I'm not well versed w/ voip, and am looking for a voip lib that will allow me to easily grab the voice stream and wrap it into my own application layer protocol, get the voice stream from point a to piont b, and unwrap it at the other end. So, basically make a point-to-point voip call, yet ... use a voice stream to help me see how well my app layer protocol performs. Is pjsip something I could easily do this with? If so, any pointers? If not, any recommendations? Any help much appreciated.

> I'm not well versed w/ voip, and am looking for a voip lib that will > allow me to easily grab the voice stream and wrap it into my own > application layer protocol, get the voice stream from point a to piont > b, and unwrap it at the other end. > > So, basically make a point-to-point voip call, yet ... use a voice > stream to help me see how well my app layer protocol performs. > > Is pjsip something I could easily do this with? If so, any pointers? > If not, any recommendations? > > Any help much appreciated. Ok, I might be misunderstanding you, but tell me if this helps;- Have a look at some of the test apps like the sine wave generator. PJSip has kind of a patch bay architecture that lets you define end points (like audio devices, sip calls, tone generators) and lets you arbitrarily patch them into each other. The sine generator is instructive in this case. It should be fairly straight forward to adapt that code into a generic end point template you can use to provide your own data stream. You basically create an end point, register it, then use a call to patch it in via the conference bridge. Its a rather powerful arangement. On 05/08/2009, at 10:49 AM, Richard Langly wrote: > > _______________________________________________ > Visit our blog: http://blog.pjsip.org > > pjsip mailing list > pjsip@lists.pjsip.org > http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org =================================== Shayne O'Neill Development Mobile, Web and Business process integration. shayne.oneill@gmail.com 0400247091 Ask me about how Alfresco can help your business grow.

Ugh, dumb question time, I'm grep'ing for anything 'sine wave generator' and don't know which example your talking about here. On Tue, Aug 4, 2009 at 10:18 PM, Shayne O'Neill<shayne.oneill@gmail.com> wrote: >> I'm not well versed w/ voip, and am looking for a voip lib that will >> allow me to easily grab the voice stream and wrap it into my own >> application layer protocol, get the voice stream from point a to piont >> b, and unwrap it at the other end. >> >> So, basically make a point-to-point voip call, yet ... use a voice >> stream to help me see how well my app layer protocol performs. >> >> Is pjsip something I could easily do this with? If so, any pointers? >> If not, any recommendations? >> >> Any help much appreciated. > > Ok, I might be misunderstanding you, but tell me if this helps;- > > Have a look at some of the test apps like the sine wave generator. PJSip has > kind of a patch bay architecture that lets you define end points (like audio > devices, sip calls, tone generators) and lets you arbitrarily patch them > into each other. > > The sine generator is instructive in this case. It should be fairly straight > forward to adapt that code into a generic end point template you can use to > provide your own data stream. > > You basically create an end point, register it, then use a call to patch it > in via the conference bridge. Its a rather powerful arangement. > > On 05/08/2009, at 10:49 AM, Richard Langly wrote: >> >> _______________________________________________ >> Visit our blog: http://blog.pjsip.org >> >> pjsip mailing list >> pjsip@lists.pjsip.org >> http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org > > =================================== > Shayne O'Neill Development > Mobile, Web and Business process integration. > shayne.oneill@gmail.com 0400247091 > Ask me about how Alfresco can help your business grow. > > > _______________________________________________ > Visit our blog: http://blog.pjsip.org > > pjsip mailing list > pjsip@lists.pjsip.org > http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org >

Have a look in pjsip-apps / src / samples Sent from my iPhone On 05/08/2009, at 11:47 AM, Richard Langly <richard.ringo.langly@gmail.com > wrote: > Ugh, dumb question time, I'm grep'ing for anything 'sine wave > generator' and don't know which example your talking about here. > > On Tue, Aug 4, 2009 at 10:18 PM, Shayne O'Neill<shayne.oneill@gmail.com > > wrote: >>> I'm not well versed w/ voip, and am looking for a voip lib that will >>> allow me to easily grab the voice stream and wrap it into my own >>> application layer protocol, get the voice stream from point a to >>> piont >>> b, and unwrap it at the other end. >>> >>> So, basically make a point-to-point voip call, yet ... use a voice >>> stream to help me see how well my app layer protocol performs. >>> >>> Is pjsip something I could easily do this with? If so, any pointers? >>> If not, any recommendations? >>> >>> Any help much appreciated. >> >> Ok, I might be misunderstanding you, but tell me if this helps;- >> >> Have a look at some of the test apps like the sine wave generator. >> PJSip has >> kind of a patch bay architecture that lets you define end points >> (like audio >> devices, sip calls, tone generators) and lets you arbitrarily patch >> them >> into each other. >> >> The sine generator is instructive in this case. It should be fairly >> straight >> forward to adapt that code into a generic end point template you >> can use to >> provide your own data stream. >> >> You basically create an end point, register it, then use a call to >> patch it >> in via the conference bridge. Its a rather powerful arangement. >> >> On 05/08/2009, at 10:49 AM, Richard Langly wrote: >>> >>> _______________________________________________ >>> Visit our blog: http://blog.pjsip.org >>> >>> pjsip mailing list >>> pjsip@lists.pjsip.org >>> http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org >> >> =================================== >> Shayne O'Neill Development >> Mobile, Web and Business process integration. >> shayne.oneill@gmail.com 0400247091 >> Ask me about how Alfresco can help your business grow. >> >> >> _______________________________________________ >> Visit our blog: http://blog.pjsip.org >> >> pjsip mailing list >> pjsip@lists.pjsip.org >> http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org >> > > _______________________________________________ > Visit our blog: http://blog.pjsip.org > > pjsip mailing list > pjsip@lists.pjsip.org > http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org

I was able to get samples that play wav files and other to work, but the playsine app didn't work for me. I get the following error. I'm running gentoo on a quad-core. Any thoughts as to what I'm doing wrong here? I don't see a config file anywhere's that I'm missing. /pjproject-1.3/pjsip-apps/bin/samples/x86_64-unknown-linux-gnu$ playsine 2 23:37:23.128 os_core_unix.c pjlib 1.3 for POSIX initialized 23:37:23.198 pa_dev.c PortAudio sound library initialized, status=0 23:37:23.198 pa_dev.c PortAudio host api count=2 23:37:23.198 pa_dev.c Sound device count=14 23:37:23.198 pjlib select() I/O Queue created (0x2288ed8) 23:37:23.199 pa_dev.c PA message: Expression 'SetApproximateSampleRate( pcm, hwParams, sr )' failed in 'src/../../../portaudio/src/hostapi/alsa/pa_linux_alsa.c', line: 1291 23:37:23.199 pa_dev.c PA message: Expression 'PaAlsaStreamComponent_InitialConfigure( &self->playback, outParams, self->primeBuffers, hwParamsPlayback, &realSr )' failed in 'src/../../../portaudio/src/hostapi/alsa/pa_linux_alsa.c', line: 1865 23:37:23.199 pa_dev.c PA message: Expression 'PaAlsaStream_Configure( stream, inputParameters, outputParameters, sampleRate, framesPerBuffer, &inputLatency, &outputLatency, &hostBufferSizeMode )' failed in 'src/../../../portaudio/src/hostapi/alsa/pa_linux_alsa.c', line: 1986 Unable to open sound device: Invalid sample rate [code=469996]