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| author | gabucino <gabucino@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2001-08-24 18:48:13 +0000 |
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| committer | gabucino <gabucino@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2001-08-24 18:48:13 +0000 |
| commit | 8fae9da08683f88f7ad1ec2649830b6d0b2da483 (patch) | |
| tree | 58e06ab8fa7cc62f246d4fd5c6e10a06215880ef /DOCS/faq.html | |
| parent | 5a363c0e8498572594026612099227c3a1b68479 (diff) | |
| download | mpv-8fae9da08683f88f7ad1ec2649830b6d0b2da483.tar.bz2 mpv-8fae9da08683f88f7ad1ec2649830b6d0b2da483.tar.xz | |
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diff --git a/DOCS/faq.html b/DOCS/faq.html index 33f195008d..35305125e3 100644 --- a/DOCS/faq.html +++ b/DOCS/faq.html @@ -1,314 +1,458 @@ <HTML> - <BODY> -<PRE> - - <A NAME=5>5. FAQ section</A> - - - <A NAME=5.1>5.1. Compilation</A> - - <B>Q: What's the problem with gcc 2.96 ? - </B>A: gcc 2.96 is RedHat's UNOFFICIAL (it can be found only on RedHat sites, or - RedHat distributions) and BUGGY gcc release. gcc 2.96 is TOTALLY - unsupported by <B>MPlayer</B>, because it simply SKIPS MMX codes, it just does - not compile it. Important: this is NOT an <B>MPlayer</B>-specific problem, - numerous other projects (DRI, avifile, etc..) have problems with this shit - too. - ** DO NOT USE gcc 2.96 !!! ** - - <B>Q: Great, I have gcc 3.0.1 from RedHat/Mandrake, then I'm fine--! - </B>A: No :) Their gcc 3.0.1 was compiled with gcc 2.96, so they are - buggy shit too. - - <B>Q: Now then. What should I use? - </B>A: Any of gcc 2.95 series. - - <B>Q: SDL output doesn't work or compile. Problem is .... - </B>A: It is tested with newest SDL (probably runs on 1.1.7+). - It does NOT work with 1.1.6, 1.1.5 1.1.4 1.1.3 1.0.4 etc, don't ask. - - <B>Q: I am still having trouble compiling with SDL support. gcc says something - about "undefined reference to `SDL_EnableKeyRepeat'" What's now? - </B>A: Where did you install the SDL library? If you installed in /usr/local - (the default) then edit the top level config.mak and add - "-L/usr/local/lib " after "X_LIBS=" Now type make. You're done! - - <B>Q: It doesn't compile, and it misses uint64_t inttypes.h and similar things... - </B>A: copy etc/inttypes.h to <B>MPlayer</B> directory (cp etc/inttypes.h .) - try again... if fail, contact us - - <B>Q: I have Pentium III but ./configure doesn't detect SSE - </B>A: Only kernel versions 2.4.x supports SSE (or try latest 2.2.19 or newer, but - be prepared for problems) - - <B>Q: I have G200/G400, how to compile/use mga_vid driver? - </B>A: Read all this documentation. - - <B>Q: Are there rpm/deb/... packages of <B>MPlayer</B>? - </B>A: You can make a .deb package for yourself, check section <A HREF="documentation.html#6.1">6.1</A> . - It's _STRONGLY_ discouraged to use precompiled packages - of <B>MPlayer</B>, since it (currently) _highly_ depends on compile-time - options and optimizations! - Precompiled packages are COMPLETELY unsupported by the <B>MPlayer</B> team! - - <B>Q: During 'make', <B>MPlayer</B> complains about X11 libraries. I don't understand, - I DO have X installed!? - </B>A: ...but you don't have the X development package installed. Or not - correctly. It's called XFree86-devel* under RedHat, and xlib6g-dev* under - Debian. Also check if the /usr/X11 symlink exists (this can be a problem on - Mandrake systems). It can be created with the - $ ln -sf /usr/X11R6 /usr/X11 - command. Also check the /usr/include/X11 link : - $ ln -sf /usr/X11R6/include/X11 /usr/include/X11 - Your distribution may differ from the Linux Filesystem Standard. - - <B>Q: What about DGA driver? I can't find it!!! - </B>A: ./configure autodetects your DGA driver. If -vo help doesn't show - DGA, then there's a problem with your X installation. - Try ./configure --enable-dga (and