[asterisk-bugs] [Asterisk 0017078]: [patch] MixMonitor records shorter files than the call duration.

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=17078 
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Reported By:                geoff2010
Assigned To:                dhubbard
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Project:                    Asterisk
Issue ID:                   17078
Category:                   Applications/app_mixmonitor
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     assigned
Asterisk Version:           1.4.30 
JIRA:                       SWP-1133 
Regression:                 No 
Reviewboard Link:           https://reviewboard.asterisk.org/r/611/ 
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
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Date Submitted:             2010-03-23 00:38 CDT
Last Modified:              2010-04-07 17:10 CDT
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Summary:                    [patch] MixMonitor records shorter files than the
call duration.
Description: 
Hello,
I am having an 100% reproducible issue with MixMonitor.  My recording
files are being truncated by a few seconds.  

I am a 100% SIP deployment.  No dahdi channels or anything.

I have narrowed it down to a particular scenario which causes the problem.
 It appears the issue is related to delaying the Answer() in the dial plan.
 Basically, i have a dialplan which does this:

[start]
exten => _NXXNXXXXXX,1,Ringing()
exten => _NXXNXXXXXX,n,AGI(agi://localhost/dosomething.agi)
exten => _NXXNXXXXXX,n,Hangup()


[conference]
exten => _NXXNXXXXXX,1,MixMonitor(/home/recordings/blah.WAV,a)
exten => _NXXNXXXXXX,n,Conference(1234)
exten => _NXXNXXXXXX,n,Hangup()


In that scenario, the FastAGI script would do a lookup.  Depending on the
results of the lookup, it will do an Answer() and then a redirect to the
[conference] context where the MixMonitor would be attached.  We are
basically looking for a condition, so sometimes the FastAGI could wait up
to 20 or 30 seconds before returning an Answer().

If I modify the flow and return Answer() immediately, the recording file
will be perfect.  The way I have it flowed out above - I lose 3-7 seconds
of audio at the end of the file.  

If there is anything else I can provide, i would be happy to.  

Thanks.
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---------------------------------------------------------------------- 
 (0120199) dhubbard (manager) - 2010-04-07 17:10
 https://issues.asterisk.org/view.php?id=17078#c120199 
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Uploaded changes to 1.4.30 (dw-M17078.patch) 

Issue History 
Date Modified    Username       Field                    Change               
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2010-04-07 17:10 dhubbard       Note Added: 0120199                          
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