[Asterisk-video] video spy

[Emmanuel BUU]

Klaus Darilion a écrit :
> Emmanuel BUU schrieb:
>   
>> aster vdo a écrit :
>>     
>>>           This solution perfcectly works on SIP channels but on real
>>> time that is with the h324m and Zap channels there is no audio of
>>> caller or the callee passed to the Spy channel, video works fine.I
>>> dont see asterisk generating any error but the audo is still missing.
>>>   
>>>       
>> Ok, I know why this is not working. Zap / h324m are using amr codec for 
>> audio and app_conference does not support this.
>> A minor modification to app_conference source is required to support amr 
>> (hint: add a transcoder).
>>     
>
> Is it really necessary to extend app_conference? When the AMR codec is 
> installed to asterisk, asterisk should do the transcoding itself.
>   
Well, as far as I understand app_conference, the app request transcoding 
explicitly to SLINEAR using asterisk audio transcoding mechanism of course.
Mihai would explain it more clearly and also the reasons why AMR is not 
supported (licencing issues, non standard AST_FORMAT_AMR definitions ...)
> regards
> klaus
>
>   
>>
>>
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>
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