mirror of
https://github.com/mpv-player/mpv
synced 2024-12-12 09:56:30 +00:00
c9e9af7120
codecs.html and new whole translated file: DVB. The rest of the files are newest english versions. I think that it's better to have them updated than wait for my translations..." git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@3880 b3059339-0415-0410-9bf9-f77b7e298cf2
1021 lines
50 KiB
HTML
1021 lines
50 KiB
HTML
<HTML>
|
|
<BODY BGCOLOR=white>
|
|
|
|
<FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>
|
|
|
|
<P><B><A NAME=2.3.1>2.3.1. Video output devices</A></B></P>
|
|
|
|
<TABLE BORDER=0>
|
|
|
|
<TD COLSPAN=4><P><B><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>General:</B></P></TD><TR>
|
|
|
|
<TD> </TD><TD VALIGN=top><FONT face="Verdana, Arial, Helvetica,
|
|
sans-serif" size=2><A HREF=#2.3.1.13>x11</A></TD><TD> </TD><TD><FONT
|
|
face="Verdana, Arial, Helvetica, sans-serif" size=2>X11 with optional SHM
|
|
extension</TD><TR>
|
|
<TD></TD><TD VALIGN=top><FONT face="Verdana, Arial, Helvetica, sans-serif"
|
|
size=2><A HREF=#2.3.1.2>xv</A></TD><TD></TD><TD><FONT face="Verdana, Arial,
|
|
Helvetica, sans-serif" size=2>X11 using overlays with the Xvideo extension
|
|
(hardware YUV & scaling)</TD><TR>
|
|
<TD></TD><TD VALIGN=top><FONT face="Verdana, Arial, Helvetica, sans-serif"
|
|
size=2><A HREF=#2.3.1.10>gl</A></TD><TD></TD><TD><FONT face="Verdana, Arial,
|
|
Helvetica, sans-serif" size=2>OpenGL renderer, so far works only with:
|
|
<UL><LI>all cards with Utah-GLX
|
|
<LI>Matrox cards with X/DRI >=4.0.3
|
|
<LI>Radeon with X/DRI CVS</UL></TD><TR>
|
|
<TD></TD><TD VALIGN=top><FONT face="Verdana, Arial, Helvetica, sans-serif"
|
|
size=2><A HREF=#2.3.1.10>gl2</A></TD><TD></TD><TD><FONT face="Verdana, Arial,
|
|
Helvetica, sans-serif" size=2>OpenGL renderer, multiple textures version</TD><TR>
|
|
<TD></TD><TD VALIGN=top><FONT face="Verdana, Arial, Helvetica, sans-serif"
|
|
size=2><A HREF=#2.3.1.3>dga</A></TD><TD></TD><TD><FONT face="Verdana, Arial,
|
|
Helvetica, sans-serif" size=2>X11 DGA extension</TD><TR>
|
|
<TD></TD><TD VALIGN=top><FONT face="Verdana, Arial, Helvetica, sans-serif"
|
|
size=2><A HREF=#2.3.1.6>fbdev</A></TD><TD></TD><TD><FONT face="Verdana, Arial,
|
|
Helvetica, sans-serif" size=2>Output to general framebuffers</TD><TR>
|
|
<TD></TD><TD VALIGN=top><FONT face="Verdana, Arial, Helvetica, sans-serif"
|
|
size=2><A HREF=#2.3.1.5>svga</A></TD><TD></TD><TD><FONT face="Verdana, Arial,
|
|
Helvetica, sans-serif" size=2>Output to SVGAlib</TD><TR>
|
|
<TD></TD><TD VALIGN=top><FONT face="Verdana, Arial, Helvetica, sans-serif"
|
|
size=2><A HREF=#2.3.1.4>sdl</A></TD><TD></TD><TD><FONT face="Verdana, Arial,
|
|
Helvetica, sans-serif" size=2>
|
|
<CODE>1.1.7:</CODE> supports software scaling<BR>
|
|
<CODE>1.1.8:</CODE> supports Xvideo (hardware scaling/fullscreen)<BR>
|
|
<CODE>1.2.0:</CODE> supports AAlib (-vo aa is very recommended, see below!)</TD><TR>
|
|
<TD></TD><TD VALIGN=top><FONT face="Verdana, Arial, Helvetica, sans-serif"
|
|
size=2><A HREF=#2.3.1.14-TODO>ggi</A></TD><TD></TD><TD><FONT face="Verdana,
|
|
Arial, Helvetica, sans-serif" size=2>similar to SDL</TD><TR>
|
|
<TD></TD><TD VALIGN=top><FONT face="Verdana, Arial, Helvetica, sans-serif"
|
|
size=2><A HREF=#2.3.1.11>aa</A></TD><TD></TD><TD><FONT face="Verdana, Arial,
|
|
Helvetica, sans-serif" size=2>textmode rendering with AAlib</TD><TR>
|
|
<TD></TD><TD VALIGN=top><FONT face="Verdana, Arial, Helvetica, sans-serif"
|
|
size=2><a href=#2.3.1.12>vesa</a></TD><TD></TD><TD><FONT face="Verdana, Arial,
|
|
Helvetica, sans-serif" size=2>Output to VESA BIOS.</TD><TR>
|
|
<TD></TD><TD VALIGN=top><FONT face="Verdana, Arial, Helvetica, sans-serif"
|
|
size=2>directfb</TD><TD></TD><TD><FONT face="Verdana, Arial,
|
|
Helvetica, sans-serif" size=2>Direct Framebuffer Device</TD><TR>
|
|
|
|
<TD COLSPAN=4><P><B><FONT face="Verdana, Arial, Helvetica, sans-serif"
|
|
size=2>Card specific:</B></P></TD><TR>
|
|
|
|
<TD> </TD><TD VALIGN=top><FONT face="Verdana, Arial, Helvetica,
|
|
sans-serif" size=2><A HREF=#2.3.1.7>mga</A></TD><TD> </TD><TD><FONT
|
|
face="Verdana, Arial, Helvetica, sans-serif" size=2>Matrox G200/G400 hardware
|
|
