Nanang,

can we write a small web page with the description of how the APS could
be integrated inside the PJMEDIA Stack?

Mr. Karthik Babu of Cytrion proposed himself for the development of such
feature.

Imho it should be driven by your design consideration, so it would be
nice to have your support about it.

This implementation can provide to all pjsip users all the hardware
codecs support by S60 platform, including royalty based one  like G729
and AMR for free .

Fabio

Karthik Babu wrote:

Why not we should try implementing ITU - g729 instead of APS. I like to
think outside the box as I like my application should port to at least on
UIQ. Working on that and will keep you guys posted.

-----Original Message-----
From: pjsip-bounces@lists.pjsip.org [mailto:pjsip-bounces@lists.pjsip.org]
On Behalf Of Fabio Pietrosanti (naif)
Sent: Monday, October 20, 2008 10:08 PM
To: Karthik Babu
Cc: pjsip list
Subject: Re: [pjsip] g729 - symbian port

Nanang,

can we write a small web page with the description of how the APS could
be integrated inside the PJMEDIA Stack?

Mr. Karthik Babu of Cytrion proposed himself for the development of such
feature.

Imho it should be driven by your design consideration, so it would be
nice to have your support about it.

This implementation can provide to all pjsip users all the hardware
codecs support by S60 platform, including royalty based one  like G729
and AMR for free .

Fabio

Karthik Babu wrote:

APS

Visit our blog: http://blog.pjsip.org

pjsip mailing list
pjsip@lists.pjsip.org
http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org

Well,

First of all the Audio Subsystem must be different between S60 and UIQ
devices.

Second, also on S60 it will have to be different between S60 MR/FP1
(Audio Proxy Server) and S60 FP1/FP2 devices (Voip Audio Services API) .
Fortunately we are lucky that APS on S60 MR/FP1 it's supported while on
FP2 it's deprecated but it works.

Third, if you implement it in Software (instead of using APS) you will
have to pay royalties for each piece distributed.

This guide me to say that the more convenient things to do today is to
hook APS directly inside PJMEDIA in order to use *for free
*royalty-based codec like G729 and AMR, along with Hardware Acceleration
and Battery Saving.

Fabio

Rawshan Iajdani wrote:

Few things are really confusing here except the royalty fee that we got a
pay for g.729.

1. Why I need to worry about audio subsystem. As in encoder part I should
   take the 16 bit PCM bitstream and convert that to 10 byte g.729 bits and in
   decoder part I do the vice versa and let the pjmedia take care of the rest.
   There should not be anything else needed to be done. Am I right?

Also it should work for FP1 and FP2 as like as speex and gsm implemented.

Please shed some lights on that.

Thanks a lot.

Rawshan Iajdani

-----Original Message-----
From: pjsip-bounces@lists.pjsip.org [mailto:pjsip-bounces@lists.pjsip.org]
On Behalf Of Fabio Pietrosanti (naif)
Sent: Tuesday, October 21, 2008 4:39 PM
To: pjsip list
Subject: Re: [pjsip] g729 - symbian port

Well,

First of all the Audio Subsystem must be different between S60 and UIQ
devices.

Second, also on S60 it will have to be different between S60 MR/FP1
(Audio Proxy Server) and S60 FP1/FP2 devices (Voip Audio Services API) .
Fortunately we are lucky that APS on S60 MR/FP1 it's supported while on
FP2 it's deprecated but it works.

Third, if you implement it in Software (instead of using APS) you will
have to pay royalties for each piece distributed.

This guide me to say that the more convenient things to do today is to
hook APS directly inside PJMEDIA in order to use *for free
*royalty-based codec like G729 and AMR, along with Hardware Acceleration
and Battery Saving.

Fabio

Rawshan Iajdani wrote:

in

Visit our blog: http://blog.pjsip.org

pjsip mailing list
pjsip@lists.pjsip.org
http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org

Fabio,

I was trying to locate APS API for codecs. But seems like I have to become a
partner to get access to that particular category of API. Any
thoughts??????????????  :(

-----Original Message-----
From: pjsip-bounces@lists.pjsip.org [mailto:pjsip-bounces@lists.pjsip.org]
On Behalf Of Fabio Pietrosanti (naif)
Sent: Tuesday, October 21, 2008 4:39 PM
To: pjsip list
Subject: Re: [pjsip] g729 - symbian port

Well,

First of all the Audio Subsystem must be different between S60 and UIQ
devices.

