mirror of
https://github.com/mpv-player/mpv
synced 2024-12-12 09:56:30 +00:00
ad6d62e210
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@818 b3059339-0415-0410-9bf9-f77b7e298cf2
75 lines
3.0 KiB
Plaintext
75 lines
3.0 KiB
Plaintext
Known bugs:
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~~~~~~~~~~~
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Special system/cpu-specific bugs/problems:
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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1. SIGILL (signal 4) in draw_frame, on P3 (mostly with 2.2.x kernels):
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Problem: movups is crashing in libvo/fastmemcpy.h
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Workaround: ./configure --disable-fastmemcpy
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SOLVED: disabled SSE code in fastmemcpy.h ;(
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2. No image (black image) in RGB 16bpp (x11,dga,fbdev,svga) playing
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MPEG files on SMP machine:
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Problem: bug(?) in MMX YV12->RGB16 converter code
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Workaround: ./configure --disable-mmx
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SOLVED: bug of gcc-2.96 - you should use 2.95.2 or 2.95.3
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3. SIGILL (signal 4) or other fault at loading l3codeca.acm:
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Problem: shared libs are loaded to 0x00xxxxxx instead of 0x40xxxxxx
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Workaround: mplayer -afm 1 ...
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SOLVED: you are using some security kernel patch, like OpenWall etc.
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4. General SIGILL (signal 4):
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Problem: you compiled and run mplayer in different machines
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(for example compiled on P3 and runinng on celeron)
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Solution: compile MPlayer on machine where you will use it
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Workaround: ./configure --disable-sse etc. options
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Various A-V sync and other audio problems:
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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General audio delay or jerky sound (exists with all or many files):
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- bad select() in audio driver (including ALSA's OSS emulation)
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Workaround: ./configure --disable-select
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SOLVED: using ioctls instead of select in the new audio code
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- audio buffer problems
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Workaround: mplayer -abs option
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SOLVED: using ioctls in the new audio code
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- slow machine (cpu or vga)
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try with -vo null, if it plays well, then you have slow VGA card/driver:
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Workaround: buy a faster card or read DOCS/VIDEOCARDS about how to speed up
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SOLVED: try -framedrop (maybe -hardframedrop)
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Audio delay/de-sync specific to one or a few files:
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- bad file (please upload the file, so we can check & fix)
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Workaround: -ni or -bps option (for non-interlaved or bad files)
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-mc 0 (required for files with VBR audio)
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-delay option or +/- keys at runtime to adjust delay
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- your soundcard doesn't support 48Khz playback
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Workaround: buy a better soundcard...
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or try to decrease fps by 10% (use -fps 27 for a 30fps movie)
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After many > or ^ (fast forward) audio vs. video is going out of sync (ASF/AVI)
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- bug in mplayer code (a-v sync probs after seek... not really bug but
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my avi/asf seeking code is not perfect yet)
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Signal 11 in decode_audio:
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- mp3lib doesn't handle (yet) well bad/broken audio streams
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Workaround: -afm 4
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SOLVED: fixed mp3lib, it must be rock solid now!
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- if it's still bad, try with -nosound [and report the bug, see BUGREPORTS]
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No sound at all:
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- your file uses an unsupported codec
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Workaround: read DOCS/CODECS, and help us adding support for it
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Video-out problems:
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~~~~~~~~~~~~~~~~~~~
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First note: options -fs -vm and -zoom are just recommendations, not (yet)
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supported by all drivers. So it isn't a bug if it doesn't work.
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Only a few driver supports scaling/zooming, don't expect this from x11 or dga.
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[TODO: known libvo bugs]
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A'rpi / Astral & ESP-team
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