Error when internet connection disconnected

[pubpy2015]

Hi,

I have some problem with your lib:

1. After start push image to server, if connection interrupt the application will crash.
2. If dont have connection at first, when stop push thread, the application will hang or crash.
3. Can not create more than 1 encoder (for push 1 image to 2 stream with different resolution)

Please check and help me solve these problems.