2001-08-21 21:01:54 +00:00
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<HTML>
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<BODY>
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<PRE>
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2001-08-23 17:08:46 +00:00
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<A NAME=2.1>2.1. Video Formats, Audio & Video Codecs</A>
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2001-08-21 21:01:54 +00:00
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2001-08-23 17:08:46 +00:00
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<A NAME=2.1.1>2.1.1. Supported input formats</A>
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2001-08-21 21:01:54 +00:00
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<B>MPlayer</B> can read/play from the following devices/formats:
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- VCD (Video CD) directly from CD-ROM or from CDRwin's .bin image file
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- DVD, directly from your DVD disk, using optional libcss for decryption
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- MPEG 1/2 System Stream (PS/PES/VOB) and Elementary Stream (ES) file
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formats
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- RIFF AVI file format
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- ASF 1.0 file format
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- supports reading from file, stdin, DVD drive or network via HTTP
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Note: about quicktime (.mov/.qt) and realmedia (.ra/.rm) support read the FAQ!
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2001-08-23 17:08:46 +00:00
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<A NAME=2.1.2>2.1.2. Supported audio & video codecs</A>
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2001-08-21 21:01:54 +00:00
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2001-08-23 17:08:46 +00:00
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See http://mplayerhq.hu/MPlayer/DOCS/codecs.html for the complete,
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2001-08-21 21:01:54 +00:00
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daily updated list!!!
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The most important video codecs:
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- MPEG1 (VCD) and MPEG2 (DVD) video
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- DivX, FFmpeg, OpenDivX and other MPEG4 variants
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- Windows Media Video 7 (WMV1) and Windows Media Video 8 used in .wmv files
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- Intel Indeo codecs (3.1,3.2,4.1,5.0)
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- MJPEG, ASV2 and other hardware formats
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The most important audio codecs:
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- MPEG layer 2, and layer 3 (MP3) audio (native code, with 3dnow optimization)
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- AC3 dolby audio (native code, with 3dnow optimization)
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2001-08-23 17:08:46 +00:00
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-<2D>AC3 passthrough to soundcard's decoder
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2001-08-21 21:01:54 +00:00
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- Voxware audio
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- alaw, msgsm, pcm and other simple old audio formats
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If you have a codec not listed here, and not supported yet, just
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2001-08-23 17:08:46 +00:00
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read http://mplayerhq.hu/MPlayer/DOCS/codecs.html
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2001-08-21 21:01:54 +00:00
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to get info about its status and about how to help us adding support for it!
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2001-08-23 17:08:46 +00:00
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<A NAME=2.1.2.1>2.1.2.1. DivX4</A>
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2001-08-21 21:01:54 +00:00
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2001-08-22 16:57:49 +00:00
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This section contains information about the DivX4 codec of
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2001-08-21 21:01:54 +00:00
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<A HREF="http://www.projectmayo.com">ProjectMayo</A>. Their first available alpha version was the OpenDivX 4.0
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alpha 47 and 48. Support for this was/is included in <B>MPlayer</B>, and built by
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default. We even used its postprocessing code to optionally enhance visual
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quality of MPEG1/2 movies.
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The new generation of this codec can even decode movies made with the
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infamous DivX codec! And it's not everything, it's MUCH faster than the
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traditional Win32 DivX DLL's. See below for configuration. The only
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disadvantage of this codec is that it's currently closed-source. :(
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The codec can be downloaded from the following URL:
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http://download2.projectmayo.com/dnload/divx4linux/divx4linux-20010718.zip
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No automatic installing available at this time, so install it manually,
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EXACTLY as described here. Unpack it, and copy files to their place:
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cp libdivxdecore.so.0.0.0 /usr/local/lib/
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ln -s /usr/local/lib/libdivxdecore.so.0.0.0 /usr/local/lib/libdivxdecore.so.0
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ln -s /usr/local/lib/libdivxdecore.so.0 /usr/local/lib/libdivxdecore.so
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ldconfig
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cp decore.h /usr/local/include/
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2001-08-22 16:57:49 +00:00
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<B>MPlayer</B> autodetects if DivX4 is (properly) installed, just compile
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2001-08-21 21:01:54 +00:00
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as usual. If it doesn't detect it, you didn't install it exactly as above,
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2001-08-22 16:57:49 +00:00
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and/or has fucked up config (see last question of 5.1 section).
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2001-08-21 21:01:54 +00:00
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Using it is a bit tricky. As it conflicts with the old OpenDivX (it's API is
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very similar to OpenDivX's), OpenDivX code is disabled, and the OpenDivX
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driver calls this library too.
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Generally we can pinpoint this issue to that you have two options to use
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this codec:
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-vc odivx : using divx4 codec as a new version of OpenDivX.
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in this case it produces YV12 image in its own buffer,
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and <B>MPlayer</B> (libvo) does colorspace conversion.
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-vc divx4 : using divx4 codec's colorspace conversion.
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in this mode, you can use YUY2/UYVY too.
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The 'odivx' method is usually faster, due to the fact that it transfers
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image data in YV12 (planar YUV 4:2:0) format, thus requiring much less
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bandwidth on the bus. For packed YUV modes (YUY2, UYVY) use the 'divx4'
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method. For RGB modes you can choose freely, their speed is same, maybe
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differ according to the current bpp.
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Note: it supports postprocessing too, but range of values is strange:
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0 no postproc
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10 .. 20 postprocessing, normal
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(like level 2 with divxds)
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30 .. 60 hard postprocessing, eats many CPU.
