[FFmpeg-user] ffmpeg to rtmp stream dies between switched videos (input from ffserver or vlc)

[Paul J. Homlish III]

I need to send a rtmp stream something like:*
**
**

ffmpeg \

-i http://10.11.1.96:9090 \

-r 15 \

-c:v libx264 \

-crf 30 \

-b:v 4000k -minrate 8000k -maxrate 8000k -bufsize 1835k \

-ac 1 \

-ab 128k \

-ar 44100 \

-r 15 \

-f flv rtmp://live.justin.tv/app/live_*WhosYourMama

this dies when the input switches videos. I've tried generating the 
input (http://10.11.1.96:9090 shown above) from vlc and from an ffserver.

How can I keep the stream to the rtmp server from hanging when I switch 
videos?

thanks,
Paul