YUV overlay via the mga_vid device</TD><TR>
|
|
<TD></TD><TD VALIGN=top><FONT face="Verdana, Arial, Helvetica, sans-serif"
|
|
size=2><A HREF=#2.3.1.7>xmga</A></TD><TD></TD><TD><FONT face="Verdana, Arial,
|
|
Helvetica, sans-serif" size=2>Matrox G200/G400 overlay (mga_vid) in X11
|
|
window<BR>
|
|
(<I>Xv emulation on X 3.3.x!</I>)</TD><TR>
|
|
<TD></TD><TD VALIGN=top><FONT face="Verdana, Arial, Helvetica, sans-serif"
|
|
size=2>syncfb</TD><TD></TD><TD><FONT face="Verdana, Arial, Helvetica,
|
|
sans-serif" size=2>Matrox G400 YUV support on framebuffer (obsoleted, use
|
|
mga/xmga)</TD><TR>
|
|
<TD></TD><TD VALIGN=top><FONT face="Verdana, Arial, Helvetica, sans-serif"
|
|
size=2>3dfx</TD><TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif"
|
|
size=2>Voodoo3/Banshee hardware YUV (/dev/3dfx) support (not yet tested, maybe
|
|
broken)</TD><TR>
|
|
<TD></TD><TD VALIGN=top><FONT face="Verdana, Arial, Helvetica, sans-serif"
|
|
size=2><A HREF=#2.3.1.9>tdfxfb</A></TD><TD></TD><TD><FONT face="Verdana, Arial,
|
|
Helvetica, sans-serif" size=2>Voodoo3/Banshee hardware YUV support on tdfx
|
|
framebuffer (works!)</TD><TR>
|
|
|
|
<TD COLSPAN=4><P><B><FONT face="Verdana, Arial, Helvetica, sans-serif"
|
|
size=2>Special:</B></P></TD><TR>
|
|
|
|
<TD> </TD><TD VALIGN=top><FONT face="Verdana, Arial, Helvetica,
|
|
sans-serif" size=2>png</TD><TD> </TD><TD><FONT face="Verdana, Arial,
|
|
Helvetica, sans-serif" size=2>PNG files output (use -z switch to set
|
|
compression)</TD><TR>
|
|
<TD></TD><TD VALIGN=top><FONT face="Verdana, Arial, Helvetica, sans-serif"
|
|
size=2>pgm</TD><TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif"
|
|
size=2>PGM files output (for testing purposes or ffmpeg encoding)</TD><TR>
|
|
<TD></TD><TD VALIGN=top><FONT face="Verdana, Arial, Helvetica, sans-serif"
|
|
size=2>md5</TD><TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif"
|
|
size=2>MD5sum output (for MPEG conformance tests)</TD><TR>
|
|
<TD></TD><TD VALIGN=top><FONT face="Verdana, Arial, Helvetica, sans-serif"
|
|
size=2>null</TD><TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif"
|
|
size=2>Null output (for speed tests/benchmarking)</TD><TR>
|
|
</TABLE>
|
|
|
|
<P>NOTE: <I>check the following subsections for details and requirements!</I></P>
|
|
|
|
|
|
<P><B><A NAME=2.3.1.1>2.3.1.1. Setting up MTRR</A></B></P>
|
|
|
|
<P>It is VERY recommended to check if the MTRR registers are set up properly,
|
|
because they can give a big performance boost.</P>
|
|
|
|
<P>Do a '<CODE>cat /proc/mtrr</CODE>' :</P>
|
|
|
|
<P><CODE>
|
|
--($:~)-- cat /proc/mtrr<BR>
|
|
reg00: base=0xe4000000 (3648MB), size= 16MB: write-combining, count=9<BR>
|
|
reg01: base=0xd8000000 (3456MB), size= 128MB: write-combining, count=1<BR>
|
|
</CODE></P>
|
|
|
|
<P>It's right, shows my Matrox G400 with 16Mb memory. I did this from
|
|
XFree 4.x.x , which sets up MTRR registers automatically.</P>
|
|
|
|
<P>If nothing worked, you have to do it manually. First, you have to find the base
|
|
address.
|
|
You have 3 ways to find it:</P>
|
|
|
|
<P><UL>
|
|
<LI>from X11 startup messages, for example:
|
|
<P><CODE>(--) SVGA: PCI: Matrox MGA G400 AGP rev 4, Memory @ 0xd8000000, 0xd4000000<BR>
|
|
(--) SVGA: Linear framebuffer at 0xD8000000</CODE></P></LI>
|
|
<LI>from /proc/pci (use lspci -v command):
|
|
<P>
|
|
<CODE>01:00.0 VGA compatible controller: Matrox Graphics, Inc.: Unknown device 0525</CODE>
|
|
<CODE>Memory at d8000000 (32-bit, prefetchable)</CODE>
|
|
</P>
|
|
<LI>from mga_vid kernel driver messages (use dmesg):
|
|
<P><CODE>mga_mem_base = d8000000</CODE></P>
|
|
</UL></P>
|
|
|
|
<P>Then let's find the memory size. This is very easy, just convert video ram
|
|
size to hexadecimal, or use this table:</P>
|
|
|
|
<TABLE BORDER=0>
|
|
<TD> </TD><TD>1 MB</TD><TD WIDTH=10%></TD><TD>0x100000</TD><TR>
|
|
<TD></TD><TD>2 MB</TD><TD></TD><TD>0x200000</TD><TR>
|
|
<TD></TD><TD>4 MB</TD><TD></TD><TD>0x400000</TD><TR>
|
|
<TD></TD><TD>8 MB</TD><TD></TD><TD>0x800000</TD><TR>
|
|
<TD></TD><TD>16 MB</TD><TD></TD><TD>0x1000000</TD><TR>
|
|
<TD></TD><TD>32 MB</TD><TD></TD><TD>0x2000000</TD><TR>
|
|
</TABLE>
|
|
|
|
|
|
<P>You know base address and memory size, let's setup mtrr registers!
