S. M. Nazmul Hasan (Opu) wrote: > > > On Tue, Sep 23, 2008 at 7:34 PM, Fabio Pietrosanti (naif) > <lists at infosecurity.ch> wrote: > > S. M. Nazmul Hasan (Opu) wrote: > > Dear Nanang, > > > > If there is g729 already in APS as Fabio refered in previous > mail , do > > i need any other g729 codec to integrate (for better > performance)? or > > APS is performing ok. > > Opu, > > now PJSIP use APS to get compressed sample, convert it to PCM and then > compress it again with the appropriate "software implemented codec" > available in PJMEDIA . > > To use the hardware codecs (for free) available on S60 platform > you need > to provide an integration of Nokia APS directly inside PJMEDIA. > > This will cause some features not to be able anymore (like call > conferencing) but will give you for free and hardware optimized G729 > codec that otherwise you would need to buy and use in software > mode and > pay royalties. > > If you want to work on that kind of integration please let me know > > > you are talking about 2nd option . right? i just need to do > conversation between two people (phone call) not conferencing. so can > you please tell me what will be the easier way to do this? and how? The easier was is to use the current codebase integrating your own G729 implementation (because you cannot use Intel IPP G729 that's not available for Symbian OS). However with this path you have to: - Integrate a G729 implementation (it's up to you to find it and adapt it) - Setup an agreement with Voiceage for G729 usage (minimum startup cost of something like 5000 USD) - Pay royalties for each piece distributed (even unpaid one) So easier does not mean cheaper. The cheaper and most clean solution it's the one described by Nanang, using S60 Nokia APS to directly manage not ONLY the Audio I/O but also the coding/decoding: http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/2008-September/004868.html. This will provide you G729 and AMR-NB codec for free along with hardware acceleration (save battery power). This means integrating S60 Nokia APS directly into PJMEDIA framework, providing a strong enanchment of PJSIP support for S60 Symbian OS based mobile phones. Fabio
