</TD></TR>
|
|
<TR><TD></TD><TD VALIGN="top"><CODE>-green_intensity</CODE></TD>
|
|
<TD></TD><TD>Adjust intensity of <B>GREEN</B> component of video signal.</TD></TR>
|
|
<TR><TD></TD><TD VALIGN="top"><CODE>-blue_intensity</CODE></TD>
|
|
<TD></TD><TD>Adjust intensity of <B>BLUE</B> component of video signal.</TD></TR>
|
|
</TABLE>
|
|
|
|
<P>
|
|
Each parameter can accept values from <B>-1000</B> to <B>+1000</B>.<BR>
|
|
Default value for each parameter is <B>0</B>.
|
|
</P>
|
|
<P>
|
|
<B>Note:</B> Not every driver provides support for each of those parameters.
|
|
Currently only <B>radeon_vid.so</B> provides full support for video equalizing.
|
|
Other drivers only partly support these options.
|
|
</P>
|
|
<P><B>Examples:</B><BR>
|
|
<CODE>mplayer -vo vesa:vidix -brightness -300 -contrast 200
|
|
filename.avi</CODE><BR>
|
|
or<BR>
|
|
<CODE>mplayer -vo xvidix -red_intensity -50 -saturation 400 -hue 300
|
|
filename.vob</CODE>
|
|
</P>
|
|
|
|
|
|
<P><B><A NAME=2.3.1.15>2.3.1.15. Zr</A></B></P>
|
|
|
|
<P>This is a display-driver (<CODE>-vo zr</CODE>) for a number of MJPEG
|
|
capture/playback cards (tested for DC10+ and Buz, and it should work for the
|
|
LML33, the DC10). The driver works by encoding the frame to jpeg and then
|
|
sending it to the card. For the jpeg encoding <B>libavcodec</B> is
|
|
used, and required.</P>
|
|
|
|
<P>This driver talks to the kernel driver available at
|
|
<A HREF="http://mjpeg.sourceforge.net">http://mjpeg.sourceforge.net</A>, so
|
|
you must get it working first. Then recompile <B>MPlayer</B> with
|
|
<CODE>--enable-zr</CODE>.</P>
|
|
|
|
Some remarks:
|
|
<UL>
|
|
<LI>don't start or stop XawTV on the playback device during playback,
|
|
it will crash your computer. It is, however, fine to <B>FIRST</B> start
|
|
XawTV, <B>THEN</B> start <B>MPlayer</B>, wait for <B>MPlayer</B> to finish
|
|
and <B>THEN</B> stop XawTV.</LI>
|
|
<LI>this driver adds <CODE>-zr*</CODE> command line options. The explanation
|
|
of these options can be viewed with <CODE>-zrhelp</CODE>. It is possible to
|
|
crop the input frame (cut borders to make it fit or to enhance performance)
|
|
and to do other things.</LI>
|
|
<LI>the driver takes data in YV12 and YUY2 format, this means that some
|
|
codecs won't work. Some old VfW (Video for Windows) codecs, for example,
|
|
are incompatible with this driver. The error message that you will see is:
|
|
<CODE>Sorry, selected video_out device is incompatible with this codec.
|
|
</CODE></LI>
|
|
<LI>OSD is currently not supported, so you won't see
|
|
subtitles.</LI>
|
|
</UL>
|
|
|
|
|
|
<P><B><A NAME=2.3.1.16>2.3.1.16. DVB</A></B></P>
|
|
|
|
<P><B>MPlayer</B> supports cards with the Siemens DVB chipset from vendors like
|
|
Siemens, Technotrend, Galaxis or Hauppauge. The latest DVB drivers are
|
|
available from the <A HREF="http://www.linuxtv.org">Linux TV site</A>. If you
|
|
want to do software transcoding you should have at least a 1GHz CPU.</P>
|
|
|
|
<P>Configure should detect your DVB card. If it did not, force detection with
|
|
|
|
<PRE>
|
|
./configure --enable-dvb
|
|
</PRE>
|
|
|
|
<P>If you have ost headers at a non-standard path, set the path with</P>
|
|
|
|
<PRE>
|
|
./configure --with-extraincdir=<DVB source directory>/ost/include
|
|
</PRE>
|
|
|
|
<P>Then compile and install as usual.</P>
|
|
|
|
<P><B>USAGE</B></P>
|
|
|
|
<P>Hardware decoding (playing standard MPEG1/2 files) can be done with this
|
|
command:</P>
|
|
|
|
<PRE>
|
|
mplayer -ao mpegpes -vo mpegpes file.mpg|vob
|
|
</PRE>
|
|
|
|
<P>Software decoding or transcoding different formats to MPEG1 can be achieved
|
|
using a command like this:</P>
|
|
|
|
<PRE>
|
|
mplayer -ao mpegpes -vo mpegpes -vop lavc yourfile.ext