|
|
For example, for the Matrox card above (base=0xd8000000) with 32MB
|
|
ram (size=0x2000000) just execute:</P>
|
|
|
|
|
|
<P><CODE> echo "base=0xd8000000 size=0x2000000 type=write-combining" >| /proc/mtrr</CODE></P>
|
|
|
|
|
|
<P>Not all CPUs support MTRRs. For example older K6-2's [around 266Mhz,
|
|
stepping 0] doesn't support MTRR, but stepping 12's do ('<CODE>cat /proc/cpuinfo</CODE>'
|
|
to check it').</P>
|
|
|
|
<P><B><A NAME=2.3.1.2>2.3.1.2. Xv</A></B></P>
|
|
|
|
<P>Under XFree86 4.0.2 or newer, you can use your card's hardware YUV routines
|
|
using the XVideo extension. This is what the option '-vo xv' uses.
|
|
In order to make this work, be sure to check the following:</P>
|
|
<P><UL>
|
|
<LI>You have to use XFree86 4.0.2 or newer (former versions don't have XVideo)
|
|
<LI>Your card actually supports hardware acceleration (modern cards do)
|
|
<LI>X loads the XVideo extension, it's something like this:
|
|
|
|
<P><CODE> (II) Loading extension XVideo</CODE></P>
|
|
<P>in /var/log/XFree86.0.log</P>
|
|
|
|
<P>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!</P>
|
|
|
|
<LI>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:
|
|
<PRE>
|
|
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...)
|
|
</PRE>
|
|
|
|
<P>It must support YUY2 packed, and YV12 planar pixel formats to be
|
|
usable with <B>MPlayer</B>.</P>
|
|
|
|
<LI>And finally, check if <B>MPlayer</B> was compiled with 'xv' support.
|
|
./configure prints this.
|
|
|
|
</UL></P>
|
|
|
|
<P><B><A NAME=2.3.1.2.1>2.3.1.2.1. 3dfx cards</A></B></P>
|
|
|
|
<P>Older 3dfx drivers were known to have problems with XVideo acceleration,
|
|
it didn't support either YUY2 or YV12, and so. Verify that you have
|
|
XFree86 version 4.1.0 or greater, it works ok. Alternatively, you can use
|
|
<A HREF="http://dri.sourceforge.net">DRI</A> cvs.
|
|
If you experience strange effects using -vo xv, try SDL (it has XVideo too)
|
|
and see if it helps. Check the <A HREF="#2.3.1.4">SDL section</A> for details.</P>
|
|
|
|
<P><B>OR</B>, try the NEW -vo tdfxfb driver! See the <A HREF=#2.3.1.9>2.3.1.9</A>
|
|
section!</P>
|
|
|
|
|
|
<P><B><A NAME=2.3.1.2.2>2.3.1.2.2. S3 cards</A></B></P>
|
|
|
|
<P>S3 Savage3D's should work fine, but for Savage4, use XFree86 version 4.0.3
|
|
or greater (in case of image problems, try 16bpp). As for S3 Virge.. sell it.</P>
|
|
|
|
<P><B>NOTE</B>: Savage cards have a slow YV12 image displaying capability (it needs
|
|
to do YV12->YUY2 conversion, because the Savage hardware can't display YV12).
|
|
So when this documentation says at some point "this has YV12 output use this,
|
|
it's faster", it's not sure. Try.</P>
|
|
|
|
|
|
<P><B><A NAME=2.3.1.2.3>2.3.1.2.3. nVidia cards</A></B></P>
|
|
|
|
<P>nVidia isn't a very good choice under Linux.. You'll have to use the
|
|
binary closed-source nVidia driver, available at nVidia's website. The standard XFree86
|
|
driver doesn't support XVideo for these cards, due to nVidia's closed
|
|
sources/specifications.</P>
|
|
|
|
<P>As far as I know the latest XFree86 driver contains XVideo support for
|
|
Geforce 2 and 3.</P>
|
|
|
|
<P><UL><LI>Riva128 cards don't have XVideo support even with the nvidia driver :(
|
|
Complain to NVidia.</UL></P>
|
|
|
|
|
|
<P><B><A NAME=2.3.1.2.4>2.3.1.2.4. ATI cards</A></B></P>
|
|
|
|
<P>
|
|
<LI>The GATOS driver (which you should use) 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.</LI>
|
|
|
|
<LI>Radeon VE - currently only XFree86 CVS has driver for this card, version
|
|
4.1.0 doesn't. And no TV out support. Of course with <B>MPlayer</B> you can
|
|
happily get <B>accelerated</B> display, with or without <B>TV output</B>, and
|
|
no libraries or X are needed. Read <a href=#2.3.1.12>VESA driver</a> and <A
|
|
HREF=#2.3.1.14>Radeon video overlay</A> sections).</LI> </P>
|
|
|
|
|
|
<P><B><A NAME=2.3.1.2.5>2.3.1.2.5. NeoMagic cards</A></B></P>
|
|
|
|
<P>
|
|
These cards can be found in many laptops. Under Linux, their peak is only DGA.
|
|
Unfortunately, the DGA driver in X 4.1.0 doesn't work, you'll have to wait for
|
|
4.2.0, or download a modified driver for 4.0.3 or 4.1.0 from here :
|
|
<A HREF="http://www.mplayerhq.hu/MPlayer/contrib/NeoMagic-driver">http://www.mplayerhq.hu/MPlayer/contrib/NeoMagic-driver</A>
|
|
(there is also the patch to the driver's source).<BR>
|
|
Drivers provided by <A HREF="mailto:tomee@cpi.pl">Tomek Jarzynka</A>.
