[asterisk-dev] No Read Events in oh323_read() from fdno 2 -- But from fdno 0 Instead

[Robin J. Russell]

I am working with chan_h323.c, and trying to add video. I have added quite a
bit of initialization, including opening a couple of extra streams,  in
__oh323_update_info() --

 

        if (pvt->update_rtp_info > 0) {

                if (pvt->rtp) {

                ast_log(LOG_DEBUG, "pvt->update_rtp_info....\n");

                        ast_jb_configure(c, &global_jbconf);

                        c->fds[0] = ast_rtp_fd(pvt->rtp);

                        c->fds[1] = ast_rtcp_fd(pvt->rtp);

                        if (pvt->vrtp) {

                                c->fds[2] = ast_rtp_fd(pvt->vrtp);

                                c->fds[3] = ast_rtcp_fd(pvt->vrtp);

                        }

                        ast_queue_frame(pvt->owner, &ast_null_frame);   //
Tell Asterisk to apply changes

                }

                pvt->update_rtp_info = -1;

        }

 

I also do this in __oh323_rtp_create() --

        pvt->vrtp = ast_rtp_new_with_bindaddr(sched, io, 1, 0, our_addr);

 

Yet, nothing ever comes in case 2 below.

 

static struct ast_frame *oh323_read(struct ast_channel *c)

{

        struct ast_frame *fr;

        struct oh323_pvt *pvt = (struct oh323_pvt *)c->tech_pvt;

        ast_mutex_lock(&pvt->lock);

        __oh323_update_info(c, pvt);

        switch(c->fdno) {

        case 0:

                fr = oh323_rtp_read(pvt,0);

                break;

        case 1:

                if (pvt->rtp)

                        fr = ast_rtcp_read(pvt->rtp);

                else

                        fr = &ast_null_frame;

                break;

        case 2:

                ast_log(LOG_ERROR, "Video read\n");

                fr = oh323_rtp_read(pvt,1);

                break;

        case 3:

                ast_log(LOG_ERROR, "Video rtcp read\n");

                if (pvt->vrtp)

                        fr = ast_rtcp_read(pvt->vrtp);

                else

                        fr = &ast_null_frame;

                break;

        default:

                ast_log(LOG_ERROR, "Unable to handle fd %d on channel %s\n",
c->fdno, c->name);

                fr = &ast_null_frame;

                break;

        }

        ast_mutex_unlock(&pvt->lock);

        return fr;

}

 

I am puzzled that I am getting only events from only fdno==0, but not fdno
== 2. All of my incoming data, both voice and video, and coming from fds[0].


 

I see that chan_sip does not suffer from this.

 

Has anybody had a similar problem getting read events from the correct
stream?? Could somebody please let me know what I need to do to do to get
the right data to read from the right stream?

 

Thanks

 

R. Russell

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