Question #229419 on rohc changed: https://answers.launchpad.net/rohc/+question/229419
Wei Wang gave more information on the question: Hi Didier, I found the reason that RTP profile was skipped because the port 1286 is not in the list of reserved ports for RTP. Looks like there is no a rigid definitions of assigned port numbers in RFC3095. So I added this number in the rtp port list. The result is not expected. Headers are not compressed at all. Can you please look at the log below and see what happened? 05-23 11:37:13.340 20184 20337 I ip.c : ip_get_totlen(): IPV4 header len = 56 bytes) 05-23 11:37:13.340 20184 20337 I rohc_comp.c: rohc_compress(): size of uncompressed packet = 56 bytes, 0 05-23 11:37:13.340 20184 20337 I rohc_comp.c: rohc_compress(): line394: proto = 17 05-23 11:37:13.340 20184 20337 I rohc_comp.c: rohc_compress(): try to find the best profile for packet with transport protocol 17, 0 05-23 11:37:13.340 20184 20337 I rohc_comp.c: c_get_profile_from_packet(): comp->profiles[0] = 1 05-23 11:37:13.340 20184 20337 I ip.c : ip_is_fragment(): is_fragment = 0, 0, 0 05-23 11:37:13.340 20184 20337 I rohc_comp.c: c_get_profile_from_packet(): UDP port = 1286 05-23 11:37:13.340 20184 20337 I rohc_comp.c: c_get_profile_from_packet(): returns 0x01 05-23 11:37:13.340 20184 20337 I rohc_comp.c: rohc_compress(): using profile 'RTP / Compressor' (0x0001) 05-23 11:37:13.340 20184 20337 I rohc_comp.c: rohc_compress(): compress the packet #538, esize = 40 05-23 11:37:13.340 20184 20337 I ip.c : ip_get_totlen(): IPV4 header len = 56 bytes) 05-23 11:37:13.340 20184 20337 I rohc_comp.c: rohc_compress(): ROHC size = 56 (feedback = 0, header = 40, payload = 16), output buffer size = 2048 -- You received this question notification because you are a member of ROHC Team, which is an answer contact for rohc. _______________________________________________ Mailing list: https://launchpad.net/~rohc Post to : [email protected] Unsubscribe : https://launchpad.net/~rohc More help : https://help.launchpad.net/ListHelp

