Re: [Linphone-developers] Linphone and G.722 Wideband codec

[menno]

Hello Everyone,

I can't compile it succesfully. I add the c files to the
mediastreamer2/src/Makefile.am , but after configure he don't compile the
all the g722 C files (dont transform them to "lo" & "o" files.

Is there anybody who can exactly describe the steps what i should doing to
add this codec to linphone? The steps of mine didn't work yet succesfully
:(.

> I'm attaching my version of mediastreamer2/plugins/msg722.c
>
> There is two IMPORTANT things to remmeber about g722
>
> 1) when building ding SDP the fmt should be G722/8000
>
> 2) The actual sampling rate should be 16000HZ  but the RTP timestamp
should be based 8000HZ
>
> Thanks
> Vadim
>
>
>
> On 06/29/2010 01:24 PM, Simon Brenner wrote:
>>> The files from the code from the internet are not directly very
useful, because you should make some config&make files.
>>>
>> Yeah, that's right!
>>
>>
>>> Is there anybody who has allready made a G722 plugin (the sama as msilbc
>>> plugin) for Linphone (so that i can compile that first and give some
parameters to the linphone configuration to use them)?
>>>
>> I'm actually in the middle of writing a Linphone plugin, but this is
for other reasons. For a start,
>> I took the msx264 plugin code and replaced it by my own code preserving
the needed structure. But I
>> better had had a kind of template or decent guide to do that.
>>
>> Perhaps we can ask Simon Morlat how his approach to writing a plugin
is?? Simon, do you have some
>> kind of plugin template?
>>
>>
>> -Simon.
>>
>>
>>
>>
>>
>>
>>
>>>> Well, as I said, I never got the codec actually running.
>>>> You seem to have done the same steps as I did in order to integrate that
>>>> particular piece of code
>>>> from the internet. So I'm not further than you.
>>>>
>>>> But the thing with doing it as a plugin seems very clever to me! I like
>>>> the idea of a plugin being
>>>> generally independent from the main program.
>>>> Before saying any more I'll also have to have a look at some already
existent plugins in order to
>>>> understand how they work.
>>>>
>>>> -Simon.
>>>>
>>>>
>>>>
>>>> menno wrote:
>>>>
>>>>> Hi!
>>>>>
>>>>> Nice to hear!
>>>>>
>>>>> Can you explain the steps that you do to get this G722 working (to get
>>>>> this in the codec section)? I'll try that first on a normal
i386/i686 PC
>>>>> and after that i will try to recompile it to an ARM device.
>>>>>
>>>>>
>>>>>
>>>>>> Hi!
>>>>>>
>>>>>> Yeah, that was exactly was I was trying to do 2 months ago
>>>>>> (coincidentally
>>>>>> also on an ARM device). I
>>>>>> also got everything to compile and if I remember it correctly I
even got
>>>>>> G.722 to be standing in the
>>>>>> audio codec list.
>>>>>> But I unfortunately never got the codec really running which I
don't understand...
>>>>>>
>>>>>> I would also definitely be interested in having G.722 integrated in
Linphone - even if it would be
>>>>>> with the help of a preprocessor switch or something. (Like
>>>>>> USE_G722_CODEC)
>>>>>>
>>>>>> -Simon.
>>>>>>
>>>>>>
>>>>>> menno wrote:
>>>>>>
>>>>>>> Hello,
>>>>>>>
>>>>>>> I want to use the G.722 codec on a 1.2Ghz ARM Device in the
future. For
>>>>>>> now i want to use linphone incombination with the Wideband G.722
codec.
>>>>>>>
>>>>>>> I follow the following steps:
>>>>>>> 1. I download all the G722 files @
>>>>>>> http://lists.gnu.org/archive/html/linphone-developers/2009-09/msg00034.html
2. I unpack the files and put msg722.c, g722_encode.c and
>>>>>>> g722_decode.c
>>>>>>> into mediastreamer2/src
>>>>>>> 3. I put the g722.h file into the
>>>>>>> mediastreamer2/include/mediastreamer2
>>>>>>> directory
>>>>>>> 4. I added two new filter id's to allfilters.h
>>>>>>> 5. I add all the C-files to the mediastreamer2/src/Makefile.am 6.
I add
>>>>>>> "linphone_core_assign_payload_type(&payload_type_g7221,9,NULL);"
>>>>>>>
>>>>>>> Compiling works ok with the current version linphone-3.3.1.tar.gz.
But
>>>>>>> after compiling , and starting program i get no other codecs than the
>>>>>>> g711A/U,GSM and not the G722 one.
>>>>>>>
>>>>>>> Can anybody help me to get this G722 wideband codec working (or
add this
>>>>>>> to the current linphone)?
>>>>>>>
>>
>>
>>
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