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<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt'>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 :)<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt'>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.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt'>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.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt'>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.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt'>I guess I could
wait 50ms before sending the new playback message, but I can really never be
sure that it was handled properly.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt'>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.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt'>These are the
messages I’m sending;<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt'>SendMsg
<uuid><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt'>call-command:
execute<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt'>execute-app-name:
playback<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt'>execute-app-arg:
tone_stream://%(1500, 3500, 440.0, 0.0);loops=100<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt'>When I don’t
want this to play anymore I send a break;<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt'>SendMsg
<uuid><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt'>call-command:
execute<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt'>execute-app-name:
break<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt'>And immediately
after this I want to play another file;<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt'>SendMsg
<uuid><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt'>call-command:
execute<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt'>execute-app-name:
playback<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt'>execute-app-arg:
file/to/play.wav<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt'>Regards,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt'>Peter Olsson<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt'><o:p> </o:p></span></p>
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