Playing a WAV file is easier as it may look at first sight since the OS does most of the work. In this project the class CSoundPlayer implements all the necessary stuff to do this:

The key classes are :
  CMdaAudioPlayerUtility which implements the decoder. The class CSoundPlayer has a private member of this class called iMdaPlayer.
  MMdaAudioPlayerCallback which is a kind of observer on iMdaPlayer. Basically this mixin class requires the implementation of the MapcInitComplete() and MapcPlayComplete() which will be described below.

Initialisation of the player

The player is initialised by calling CSoundPlayer::NewL(<filename>) or CSoundPlayer::NewLC(<filename>). The second-phase constructor of the CSoundPlayer object will initialise the iMdaPlayer object using CMdaAudioPlayerUtility::NewFilePlayerL():

A second type of constructor, CMdaAudioPlayerUtility::NewDesPlayerL() is available if your WAV sample is already in RAM memory.

The player is not ready to play yet. Actually, if you try to call iMdaPlayer->PlayL() right after the NewFilePlayerL() call, you will probably hear nothing: you have to wait the player instance constuction to be ready to play. It will be signalled to you when the callback method MapcInitComplete() is called by the framework. Two typical implementation of this function are shown below:

Playing the file

Once the initialisation is complete, and as shown is the code above, the playback of the file is asked by a call to CMdaAudioPlayerUtility::PlayL(). In the Sound1 project, this is done by calling CSoundPlayer::PlayL():

The framework will notify you the end of the playback by a call to MapcPlayComplete(). Here is the implementation for Sound1: