Examples with ReaderException com.google.zxing.ReaderException used on opensource projects

Example 51 with ReaderException

use of com.google.zxing.ReaderException in project barcodescanner by dm77.

the class ZXingScannerView method onPreviewFrame.

@Override
public void onPreviewFrame(byte[] data, Camera camera) {
    if (mResultHandler == null) {
        return;
    }
    try {
        Camera.Parameters parameters = camera.getParameters();
        Camera.Size size = parameters.getPreviewSize();
        int width = size.width;
        int height = size.height;
        if (DisplayUtils.getScreenOrientation(getContext()) == Configuration.ORIENTATION_PORTRAIT) {
            int rotationCount = getRotationCount();
            if (rotationCount == 1 || rotationCount == 3) {
                int tmp = width;
                width = height;
                height = tmp;
            }
            data = getRotatedData(data, camera);
        }
        Result rawResult = null;
        PlanarYUVLuminanceSource source = buildLuminanceSource(data, width, height);
        if (source != null) {
            BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
            try {
                rawResult = mMultiFormatReader.decodeWithState(bitmap);
            } catch (ReaderException re) {
            // continue
            } catch (NullPointerException npe) {
            // This is terrible
            } catch (ArrayIndexOutOfBoundsException aoe) {
            } finally {
                mMultiFormatReader.reset();
            }
            if (rawResult == null) {
                LuminanceSource invertedSource = source.invert();
                bitmap = new BinaryBitmap(new HybridBinarizer(invertedSource));
                try {
                    rawResult = mMultiFormatReader.decodeWithState(bitmap);
                } catch (NotFoundException e) {
                // continue
                } finally {
                    mMultiFormatReader.reset();
                }
            }
        }
        final Result finalRawResult = rawResult;
        if (finalRawResult != null) {
            Handler handler = new Handler(Looper.getMainLooper());
            handler.post(new Runnable() {

                @Override
                public void run() {
                    // Stopping the preview can take a little long.
                    // So we want to set result handler to null to discard subsequent calls to
                    // onPreviewFrame.
                    ResultHandler tmpResultHandler = mResultHandler;
                    mResultHandler = null;
                    stopCameraPreview();
                    if (tmpResultHandler != null) {
                        tmpResultHandler.handleResult(finalRawResult);
                    }
                }
            });
        } else {
            camera.setOneShotPreviewCallback(this);
        }
    } catch (RuntimeException e) {
        // TODO: Terrible hack. It is possible that this method is invoked after camera is released.
        Log.e(TAG, e.toString(), e);
    }
}

Example 52 with ReaderException

use of com.google.zxing.ReaderException in project QRCode by 5peak2me.

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;
    // modify here
    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;
    PlanarYUVLuminanceSource source = CameraManager.get().buildLuminanceSource(rotatedData, 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(), R.id.decode_succeeded, rawResult);
        Bundle bundle = new Bundle();
        bundle.putParcelable(DecodeThread.BARCODE_BITMAP, source.renderCroppedGreyscaleBitmap());
        message.setData(bundle);
        // Log.d(TAG, "Sending decode succeeded message...");
        message.sendToTarget();
    } else {
        Message message = Message.obtain(activity.getHandler(), R.id.decode_failed);
        message.sendToTarget();
    }
}

Example 53 with ReaderException

use of com.google.zxing.ReaderException in project QRCode by 5peak2me.

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;
    // modify here
    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;
    PlanarYUVLuminanceSource source = CameraManager.get().buildLuminanceSource(rotatedData, 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(), R.id.decode_succeeded, rawResult);
        Bundle bundle = new Bundle();
        bundle.putParcelable(DecodeThread.BARCODE_BITMAP, source.renderCroppedGreyscaleBitmap());
        message.setData(bundle);
        // Log.d(TAG, "Sending decode succeeded message...");
        message.sendToTarget();
    } else {
        Message message = Message.obtain(activity.getHandler(), R.id.decode_failed);
        message.sendToTarget();
    }
}

Example 54 with ReaderException

use of com.google.zxing.ReaderException in project android-zxing by PearceXu.

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;
    PlanarYUVLuminanceSource source = activity.getCameraManager().buildLuminanceSource(data, width, height);
    if (source != null) {
        BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
        try {
            rawResult = multiFormatReader.decodeWithState(bitmap);
        } catch (ReaderException re) {
        // continue
        } finally {
            multiFormatReader.reset();
        }
    }
    Handler handler = activity.getHandler();
    if (rawResult != null) {
        // Don't log the barcode contents for security.
        long end = System.currentTimeMillis();
        Log.d(TAG, "Found barcode in " + (end - start) + " ms");
        if (handler != null) {
            Message message = Message.obtain(handler, R.id.decode_succeeded, rawResult);
            Bundle bundle = new Bundle();
            bundleThumbnail(source, bundle);
            message.setData(bundle);
            message.sendToTarget();
        }
    } else {
        if (handler != null) {
            Message message = Message.obtain(handler, R.id.decode_failed);
            message.sendToTarget();
        }
    }
}

Example 55 with ReaderException

use of com.google.zxing.ReaderException in project android-zxing by PearceXu.

the class MultiDetector method detectMulti.

public DetectorResult[] detectMulti(Map<DecodeHintType, ?> hints) throws NotFoundException {
    BitMatrix image = getImage();
    ResultPointCallback resultPointCallback = hints == null ? null : (ResultPointCallback) hints.get(DecodeHintType.NEED_RESULT_POINT_CALLBACK);
    MultiFinderPatternFinder finder = new MultiFinderPatternFinder(image, resultPointCallback);
    FinderPatternInfo[] infos = finder.findMulti(hints);
    if (infos.length == 0) {
        throw NotFoundException.getNotFoundInstance();
    }
    List<DetectorResult> result = new ArrayList<>();
    for (FinderPatternInfo info : infos) {
        try {
            result.add(processFinderPatternInfo(info));
        } catch (ReaderException e) {
        // ignore
        }
    }
    if (result.isEmpty()) {
        return EMPTY_DETECTOR_RESULTS;
    } else {
        return result.toArray(new DetectorResult[result.size()]);
    }
}