mirror of
https://github.com/mpv-player/mpv
synced 2024-12-16 20:05:07 +00:00
bbde5b8f1a
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@9678 b3059339-0415-0410-9bf9-f77b7e298cf2
1107 lines
38 KiB
XML
1107 lines
38 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
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<chapter id="faq" xreflabel="FAQ">
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<title>Frequently Asked Questions</title>
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<qandaset defaultlabel="number">
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<qandadiv id="faq-compilation">
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<title>Compilation</title>
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<qandaentry>
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<question><para>
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Compilation stops with an error message similar to this one:
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<screen>
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In file included from mplayer.c:34:
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mw.h: In function `mplMainDraw':
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mw.h:209: Internal compiler error in print_rtl_and_abort, at flow.c:6458
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Please submit a full bug report,
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with preprocessed source if appropriate.
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</screen>
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</para></question>
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<answer><para>
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This is a known problem of <application>gcc</application> 3.0.4, upgrade
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to 3.1 to solve the problem. How to install gcc is described in the
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<link linkend="gcc-296">gcc 2.96</link> section.
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</para></answer>
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</qandaentry>
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<qandaentry>
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<question><para>
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Configure ends with this text, and MPlayer won't compile!
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<screen>Your gcc does not support even i386 for '-march' and '-mcpu'</screen>
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</para></question>
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<answer><para>
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Your gcc isn't installed correctly, check the <filename>config.log</filename>
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file for details.
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</para></answer>
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</qandaentry>
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<qandaentry>
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<question><para>
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What does "No such file or directory" mean?
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</para></question>
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<answer><para>
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Probably there is no such file or directory.
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</para></answer>
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</qandaentry>
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<qandaentry>
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<question><para>
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What's the problem with gcc 2.96?
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</para></question>
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<answer><para>
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<emphasis role="bold">We strongly discourage the use of gcc 2.96!</emphasis>
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Read <link linkend="gcc-296">this</link> document for details about why Red Hat
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released gcc 2.96 and what the problems are all about. If you still really really
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want to use it, be sure to get the latest release and give the
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<option>--disable-gcc-checking</option> option to configure. Remember that you
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are on your own from this point. Do <emphasis role="bold">not</emphasis> report
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bugs, do <emphasis role="bold">not</emphasis> ask for help on the mailing lists.
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We will <emphasis role="bold">not</emphasis> provide any support in case you run
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into problems.
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</para></answer>
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</qandaentry>
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<qandaentry>
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<question><para>
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Great, I have gcc 3.0.1 from Red Hat/Mandrake, then I'm fine!
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</para></question>
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<answer><para>
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No, since there have been/are issues with these compilers as well.
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To check the status of current compilers' MPlayer support, see the
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<link linkend="install">Installation</link> section.
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</para></answer>
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</qandaentry>
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<qandaentry>
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<question><para>
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I tried to compile MPlayer, but I got this output:
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<screen>
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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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</screen>
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</para></question>
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<answer><para>
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Upgrade your glibc to the latest release. On Mandrake, use 2.2.4-8mdk.
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</para></answer>
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</qandaentry>
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<qandaentry>
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<question><para>
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.. gcc 2.96 ... (Yes, some people are STILL flaming about gcc 2.96!)
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</para></question>
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<answer><para>
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Quoted from a <ulink url="http://www.mplayerhq.hu/pipermail/mplayer-users/2001-October/005351.html">mail</ulink>
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A'rpi sent to the <ulink url="http://mplayerhq.hu/pipermail/mplayer-users/">mplayer-users</ulink>
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list (the word 'ideg' is described below):
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<blockquote>
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<para>
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And we have idegs. And our idegcounter overflowed again and again.
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</para>
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<para>
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Unfortunately MPlayer is out of our control. It's used by lamers, Linux
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users who can't even use Windows, and never tried to compile a kernel. They
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installed (with default options) Mandrake or Red Hat or SuSE, and without
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RTFM'ing they send messages saying 'it doesn't work! help me! please! i'm
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new to Linux! help! oh! help me!'. We can't stop them, but at least we try
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to force them to RTFM and to read the messages of ./configure and MPlayer.
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</para>
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<para>
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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.
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</para>
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<para>
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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.
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</para>
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<para>
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And there is a balance. On the one side are you, clever guys, saying we
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are very bad because we don't like buggy gcc 2.96, and on the other side
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there are the 'new to Linux' guys who are showing us gcc 2.96 is buggy.
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</para>
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<para>
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Conclusion: We can't be good. Half the people will always say we are bad.
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</para>
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<para>
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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 development
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could go faster, and we could earn lots of money with it and buy a big house,
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etc etc. Do you really want it? It seems.
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</para>
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</blockquote>
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</para></answer>
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</qandaentry>
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<qandaentry>
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<question><para>
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SDL output doesn't work or compile. The problem is ...
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</para></question>
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<answer><para>
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It was tested to work with SDL 1.2.x and may run on SDL 1.1.7+. It does
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<emphasis role="bold">not</emphasis> work with any previous version. So
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if you choose to use such a version, you are on your own.
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</para></answer>
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</qandaentry>
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<qandaentry>
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<question><para>
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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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</para></question>
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<answer><para>
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Where did you install the SDL library? If you installed in <filename>/usr/local</filename>
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(the default) then edit the top level <filename>config.mak</filename> and add
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"-L/usr/local/lib" after "X_LIBS=". Now type
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<command>make</command>. You're done!
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</para></answer>
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</qandaentry>
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<qandaentry>
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<question><para>
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It doesn't compile, and it misses uint64_t inttypes.h and similar things ...
