mirror of
https://github.com/mpv-player/mpv
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git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@9645 b3059339-0415-0410-9bf9-f77b7e298cf2
944 lines
44 KiB
HTML
944 lines
44 KiB
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{font-family : Verdana, Arial, Helvetica, sans-serif;
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font-size : 14px;}
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</HEAD>
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<BODY BGCOLOR=white>
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<FONT CLASS="text">
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<P><B><A NAME=5>5. FAQ section</A></B></P>
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<TABLE BORDER=0 WIDTH=100% ALIGN=left>
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<TR><TD COLSPAN=3><P><B><A NAME=5.1><FONT CLASS="text">5.1 Compilation</A></B></P>
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</TD><TR><TD COLSPAN=3> </TD><TR>
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<TD> </TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
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Configure ends with this text, and MPlayer won't compile!<BR>
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<CODE>"Your gcc does not support even i386 for '-march' and '-mcpu'."</CODE>
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</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
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Your gcc isn't installed correctly, check the <CODE>config.log</CODE> file
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for details.
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</TD><TR><TD COLSPAN=3> </TD><TR>
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<TD> </TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
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What does "No such file or directory" mean?
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</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
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Probably there is no such file or directory.
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</TD><TR><TD COLSPAN=3> </TD><TR>
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<TD> </TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
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What's the problem with gcc 2.96?
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</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
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<B><I>We strongly discourage the use of gcc 2.96!!!</I></B><BR>
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Read <A HREF="gcc-2.96-3.0.html">this</A> and <A HREF="users_against_developers.html">this</A>
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document for details. If you still really really want to use it, be sure to get
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the latest release, but remember that you are on your own. Do <B>not</B> report
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bugs or ask for help on the mailing lists. We will <B>not</B> provide any support
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in case you run into problems.
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<BR>
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</TD><TR><TD COLSPAN=3> </TD><TR>
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<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
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Great, I have gcc 3.0.1 from Red Hat/Mandrake, then I'm fine--!
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</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
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No, since there have been/are issues with these compilers as well.<BR>
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Use the 2.95.x series for reliability (not <A HREF="gcc-2.96-3.0.html">2.96</A>).
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Use the latest gcc 3.0.x (starting at 3.0.2) if you want to use a 3.0.x version.
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</TD><TR><TD COLSPAN=3> </TD><TR>
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<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
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I tried to compile MPlayer, but I got this output:
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<PRE>
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In file included from /usr/include/g++-v3/bits/std_cwchar.h:42,
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from /usr/include/g++-v3/bits/fpos.h:40,
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from /usr/include/g++-v3/bits/char_traits.h:40,
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from /usr/include/g++-v3/bits/std_string.h:41,
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from /usr/include/g++-v3/string:31,
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from libwin32.h:36,
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from DS_AudioDecoder.h:4,
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from DS_AudioDec.cpp:5:
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/usr/include/wchar.h: In function Long long int wcstoq(const wchar_t*,
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wchar_t**, int)':
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/usr/include/wchar.h:514: cannot convert `const wchar_t* __restrict' to
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`const
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</PRE>
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</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
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Upgrade your glibc to the latest release. On Mandrake, use 2.2.4-8mdk.
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</TD><TR><TD COLSPAN=3> </TD><TR>
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<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
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... gcc 2.96 ... (Yes, some people are STILL flaming about their gcc 2.96!!)
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</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
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Quoted from a <A HREF="http://www.mplayerhq.hu/pipermail/mplayer-users/2001-October/005351.html">mail</A> A'rpi sent to the mplayer-users list (the word 'ideg' is described below):
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<BLOCKQUOTE>
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<P>And we have idegs. And our idegcounter overflowed again and again.</P>
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<P>Unfortunately MPlayer is out of our control. It's used by lamers, Linux users
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who can't even use Windows, and never tried to compile a kernel. They installed
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(with default options) Mandrake or Red Hat or SuSE, and without RTFM'ing they
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send messages saying 'it doesn't work! help me! please! i'm new to Linux!
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help! oh! help me!'. We can't stop them, but at least we try to force them to
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RTFM and to read messages of ./configure and MPlayer.</P>
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<P>And you clever guys come and flame us with gcc 2.96 and binary packages.
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Instead of helping users or making patches to help solve problems.</P>
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<P>Half of our spare/free time is spent by answering silly mails here and
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making newer tricks and checks to configure to avoid such mails.</P>
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<P>And there is a balance. On the one side are you, clever guys, saying we are
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very bad because we don't like buggy gcc 2.96, and on the other side there are
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the 'new to Linux' guys who are showing us gcc 2.96 is buggy.</P>
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<P>Conclusion: We can't be good. Half the people always will say we are bad.</P>
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<P>Maybe we should close the project, make it closed source, commercial, and
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provide install support for it. then we could leave current work, so
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development could go faster, and we could earn lots of money with it and buy a
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big house, etc etc. Do you really want it? It seems.</P>
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</BLOCKQUOTE>
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</TD><TR><TD COLSPAN=3> </TD><TR>
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<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
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Where can I find information about gcc 2.96 bugs?
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</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
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In <A HREF="gcc-2.96-3.0.html">this</A> document. And <A HREF="users_against_developers.html">this</A>
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document describes why Red Hat released 2.96 and other interesting things.
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</TD><TR><TD COLSPAN=3> </TD><TR>
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<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
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SDL output doesn't work or compile. The problem is ...
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</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
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It was tested to work with SDL 1.2.x and may run on SDL 1.1.7+.
