Hi all. I am using ROHC for building a multiplexing+header compression protocol (https://github.com/TCM-TF/simplemux/tree/develop). I have been able to run ROHC without problems in Unidirectional mode. However, I have some questions regarding Bidirectional Optimistic mode. I decompress this way: status = rohc_decompress3 (decompressor, rohc_packet_d, &ip_packet_d, &rcvd_feedback, &feedback_send); And then I check if feedback_send is not empty. If so, I send it inside a UDP packet to the remote compressor. When it arrives, I take it and deliver it to the compressor using rohc_comp_deliver_feedback2 ( compressor, rohc_packet_d ) I obtain these messages, so it seems that the feedback is working: [rohc_comp.c:3954 rohc_comp_deliver_feedback2()] deliver 7 byte(s) of feedback to the right context [rohc_comp.c:3982 rohc_comp_deliver_feedback2()] feedback found (header = 1 bytes, data = 6 bytes) [rohc_comp.c:3782 __rohc_comp_deliver_feedback()] deliver 6 byte(s) of feedback to the right context [rohc_comp.c:3819 __rohc_comp_deliver_feedback()] feedback CID = 0 [rohc_comp.c:3823 __rohc_comp_deliver_feedback()] feedback size = 5 [c_generic.c:975 c_generic_feedback()] FEEDBACK-2 received [c_generic.c:1157 c_generic_feedback_2()] STATIC-NACK received for CID 0 [rohc_comp.c:3869 __rohc_comp_deliver_feedback()] FEEDBACK-2 data successfully handled These are my questions: ¿Is it correct to send the feedback in a dedicated UDP packet? ¿What is the objective of rcvd_feedback? I mean, if I send the feedback information in separate packets, I can identify it as feedback. ¿Is it better to piggyback the feedback in compressed packets? Thanks in advance! Jose Saldana University of Zaragoza
_______________________________________________ Mailing list: https://launchpad.net/~rohc Post to : [email protected] Unsubscribe : https://launchpad.net/~rohc More help : https://help.launchpad.net/ListHelp