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</para></question>
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<answer><para>
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Copy <filename>etc/inttypes.h</filename> to the MPlayer directory
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(<command>cp etc/inttypes.h .</command>) and try again ...
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</para></answer>
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</qandaentry>
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<qandaentry>
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<question><para>
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I have Linux running on a Pentium III but <filename>./configure</filename>
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doesn't detect SSE ...
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</para></question>
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<answer><para>
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Only kernel versions 2.4.x support SSE (or try 2.2.19 or newer, but be
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prepared for problems).
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</para></answer>
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</qandaentry>
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<qandaentry>
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<question><para>
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I have a G200/G400, how do I compile/use the mga_vid driver?
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</para></question>
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<answer><para>
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Read the <link linkend="mga_vid">mga_vid documentation</link>.
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</para></answer>
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</qandaentry>
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<qandaentry>
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<question><para>
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Are there rpm/deb/... packages of MPlayer?
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</para></question>
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<answer><para>
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You can make a .deb package for yourself, check the
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<link linkend="debian">Debian packaging</link> section. There are links to
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official Red Hat RPM packages available on our
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<ulink url="http://www.mplayerhq.hu/homepage/dload.html">download page</ulink>.
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</para></answer>
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</qandaentry>
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<qandaentry>
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<question><para>
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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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</para></question>
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<answer><para>
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... but you don't have the X development package installed. Or not correctly.
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It's called <filename>XFree86-devel*</filename> under Red Hat, and
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<filename>xlibs-dev</filename> under Debian. Also check if the
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<filename class="directory">/usr/X11</filename> and
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<filename class="directory">/usr/include/X11</filename> symlinks exist (this
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can be a problem on Mandrake systems). They can be created with these commands:
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<screen>
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$ ln -sf /usr/X11R6 /usr/X11
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$ ln -sf /usr/X11R6/include/X11 /usr/include/X11
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</screen>
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Your distribution may differ from the
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<ulink url="http://www.pathname.com/fhs/">Filesystem Hierarchy Standard</ulink>.
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</para></answer>
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</qandaentry>
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<qandaentry>
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<question><para>
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I can't compile SVGAlib. I'm using kernel 2.3/2.4 ...
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</para></question>
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<answer><para>
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You have to edit SVGAlib's <filename>Makefile.cfg</filename> and comment
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<systemitem>BACKGROUND = y</systemitem> out.
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</para></answer>
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</qandaentry>
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<qandaentry>
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<question><para>
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I compiled MPlayer with libdvdcss/libdivxdecore support, but when I try to start it, it says:
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<screen>
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error while loading shared libraries: lib*.so.0: cannot load shared object file: No such file or directory
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</screen>
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I checked up on the file and it IS there in <filename class="directory">/usr/local/lib</filename> ...
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</para></question>
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<answer><para>
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Add <filename class="directory">/usr/local/lib</filename> to <filename>/etc/ld.so.conf</filename>
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and run <command>ldconfig</command>.
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</para></answer>
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</qandaentry>
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<qandaentry>
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<question><para>
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Hmm, strange. When loading the <filename>mga_vid.o</filename> kernel module, I
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found this in the logs:
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<programlisting>
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Warning: loading mga_vid.o will taint the kernel: no license
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</programlisting>
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</para></question>
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<answer><para>
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The latest kernel modutils require a flag indicating the license (mainly to avoid
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kernel hackers debugging closed source drivers). Upgrade your kernel, modutils
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and <application>MPlayer</application>.
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</para></answer>
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</qandaentry>
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<qandaentry>
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<question><para>
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When compiling <application>MEncoder</application>, it segfaults at linking!
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</para></question>
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<answer><para>
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This is a linker problem. Upgrading binutils should help (2.11.92.*
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or newer should be good). Since it is not our fault, please do
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<emphasis role="bold">not</emphasis> report!
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</para></answer>
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</qandaentry>
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<qandaentry>
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<question><para>
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MPlayer dies with segmentation fault upon pthread check!
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</para></question>
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<answer><para>
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<command>chmod 644 /usr/lib/libc.so</command>
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</para></answer>
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</qandaentry>
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<qandaentry>
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<question><para>
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I'd like to compile <application>MPlayer</application> on Minix!
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</para></question>
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<answer><para>
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Me too. :)
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</para></answer>
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</qandaentry>
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</qandadiv>
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<qandadiv id="faq-general">
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<title>General questions</title>
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<qandaentry>
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<question><para>
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How do I create a proper patch for MPlayer?
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</para></question>
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<answer><para>
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We made a <ulink url="../../tech/patches.txt">short document</ulink>
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describing all the necessary details. Please follow the instructions.
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</para></answer>
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</qandaentry>
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<qandaentry>
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<question><para>
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How can I support MPlayer development?
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</para></question>
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<answer><para>
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We are more than happy to accept your hardware and software
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<ulink url="http://www.mplayerhq.hu/homepage/donations.html">donations</ulink>.
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They help us in continuously improving MPlayer.
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</para></answer>
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</qandaentry>
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<qandaentry>
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<question><para>
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How can I become an MPlayer developer?
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</para></question>
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<answer><para>
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We always welcome coders and documenters. Read the
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<ulink url="../../tech/">technical documentation</ulink>
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to get a first grasp. Then you should subscribe to the
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<ulink url="http://mplayerhq.hu/mailman/listinfo/mplayer-dev-eng">mplayer-dev-eng</ulink>
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mailing list and start coding.