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It does <B>not</B> work with any previous version. So if you choose to use such
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a version, you are on your own.
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</TD><TR><TD COLSPAN=3> </TD><TR>
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<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
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I am still having trouble compiling with SDL support. gcc says something
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about "undefined reference to `SDL_EnableKeyRepeat'". What now?
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</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
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Where did you install the SDL library? If you installed in /usr/local
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(the default) then edit the top level config.mak and add
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"-L/usr/local/lib" after "X_LIBS=". Now type make. You're done!
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</TD><TR><TD COLSPAN=3> </TD><TR>
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<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
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It doesn't compile, and it misses uint64_t inttypes.h and similar things ...
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</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
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Copy etc/inttypes.h to the <B>MPlayer</B> directory (<CODE>cp etc/inttypes.h .</CODE>)
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and try again ...
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</TD><TR><TD COLSPAN=3> </TD><TR>
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<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
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I have Linux running on a Pentium III but <CODE>./configure</CODE> doesn't detect
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SSE ...
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</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
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Only kernel versions 2.4.x support SSE (or try 2.2.19 or newer, but
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be prepared for problems).
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</TD><TR><TD COLSPAN=3> </TD><TR>
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<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
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I have a G200/G400, how do I compile/use the mga_vid driver?
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</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
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Read the <A HREF="video.html#2.3.1.7">documentation</A>.
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</TD><TR><TD COLSPAN=3> </TD><TR>
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<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
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Are there rpm/deb/... packages of <B>MPlayer</B>?
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</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
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You can make a .deb package for yourself, check the <A HREF="documentation.html#6.1">Debian packaging</A> section.
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There are RPM packages available on our homepage, don't use other sources!
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</TD><TR><TD COLSPAN=3> </TD><TR>
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<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
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During 'make', MPlayer complains about X11 libraries. I don't understand,
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I DO have X installed!?
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</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
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... but you don't have the X development package installed. Or not
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correctly. It's called XFree86-devel* under Red Hat, and xlib6g-dev* under
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Debian. Also check if the <CODE>/usr/X11</CODE> and <CODE>/usr/include/X11</CODE>
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symlinks exist (this can be a problem on Mandrake systems). They can be created
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with these commands:<BR>
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<CODE>$ ln -sf /usr/X11R6 /usr/X11</CODE><BR>
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<CODE>$ ln -sf /usr/X11R6/include/X11 /usr/include/X11</CODE><BR>
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Your distribution may differ from the
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<A HREF="http://www.pathname.com/fhs/">Filesystem Hierarchy Standard</A>.
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</TD><TR><TD COLSPAN=3> </TD><TR>
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<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
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What about the DGA driver? I can't find it!!!
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</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
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<CODE>./configure</CODE> autodetects your DGA driver. If <CODE>-vo help</CODE> doesn't show
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DGA, then there's a problem with your X installation.
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Try <CODE>./configure --enable-dga</CODE> and read the
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<A HREF="video.html#2.3.1.3">documentation</A>.
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Alternatively, try SDL's DGA driver with the <CODE>-vo sdl:dga</CODE> option.
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</TD><TR><TD COLSPAN=3> </TD><TR>
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<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
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I can't compile SVGAlib. I'm using kernel 2.3/2.4 ...
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</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
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You have to edit SVGAlib's Makefile.cfg and comment <CODE>BACKGROUND = y</CODE> out.
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</TD><TR><TD COLSPAN=3> </TD><TR>
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<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
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I compiled MPlayer with libdvdcss/libdivxdecore support, but when
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I try to start it, it says:<BR>
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<CODE>> error while loading shared libraries: lib*.so.0: cannot load
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shared object file: No such file or directory</CODE><BR>
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I checked up on the file and it IS there in <CODE>/usr/local/lib</CODE> ...
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</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
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Add <CODE>/usr/local/lib</CODE> to <CODE>/etc/ld.so.conf</CODE> and run <CODE>ldconfig</CODE>.
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</TD><TR><TD COLSPAN=3> </TD><TR>
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<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
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Hmm, strange. When loading the mga_vid.o kernel module, I found this in the logs:<BR>
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<CODE>Warning: loading mga_vid.o will taint the kernel: no license</CODE>
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</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
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The latest kernel modutils require a flag indicating the license (mainly
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to avoid kernel hackers debugging closed source drivers).
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Upgrade your kernel, modutils and <B>MPlayer</B>.
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</TD><TR><TD COLSPAN=3> </TD><TR>
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<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
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When compiling <B>MEncoder</B>, it segfaults at linking!!!
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</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
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This is a linker problem. Upgrading binutils should help (2.11.92.* or newer
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should be good). Since it is not our fault, please do <B>not</B> report!
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</TD><TR><TD COLSPAN=3> </TD><TR>
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<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
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I'd like to compile <B>MPlayer</B> on Minix!
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</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
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Me too. :)
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</TD><TR><TD COLSPAN=3> </TD><TR>
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<TD COLSPAN=3><B><A NAME=5.2><FONT CLASS="text">5.2. General questions</A></B>
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</TD><TR><TD COLSPAN=3> </TD><TR>
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<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
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What about DVD playing?
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</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
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Read the CD/DVD section in <A HREF="cd-dvd.html">this document</A>.
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</TD><TR><TD COLSPAN=3> </TD><TR>
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<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
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The <CODE>-xy</CODE> or <CODE>-fs</CODE> option doesn't work with the x11 driver (<CODE>-vo x11</CODE>) ...
