I have problem with setDataSource(FileDescriptor) or setDataSource(FileDescriptor, offset, length).

The following works:
...
case LOCAL_AUDIO:
path = "/sdcard/sample.wav";
mMediaPlayer = new MediaPlayer();
mMediaPlayer.setDataSource(path); // this works
mMediaPlayer.prepare();
mMediaPlayer.start();
...

If I use the following, a prepare() error and setDatasource() error throwed as IOException both on emulator 1.6 and 2.0:
....
// sample.wav has size about 400,000 bytes
File f = new File(android.os.Environment.getExternalStorageDirectory()+"/sample.wav");
FileInputStream fileIS = null;
FileDescriptor fd = null;
fileIS = new FileInputStream(f);
fd = fileIS.getFD(); // seems work as no "Filenotfound" exception throwed
mMediaPlayer = new MediaPlayer();
mMediaPlayer.setDataSource(fd, 1, 200000); // error
mMediaPlayer.prepare(); // error , prepareAsync() also doesn't work
mMediaPlayer.start();
....

I am new to android and is it wrong with the filestream / filedescriptor?

Thanks in advance for any help!

Hi wpaccount,

Put your media file in raw folder and use AssetFileDescriptor.
Then From AssetFileDescriptor, use the function getFileDescriptor() to get fileDescriptor.

AssetFileDescriptor afd = context.getResources().openRawResourceFd(
R.raw.filename);


Thanks