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Looping an MP3

by BeyondtheTech · in iTorque 2D · 05/22/2009 (8:14 am) · 6 replies

I've read the other threads where it's easy as two lines when wanting to play an MP3 file in the background.

$musicStreamFile = "~/data/audio/slowtempo.mp3";
$musicStreamHandle = startiPhoneAudioStream($musicStreamFile,500);

However, I wanted to loop the MP3 continuously until I decide to change up the music.

// background music
new AudioDescription(BGM)
{
   volume   = 1.0;
   isLooping = true;
   is3D     = false;
   type     = $GuiAudioType;
};

...

function getAudio(%name, %type)
{
   if (isObject(%name))
      return;
   
   new AudioProfile(%name)
   {
      filename = "~/data/audio/" @ %name @ ".mp3";
      description = %type;
      preload = false;
   };
}

...

function playBGM(%sound, %volume)
{
   // get profile for background music and set default volume
   getAudio(%sound, "BGM"); 
   alxSetChannelVolume($GuiAudioType, %volume);  

   // if another bgm is playin, turn it off
   if ($bgm)
      $bgm = alxStopAll(); 
         
   // play bgm
   $bgm = alxPlay(%sound);
}

...

playBGM("fasttempo", 1.0);

I tried going back to this code, but I'm not getting any music... am I missing something? Is there a simple one-liner like the top version, or additional parameter needed that will loop the MP3?
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Torque 3D Owner Mat Valadez
Default Studio Name
#1
05/22/2009 (10:28 am)
This:
startiPhoneAudioStream($musicStreamFile,500);
Should be this:
%loop = true;
startiPhoneAudioStream($musicStreamFile,%loop);

Streaming mp3 is specific to the iPhone and doesn't go through iTGB normal audio profile stuff, alxPlay, alxStop, etc. won't do anything.

Torque Owner BeyondtheTech
#2
05/22/2009 (11:15 am)
Well, that was simple enough. Thanks!

Torque Owner Mike Moore
#3
07/09/2009 (3:04 pm)
and how to stop a music file???

I´ve tried:

stopiPhoneAudioStream($musicStreamFile);

but doesn´t works... is there such method???

Thanks

Mike

Torque Owner Mike Moore
#4
07/09/2009 (3:08 pm)
It seems I´ve made a wrong calling, I should use:

stopiPhoneAudioStream($musicStreamHandle);

Torque Owner Matthew Klundt
#5
07/25/2009 (1:04 pm)
This works great, but does anyone know how to put a fade on the iPhoneAudioStream? Or to point me to where this would be in the documentation?

Thanks

Torque 3D Owner Marc 'Dreamora' Schaerer
Gayasoft
#6
07/25/2009 (1:40 pm)
I fear you can't unless you don't care about performance and move the mp3 to software decoding.