public class PictureView extends View {
    public static InputStream m_inStream;
    private int m_width = 320; //512;//640;
    private int m_height = 240; //512;//480;
    private int[] m_rgbData;
    private byte[] m_yuvData;
    private int m_yuv_size;
    private int m_rgb_size;
    private Context m_context;
    private Timer m_timer;
    private Handler m_handler;




    public PictureView(Context context, AttributeSet attrs) {
        super(context, attrs);
        m_context = context;

        m_yuv_size = (int)(m_width * m_height * 2.0f);
        m_rgb_size = (int)(m_width * m_height);

        m_yuvData = new byte[m_yuv_size];
        m_rgbData = new int[m_rgb_size];



        m_handler = new Handler() {
            public void handleMessage(Message msg) {
                if(readNextFrame()) {
                convertToRGB();
                invalidate();

                }
            }
        };

        m_timer = new Timer();
        m_timer.schedule(new TimerTask() {
            @Override
            public void run() {
                m_handler.obtainMessage(1).sendToTarget();

            }
        }, 0, 32);


    }

    @Override
    protected void onDraw(Canvas canvas) {
        super.onDraw(canvas);
        Bitmap bmp = Bitmap.createBitmap(m_width, m_height, Bitmap.Config.ARGB_8888);
        bmp.setPixels(m_rgbData, 0, m_width, 0, 0, m_width, m_height);
        canvas.drawBitmap(bmp, 0, 0, null);
    }

    private boolean readNextFrame() {
        try {
            int available = m_inStream.available();
            if(available <= 0) return false;
            if(m_yuv_size > available)
                m_yuv_size = available;
            m_inStream.read(m_yuvData, 0, m_yuv_size);
        } catch(Exception e) {
            e.printStackTrace();
        }
        return true;
    }

    private void convertToRGB() {

        // YUY2 to RGB.
        int rgbIndex =0 ;
        for (int j = 0, yp = 0; j < m_height; j++) {
            int u = 0, v = 0;


            for (int i = 0; i < (m_width>>1); i++, yp+=4,rgbIndex++) {
                int y = (0xff & ((int) m_yuvData[yp]))- 16;
                if (y < 0)
                    y = 0;
                if ((i & 1) == 0) {
                    u = (0xff & m_yuvData[yp + 1]) - 128;
                    v = (0xff & m_yuvData[yp + 3]) - 128;

                }



                if (y < 0)
                    y = 0;



                int y1164 = 1164 * y;
                int r = (y1164 + 1696 * v);
                int g = (y1164 - 833 * v - 391 * u);
                int b = (y1164 + 2066 * u);


                if (r < 0)
                    r = 0;
                else if (r > 262143)
                    r = 262143;
                if (g < 0)
                    g = 0;
                else if (g > 262143)
                    g = 262143;
                if (b < 0)
                    b = 0;
                else if (b > 262143)
                    b = 262143;

                m_rgbData[rgbIndex++] = 0xff000000 | ((r << 6) & 0xff0000) | ((g >> 2) & 0xff00) | ((b >> 10) & 0xff);

                y = (0xff & ((int) m_yuvData[yp+2]))- 16;
                if (y < 0)
                    y = 0;

                y1164 = 1164 * y;
                r = (y1164 + 1696 * v);
                g = (y1164 - 833 * v - 391 * u);
                b = (y1164 + 2066 * u);

                //offers clamping control
                if (r < 0)
                    r = 0;
                else if (r > 262143)
                    r = 262143;
                if (g < 0)
                    g = 0;
                else if (g > 262143)
                    g = 262143;
                if (b < 0)
                    b = 0;
                else if (b > 262143)
                    b = 262143;

                m_rgbData[rgbIndex] = 0xff000000 | ((r << 6) & 0xff0000) | ((g >> 2) & 0xff00) | ((b >> 10) & 0xff);


            }
        }


    }
}