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Android

can you play a byte array through mediaplayer?

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Posts: 96

posted 3 weeks ago

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i am trying to capture audio into array and play it through mediaplayer with audio effects but am having problems setting the mediaplayer source and was wondering if it could be done

protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
        ParcelFileDescriptor[] descriptors = new ParcelFileDescriptor[0];
        try {
            descriptors = ParcelFileDescriptor.createPipe();
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
        ParcelFileDescriptor parcelRead = new ParcelFileDescriptor(descriptors[0]);
        ParcelFileDescriptor parcelWrite = new ParcelFileDescriptor(descriptors[1]);
        InputStream inputStream = new ParcelFileDescriptor.AutoCloseInputStream(parcelRead);
        MediaRecorder recorder = new MediaRecorder();
        MediaPlayer mp=new MediaPlayer();
        recorder.setAudioSource(MediaRecorder.AudioSource.DEFAULT);//this was mic
        recorder.setOutputFormat(MediaRecorder.OutputFormat.AMR_NB);
        recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
        recorder.setOutputFile(parcelWrite.getFileDescriptor());
        try {
            recorder.prepare();
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
        recorder.start();
        int read;
        byte[] data = new byte[16384];
        while (true) {
            try {

if (!((read = inputStream.read(data, 0, data.length)) != -1))

mp.setDataSource(read);//this is where i am having problems

mp.prepare();
                    mp.start();
                    break;

} catch (IOException e) {
                throw new RuntimeException(e);
            }
            byteArrayOutputStream.write(data, 0, read);
        }

try {
            byteArrayOutputStream.flush();
        } catch (IOException e) {
            throw new RuntimeException(e);
        }

}
}

thanks for any help provided have been reading api for an hour

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