6131: How to play an .amr or .mp3 file in SD card?

[gorlab]

Hi all,

I try to play an audio file from the micro SD card in Nokia 6131. The following code is what I used:

try
{
FileConnection fileConnection = (FileConnection) Connector.open(path);
InputStream inputStream = fileConnection.openInputStream();
Player player = Manager.createPlayer(inputStream, mimeType);
player.realize();
String contentType = inputStream.getContentType();
player.setLoopCount(1);
player.start();
}
catch (Exception e)
{
...
}

However, I always get "Device Error" exception during start(). I have verified that getContentType() returns correctly.

I have also tried the MediaSampler midlet (original .jar as well as recompiled .jar), both give the same "Device Error" exception. What could be wrong? Any suggestion on the source code?

[gorlab]

Hi all,

More testing revealed that the exception happens when prefetch() is called. My modified code is as follows:

try
{
FileConnection fileConnection = (FileConnection) Connector.open(path);
InputStream inputStream = fileConnection.openInputStream();
Player player = Manager.createPlayer(inputStream, mimeType);
player.realize();
String contentType = inputStream.getContentType();
if (contentType.equals(mimeType) != true)
{
// error
}
player.prefetch();
player.start();
}
catch (Exception e)
{
// error
}

I have no problem in playing .3gp videos in 6131 using similar code, but none of the audio file I tried (.amr, .mp3, .wav). Anyone has any clue to share?

[dmunsie]

I'm getting the same error with one of our 6131s running v3.50 of the software. We have another one with v3.72 on it, and our application runs fine. This is the only difference between the phones that I've been able to find.

Is this a known issue with v3.50? Or is there something else we should be looking at?

[dmunsie]

I just did a check, and the v3.50 firmware does not report 'audio/mpeg' as one of it's supported content types. Instead it lists 'audio/mpeg3'. But, using 'audio/mpeg3' still yields a MediaException.