[Freeswitch-users] ESL and application "break" (to stop file playback) - timing issues.

[Anthony Minessale]

you could also wait for the execute_complete of the file you were playing

On Mon, Mar 15, 2010 at 9:40 AM, Peter Olsson <
peter.olsson at visionutveckling.se> wrote:

>  Thanks for the reply.
>
>
>
> Yes, I thought of this.
>
>
>
> But that still shouldn’t solve the issue? It will only tell that the
> CF_BREAK flag was set on the channel, not that the current playback detected
> the flag in the loop (which I guess is done in a different thread), or is
> this event sent once the playback really did stop?
>
>
>
> /Peter
>
>
>
> *Från:* freeswitch-users-bounces at lists.freeswitch.org [mailto:
> freeswitch-users-bounces at lists.freeswitch.org] *För *Anthony Minessale
> *Skickat:* den 15 mars 2010 16:31
> *Till:* freeswitch-users at lists.freeswitch.org
> *Ämne:* Re: [Freeswitch-users] ESL and application "break" (to stop file
> playback) - timing issues.
>
>
>
> you could wait for the execute_complete event for your break command.
>
>  On Mon, Mar 15, 2010 at 3:20 AM, Peter Olsson <
> peter.olsson at visionutveckling.se> wrote:
>
> I’m not sure if this belongs in Jira, or if it’s possible to do it another
> way – so I try the list first :)
>
>
>
> I’m using ESL to do some IVR functions. Basically I play some sound files,
> wait for DTMF, and then do something, like record a message, transfer the
> call to a mobile phone etc. Quite basic and simple.
>
>
>
> I’ve noticed one problem with this, and it’s when I want to stop playback
> using command “break”. In 99% of the time everything works as expected, but
> sometimes I get this problem – and the problem is that the current file
> doesn’t stop playing. And I think I know why this is happening.
>
>
>
> Lets say I first send playback(tone_stream://%(1500, 3500, 440.0,
> 0.0);loops=100) to the channel. This will play a ring-tone (swedish) and
> loop through it 100 times.. When I want to stop this tone I send the break
> command, and directly after this a new playback command. Maybe 1 time in 100
> tries the tone_stream doesn’t stop playing. I think this is becuase how
> break works. From what I understand from the source it just sets the
> CF_BREAK flag on the channel, and then the playback application will detect
> this and stop the playback. However, when I send a new playback command
> immediately after break it will reset the CF_BREAK-flag again, to make sure
> it won’t cause any problems for the new playback. So if the original
> playback (tone_stream) didn’t check the flag before it was reset, it won’t
> known that it was supposed to stop playing.
>
>
>
> I guess I could wait 50ms before sending the new playback message, but I
> can really never be sure that it was handled properly.
>
>
>
> Is there any other way around this? How about “break <uuid> all”, will it
> make any difference in this case? Or should this just be treated as a timing
> bug, and filed to Jira? Any help on this would be greatly appreciated.
>
>
>
> These are the messages I’m sending;
>
>
>
> SendMsg <uuid>
>
> call-command: execute
>
> execute-app-name: playback
>
> execute-app-arg: tone_stream://%(1500, 3500, 440.0, 0.0);loops=100
>
>
>
> When I don’t want this to play anymore I send a break;
>
>
>
> SendMsg <uuid>
>
> call-command: execute
>
> execute-app-name: break
>
>
>
> And immediately after this I want to play another file;
>
>
>
> SendMsg <uuid>
>
> call-command: execute
>
> execute-app-name: playback
>
> execute-app-arg: file/to/play.wav
>
>
>
>
>
> Regards,
>
>
>
> Peter Olsson
>
>
>
>
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>
> --
> Anthony Minessale II
>
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-- 
Anthony Minessale II

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