Desynchronized video and audio when there's low network speed

[GoogleCodeExporter]

What steps will reproduce the problem?
1.open a rtmp stream
2.set network speed control in router
for example:it's normal under 80KB/s, I set it to 40KB/s
3.get desynchronized Video and Audio


What is the expected output? What do you see instead?
Expected:stop audio and video at the same time, play again after buffer filled.
Now:Desynchronized Video and Audio

What version of the product are you using? On what operating system?
March 2014 download from google code
Run on Android 4.2.2 

Please provide any additional information below.
Already disable video skip or it will lag when playing every video

A reply would be greatly appreciated.

Original issue reported on code.google.com by ecools...@gmail.com on 1 May 2014 at 7:45