[Freeswitch-users] FreeSWITCH call recording missing header information

[Seven Du]

maybe listen to the RECORD_STOP event instead of the hangup hook? also
inotify on OS worked for me well.


On Mon, Dec 14, 2020 at 8:14 AM Chad Phillips <chad at apartmentlines.com>
wrote:

> I have a dialplan setup that records a bridged call in FreeSWITCH,
> which sets the 'api_hangup_hook' variable to call a lua script when the
> call hangs up, and the called lua script moves the recorded .wav file from
> it's temporary location to a final destination.
>
> This works, but recently I noticed that some of my .wav recordings have no
> header information, which results in many players choking when trying to
> play it.
>
> I eventually figured out that the header information for the .wav file
> appears to be written *after* the call is hung up, and file move operation
> in the api_hangup_hook moves the file before the header information has
> been written. This occurs sporadically.
>
> I've found that introducing a 1 second sleep in my lua script fixes this
> race condition, but that seems a bit of an ugly hack.
>
> Curious if anybody else has run into this, and/or can offer me a cleaner
> solution than my sleep hack.
>
> I'm attaching a brief summary of the dialplan and lua script for anyone
> that wants to see the code.
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