Audio files not Playing in Blackberry

Question

I'm trying to play a recorded wave file. While playing, an exception is thrown at the following statement:

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

My entire code for playing the 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();
}

What could be the problem?

itsteju, it would be helpful if you would give more info in questions (rim os version, bb model) and if you would format your code. thanks! — Maksym Gontar, Sep 02 '09 at 07:21
Hello Coldice, sorry for bad formatting of code. Im using BB Pearl 8100 device with o.s.version 4.5.0.81 — iOSDev, Sep 02 '09 at 08:49

score 7 · Answer 1 · answered Sep 02 '09 at 12:11

7

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");
}

answered Sep 02 '09 at 12:11

Fostah

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Hi,I tried with above code, No exception is thrown...but media player is not activated.Debugger console prints something as: MN: getPlayableStreams0(0)=1 MN: getLength0(0)=0 MN: getPlayableStreams0(0)=1 MN: isSeekable0(0)=1 AR: add source 10 AR: setAudioMode 32 MN: play0(0) is audio, NO check for active pause MN: play0(0)=0 MN: MEDIA_STOPPED received MN: handle=0 staticsHandle=7fffffff AUDIOMANAGER: IOException MN: unload0(0)=2 pauseHandle=7fffffff AR: remove source 10 AR: setAudioMode 32 – iOSDev Sep 04 '09 at 04:45

Maksym Gontar · Answer 2 · 2009-09-02T16:21:33.563

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.

execution stopped at: InputStream is = clazz .getResourceAsStream( "file:///SDCard/BlackBerry/original.wav"); — iOSDev, Sep 02 '09 at 09:46
On debugger console,FRIDG: could not find file:/SDCard/BlackBerry/original.wav is displayed. But the file exists at specified location.I also tried playing other files, none of them are being played...Please help. — iOSDev, Sep 02 '09 at 11:04
updated according to Fostah answer. and don't forget to simulate SD Card ;) — Maksym Gontar, Sep 02 '09 at 16:25

Audio files not Playing in Blackberry

2 Answers2