|
|
</P>
|
|
|
|
<P><B><A NAME=2.3.1.2.6>2.3.1.2.6. Trident cards</A></B></P>
|
|
|
|
<P>If you want to use xv with a trident card, provided that it doesn't
|
|
work with 4.1.0, try the latest cvs of Xfree or wait for Xfree 4.2.0.
|
|
The latest cvs adds support for fullscreen xv support with the
|
|
Cyberblade XP card.</P>
|
|
|
|
<P><B><A NAME=2.3.1.3>2.3.1.3. DGA</A></B></P>
|
|
|
|
<P><B><A NAME=2.3.1.3.1>2.3.1.3.1. Summary</A></B></P>
|
|
|
|
<P>This document tries to explain in some words what DGA is in general and
|
|
what the DGA video output driver for mplayer can do (and what it can't).</P>
|
|
|
|
|
|
<P><B><A NAME=2.3.1.3.2>2.3.1.3.2. What is DGA</A></B></P>
|
|
|
|
<P>DGA is short for Direct Graphics Access and is a means for a program to
|
|
bypass the X-Server and directly modifying the framebuffer memory.
|
|
Technically spoken this happens by mapping the framebuffer memory into
|
|
the memory range of your process. This is allowed by the kernel only
|
|
if you have superuser privileges. You can get these either by logging in
|
|
as root or by setting the suid bit on the mplayer excecutable (NOT
|
|
recommended!).</P>
|
|
|
|
<P>There are two versions of DGA: DGA1 is used by XFree 3.x.x and DGA2 was
|
|
introduced with XFree 4.0.1.</P>
|
|
|
|
<P>DGA1 provides only direct framebuffer access as described above. For
|
|
switching the resolution of the video signal you have to rely on the
|
|
XVidMode extension.</P>
|
|
|
|
<P>DGA2 incorporates the features of XVidMode extension and also allows
|
|
switching the depth of the display. So you may, although basically
|
|
running a 32 bit depth XServer, switch to a depth of 15 bits and vice
|
|
versa. </P>
|
|
|
|
<P>However DGA has some drawbacks. It seems it is somewhat dependent on the
|
|
graphics chip you use and on the implementation of the XServer's video
|
|
driver that controls this chip. So it does not work on every system ...</P>
|
|
|
|
|
|
<P><B><A NAME=2.3.1.3.3>2.3.1.3.3. Installing DGA support for MPlayer</A></B></P>
|
|
|
|
<P>First make sure X loads the DGA extension, see in /var/log/XFree86.0.log:</P>
|
|
|
|
<P> <CODE>(II) Loading extension XFree86-DGA</CODE></P>
|
|
|
|
<P>See, XFree86 4.0.x or greater is VERY RECOMMENDED!
|
|
<B>MPlayer</B>'s DGA driver is autodetected on ./configure, or you can force it
|
|
with --enable-dga.</P>
|
|
|
|
<P>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.. :(</P>
|
|
|
|
<P>Become ROOT. DGA needs root access to be able to write directly video memory.
|
|
If you want to run it as user, then install <B>MPlayer</B> SUID root:</P>
|
|
|
|
<P><CODE>
|
|
chown root /usr/local/bin/mplayer<BR>
|
|
chmod 750 /usr/local/bin/mplayer<BR>
|
|
chmod +s /usr/local/bin/mplayer</CODE></P>
|
|
|
|
|
|
<P>Now it works as a simple user, too.</P>
|
|
|
|
|
|
<P><B>!!!! BUT STAY TUNED !!!!</B><BR>
|
|
This is a <B>BIG</B> 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.<BR>
|
|
<B>!!!! SO YOU HAVE BEEN WARNED ... !!!!</B></P>
|
|
|
|
<P>Now use '-vo dga' option, and there you go! (hope so:)
|
|
You should also try if the '-vo sdl:dga' option works for you! It's much
|
|
faster!!!</P>
|
|
|
|
<P><B><A NAME=2.3.1.3.4>2.3.1.3.4. Resolution switching</A></B></P>
|
|
|
|
<P>The DGA driver allows for switching the resolution of the output signal.
|
|
This avoids the need for doing (slow) software scaling and at the same
|
|
time provides a fullscreen image. Ideally it would switch to the exact
|
|
resolution (except for honouring aspect ratio) of the video data, but the
|
|
XServer only allows switching to resolutions predefined in
|
|
<CODE>/etc/X11/XF86Config</CODE> (<CODE>/etc/X11/XF86Config-4</CODE> for XFree 4.0.X respectively).
|
|
Those are defined by so-called modelines and depend on the capabilites
|
|
of your video hardware. The XServer scans this config file on startup and
|
|
disables the modelines not suitable for your hardware. You can find
|
|
out which modes survive with the X11 log file. It can be found at:
|
|
<CODE>/var/log/XFree86.0.log</CODE>.</P>
|
|
<P>See appendix A for some sample modeline definitions.</P>
|
|
|
|
<P><B><A NAME=2.3.1.3.5>2.3.1.3.5. DGA & MPlayer</A></B></P>
|
|
|
|
<P>DGA is used in two places with <B>MPlayer</B>: The SDL driver can be made to make
|
|
use of it (-vo sdl:dga) and within the DGA driver (-vo dga).
|
|
The above said is true for both; in the following sections I'll explain
|
|
how the DGA driver for <B>MPlayer</B> works.</P>
|
|
|
|
<P><B><A NAME=2.3.1.3.6>2.3.1.3.6. Features of the DGA driver</A></B></P>
|
|
|
|
<P>The DGA driver is invoked by specifying -vo dga at the command line.
