This file ("H.264+AAC(A-V sync).mkv") was uploaded for testing purpose.

When I try to play the MKV file, I can see an audio-video sync problem (video is playing slower than normal... Audio speed is normal)

The playback is not longer than 14 seconds, after that time I get a message: "MPlayer interrupted by signal 11 in module: decode_video"

This appears right before the crash:

"[h264 @ 009E3CB8]illegal short term buffer state detected 1.0% 189 0
A:  14.3 V:  10.1 A-V:  4.192 ct:  3.027 243/243  9%  0%  1.0% 190 0"

You can see the audio (14.3) and video (10.1) sync problem...

And I also get the "Your system is too SLOW to play this!" message.

If I use the "-nosound" option, the video speed is normal, no messages in the terminal and no crash... If I use the "-ao null" option, the video is slower than audio (the audio-video sync problem increase while playing... Just like using the default options!!!)

I think the crash is triggered by the option "-framedrop" but without this option, the audio-video sync problem persist.