ITU G.723 codec.
On Wed, Oct 15, 2008 at 8:56 AM, Rawshan Iajdani <iajdani at provati.com>wrote:
> What library of g.723.1 are u using???
>
>
>
> *From:* pjsip-bounces at lists.pjsip.org [mailto:
> pjsip-bounces at lists.pjsip.org] *On Behalf Of *Samiul Aftad Chowdhury
> *Sent:* Tuesday, October 14, 2008 7:35 PM
> *To:* pjsip list
> *Subject:* Re: [pjsip] G723 Pjsip Symbian problen in encoding
>
>
>
> Could you please suggest the required values for following variables
> 1. bytes per frame
> 2. encoded bytes per frame
> 3. samples per frame
>
> also the required values in default_attr()
>
> Regards,
> Aftad
>
>
> On Tue, Oct 14, 2008 at 1:39 PM, Nanang Izzuddin <nanang at pjsip.org> wrote:
>
> Hi,
>
> Sorry, I know nothing about the MIPS of ARM processors and ITU code
> for G.729 ('proof-of-concept' code is usually not optimized). So
> perhaps you should just give it a try.
>
> Regards,
> nanang
>
>
> On Tue, Oct 14, 2008 at 4:33 PM, Samiul Aftad Chowdhury
>
> <symbian.voip at gmail.com> wrote:
> > Thanks for your reply Nanang.
> > I had doubt about the CPU load issue but so far decoding was working
> > smoothly I thought there might be other issues that I might have missed.
> As
> > I had a miss conception that encoding and decoding will use similar
> amount
> > of CPU load, finally I'v understood, decoding takes far less CPU
> utilization
> > then encoding hence it was working fine. I don't have any clue where can
> I
> > get more optimized g723 codec for ARM processors and optimizing the ITU
> > codec is beyond my understanding of the code.
> >
> > After going through some of the codecs datasheets it says
> > for G.723.1 it takes approximatly:
> > Encoder 5 1/3k bps requires 18 MIPS
> > Encoder 6.4k bps requires 26 MIPS
> > Decoder (5 1/3k bps or 6.4k bps) requires 2 MIPS
> >
> > where G.729 Annex A Encoder/Decoder requires 10.8 MIPS
> >
> > will it be suitable to use the ITU code for G.729 with pjsip-symbian ??
> >
> > Regards,
> > Aftad
> >
> > On Mon, Oct 13, 2008 at 4:25 PM, Nanang Izzuddin <nanang at pjsip.org>
> wrote:
> >>
> >> Hi,
> >>
> >> Wouldn't it be a CPU load problem? Since G.723.1 is a high complexity
> >> codec, I guess you need a very optimized G.723.1 implementation (for
> >> ARM processor/Symbian platform).
> >>
> >> Regards,
> >> nanang
> >>
> >>
> >> On Mon, Oct 13, 2008 at 7:43 PM, Samiul Aftad Chowdhury
> >> <symbian.voip at gmail.com> wrote:
> >> > Hi,
> >> >
> >> > I am trying to use the ITU G723.1 codec in pjsip, so far I it is
> working
> >> > perfect and voice is clear for windows, using the
> >> > pjsua_vc.exe. When I was trying to use the same codec for
> symbian_ua_gui
> >> > it
> >> > was not giving the same
> >> > expected result.
> >> >
> >> > I have tried to debug this and found that in symbian some how the
> >> > problem is
> >> > in the encode() function and when the encode function is enabled
> >> > the decoder function is never called.
> >> > when I tried with disableing the encode() function then the decoder
> >> > function
> >> > is working smoothly
> >> > and I can hear the voice from the symbian_ua_gui of the other party.
> >> >
> >> > I am attaching the g723.c file please check if i am wrong in any
> place.
> >> >
> >> > Symbian 9.1 3rd ed
> >> > Not using the aps
> >> > Phone E65 , N95
> >> >
> >> >
> >> > best regards,
> >> > Aftad
> >> >
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> >> >
> >> >
> >>
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