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(like level 4 with divxds)
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2001-08-23 17:08:46 +00:00
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<A NAME=2.1.2.2>2.1.2.2. ffmpeg's DivX/libavcodec</A>
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2001-08-21 21:01:54 +00:00
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Beginning with version 0.4.2 , <A HREF="http://ffmpeg.sourceforge.net">ffmpeg</A> contains an <B>opensource</B> DivX codec,
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2001-08-22 16:57:49 +00:00
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which is compatible with the traditional DivX. <B>MPlayer</B> supports this codec,
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2001-08-21 21:01:54 +00:00
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and this makes it possible to <B>watch DivX movies on non-x86 platforms!</B>
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2001-08-22 16:57:49 +00:00
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It was removed from <B>MPlayer</B>'s cvs tree, you have to download it
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manually directly from <B>FFmpeg</B>'s tree :
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2001-08-21 21:01:54 +00:00
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cvs -d:pserver:anonymous@cvs.ffmpeg.sourceforge.net:/cvsroot/ffmpeg login
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cvs -d:pserver:anonymous@cvs.ffmpeg.sourceforge.net:/cvsroot/ffmpeg co ffmpeg
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Note: if you copy with CVS subdirs, next time it's enough to do
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'cvs update'.
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Now, move the newly downloaded ffmpeg source's <B>libavcodec</B> directory,
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(with all it's subdirectories) to <B>MPlayer</B>'s tree, so it will look
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like this :
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main/libavcodec
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Symlinking is NOT enough, you have to copy it.
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./configure detects if it can be built. At the moment it doesn't support
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postprocessing, and is under optimization (it's faster than the DS/VfW DivX
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codec).
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In order to use it, refresh your codecs.conf file, and do as the manpage,
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or the example.conf says (the -vfm option).
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Note: libavcodec contains other codecs as well, but at the moment we mostly
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focus on ffdivx, and it's unlikely that this will change.
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2001-08-22 16:57:49 +00:00
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2001-08-23 17:08:46 +00:00
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<EFBFBD><EFBFBD><A<EFBFBD>NAME=2.1.2.3>2.1.2.3. Hardware AC3 decoding</A>
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2001-08-21 21:01:54 +00:00
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2001-08-23 17:08:46 +00:00
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You will need a soundcard with AC3 passthrough capability to digital out
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(SP/DIF). Also, the its driver has to support AFMT_AC3 (SB Live! for example)
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Connect the hardware AC3 decoder to your soundcard's SP/DIF, and use
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-ac hwac3 . It may work.
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2001-08-21 21:01:54 +00:00
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2001-08-23 17:08:46 +00:00
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<A NAME=2.1.4>2.1.4. Codec importing howto</A>
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<A NAME=2.1.4.1>2.1.4.1. VFW codecs</A>
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2001-08-21 21:01:54 +00:00
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VfW (Video for Windows) is the old Video API for Windows. Its codecs have
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the .DLL or (rarely) .DRV extension.
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If <B>MPlayer</B> fails with your AVI:
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UNKNOWN video codec: HFYU (0x55594648)
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It means your AVI is encoded with a codec which has the HFYU fourcc (HFYU =
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HuffYUV codec, DIV3 = DivX Low Motion, etc...). Now that we know this, we'll
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have to find out which DLL Windows loads in order to play this file. In our
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case, the system.ini contains this (with many others):
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VIDC.HFYU=huffyuv.dll
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So we'll need the huffyuv.dll file. Note that the audio codecs are specified
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with the MSACM prefix :
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msacm.l3acm=L3codeca.acm
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This is the MP3 codec.
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So, now we have all the info needed (fourcc, codec file, sample AVI), submit
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your codec support request in mail, and upload these files to the FTP:
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ftp://mplayerhq.hu/MPlayer/incoming/[codecname]/
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2001-08-23 17:08:46 +00:00
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<A NAME=2.1.4.2>2.1.4.2. DirectShow codecs</A>
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2001-08-21 21:01:54 +00:00
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DirectShow is the newer Video API, which is even worse than its predecessor.
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Things are harder with DirectShow, since
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- system.ini doesn't contain the needed information, instead it's stored in
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the registry :(
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- we'll need the GUID of the codec.
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So let's search that goddamn registry..
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- Start 'regedit'
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- press ctrl-f, disable the first two checkbox, and enable the third. Type
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the fourcc of the codec. (for ex.: TM20)
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- you should see a field which contains the path and filename
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(for ex. : C:\WINDOWS\SYSTEM\TM20DEC.AX)
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- now that we have the file, we'll need the GUID. Try searching again, but
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now we'll search for the codec's name, not the fourcc. Its name can be acquired
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when Media Player is playing that file, by checking File/Properties/Advanced.
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If not, bad luck ;) Try guessing.
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(for ex. search for : TrueMotion)
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- if found (in registry), there should be a FriendlyName field, and a CLSID
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field. Write down that 16 byte of CLSID, this is the GUID required by us.
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NOTE : if searching fails, try to enable all the checkboxes.. you may have
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false hits, but maybe you'll have the right, too...
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NOTE : dump that M$ shit.
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So, now we have all the info needed (fourcc, GUID, codec file, sample AVI),
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submit your codec support request in mail, and upload these files to the FTP:
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ftp://mplayerhq.hu/MPlayer/incoming/[codecname]/
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</PRE>
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</BODY>
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</HTML>
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