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</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
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It does, but you have to explicitly specify software scaling (it's SLOW!) with
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the <CODE>-zoom</CODE> option. You better use XF86VidMode support:
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you must specify the <CODE>-vm</CODE> and the <CODE>-fs</CODE> switch, and
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you're done. Make sure you have the right modelines in your XF86Config file, and
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try to make the <A HREF="video.html#2.3.1.3">DGA driver</A> and
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<A HREF="video.html#2.3.1.4">SDL's DGA driver</A> work for you.
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It's much faster. If SDL's DGA works, use that, it'll be EVEN faster!
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</TD><TR><TD COLSPAN=3> </TD><TR>
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<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
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What is the meaning of the numbers on the status line?
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</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
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Example: <CODE><FONT CLASS="text">A: 2.1 V: 2.2 A-V: -0.167 ct: 0.042 57/57 41% 0% 2.6% 0 4 49%</CODE><BR>
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<UL>
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<LI>A: audio position in seconds
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<LI>V: video position in seconds
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<LI>A-V: audio-video difference in seconds (delay)
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<LI>ct: total A-V sync correction done
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<LI>frames played (counting from last seek)
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<LI>frames decoded (counting from last seek)
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<LI>video codec cpu usage in percent (for slices and DR this includes video_out)
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<LI>video_out cpu usage
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<LI>audio codec cpu usage in percent
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<LI>frames needed to drop to maintain A-V sync
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<LI>current level of image postprocessing (when using <CODE>-autoq</CODE>)
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<LI>current cache size used (around 50% is normal)
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</UL>
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Most of them are for debug purposes and will be removed soon.
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</TD><TR><TD COLSPAN=3> </TD><TR>
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<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
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What if I don't want them to appear?
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</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
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Use the <CODE>-quiet</CODE> option and read the man page.
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</TD><TR><TD COLSPAN=3> </TD><TR>
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<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
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Why is video_out cpu usage zero (0%) for some files?
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</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
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It's not zero, but it's called from the codec and thus cannot be measured
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separately. You should try to play the file using <CODE>-vo null</CODE> and then
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<CODE>-vo ...</CODE> and check the difference to see the video_out speed.
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</TD><TR><TD COLSPAN=3> </TD><TR>
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<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
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There are error messages about file not found <CODE>/usr/lib/win32/</CODE> ...
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</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
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Download the <A HREF="ftp://ftp.mplayerhq.hu/MPlayer/releases/w32codec-0.60.tar.bz2">Win32 codecs</A>
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from <B>our</B> FTP site (avifile's codec package has a different DLL set) and
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install it.
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</TD><TR><TD COLSPAN=3> </TD><TR>
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<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
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Are there any mailing lists on MPlayer?
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</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
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Yes! See the bottom of the info page on
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<A HREF="http://www.mplayerhq.hu/homepage/info.html">our homepage</A> to subscribe!
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</TD><TR><TD COLSPAN=3> </TD><TR>
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<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
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I've found a nasty bug when I tried to play my favorite video!!
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Who should I inform?
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</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
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Please read the <A HREF="bugreports.html">bug reporting guidelines</A> and follow
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the instructions.
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</TD><TR><TD COLSPAN=3> </TD><TR>
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<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
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I have problems playing files with the ... codec. Can I use them?
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</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
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Check the <A HREF="http://www.mplayerhq.hu/DOCS/codecs-status.html">codec status</A>,
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if it doesn't contain your codec, read the
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<A HREF="codecs.html#2.1.3">codec documentation</A>, especially the
|
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<A HREF="codecs.html#2.2.3">codec importing HOWTO</A> and contact us.
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</TD><TR><TD COLSPAN=3> </TD><TR>
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|
|
<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
|
|
Umm, what is "IdegCounter"?
|
|
</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
|
|
A combination of a Hungarian and an English word. "Ideg" in Hungarian means
|
|
the same as "nerve" in English, and is pronounced as something like "ydaegh".
|
|
It was first used to measure the nervousness of A'rpi, after some (umm) "mystic"
|
|
disappearance of CVS code ;)
|
|
</TD><TR><TD COLSPAN=3> </TD><TR>
|
|
|
|
<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
|
|
And what is "Faszom(C)ounter"?
|
|
</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
|
|
"Fasz" is a Hungarian word you don't want to know, the others are connected to
|
|
the perverted minds of the MPlayer developers.
|
|
</TD><TR><TD COLSPAN=3> </TD><TR>
|
|
|
|
<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
|
|
LIRC doesn't work, because ...
|
|
</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
|
|
Are you sure you are using <CODE>mplayer</CODE> instead of <CODE>mplayer_lirc</CODE>?
|
|
Note that it was <CODE>mplayer_lirc</CODE> for long time, including the 0.60 release, but recently
|
|
changed back to <CODE>mplayer</CODE>.
|
|
</TD><TR><TD COLSPAN=3> </TD><TR>
|
|
|
|
<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
|
|
Subtitles are very nice, the most beautiful I've ever seen, but they slow
|
|
down playing! I know it's unlikely ...
|
|
</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
|
|
After running <CODE>./configure</CODE> , edit <CODE>config.h</CODE> and replace
|
|
<CODE>#undef FAST_OSD</CODE> with <CODE>#define FAST_OSD</CODE>. Then recompile.
|
|
</TD><TR><TD COLSPAN=3> </TD><TR>
|
|
|
|
<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
|
|
The OSD is flickering!
|
|
</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
|
|
You use a vo driver with single buffering (x11,xv). With xv,
|
|
use the <CODE>-double</CODE> option. Also try <CODE>-vf expand</CODE>
|
|
</TD><TR><TD COLSPAN=3> </TD><TR>
|
|
|
|
<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
|
|
What exactly is this libavcodec thing?