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</para></answer>
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</qandaentry>
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|
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<qandaentry>
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<question><para>
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Can I run multiple instances of MPlayer?
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</para></question>
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<answer><para>
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Yes. Some video out drivers like xv, dga or (x)mga are exclusive, some are
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exclusive in combination with certain graphics boards and drivers. You will
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not be able to run more than one instance of MPlayer with one of those video
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out drivers. To a lesser degree this also applies to audio drivers. Not all
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allow playback of multiple streams on the same device.
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</para></answer>
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</qandaentry>
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<qandaentry>
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<question><para>
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There is a timer in the upper left corner. How can I get rid of it?
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</para></question>
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<answer><para>
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Press <keycap>o</keycap> and try the <option>-osdlevel</option> option.
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</para></answer>
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</qandaentry>
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|
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<qandaentry>
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<question><para>
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The <option>-xy</option> or <option>-fs</option> option doesn't work with
|
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the x11 driver (<option>-vo x11</option>) ...
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</para></question>
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<answer><para>
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It does, but you have to explicitly specify software scaling (very slow) with the
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<option>-zoom</option> option. You better use XF86VidMode support: You must
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specify the <option>-vm</option> and the <option>-fs</option> option, and you're
|
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done. Make sure you have the right modelines in your <filename>XF86Config</filename>
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file, and try to make the <link linkend="dga">DGA driver</link> and
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<link linkend="sdl">SDL's DGA driver</link> work for you. It's much
|
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faster. If SDL's DGA works, use that, it'll be even faster.
|
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</para></answer>
|
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</qandaentry>
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|
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<qandaentry>
|
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<question><para>
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What is the meaning of the numbers on the status line?
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</para></question>
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<answer><para>
|
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Example:
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<screen>A: 2.1 V: 2.2 A-V: -0.167 ct: 0.042 57/57 41% 0% 2.6% 0 4 49%</screen>
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<itemizedlist>
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<listitem><para>A: audio position in seconds</para></listitem>
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<listitem><para>V: video position in seconds</para></listitem>
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<listitem><para>A-V: audio-video difference in seconds (delay)</para></listitem>
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<listitem><para>ct: total A-V sync correction done</para></listitem>
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<listitem><para>frames played (counting from last seek)</para></listitem>
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<listitem><para>frames decoded (counting from last seek)</para></listitem>
|
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<listitem><para>video codec cpu usage in percent (for slices and DR this includes
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video_out)</para></listitem>
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<listitem><para>video_out cpu usage</para></listitem>
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<listitem><para>audio codec cpu usage in percent</para></listitem>
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<listitem><para>frames needed to drop to maintain A-V sync</para></listitem>
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<listitem><para>current level of image postprocessing (when using
|
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<option>-autoq</option>)</para></listitem>
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<listitem><para>current cache size used (around 50% is normal)</para></listitem>
|
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</itemizedlist>
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Most of them are for debug purposes and will be removed at some point.
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</para></answer>
|
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</qandaentry>
|
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|
|
<qandaentry>
|
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<question><para>
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What if I don't want them to appear?
|
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</para></question>
|
|
<answer><para>
|
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Use the <option>-quiet</option> option and read the man page.
|
|
</para></answer>
|
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</qandaentry>
|
|
|
|
<qandaentry>
|
|
<question><para>
|
|
Why is video_out cpu usage zero (0%) for some files?
|
|
</para></question>
|
|
<answer><para>
|
|
It's not zero, but it's called from the codec and thus cannot be measured
|
|
separately. You should try to play the file using <option>-vo null</option> and
|
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then <option>-vo ...</option> and check the difference to see the video_out speed.
|
|
</para></answer>
|
|
<answer><para>
|
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You are using Direct Rendering, where the codec renders to the video memory
|
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itself. In this case, the decoding percentage contains the display percentage, too.
|
|
</para></answer>
|
|
</qandaentry>
|
|
|
|
<qandaentry>
|
|
<question><para>
|
|
There are error messages about file not found <filename>/usr/lib/win32/</filename> ...
|
|
</para></question>
|
|
<answer><para>
|
|
Download the Win32 codecs from our
|
|
<ulink url="http://www.mplayerhq.hu/MPlayer/releases/codecs/">codecs page</ulink>
|
|
(avifile's codec package has a different DLL set) and install it.
|
|
</para></answer>
|
|
</qandaentry>
|
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|
|
<qandaentry>
|
|
<question><para>
|
|
Are there any mailing lists on MPlayer?
|
|
</para></question>
|
|
<answer><para>
|
|
Yes. See the bottom of the info page on
|
|
<ulink url="http://www.mplayerhq.hu/homepage/info.html">our homepage</ulink>
|
|
to subscribe.
|
|
</para></answer>
|
|
</qandaentry>
|
|
|
|
<qandaentry>
|
|
<question><para>
|
|
I've found a nasty bug when I tried to play my favorite video! Who should I inform?
|
|
</para></question>
|
|
<answer><para>
|
|
Please read the
|
|
<ulink url="http://www.mplayerhq.hu/DOCS/bugreports.html">bug reporting guidelines</ulink>
|
|
and follow the instructions.
|
|
</para></answer>
|
|
</qandaentry>
|
|
|
|
<qandaentry>
|
|
<question><para>
|
|
I have problems playing files with the ... codec. Can I use them?
|
|
</para></question>
|
|
<answer><para>
|
|
Check the <ulink url="http://www.mplayerhq.hu/DOCS/codecs-status.html">codec status</ulink>,
|
|
if it doesn't contain your codec, read the <link linkend="codecs">codec documentation</link>,
|
|
especially the <link linkend="win32-codecs">codec importing HOWTO</link> and contact us.
