Scheduled switching of media flows based on RTP timestamp in P4
Tested on bmv2 with target simple_switch
commands_ts_switching.txt: CLI commands to set up a simple schedule.
The schedule is to take input IP DST 239.1.1.1 with RTP timestamps from 0 to 2 and emit them on IP DST 239.3.3.3, then to take input 239.2.2.2 with RTP timestamps from 3 to 4 and emit them on the 239.3.3.3, and finally to take input 239.1.1.1 again with RTP timestamps 5 to 0xF and emit them on the 239.3.3.3.
The p4-16 source contains machine translated to P4-16 (src not tested yet)