[streaming] x264 [warning]: VBV underflow?

[Alejandro]

Hi List,

Currently I use x264 codec for real time MPEG4TS streaming.

But receive this Warning

x264 [warning]: VBV underflow (-11966 bits)
x264 [warning]: VBV underflow (-2136 bits)
x264 [warning]: VBV underflow (-93584 bits)
x264 [warning]: VBV underflow (-436 bits)
x264 [warning]: VBV underflow (-32048 bits)

I read a lot of forums but really not understand very well what happen?

Please any help with that?

Regards
Alejandro