[Freeswitch-users] Record and live stream WAV to HTTP server

[Vincent Gire]

Hello Sergey,

Thank you for your answer.
I've looked into webdav mounted filesystem.

Unfortunately, most WebDav clients (especially davfs2 on debian) do a lot
of buffering, caching and even lock-null requests (lock a non existent
resource before writing to it). I also suspect that they wait for the end
of the write operation.
The result is a latency of a few seconds witch is not much better than what
I achieve with mod_shout if I transcode the MP3.

Any other idea ?

Thank you !

Best regards

Vincent

On Sun, Apr 3, 2016 at 7:30 PM, Sergey Safarov <s.safarov at gmail.com> wrote:

> Please look at webdav mounted filesystem.
>
> On Sun, Apr 3, 2016, 19:17 Vincent Gire <vincent.gire at gmail.com> wrote:
>
>> Hi all,
>>
>> Thank you to all contributing to FreeSWITCH !
>>
>> I'm working on a IVR project where logic is implemented on a HTTP server.
>> We are leaving Twilio because we now need to record and live stream the
>> session to the HTTP server in WAV format (chunked transfer encoding).
>>
>> *mod_httapi* looks great (HT TAPI very similar to Twilio's) but it seems
>> that the records are first saved to disk before there are sent to the
>> server as chunked data.
>> We need the transfer to start as soon as the recording starts.
>>
>> *mod_shout* does start the request almost as the records starts but it
>> does not support WAV file and shout:// is not exactly a HTTP request
>> (SOURCE method instead of PUT).
>>
>> Is there a way to use these modules to achieve our goal ?
>>
>> If not, we are willing to author a specific module or rather contribute
>> to the existing ones.
>>
>> We've identified two approaches:
>>
>>    1. From *mod_httapi* Modify mod_httapi to directly stream the record
>>    instead of completely saving it to disk before the HTTP chunked transfer
>>    starts.
>>    This seems the most logical but with more than 3000 lines, mod_httapi
>>    does not seem to be the easiest module to build upon for newcomers!
>>
>>    2. From *mod_shout*
>>       1. Modify libshoot to replace the custom SOURCE method with
>>       standard HTTP PUT method
>>       2. Modify mod_shout to support wav files
>>       3. Implement our IVR in script (javascript/lua)
>>
>> What do you think ?
>>
>> Thank you for your help.
>>
>> Cheers,
>> Vincent
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>
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>
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>
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-- 
Vincent Gire
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