Examples with PlanarYUVLuminanceSource cn.teachcourse.scancode.camera.PlanarYUVLuminanceSource used on opensource projects

Example 1 with PlanarYUVLuminanceSource

use of cn.teachcourse.scancode.camera.PlanarYUVLuminanceSource in project BlogSource by TeachCourse.

the class DecodeHandler method decode.

/**
 * Decode the data within the viewfinder rectangle, and time how long it
 * took. For efficiency, reuse the same reader objects from one decode to
 * the next.
 *
 * @param data
 *            The YUV preview frame.
 * @param width
 *            The width of the preview frame.
 * @param height
 *            The height of the preview frame.
 */
private void decode(byte[] data, int width, int height) {
    long start = System.currentTimeMillis();
    Result rawResult = null;
    /**
     * 竖屏显示开始 *
     */
    byte[] rotatedData = new byte[data.length];
    for (int y = 0; y < height; y++) {
        for (int x = 0; x < width; x++) rotatedData[x * height + height - y - 1] = data[x + y * width];
    }
    // Here we are swapping, that's the difference to #11
    int tmp = width;
    width = height;
    height = tmp;
    data = rotatedData;
    /**
     * 竖屏显示结束 *
     */
    PlanarYUVLuminanceSource source = activity.getCameraManager().buildLuminanceSource(data, width, height);
    BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
    try {
        rawResult = multiFormatReader.decodeWithState(bitmap);
    } catch (ReaderException re) {
    // continue
    } finally {
        multiFormatReader.reset();
    }
    if (rawResult != null) {
        long end = System.currentTimeMillis();
        Log.d(TAG, "Found barcode (" + (end - start) + " ms):\n" + rawResult.toString());
        Message message = Message.obtain(activity.getHandler(), MessageIDs.decode_succeeded, rawResult);
        Bundle bundle = new Bundle();
        bundle.putParcelable(DecodeThread.BARCODE_BITMAP, source.renderCroppedGreyscaleBitmap());
        message.setData(bundle);
        // LogUtil.d(TAG, "Sending decode succeeded message...");
        message.sendToTarget();
    } else {
        Message message = Message.obtain(activity.getHandler(), MessageIDs.decode_failed);
        message.sendToTarget();
    }
}