Mux streams to UDP TS output stream

[GeorgeHill]

Hello,

Does anybody know if it exists a program to multiplex some input streams, (Internet received radiostations), convert them to MPEG1 Layer 2 (MP2) audio codec, and MUX them into a Transport Stream (UDP) to feed a DVB-T signal ?

I currently do with FFMPEG, but I have problems if any of the input streams goes down.

I use:
ffmpeg -vn -i http://radio1 -i http://radio2 -map 0 -map 1 -c:a libtwolame -b:a 256k -ar 48000 -flush_packets 0 -program title="Radio 1":program_num=32806:st=0 -program title="Radio 2":program_num=32807:st=1 -f mpegts -muxrate 1M -mpegts_service_type 0x2 udp://192.168.0.2:65432?pkt_size=1316

Would you change anything to improve it ?