RTFM) - Alternatively, try SDL's DGA driver with '-vo sdl:dga' options. - - <B>Q: I can't compile SVGAlib.. I'm using 2.3/2.4 kernel. - </B>A: You have to edit SVGAlib's Makefile.cfg and comment "BACKGROUND = y" out. - - <B>Q: I compiled <B>MPlayer</B> with libcss/libdivxdecore support, but when - I try to start it, it says : - > error while loading shared libraries: libcss.so.0: cannot load - > shared object file: No such file or directory - I checked up on the file and it IS there in /usr/local/lib. - </B>A: What are you doing on Linux? Can't you install a library? Why do - we get these questions? It's not <B>MPlayer</B> specific at all! Add - /usr/local/lib to <B>/etc/ld.so.conf</B> and run <B>ldconfig</B> . - Or install it to /usr/lib , because if you can't solve the /usr/local - problem, you are careless enough to do such things. - - - <A NAME=5.2>5.2. General questions</A> - - <B>Q: What about DVD playing ? - </B>A: Read the CD/DVD section . - - <B>Q: -xy option doesn't work with x11 driver (-vo x11) - </B>A: x11 driver doesn't support scaling, but XF86VidMode support is now - used: you must specify the -vm and the -fs switch, and you're done. - Make sure you have the right Modelines in your XF86Config file, and - try if the DGA driver (and SDL's DGA driver, see RTFM) works for you. - It's much faster. If SDL's DGA works too, use that, it'll be EVEN - faster! - - <B>Q: what is the meaning of numbers in the status line? - </B>A: see: - </B>A: 2.1 V: 2.2 A-V: -0.167 ct: 0.042 57 41% 0% 2.6% 0 - - </B>A: audio position in seconds - - V: video position in seconds - - A-V: audio-video difference in seconds (delay) - - ct: total A-V sync correction done - - frames played (counting from last seek) - - video codec cpu usage in percent (for mpeg it includes video_out too!) - - video_out cpu usage for avi, 0 for mpg (see above) - - audio codec cpu usage in percent - - frames needed to drop to maintain A-V sync - Most of them are for debug purposes, and will be removed soon. - - <B>Q: Why is video_out cpu usage zero (0%) for mpeg files? - </B>A: It's not zero, but it's built in into codec, so can't be measured separated. - You should try to play the file using -vo null and then -vo ... and check - the difference to see video_out speed... - - <B>Q: What's XMMP? (is it XMMS or XMPS but mispelled?) - </B>A: It's a new project, see http://frozenproductions.com for details - - <B>Q: There are error messages about file not found /usr/lib/win32/.... - </B>A: Download & install w32codec.zip from *our* FTP - (avifile's codec package has different DLL set) - - <B>Q: Are there any mailing lists on <B>MPlayer</B>? - </B>A: Yes! See RTFM on how to subscribe them! - - <B>Q: I've found a nasty bug when I tried to play my favourite video!! - Who should I inform? - </B>A: See Appendix <A HREF="bugreports.html">C</A> . - - <B>Q: I have problems playing files with ... codec. Can I use'em? - </B>A: Check http://mplayerhq.hu/MPlayer/DOCS/codecs.html, - if it doesn't contain your codec, read - http://mplayerhq.hu/MPlayer/DOCS/CODECS, and contact us. - - <B>Q: Umm, what is "IdegCounter" ? - </B>A: A mixture of a hungarian and an english word. In english, "Ideg" means - "nerve", 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 ;) - - <B>Q: LIRC doesn't work, because ... - </B>A: Are you sure you use "mplayer_lirc" instead of "mplayer" ? - - <B>Q: Subtitles are very nice, the most beautiful I've ever seen, but they slow - down the playing! I know it's unlikely... - </B>A: After running ./configure , edit config.h and replace #undef FAST_OSD with - #define FAST_OSD . Then recompile. - - <B>Q: The OSD is flickering! - </B>A: You use a vo driver with single buffering (x11,xv). With xv, - use -double option. - - <B>Q: What exactly is this libavcodec? - </B>A: It's from Gerard Lantau's ffmpeg package (http://ffmpeg.sourceforge.net). - It has C language