From be18fccb89965ad62a82aa31d0e3d36b9453f757 Mon Sep 17 00:00:00 2001 From: arpi_esp Date: Mon, 30 Apr 2001 02:16:07 +0000 Subject: [PATCH] List of known bugs and workarounds git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@669 b3059339-0415-0410-9bf9-f77b7e298cf2 --- DOCS/BUGS | 68 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 68 insertions(+) create mode 100644 DOCS/BUGS diff --git a/DOCS/BUGS b/DOCS/BUGS new file mode 100644 index 0000000000..fb6611b5ef --- /dev/null +++ b/DOCS/BUGS @@ -0,0 +1,68 @@ +Known bugs: +~~~~~~~~~~~ + +Special system/cpu-specific bugs/problems: +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +1. SIGILL (signal 4) in draw_frame, on P3 (mostly 2.2.x kernels): + Problem: movups is crashing in libvo/fastmemcpy.h + Workaround: ./configure --disable-fastmemcpy + +2. No image (black image) in RGB 16bpp (x11,dga,fbdev,svga) playing + MPEG files on SMP machine: + Problem: bug(?) in MMX YV12->RGB16 converter code + Workaround: ./configure --disable-mmx + +3. SIGILL or other fault at loading l3codeca.acm: + Problem: shared libs are loaded to 0x00100000 instead of 0x40000000 + Workaround: mplayer -afm 1 ... + +Please contact me if you experienced any of the above problems. We need +people to test fixes and send us as many system details information as +possible (kernel+libc+gcc+binutils version, test results, /proc/cpuinfo etc) +because they are system-dependent problems and aren't reproducable here. +Please tell me if you can fix them or you are only user. +Unfortunately we can't reproduce these here, so it's very hard to fix. + +Various A-V sync and other audio problems: +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +General audio delay or jerky sound (exists with all or many files): +- bad select() in audio driver (including ALSA's OSS emulation) + Workaround: ./configure --disable-select +- audio buffer problems + Workaround: mplayer -abs option +- slow machine (cpu or vga) + try with -vo null, if it plays well, then you has slow VGA card/driver: + Workaround: buy a faster card or read DOCS/VIDEOCARDS about how to speed up + +Audio delay specific to one or a few files: +- bad file (pleae upload the file, so we can check & fix) + Workaround: -ni and/or -bps options + -delay option or +/- keys at runtime to adjuts delay +- your soundcard doesn't support 48khz playback + Workaround: buy a better soundcard... +- file has VBR mp3 audio + Workaround: mplayer -mc 0 + +After many > or ^ (fast forward) audio vs. video is going out of sync (ASF/AVI) +- bug in mplayer code (a-v sync probs after seek... not really bug but + my avi/asf seeking code is not perfect yet) + +Signal 11 in decode_audio: +- mp3lib doesn't handle (yet) well bad/broken audio streams + Workaround: -afm 4 +- if it's still bad, try with -nosound [and report the bug, see BUGREPORTS] + +No sound at all: +- your file uses a not supported codec + Workaround: read DOCS/CODECS, and help us adding support for it + +Video-out problems: +~~~~~~~~~~~~~~~~~~~ +First note: options -fs -vm and -zoom are just recommendations, not (yet) +supported by all drivers. So it isn't a bug if it doesn't work. +Only a few driver supports scaling/zooming, don't except this from x11 or dga. + +[TODO: known libvo bugs] + + +A'rpi / Astral & ESP-team