|
|
mplayer -ao mpegpes -vo mpegpes -vop fame,expand yourfile.ext
|
|
</PRE>
|
|
|
|
<P>Note that DVB cards only support heights 288 and 576 for PAL or 240 and 480
|
|
for NTSC. You <B>must</B> rescale for other heights by adding
|
|
<CODE>scale=width:height</CODE> with the width and height you want to the
|
|
<CODE>-vop</CODE> option. DVB cards accept various widths, like 720, 704, 640,
|
|
512, 480, 352 etc and do hardware scaling in horizontal direction, so you do not
|
|
need to scale horizontally in most cases. For a 512x384 (aspect 4:3) DivX try:</P>
|
|
|
|
<PRE>
|
|
mplayer -ao mpegpes -vo mpegpes -vop lavc,scale=512:576
|
|
</PRE>
|
|
|
|
<P>If you have a widescreen movie and you do not want to scale it to full height,
|
|
you can use the <CODE>expand=w:h</CODE> plugin to add black bands. To view a
|
|
640x384 DivX, try:</P>
|
|
|
|
<PRE>
|
|
mplayer -ao mpegpes -vo mpegpes -vop lavc,expand=640:576 file.avi
|
|
</PRE>
|
|
|
|
<P>If your CPU is too slow for a full size 720x576 DivX, try downscaling:</P>
|
|
|
|
<PRE>
|
|
mplayer -ao mpegpes -vo mpegpes -vop lavc,scale=352:576 file.avi
|
|
</PRE>
|
|
|
|
<P>If speed does not improve, try vertical downscaling, too:</P>
|
|
|
|
<PRE>
|
|
mplayer -ao mpegpes -vo mpegpes -vop lavc,scale=352:288 file.avi
|
|
</PRE>
|
|
|
|
<P>For OSD and subtitles use the expand feature of the OSD plugin. So, instead
|
|
of <CODE>expand=w:h</CODE> or <CODE>expand=w:h:x:y</CODE>, use
|
|
<CODE>expand=w:h:x:y:1</CODE> (the 5th parameter <CODE>:1</CODE> at the end
|
|
will enable OSD rendering). You may want to move the image up a bit to get a
|
|
bigger black zone for subtitles. You may also want to move subtitles up, if they
|
|
are outside your TV screen, use the <CODE>-subpos <0-100></CODE> switch to
|
|
adjust this (<CODE>-subpos 80</CODE> is a good choice).</P>
|
|
|
|
<P>In order to play non-25fps movies on a PAL TV or with a slow CPU, add the
|
|
<CODE>-framedrop</CODE> option.</P>
|
|
|
|
<P>To keep the aspect ratio of DivX files and get the optimal scaling parameters
|
|
(hardware horizontal scaling and software vertical scaling while keeping the
|
|
right aspect ratio), use the new dvbscale plugin:</P>
|
|
|
|
<PRE>
|
|
for 3:4 TV: -vop lavc,expand=-1:576:-1:-1:1,scale=-1:0,dvbscale
|
|
for 16:9 TV: -vop lavc,expand=-1:576:-1:-1:1,scale=-1:0,dvbscale=1024
|
|
</PRE>
|
|
|
|
<P><B>FUTURE</B></P>
|
|
|
|
<P>If you have questions or want to hear feature announcements and take part in
|
|
discussions on this subject, join our
|
|
<A HREF="http://mplayerhq.hu/mailman/listinfo/mplayer-dvb">MPlayer-DVB</A>
|
|
mailing list. Please remember that the list language is English.</P>
|
|
|
|
<P>In the future you may expect the ability to display OSD and subtitles using
|
|
the native OSD feature of DVB cards, as well as more fluent playback of
|
|
non-25fps movies and realtime transcoding between MPEG2 and MPEG4 (partial
|
|
decompression).</P>
|
|
|
|
|
|
<P><B><A NAME=2.3.1.17>2.3.1.17. DXR3</A></B></P>
|
|
|
|
<P><B>MPlayer</B> supports hardware accelerated playback with the Creative DXR3
|
|
and Sigma Designs Hollywood Plus cards.</P>
|
|
|
|
<P>First of all you will need properly installed DXR3/H+ drivers, version 0.12.0
|
|
or later. You can find the drivers and installation instructions at the
|
|
<A HREF="http://dxr3.sourceforge.net/">DXR3 & Hollywood Plus for Linux</A>
|
|
site. Configure should detect your card automatically, compilation should go
|
|
without any problems.</P>
|
|
|
|
<P><B>USAGE</B></P>
|
|
|
|
<TABLE>
|
|
<TR><TD> </TD><TD VALIGN="top"><CODE>-vo dxr3:<noprebuf>:<codec>:<device></CODE></TD><TD> </TD>
|
|
<TD>Where <CODE><noprebuf></CODE> specifies turning off prebuffering.
|
|
This is done automatically on Athlons. If playback is out of sync try
|
|
disabling prebuffering. If noprebuf is left out prebuffering is enabled
|
|
(except on Athlons).
|
|
<BR>
|
|
<CODE><codec></CODE> = fame/avcodec, avcodec produces better quality
|
|
output, but fame is faster for those of you with slow machines. The default is
|
|
to use libavcodec. Note that you need libavcodec properly installed (read
|
|
DOCS/codecs.html).
|
|
<BR>
|
|
<CODE><device></CODE> = device number to use if you have more than one
|
|
em8300 card.
|
|
<BR>
|
|
Any of these options may be left out, but they must be specified in this
|
|
order, i.e. <CODE>dxr3:fame</CODE> works, <CODE>dxr3:1</CODE> works, but
|
|
<CODE>dxr3:1:avcodec</CODE> will not.</TD></TR>
|
|
<TR><TD></TD><TD VALIGN="top"><CODE>-ao oss:/dev/em8300_ma-X</CODE></TD>
|
|
<TD></TD><TD>For audio output, where <CODE>X</CODE> is the device number
|
|
(0 if one card).</TD></TR>
|
|
<TR><TD></TD><TD VALIGN="top"><CODE>-ac hwac3</CODE></TD>
|
|
<TD></TD><TD>For digital instead of analog audio output.</TD></TR>
|
|
<TR><TD></TD><TD VALIGN="top"><CODE>-vc mpegpes</CODE></TD>
|
|
<TD></TD><TD>Force hardware acceleration, only works with MPEG1/2.</TD></TR>
|
|
<TR><TD></TD><TD VALIGN="top"><CODE>-aop list=resample:fout=xxxxx</CODE></TD>
|
|
<TD></TD><TD>If sample rate is below 44100Hz, select either 44100Hz or 48000Hz
|
|
depending on which one matches closest. I.e. if the movie uses 22050Hz use
|
|
44100Hz as 44100 / 2 = 22050, if it is 24000Hz use 48000Hz as 48000 / 2 = 24000
|
|
and so on. This does not work with digital audio output
|
|
(<CODE>-ac hwac3</CODE>).</TD></TR>
|
|
</TABLE>
|
|
|
|
<P><B>Overlay</B><P>
|
|
|
|
<P>To get overlay run dxr3view that comes with the em8300 package before
|
|
starting <B>MPlayer</B>. You can set various options in dxr3view by pressing
|
|
<CODE>T</CODE> while holding the mouse cursor above the window.</P>
|
|
|
|
<P><B>MPEG1, MPEG2, VCD and DVD Notes</B></P>
|
|
|
|
<P>MPEG1/2 content should now automatically be detected by <B>MPlayer</B> and it
|
|
will use the hardware acceleration of the DXR3 to play it. If not, you can force
|
|
it to hardware acceleration with <CODE>-vc mpegpes</CODE>. Also, if you plan to
|
|
use any postprocessing filters you must use <CODE>-vc mpeg12</CODE>.</P>
|
|
|
|
<P>In some instances, subtitles may not appear properly in sync with the A/V stream
|
|
when using hardware decoding (<CODE>-vc mpegpes</CODE>). This is a known bug. The
|
|
em8300 will also improperly handle subtitles that are too big, and may hang for
|
|
a second or two. At this time, the only workaround is to use
|
|
<CODE>-vc mpeg12</CODE> when viewing DVDs with subtitles.<P>
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<P><B><A NAME=2.3.1.A>2.3.1.A. TV-out support</A></B></P>
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<P><B><A NAME=2.3.1.A.1>2.3.1.A.1. Matrox G400 cards</A></B></P>
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<P>Under Linux you have 2 methods to get G400 TV out working :</P>
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<P><B>IMPORTANT:</B> Only Matrox G400DH/G400MAX has TV-out support under Linux, others (G450, G550) has <B>NOT!</B></P>
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<UL>
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<LI><B>XFree86</B>: using the driver and the HAL module, available from
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<A HREF="http://www.matrox.com">Matrox's site</A>. This will give you X on
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the TV.<BR> <B>This method doesn't give you accelerated playback</B> as
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under Windoze! The second head has only YUV framebuffer, the <I>BES</I>
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(Back End Scaler, the YUV scaler on G200/G400/G450/G550 cards) doesn't work
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on it! The windows driver somehow workarounds this, probably by using the
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3D engine to zoom, and the YUV framebuffer to display the zoomed
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image. If you really want to use X, use the <CODE>-vo x11 -fs -zoom</CODE>
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options, but it will be <B>SLOW</B>, and has <B>Macrovision</B> copy protection
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enabled (you can "workaround" Macrovision using
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<A HREF="http://avifile.sourceforge.net/mgamacro.pl">this</A> perl
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script.</LI>
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<LI><B>Framebuffer</B>: using the <B>matroxfb modules</B> in the 2.4 kernels.