DivX ;-) and OpenDivX alpha 47 codec. Some benchmarks - showed that its DivX seems to be even faster than DirectShow codec without - preprocessing, and only a few percent slower than ProjectMayo's DivX4 - decoder. It uses YV12 pixel format, so old Voodoo users can use it for YUV. - Also, open the possibility to play DivX on virtually every computer that - has a C compiler. Kinda great stuff, isn't it? - - <B>Q: But configure tells me "Checking for libavcodec ... no"! - </B>A: You need to get libavcodec from FFmpeg's CVS. Read the instructions in - the <A HREF="codecs.html#2.1.2.2">ffmpeg section</A> . - - - <A NAME=5.3>5.3. File playing problems</A> - - <B>Q: ...... works with avifile/aviplay while doesn't with <B>MPlayer</B> - </B>A: <B>MPlayer</B> != avifile - The only common thing between these players is the Win32 DLL loader. - The codecs (dll) sets, syncronization, demultiplexing etc is totaly - different and shouldn't be compared. - If something works with aviplay it doesn't mean that <B>MPlayer</B> should do - it and vice versa. - - <B>Q: audio goes out of sync playing .avi file - </B>A: try with -bps or -nobps option - if still bad, send me (upload to ftp) that file, I'll check. - - <B>Q: Indeo 3.x/4.x movies are viewed upside-down!!!? - </B>A: It's a known bug (really it's a bug/limitation of the DLL codec) - Try if your vo driver supports the -flip switch. - - <B>Q: Indeo 3.x,4.x video doesn't work at 32bpp resolutions (16,24 bpp are ok) - </B>A: It's a known bug (really it's a bug/limitation of the DLL codec) - - <B>Q: I've got '<B>MPlayer</B> interrupted by signal 11' in module audio_setup or - decode_audio. - </B>A: This is highly unlikely, since the mp3lib rewrite. Contact us, it may be - a bug. Possibly it's a damaged file, try with -afm 4 . - - <B>Q: <B>MPlayer</B> exits with something error when using l3codeca.acm - </B>A: Check 'ldd /usr/local/bin/mplayer' output. If it contains - libc.so.6 => /lib/libc.so.6 (0x4???????) - where "?" is any number then it's ok, the error is not here. If it is: - libc.so.6 => /lib/libc.so.6 (0x00??????) - then there is 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 non-patched kernel, - or use <B>MPlayer</B>'s -afm 1 option to disable using l3codeca.acm. - - <B>Q: 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>A: Those files probably have 48Khz audio, and your soundcard/driver can't play - it correctly. Audio downsampling isn't implemented in <B>MPlayer</B> (yet). - Maybe use the SDL driver, with <B>-ao:sdl</B> +<P><B><A NAME=5>5. FAQ section</A></B></P> + +<TABLE BORDER=0 WIDTH=100% ALIGN=left> + +<TD COLSPAN=3><P><B><A NAME=5.1>5.1 Compilation</A></B></P> +</TD><TR><TD COLSPAN=3> </TD><TR> + +<TD> </TD><TD VALIGN=top>Q:</TD><TD WIDTH=100%><B> +What's the problem with gcc 2.96 ? +</B></TD><TR><TD></TD><TD VALIGN=top>A:</TD><TD> +gcc 2.96 is RedHat's UNOFFICIAL (it can be found only on RedHat sites, or +RedHat distributions) and BUGGY gcc release. gcc 2.96 is TOTALLY +unsupported by <B>MPlayer</B>, because it simply SKIPS MMX codes, it just does +not compile it. Important: this is NOT an <B>MPlayer</B>-specific problem, +numerous other projects (DRI, avifile, etc..) have problems with this shit +too.<BR>** DO NOT USE gcc 2.96 !!! ** +</TD><TR><TD COLSPAN=3> </TD><TR> + +<TD></TD><TD VALIGN=top>Q:</TD><TD WIDTH=100%><B> +Great, I have gcc 3.0.1 from RedHat/Mandrake, then I'm fine--! +</B></TD><TR><TD></TD><TD VALIGN=top>A:</TD><TD> +No :) Their gcc 3.0.1 was compiled with gcc 2.96, so they are +buggy shit too. +</TD><TR><TD COLSPAN=3> </TD><TR> + +<TD></TD><TD VALIGN=top>Q:</TD><TD WIDTH=100%><B> +Now then. What should I use? +</B></TD><TR><TD></TD><TD VALIGN=top>A:</TD><TD> +Any of gcc 2.95 series. +</TD><TR><TD COLSPAN=3> </TD><TR> + +<TD></TD><TD VALIGN=top>Q:</TD><TD WIDTH=100%><B> +SDL output doesn't work or compile. Problem is .... +</B></TD><TR><TD></TD><TD