|
|
</para></answer>
|
|
</qandaentry>
|
|
|
|
<qandaentry>
|
|
<question><para>
|
|
Umm, what is "IdegCounter"?
|
|
</para></question>
|
|
<answer><para>
|
|
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
|
|
quot;ydaegh". It was first used to measure the nervousness of A'rpi, after
|
|
some (umm) "mysterious" disappearance of CVS code ;)
|
|
</para></answer>
|
|
</qandaentry>
|
|
|
|
<qandaentry>
|
|
<question><para>
|
|
And what is "Faszom(C)ounter"
|
|
</para></question>
|
|
<answer><para>
|
|
"Fasz" is a Hungarian word you don't want to know, the others are
|
|
connected to the perverted minds of the MPlayer developers.
|
|
</para></answer>
|
|
</qandaentry>
|
|
|
|
<qandaentry>
|
|
<question><para>
|
|
LIRC doesn't work, because ...
|
|
</para></question>
|
|
<answer><para>
|
|
Are you sure you are using <command>mplayer</command> instead of
|
|
<command>mplayer_lirc</command>? Note that it was <command>mplayer_lirc</command>
|
|
for a long time, including the 0.60 release, but it was recently changed back to
|
|
<command>mplayer</command>.
|
|
</para></answer>
|
|
</qandaentry>
|
|
|
|
<qandaentry>
|
|
<question><para>
|
|
Subtitles are very nice, the most beautiful I've ever seen, but they
|
|
slow down playing! I know it's unlikely ...
|
|
</para></question>
|
|
<answer><para>
|
|
After running <filename>./configure</filename>, edit <filename>config.h</filename>
|
|
and replace <systemitem>#undef FAST_OSD</systemitem> with
|
|
<systemitem>#define FAST_OSD</systemitem>. Then recompile.
|
|
</para></answer>
|
|
</qandaentry>
|
|
|
|
<qandaentry>
|
|
<question><para>
|
|
The onscreen display (OSD) is flickering!
|
|
</para></question>
|
|
<answer><para>
|
|
You use a vo driver with single buffering (x11,xv). With xv, use the
|
|
<option>-double</option> option. Also try <option>-vf expand</option>.
|
|
</para></answer>
|
|
</qandaentry>
|
|
|
|
<qandaentry>
|
|
<question><para>
|
|
What exactly is this libavcodec thing?
|
|
</para></question>
|
|
<answer><para>
|
|
|
|
</para></answer>
|
|
</qandaentry>
|
|
|
|
<qandaentry>
|
|
<question><para>
|
|
But configure tells me "Checking for libavcodec ... no"!
|
|
</para></question>
|
|
<answer><para>
|
|
See the <link linkend="ffmpeg">libavcodec section</link>.
|
|
</para></answer>
|
|
</qandaentry>
|
|
|
|
<qandaentry>
|
|
<question><para>
|
|
Icewm's taskbar keeps covering the movie in fullscreen mode!
|
|
</para></question>
|
|
<answer><para>
|
|
You need to get libavcodec from FFmpeg's CVS. Read the instructions in the
|
|
<link linkend="ffmpeg">libavcodec section</link>.
|
|
</para></answer>
|
|
</qandaentry>
|
|
|
|
<qandaentry>
|
|
<question><para>
|
|
I can't access the GUI menu. I press right click, but I can't
|
|
access any menu items!
|
|
</para></question>
|
|
<answer><para>
|
|
This shouldn't happen anymore, if it still does use the <option>-fstype</option>
|
|
layer option and report it to the <ulink url="http://mplayerhq.hu/pipermail/mplayer-users/">mplayer-users</ulink>
|
|
mailing list.
|
|
</para></answer>
|
|
</qandaentry>
|
|
|
|
<qandaentry>
|
|
<question><para>
|
|
How can I run MPlayer in the background?
|
|
</para></question>
|
|
<answer><para>
|
|
Use:
|
|
<screen>mplayer <replaceable>options</replaceable> <replaceable>filename</replaceable> < /dev/null &</screen>
|
|
</para></answer>
|
|
</qandaentry>
|
|
</qandadiv>
|
|
|
|
<qandadiv id="faq-playback">
|
|
<title>Playback problems</title>
|
|
<qandaentry>
|
|
<question><para>
|
|
I can play certain AVIs but I get no sound and this kind of error:
|
|
<screen>
|
|
Detected audio codec: [divx] afm:4 (DivX audio (WMA))
|
|
Requested audio codec family [divx] (afm=4) not available (enable it at
|
|
compile time!)
|
|
</screen>
|
|
</para></question>
|
|
<answer><para>
|
|
Probably the audio uses a codec not natively supported by MPlayer. Install the
|
|
Win32 codec package as described in the README or in the
|
|
<link linkend="install">Installation</link> section.
|
|
</para></answer>
|
|
</qandaentry>
|
|
<qandaentry>
|
|
<question><para>
|
|
... works with avifile/aviplay but doesn't with <application>MPlayer</application>.
|
|
</para></question>
|
|
<answer><para>
|
|
MPlayer is not 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 MPlayer will work and vice versa.
|
|
</para></answer>
|
|
</qandaentry>
|
|
<qandaentry>
|
|
<question><para>
|
|
Audio goes out of sync playing an AVI file.
|
|
</para></question>
|
|
<answer><para>
|
|
Try the <option>-bps</option> or <option>-nobps</option> option. If it does not
|
|
improve, read <link linkend="bugreports">this</link> and upload the file to FTP.
