Search found 3 matches

by Diana
Mon Dec 07, 2009 1:52 am
Forum: H.323 (Packet-Switched Multimedia Systems)
Topic: Help parsing OLC info in H225 messages
Replies: 4
Views: 10181

Re: Help parsing OLC info in H225 messages

Yes the change I made does apparently trick the compiler into thinking it is a different type. When I decode a message with debug printing enabled it calls it an OpenType and then I can decode that as an OpenLogicalChannel_PDU. Without that change it just considers it a sequence of octet stream but ...
by Diana
Fri Dec 04, 2009 11:22 pm
Forum: H.323 (Packet-Switched Multimedia Systems)
Topic: Help parsing OLC info in H225 messages
Replies: 4
Views: 10181

Re: Help parsing OLC info in H225 messages

I agree decoding/reencoding is a better way to go but I'm somewhat constrained by the tools at hand. Regardless I did figure out a change to the h225 asn file that when compiled would generate a .c and .h file that allowed me to decode the fastStart elements: < fastStart SEQUENCE OF OCTET STRING OPT...
by Diana
Thu Dec 03, 2009 10:12 pm
Forum: H.323 (Packet-Switched Multimedia Systems)
Topic: Help parsing OLC info in H225 messages
Replies: 4
Views: 10181

Help parsing OLC info in H225 messages

In the H225 messages Setup, Connect, ... the fastStart items are parsed as a sequence of octet streams. Each of these is actually an OLC but can't seem to parse those. The few formats that I have definitions for seem easy enough to parse but I'd like definitions for all of them. The ones I found are...