VALIGN=top>A:</TD><TD> +It is tested with newest SDL (probably runs on 1.1.7+). +It does NOT work with 1.1.6, 1.1.5 1.1.4 1.1.3 1.0.4 etc, don't ask. +</TD><TR><TD COLSPAN=3> </TD><TR> + +<TD></TD><TD VALIGN=top>Q:</TD><TD WIDTH=100%><B> +I am still having trouble compiling with SDL support. gcc says something +about "undefined reference to `SDL_EnableKeyRepeat'" What's now? +</B></TD><TR><TD></TD><TD VALIGN=top>A:</TD><TD> +Where did you install the SDL library? If you installed in /usr/local +(the default) then edit the top level config.mak and add +"-L/usr/local/lib " after "X_LIBS=" Now type make. You're done! +</TD><TR><TD COLSPAN=3> </TD><TR> + +<TD></TD><TD VALIGN=top>Q:</TD><TD WIDTH=100%><B> +It doesn't compile, and it misses uint64_t inttypes.h and similar things... +</B></TD><TR><TD></TD><TD VALIGN=top>A:</TD><TD> +copy etc/inttypes.h to <B>MPlayer</B> directory (cp etc/inttypes.h .) +try again... if fail, contact us +</TD><TR><TD COLSPAN=3> </TD><TR> + +<TD></TD><TD VALIGN=top>Q:</TD><TD WIDTH=100%><B> +I have Pentium III but ./configure doesn't detect SSE +</B></TD><TR><TD></TD><TD VALIGN=top>A:</TD><TD> +Only kernel versions 2.4.x supports SSE (or try latest 2.2.19 or newer, but +be prepared for problems) +</TD><TR><TD COLSPAN=3> </TD><TR> + +<TD></TD><TD VALIGN=top>Q:</TD><TD WIDTH=100%><B> +I have G200/G400, how to compile/use mga_vid driver? +</B></TD><TR><TD></TD><TD VALIGN=top>A:</TD><TD> +Read all this documentation. +</TD><TR><TD COLSPAN=3> </TD><TR> + +<TD></TD><TD VALIGN=top>Q:</TD><TD WIDTH=100%><B> +Are there rpm/deb/... packages of <B>MPlayer</B>? +</B></TD><TR><TD></TD><TD VALIGN=top>A:</TD><TD> +You can make a .deb package for yourself, check section <A HREF="documentation.html#6.1">6.1</A>. +It's _STRONGLY_ discouraged to use precompiled packages +of <B>MPlayer</B>, since it (currently) _highly_ depends on compile-time +options and optimizations! +Precompiled packages are COMPLETELY unsupported by the <B>MPlayer</B> team! +</TD><TR><TD COLSPAN=3> </TD><TR> + +<TD></TD><TD VALIGN=top>Q:</TD><TD WIDTH=100%><B> +During 'make', MPlayer complains about X11 libraries. I don't understand, +I DO have X installed!? +</B></TD><TR><TD></TD><TD VALIGN=top>A:</TD><TD> +...but you don't have the X development package installed. Or not +correctly. It's called XFree86-devel* under RedHat, and xlib6g-dev* under +Debian. Also check if the /usr/X11 symlink exists (this can be a problem on +Mandrake systems). It can be created with the<BR> + <CODE>$ ln -sf /usr/X11R6 /usr/X11</CODE><BR> + command. Also check the /usr/include/X11 link :<BR> + <CODE>$ ln -sf /usr/X11R6/include/X11 /usr/include/X11</CODE><BR> +Your distribution may differ from the Linux Filesystem Standard. +</TD><TR><TD COLSPAN=3> </TD><TR> + +<TD></TD><TD VALIGN=top>Q:</TD><TD WIDTH=100%><B> +What about DGA driver? I can't find it!!! +</B></TD><TR><TD></TD><TD VALIGN=top>A:</TD><TD> +./configure autodetects your DGA driver. If -vo help doesn't show +DGA, then there's a problem with your X installation. +Try ./configure --enable-dga (and RTFM) +Alternatively, try SDL's DGA driver with '-vo sdl:dga' options. +</TD><TR><TD COLSPAN=3> </TD><TR> + +<TD></TD><TD VALIGN=top>Q:</TD><TD WIDTH=100%><B> +I can't compile SVGAlib.. I'm using 2.3/2.4 kernel. +</B></TD><TR><TD></TD><TD VALIGN=top>A:</TD><TD> +You have to edit SVGAlib's Makefile.cfg and comment "BACKGROUND = y" out. +</TD><TR><TD COLSPAN=3> </TD><TR> + +<TD></TD><TD VALIGN=top>Q:</TD><TD WIDTH=100%><B> +I compiled MPlayer with libcss/libdivxdecore support, but when +I try to start it, it says:<BR> +<CODE>> error while loading shared libraries: libcss.so.0: cannot load +shared object file: No such file or directory</CODE><BR> +I checked up on the file and it IS there in /usr/local/lib. +</B></TD><TR><TD></TD><TD VALIGN=top>A:</TD><TD> +What are you doing on Linux? Can't you install a