Hi Bill, Thanks for your swift response! Is this it even possible to switch audio devices during an ongoing call? I will look into this. Best regards, Tom Op 22/09/14 18:53 schreef Bill Gardner <billg at wavearts.com>: >Hi Tom, > >The incoming call is causing an interruption which is stopping pjsip's >core audio stream (see coreaudio_dev.c). Your intuition is correct, >pjmedia uses the audio device to clock media processing, so while the >stream is stopped, media doesn't flow. I've never tried to run pjmedia >while a regular iphone call is in progress, perhaps you can use the null >audio device mode during the interruption. > >Regards, > >Bill > > >On 9/22/14 11:54 AM, Tom van der Geer wrote: >> Hello, >> >> I?m developing an iOS Voip App based on PJSIP which makes an outbound >> call. When the App is "in call" the iPhone can still receive incoming >> calls. iOS handles this by taking away all audio in- and outputs from >>the >> application and sending a broadcast message >> (?OnAudioSessionInterruptionNotification"). In the case an incoming call >> is received I would like to let PJMEDIA generate a tone (using the tone >> generator) and play this to the callee. >> >> I?ve got everything in place; the tone generator plays the tone, the >>event >> is captured, the conference is configured correctly. But for some reason >> the callee does not hear anything. >> >> I've tested the generated tone by injecting it in the conference during >>an >> active call, but while I?d expect only the microphone would be >>forcefully >> removed from the conference by iOS when a call comes in, I would still >> expect the generated tone to be played out. Even reconnecting the >>tonegen >> to the conference (pjsua_conf_connect) and restarting the conference >> (ca_stream_start) does not solve the issue >> >> Does anybody know what causes this behaviour? Abd even better; how to >>make >> the tone generator play out to the callee? >> >> Could it be that PJMEDIA relies on some sample clock of iOS which is not >> available anymore when a call comes in? >> >> I?m using PJSIP v2.1.0 and using coreaudio_dev.m (rev.4617) with some >> alterations regarding the handling of interruptions. >> >> Any help is appreciated! >> >> Best regards, >> >> Tom >> >> >> >> >> _______________________________________________ >> Visit our blog: http://blog.pjsip.org >> >> pjsip mailing list >> pjsip at lists.pjsip.org >> http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org > > >_______________________________________________ >Visit our blog: http://blog.pjsip.org > >pjsip mailing list >pjsip at lists.pjsip.org >http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org
