Java Development

[Krishmib]

Hi,

    I am creating one media player application for Blackberry Devices with JDE 4.2 and i am trying to play a MP3 song file available on Server. But i am getting http connection time out exception. The same code is working for MIDI type of audio file with JDE 4.0

Following is code snap:

        try {
            String url = "http://~URL~/Data/AAAAA.mp3";

            //String url = "http://~URL~/Data/AAAAA.mid";

            // Above commented code works perfectly with JDE 4.0

 
            HttpConnection httpConnection = (HttpConnection) Connector
            .open(url);
            InputStream inputStream = httpConnection.openInputStream();

           
            String types[] = Manager.getSupportedContentTypes(null);
            for (int i = 0; i < types.length; i++) {
                System.out.println(types[i]);
            }

            Player p = Manager.createPlayer(inputStream, "audio/midi");

            p.addPlayerListener(this);
           
            p.realize();
            p.prefetch();
            p.start();
        } catch (IOException ioEx) {
            Status.show(ioEx.getMessage());
        } catch (MediaException meEx) {
            Status.show("Media Exception");
            meEx.printStackTrace();
        } catch (Exception e) {
            Status.show("Exception");
        }

    Please provide me suggetions to remove this exception.

Thanks,

Shiva

[dchapiesky]

Check your MIME type "audio/midi" is not correct for playing an mp3....

try "audio/mpeg"

Daniel

[Krishmib]

Thanks for ur response

    I have configure audio/mpeg for running MP3 file and audio/mid for midi file. I tried to run the application with MDS and it works only for audio/mid. I am using JDE 4.2 currenlty, but i dont know how to configure MDS for it. Let me know how to configure MDS for playing MP3 file from server.

   Thanks in advnaces for your support. 

Thanks

Shiva

Message Edited by Krishmib on 08-01-2008 12:24 AM

[dchapiesky]

Mark Sohm had recommended the following link to some one else for figuring out this kind of connection issue...

http://www.blackberry.com/knowledgecenterpublic/livelink.exe/fetch/2000/348583/800738/800792/801079/...

I pass it on here...

Question:   If you don't use the MDS simulator are you able to play the mp3 directly from the URL? 

Do you have any new code snippets to look at?

Daniel

[dchapiesky]

http://supportforums.blackberry.com/rim/board/message?board.id=java_dev&message.id=830&query.id=8088...

This was the original post I found it in...

[richard_puckett]

I've never supported anything that far back, but I'm wondering if RIM had introduced support for MP3 by 4.0 - I thought that was a relatively recent introduction.

Could you perhaps try http://www.falseflag.com/blackberry/pac/App.java?  Compile and run it on your target device to see if mp3 is supported at all and/or over http.

[Krishmib]

I am able to play MP3 song by full url in all audio players available, but i am not able to access the same url for MP3 file through my blackberry application. I dont have actual device to test the application, for the testing purpose i am using MDS simulator with JDE 4.0 which does not support audio/mpeg.

    Currently I am using JDE 4.2(does not contain MDS) so i am using the MDS simulator of JDE 4.0 and eclipse 3.3.1.1 plugin. With this setup i cant able to run the application.

    It gives a connection timeout exception 

Please view the code below. 

try {
                       

            String url ="http://url~/A.mp3"
            HttpConnection httpConnection = (HttpConnection) Connector
            .open(url);
            InputStream inputStream = httpConnection.openInputStream();

           
            String types[] = Manager.getSupportedContentTypes(null);
            for (int i = 0; i < types.length; i++) {
                System.out.println(types[i]);
            }

            Player p = Manager.createPlayer(inputStream, "audio/mpeg");

            p.addPlayerListener(this);
           
            p.realize();
            p.prefetch();
            p.start();
        } catch (IOException ioEx) {
            Status.show(ioEx.getMessage());
        } catch (MediaException meEx) {
            Status.show("Media Exception");
            meEx.printStackTrace();
        } catch (Exception e) {
            Status.show("Exception");
        }
 

Thanks  

[kzettel]

You should start with a newer version of MDS.  4.1 has an MDS which is what I normally use for 4.2 and 4.2.1 (and also with 4.0).  We haven't had any problems with transferring audio/mpeg files over it but I have not tested your exact scenario. 

I'm not sure if you have already looked at this but here are some useful links on the subject of audio types:

Supported Media Types: 

http://www.blackberry.com/btsc/articles/216/KB05419_f.SAL_Public.html

Knowledge Base Article on Streaming Audio: 

http://www.blackberry.com/knowledgecenterpublic/livelink.exe/fetch/2000/348583/800332/1089414/How_To...