[asterisk-bugs] [JIRA] (ASTERISK-21799) Dropouts/distortion in MixMonitor recording when recording RTP with ptime of 60ms

[Michael Walton (JIRA)]

     [ https://issues.asterisk.org/jira/browse/ASTERISK-21799?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Michael Walton updated ASTERISK-21799:
--------------------------------------

    Attachment: slinfactory.c.ASTERISK-21799.patch

Patch for Asterisk 11 main/slinfactory.c
                
> Dropouts/distortion in MixMonitor recording when recording RTP with ptime of 60ms
> ---------------------------------------------------------------------------------
>
>                 Key: ASTERISK-21799
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-21799
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Applications/app_mixmonitor
>    Affects Versions: 11.4.0
>         Environment: Ubuntu 10.04.4 LTS
>            Reporter: Michael Walton
>            Severity: Minor
>         Attachments: slinfactory.c.ASTERISK-21799.patch
>
>
> When using MixMonitor to record a SIP call with ptime 60ms (possibly others also), the recording of one of the directions is heavily distorted due to repeated discontinuities in the recorded stream. Rate of dropout is 10-20 times per second. 
> The bug has been found in main/slinfactory.c and exists in at least 1.8 and 11 SVN revisions. The problem is a clear bug in the hold buffer logic in ast_slinfactory_read(). A patch will be attached with a tested solution.

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