library? Why do +we get these questions? It's not <B>MPlayer</B> specific at all! Add +/usr/local/lib to <B>/etc/ld.so.conf</B> and run <B>ldconfig</B> . +Or install it to /usr/lib , because if you can't solve the /usr/local +problem, you are careless enough to do such things. +</TD><TR><TD COLSPAN=3> </TD><TR> + +<TD COLSPAN=3><B><A NAME=5.2>5.2. General questions</A></B> +</TD><TR><TD COLSPAN=3> </TD><TR> + +<TD></TD><TD VALIGN=top>Q:</TD><TD WIDTH=100%><B> +What about DVD playing ? +</B></TD><TR><TD></TD><TD VALIGN=top>A:</TD><TD> +Read the CD/DVD section . +</TD><TR><TD COLSPAN=3> </TD><TR> + +<TD></TD><TD VALIGN=top>Q:</TD><TD WIDTH=100%><B> +-xy option doesn't work with x11 driver (-vo x11) +</B></TD><TR><TD></TD><TD VALIGN=top>A:</TD><TD> +x11 driver doesn't support scaling, but XF86VidMode support is now +used: you must specify the -vm and the -fs switch, and you're done. +Make sure you have the right Modelines in your XF86Config file, and +try if the DGA driver (and SDL's DGA driver, see RTFM) works for you. +It's much faster. If SDL's DGA works too, use that, it'll be EVEN faster! +</TD><TR><TD COLSPAN=3> </TD><TR> + +<TD></TD><TD VALIGN=top>Q:</TD><TD WIDTH=100%><B> +What is the meaning of numbers in the status line? +</B></TD><TR><TD></TD><TD VALIGN=top>A:</TD><TD> +See: <CODE>A: 2.1 V: 2.2 A-V: -0.167 ct: 0.042 57 41% 0% 2.6% 0</CODE><BR> +<UL> +<LI>A: audio position in seconds +<LI>V: video position in seconds +<LI>A-V: audio-video difference in seconds (delay) +<LI>ct: total A-V sync correction done +<LI>frames played (counting from last seek) +<LI>video codec cpu usage in percent (for mpeg it includes video_out too!) +<LI>video_out cpu usage for avi, 0 for mpg (see above) +<LI>audio codec cpu usage in percent +<LI>frames needed to drop to maintain A-V sync +</UL> +<I>Most of them are for debug purposes, and will be removed soon.</I> +</TD><TR><TD COLSPAN=3> </TD><TR> + +<TD></TD><TD VALIGN=top>Q:</TD><TD WIDTH=100%><B> +Why is video_out cpu usage zero (0%) for mpeg files? +</B></TD><TR><TD></TD><TD VALIGN=top>A:</TD><TD> +It's not zero, but it's built in into codec, so can't be measured separated. +You should try to play the file using -vo null and then -vo ... and check +the difference to see video_out speed... +</TD><TR><TD COLSPAN=3> </TD><TR> + +<TD></TD><TD VALIGN=top>Q:</TD><TD WIDTH=100%><B> +What's XMMP? (is it XMMS or XMPS but mispelled?) +</B></TD><TR><TD></TD><TD VALIGN=top>A:</TD><TD> +It's a new project, see http://frozenproductions.com for details +</TD><TR><TD COLSPAN=3> </TD><TR> + +<TD></TD><TD VALIGN=top>Q:</TD><TD WIDTH=100%><B> +There are error messages about file not found /usr/lib/win32/.... +</B></TD><TR><TD></TD><TD VALIGN=top>A:</TD><TD> +Download & install w32codec.zip from *our* FTP +(avifile's codec package has different DLL set) +</TD><TR><TD COLSPAN=3> </TD><TR> + +<TD></TD><TD VALIGN=top>Q:</TD><TD WIDTH=100%><B> +Are there any mailing lists on MPlayer? +</B></TD><TR><TD></TD><TD VALIGN=top>A:</TD><TD> +Yes! See RTFM on how to subscribe them! +</TD><TR><TD COLSPAN=3> </TD><TR> + +<TD></TD><TD VALIGN=top>Q:</TD><TD WIDTH=100%><B> +I've found a nasty bug when I tried to play my favourite video!! +Who should I inform? +</B></TD><TR><TD></TD><TD VALIGN=top>A:</TD><TD> +See Appendix <A HREF="bugreports.html">C</A>. +</TD><TR><TD COLSPAN=3> </TD><TR> + +<TD></TD><TD VALIGN=top>Q:</TD><TD WIDTH=100%><B> +I have problems playing files with ... codec. Can I use'em? +</B></TD><TR><TD></TD><TD VALIGN=top>A:</TD><TD> +Check http://mplayer.sourceforge.net/DOCS/codecs.html, +if it doesn't contain your codec, read +http://mplayer.sourceforge.net/DOCS/CODECS, and contact us. +</TD><TR><TD COLSPAN=3> </TD><TR> + +<TD></TD><TD VALIGN=top>Q:</TD><TD WIDTH=100%><B> +Umm, what is "IdegCounter"? +</B></TD><TR><TD></TD><TD VALIGN=top>A:</TD><TD> +A mixture of a hungarian and an english word. In