|
|
</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
|
|
See the <A HREF="codecs.html#2.2.1.2">FFmpeg section</A>.
|
|
</TD><TR><TD COLSPAN=3> </TD><TR>
|
|
|
|
<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
|
|
But configure tells me "Checking for libavcodec ... no"!
|
|
</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
|
|
You need to get libavcodec from FFmpeg's CVS. Read the instructions in
|
|
the <A HREF="codecs.html#2.2.1.2">FFmpeg section</A>.
|
|
</TD><TR><TD COLSPAN=3> </TD><TR>
|
|
|
|
<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
|
|
The GUI isn't usable with icewm, because a panel is over the movie!!
|
|
</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
|
|
Known problem with icewm. It is unsolvable from our side. In detail:
|
|
Icewm's taskbar overrides the GUI's window resize queries. If asked for a
|
|
resize to 800x600, icewm resizes the window to 800x(600-taskbar_size).
|
|
</TD><TR><TD COLSPAN=3> </TD><TR>
|
|
|
|
<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
|
|
I can't access the GUI menu. I press right click, but I can't access any
|
|
menu items!
|
|
</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
|
|
Are you using FVWM? Try the following:<BR>
|
|
Start -> Settings -> Configuration -> Base Configuration<BR>
|
|
Set "Use Applications position hints" to "Yes".
|
|
</TD><TR><TD COLSPAN=3> </TD><TR>
|
|
|
|
<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
|
|
How can I run MPlayer in the background?
|
|
</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
|
|
Use: <CODE>mplayer <options> <filename> < /dev/null &</CODE>
|
|
</TD><TR><TD COLSPAN=3> </TD><TR>
|
|
|
|
<TD COLSPAN=3>
|
|
<B><A NAME=5.3><FONT CLASS="text">5.3. File playing problems</A></B>
|
|
</TD><TR><TD COLSPAN=3> </TD><TR>
|
|
|
|
<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
|
|
... works with avifile/aviplay but doesn't with MPlayer.
|
|
</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
|
|
<B>MPlayer</B> != avifile.
|
|
The only common thing between these players is the Win32 DLL loader.
|
|
The codecs (DLL) set, synchronization, demultiplexing etc is totally
|
|
different and shouldn't be compared.
|
|
If something works with aviplay it doesn't mean that <B>MPlayer</B> will work
|
|
and vice versa.
|
|
</TD><TR><TD COLSPAN=3> </TD><TR>
|
|
|
|
<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
|
|
Audio goes out of sync playing a .avi file.
|
|
</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
|
|
Try the <CODE>-bps</CODE> or <CODE>-nobps</CODE> option. If it does not improve,
|
|
read <A HREF="bugreports.html">this</A> and upload the file to FTP.
|
|
</TD><TR><TD COLSPAN=3> </TD><TR>
|
|
|
|
<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
|
|
MPlayer exits with some error when using l3codeca.acm.
|
|
</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
|
|
Check <CODE>ldd /usr/local/bin/mplayer</CODE> output. If it contains<BR>
|
|
<CODE>libc.so.6 => /lib/libc.so.6 (0x4???????)</CODE><BR>
|
|
where "?" is any number then it's OK, the error is not here. If it is:<BR>
|
|
<CODE>libc.so.6 => /lib/libc.so.6 (0x00??????)</CODE><BR>
|
|
then there is a problem with your kernel/libc. Maybe you are using some
|
|
security patches (for example Solar Designer's OpenWall patch) which
|
|
forces loading libraries to very low addresses.
|
|
Because l3codeca.acm is a non-relocatable DLL, it must be loaded to
|
|
0x00400000, we can't change this. You should use a non-patched kernel,
|
|
or use <B>MPlayer</B>'s <CODE>-afm 1</CODE> option to disable using l3codeca.acm.
|
|
</TD><TR><TD COLSPAN=3> </TD><TR>
|
|
|
|
<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
|
|
My computer plays M$ DivX AVIs with resolutions ~ 640x300 and stereo mp3
|
|
sound too slow. When I use -nosound switch, everything is OK (but quiet).
|
|
</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
|
|
Your machine is too slow or your soundcard driver is broken. Consult the documentation to see if you can improve
|
|
performance.
|
|
</TD><TR><TD COLSPAN=3> </TD><TR>
|
|
|
|
<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
|
|
MPlayer dies with "MPlayer interrupted by signal 4 in module: decode_video".
|
|
</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
|
|
Try running <B>MPlayer</B> on the machine you compiled on. Or recompile. Don't
|
|
use <B>MPlayer</B> on a CPU different from the one it was compiled on.
|
|
</TD><TR><TD COLSPAN=3> </TD><TR>
|
|
|
|
<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
|
|
I have problems with [your window manager] and fullscreen xv/xmga/sdl/x11 modes ...
|
|
</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
|
|
Use the <CODE>-fsmode</CODE> switch. See example.conf or the man page.
|
|
</TD><TR><TD COLSPAN=3> </TD><TR>
|
|
|
|
<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
|
|
But it works with avifile!
|
|
</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
|
|
So what?
|
|
</TD><TR><TD COLSPAN=3> </TD><TR>
|
|
|
|
<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
|
|
Then avifile is better!
|
|
</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
|
|
Then use avifile, it has a nice GUI and nice C++ code :)
|
|
</TD><TR><TD COLSPAN=3> </TD><TR>
|
|
|
|
<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
|
|
I got this playing mpeg files: Can't find codec for video format 0x10000001!
