[MPlayer-dev-eng] a-v sync fixes/cleanup backported from g2

[Mark Guptill]

On Tuesday 05 August 2003 03:32 pm, Arpi wrote:
> Please tets it, before commit. I think it's ok, but should be tested
> on very slow system (with and without -framedrop, i wanna know if A-V
> starts drifting away from 0 then).

i tested your patch with a mpeg2 video without framedrop A-V sync was reported 
to be in sync but the video was actually slower than the audio. with 
framedrop A-V sync was in sync. logs are attached.

cat /proc/cpuinfo
processor       : 0
vendor_id       : AuthenticAMD
cpu family      : 5
model           : 8
model name      : AMD-K6(tm) 3D processor
stepping        : 12
cpu MHz         : 350.804
cache size      : 64 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 1
wp              : yes
flags           : fpu vme de pse tsc msr mce cx8 pge mmx syscall 3dnow k6_mtrr
bogomips        : 699.59

00:12.0 Multimedia audio controller: Creative Labs SB Live! EMU10k1 (rev 04)
        Subsystem: Creative Labs CT4850 SBLive! Value
        Flags: bus master, medium devsel, latency 64, IRQ 10
        I/O ports at e800 [size=32]
        Capabilities: [dc] Power Management version 1
01:00.0 VGA compatible controller: 3Dfx Interactive, Inc. Voodoo 3 (rev 01) 
(prog-if 00 [VGA])
        Subsystem: 3Dfx Interactive, Inc. Voodoo3 AGP
        Flags: 66Mhz, fast devsel, IRQ 11
        Memory at e4000000 (32-bit, non-prefetchable) [size=32M]
        Memory at e8000000 (32-bit, prefetchable) [size=32M]
        I/O ports at c000 [size=256]
        Expansion ROM at e6000000 [disabled] [size=64K]
        Capabilities: [54] AGP version 1.0
        Capabilities: [60] Power Management version 1
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