english, "Ideg" means +"nerve", 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>Q:</TD><TD WIDTH=100%><B> +LIRC doesn't work, because ... +</B></TD><TR><TD></TD><TD VALIGN=top>A:</TD><TD> +Are you sure you use "mplayer_lirc" instead of "mplayer"? +</TD><TR><TD COLSPAN=3> </TD><TR> + +<TD></TD><TD VALIGN=top>Q:</TD><TD WIDTH=100%><B> +Subtitles are very nice, the most beautiful I've ever seen, but they slow +down the playing! I know it's unlikely... +</B></TD><TR><TD></TD><TD VALIGN=top>A:</TD><TD> +After running ./configure , edit config.h and replace #undef FAST_OSD with +<CODE>#define FAST_OSD</CODE>. Then recompile. +</TD><TR><TD COLSPAN=3> </TD><TR> + +<TD></TD><TD VALIGN=top>Q:</TD><TD WIDTH=100%><B> +The OSD is flickering! +</B></TD><TR><TD></TD><TD VALIGN=top>A:</TD><TD> +You use a vo driver with single buffering (x11,xv). With xv, +use -double option. +</TD><TR><TD COLSPAN=3> </TD><TR> + +<TD></TD><TD VALIGN=top>Q:</TD><TD WIDTH=100%><B> +What exactly is this libavcodec? +</B></TD><TR><TD></TD><TD VALIGN=top>A:</TD><TD> +It's from Gerard Lantau's ffmpeg package (http://ffmpeg.sourceforge.net). +It has C language DivX ;-) and OpenDivX alpha 47 codec. Some benchmarks +showed that its DivX seems to be even faster than DirectShow codec without +preprocessing, and only a few percent slower than ProjectMayo's DivX4 +decoder. It uses YV12 pixel format, so old Voodoo users can use it for YUV. +Also, open the possibility to play DivX on virtually every computer that +has a C compiler. Kinda great stuff, isn't it? +</TD><TR><TD COLSPAN=3> </TD><TR> + +<TD></TD><TD VALIGN=top>Q:</TD><TD WIDTH=100%><B> +But configure tells me "Checking for libavcodec ... no"! +</B></TD><TR><TD></TD><TD VALIGN=top>A:</TD><TD> +You need to get libavcodec from FFmpeg's CVS. Read the instructions in +the <A HREF="codecs.html#2.1.2.2">ffmpeg section</A>. +</TD><TR><TD COLSPAN=3> </TD><TR> + +<TD COLSPAN=3> +<B><A NAME=5.3>5.3. File playing problems</A></B> +</TD><TR><TD COLSPAN=3> </TD><TR> + +<TD></TD><TD VALIGN=top>Q:</TD><TD WIDTH=100%><B> +...... works with avifile/aviplay while doesn't with MPlayer. +</B></TD><TR><TD></TD><TD VALIGN=top>A:</TD><TD> +<B>MPlayer</B> != avifile +The only common thing between these players is the Win32 DLL loader. +The codecs (dll) sets, syncronization, demultiplexing etc is totaly +different and shouldn't be compared. +If something works with aviplay it doesn't mean that <B>MPlayer</B> should do +it and vice versa. +</TD><TR><TD COLSPAN=3> </TD><TR> + +<TD></TD><TD VALIGN=top>Q:</TD><TD WIDTH=100%><B> +Audio goes out of sync playing .avi file. +</B></TD><TR><TD></TD><TD VALIGN=top>A:</TD><TD> +Try with -bps or -nobps option +if still bad, send me (upload to ftp) that file, I'll check. +</TD><TR><TD COLSPAN=3> </TD><TR> + +<TD></TD><TD VALIGN=top>Q:</TD><TD WIDTH=100%><B> +Indeo 3.x/4.x movies are viewed upside-down!!!? +</B></TD><TR><TD></TD><TD VALIGN=top>A:</TD><TD> +It's a known bug (really it's a bug/limitation of the DLL codec) +Try if your vo driver supports the -flip switch. +</TD><TR><TD COLSPAN=3> </TD><TR> + +<TD></TD><TD VALIGN=top>Q:</TD><TD WIDTH=100%><B> +Indeo 3.x,4.x video doesn't work at 32bpp resolutions (16,24 bpp are ok). +</B></TD><TR><TD></TD><TD VALIGN=top>A:</TD><TD> +It's a known bug (really it's a bug/limitation of the DLL codec). +</TD><TR><TD COLSPAN=3> </TD><TR> + +<TD></TD><TD VALIGN=top>Q:</TD><TD WIDTH=100%><B> +I've got 'MPlayer interrupted by signal 11' in module audio_setup or +decode_audio. +</B></TD><TR><TD></TD><TD VALIGN=top>A:</TD><TD> +This is highly unlikely, since the mp3lib rewrite. Contact us, it may be +a bug. Possibly it's a damaged file, try with -afm 4. +</TD><TR><TD COLSPAN=3> </TD><TR> + +<TD></TD><TD VALIGN=top>Q:</TD><TD WIDTH=100%><B> +MPlayer exits with something error when using l3codeca.acm. +</B></TD><TR><TD></TD><TD VALIGN=top>A:</TD><TD> +Check 'ldd /usr/local/bin/mplayer' 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 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 non-patched kernel, +or use <B>MPlayer</B>'s -afm 1 option to disable using l3codeca.acm. +</TD><TR><TD COLSPAN=3> </TD><TR> + +<TD></TD><TD VALIGN=top>Q:</TD><TD WIDTH=100%><B> +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>A:</TD><TD> +Those files probably have 48Khz audio, and your soundcard/driver can't play +it correctly. Audio downsampling isn't implemented in <B>MPlayer</B> (yet). +Maybe use the SDL driver, with <B>-ao:sdl</B> +</TD><TR><TD COLSPAN=3> </TD><TR> - <B>Q: <B>MPlayer</B> dies with "<B>MPlayer</B> interrupted by signal 4 in module: decode_video". - </B>A: Try running <B>MPlayer</B> on the machine you compiled on. Or recompile. Don't - use <B>MPlayer</B> on different CPU than it was compiled on. - - <B>Q: I have problems with [your window manager] and fullscreen xv/xmga/sdl/x11 - modes.. - </B>A1: Use the -fsmode switch. See example.conf or manpage. - - <B>Q: But it works with avifile ! - </B>A: So what? - - <B>Q: Then avifile is better ! - </B>A: Then use avifile, it has nice GUI and nice C++ code :) - - <B>Q: I got this playing mpeg files: Can't find codec for video format 0x10000001 ! - </B>A: You have old version of codecs.conf at ~/.mplayer/. Upgrade it from etc/ - - <B>Q: 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>A: The KDE arts sound daemon is blocking the sound device, either wait the time - until video starts or you disable the arts-daemon in kontrollcenter. - If you want to use arts sound, specify audio output via SDL (ao=sdl), and - make sure your SDL can handle arts sound. Yet another option is to start - mplayer with artsdsp. - - <B>Q: I have an AVI that plays with grey screen with -vc odivx, and green - with -vc divx4 . - </B>A: It's not a DivX file, but an M$ MPEG4v3 . Update your codecs.conf. - - - <A NAME=5.4>5.4. Video/audio driver problems (vo/ao)</A> - - <B>Q: Ok, -vo help shows DGA driver, but it is babbling about permissions! - Help me! - </B>A: It works only if running as root! It's a DGA limitation. - You should become to root (su -), and try again. - - Another solution is making mplayer SUID root, but its NOT RECOMMENDED! - - chown root /usr/local/bin/mplayer - chmod 750 /usr/local/bin/mplayer - chmod +s /usr/local/bin/mplayer - - !!!! BUT STAY TUNED !!!! - This is a *BIG* security risk! *NEVER* do this on a server or on a computer - can be accessed by more people than only you because they can gain root - privilegies through suid root mplayer!!! - !!!! SO YOU HAVE BEEN WARNED ... !!!! - - <B>Q: When using Xvideo, my Voodoo 3/Banshee says: - 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 - </B>A: Your driver is old, update it. Either download (at least) DRI version 0.6 - from http://dri.sourceforge.net , or use the DRI cvs. - - <B>Q: When using Xvideo, I can't play DivX avis with my Voodoo 3/Banshee ! - It says: - ... - Xvideo image format: 0x32315659 (YV12) planar - Xvideo image format: 0x30323449 (I420) planar - ... - </B>A1: See the previous answer. - A2: 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. - - <B>Q: OpenGL (-vo gl) output doesn't work (hangup/black window/X11 errors/...) - </B>A: your opengl driver doesn't support dynamic texture changes (glTexSubImage) - it's known not to work with nVidia's binary shit. - it's known to work with Utah-GLX/DRI and Matrox G400 card. Also with - DRI and Radeon card. It won't work with DRI others than these. - it will not work with 3DFX cards because the 256x256 texture size limit. - - <B>Q: I have an nVidia TNT/TNT2 card, and I have a band with strange colours, - right under the movie! Whose fault is this? - </B>A: It's the nVidia X driver's. These bugs are ONLY with the TNT/TNT2 cards, - and we can't do anything about it, it's not our bug. - - - <A NAME=5.5>5.5. Feature