VoIP Mailing List Archives

[rjcajax at gmail.com]

All,

Where streamFile allows you to seek forward and backward by samples.
Is there anyway to seek backward and play a file to a user allowing the user to pause and continue recording (I assume with recordFile) a file at an intermediate point (not insert).

Bob

[brian at freeswitch.org]

You can use the inputCallback for this.

Example values you can return during that event callback to influence
the playback:


pause
stop
speed:[-|+]1 (example speed:+2)
restart
seek:[-|+]samples (example seek:+4000)

Here is an example in lua:

function all_done(s, how)
--os.exit();
--ex();
io.write("done: " .. how .. "\n");

end

function my_cb(s, type, obj, arg)
if (arg) then
io.write("type: " .. type .. "\n" .. "arg: " .. arg .. "\n");
else
io.write("type: " .. type .. "\n");
end

if (type == "dtmf") then
io.write("digit: [" .. obj['digit'] .. "]\nduration: [" ..
obj['duration'] .. "]\n");

if (obj['digit'] == "1") then
return "pause";
end

if (obj['digit'] == "2") then
return "seek:+3000";
end

if (obj['digit'] == "3") then
return "seek:-3000";
end

if (obj['digit'] == "4") then
return "seek:+3000";
end

if (obj['digit'] == "5") then
return "speed:+1";
end
if (obj['digit'] == "6") then
return "speed:0";
end
if (obj['digit'] == "7") then
return "speed:-1";
end

if (obj['digit'] == "8") then
return "stop";
end

if (obj['digit'] == "9") then
return "break";
end
else
io.write(obj:serialize("xml"));

end
end


blah = "args";
session:setHangupHook("all_done");
session:setInputCallback("my_cb", "blah");
session:streamFile("/tmp/swimp.raw");



If you wish to stop playback or a recording and move on you just
return "break" in the inputcallback.

/b




On Sep 10, 2008, at 8:40 AM, Robert Clayton wrote: