Hello again, Sorry to keep hassling the message board (thanks Benny and Nanang for your help so far), but I'm stumped and don't know how to proceed. I'm trying to get pjsip working on an AT91SAM9263-EK board (200MHz ARM core). I have the code compiled and running now, but the sound is quite distorted. Maybe some of this information will enable someone to give me the key insight that will make everything work... I hope so!! I'm using the Angstrom linux distribution obtained through OpenEmbedded (unstable branch) and am currently using kernel 2.6.30. The Pjsip I am using is the 1.5 release as seen on the pjsip home page. Things I know so far: 1) According to this thread (http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/2007-December/000966.html) the target architecture can work!!! (I've tried the SCHED_RR trick, but to no avail) 2) The test results returned by mips-test indicate that I should be able to run on this architecture quite comfortably with the right parameters 3) According to configure log, it's picked up the alsa drivers OK (have installed alsa-dev package) but only /dev/dsp works in practice (seg-fault if I try to use any other devices) 4) aplay is only happy with stereo, 16KHz, S16_LE .wav files 5) .wav files play back nicely in pjsip 6) Tones get generated nicely in pjsip (samples/playsine works fine) 7) Connecting simplua to an Asterix pbx gives good one-way audio, but won't give 2-way audio - connecting to a single bi-directional port instead of one receive and one playback caused a seg fault. I've tried to distil down to the simplest test, so all I'm doing is opening pjsua, then doing 'cc 0 0'. If I understand right, this should be purely a test of media and conference bridge stuff and shouldn't care about any network considerations. I am also using native compilation at the moment to ensure there aren't any problems introduced by cross compilation settings. Unfortunately, whenever I try to record from pjsua I end up with an empty wav file - the sound distortion I'm hearing is a rapid clicking (5-10Hz, I'd say) which plays continuously over any other audio which is present. All tests done with 'pjsua --ec-tail 0 --playback-dev 3 --capture-dev 3 --add-codec pcma --quality 3' + '' => Distorted + '-- stereo' => Distorted + '--clock-rate 8000' => No audio + '--clock-rate 8000 --stereo' => Distorted + '--clock-rate 16000' => Distorted + '--clock-rate 16000 --stereo' => Distorted + '--clock-rate 8000 --snd-clock-rate 8000' => No audio + '--clock-rate 8000 --snd-clock-rate 8000 --stereo' => Distorted + '--clock-rate 16000 --snd-clock-rate 16000' => Distorted + '--clock-rate 16000 --snd-clock-rate 16000 --stereo' => Distorted + '--clock-rate 8000 --snd-clock-rate 16000' => Distorted + '--clock-rate 8000 --snd-clock-rate 16000 -- stereo' => Distorted + '--clock-rate 16000 --snd-clock-rate 8000' => No audio + '--clock-rate 16000 --snd-clock-rate 8000 --stereo' => Distorted I've attached a copy of my config_site.h file. Any help gratefully appreciated. Best Regards, John Martindale www.practicalcontrol.com -------------- next part -------------- A non-text attachment was scrubbed... Name: config_site.h Type: text/x-chdr Size: 974 bytes Desc: not available URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20091207/f18514bc/attachment.h>
