Two simple fixes to We Char QR Code module:

- decodemgr.cpp: fix messed: width <--> height
- unicomblock.cpp: fix wrong type at sizeof(...)

modules/wechat_qrcode/src/decodermgr.cpp

@@ -33,7 +33,7 @@ int DecoderMgr::decodeImage(cv::Mat src, bool use_nn_detector, vector<string>& r
     decode_hints_.setUseNNDetector(use_nn_detector);
 
     Ref<ImgSource> source;
-    qbarUicomBlock_ = new UnicomBlock(width, height);
+    qbarUicomBlock_ = new UnicomBlock(height, width);
 
     // Four Binarizers
     int tryBinarizeTime = 4;
@@ -89,4 +89,4 @@ vector<Ref<Result>> DecoderMgr::Decode(Ref<BinaryBitmap> image, DecodeHints hint
     return reader_->decode(image, hints);
 }
 }  // namespace wechat_qrcode
-}  // namespace cv
+}  // namespace cv

modules/wechat_qrcode/src/zxing/common/unicomblock.cpp

@@ -26,7 +26,7 @@ void UnicomBlock::Init() {
 
 void UnicomBlock::Reset(Ref<BitMatrix> poImage) {
     m_poImage = poImage;
-    memset(&m_vcIndex[0], 0, m_vcIndex.size() * sizeof(short));
+    memset(&m_vcIndex[0], 0, m_vcIndex.size() * sizeof(m_vcIndex[0]));
     m_iNowIdx = 0;
 }