|
|
</para></answer>
|
|
</qandaentry>
|
|
<qandaentry>
|
|
<question><para>
|
|
<application>MPlayer</application> exits with some error when using <filename>l3codeca.acm</filename>.
|
|
</para></question>
|
|
<answer><para>
|
|
Check <command>ldd /usr/local/bin/mplayer</command> output. If it contains
|
|
<screen>libc.so.6 => /lib/libc.so.6 (0x4???????)</screen>
|
|
where "?" is any number then it's OK, the error is not here. If it is:
|
|
<screen>libc.so.6 => /lib/libc.so.6 (0x00??????)</screen>
|
|
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 <filename>l3codeca.acm</filename> is a
|
|
non-relocatable DLL, it must be loaded to <literal>0x00400000</literal>, we can't
|
|
change this. You should use a non-patched kernel, or use MPlayer's
|
|
<option>-afm 1</option> option to disable using <filename>l3codeca.acm</filename>.
|
|
</para></answer>
|
|
</qandaentry>
|
|
<qandaentry>
|
|
<question><para>
|
|
My computer plays MS DivX AVIs with resolutions ~ 640x300 and stereo mp3 sound
|
|
too slow. When I use <option>-nosound</option> option, everything is OK (but quiet).
|
|
</para></question>
|
|
<answer><para>
|
|
Your machine is too slow or your soundcard driver is broken. Consult the
|
|
documentation to see if you can improve performance.
|
|
</para></answer>
|
|
</qandaentry>
|
|
<qandaentry>
|
|
<question><para>
|
|
<application>MPlayer</application> dies with "MPlayer interrupted by
|
|
signal 4 in module: decode_video".
|
|
</para></question>
|
|
<answer><para>
|
|
Try running MPlayer on the machine you compiled on. Or recompile with runtime
|
|
CPU detection (<command>./configure --enable-runtime-cpudetection</command>).
|
|
Don't use MPlayer on a CPU different from the one it was compiled on, without
|
|
using the feature mentioned just now.
|
|
</para></answer>
|
|
</qandaentry>
|
|
<qandaentry>
|
|
<question><para>
|
|
I have problems with [your window manager] and fullscreen xv/xmga/sdl/x11 modes ...
|
|
</para></question>
|
|
<answer><para>
|
|
Read the <link linkend="bugreports">bug reporting guidelines</link> and send us
|
|
a proper bug report.
|
|
</para></answer>
|
|
</qandaentry>
|
|
<qandaentry>
|
|
<question><para>
|
|
I got this playing MPEG files: Can't find codec for video format 0x10000001!
|
|
</para></question>
|
|
<answer><para>
|
|
You have an old version of <filename>codecs.conf</filename> at
|
|
<filename class="directory">~/.mplayer/</filename>. Upgrade it from
|
|
<filename class="directory">/etc/</filename>.
|
|
<emphasis role="bold">OR</emphasis> you have the <option>vc=</option> option or
|
|
something similar in your config file(s).
|
|
</para></answer>
|
|
</qandaentry>
|
|
<qandaentry>
|
|
<question><para>
|
|
When starting <application>MPlayer</application> under KDE I just get a black
|
|
screen and nothing happens. After about one minute the video starts playing.
|
|
</para></question>
|
|
<answer><para>
|
|
The KDE arts sound daemon is blocking the sound device. Either wait until the
|
|
video starts or disable the arts-daemon in kontrol center. If you want to use
|
|
arts sound, specify audio output via our native arts audio driver
|
|
(<option>-ao arts</option>). If it fails or isn't compiled in, try SDL
|
|
(<option>-ao sdl</option>) and make sure your SDL can handle arts sound. Yet
|
|
another option is to start MPlayer with artsdsp.
|
|
</para></answer>
|
|
</qandaentry>
|
|
<qandaentry>
|
|
<question><para>
|
|
I have an AVI that produces a gray screen when played with <option>-vc odivx</option>
|
|
and a green one with <option>-vc divx4</option>.
|
|
</para></question>
|
|
<answer><para>
|
|
It's not a DivX file, but an MS MPEG4v3. Update your <filename>codecs.conf</filename>.
|
|
</para></answer>
|
|
</qandaentry>
|
|
<qandaentry>
|
|
<question><para>
|
|
When I play this movie I get video-audio desync and/or <application>MPlayer</application>
|
|
crashes with the following message:
|
|
<screen>DEMUXER: Too many (945 in 8390980 bytes) video packets in the buffer!</screen>
|
|
</para></question>
|
|
<answer><para>
|
|
This can have multiple reasons.
|
|
<itemizedlist>
|
|
<listitem><para>
|
|
Your CPU <emphasis role="bold">and/or</emphasis> video card <emphasis role="bold">and/or</emphasis>
|
|
bus is too slow. MPlayer displays a message if this is the case (and the
|
|
dropped frames counter goes up fast).
|
|
</para></listitem>
|
|
<listitem><para>
|
|
If it is an AVI, maybe it has bad interleaving. Try the <option>-ni</option> option.
|
|
</para></listitem>
|
|
<listitem><para>
|
|
Your sound driver is buggy, or you use ALSA 0.5 with <option>-ao oss</option>.
|
|
See the <link linkend="audio-dev">sound card section</link>.
|
|
</para></listitem>
|
|
<listitem><para>
|
|
The AVI has a bad header, try the <option>-nobps</option> option, and/or <option>-mc 0</option>.
