[SOLVED] How to stop 'aplay' from playing a song?

[Argolance]

Hello,
All is in the tittle...
Thank you!

Best regards!

[don570]

Does "killall aplay" work in terminal?

I personally use my task manager to stop unwanted music.

[Argolance]

Hello,
Thank you for answering.
I need, inside a script, user to test sound files: start and eventually stop playing them before they end. If I kill aplay I kill other playing processes too. It is not what I want.
Strange that this very basic command doesn't exist!

[don570]

I noticed that it is possible to kill a gtkdialog process by
its name. I believe I used that in a script I recently wrote
(probably quick_launch)

I grepped for the gtkdialog name to get the process number.
and then killed the process number.

So I wonder if you could arrange each song
to have a separate gtkdialog name??

or somehow open the song with another application so
that the song showed up on the list of processes.

For instance I discovered that if I had my text editor
open to edit a script and then did 'ps' in terminal
that the name of the script would appear in the output
which was undesirable for me, but maybe you could
use that to help you spot the song and kill it.

_______________________________________

[Argolance]

Hello,
=> Found this!
... Will try tomorow!!!

Good night.

[seaside]

Argolance,

Either -

aplay <somefilename> &
PID=$!
kill $PID

-or-

aplay -s <somefilename> (already running)

EDIT: I tried both of these and this works-

Code: Select all

 
exec aplay <somefilename> &
PID=$!
sleep 2
kill $PID

Apparently the pup aplay doesn't have an -s option.


Not sure which is better,

Cheers,
s

[Argolance]

Hello,
Thank you.
I have got to buttons, one to start (<action>aplay \$MYSOUNDFILE &</action>, one to stop playing (<action>???????</action>: Sorry but I don't see how to transpose your code lines:

Code: Select all

PID=$!

Code: Select all

kill $PID

... inside my script.

Regards!

[seaside]

Hello,
Thank you.
I have got to buttons, one to start (<action>aplay \$MYSOUNDFILE &</action>, one to stop playing (<action>???????</action>: Sorry but I don't see how to transpose your code lines:

Code: Select all

PID=$!

Code: Select all

kill $PID

... inside my script.

Regards!

Argolance,

Perhaps this -

Code: Select all

play() {
aplay <soundfile> & 
PID=$! # can't see var PID, so needs -
echo $PID >/tmp/playtmp
}
export -f play

export MAIN_DIALOG='
<hbox>
    <button>
    <label>Play</label>
            <action>play</action>
    </button>
    <button>
    <label>Stop</label>
            <action>kill `cat /tmp/playtmp`</action>
     </button>
 </hbox>'
 gtkdialog3 --program=MAIN_DIALOG   

Regards,
s

[Argolance]

Hello seaside,
I adapted and tried code lines above! Something very strange happens: when I run my script in console, the displayed process number is different from the one that is saved in the file /tmp/playtmp (23642)...

Playing WAVE '/usr/share/audio/login/00_current' : Signed 16 bit Little Endian, Rate 22050 Hz, Stereo #Play button
sh: line 0: kill: (28245) - Aucun processus de ce type (no process of this type) #Stop button!
Playing WAVE '/usr/share/audio/login/00_current' : Signed 16 bit Little Endian, Rate 22050 Hz, Stereo #Play button... again
sh: line 0: kill: (28245) - Aucun processus de ce type #Stop button... again
Script completed hit RETURN to close window.

What's wrong?
Thanks!

Cordialement.

[vovchik]

Dear puppians,

This works as a toggle, and you can link it to rox (customize menu), so that when you click on a sound file, it will play or, by clicking on the same or another sound file of the same type, it will kill aplay:

Code: Select all

#!/bin/sh

mybin="aplay"
myfile="$@"

if [ "$(pidof $mybin)" ]; then
	killall -KILL aplay
else
	$mybin "$myfile" > /dev/null 2>&1&
fi
exit 0

With kind regards,
vovchik

[Argolance]

Hello,
Thank you to all!
@vovchik,
Your proposition is right! Perhaps, some explanations should be welcome, please... (<pidof>? </dev/null 2>&1&>?

@seaside
I used your function to make it run inside my script and this is quite perfect:

Code: Select all

play() {
mybin="aplay"
myfile="$@"

if [ "$(pidof $mybin)" ]; then
   killall -KILL aplay
else
   $mybin "$myfile" > /dev/null 2>&1&
fi
}
export -f play
 
export MAIN_DIALOG="
<hbox>
    <button> <input file stock=\"gtk-media-play\"></input>
    <label>Start playing</label>
            <action>play</action>
    </button>
    <button> <input file stock=\"gtk-media-stop\"></input>
    <label>Stop playing</label>
            <action>play</action>
     </button>
 </hbox>"
 gtkdialog3 --program=MAIN_DIALOG

Best regards

[vovchik]

Dear Argolance,

I am glad you got it working. I see one little infelicity in my own code:

The bit:

Code: Select all

if [ "$(pidof $mybin)" ]; then
   killall -KILL aplay

should actually read:

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if [ "$(pidof $mybin)" ]; then
   killall -KILL $mybin

just so you can use this code for various on/off things and just change the contents of the variable $mybin.

Explanations: "pidof" is a unix command that returns the PID of an executable that is in memory, making it easy to find and kill processes. If a process is found (e.g. "aplay"), the condition is true and the "killall" routine is called. Otherwise it is not.

The bit:

Code: Select all

/dev/null 2>&1& 

simply redirects all stdout and stdin to the "bitbucket" so as not to show garbage in the terminal. The last "&" means execute a command as a separate process.

With kind regards,
vovchik

[seaside]

Argolance,

I tried the code in a console and it worked, so I'm not sure what's happening.

Since Vovchik has very kindly provided another solution using a toggle, you could even eliminate one of the buttons.

Code: Select all

<button image-position=\"top\" relief=\"2\" tooltip-text=\"Toggle to start or stop sound \">
    <input file>/mnt/sdb6/start_stop_button2.png</input>
    <label>Start or stop playing</label>
            <action>play</action>
    </button>

You may have to buy a BMW car to match the button

Regards,
s

[vovchik]

Dear seaside,

Thanks for posting that image. I made a reasonably nice button icon out of it, and I think it might be useful for this and other little apps.

With kind regards,
vovchik

[seaside]

Dear seaside,

Thanks for posting that image. I made a reasonably nice button icon out of it, and I think it might be useful for this and other little apps.

With kind regards,
vovchik

Vovchik,

Nice looking and handy button.

Not a single bit of infelicity there

Regards,
s

[Argolance]

Hello,
@vovchik
Thank you a lot for explanations: rather rod for fishing than fish to eat!
@seaside

Since Vovchik has very kindly provided another solution using a toggle, you could even eliminate one of the buttons.

Yes I did but as I have got other gtk stock buttons inside my script, this beautiful fat one is not appropriate...
So, I made a 'gtk stock like' button, for those who are interested in!

Regards.