|
|
</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
|
|
You have an old version of codecs.conf at <CODE>~/.mplayer/</CODE>. Upgrade it
|
|
from <CODE>/etc/</CODE>.<BR>
|
|
<B>OR</B> you have the <CODE>vc=</CODE> option or something similar in your
|
|
config file(s).
|
|
</TD><TR><TD COLSPAN=3> </TD><TR>
|
|
|
|
<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
|
|
After starting MPlayer under KDE(1/2) I just get a black screen and nothing
|
|
happens, after about one minute the video starts playing.
|
|
</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
|
|
The KDE arts sound daemon is blocking the sound device, either wait the time
|
|
until video starts or you disable the arts-daemon in kontrol center. If you want
|
|
to use arts sound, specify audio output via SDL (<CODE>ao=sdl</CODE>), and
|
|
make sure your SDL can handle arts sound. Yet another option is to start
|
|
<B>MPlayer</B> with artsdsp.
|
|
</TD><TR><TD COLSPAN=3> </TD><TR>
|
|
|
|
<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
|
|
I have an AVI that produces a gray screen when played with <CODE>-vc odivx</CODE>
|
|
and a green one with <CODE>-vc divx4</CODE>.
|
|
</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
|
|
It's not a DivX file, but an M$ MPEG4v3 . Update your codecs.conf.
|
|
</TD><TR><TD COLSPAN=3> </TD><TR>
|
|
|
|
<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
|
|
When I play this movie I get video-audio desync and/or MPlayer crashes with the following message:<BR>
|
|
<CODE>DEMUXER: Too many (945 in 8390980 bytes) video packets in the buffer!</CODE>
|
|
</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
|
|
This can have multiple reasons.<BR>
|
|
<UL>
|
|
<LI>Your CPU <B>and/or</B> video card <B>and/or</B> bus is too SLOW. <B>MPlayer</B>
|
|
displays a message if this is the case (and the dropped frames counter goes up fast).</LI>
|
|
<LI>If it is an AVI, maybe it has bad interleaving. Try the <CODE>-ni</CODE> option.</LI>
|
|
<LI>Your sound driver is buggy, or you use ALSA 0.5 with <CODE>-ao oss</CODE>.
|
|
See the <A HREF="sound.html">sound card section</A>.</LI>
|
|
<LI>The AVI has a bad header, try the <CODE>-nobps</CODE> option, and/or
|
|
<CODE>-mc 0</CODE>.</LI>
|
|
</UL>
|
|
</TD><TR><TD COLSPAN=3> </TD><TR>
|
|
|
|
<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
|
|
I have an MJPEG file which works with other players but displays only a black
|
|
image in MPlayer.
|
|
</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
|
|
Disable the Windows DLL in <CODE>codecs.conf</CODE>, or use the
|
|
<CODE>-vc ffmjpeg</CODE> option (compile MPlayer with libavcodec for this to work).
|
|
</TD><TR><TD COLSPAN=3> </TD><TR>
|
|
|
|
<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
|
|
When I try to grab from my tuner, it works, but colors are strange. It's OK
|
|
with other applications.
|
|
</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
|
|
Your card probably misreports its colorspace capacity. Try with YUY2 instead
|
|
of default YV12 (see the <A HREF="documentation.html#2.5">TV input documentation</A>).
|
|
</TD><TR><TD COLSPAN=3> </TD><TR>
|
|
|
|
<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
|
|
When I start playing, I get this message but everything seems fine:<BR>
|
|
<CODE>Linux RTC init: ioctl (rtc_pie_on): Permission denied</CODE>
|
|
</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
|
|
You need root privileges to use the new timing code. For details see the
|
|
<A HREF="documentation.html#1.3">installation section</A> of the documentation.
|
|
</TD><TR><TD COLSPAN=3> </TD><TR>
|
|
|
|
<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
|
|
I have A/V sync problems. Some of my AVIs play fine, but some play with
|
|
double speed!
|
|
</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
|
|
You have a buggy sound card/driver. Most likely it's fixed at 44100Hz, and
|
|
you try to play a file which has 22050Hz audio. Try the resample audio plugin.
|
|
</TD><TR><TD COLSPAN=3> </TD><TR>
|
|
|
|
<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
|
|
All the WMV (or other..) files I play create a green/gray window and there is
|
|
only sound! MPlayer prints:<BR>
|
|
<CODE>Detected video codec: [null] drv:0 (NULL codec (no decoding))</CODE>
|
|
</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
|
|
Update your <CODE>codecs.conf</CODE>.
|
|
</TD><TR><TD COLSPAN=3> </TD><TR>
|
|
|
|
<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
|
|
I get very strange percentage values (way too big) while playing files on my notebook.
|
|
</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
|
|
It's an effect of the power management / power saving system of your notebook
|
|
(BIOS, not kernel). Plug the external power connector in <b>before</b> you power on your
|
|
notebook.
|
|
</TD><TR><TD COLSPAN=3> </TD><TR>
|
|
|
|
<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
|
|
The audio/video gets totally out of sync when I run MPlayer as root on my notebook.
|
|
It works normal when i run it as a user.
|
|
</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
|
|
This is again a power management effect (see above). Plug the external power connector
|
|
in <b>before</b> you power on your notebook.
