sim.android.media.AudioRecordClient Maven / Gradle / Ivy

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package sim.android.media;

import java.io.IOException;
import java.io.ObjectInputStream;
import java.net.Socket;
import java.net.UnknownHostException;

import android.util.Log;

import sim.android.media.service.AudioStreamDataPacket;

public class AudioRecordClient {

    private final static String TAG = "AudioRecord";
    private String ip;
    private int port;
    private Socket socket;
    private ObjectInputStream ois;
    private boolean requireAudio = false;

    public AudioRecordClient(String ip, int port) {
        Log.d(TAG, "new AudioRecordClient(" + ip + ":" + port + ")");
        this.ip = ip;
        this.port = port;
    }

    public synchronized boolean native_start() {
        System.out.println("native_startRecording()");
        requireAudio = true;
        try {
            socket = new Socket(ip, port);
            ois = new ObjectInputStream(socket.getInputStream());
        } catch (UnknownHostException e) {
            e.printStackTrace();
            return false;
        } catch (IOException e) {
            e.printStackTrace();
            return false;
        }
        return true;
    }

    public synchronized void native_stop() {
        requireAudio = false;
        try {
            if (ois != null) {
                ois.close();
            }
            if (socket != null) {
                socket.close();
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    private AudioStreamDataPacket getAudioStreamDataPacket() {
        //System.out.println("getAudioStreamDataPacket()");
        if (socket != null && socket.isConnected() && ois != null) {
            try {
                AudioStreamDataPacket asdp = (AudioStreamDataPacket) ois
                        .readObject();
                return asdp;
            } catch (IOException e) {
                e.printStackTrace();
            } catch (ClassNotFoundException e) {
                e.printStackTrace();
            }
        }
        return null;
    }

    public synchronized int native_read_in_byte_array(byte[] audioData,
            int offsetInBytes, int sizeInBytes) {

        AudioStreamDataPacket asdp = getAudioStreamDataPacket();
        if (asdp != null) {
            int numTotalBytes = asdp.numTotalBytes();
            if (numTotalBytes < sizeInBytes) {
                System.arraycopy(asdp.getData(), 0, audioData, offsetInBytes,
                        numTotalBytes);
                return numTotalBytes;
            } else {
                System.arraycopy(asdp.getData(), 0, audioData, offsetInBytes,
                        sizeInBytes);
                return sizeInBytes;
            }
        }
        return 0;
    }

    public synchronized int native_read_in_byte_array(short[] audioData,
            int offsetInShorts, int sizeInShorts) {

        AudioStreamDataPacket asdp = getAudioStreamDataPacket();

        if (asdp != null) {
            byte[] in = asdp.getData();
            int numTotalBytes = asdp.numTotalBytes();
            int numTotalInShort = numTotalBytes / 2;
            //System.out.println("arrived == "+numTotalInShort);
            
            int transferInShort = (numTotalInShort < sizeInShorts) ? numTotalInShort : sizeInShorts;
            //System.out.println("transferInShort == "+transferInShort);
            for (int i = 0; i < transferInShort; i++) {
                audioData[i + offsetInShorts] = (short) ((in[i * 2 + 1] << 8) | (in[i * 2] & 0xFF));
            }
            return transferInShort;
        }
        return 0;
    }
}