On Thu, Nov 19, 2009 at 6:45 PM, John Martindale <jm at practicalcontrol.com> wrote: > Hi all, > > I'm trying to port pjsip (version 1.4.5) to an embedded target - AT91SAM9263 > Evaluation Board - which has a built in AC97 codec. [snip] > > So... > arecord works (finally, after much hacking!), if I supply parameters > -fS16_LE -c2 tmp.wav (stereo, 16bit) > aplay works, if I play something recorded as above - e.g. mono recordings > are refused > So that's probably the reason, i.e. the device only wants to work with stereo. Try running pjsua with the following options and ee if it works: $ pjsua --stereo --playback-dev=3 --capture-dev=3 You may also need to set --clock-rate and --snd-clock-rate to 8000 to minimize resampling. Cheers Benny > Using pjsip-apps/bin/samples/<platform>/auddemo: > l (List Devices) comes up with the following > 0: PA [Atmel AC97: Atmel AC97 (hw:0,0)] (2/2) > 1: PA [dmix] (0/2) > 2: PA [default] (2/2) > 3: PA [/dev/dsp] (16/16) > > If I do 't 3 3 8000 10 2', everything is OK > If I do 'p 3 tmp.wav', eveything is OK > If I use device 1 for the test it complains about number of channels (I > guess that's the 0 in 0/2) > If I use device 0 or 2, I get a kernel Oops: > > [ 3456.950000] Unable to handle kernel paging request at virtual address > 33cd87fe > [ 3456.950000] pgd = c3b54000 > [ 3456.960000] [33cd87fe] *pgd=00000000 > [ 3456.960000] Internal error: Oops: 1 [#1] PREEMPT > [ 3456.960000] Modules linked in: ext3 jbd rfcomm hidp l2cap bluetooth > [ 3456.960000] CPU: 0 Not tainted (2.6.28 #1) > [ 3456.960000] PC is at set_page_dirty+0x24/0xbc > [ 3456.960000] LR is at set_page_dirty_balance+0x18/0x48 > <lots more debug - not sure if any of it helps here> > > Using the pjsip demo app produces a similar kernel error after printing: > 10:54:34.373 pjsua_media.c Opening sound device PCM at 16000/1/20ms > > > Practical Control Ltd > 448 Brightside Lane > Sheffield > S9 2SP > T: 0114 2561888 > F: 0114 2617052 > www.practicalcontrol.com > > Registered in England: 4117809 > > This email and any files transmitted with it are confidential and intended > solely for the use of the individual or entity to whom they are addressed. > This message contains confidential information and is intended only for the > individual named. If you are not the named addressee you should not > disseminate, distribute or copy this e-mail. Please notify the sender > immediately by e-mail if you have received this e-mail by mistake and delete > this e-mail from your system. If you are not the intended recipient you are > notified that disclosing, copying, distributing or taking any action in > reliance on the contents of this information is strictly prohibited. > > Any views or opinions presented in this email are solely those of the author > and do not necessarily represent those of the company. Employees of > Practical Control are expressly required not to make defamatory statements > and not to infringe or authorise any infringement of copyright or any other > legal right by email communications. Any such communication is contrary to > company policy and outside the scope of the employment of the individual > concerned. The company will not accept any liability in respect of such > communication, and the employee responsible will be personally liable for > any damages or other liability arising. > > _______________________________________________ > 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 > > -- Best regards, Benny
