/**
* 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 = CameraManager.get().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(), 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();
}
}
/**
* 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, DECODE_COMPLETE, rawResult);
Bundle bundle = new Bundle();
bundle.putParcelable(DecodeThread.BARCODE_BITMAP, source.renderCroppedGreyscaleBitmap());
message.setData(bundle);
message.sendToTarget();
}
} else {
if (handler != null) {
Message message = Message.obtain(handler, DECODE_FAILED);
message.sendToTarget();
}
}
}
/**
* Perform an OCR decode for realtime recognition mode.
*
* @param data Image data
* @param width Image width
* @param height Image height
*/
private void ocrContinuousDecode(byte[] data, int width, int height) {
PlanarYUVLuminanceSource source =
activity.getCameraManager().buildLuminanceSource(data, width, height);
if (source == null) {
sendContinuousOcrFailMessage();
return;
}
bitmap = source.renderCroppedGreyscaleBitmap();
OcrResult ocrResult = getOcrResult();
Handler handler = activity.getHandler();
if (handler == null) {
return;
}
if (ocrResult == null) {
try {
sendContinuousOcrFailMessage();
} catch (NullPointerException e) {
activity.stopHandler();
} finally {
bitmap.recycle();
baseApi.clear();
}
return;
}
try {
Message message = Message.obtain(handler, R.id.ocr_continuous_decode_succeeded, ocrResult);
message.sendToTarget();
} catch (NullPointerException e) {
activity.stopHandler();
} finally {
baseApi.clear();
}
}