|
|
The default behaviour is to switch to a resolution matching the original
|
|
resolution of the video as close as possible. It deliberately ignores the
|
|
-vm and -fs switches (enabling of video mode switching and fullscreen) -
|
|
it always tries to cover as much area of your screen as possible by switching
|
|
the video mode, thus refraining to use a single additional cycle of your CPU
|
|
to scale the image.
|
|
If you don't like the mode it chooses you may force it to choose the mode
|
|
matching closest the resolution you specify by -x and -y.
|
|
By providing the -v option, the DGA driver will print, among a lot of other
|
|
things, a list of all resolutions supported by your current XF86-Config
|
|
file.
|
|
Having DGA2 you may also force it to use a certain depth by using the -bpp
|
|
option. Valid depths are 15, 16, 24 and 32. It depends on your hardware
|
|
whether these depths are natively supported or if a (possibly slow)
|
|
conversion has to be done.</P>
|
|
|
|
<P>If you should be lucky enough to have enough offscreen memory left to
|
|
put a whole image there, the DGA driver will use doublebuffering, which
|
|
results in much smoother movie replaying. It will tell you whether double-
|
|
buffering is enabled or not.</P>
|
|
|
|
<P>Doublebuffering means that the next frame of your video is being drawn in
|
|
some offscreen memory while the current frame is being displayed. When the
|
|
next frame is ready, the graphics chip is just told the location in memory
|
|
of the new frame and simply fetches the data to be displayed from there.
|
|
In the meantime the other buffer in memory will be filled again with new
|
|
video data.</P>
|
|
|
|
Doublebuffering may be switched on by using the option -double and may be
|
|
disabled with -nodouble. Current default option is to disable
|
|
doublebuffering. When using the DGA driver, onscreen display (OSD) only
|
|
works with doublebuffering enabled. However, enabling doublebuffering may
|
|
result in a big speed penalty (on my K6-II+ 525 it used an additional 20% of
|
|
CPU time!) depending on the implementation of DGA for your hardware.</P>
|
|
|
|
|
|
<P><B><A NAME=2.3.1.3.7>2.3.1.3.7. Speed issues</A></B></P>
|
|
|
|
<P>Generally spoken, DGA framebuffer access should be at least as fast as using
|
|
the X11 driver with the additional benefit of getting a fullscreen image.
|
|
The percentage speed values printed by mplayer have to be interpreted with
|
|
some care, as for example, with the X11 driver they do not include the time
|
|
used by the X-Server needed for the actual drawing. Hook a terminal to a
|
|
serial line of your box and start top to see what is really going on in your
|
|
box ...</P>
|
|
|
|
<P>Generally spoken, the speedup done by using DGA against 'normal' use of X11
|
|
highly depends on your graphics card and how well the X-Server module for it
|
|
is optimized.</P>
|
|
|
|
<P>If you have a slow system, better use 15 or 16bit depth since they require
|
|
only half the memory bandwidth of a 32 bit display.</P>
|
|
|
|
<P>Using a depth of 24bit is even a good idea if your card natively just supports
|
|
32 bit depth since it transfers 25% less data compared to the 32/32 mode.</P>
|
|
|
|
<P>I've seen some avi files already be replayed on a Pentium MMX 266. AMD K6-2
|
|
CPUs might work at 400 MHZ and above.</P>
|
|
|
|
<P><B><A NAME=2.3.1.3.8>2.3.1.3.8. Known bugs</A></B></P>
|
|
|
|
<P>Well, according to some developpers of XFree, DGA is quite a beast. They
|
|
tell you better not to use it. Its implementation is not always flawless
|
|
with every chipset driver for XFree out there.</P>
|
|
|
|
<P><UL>
|
|
<LI>with XFree 4.0.3 and nv.o there is a bug resulting in strange colors
|
|
<LI>ATI driver requires to switch mode back more than once after finishing
|
|
using of DGA
|
|
<LI>some drivers simply fail to switch back to normal resolution (use
|
|
Ctrl-Alt-Keypad +, - to switch back manually)
|
|
<LI>some drivers simply display strange colors
|
|
<LI>some drivers lie about the amount of memory they map into the process's
|
|
address space, thus vo_dga won't use doublebuffering (SIS?)
|
|
<LI>some drivers seem to fail to report even a single valid mode. In this
|
|
case the DGA driver will crash telling you about a nonsense mode of
|
|
100000x100000 or the like ...