|
|
</para></listitem>
|
|
</itemizedlist>
|
|
</para></answer>
|
|
</qandaentry>
|
|
<qandaentry>
|
|
<question><para>
|
|
I have an MJPEG file which works with other players but displays only a black image in
|
|
<application>MPlayer</application>
|
|
</para></question>
|
|
<answer><para>
|
|
Disable the Windows DLL in <filename>codecs.conf</filename>, or use the
|
|
<option>-vc ffmjpeg</option> option (compile MPlayer with libavcodec for this to work).
|
|
</para></answer>
|
|
</qandaentry>
|
|
<qandaentry>
|
|
<question><para>
|
|
When I try to grab from my tuner, it works, but colors are strange. It's OK with other
|
|
applications.
|
|
</para></question>
|
|
<answer><para>
|
|
Your card probably misreports its colorspace capacity. Try with YUY2 instead of
|
|
default YV12 (see the <link linkend="tv-input">TV input documentation</link>).
|
|
</para></answer>
|
|
</qandaentry>
|
|
<qandaentry>
|
|
<question><para>
|
|
When I start playing, I get this message but everything seems fine:
|
|
<screen>Linux RTC init: ioctl (rtc_pie_on): Permission denied</screen>
|
|
</para></question>
|
|
<answer><para>
|
|
You need root privileges or a specially set up kernel to use the new timing
|
|
code. For details see the <link linkend="rtc">RTC section</link> of the documentation.
|
|
</para></answer>
|
|
</qandaentry>
|
|
<qandaentry>
|
|
<question><para>
|
|
I have A/V sync problems. Some of my AVIs play fine, but some play with double speed!
|
|
</para></question>
|
|
<answer><para>
|
|
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.
|
|
</para></answer>
|
|
</qandaentry>
|
|
<qandaentry>
|
|
<question><para>
|
|
All the WMV (or other..) files I play create a green/gray window and there is
|
|
only sound! <application>MPlayer</application> prints:
|
|
<screen>Detected video codec: [null] drv:0 (NULL codec (no decoding))</screen>
|
|
</para></question>
|
|
<answer><para>
|
|
Update your <filename>codecs.conf</filename>.
|
|
</para></answer>
|
|
</qandaentry>
|
|
<qandaentry>
|
|
<question><para>
|
|
I get very strange percentage values (way too big) while playing files on my notebook.
|
|
</para></question>
|
|
<answer><para>
|
|
It's an effect of the power management / power saving system of your notebook
|
|
(BIOS, not kernel). Plug the external power connector in before you power on
|
|
your notebook. You can also try whether
|
|
<ulink url="http://www.brodo.de/cpufreq/">cpufreq</ulink> (a SpeedStep interface for Linux) helps you.
|
|
</para></answer>
|
|
</qandaentry>
|
|
<qandaentry>
|
|
<question><para>
|
|
The audio/video gets totally out of sync when I run <application>MPlayer</application>
|
|
as root on my notebook. It works normal when i run it as a user.
|
|
</para></question>
|
|
<answer><para>
|
|
This is again a power management effect (see above). Plug the external power
|
|
connector in <emphasis role="bold">before</emphasis> you power on your notebook
|
|
or use the <option>-nortc</option> option.
|
|
</para></answer>
|
|
</qandaentry>
|
|
</qandadiv>
|
|
|
|
<qandadiv id="faq-driver">
|
|
<title>Video/audio driver problems (vo/ao)</title>
|
|
<qandaentry>
|
|
<question><para>
|
|
I have no sound when playing a video and get error messages similar to this one:
|
|
<screen>
|
|
AO: [oss] 44100Hz 2ch Signed 16-bit (Little-Endian)
|
|
audio_setup: Can't open audio device /dev/dsp: Device or resource busy
|
|
couldn't open/init audio device -> NOSOUND
|
|
Audio: no sound!!!
|
|
Start playing...
|
|
</screen>
|
|
</para></question>
|
|
<answer><para>
|
|
Are you running KDE or GNOME with the ARTS or ESD sound daemon? Try disabling
|
|
the sound daemon or use the <option>-ao arts</option> or <option>-ao esd</option>
|
|
option to make MPlayer use ARTS or ESD.
|
|
</para></answer>
|
|
</qandaentry>
|
|
<qandaentry>
|
|
<question><para>
|
|
What about the DGA driver? I can't find it!
|
|
</para></question>
|
|
<answer><para>
|
|
<filename>./configure</filename> autodetects your DGA driver. If <option>-vo help</option>
|
|
doesn't show DGA, then there's a problem with your X installation. Try
|
|
<command>./configure --enable-dga</command> and read the
|
|
<link linkend="dga">documentation</link>. Alternatively, try SDL's DGA driver
|
|
with the <option>-vo sdl:dga</option> option.
|
|
</para></answer>
|
|
</qandaentry>
|
|
<qandaentry>
|
|
<question><para>
|
|
OK, <option>-vo help</option> shows DGA driver, but it complains about permissions.
|
|
Help me!
|
|
</para></question>
|
|
<answer><para>
|
|
It works only if running as root! It's a DGA limitation. You should become root
|
|
(<command>su -</command>), and try again. Another solution is making MPlayer SUID
|
|
root, but it's not recommended!
|
|
<screen>
|
|
chown root /usr/local/bin/mplayer
|
|
chmod 755 /usr/local/bin/mplayer
|
|
chmod +s /usr/local/bin/mplayer
|
|
</screen>
|
|
<warning><para>
|
|
This is a <emphasis role="bold">big</emphasis> security risk! <emphasis role="bold">Never</emphasis>
|
|
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.