|
|
</TD><TR><TD COLSPAN=3> </TD><TR>
|
|
|
|
<TD COLSPAN=3>
|
|
<B><A NAME=5.4><FONT CLASS="text">5.4. Video/audio driver problems (vo/ao)</A></B>
|
|
</TD><TR><TD COLSPAN=3> </TD><TR>
|
|
|
|
|
|
<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
|
|
OK, <CODE>-vo help</CODE> shows DGA driver, but it complains about permissions!
|
|
Help me!
|
|
</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
|
|
It works only if running as root! It's a DGA limitation.
|
|
You should become root (<CODE>su -</CODE>), and try again.
|
|
Another solution is making <B>MPlayer</B> SUID root, but it's <B>NOT RECOMMENDED!</B><BR>
|
|
<CODE>chown root /usr/local/bin/mplayer</CODE><BR>
|
|
<CODE>chmod 755 /usr/local/bin/mplayer</CODE><BR>
|
|
<CODE>chmod +s /usr/local/bin/mplayer</CODE><BR>
|
|
<B>!!!! BUT STAY TUNED !!!!</B><BR>
|
|
This is a *BIG* security risk! *NEVER* do this on a server or on a computer
|
|
that you do not control completely because other users can gain root
|
|
privileges through SUID root MPlayer!!!<BR>
|
|
<B>!!!! SO YOU HAVE BEEN WARNED ... !!!!</B>
|
|
</TD><TR><TD COLSPAN=3> </TD><TR>
|
|
|
|
<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
|
|
When using Xvideo, my Voodoo 3/Banshee says:<BR>
|
|
<CODE>X Error of failed request: BadAccess (attempt to access private resource denied)<BR>
|
|
Major opcode of failed request: 147 (MIT-SHM)<BR>
|
|
Minor opcode of failed request: 1 (X_ShmAttach)<BR>
|
|
Serial number of failed request: 26<BR>
|
|
Current serial number in output stream:27</CODE><BR>
|
|
</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
|
|
The "tdfx" driver in XFree86 4.0.2/4.0.3 had this bug. This was solved by
|
|
<A HREF="http://www.xfree86.org/cvs/changes_4_1.html">bugfix #621 of the XFree86 4.1.0 CVS log</A>.
|
|
So upgrade to XFree86 4.1.0 or later. Alternatively, either download (at least)
|
|
DRI version 0.6 from the <A HREF="http://dri.sourceforge.net">DRI homepage</A>,
|
|
or use CVS DRI.
|
|
</TD><TR><TD COLSPAN=3> </TD><TR>
|
|
|
|
<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
|
|
When using Xvideo, I can't play DivX AVIs with my Voodoo 3/Banshee!
|
|
It says:<BR>
|
|
...<BR>
|
|
<CODE>Xvideo image format: 0x32315659 (YV12) planar<BR>
|
|
Xvideo image format: 0x30323449 (I420) planar<BR></CODE>
|
|
...
|
|
</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A1:</TD><TD><FONT CLASS="text">
|
|
See the previous answer.
|
|
</TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A2:</TD><TD><FONT CLASS="text">
|
|
Since 0.18pre4 we support libavcodec from the FFmpeg package. It contains
|
|
a C language DivX and OpenDivX decoder. The DivX decoder uses YV12 format
|
|
for output, thus it should work for you. Compile in libavcodec support.
|
|
</TD><TR><TD COLSPAN=3> </TD><TR>
|
|
|
|
<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
|
|
OpenGL (<CODE>-vo gl</CODE>) output doesn't work (hang/black window/X11 errors/...).
|
|
</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
|
|
Your OpenGL driver doesn't support dynamic texture changes (glTexSubImage).
|
|
It's known not to work with nVidia's binary mess.
|
|
It's known to work with Utah-GLX/DRI and Matrox G400 cards. Also with
|
|
DRI and Radeon cards. It won't work with DRI and other cards.
|
|
it will not work with 3DFX cards because of the 256x256 texture size limit.
|
|
</TD><TR><TD COLSPAN=3> </TD><TR>
|
|
|
|
<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
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I have an nVidia TNT/TNT2 card, and I have a band with strange colors,
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right under the movie! Whose fault is this?
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</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
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|
This is a bug of nVidia's binary X driver. These bugs appear ONLY with the
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TNT/TNT2 cards, and we can't do anything about it. To fix the problem, upgrade
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to the latest nVidia binary driver version. If still bad, complain to nVidia!
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</TD><TR><TD COLSPAN=3> </TD><TR>
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|
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<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
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I have an nVidia XYZ card, and when I click on the GUI's display window to toggle
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|
displaying the GUI panel, a black square appears where I clicked. I have
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the newest driver.
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</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
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Yes, nVidia corrected a previous bug (above), and introduced a new one. Let's
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congratulate them. UPDATE: According to
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<A HREF="users_against_developers.html#nvidia">nVidia</A>, this has already been
|
|
fixed.
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|
</TD><TR><TD COLSPAN=3> </TD><TR>
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|
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|
<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
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|
When I use the GUI with SDL video output, a second video window is created.
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|
</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
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|
Known, don't use SDL for the GUI yet.
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|
</TD><TR><TD COLSPAN=3> </TD><TR>
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|
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<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
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|
Oh the world is cruel ...! SDL has only <CODE>x11</CODE> target, but not
|
|
<CODE>xv</CODE>!
