Audio files not Playing in Blackberry

Question

Hi,

Im trying to play recorded wave file.While playing,exception is thrown at foll. stmt.:

Player player = Manager.createPlayer(is, "audio/mpeg");

My entire code for playing wave file is as follows:

if (types[cnt].equals("audio/x-wav")) {
    Class clazz = Class.forName("RecordAudio");
    InputStream is = clazz.getResourceAsStream("file:///SDCard/BlackBerry/original.wav");
    //create an instance of the player from the InputStream
    Player player = Manager.createPlayer(is, "audio/mpeg");
    player.realize();
    player.prefetch();
    //start the player
    player.start();
}

Please help me out. Thanks in advance.

Answer 1

Hi!

I believe it is because of wrong MIME type. Try this:

String fileName = "file:///SDCard/BlackBerry/original.wav";
String mimeType = "audio/x-wav";
String types[] = javax.microedition.media.Manager
     .getSupportedContentTypes(null);
for (int cnt = types.length - 1; cnt >= 0; --cnt) {
    if (types[cnt].equals(mimeType)) {
     InputStream is = null;
     FileConnection fconn = null;
     try {
      fconn = (FileConnection) Connector.open(
      fileName, Connector.READ);
     } catch (IOException e) {
      System.out.println("Error reading file");
     }
     try {
      is = fconn.openInputStream();
     } catch (IOException e) {
      System.out.println("Error opening stream");
     }
     Player player = null;
     try {
      player =      
      javax.microedition.media.Manager.createPlayer(
      is, mimeType);
     } catch (IOException e) {
      System.out.println("Error creating player");
     } catch (MediaException e) {
      System.out.println("Error media type");
     }
     try {
      player.realize();
     } catch (MediaException e) {
      System.out.println("Player cannot be released");
     }
     try {
      player.prefetch();
     } catch (MediaException e) {
      System.out.println("Player cannot be prefetched");
     }
     // start the player
     try {
      player.start();
     } catch (MediaException e) {
      System.out.println("Player cannot be started");
     }
    }
}

Also see in console what kind of exception was thrown.

Answer 2

The function getResourceAsStream is for pulling resources from a JAR/COD file, not from the filesystem. Plus, this is simpler than you are making it. Just pass the file name and path to createPlayer, like so:

try {
    String filename = "file:///SDCard/BlackBerry/original.wav";
    Player player = javax.microedition.media.Manager.Manager.createPlayer( filename );
} catch (IOException e) {
    System.out.println("Error creating player");
} catch (MediaException e) {
    System.out.println("Error media type");
}