Hello, Can someone kindly help me out. I'm new to pjsip and speech coding. It'll be great if someone can point me in the right direction to solve this problem. I guess many people would have already deployed PJSIP + iLBC on ARM processors, probably even on DaVinci platforms. Did anyone of you face similar problem (mentioned in my previous mail)? What was the solution? I'm guessing this is a typical problem which can probably be fixed by some minor change in compilation flags/configuration/command line parameters. I feel so because I have not changed anything in the code. The same code runs perfectly on a Linux desktop, but gives this problem on DaVinci platform. Kindly help me out. Warm regards, Kapil On Wed, Apr 1, 2009 at 6:26 PM, Kapil Pendse <kapil.pendse at gmail.com> wrote: > Hello, > I've compiled the pjproject 1.0.1 for TI DaVinci DM355. Initially there was > problem in the audio. Everything was jittery and nothing could be made out. > Then I used the following method to compile: > > $ ./aconfigure --host=armv5tl-montavista-linuxeabi CFLAGS='-O2 -msoft-float > -DNDEBUG' --disable-floating-point > $ make ARCH=arm CROSS_COMPILE=arm_v5t_le- > > And executed pjsua as: > > $ ./pjsua-armv5tl-montavista-linux-gnueabi --app-log-level=2 --stereo > --ec-tail=0 --add-codec pcmu --dis-codec speex --dis-codec ilbc --dis-codec > GSM --dis-codec G722 --clock-rate=8000 --snd-clock-rate=8000 > > Then the audio was clean. Since --add-codec pcmu was used, PCMU codec was > used by default. > > Then I changed to iLBC by running the same pjsua build as: > > $ ./pjsua-armv5tl-montavista-linux-gnueabi --app-log-level=2 --stereo > --ec-tail=0 --dis-codec pcmu --dis-codec speex --add-codec ilbc --dis-codec > GSM --dis-codec G722 --clock-rate=8000 --snd-clock-rate=8000 > > Now again the audio is very jittery, just like the first problem I had > faced (described above). I'm not sure if "jittery" is the correct word to > describe it. I can barely make out that someone is speaking from the other > end of the call, but cannot understand what it is... I'm new to VOIP and > PJSIP so kindly help me out. > > I even changed the default iLBC mode from 30 to 20: > > pjmedia/src/pjmedia-codec/ilbc.c: > //#define DEFAULT_MODE 30 > #define DEFAULT_MODE 20 > > pjsip/include/pjsua-lib/pjsua.h > #ifndef PJSUA_DEFAULT_ILBC_MODE > //# define PJSUA_DEFAULT_ILBC_MODE 30 > # define PJSUA_DEFAULT_ILBC_MODE 20 > #endif > > I also played around with the --ec-tail=X command line parameter. There is > some change in way the received audio plays out but it is not at all > understandable. > > Kindly help me out. > > Best regards, > Kapil Pendse > TekKraft > > > -- > "The Power to Imagine, is The Power to Create!" > -TTux > -- "The Power to Imagine, is The Power to Create!" -TTux -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20090402/5c79cd7a/attachment-0001.html>
