Why?
Unix world needs a CLI based CC monitoring tool that can accept various inputs. While piping MPEG-TS packets into dvbsnoop works, dvbsnoop does lots of other unnecessary processing using valuable CPU time. Using non-unix tools doesn't work either should you want to run headless. So CCmon was born.
Examples
$ CCmon
Default socket mode:
CCmon -group 239.3.1.1 -dev eth0
Using pcap capture:
CCmon -group 239.3.1.1 -mode pcap -dev mirror
Using pcap capture with vlan and different port number:
CCmon -group 239.3.1.1 -mode pcap -dev mirror -vlan 4 -port 666
Reading from file:
CCmon -group myfilename -mode file
Additional parameters:
-pidfilter X Run only on specific PID, ignore others
-stats Report every 100000 packets received
-cache Cache last 5 packets for every PID, display on CC error
-debug Display all packets processed
$ sudo CCmon -group 239.3.1.1 -dev mirror -mode pcap -vlan 4
Fri Jan 6 13:09:41 2012: Starting with mode:pcap dev:mirror vlan:4 group:239.3.1.1 port:1234
Fri Jan 6 13:09:41 2012: Found PID: 0x2c0
Fri Jan 6 13:09:41 2012: Found PID: 0x324
Fri Jan 6 13:09:41 2012: Found PID: 0x0
Fri Jan 6 13:09:41 2012: Found PID: 0xcc
Fri Jan 6 13:09:41 2012: Found PID: 0x1f69
Fri Jan 6 13:09:41 2012: Found PID: 0x11
Fri Jan 6 13:09:41 2012: Found PID: 0x1
Fri Jan 6 13:09:46 2012: Found PID: 0x14
Fri Jan 6 13:09:52 2012: CC error! PID: 0x324 Expected: 14, is 8
Fri Jan 6 13:09:52 2012: CC error! PID: 0x1f69 Expected: 2, is 9
Fri Jan 6 13:09:52 2012: CC error! PID: 0x0 Expected: 5, is 10
Fri Jan 6 13:09:52 2012: CC error! PID: 0xcc Expected: 7, is 12
Fri Jan 6 13:09:52 2012: CC error! PID: 0x1 Expected: 5, is 7
Fri Jan 6 13:09:52 2012: CC error! PID: 0x11 Expected: 15, is 0
^C
exiting...
Fri Jan 6 13:10:06 2012: PCAP: recv:10691, drop:0, ifdrop:0
Fri Jan 6 13:10:06 2012: PID: 0x14, packets: 2
Fri Jan 6 13:10:06 2012: PID: 0x11, packets: 23
Fri Jan 6 13:10:06 2012: PID: 0x1, packets: 45
Fri Jan 6 13:10:06 2012: PID: 0xcc, packets: 113
Fri Jan 6 13:10:06 2012: PID: 0x0, packets: 113
Fri Jan 6 13:10:06 2012: PID: 0x1f69, packets: 574
Fri Jan 6 13:10:06 2012: PID: 0x324, packets: 3110
Fri Jan 6 13:10:06 2012: PID: 0x2c0, packets: 67483
Caveats
This is a piece of horrible code but it does what it promises. Bugfixes and refactoring welcome :)
License
MIT License. Copyright 2012 Tarko Tikan.