|
|
<LI>OSD only works with doublebuffering enabled
|
|
</UL></P>
|
|
|
|
<P><B><A NAME=2.3.1.3.9>2.3.1.3.9. Future work</A></B></P>
|
|
|
|
<P><UL><LI>use of the new X11 render interface for OSD
|
|
<LI>where is my TODO list ???? :-(((</UL></P>
|
|
|
|
|
|
<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 XServer 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 mplayer 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>Here are some notes about SDL out in <B>MPlayer</B>.</P>
|
|
|
|
|
|
|
|
<P><TABLE BORDER=0>
|
|
<TD COLSPAN=4><P><B><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>There are several commandline switches for SDL:</B></P></TD><TR>
|
|
<TD> </TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>-vo sdl:name</TD><TD> </TD><TD>
|
|
<FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>specifies sdl video driver to use (ie. aalib, dga, x11)</TD><TR>
|
|
<TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>-ao sdl:name</TD><TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>specifies sdl audio driver to use (ie. dsp,
|
|
esd, arts)</TD><TR>
|
|
<TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>-noxv</TD><TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>disables Xvideo hardware acceleration</TD><TR>
|
|
<TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>-forcexv</TD><TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>tries to force Xvideo acceleration</TD><TR>
|
|
|
|
<TD COLSPAN=4><P><B><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>SDL Keys:</B></P></TD><TR>
|
|
|
|
<TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>F</TD><TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>toggles fullscreen/windowed mode</TD><TR>
|
|
<TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>C</TD><TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>cycles available fullscreen modes</TD><TR>
|
|
<TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>W/S</TD><TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>mappings for * and / (mixer control)</TD><TR>
|
|
|
|
</TABLE></P>
|
|
|
|
<P><B>KNOWN BUGS:</B></P>
|
|
<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>
|
|
|
|
<P><B><A NAME=2.3.1.5>2.3.1.5. SVGAlib</A></B></P>
|
|
|
|
<P>If you don't have X, you can 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?). :(</P>
|
|
|
|
<P>Of course 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><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>
|
|
|
|
<P><TABLE BORDER=0>
|
|
<TD> </TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>-fb</TD><TD> </TD><TD>
|
|
<FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>specify the framebuffer device to use (/dev/fd0)</TD><TR>
|
|
<TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>-fbmode</TD><TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>mode name to use (according to /etc/fb.modes)</TD><TR>
|
|
<TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>-fbmodeconfig</TD><TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2> config file of modes (default /etc/fb.modes)</TD><TR>
|
|
<TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>-monitor_hfreq</TD><TD></TD><TD ROWSPAN=3><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>IMPORTANT values, see example.conf</TD><TR>
|
|
<TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>-monitor_vfreq</TD><TD></TD><TR>
|
|
<TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>-monitor_dotclock</TD><TD></TD><TR>
|
|
</TABLE></P>
|
|
|
|
<P>If you want to change to a specific mode, then use</P>
|
|
|
|
<P><CODE> mplayer -vm -fbmode (NameOfMode) filename</CODE></P>
|
|
|
|
<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><BR>
|
|
and the screen saver: <CODE>setterm -blank 0</CODE><BR>
|
|
To turn the cursor back on : <CODE>echo -e '\033[?25h'</CODE>
|
|
</UL></P>
|
|
|
|
<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>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><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> support displaying movies using OpenGL. Unfortunately, not all
|
|
drivers support this ability. For example the Utah-GLX drivers
|
|
(for XFree86 3.3.6) have it, with 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 it only with Matrox, and Radeon cards.
|
|
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</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. MPlayer contains a very usable driver for it.
|
|
If ./configure detects aalib installed, the aalib libvo driver will be built.</P>
|
|
|
|
<P><TABLE BORDER=0>
|
|
<TD COLSPAN=4><P><B><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>You can use some keys in the AA Window to change rendering options:</B></P></TD><TR>
|
|
<TD> </TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>1</TD><TD> </TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>decrease contrast</TD><TR>
|
|
<TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>2</TD><TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>increase contrast</TD><TR>
|
|
<TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>3</TD><TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>decrease brightness</TD><TR>
|
|
<TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>4</TD><TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>increase brightness</TD><TR>
|
|
<TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>5</TD><TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>switch fast rendering on/off</TD><TR>
|
|
<TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>6</TD><TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>set dithering mode (none, error distribution, floyd steinberg)</TD><TR>
|
|
<TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>7</TD><TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>invert image</TD><TR>
|
|
<TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>a</TD><TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>toggles between aa and mplayer control)</TD><TR>
|
|
|
|
<TD COLSPAN=4><P><B><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>The following command line options can be used:</B></P></TD><TR>
|
|
|
|
<TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>-aaosdcolor=V</TD><TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>change osd color</TD><TR>
|
|
<TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>-aasubcolor=V</TD><TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>change subtitle color</TD><TR>
|
|
<TD COLSPAN=3></TD><TD><P><I><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>where V can be: (0/normal, 1/dark, 2/bold, 3/boldfont, 4/reverse, 5/special)</P></TD><TR>
|
|
|
|
<TD COLSPAN=4><P><B><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>AAlib itselves provides a large sum of options.
|
|
Here are some important:</P></B></TD><TR>
|
|
|
|
<TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>-aadriver</TD><TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>set recommended aa driver (X11, curses, linux)</TD><TR>
|
|
<TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>-aaextended</TD><TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>use all 256 characters</TD><TR>
|
|
<TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>-aaeight</TD><TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>use eight bit ascii</TD><TR>
|
|
<TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>-aahelp</TD><TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>prints out all aalib options</TD><TR>
|
|
</TABLE></P>
|
|
|
|
<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
|
|
bdev to do conversion/dithering to hgafb? Would be neat :)</P>
|
|
|
|
<P>Use the -framedrop option if your comp 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, bu 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</B></P>
|
|
<P>
|
|
This driver was designed and introduced as <b>generic driver</b> for any video
|
|
card which has VESA VBE 2.0 compatible BIOS. But exists still one reason of
|
|
developing of this driver - it's multiple troubles with displaying movie on TV.<BR>
|
|
<b>VESA BIOS EXTENSION (VBE) Version 3.0 Date: September 16, 1998</b> (Page 70)
|
|
says:
|
|
</P>
|
|
|
|
<P>
|
|
<code><i>
|
|
<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.
