[Asterisk-video] asterisk-video Digest, Vol 15, Issue 48

[Emmanuel BUU]

Hung Nguyen Quoc a écrit :
> Hi Emmanuel BUU,
>
>  
>
> I'm trying to integrate an implementation of the MPEG4 Part2/ H.264
> codec into Asterisk.
>
Is it an academic project ? What are the plannified usage ?
>
>  
>
> After research I've come to think that the way to do this would be to
> write a new module (based on the source code for the
>
> codec) that would communicate with Asterisk's core using the Codec
> Translator API. I don't know how to do that in detail. Pls help me.
>
>  
>
> One problem, I've encountered is that I haven't found any document
> with the Codec Translator API's specification. Could you point me to
> this specification ?.
>
>  
>
> Follow your direction, I’ve searched and took a look at
> http://sip.fontventa.com, Yes. That’is a part of my need.
>
>  
>
> Could you show me some references similarly?
>
>  
>
> Thanks so much
>
>  
>
> Hung Nguyen
>
>  
>
> ------------------------------------------------------------------------
>
> *From:* Emmanuel BUU [mailto:emmanuel.buu at ives.fr]
> *Sent:* Thursday, August 02, 2007 2:28 AM
> *To:* nguyenquochung at tma.com.vn
> *Subject:* Re: [Asterisk-video] asterisk-video Digest, Vol 15, Issue 48
>
>  
>
> Hung Nguyen Quoc wrote:
>
> Hi Emmanuel BUU,
>  
> Thanks you so much for your prompt response.
>  
> I need solution for transcoding through with MPEG4 Visual/H.264.
>   
>
> Ok, I guess that you are looking to have real time transcoding ?  Can
> you tell us a bit more about your exact needs ?
>
> If you intend to use Asterisk for this, the best starting point is to
> get the app_transcode module from Sergio and customize it to transcode
> the way you want. Sergio also has a media mixer module capable of
> doing this outside asterisk You have to know that:
>
>    1. Using and transcoding from to MPEG4 part 2 / MPEG4 part 10 is
>       submitted to licencing so if you intend to put your solution in
>       production, you have to pay the fee to the MPEG Licencing Authority
>    2. Doing such operation in real time is very costly in term of CPU.
>       Meaning that the number simultaneous of transcoding will be limited.
>
>>  
>> Could you show me what steps, solution, web link, similar project,....
>>  
>> Thanks in advance,
>>  
>> Hung Nguyen
>> ---------------------------------------------------------------
>>  
>> Message: 3
>> Date: Tue, 31 Jul 2007 16:50:04 +0200
>> From: Emmanuel BUU <emmanuel.buu at ives.fr> <mailto:emmanuel.buu at ives.fr>
>> Subject: Re: [Asterisk-video] How to integrate MPEG4Visual/H.264
>>   (MPEG4  part10/AVC) codec into Asterisk
>> To: Development discussion of video media support in Asterisk
>>   <asterisk-video at lists.digium.com> <mailto:asterisk-video at lists.digium.com>
>> Message-ID: <3a64b14b2ad8adc36f0c356f11c31faf at ives.televisite.net> <mailto:3a64b14b2ad8adc36f0c356f11c31faf at ives.televisite.net>
>> Content-Type: text/plain; charset="UTF-8"
>>  
>> Depends what is the level of support that you expect.
>>  
>> I have a simple patch to enable passthrough support of MPEG4 ES and astersik
>> 1.4.x has already H.264 support. No transcoding through.
>>  
>> On Tue, 31 Jul 2007 08:57:15 +0700, "Hung Nguyen Quoc"
>> <nguyenquochung at tma.com.vn> <mailto:nguyenquochung at tma.com.vn> wrote:
>>   
>>> Hi All,
>>>  
>>> Pls help me show the solution, source code, project, or weblink how to
>>> integrate MPEG4Visual (MPEG4 part2)/H.264 (MPEG4 part 10 /AVC) codec into
>>> Asterisk.
>>>  
>>> Many thanks
>>>  
>>> Hung Nguyen
>>>  
>>>  
>>> _______________________________________________
>>> --Bandwidth and Colocation Provided by http://www.api-digital.com--
>>>  
>>> asterisk-video mailing list
>>> To UNSUBSCRIBE or update options visit:
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>>>     
>> --
>> Emmanuel BUU
>> G?rant / General Manager
>> IV?S
>>  
>> ------------------------------
>
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Emmanuel BUU <mailto:emmanuel.buu at ives.fr> - Gérant / General Manager -
IVèS <http://www.ives.fr/>

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