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2.2 kernels don't have the TVout feature in them, thus unusable for this.
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You have to enable ALL matroxfb-specific feature during compilation (except
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MultiHead), and compile them into <B>modules</B>! You'll also need I2C
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enabled.
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<UL>
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<LI>
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Enter <CODE>TVout/matroxset</CODE> and type <CODE>make</CODE>. Install
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<CODE>matroxset</CODE> into somewhere in your PATH.</LI>
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<LI>
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If you don't have <CODE>fbset</CODE> installed, enter
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<CODE>TVout/fbset</CODE> and type <CODE>make</CODE>. Install
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<CODE>fbset</CODE> into somewhere in your PATH.</LI>
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<LI>
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Then enter into the <CODE>TVout/</CODE> directory in the <B>MPlayer</B>
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source, and execute <CODE>./modules</CODE> as root. Your text-mode console
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will enter into framebuffer mode (no way back!).</LI>
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<LI>Next, run the <CODE>./matroxtv</CODE> script. This will present you
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to a very simple menu. Press <B>2</B> and <B>ENTER</B>. Now you should
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have the same picture on your monitor, and TV. The <B>3.</B> option
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will turn on independent display, but then you <B>can't use X</B>! If
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the TV (PAL !) picture has some weird stripes on it, the script wasn't able to
|
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set the resolution correctly (to 640x512 by default). Use other menu
|
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items randomly and it'll be OK :)</LI>
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</UL>
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<P>
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Yoh. Next task is to make the cursor on tty1 (or whatever) to disappear,
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|
and turn off screen blanking. Execute the following commands:</P>
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<P>
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<CODE>echo -e '\033[?25l'</CODE> or <CODE>setterm -cursor off<BR>
|
|
setterm -blank 0</CODE>
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|
</P>
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<P>
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You possibly want to put the above into a script, and also clear
|
|
the screen.. To turn the cursor back :<BR><CODE>echo -e '\033[?25h'</CODE>
|
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or <CODE>setterm -cursor on</CODE>
|
|
</P>
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<P>Yeah kewl. Start movie playing with <CODE>mplayer -vo mga -fs -screenw 640
|
|
-screenh 512 <filename></CODE><BR>
|
|
(if you use X, now change to matroxfb with for example CTRL-ALT-F1 !)<BR>
|
|
Change 640x512 if you set the resolution to other..<BR>
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<B>Enjoy the ultra-fast ultra-featured Matrox TV output (better than Xv) !</B>
|
|
</P>
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|
</LI>
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|
</UL>
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<P><B><A NAME=2.3.1.A.2>2.3.1.A.2. ATI cards</A></B></P>
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<P>
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<B><U>PREAMBLE</U></B><BR>
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Currently ATI doesn't want to support any of its TV-out chips under Linux,
|
|
because of their licensed Macrovision technology.</P>
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|
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<P><B><U>ATI CARDS TV-OUT STATUS ON LINUX</U></B></P>
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|
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<UL>
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<LI><B>ATI Mach64</B>: supported by <A HREF="http://gatos.sf.net">gatos</A>.</LI>
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|
<LI><B>ASIC Radeon VIVO</B>: supported by <A HREF="http://gatos.sf.net">gatos</A>.</LI>
|
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<LI><B>Radeon</B> and <B>Rage128</B>: supported by <B>MPlayer</B>!
|
|
Check <a href="#2.3.1.12">VESA driver</a> and <A HREF="#2.3.1.15">Vidix</A>
|
|
sections.</LI>
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|
</UL>
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|
<P>
|
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On other cards, just use the <a href="#2.3.1.12">VESA driver</a>, without
|
|
Vidix. Powerful CPU is needed, though.
|
|
</P>
|
|
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|
<P>Only thing you need to do - <B>have TV connector plugged in before
|
|
booting your PC</B> since video BIOS initializes itself only once during
|
|
POST procedure.
|
|
</P>
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<P><B><A NAME=2.3.1.A.3>2.3.1.A.3. Voodoo 3</A></B></P>
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|
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<P>
|
|
Check <A HREF="http://www.iki.fi/too/tvout-voodoo3-3000-xfree">this URL</A>.
|
|
</P>
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