|
|
</i></code>
|
|
</P>
|
|
|
|
<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>
|
|
- Most important :) You can watch <b>DVD at 320x200</b> if you don't have a powerful CPU.<BR>
|
|
</P>
|
|
|
|
<P>
|
|
<b>What are minuses:</b><BR>
|
|
- It works only on <b>x86 systems</b>.<BR>
|
|
- <b>It's the slowest driver</b> from all the available ones for MPlayer.<BR>
|
|
(But only if your card doesn't support <b>DGA mode</b> - otherwise this
|
|
driver is comparable by speed with <b>-vo dga</b> and <b>-vo fbdev</b> ones.<BR>
|
|
|
|
- It can be used only by <b>ROOT</b>.<BR>
|
|
- Currently it's available only for <b>Linux</b>.<BR>
|
|
- It <b>doesn't use</b> any <b>hardware accelerations</b> (like YUV overlay or hw scaling).<BR>
|
|
</P>
|
|
|
|
<P>Don't use this driver with <B>GCC 2.96</B> ! It won't work !</P>
|
|
|
|
<P>
|
|
<TABLE BORDER=0>
|
|
<TD COLSPAN=4><P><B><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>These switches of command line currently are available for VESA:</B></P></TD><TR>
|
|
<TD> </TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>-vo vesa:opts</TD><TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>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>
|
|
<TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>-screenw, -screenh, -bpp</TD><TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>force userdefined mode</TD><TR>
|
|
<TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>-x, -y</TD><TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>set userdefined prescaling</TD><TR>
|
|
<TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>-zoom</TD><TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>enables userdefined prescaling</TD><TR>
|
|
<TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>-fs</TD><TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>scales image to fullscreen</TD><TR>
|
|
<TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>-fs -zoom</TD><TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>scales userdefined prescaling to fullscreen</TD><TR>
|
|
<TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>-double</TD><TD></TD><TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>enables double buffering mode. (Available only in DGA mode). Should be slower of single buffering, but has no flickering effects.</TD><TR>
|
|
</TABLE>
|
|
</P>
|
|
|
|
<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 mplayer 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 localizating 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</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
|
|
coloured 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.
|
|
<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>
|
|
|
|
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. Rage128 (Pro) / Radeon video overlay (radeon_vid)</A></B></P>
|
|
<P>
|
|
<b>radeon_vid</b> and <B>rage128_vid</B> provides support for the <b>BackEnd Scaler</b> on ATI <b>Radeon</b> and Rage128 (Pro) chipsets.
|
|
It was designed and introduced as analog of <a href="video.html#2.3.1.7">mga_vid</a> driver, so you can use it in the same way!<br>
|
|
But main goal of this driver usage is <a href="video.html#2.3.1.12">VESA</a> driver.<br>
|
|
Simply because VESA enables TV-out on ATI's card but Backend scaler is used after
|
|
mode switching. This implementation outputs video stream on both: <b>TV-screen</b> and <b>CRTC</b>
|
|
display simultaneously. (It slightly degrades quality of video output but it's
|
|
much better than nothing).
|
|
Sorry! I couldn't find out any video overlay's related information
|
|
on ATI pages. (I planned to implement it through <b>int 10h</b> calls). But it was
|
|
very easy to implement this stuff through reading/writing Radeon ports.
|
|
<br><b>NOTE</b>: XXX_VID technology is perfectly undocumented and maybe in the
|
|
future this stuff will be fully rewritten. This is the first public release of
|
|
driver.</P>
|
|
|
|
<P><B>Installation</B></P>
|
|
|
|
<P>
|
|
<UL>
|
|
<LI>
|
|
<CODE>cd drivers/radeon<BR>
|
|
make<BR>
|
|
make install<BR>
|
|
make nodes</CODE></LI>
|
|
<LI>add one of the following at the end of the <CODE>/etc/modules.conf</CODE> file :<BR>
|
|
<CODE> alias char-major-178 radeon_vid</CODE><BR>
|
|
<CODE> alias char-major-178 rage128_vid</CODE></LI>
|
|
<LI>run <CODE>depmod -a</CODE></LI>
|
|
</UL>
|
|
</P>
|
|
|
|
<P>
|
|
<br><b>Usage:</b><BR>
|
|
<CODE>mplayer -vo vesa:lvo:/dev/radeon_vid <your options> filename</CODE>
|
|
</P>
|
|
|
|
<P>More examples (for hardware deinterlacing, etc) can be found
|
|
<A HREF="../drivers/radeon/README">here</A>.</P>
|
|
|
|
<P><B>NOTE</B>: don't use any framebuffers when you plan to use this driver ! Use
|
|
it only from textmode console.</P>
|
|
|
|
<P>
|
|
<b>Conclusion:</b> I know there are lot of lacks and bugs. So if you are able
|
|
to improve something then simply send me your patches.
|
|
</P>
|
|
|
|
|
|
<P><B><A NAME=2.3.1.A>2.3.1.A. TV-out support</A></B></P>
|
|
|
|
<P><B><A NAME=2.3.1.A.1>2.3.1.A.1. Matrox cards</A></B></P>
|
|
|
|
<P>Under Linux you have 2 methods to get TV out working :</P>
|
|
|
|
<P>
|
|
<UL>
|
|
<LI><B>XFree86</B>: using the driver and the HAL module, available from
|
|
<A HREF="http://www.matrox.com">Matrox's site</A>. This will give you X on
|
|
the TV.<BR> <B>This method doesn't give you accelerated playback</B> as
|
|
under Windoze! The second head has only YUV framebuffer, the <I>BES</I>
|
|
(Back End Scaler, the YUV scaler on G200/G400/G450/G550 cards) doesn't work
|
|
on it! The windows driver somehow workarounds this, probably by using the
|
|
3D engine to zoom, and the YUV framebuffer to display the zoomed
|
|
image. If you really want to use X, use the <CODE>-vo x11 -fs -zoom</CODE>
|
|
options, but it will be <B>SLOW</B>, and has <B>Macrovision</B> copyprotection
|
|
enabled.</LI>
|
|
<LI><B>Framebuffer</B>: using the <B>matroxfb modules</B> in the 2.4 kernels.
|
|
2.2 kernels don't have the TVout feature in them, thus unusable for this.
|
|
You have to enable ALL matroxfb-specific feature during compilation (except
|
|
MultiHead), and compile them into <B>modules</B>!
