[Freeswitch-dev] Newbie Q

[P. Broennimann]

Thx Eliot 4 ur answer

Unfortunately post-processing in not an option -> This needs to happen
on-the-fly.

I am not scared of work and I have time so I will dig deep
and try to figure out how to write/modify FreeSwitch C modules...

Thanks & cheers,
P.




2011/11/2 Eliot Gable <egable+freeswitch at gmail.com>

> Maybe just record the entire call and then split it up afterwards using a
> wav-file post-processing program. Maybe sox or ffmpeg or something similar
> might work? Alternatively, you could use the API in FreeSWITCH to start and
> stop and start and stop the recording every 30 seconds, but that seems like
> overkill and lots of extra work compared to just using post-processing
> software. Plus, you'll miss bits of the recording between when you stop one
> segment and start the next. Is there some reason you need to be doing this
> on the fly versus post-processing? Alternatively, you could write a module
> in C for FreeSWITCH which taps the audio and you could buffer it internally
> in your module and then save out 30-second segments. This would let you get
> all of the audio with micro-second precision splits so you wouldn't loose
> any audio between segments, but it's an awful lot of work to go through
> compared to post-processing.
>
>
> On Tue, Nov 1, 2011 at 6:50 PM, P. Broennimann <peter at enovatiq.com> wrote:
>
>> Hi Michael
>>
>> Thx for answering. Sorry next time I'll post on the other list...
>>
>> Basically I am looking for a solution to split "on-the-fly" recordings on
>> answer. The result for each call should be a consecutive/sequential set of
>> wav files of each X seconds (saved on-the-fly in a specific directory and
>> using a specific filename stucture)...
>>
>> I don't want to reinvent the wheel so that's why I asked if something
>> similar already exists. Performance is quiet important here (small latency).
>>
>> P.S: I bought the FreeSwitch book and I am making progress learning :)
>>
>> Thx & cheers,
>> P.
>>
>>
>> 2011/11/1 Michael Collins <msc at freeswitch.org>
>>
>>> Welcome to FreeSWITCH!
>>>
>>> First off, let me just mention that this question is probably better
>>> suited to our -users list. (This is the -dev list which has a smaller
>>> audience and is reserved for more intense discussions.) If you don't get a
>>> satisfactory answer here then re-post on freeswitch-users list.
>>>
>>> Now, as far as your question goes... you have different options
>>> available to you but it really depends on how you are generating your
>>> calls. Also, do you want the call to last more than 30 seconds and have
>>> only the recording be 30 seconds? Do you want recording to start on early
>>> media or on answer?
>>>
>>> As an example of how to do a simple 30-second recording here's one that
>>> when you call it, it will start recording, play music for 30 sec, then end
>>> the recording and disconnect:
>>>
>>> <extension name="record 30 sec of MOH">
>>>   <condition field="destination_number" expression="^732664$">
>>>     <action application="answer"/>
>>>     <action application="record_session"
>>> data="$${recordings_dir}/${uuid}.wav"/>
>>>     <action application="sched_hangup" data="+30"/>
>>>     <action application="playback" data="${hold_music}"/>
>>>   </condition>
>>> </extension>
>>>
>>> Dial 732664 (i.e. "REC MOH" :) and just wait. You'll hear music and then
>>> at 30 seconds it will stop recording.
>>>
>>> Happy FreeSWITCHing!
>>>
>>> -MC
>>>
>>> On Tue, Nov 1, 2011 at 1:27 PM, P. Broennimann <peter at enovatiq.com>wrote:
>>>
>>>> Hi there
>>>>
>>>> I am new to FreeSwitch and I have a question...
>>>>
>>>> I'd like to record a call/session outputing same length .wav files (all
>>>> .wav files to be exactly 30 seconds long).
>>>>
>>>> I browsed through the FreeSwitch sources from GIT and I found the
>>>> module 'mod_snapshot'. Would this module be the best start/base for the
>>>> functionality I am looking for resp. are there other modules/scripts that I
>>>> should better check first?
>>>>
>>>> -> I tried to build the module in MSVC Express 2010 but I get errors ->
>>>> Anyone was recently successful building it?
>>>>
>>>> Thx in advance,
>>>> P.
>>>>
>>>>
>>>> _______________________________________________
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>>>
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>>
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>
>
> --
> Eliot Gable
>
> "We do not inherit the Earth from our ancestors: we borrow it from our
> children." ~David Brower
>
> "I decided the words were too conservative for me. We're not borrowing
> from our children, we're stealing from them--and it's not even considered
> to be a crime." ~David Brower
>
> "Esse oportet ut vivas, non vivere ut edas." (Thou shouldst eat to live;
> not live to eat.) ~Marcus Tullius Cicero
>
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