requests</A> - - <B>Q: Is there a hint on how to watch QuickTime and RealMedia movies in MPlayer? - </B>A: There's no way to do it. Therefore these formats deserve 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. - As for QuickTime, it's possible to play some old movies and this - capability will be added to mplayer soon, but newer clips are all Sorenson - encoded, and that codec is built-in deep in the QT executable, there's - no way to use it. - -</PRE> +<TD></TD><TD VALIGN=top>Q:</TD><TD WIDTH=100%><B> +MPlayer dies with "MPlayer interrupted by signal 4 in module: decode_video". +</B></TD><TR><TD></TD><TD VALIGN=top>A:</TD><TD> +Try running <B>MPlayer</B> on the machine you compiled on. Or recompile. Don't +use <B>MPlayer</B> on different CPU than it was compiled on. +</TD><TR><TD COLSPAN=3> </TD><TR> + +<TD></TD><TD VALIGN=top>Q:</TD><TD WIDTH=100%><B> +I have problems with [your window manager] and fullscreen xv/xmga/sdl/x11 modes.. +</B></TD><TR><TD></TD><TD VALIGN=top>A:</TD><TD> +Use the -fsmode switch. See example.conf or manpage. +</TD><TR><TD COLSPAN=3> </TD><TR> + +<TD></TD><TD VALIGN=top>Q:</TD><TD WIDTH=100%><B> +But it works with avifile! +</B></TD><TR><TD></TD><TD VALIGN=top>A:</TD><TD> +So what? +</TD><TR><TD COLSPAN=3> </TD><TR> + +<TD></TD><TD VALIGN=top>Q:</TD><TD WIDTH=100%><B> +Then avifile is better! +</B></TD><TR><TD></TD><TD VALIGN=top>A:</TD><TD> +Then use avifile, it has nice GUI and nice C++ code :) +</TD><TR><TD COLSPAN=3> </TD><TR> + +<TD></TD><TD VALIGN=top>Q:</TD><TD WIDTH=100%><B> +I got this playing mpeg files: Can't find codec for video format 0x10000001! +</B></TD><TR><TD></TD><TD VALIGN=top>A:</TD><TD> +You have old version of codecs.conf at ~/.mplayer/. Upgrade it from etc/ +</TD><TR><TD COLSPAN=3> </TD><TR> + +<TD></TD><TD VALIGN=top>Q:</TD><TD WIDTH=100%><B> +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>A:</TD><TD> +The KDE arts sound daemon is blocking the sound device, either wait the time +until video starts or you disable the arts-daemon in kontrollcenter. +If you want to use arts sound, specify audio output via SDL (ao=sdl), and +make sure your SDL can handle arts sound. Yet another option is to start +mplayer with artsdsp. +</TD><TR><TD COLSPAN=3> </TD><TR> + +<TD></TD><TD VALIGN=top>Q:</TD><TD WIDTH=100%><B> +I have an AVI that plays with grey screen with -vc odivx, and green with -vc divx4 . +</B></TD><TR><TD></TD><TD VALIGN=top>A:</TD><TD> +It's not a DivX file, but an M$ MPEG4v3 . Update your codecs.conf. +</TD><TR><TD COLSPAN=3> </TD><TR> + +<TD COLSPAN=3> +<B><A NAME=5.4>5.4. Video/audio driver problems (vo/ao)</A></B> +</TD><TR><TD COLSPAN=3> </TD><TR> + + +<TD></TD><TD VALIGN=top>Q:</TD><TD WIDTH=100%><B> +Ok, -vo help shows DGA driver, but it is babbling about permissions! +Help me! +</B></TD><TR><TD></TD><TD VALIGN=top>A:</TD><TD> +It works only if running as root! It's a DGA limitation. +You should become to root (su -), and try again. +Another solution is making mplayer SUID root, but its NOT RECOMMENDED!<BR> + <CODE>chown root /usr/local/bin/mplayer</CODE><BR> + <CODE>chmod 750 /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 +can be accessed by more people than only you because they can gain root +privilegies through suid root mplayer!!!<BR> +!!!! SO YOU HAVE BEEN WARNED ... !!!! +</TD><TR><TD COLSPAN=3> </TD><TR> + +<TD></TD><TD VALIGN=top>Q:</TD><TD WIDTH=100%><B> +When using Xvideo, my Voodoo 3/Banshee says:<BR> +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<BR> +</B></TD><TR><TD></TD><TD VALIGN=top>A:</TD><TD> +Your driver is old, update it. Either download (at least) DRI version 0.6 +from <A HREF="http://dri.sourceforge.net">http://dri.sourceforge.net</A>, +or use the DRI cvs. +</TD><TR><TD COLSPAN=3> </TD><TR> + +<TD></TD><TD VALIGN=top>Q:</TD><TD WIDTH=100%><B> +When using Xvideo, I can't play DivX avis with my Voodoo 3/ |