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https://github.com/mpv-player/mpv
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7573c29480
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@31032 b3059339-0415-0410-9bf9-f77b7e298cf2
122 lines
3.9 KiB
Plaintext
122 lines
3.9 KiB
Plaintext
framebuffer driver for ATI Radeon chipset video boards
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======================================================
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These files are replacement for linux-2.4.x-ac.y drivers.
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To use this driver you should have at least linux-2.4.5-ac.1
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then simply replace linux/drivers/video/radeon* with files
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from this directory.
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Note: since linux-2.4.10 this driver was moved from -ac to
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Linus distribution.
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Alternative way:
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~~~~~~~~~~~~~~~~
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Simply type two commands in this directory:
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make
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make install
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Anyway you should have 'framebuffer support' compiled into linux-kernel
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and at least '8bpp packed pixel support' compiled and installed as module.
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(But if you plan to use this module with MPlayer you also should have
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16bpp, 24bpp and 32bpp pixel support compiled as modules).
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Radeon video overlay
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====================
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It was designed for MPlayer and currently can be used only by MPlayer.
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It's RGB-YUV BES for Radeon cards (althrough there is experimental
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support for Rage128 / Rage128pro chips).
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rage128_vid is contained within radeon_vid.c. As for a Rage128 framebuffer -
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use the one from your Linux distribution.
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Installation:
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~~~~~~~~~~~~~
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Simply type two commands in this directory:
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make
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make install
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Using with MPlayer:
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~~~~~~~~~~~~~~~~~~~
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Currently there is only one way to use ATI's drivers:
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mplayer -vo vesa:lvo:/dev/radeon_vid -<your vesa's options> filename
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or
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mplayer -vo vesa:lvo:/dev/rage128_vid -<your vesa's options> filename
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For YV12 formats you can use also:
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mplayer -vo mga:/dev/radeon_vid -<your mga's option> filename
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but in this case you should load at least radeonfb driver from
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this package.
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Configuring:
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~~~~~~~~~~~~
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You can tune some parameters with the following trick:
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echo "parameter=value" > /dev/radeon_vid
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Example (disables adaptive deinterlacing):
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echo "deinterlace=off" > /dev/radeon_vid
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To know more about these parameters - try reading the /dev/radeon_vid file ;)
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For example:
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cat /dev/radeon_vid
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List of parameters:
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~~~~~~~~~~~~~~~~~~~
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If you have Rage128 chip:
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brightness=decval (-64:+63) changes brightness
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saturation=decval (0:+31) changes saturation 0 == grayscale mode
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else - if you have Radeon:
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brightness=decval (-1000:+1000) -1000 == black screen
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saturation=decval (-1000:+1000) -1000 == grayscaled mode
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contrast=decval (-1000:+1000) -1000 == black screen
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hue=decval (-1000:+1000) -1000 == +1000 (full circle)
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all other values are within this range
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Note: 0 is the default value for every parameter on Radeons.
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WARNING: This driver violates the rule: "no float in the kernel".
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So if you have problems then don't use color correction.
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double_buff=on/off enables/disables double buffering
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deinterlace=on/off enables/disables adaptive deinterlacing
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deinterlace_pattern=hexval defines deinterlacing pattern
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Driver parameters:
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~~~~~~~~~~~~~~~~~~
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You can use some additional parameters during module loading:
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Example:
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modprobe radeon_vid swap_fourcc=1
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List of driver parameters:
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~~~~~~~~~~~~~~~~~~~~~~~~~~
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mtrr=1/0 Configures MTRR (if available), default = 1.
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swap_fourcc=1/0 Performs byte swapping of passed fourcc.
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(It's required for compatibility with -vo mga.)
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To know more about driver parameters execute:
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modinfo radeon_vid
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or
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modinfo rage128_vid
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Note:
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~~~~~
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For command line of MPlayer:
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You can pass only options with can be recognized by vo_vesa driver.
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(Indeed radeon_vid and rage128_vid are stupid things and can only create
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video overlay. Mode switching and other adjustments are performed by the
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vo_vesa driver. This mean that they use the VESA BIOS as graphics server.)
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Conclusion:
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~~~~~~~~~~~
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This stuff (radeon(rage128)_vid) currently doesn't support any standards.
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Full example:
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~~~~~~~~~~~~~
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modprobe radeon_vid mtrr=1
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echo "deinterlace_pattern=F0055555" > /dev/radeon_vid
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mplayer -vo vesa:lvo:/dev/radeon_vid -fs -zoom -bpp 32 filename
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Enjoy!
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