Example usage for android.media AudioTrack PLAYSTATE_PLAYING

Introduction

In this page you can find the example usage for android.media AudioTrack PLAYSTATE_PLAYING.

Prototype

int PLAYSTATE_PLAYING

To view the source code for android.media AudioTrack PLAYSTATE_PLAYING.

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Document

indicates AudioTrack state is playing

Usage

From source file:zlyh.dmitry.recaller.threading.PlayBlockThread.java

@Override
public void run() {
    AudioTrack audioTrack = null;//from   ww  w  .j  av  a 2 s. c o  m
    FileInputStream in = null;

    try {
        File rawpcm = new File(path);
        if (!rawpcm.exists()) {
            this.interrupt();
        }

        togglePlaying(true);

        final int audioLength = (int) rawpcm.length();
        final int minBufferSize = AudioRecord.getMinBufferSize(RecordRunnable.frequency,
                AudioFormat.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT);
        audioTrack = new AudioTrack(AudioManager.STREAM_MUSIC, RecordRunnable.frequency,
                AudioFormat.CHANNEL_OUT_MONO, AudioFormat.ENCODING_PCM_16BIT, minBufferSize,
                AudioTrack.MODE_STREAM);

        final int block = 256 * 1024;
        byte[] byteData = new byte[block];

        try {
            in = new FileInputStream(rawpcm);
        } catch (FileNotFoundException e) {
            e.printStackTrace();
            this.interrupt();
        }

        if (in != null) {
            try {
                int bytesread = 0;
                int offset;
                audioTrack.play();
                while (bytesread < audioLength && !isInterrupted()) {
                    offset = in.read(byteData, 0, block);
                    if (offset != -1) {
                        audioTrack.write(byteData, 0, offset);
                        bytesread += offset;
                    } else {
                        break;
                    }
                }
                in.close();

                togglePlaying(false);

                if (audioTrack.getState() == AudioTrack.PLAYSTATE_PLAYING) {
                    audioTrack.stop();
                }

                if (audioTrack.getState() == AudioTrack.STATE_INITIALIZED) {
                    audioTrack.release();
                }
            } catch (Exception e) {
                e.printStackTrace();
                try {
                    in.close();
                } catch (IOException e1) {
                    e1.printStackTrace();
                }

                if (audioTrack.getState() == AudioTrack.PLAYSTATE_PLAYING) {
                    audioTrack.stop();
                }
                if (audioTrack.getState() == AudioTrack.STATE_INITIALIZED) {
                    audioTrack.release();
                }
                togglePlaying(false);

            }
        }
    } catch (Exception e) {
        e.printStackTrace();
        if (audioTrack != null) {
            if (audioTrack.getState() == AudioTrack.PLAYSTATE_PLAYING) {
                audioTrack.stop();
            }
            if (audioTrack.getState() == AudioTrack.STATE_INITIALIZED) {
                audioTrack.release();
            }
        }

        if (in != null) {
            try {
                in.close();
            } catch (IOException e1) {
                e1.printStackTrace();
            }
        }
        togglePlaying(false);

    }

}

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