|
|
<emphasis role="bold">You have been warned</emphasis>.
|
|
</para></warning>
|
|
</para></answer>
|
|
</qandaentry>
|
|
<qandaentry>
|
|
<question><para>
|
|
When using Xvideo, my Voodoo 3/Banshee says:
|
|
<screen>
|
|
X Error of failed request: BadAccess (attempt to access private resource denied)
|
|
Major opcode of failed request: 147 (MIT-SHM)
|
|
Minor opcode of failed request: 1 (X_ShmAttach)
|
|
Serial number of failed request: 26
|
|
Current serial number in output stream:27
|
|
</screen>
|
|
</para></question>
|
|
<answer><para>
|
|
The "tdfx" driver in XFree86 4.0.2/4.0.3 had this bug. This was
|
|
solved by <ulink url="http://www.xfree86.org/cvs/changes_4_1.html">bugfix #621
|
|
of the XFree86 4.1.0 CVS log</ulink>. So upgrade to XFree86 4.1.0 or later.
|
|
Alternatively, either download (at least) DRI version 0.6 from the
|
|
<ulink url="http://dri.sourceforge.net">DRI homepage</ulink>, or use CVS DRI.
|
|
</para></answer>
|
|
</qandaentry>
|
|
<qandaentry>
|
|
<question><para>
|
|
OpenGL (<option>-vo gl</option>) output doesn't work (hang/black window/X11
|
|
errors/...).
|
|
</para></question>
|
|
<answer><para>
|
|
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.
|
|
</para></answer>
|
|
</qandaentry>
|
|
<qandaentry>
|
|
<question><para>
|
|
I have an nVidia TNT/TNT2 card, and I have a band with strange colors, right
|
|
under the movie! Whose fault is this?
|
|
</para></question>
|
|
<answer><para>
|
|
This is a bug of nVidia's binary X driver. These bugs appear ONLY with the
|
|
TNT/TNT2 cards, and we can't do anything about it. To fix the problem, upgrade
|
|
to the latest nVidia binary driver version. If still bad, complain to nVidia!
|
|
</para></answer>
|
|
</qandaentry>
|
|
<qandaentry>
|
|
<question><para>
|
|
I have an nVidia XYZ card, and when I click on the GUI's display window to
|
|
toggle displaying the GUI panel, a black square appears where I clicked. I have
|
|
the newest driver.
|
|
</para></question>
|
|
<answer><para>
|
|
Yes, nVidia corrected a previous bug (above), and introduced a new one.
|
|
Let's congratulate them. UPDATE: According to <link linkend="nvidia">nVidia</link>,
|
|
this has already been fixed.
|
|
</para></answer>
|
|
</qandaentry>
|
|
<qandaentry>
|
|
<question><para>
|
|
When I use the GUI with SDL video output, a second video window is created.
|
|
</para></question>
|
|
<answer><para>
|
|
Known, don't use SDL for the GUI yet.
|
|
</para></answer>
|
|
</qandaentry>
|
|
<qandaentry>
|
|
<question><para>
|
|
Oh the world is cruel ...! SDL has only <systemitem>x11</systemitem> target,
|
|
but not <systemitem>xv</systemitem>!
|
|
</para></question>
|
|
<answer><para>
|
|
Try that <systemitem>x11</systemitem> target again. Now try <option>-vo x11
|
|
-fs -zoom</option>. See the difference? No?! OK, here comes the enlightenment:
|
|
SDL's <systemitem>x11</systemitem> target uses xv when available, you don't have
|
|
to worry about it ... Note: you can force/disable Xv via SDL using
|
|
<option>-forcexv</option> and <option>-noxv</option>
|
|
</para></answer>
|
|
</qandaentry>
|
|
</qandadiv>
|
|
|
|
<qandadiv id="faq-dvd">
|
|
<title>DVD playback</title>
|
|
<qandaentry>
|
|
<question><para>
|
|
What about DVD navigation?
|
|
</para></question>
|
|
<answer><para>
|
|
Support for dvdnav in <application>MPlayer</application> is currently broken,
|
|
normal playback does work, though. If you want to have fancy menus, you will
|
|
have to use another player like <application>Xine</application> or
|
|
<application>Ogle</application>. If you care about DVD navigation, send a
|
|
<ulink url="../../tech/patches.txt">patch</ulink>.
|
|
</para></answer>
|
|
</qandaentry>
|
|
<qandaentry>
|
|
<question><para>
|
|
While playing a DVD, I encountered this error:
|
|
<screen>mplayer: ifo_read.c:1143: ifoRead_C_ADT_internal: Assertion nfo_length / sizeof(cell_adr_t) >= c_adt->nr_of_vobs' failed.</screen>
|
|
</para></question>
|
|
<answer><para>
|
|
This is a known libdvdread 0.9.1/0.9.2 bug. Use <emphasis role="bold">libmpdvdkit2</emphasis>,
|
|
which is present in <application>MPlayer</application> source, and used by default.
|
|
</para></answer>
|
|
</qandaentry>
|
|
<qandaentry>
|
|
<question><para>
|
|
What about subtitles? Can MPlayer display them?
|
|
</para></question>
|
|
<answer><para>
|
|
Yes. See the <link linkend="dvd">DVD chapter</link> of the documentation.
|
|
</para></answer>
|
|
</qandaentry>
|
|
<qandaentry>
|
|
<question><para>
|
|
How can I set the region code of my DVD-drive? I don't have Windows!
