From 8facf61bed81570ed0c93302a06dba5adc9c36fd Mon Sep 17 00:00:00 2001
From: Alexander Alekhin <alexander.alekhin@intel.com>
Date: Tue, 28 Jan 2020 15:20:37 +0300
Subject: [PATCH] objdetect(QR): don't introduce deprecated API, compatibility
 code

---
 .../objdetect/include/opencv2/objdetect.hpp   | 60 ++++++++++++-------
 modules/objdetect/src/qrcode.cpp              | 20 -------
 2 files changed, 37 insertions(+), 43 deletions(-)

diff --git a/modules/objdetect/include/opencv2/objdetect.hpp b/modules/objdetect/include/opencv2/objdetect.hpp
index 5bd6a11002..ea7b1ac801 100644
--- a/modules/objdetect/include/opencv2/objdetect.hpp
+++ b/modules/objdetect/include/opencv2/objdetect.hpp
@@ -743,6 +743,43 @@ public:
             OutputArrayOfArrays straight_qrcode = noArray()
     ) const;
 
+
+#ifndef CV_DOXYGEN  // COMPATIBILITY
+    inline bool decodeMulti(
+            InputArray img, InputArray points,
+            CV_OUT std::vector<std::string>& decoded_info,
+            OutputArrayOfArrays straight_qrcode = noArray()
+        ) const
+    {
+        std::vector<cv::String> decoded_info_;
+        bool res = decodeMulti(img, points, decoded_info_, straight_qrcode);
+        decoded_info.resize(decoded_info_.size());
+        for (size_t i = 0; i < decoded_info.size(); ++i)
+        {
+            cv::String s; std::swap(s, decoded_info_[i]);
+            decoded_info[i] = s;
+        }
+        return res;
+    }
+
+    inline bool detectAndDecodeMulti(
+            InputArray img, CV_OUT std::vector<std::string>& decoded_info,
+            OutputArray points = noArray(),
+            OutputArrayOfArrays straight_qrcode = noArray()
+        ) const
+    {
+        std::vector<cv::String> decoded_info_;
+        bool res = detectAndDecodeMulti(img, decoded_info_, points, straight_qrcode);
+        decoded_info.resize(decoded_info_.size());
+        for (size_t i = 0; i < decoded_info.size(); ++i)
+        {
+            cv::String s; std::swap(s, decoded_info_[i]);
+            decoded_info[i] = s;
+        }
+        return res;
+    }
+#endif
+
 protected:
     struct Impl;
     Ptr<Impl> p;
@@ -764,29 +801,6 @@ CV_EXPORTS bool detectQRCode(InputArray in, std::vector<Point> &points, double e
     */
 CV_EXPORTS bool decodeQRCode(InputArray in, InputArray points, std::string &decoded_info, OutputArray straight_qrcode = noArray());
 
-/** @brief Detect QR codes in image and return vector of minimum area of quadrangle that describes QR codes.
-    @param in  Matrix of the type CV_8UC1 containing an image where QR codes are detected.
-    @param points Output vector of vertices of quadrangles of minimal area that describes QR codes.
-    @param eps_x Epsilon neighborhood, which allows you to determine the horizontal pattern of the scheme 1:1:3:1:1 according to QR code standard.
-    @param eps_y Epsilon neighborhood, which allows you to determine the vertical pattern of the scheme 1:1:3:1:1 according to QR code standard.
-    */
-CV_EXPORTS
-bool detectQRCodeMulti(
-        InputArray in, std::vector<Point> &points,
-        double eps_x = 0.2, double eps_y = 0.1);
-
-/** @brief Decode QR codes in image and return text that is encrypted in QR code.
-    @param in  Matrix of the type CV_8UC1 containing an image where QR code are detected.
-    @param points Input vector of vertices of quadrangles of minimal area that describes QR codes.
-    @param decoded_info vector of String information that is encrypted in QR codes.
-    @param straight_qrcode vector of Matrixes of the type CV_8UC1 containing an binary straight QR codes.
-    */
-CV_EXPORTS
-bool decodeQRCodeMulti(
-        InputArray in, InputArray points,
-        CV_OUT std::vector<std::string> &decoded_info,
-        OutputArrayOfArrays straight_qrcode = noArray());
-
 //! @} objdetect
 }
 
diff --git a/modules/objdetect/src/qrcode.cpp b/modules/objdetect/src/qrcode.cpp
index 3467803a25..6ceb6d4ee4 100644
--- a/modules/objdetect/src/qrcode.cpp
+++ b/modules/objdetect/src/qrcode.cpp
@@ -2234,14 +2234,6 @@ bool QRCodeDetector::detectMulti(InputArray in, OutputArray points) const
     return true;
 }
 
-bool detectQRCodeMulti(InputArray in, vector< Point > &points, double eps_x, double eps_y)
-{
-    QRCodeDetector qrdetector;
-    qrdetector.setEpsX(eps_x);
-    qrdetector.setEpsY(eps_y);
-    return qrdetector.detectMulti(in, points);
-}
-
 class ParallelDecodeProcess : public ParallelLoopBody
 {
 public:
@@ -2385,16 +2377,4 @@ bool QRCodeDetector::detectAndDecodeMulti(
     return ok;
 }
 
-bool decodeQRCodeMulti(
-        InputArray in, InputArray points,
-        vector<std::string> &decoded_info, OutputArrayOfArrays straight_qrcode)
-{
-    QRCodeDetector qrcode;
-    vector<cv::String> info;
-    bool ok = qrcode.decodeMulti(in, points, info, straight_qrcode);
-    for (size_t i = 0; i < info.size(); i++)
-        decoded_info.push_back(info[i]);
-    return ok;
-}
-
 }  // namespace
-- 
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