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|
</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
|
|
Try that <CODE>x11</CODE> target again. Now try <CODE>-vo x11 -fs -zoom</CODE>.
|
|
See the difference? No?! OK, here comes the enlightenment: SDL's
|
|
<CODE>x11</CODE> target uses xv when available, you don't have to worry about
|
|
it ... Note: you can force/disable Xv via SDL using <CODE>-forcexv<CODE> and <CODE>-noxv</CODE>
|
|
</TD><TR><TD COLSPAN=3> </TD><TR>
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|
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|
<TD COLSPAN=3>
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<B><A NAME=5.5><FONT CLASS="text">5.5. Feature requests</A></B>
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|
</TD><TR><TD COLSPAN=3> </TD><TR>
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|
|
|
<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
|
|
Is there a hint on how to watch RealMedia movies in MPlayer?
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|
</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
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|
There's no way to do it. Therefore this format deserves to die in flames.
|
|
Theoretically you can reverse engineer Real codecs built for Linux (they
|
|
are available as .so files), but in practice that's really difficult, even
|
|
if you know how the compiler used by Real is making assembler code.
|
|
</TD><TR><TD COLSPAN=3> </TD><TR>
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|
|
|
<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
|
|
I'd like to seek +/- 1 frames instead of 10 seconds.
|
|
</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
|
|
This won't be done. It was, but then it messed up A/V sync. Feel free to
|
|
implement it, and send a patch. Don't ask for it.
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|
</TD><TR><TD COLSPAN=3> </TD><TR>
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|
|
|
<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
|
|
Where is the Windows version?
|
|
</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
|
|
It's not released, and won't be. Look around the Windows scene (open source
|
|
ASF parsers, open source ASF encoders, etc) and you'll know why. We don't
|
|
want to go to jail.
|
|
</TD><TR><TD COLSPAN=3> </TD><TR>
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|
|
|
|
|
<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
|
|
What card do you suggest me to buy?
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|
</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A0:</TD><TD><FONT CLASS="text">
|
|
It's for your information only but our criteria are:
|
|
</TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A1:</TD><TD><FONT CLASS="text">
|
|
Speed:<BR>
|
|
This parameter can be computed easily:
|
|
<OL>
|
|
<LI>Which movies do you plan to watch?</LI>
|
|
<UL>
|
|
<LI><B>MPEG1:</B> 320x200@32=256000<BR>
|
|
You need only 256*25fps=6.4MB/sec of bandwidth (This format can be played
|
|
in real-time on any PC since the times of Pentium-100 + S3Virge).</LI>
|
|
<LI><B>MPEG4:</B> 640x480@32=1228800<BR>
|
|
You need a video bandwidth of 1.2*25fps=30MB/sec. To watch such a movie
|
|
in real-time you need a PC equivalent to a Celeron-450 and a DIMM based
|
|
video card.</LI>
|
|
<LI><B>MPEG2 (aka DVD or SDTV):</B> 1024x768@32=3145728<BR>
|
|
You need a video bandwidth of 3*30fps=90MB/sec. In extreme cases (if your
|
|
video card supports IDCT decoding) the hardware requirements are the same
|
|
as for MPEG4.</LI>
|
|
<LI><B>HDTV (High Definition TeleVision):</B> 2000x2000@32=16000000<BR>
|
|
You need a video bandwidth of 16*30fps=480MB/sec. You also need at least
|
|
32MB of video memory to watch this stream: 16MB for the RGB area and 16MB
|
|
for the YUV area.</LI>
|
|
</UL>
|
|
<LI>The bandwidth of PCI slots is: 33MHz*32Bit=133MB/sec. PCI2.1 has
|
|
66MHz*32Bit=266MB/sec which is more than enough for playing any movie (except
|
|
HDTV streams which really require an AGP bus).</LI>
|
|
<LI>What memory type should be installed on the video card:
|
|
<UL>
|
|
<LI><B>SIMM</B> - Avoid that.</LI>
|
|
<LI><B>DIMM</B> - Good if your video card has 128-bit memory access.</LI>
|
|
<LI><B>DDR</B> - Is fast enough for all types.</LI>
|
|
</UL>
|
|
</OL>
|
|
Note: DGA comparison shows that there is no visible difference between video
|
|
cards which have the same type of video memory installed.<BR>
|
|
<B>Conclusion:</B> If you have enough CPU power (Celeron-450 or K6-2-500) it
|
|
should be enough to buy any video card which has at least 8MB of DIMM or DDR
|
|
memory.