|
|
</para></question>
|
|
<answer><para>
|
|
Use the <ulink url="http://www.linuxtv.org/download/dvd/dvd_disc_20000215.tar.gz">regionset tool</ulink>
|
|
</para></answer>
|
|
</qandaentry>
|
|
<qandaentry>
|
|
<question><para>
|
|
Do I need to be (setuid) root/setuid fibmap_mplayer to be able to play a DVD?
|
|
</para></question>
|
|
<answer><para>
|
|
No, only for old-style DVD support. However you must have the proper rights
|
|
on the DVD device entry (in <filename class="directory">/dev/</filename>).
|
|
</para></answer>
|
|
</qandaentry>
|
|
<qandaentry>
|
|
<question><para>
|
|
Where can I get libdvdread and libdvdcss packages?
|
|
</para></question>
|
|
<answer><para>
|
|
You don't need to. Use <emphasis role="bold">libmpdvdkit2</emphasis>, which is
|
|
present in the MPlayer source, and used by default. You can get the mentioned
|
|
packages from the <ulink url="http://www.dtek.chalmers.se/groups/dvd/">Ogle site</ulink>.
|
|
</para></answer>
|
|
</qandaentry>
|
|
<qandaentry>
|
|
<question><para>
|
|
Is it possible to play/encode only selected chapters?
|
|
</para></question>
|
|
<answer><para>
|
|
Yes, try the <option>-chapter</option> option.
|
|
</para></answer>
|
|
</qandaentry>
|
|
<qandaentry>
|
|
<question><para>
|
|
My DVD playback is sluggish!
|
|
</para></question>
|
|
<answer><para>
|
|
Use the <option>-cache</option> option (described in the man page) and try
|
|
enabling DMA for the DVD drive with the <command>hdparm</command> tool (described
|
|
in the <link linkend="drives">CD chapter</link> of the documentation).
|
|
</para></answer>
|
|
</qandaentry>
|
|
</qandadiv>
|
|
|
|
<qandadiv id="faq-features">
|
|
<title>Feature requests</title>
|
|
<qandaentry>
|
|
<question><para>
|
|
If MPlayer is paused and I try to seek or press any key at all, MPlayer
|
|
ceases to be paused. I would like to be able to seek in the paused movie.
|
|
</para></question>
|
|
<answer><para>
|
|
This is very tricky to implement without losing A/V synchronization.
|
|
All attempts have failed so far, but patches are welcome.
|
|
</para></answer>
|
|
</qandaentry>
|
|
<qandaentry>
|
|
<question><para>
|
|
I'd like to seek +/- 1 frames instead of 10 seconds.
|
|
</para></question>
|
|
<answer><para>
|
|
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.
|
|
</para></answer>
|
|
</qandaentry>
|
|
<qandaentry>
|
|
<question><para>
|
|
Where is the Windows version?
|
|
</para></question>
|
|
<answer><para>
|
|
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. BTW you can compile it yourself, under <link linkend="cygwin">Cygwin</link>.
|
|
</para></answer>
|
|
</qandaentry>
|
|
<qandaentry>
|
|
<question><para>
|
|
How can I make MPlayer remember the options I use for this particular file?
|
|
</para></question>
|
|
<answer><para>
|
|
Create a file named <filename>movie.avi.conf</filename> with the file-specific
|
|
options in it and put it in <filename class="directory">~/.mplayer</filename> or
|
|
in the same directory as the file.
|
|
</para></answer>
|
|
</qandaentry>
|
|
</qandadiv>
|
|
|
|
<qandadiv id="faq-encoding">
|
|
<title>Encoding</title>
|
|
<qandaentry>
|
|
<question><para>
|
|
My tuner works, I can hear the sound and watch the video with MPlayer,
|
|
but MEncoder doesn't encode audio!
|
|
</para></question>
|
|
<answer><para>
|
|
TV audio encoding for Linux is currently unimplemented, we're working
|
|
on it. At the moment it works only on BSD.
|
|
</para></answer>
|
|
</qandaentry>
|
|
<qandaentry>
|
|
<question><para>
|
|
I can't encode DVD subtitles into the AVI!
|
|
</para></question>
|
|
<answer><para>
|
|
You have to specify the <option>-sid</option> option correctly!
|
|
</para></answer>
|
|
</qandaentry>
|
|
<qandaentry>
|
|
<question><para>
|
|
MEncoder segfaults on startup!
|
|
</para></question>
|
|
<answer><para>
|
|
Upgrade DivX4Linux.
|
|
</para></answer>
|
|
</qandaentry>
|
|
<qandaentry>
|
|
<question><para>
|
|
How can I encode only selected chapters from a DVD?
|
|
</para></question>
|
|
<answer><para>
|
|
Use the <option>-chapter</option> option correctly, like: <option>-chapter 5-7</option>
|
|
</para></answer>
|
|
</qandaentry>
|
|
<qandaentry>
|
|
<question><para>
|
|
I'm trying to work with 2GB+ files on a VFAT file system. Does it work?
|
|
</para></question>
|
|
<answer><para>
|
|
No, VFAT doesn't support 2GB+ files.
|
|
</para></answer>
|
|
</qandaentry>
|
|
<qandaentry>
|
|
<question><para>
|
|
Why is the recommended bitrate printed by MEncoder negative?
|
|
</para></question>
|
|
<answer><para>
|
|
Because the bitrate you encoded the audio with is too large to fit the
|
|
movie on any CD. Check if you have libmp3lame installed properly.
|
|
</para></answer>
|
|
</qandaentry>
|
|
</qandadiv>
|
|
</qandaset>
|
|
|
|
</chapter>
|