Passing URL to MP3Player as a variable

Asterisk Asterisk Support
1

I am using AMI to redirect a channel to a dialplan application that plays an MP3 file from a remote URL using the MP3Player app. It works fine when I have the file location hard coded but when I try to pass the location as a variable it is not picking up the value.

Here is the dialplan code that works when hard coded. I replaced the actual domain name with xxxxx.

[app-dropMessage]
exten => s,1,Answer()
exten => s,n,MP3Player(http://xxxxx.net/dss/sounds/users/29/Track2.mp3)
exten => s,n,Hangup()

Here is the dialplan code with a variable named {location}

[app-dropMessage]
exten => s,1,Answer()
exten => s,n,MP3Player(${location})
exten => s,n,Hangup()

and here is my AMI command

Action: Redirect
ActionID: DropMessage_1513176786
Channel: SIP/TRUNKP1-00001abc
Exten: s
Context: app-dropMessage
Variable: location=http://xxxxx.net/dss/sounds/users/29/Track2.mp3
Priority: 1

Is there something I am missing?

2

Just to test.

Does it work if you define the variable in your dialplan and then pass it to MP3Player?

[app-dropMessage]
exten => s,1,Answer()
 same => n,Set(Location=http://xxxxx.net/dss/sounds/users/29/Track2.mp3)
 same => n,MP3Player($Llocation})
 same => n,Hangup()

If it does then you may want to add in something like a NoOP to echo what the variable is or a Dumpchan() to show all variables and see what you are getting variable wise from AMI.

[app-dropMessage]
exten => s,1,Answer()
 same => n,Dumpchan()
 same => n,MP3Player(${location})
 same => n,Hangup()
3

Add a Noop(${location}) before MP3Player() cmd and share your cli output

4

Thanks for the reply but setting the variable in the dialplan didn’t work either. It would appear that the MP3Player application is not accepting a variable for the location.

5

I’m testing with an old version but it looked like the application accepts the variable here.

   -- Executing [9503@kiniston-intern:2] Answer("SIP/7124kiniston-00106ab1", "") in new stack
    -- Executing [9503@kiniston-intern:3] Set("SIP/7124kiniston-00106ab1", "Location=https://archive.org/download/testmp3testfile/mpthreetest.mp3") in new stack
    -- Executing [9503@Kiniston-intern:4] MP3Player("SIP/7124kiniston-00106ab1", "https://archive.org/download/testmp3testfile/mpthreetest.mp3") in new stack

[Dec 13 15:19:47] NOTICE[5794]: app_mp3.c:133 timed_read: Poll timed out/errored out with 0

I’m not sure if the the application handles https streams and I don’t have a working http stream to try, unfortunately your stream url is obfuscated so I can’t test with live data.

6

This is somewhat new to me so excuse me for asking but how can I see the cli output?

7

Here is the actual URL that I am using to test with. You are welcome to use it for testing. It is just a brief voice recording.

8

It looks like the forum software ‘Helpfully’ turned your link into a player.

Try formatting it with the preformatted-text button and pasting the url again.

9 
http://digitalspeech.net/dss/sounds/users/29/Track2.mp3

Try this one

10

Works just fine in my environment being passed as a variable.

exten => 9503,1,NoOP()
 same => n,Answer()
 same => n,Set(Location=http://digitalspeech.net/dss/sounds/users/29/Track2.mp3)
 same => n,MP3Player(${Location})
 same => n,Hangup()
11

Interesting, I will try your method again. Thanks.

12

Ok, setting the variable in the dialplan worked. Now I will see if I can pass it from the AMI command.

13

I got it to work by setting the variable in the Dial Plan but not when it is being passed by the ami command. Here is the output.

[2017-12-14 08:59:30] VERBOSE[20468][C-00000c64] pbx.c: Executing [s@app-dropMessage:1] Answer(“SIP/TRUNKP1-00001afe”, “”) in new stack
[2017-12-14 08:59:30] VERBOSE[20468][C-00000c64] pbx.c: Executing [s@app-dropMessage:2] NoOp(“SIP/TRUNKP1-00001afe”, “”) in new stack
[2017-12-14 08:59:30] VERBOSE[20468][C-00000c64] pbx.c: Executing [s@app-dropMessage:3] MP3Player(“SIP/TRUNKP1-00001afe”, “”) in new stack
[2017-12-14 08:59:30] VERBOSE[20468][C-00000c64] pbx.c: Spawn extension (app-dropMessage, s, 3) exited non-zero on ‘SIP/TRUNKP1-00001afe’

Here is the AMI command

Action: Redirect
ActionID: DropMessage_1513241973
Channel: SIP/TRUNKP1-00001afe
Exten: s
Context: app-dropMessage
Variable: Location=http://digitalspeech.net/dss/sounds/users/29/Track3.mp3
Priority: 1

Here is the Dial Plan

[app-dropMessage]
exten => s,1,Answer()
exten => s,2,NoOp(${Location})
exten => s,3,MP3Player(${Location})
exten => s,4,Hangup()

14

I got it to work by setting the variable in the Dial Plan but not when it is being passed by the ami command. I added a NoOp command to show the variable value but it is not showing anything.

Here is the AMI command

Action: Redirect
ActionID: DropMessage_1513241973
Channel: SIP/TRUNKP1-00001afe
Exten: s
Context: app-dropMessage
Variable: Location=http://digitalspeech.net/dss/sounds/users/29/Track3.mp3
Priority: 1

Here is the Dial Plan

[app-dropMessage]
exten => s,1,Answer()
exten => s,2,NoOp(${Location})
exten => s,3,MP3Player(${Location})
exten => s,4,Hangup()

Here is the output from the log

[2017-12-14 08:59:30] VERBOSE[20468][C-00000c64] pbx.c: Executing [s@app-dropMessage:1] Answer(“SIP/TRUNKP1-00001afe”, “”) in new stack
[2017-12-14 08:59:30] VERBOSE[20468][C-00000c64] pbx.c: Executing [s@app-dropMessage:2] NoOp(“SIP/TRUNKP1-00001afe”, “”) in new stack
[2017-12-14 08:59:30] VERBOSE[20468][C-00000c64] pbx.c: Executing [s@app-dropMessage:3] MP3Player(“SIP/TRUNKP1-00001afe”, “”) in new stack
[2017-12-14 08:59:30] VERBOSE[20468][C-00000c64] pbx.c: Spawn extension (app-dropMessage, s, 3) exited non-zero on ‘SIP/TRUNKP1-00001afe’

15

I’m not an AMI guy, But I don’t see that the Redirect action supports passing in a variable.

16

I think the problem is that the Redirect command does not pass variables. That’s stupid.

17

Yes, I’m sure that is the problem. Maybe I can send two AMI commands? One using SetVar to set the variable of the app and then send the redirect command.

18

Use Multiple Inheritance adding “__” (two underbar characters) in the variable name

Variable: __Location=http://digitalspeech.net/dss/sounds/users/29/Track3.mp3

19

Redirect doesn’t support variables so Inheritance won’t help.

https://wiki.asterisk.org/wiki/display/AST/Asterisk+15+ManagerAction_Redirect

20

I got confused, I didnt read you were using redirect, there is no variable parameter on the redirect action, instead you can use origiante action to a local channel with the redirect command