8000 摄像头预览时调用findQRCodeBounding导致OOM · Issue #25 · imageprocessor/cv4j · GitHub
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摄像头预览时调用findQRCodeBounding导致OOM #25

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xiaojigugu opened this issue Jun 10, 2020 · 1 comment
Open

摄像头预览时调用findQRCodeBounding导致OOM #25

xiaojigugu opened this issue Jun 10, 2020 · 1 comment

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@xiaojigugu
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        public void onPreviewFrame(final byte[] data, final int width, final int height) {
            super.onPreviewFrame(data, width, height);
            threadPoolManager.addTask(new Runnable() {
                @Override
                public void run() {
                    findQRCode(data, width, height);
                }
            });
        }

private void findQRCode(byte[] data, int width, int height) {
    YuvImage img = new YuvImage(data, ImageFormat.NV21, width, height, null);
    ByteArrayOutputStream stream = new ByteArrayOutputStream();
    img.compressToJpeg(new android.graphics.Rect(0, 0, width, height), 100, stream);
    Bitmap bitmap = BitmapFactory.decodeByteArray(stream.toByteArray(), 0, stream.size());

    CV4JImage cv4JImage = new CV4JImage(bitmap);
    QRCodeScanner qrCodeScanner = new QRCodeScanner();
   //这一行会导致OOM
    Rect qrCodeBounding = qrCodeScanner.findQRCodeBounding(cv4JImage.getProcessor(), width, height);
    bitmap.recycle();
    Log.i(getClass().getSimpleName(), "findQRCode: width" + qrCodeBounding.width + ",height:" + qrCodeBounding.height);
}

请问还有什么别的方法能找寻二维码区域吗
@cyzaoj
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cyzaoj commented Jun 24, 2021

+1

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@cyzaoj @xiaojigugu
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