Second, also on S60 it will have to be different between S60 MR/FP1
(Audio Proxy Server) and S60 FP1/FP2 devices (Voip Audio Services API) .
Fortunately we are lucky that APS on S60 MR/FP1 it's supported while on
FP2 it's deprecated but it works.

Third, if you implement it in Software (instead of using APS) you will
have to pay royalties for each piece distributed.

This guide me to say that the more convenient things to do today is to
hook APS directly inside PJMEDIA in order to use *for free
*royalty-based codec like G729 and AMR, along with Hardware Acceleration
and Battery Saving.

Fabio

Rawshan Iajdani wrote:

in

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 am a Nokia partner and I could be of some help since I am interested
on having this working as well.

Does any sponsoring on that matter help?

Mesquita

On Oct 22, 2008, at 8:24 PM, Rawshan Iajdani wrote:

Hi Rawshan,

using the APS does not require any specific kind of partnership.

You just have to use MultimediaDD capability in your DevCert retrieved
from SymbianSigned.com website.

Then, for application for signing of your application, you will have to
comply to Symbian Signed rules (UNI-01 from UNI-11) with additional
requirement for MultimediaDD usage (CAP-01 to CAP-04) .

When using  such kind of capability, while submitting the Symbian Signed
submission, you have to use "Certified Signing" instead of "Express
Signing" .

Select a Testing House (that will verify that you comply with Symbian
Signed Testing Requirements), pay some money for their testing (Sogeti
costs 560 EUR for first submission and 280EUR for second submission) and
have your application signed and ready for the market.

I know that's additional effort, but this does not mean that you have to
became in any way partner of Symbian or Nokia, you just have to develop
the application respecting the requirements dictated here by Symbian:

https://developer.symbian.com/wiki/display/pub/Symbian+Signed+Test+Criteria

Regards,
Fabio Pietrosanti

Rawshan Iajdani wrote:

Seems like I am very close to get the ITU-729 going. I will start looking
into them as soon as I finish this...

-----Original Message-----
From: pjsip-bounces@lists.pjsip.org [mailto:pjsip-bounces@lists.pjsip.org]
On Behalf Of Fabio Pietrosanti (naif)
Sent: Thursday, October 23, 2008 1:40 PM
To: pjsip list
Subject: Re: [pjsip] g729 - symbian port - FABIO

Hi Rawshan,

using the APS does not require any specific kind of partnership.

You just have to use MultimediaDD capability in your DevCert retrieved
from SymbianSigned.com website.

Then, for application for signing of your application, you will have to
comply to Symbian Signed rules (UNI-01 from UNI-11) with additional
requirement for MultimediaDD usage (CAP-01 to CAP-04) .

When using  such kind of capability, while submitting the Symbian Signed
submission, you have to use "Certified Signing" instead of "Express
Signing" .

Select a Testing House (that will verify that you comply with Symbian
Signed Testing Requirements), pay some money for their testing (Sogeti
costs 560 EUR for first submission and 280EUR for second submission) and
have your application signed and ready for the market.

I know that's additional effort, but this does not mean that you have to
became in any way partner of Symbian or Nokia, you just have to develop
the application respecting the requirements dictated here by Symbian:

https://developer.symbian.com/wiki/display/pub/Symbian+Signed+Test+Criteria

Regards,
Fabio Pietrosanti

Rawshan Iajdani wrote:

a

[mailto:pjsip-bounces@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

Still, remember that with approach:

a) you will always have to follow the rules described for "Certified
Signing" because you always use APS (but without "direct codec")
b) other than this you will also have to pay G729 royalties (not to be
paid in case of direct usage of APS codec)
c) you will have a huge performance slowdown because you will have X2
encoding/decoding operation on-device

record)  APS record from microphone, encode it in G711, PJSIP decode
G711, then PJSIP encode it G729
play)  PJSIP receive from network G729, decode it to PCM, encode it to
G711, send it to APS, APS decode G711

So you will have for recording:
2 X encode operation
1 X decode operation

So you will have for playing:
1 X encode operation
2 X decode operation

Instead hooking APS directly inside PJMEDIA you will have only 1
operation for playing and 1 operation for recording.

Fabio

Rawshan Iajdani wrote: