[MPlayer-users] "too slow" even with a modern system?

[Grant]

>> >> I'm getting the "Your system is too SLOW to play this!" message even with:
>> >>
>> >> -lavdopts fast:skiploopfilter=all:threads=4
>> >>
>> >> I'm trying to play a 1080p MTS file created by my Sony digital camera
>> >> and video is smooth but audio is out of sync.  My system is a Dell
>> >> XPS13 Ultrabook.  Is there anything I can do?
>
> Since that seems to be a system with TurboBoost, it's not sure that
> using threads is going to make it go much faster.
> Also the processor in that computer seems to run at half the speed of
> the desktop processors, whereas according to your output it would play
> fine if it was just about 30% faster...
>
>> > Hard to help you w/o showing us the complete command line and all output
>> > generated.
>>
>> Sorry about that, here is the output:
>>
>> $ mplayer -lavdopts fast:skiploopfilter=all:threads=4 00006.MTS
>> MPlayer SVN-r33094-4.5.3 (C) 2000-2011 MPlayer Team
>
> This is really old. It probably doesn't contain any optimizations at all
> for your system (i5/i7).
>
>> VIDEO H264(pid=4113) AUDIO A52(pid=4352) SUB Teletext(pid=4608)  PROGRAM N. 1
>> FPS seems to be: 59.940060
>
> Looks like it is indeed recorded at 60 fps, that is quite heavy to
> decode.
>
>> VO: [xv] 1920x1080 => 1920x1080 Planar YV12
>> A:   2.9 V:   2.4 A-V:  0.491 ct: -0.017  82/ 82 128%  4%  2.0% 75 0
>
> Note that vsync is not an issue, both because it generally isn't with
> XVideo, and you can also see it from the CPU usage numbers "128% 4%
> 2.0%", vsync issues would cause the second to be large.
> The first number says that decoding the video takes 28% more time than
> what would be necessary to decode in real-time.
> You can try adding skipframe=nonref, but I think the results will be bad.
> I also couldn't figure out how many cores your CPU has. If it has 4, you
> probably should use more than 4 threads.
> If it has HyperThreading, it might help to disable it (in the BIOS I
> think - it might make things slower though, that's completely
> unpredictable).

I found that I can play 00006.mp4 perfectly if I:

ffmpeg -i 00006.MTS -sameq 00006.mp4

I can 'mplayer 00006.mp4' and audio stays perfectly in sync.  What
does this mean?

- Grant