mirror of https://github.com/mpv-player/mpv
Our DirectFB documentation is dated, the current version is now linked to
from video.xml. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@11825 b3059339-0415-0410-9bf9-f77b7e298cf2
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diego
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Written by Ville Syrjälä <syrjala@sci.fi>, original can be found at
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http://www.sci.fi/~syrjala/directfb/readme.txt
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For more information see also http://www.directfb.org
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--------------------------------------------------------------------------------
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DirectFB includes TV out support for Matrox G400 cards.
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If you've used the Windows drivers you most likely know about
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DVDMax... DirectFB provides the same functionality. Now you can get
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excellent quality video playback on your TV.
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DirectFB TV output features:
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- interlaced picture
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- 720x576 50Hz PAL and 720x486 60Hz NTSC
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- RGB15, RGB16, RGB32, ARGB, YUY2, UYVY, I420, YV12 pixel formats
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- hardware blended sub-picure in I420 and YV12 modes
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- brightness, contrast, hue, saturation adjustments
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- no more tweaking sessions with fbset to get the image centered :)
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I recommend you use DirectFB 0.9.15 or later since some vsync problems
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were fixed in that release.
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Linux kernel setup:
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1. Patch your kernel with matroxfb-vsync-c2vline-irq-patch-2.4.19.bz2
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It's distributed with DirectFB sources in the patches subdirectory.
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This patch enables IRQ based vblank waiting. Make sure your card has
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an IRQ assigned to it. You may have an option in the BIOS setup for
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this.
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2. Add "#define FBIO_WAITFORVSYNC _IOW('F', 0x20, int)" to
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/usr/include/linux/fb.h
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3. Build and install the kernel. Set the following options:
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CONFIG_I2C
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CONFIG_I2C_ALGOBIT
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CONFIG_I2C_CHARDEV
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CONFIG_I2C_PROC
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CONFIG_FB_MATROX
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CONFIG_FB_MATROX_G100
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CONFIG_FB_MATROX_I2C
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DirectFB doesn't require kernel support for the second head. In fact it may
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interfere with the TV out.
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4. Make sure you have the proper /dev/i2c-N device file in place.
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After loading i2c-matroxfb module you should see MAVEN in
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/proc/bus/i2c. You must have the corresponding device file. To
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create these files use:
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'mknod /dev/i2c-N c 89 N' where N is 0,1,2...
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The number might change depending on the order you load i2c modules
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so you may want to create some extra files.
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DirectFB setup:
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1. Build and install DirectFB
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2. Use the following DirectFB options:
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matrox-crtc2
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matrox-tv-standard=pal or ntsc
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You can store them in /etc/directfbrc or ~/.directfbrc so that the will be
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used every time.
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That's pretty much it. Well you do need some applications. mplayer has
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a special video out plugin 'dfbmga' for this stuff. You need a recent
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version of mplayer to use it.
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@ -1585,24 +1585,26 @@ be done by the subdevice method, e.g.: <option>-vo directfb:2</option>
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<sect4 id="dfbmga">
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<title>DirectFB/Matrox (dfbmga)</title>
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<para>
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Please read the <link linkend="directfb">main DirectFB</link> section or general
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informations.
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</para>
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<para>This video output driver will enable CRTC2 (on the second head) on the
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Matrox G400/G450/G550 card, displaying video <emphasis role="bold">independently</emphasis>
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of the first head.
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Please read the <link linkend="directfb">main DirectFB</link> section for general
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information.
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</para>
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<para>
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Instructions on how to make it work can be found in the
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<ulink url="../../tech/directfb.txt">tech</ulink> section
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or directly on Ville Syrjala's
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<ulink url="http://www.sci.fi/~syrjala/directfb/Matrox_TV-out_README.txt">home page</ulink>.
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This video output driver will enable CRTC2 (on the second head) on Matrox
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G400/G450/G550 cards, displaying video
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<emphasis role="bold">independent</emphasis> of the first head.
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</para>
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<para>
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Ville Syrjala's has a
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<ulink url="http://www.sci.fi/~syrjala/directfb/Matrox_TV-out_README.txt">README</ulink>
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and a
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<ulink url="http://www.sci.fi/~syrjala/directfb/matrox_tv-out_howto">HOWTO</ulink>
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on his homepage that explain how to make DirectFB TV output run on Matrox cards.
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</para>
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<note><para>
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the first DirectFB version with which we could kick this working was
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the first DirectFB version with which we could get this working was
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0.9.17 (it's buggy, needs that <systemitem>surfacemanager</systemitem> patch from
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the URL above). Anyway, porting of the CRTC2 code to <emphasis role="bold">mga_vid</emphasis>
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is underway.
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