On 17 Dec, 2010, at 16:48, Ming wrote: > Regarding the delay, I am not aware of such problem before and it can > be caused by so many things. So it would be great if you can reproduce > it using pjsua or if you can pinpoint which instruction or function > that causes the delay so that we can fix it. It's about two seconds, right after hitting Enter in pjsua to make a call. It's happening on the main thread, so my app linked against pjsua-lib freezes as pjsua here. Make call: sip:5271762 at sipgate.co.uk 16:37:09.537 pjsua_media.c Opening sound device PCM at 16000/1/20ms [here's the delay visible with the naked eye when calling] 16:37:11.548 coreaudio_dev. core audio stream stopped 16:37:11.549 pjsua_media.c Opening sound device PCM at 44100/1/20ms 16:37:11.552 ec0x1003268b0 AEC created, clock_rate=44100, channel=1, samples per frame=882, tail length=200 ms, latency=20 ms 16:37:12.564 coreaudio_dev. core audio stream started 16:37:12.564 pjsua_call.c Making call with acc #2 to sip:5271762 at sipgate.co.uk 16:37:12.564 pjsua_media.c Media index 0 selected for call 0 16:37:12.565 pjsua_core.c TX 1101 bytes Request msg INVITE/cseq=25820 (tdta0x10091f400) to UDP 217.10.79.23:5060: INVITE sip:5271762 at sipgate.co.uk SIP/2.0 And here's the same call from pjsua build with portaudio support. Make call: sip:5271762 at sipgate.co.uk 16:47:34.866 pjsua_media.c Opening sound device PCM at 16000/1/20ms 16:47:34.901 ec0x10031c4a0 AEC created, clock_rate=16000, channel=1, samples per frame=320, tail length=200 ms, latency=20 ms 16:47:35.914 pjsua_call.c Making call with acc #2 to sip:5271762 at sipgate.co.uk 16:47:35.915 pjsua_media.c Media index 0 selected for call 0 16:47:35.916 pjsua_core.c TX 1100 bytes Request msg INVITE/cseq=8124 (tdta0x101015400) to UDP 217.10.79.23:5060: INVITE sip:5271762 at sipgate.co.uk SIP/2.0 I understand that I probably can make call from the secondary thread (can I?), but as there wasn't such problem with portaudio, maybe we could do something to eliminate the delay? Without that there will be more unnecessary complications with call management in all apps that use pjsua-lib API. Alexei