|
|
<UL>
|
|
<LI>
|
|
Enter <CODE>TVout/matroxset</CODE> and type <CODE>make</CODE>. Install
|
|
<CODE>matroxset</CODE> into somewhere in your PATH.</LI>
|
|
<LI>
|
|
If you don't have <CODE>fbset</CODE> installed, enter
|
|
<CODE>TVout/fbset</CODE> and type <CODE>make</CODE>. Install
|
|
<CODE>fbset</CODE> into somewhere in your PATH.</LI>
|
|
<LI>
|
|
Then enter into the <CODE>TVout/</CODE> directory in the <B>MPlayer</B>
|
|
source, and execute <CODE>./modules</CODE> as root. Your text-mode console
|
|
will enter into framebuffer mode (no way back!).</LI>
|
|
<LI>Next, run the <CODE>./matroxtv</CODE> script. This will present you
|
|
to a very simple menu. Press <B>2</B> and <B>ENTER</B>. Now you should
|
|
have the same picture on your monitor, and TV. The <B>3.</B> option
|
|
will turn on independent display, but then you <B>can't use X</B>! If
|
|
the TV (PAL !) picture has some weird stripes on it, the script wasn't able to
|
|
set the resolution correctly (to 640x512 by default). Use other menu
|
|
items randomly and it'll be OK :)</LI>
|
|
</UL>
|
|
|
|
<P>
|
|
Yoh. Next task is to make the cursor on tty1 (or whatever) to disappear,
|
|
and turn off screen blanking. Execute the following commands:</P>
|
|
|
|
<P>
|
|
<CODE>echo -e '\033[?25l'<BR>
|
|
setterm -blank 0</CODE>
|
|
</P>
|
|
|
|
<P>
|
|
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>
|
|
</P>
|
|
|
|
<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>
|
|
<B>Enjoy the ultra-fast ultra-featured Matrox TV output (better than Xv) !</B>
|
|
</P>
|
|
</LI>
|
|
</LI>
|
|
</UL>
|
|
</P>
|
|
|
|
|
|
<P><B><A NAME=2.3.1.A.2>2.3.1.A.2. ATI cards</A></B></P>
|
|
|
|
<P>
|
|
<b>A few word about ATI's TV-out:</b><BR>
|
|
Currently ATI doesn't want to support any of its TV-out chips under Linux.
|
|
Below is official answer from ATI Inc.:
|
|
|
|
<P>
|
|
<code>
|
|
<i>
|
|
<br>> Hello!
|
|
<br>>
|
|
<br>> On your pages you wrote that you support linux developers.
|
|
<br>> Currently I participate with mplayer project (www.mplayerhq.hu)
|
|
<br>> I'm interesting with enabling TV-out on Radeon VE chips during
|
|
<br>> movie playback. I would be glad to add this feature to radeonfb driver
|
|
<br>> (which can be found in CVS tree of mplayer project at main/drivers/radeon).
|
|
<br>> Do I have a chance to get any official technical documenation?
|
|
</i>
|
|
<br>We will not provide TV out related documents due to macrovision concerns.
|
|
<br>Also mpeg2 decoding is something that we MAY consider in the future but not
|
|
<br>at this current time. This is again due to proprietary and 3rd party
|
|
<br>information.
|
|
</code>
|
|
</P>
|
|
|
|
<P>Pity isn't?</P>
|
|
|
|
<P>
|
|
<code>
|
|
<B>Q:What is Macrovision?</B><BR>
|
|
A:It's copy protection mechanism.</code>
|
|
</P>
|
|
|
|
<P>It means that if they open any TV-out related information then
|
|
hackers will be able to disable copy protection on their chips. Therefore
|
|
we have no chance to get working TV-out on ATI.</P>
|
|
|
|
<P>What's status of ATI's tv-out chips under Linux:
|
|
<LI><b>ATI Mach64</b> has <i>ImpacTV</i> which is supported by gatos.
|
|
<LI><b>ASIC Radeon VIVO</b> has <i>Rage Theatre</i> which is supported by gatos.
|
|
<LI><b>Radeon VE</b> and <b>Rage PRO LT</b> have <i>ImpacTV2+</i> which is not supported under Linux.
|
|
But with <B>MPlayer</B> you get <B>full hardware acceleration</B> and <B>TV out</B>
|
|
for Radeons !
|
|
Check <a href=#2.3.1.12>VESA driver</a> and <A HREF=#2.3.1.14>Radeon
|
|
acceleration</A> sections.</P>
|
|
|
|
<P>
|
|
Fortunately, owners of fast enough CPUs (Duron, Celeron2 and better) <b>can watch
|
|
movies on their TV</b> through <a href=#2.3.1.12>VESA drivers</a>.
|
|
</P>
|
|
|
|
<P>
|
|
I should say good words to ATI Inc. too:<br>
|
|
<b>they produce top quality BIOSes.</b>
|
|
</P>
|
|
|
|
<P>
|
|
<b>VESA drivers</b> don't use any hardware acceleration but it simulates
|
|
<b>DGA</b> through 64K window, which is configured through 32-bit mode
|
|
functions of BIOS. ATI cards have enough <b>fast video memory</b> (DIMM or DDR
|
|
chips with 64 - 128-bit access) so it's not bottleneck for them. There are no
|
|
limitations on which video mode can be displayed on your TV (like on other
|
|
cards) so you can use <b>any video mode</b> on your <b>TV</b> (from
|
|
<b>320x200</b> up to <b>1024x768</b>).<br>
|
|
From other side (it's known at least for <b>Radeons</b>) there is <b>DGA</b>
|
|
mode which is detected automatically and in this case you'll get comparable
|
|
with <b>-vo dga</b> and <b>-vo fbdev</b> drivers speed.<br>
|
|
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>
|
|
|
|
<P>
|
|
For detail see <a href="video.html#2.3.1.12">VESA</a> sections of this
|
|
documentation.
|
|
</P>
|
|
|
|
|
|
<P><B><A NAME=2.3.1.A.3>2.3.1.A.3. Voodoo 3</A></B></P>
|
|
|
|
<P>
|
|
Check <A HREF="http://www.iki.fi/too/tvout-voodoo3-3000-xfree">this URL</A>.
|
|
</P>
|
|
|
|
</BODY>
|
|
</HTML>
|