|
|
</TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A2:</TD><TD><FONT CLASS="text">
|
|
Quality:<BR>
|
|
This question was investigated in depth at:
|
|
<br><a href="http://www.anandtech.com/showdoc.html?i=1332&rndr=04132002115140">
|
|
AnandTech</a> - Video Card Roundup - DVD Quality, Features & Performance
|
|
(October 2000)
|
|
</TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A3:</TD><TD><FONT CLASS="text">
|
|
<B>Working</B> features under Linux:<BR>
|
|
If you are a Win32 user then probably you have support (from driver and DirectX8
|
|
side) for any feature your chip has.<BR>
|
|
But for <B>Linux</B> users there are currently only a few vendors which have more
|
|
or less advanced driver support:<BR><BR>
|
|
|
|
<table BORDER=1 COLS=5 WIDTH="100%">
|
|
<tr>
|
|
<td> </td>
|
|
|
|
<td>
|
|
<center>Matrox Gxxx</center>
|
|
</td>
|
|
|
|
<td>
|
|
<center>ATI m64/r128/radeon</center>
|
|
</td>
|
|
|
|
<td>
|
|
<center>nVidia tnt/geforce</center>
|
|
</td>
|
|
|
|
<td>
|
|
<center>S3 Virge/Savage</center>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td>Driver's provider</td>
|
|
|
|
<td>OEM and enthusiasts</td>
|
|
|
|
<td>OEM and enthusiasts</td>
|
|
|
|
<td>OEM or enthusiasts</td>
|
|
|
|
<td>enthusiasts</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td>Driver's quality</td>
|
|
|
|
<td>best (X11,kernel)</td>
|
|
|
|
<td>best (X11,GATOS,kernel)</td>
|
|
|
|
<td>buggy/unstable (X11 only)</td>
|
|
|
|
<td>slow (X11 only)</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td>VIDEO OVERLAY</td>
|
|
|
|
<td></td>
|
|
|
|
<td></td>
|
|
|
|
<td></td>
|
|
|
|
<td></td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td>BES and YV2RGB</td>
|
|
|
|
<td>YES</td>
|
|
|
|
<td>YES</td>
|
|
|
|
<td>YES</td>
|
|
|
|
<td>YES</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td>scaling filters</td>
|
|
|
|
<td>N/A</td>
|
|
|
|
<td>YES</td>
|
|
|
|
<td>N/A</td>
|
|
|
|
<td>N/A</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td>adaptive deinterlace</td>
|
|
|
|
<td>N/A</td>
|
|
|
|
<td>YES</td>
|
|
|
|
<td>N/A</td>
|
|
|
|
<td>N/A</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td>Video equalizer (hue, contrast, saturation, color correction)</td>
|
|
|
|
<td>YES</td>
|
|
|
|
<td>YES</td>
|
|
|
|
<td>GeForce only</td>
|
|
|
|
<td>N/A</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td>Alpha blending, color and video keys</td>
|
|
|
|
<td>PARTIAL</td>
|
|
|
|
<td>PARTIAL (under development)</td>
|
|
|
|
<td>N/A</td>
|
|
|
|
<td>N/A</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td>Video capture</td>
|
|
|
|
<td>YES (Marvel)</td>
|
|
|
|
<td>YES (GATOS)</td>
|
|
|
|
<td>N/A</td>
|
|
|
|
<td>N/A</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td>TV-out</td>
|
|
|
|
<td>G400 only</td>
|
|
|
|
<td>YES</td>
|
|
|
|
<td>N/A</td>
|
|
|
|
<td>N/A</td>
|
|
</tr>
|
|
</table>
|
|
|
|
<P>It's a very rough overview of video cards. We should pay attention to video
|
|
card models. If for example Matrox G400 drivers support TV-out then G450 and
|
|
G550 do not necessarily have this feature.<BR>
|
|
Another example: Adaptive deinterlacing exists only for the Rage128 chip and
|
|
isn't present on Mach64+ ones. The same goes for 3D features. They are different
|
|
from Mach64 to the Radeon 8500 with TRUFORM technology.</P>
|
|
|
|
<P><B>ANYWAY - THE MPLAYER TEAM DOESN'T ACCEPT ANY CLAIMS IF AFTER READING THIS
|
|
MATERIAL YOU BUY A CARD WHICH IS UNSATISFACTORY FOR YOU!!! THIS IS ONLY OUR
|
|
POINT OF VIEW.</B></P>
|
|
|
|
<P><B>Q:</B> If a PCI slot is fast enough for most types of movies then why is
|
|
the S3 Virge too slow for them?<BR>
|
|
<B>A:</B> Due to its SIMM memory.</P>
|
|
|
|
</TD><TR><TD COLSPAN=3> </TD><TR>
|
|
|
|
<TD COLSPAN=3>
|
|
<B><A NAME=5.6><FONT CLASS="text">5.6. Encoding</A></B>
|
|
</TD><TR><TD COLSPAN=3> </TD><TR>
|
|
|
|
<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
|
|
How can I encode?
|
|
</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
|
|
Read the <B>MEncoder</B> <A HREF="encoding.html">documentation</A>.
|
|
</TD><TR><TD COLSPAN=3> </TD><TR>
|
|
|
|
<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
|
|
My tuner works, I can hear the sound and watch the video with MPlayer, but
|
|
MEncoder doesn't encode audio!
|
|
</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
|
|
TV audio encoding for Linux is currently unimplemented, we're working on it.
|
|
At the moment it works only on BSD.
|
|
</TD><TR><TD COLSPAN=3> </TD><TR>
|
|
|
|
<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
|
|
I can't encode DVD subtitles into the AVI!
|
|
</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
|
|
You have to specify the <CODE>-sid</CODE> option correctly!
|
|
</TD><TR><TD COLSPAN=3> </TD><TR>
|
|
|
|
<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
|
|
MEncoder segfaults on startup!
|
|
</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
|
|
Upgrade DivX4Linux.
|
|
</TD><TR><TD COLSPAN=3> </TD><TR>
|
|
|
|
<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
|
|
How can I encode only selected chapters from a DVD?
|
|
</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
|
|
Use the <CODE>-chapter</CODE> option correctly, like: <CODE>-chapter 5-7</CODE>
|
|
</TD><TR><TD COLSPAN=3> </TD><TR>
|
|
|
|
<TD></TD><TD VALIGN=top><FONT CLASS="text">Q:</TD><TD WIDTH=100%><B><FONT CLASS="text">
|
|
I'm trying to work with 2GB+ files on a VFAT file system. Does it work?
|
|
</B></TD><TR><TD></TD><TD VALIGN=top><FONT CLASS="text">A:</TD><TD><FONT CLASS="text">
|
|
No, VFAT doesn't support 2GB+ files.
|
|
</TD><TR><TD COLSPAN=3> </TD>
|
|
|
|
</TABLE>
|
|
|
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|
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|