Examples with LineEvent javax.sound.sampled.LineEvent used on opensource projects

Example 11 with LineEvent

use of javax.sound.sampled.LineEvent in project jdk8u_jdk by JetBrains.

the class AbstractDataLine method setStarted.

/**
     * This method sets the started state and generates
     * events if it changes.
     */
final void setStarted(boolean started) {
    if (Printer.trace)
        Printer.trace("> AbstractDataLine: setStarted(" + started + ")");
    boolean sendEvents = false;
    long position = getLongFramePosition();
    synchronized (this) {
        if (this.started != started) {
            this.started = started;
            sendEvents = true;
        }
    }
    if (sendEvents) {
        if (started) {
            sendEvents(new LineEvent(this, LineEvent.Type.START, position));
        } else {
            sendEvents(new LineEvent(this, LineEvent.Type.STOP, position));
        }
    }
    if (Printer.trace)
        Printer.trace("< AbstractDataLine: setStarted completed");
}

Example 12 with LineEvent

use of javax.sound.sampled.LineEvent in project jdk8u_jdk by JetBrains.

the class SoftMixingSourceDataLine method open.

public void open(AudioFormat format, int bufferSize) throws LineUnavailableException {
    LineEvent event = null;
    if (bufferSize < format.getFrameSize() * 32)
        bufferSize = format.getFrameSize() * 32;
    synchronized (control_mutex) {
        if (!isOpen()) {
            if (!mixer.isOpen()) {
                mixer.open();
                mixer.implicitOpen = true;
            }
            event = new LineEvent(this, LineEvent.Type.OPEN, 0);
            this.bufferSize = bufferSize - bufferSize % format.getFrameSize();
            this.format = format;
            this.framesize = format.getFrameSize();
            this.outputformat = mixer.getFormat();
            out_nrofchannels = outputformat.getChannels();
            in_nrofchannels = format.getChannels();
            open = true;
            mixer.getMainMixer().openLine(this);
            cycling_buffer = new byte[framesize * bufferSize];
            cycling_read_pos = 0;
            cycling_write_pos = 0;
            cycling_avail = 0;
            cycling_framepos = 0;
            InputStream cycling_inputstream = new InputStream() {

                public int read() throws IOException {
                    byte[] b = new byte[1];
                    int ret = read(b);
                    if (ret < 0)
                        return ret;
                    return b[0] & 0xFF;
                }

                public int available() throws IOException {
                    synchronized (cycling_buffer) {
                        return cycling_avail;
                    }
                }

                public int read(byte[] b, int off, int len) throws IOException {
                    synchronized (cycling_buffer) {
                        if (len > cycling_avail)
                            len = cycling_avail;
                        int pos = cycling_read_pos;
                        byte[] buff = cycling_buffer;
                        int buff_len = buff.length;
                        for (int i = 0; i < len; i++) {
                            b[off++] = buff[pos];
                            pos++;
                            if (pos == buff_len)
                                pos = 0;
                        }
                        cycling_read_pos = pos;
                        cycling_avail -= len;
                        cycling_framepos += len / framesize;
                    }
                    return len;
                }
            };
            afis = AudioFloatInputStream.getInputStream(new AudioInputStream(cycling_inputstream, format, AudioSystem.NOT_SPECIFIED));
            afis = new NonBlockingFloatInputStream(afis);
            if (Math.abs(format.getSampleRate() - outputformat.getSampleRate()) > 0.000001)
                afis = new AudioFloatInputStreamResampler(afis, outputformat);
        } else {
            if (!format.matches(getFormat())) {
                throw new IllegalStateException("Line is already open with format " + getFormat() + " and bufferSize " + getBufferSize());
            }
        }
    }
    if (event != null)
        sendEvent(event);
}

Example 13 with LineEvent

use of javax.sound.sampled.LineEvent in project jdk8u_jdk by JetBrains.

the class SoftMixingMixer method close.

public void close() {
    if (!isOpen())
        return;
    sendEvent(new LineEvent(this, LineEvent.Type.CLOSE, AudioSystem.NOT_SPECIFIED));
    SoftAudioPusher pusher_to_be_closed = null;
    AudioInputStream pusher_stream_to_be_closed = null;
    synchronized (control_mutex) {
        if (pusher != null) {
            pusher_to_be_closed = pusher;
            pusher_stream_to_be_closed = pusher_stream;
            pusher = null;
            pusher_stream = null;
        }
    }
    if (pusher_to_be_closed != null) {
        // Pusher must not be closed synchronized against control_mutex
        // this may result in synchronized conflict between pusher and
        // current thread.
        pusher_to_be_closed.stop();
        try {
            pusher_stream_to_be_closed.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    synchronized (control_mutex) {
        if (mainmixer != null)
            mainmixer.close();
        open = false;
        if (sourceDataLine != null) {
            sourceDataLine.drain();
            sourceDataLine.close();
            sourceDataLine = null;
        }
    }
}