private static void bundleThumbnail(PlanarYUVLuminanceSource source, Bundle bundle) {
int[] pixels = source.renderThumbnail();
int width = source.getThumbnailWidth();
int height = source.getThumbnailHeight();
Bitmap bitmap = Bitmap.createBitmap(pixels, 0, width, width, height, Bitmap.Config.ARGB_8888);
ByteArrayOutputStream out = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.JPEG, 50, out);
bundle.putByteArray(DecodeThread.BARCODE_BITMAP, out.toByteArray());
}
/**
* 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);
// ------------------------------------
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];
}
int tmp = width; // Here we are swapping, that's the difference to #11
width = height;
height = tmp;
PlanarYUVLuminanceSource source =
activity.getCameraManager().buildLuminanceSource(rotatedData, 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();
Bitmap grayscaleBitmap = toBitmap(source, source.renderCroppedGreyscaleBitmap());
bundle.putParcelable(DecodeThread.BARCODE_BITMAP, grayscaleBitmap);
message.setData(bundle);
message.sendToTarget();
}
} else {
if (handler != null) {
Message message = Message.obtain(handler, R.id.decode_failed);
message.sendToTarget();
}
}
}
private void decode(final byte[] data) {
final PlanarYUVLuminanceSource source = cameraManager.buildLuminanceSource(data);
final BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
try {
hints.put(
DecodeHintType.NEED_RESULT_POINT_CALLBACK,
new ResultPointCallback() {
@Override
public void foundPossibleResultPoint(final ResultPoint dot) {
runOnUiThread(
new Runnable() {
@Override
public void run() {
scannerView.addDot(dot);
}
});
}
});
final Result scanResult = reader.decode(bitmap, hints);
final int thumbnailWidth = source.getThumbnailWidth();
final int thumbnailHeight = source.getThumbnailHeight();
final float thumbnailScaleFactor = (float) thumbnailWidth / source.getWidth();
final Bitmap thumbnailImage =
Bitmap.createBitmap(thumbnailWidth, thumbnailHeight, Bitmap.Config.ARGB_8888);
thumbnailImage.setPixels(
source.renderThumbnail(), 0, thumbnailWidth, 0, 0, thumbnailWidth, thumbnailHeight);
runOnUiThread(
new Runnable() {
@Override
public void run() {
handleResult(scanResult, thumbnailImage, thumbnailScaleFactor);
}
});
} catch (final ReaderException x) {
// retry
cameraHandler.post(fetchAndDecodeRunnable);
} finally {
reader.reset();
}
}
public String attemptDecodeBytes(byte[] bytes, Camera camera) {
Result rawResult = null;
Reader reader = new QRCodeReader();
int w = camera.getParameters().getPreviewSize().width;
int h = camera.getParameters().getPreviewSize().height;
PlanarYUVLuminanceSource source = new PlanarYUVLuminanceSource(bytes, w, h, 0, 0, w, h, false);
if (source.getMatrix() != null) {
BinaryBitmap bitmap = new BinaryBitmap(new GlobalHistogramBinarizer(source));
try {
rawResult = reader.decode(bitmap);
} catch (ReaderException re) {
// nothing to do here
} finally {
reader.reset();
}
}
if (rawResult != null) {
Log.d(TAG, "QR code found " + rawResult.getText());
return rawResult.getText();
} else {
return null;
}
}