[asterisk-users] Retrieving/Streaming audio/video files from DBusing over AGI

[A E [Gmail]]

On Mon, May 2, 2011 at 2:30 PM, Danny Nicholas <danny at debsinc.com> wrote:

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> *From:* asterisk-users-bounces at lists.digium.com [mailto:
> asterisk-users-bounces at lists.digium.com] *On Behalf Of *A E [Gmail]
> *Sent:* Monday, May 02, 2011 1:23 PM
> *To:* Asterisk Users Mailing List - Non-Commercial Discussion
> *Subject:* Re: [asterisk-users] Retrieving/Streaming audio/video files
> from DBusing over AGI
>
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>  Just realised that this can better be described another way:
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> What we're essentially trying to do is be able to do any one of these
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> a) stream an audio/video file stored in the DB via AGI into the current
> channel so that it plays on the phone
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> OR
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> b) Do something like what Realtime Voicemail does, where it gets the file
> from the DB, saves as a temp file in the user mailbox directory and then
> plays it to the caller but this needs to happen through AGI, something along
> the lines of readsql (a la func_odbc) inside of AGI
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> OR
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> c) Anything else that's better than a) and b) above that someone can
> suggest.
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> P.S> I do know about the AGI AddOn of PUT SOUNDFILE and GET SOUNDFILE which
> seems to be the only solution we can think of right now, other than of
> course having the DB machine exporting the SAN volume as an NFS share for
> the Asterisk server to mount, but that sounds like it'll be bad for
> performance?
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> Thanks again
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> No takers? :(
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> *[Danny Nicholas] *
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> *In your original scenario you were opening yourself to probable latency
> issues – I would personally pursue something along the line of option B
> where I put the DB data into a temp file and ran a daemon to clear the temp
> files hourly or daily as needed.  If the delivery worked well across most
> LAN’s/WAN’s, some gung-ho developer would have hosed another part of
> Asterisk trying to get that “bell and whistle” into the trunk.*
>
> Thanks Danny. I'm not so sure, that latency will be that much of an issue
being on the same physical GbE switch as the DB server without any other
traffic on it but sure, I know that a long time ago when I implemented
Realtime Voicemail, it worked pretty good, so I'll be happy with b). I guess
we do need to use that AGI AddOn of PUT SOUNDFILE after all.

Would be good if more people can throw a few ideas around to see if there's
a smarter way to do it. Another idea we had was to dumb these files (since
they'll be very small in duration and thus in size) into a directory, run a
web-server and have AGI retrieve them using curl and just use "Background"
to play it. Thoughts?
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