Calling pjlib from unknown/external thread

[Jason.Chen@xxxxxxxxxxxx (Jason Chen 陈剑桥)]

Dear all
   I want to call  ?pjmedia_transport_send_rtp()?,  and I get the error message:
06-13 08:34:13.949: A/libc(3106): ../src/pj/os_core_unix.c:674: pj_thread_this: assertion "!"Calling pjlib from unknown/external thread. You must " "register external threads with pj_thread_register() " "before calling any pjlib functions."" failed
06-13 08:34:13.949: A/libc(3106): Fatal signal 11 (SIGSEGV) at 0xdeadbaad (code=1), thread 3159 (Thread-329)

Then I change my code:

void my_send_rtp(){
    if(!thread_registered && !pj_thread_is_registered())
    {
             pj_thread_desc desc;
        pj_bzero(desc, sizeof(desc));
                   pj_thread_t t;
        if (pj_thread_register(NULL,desc,&t) == PJ_SUCCESS)
        {
            thread_registered = PJ_TRUE;
        }
    }


    if (!my_call_med->call || !my_call_med->call->inv || !my_call_med->tp) {
         return;
    }

         pjmedia_transport_send_rtp(my_call_med->tp, "pkt", strlen("pkt"));
}


I get another error?

../src/pjsua-lib/pjsua_aud.c:639:9: error: 'thread_registered' undeclared (first use in this function)
     if(!thread_registered && !pj_thread_is_registered())
         ^
../src/pjsua-lib/pjsua_aud.c:639:9: note: each undeclared identifier is reported only once for each function it appears in
../src/pjsua-lib/pjsua_aud.c:643:15: error: storage size of 't' isn't known
   pj_thread_t t;


how can I do if I want to call pjmedia_transport_send_rtp()?


Best Regards,
jason.chen

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