Hello Benny, Last week if been trying to make the "Simple PJSUA" without the soundcard, but with a "Memory/Buffer-based Capture Port" and a "Memory/Buffer-based Playback Port", but it don't get it working, and also i don't really know if about what i do is correct. E.g. do i also have to create a conference bridge in the "Simple PJSUA" or is it already created in the PJSUA library. ALso i don's know about clearing and deleting what object at the end of the program. Is it possible that you modify the "Simple PJSUA" and send this file to me? For you it is propably very easy and propably does not take much time. I would very much appreciate it. When i have such a working example, i'm pretty sure that i then can create the things we like to make. So if possible modify the PJSUA in such a way that the audio in received into a callback function where the audio bytes are e.g. only send to 'cout'. And for the other audio direction, to have a callback funtion where e.g. you have an array of nn bytes which are cylic send into the pjsip stack. I hope you can help me. Regards, B. van Klinken -----Original Message----- From: pjsip-bounces@lists.pjsip.org [mailto:pjsip-bounces@lists.pjsip.org]On Behalf Of Benny Prijono Sent: 07-09-21 16:37 To: pjsip embedded/DSP SIP discussion Subject: Re: [pjsip] Example "Simple PJSUA" without soundcard B. van Klinken wrote: > Hello Benny, > > Thanks, i had seen the pages already, but somehow it's not clear for me how > to realize the requested functionality (my problem). > > I understood that i had to use a splitcomb. You don't have to, actually. You only need to use splitcomb when your application wants to *actively* get and put frames from/to pjmedia. Alternatively, you can let pjmedia get and put frames from/to your application instead. To do this, you'll just need to implement a pjmedia_port, and provide two callbacks (get_frame and put_frame) to be called by pjmedia. Then register your media port to the conference bridge by using pjsua_conf_add_port(). This in fact is the easiest way to manipulate audio frames. See playsine.c in samples directory for a simple pjmedia_port implementation. > I think that it must be for you only a couple of minutes and copy/paste to > modify the "Simple PJSUA", where it works with external data (e.g. store > info a memory bufer and read from another memory buffer. For a splitcomb sample, see stereo_demo() in pjsua_app.c. For pjmedia_port's that operate on buffer, see mem_capture.c and mem_player.c in pjmedia. There are a whole bunch of other pjmedia_port implementations to look at in pjmedia, of course. cheers, -benny _______________________________________________ Visit our blog: http://blog.pjsip.org pjsip mailing list pjsip@lists.pjsip.org http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org

B. van Klinken wrote: > Hello Benny, > > Last week if been trying to make the "Simple PJSUA" without the soundcard, > but with a "Memory/Buffer-based Capture Port" and a "Memory/Buffer-based > Playback Port", but it don't get it working, and also i don't really know if > about what i do is correct. E.g. do i also have to create a conference > bridge in the "Simple PJSUA" or is it already created in the PJSUA library. > ALso i don's know about clearing and deleting what object at the end of the > program. Conference bridge is always created internally by PJSUA-LIB, which Simple-PJSUA is based on. > Is it possible that you modify the "Simple PJSUA" and send this file to me? > For you it is propably very easy and propably does not take much time. There are couple of FAQ entries relevant to this, please check it out: This is about plugging a media port into PJSUA's conference bridge: http://www.pjsip.org/trac/wiki/FAQ#inband-dtmf This is about manipulating audio samples using callback: http://www.pjsip.org/trac/wiki/FAQ#audio-man You're probably right that it won't take much time for me to write a complete program for you, but once everybody asks for the same thing, I won't be having much time left to do anything else! So lets start with the samples from the FAQ and work on the issues. regards, -benny > I would very much appreciate it. When i have such a working example, i'm > pretty sure that i then can create the things we like to make. > > So if possible modify the PJSUA in such a way that the audio in received > into a callback function where the audio bytes are e.g. only send to 'cout'. > And for the other audio direction, to have a callback funtion where e.g. you > have an array of nn bytes which are cylic send into the pjsip stack. > > I hope you can help me. > > Regards, > > B. van Klinken