build: upgrade to go 1.17 and upgrade dependencies

vendor/gocv.io/x/gocv/objdetect.go

@@ -211,6 +211,7 @@ func (a *QRCodeDetector) Close() error {
 
 // DetectAndDecode Both detects and decodes QR code.
 //
+// Returns true as long as some QR code was detected even in case where the decoding failed
 // For further details, please see:
 // https://docs.opencv.org/master/de/dc3/classcv_1_1QRCodeDetector.html#a7290bd6a5d59b14a37979c3a14fbf394
 //
@@ -238,3 +239,47 @@ func (a *QRCodeDetector) Decode(input Mat, points Mat, straight_qrcode *Mat) str
 	goResult := C.GoString(C.QRCodeDetector_DetectAndDecode(a.p, input.p, points.p, straight_qrcode.p))
 	return string(goResult)
 }
+
+// Detects QR codes in image and finds of the quadrangles containing the codes.
+//
+// Each quadrangle would be returned as a row in the `points` Mat and each point is a Vecf.
+// Returns true if QR code was detected
+// For usage please see TestQRCodeDetector
+// For further details, please see:
+// https://docs.opencv.org/master/de/dc3/classcv_1_1QRCodeDetector.html#aaf2b6b2115b8e8fbc9acf3a8f68872b6
+func (a *QRCodeDetector) DetectMulti(input Mat, points *Mat) bool {
+	result := C.QRCodeDetector_DetectMulti(a.p, input.p, points.p)
+	return bool(result)
+}
+
+// Detects QR codes in image and finds of the quadrangles containing the codes and decode the decode the QRCodes to strings.
+//
+// Each quadrangle would be returned as a row in the `points` Mat and each point is a Vecf.
+// Returns true as long as some QR code was detected even in case where the decoding failed
+// For usage please see TestQRCodeDetector
+// For further details, please see:
+//https://docs.opencv.org/master/de/dc3/classcv_1_1QRCodeDetector.html#a188b63ffa17922b2c65d8a0ab7b70775
+func (a *QRCodeDetector) DetectAndDecodeMulti(input Mat, decoded *[]string, points *Mat, qrCodes *[]Mat) bool {
+	cDecoded := C.CStrings{}
+	defer C.CStrings_Close(cDecoded)
+	cQrCodes := C.struct_Mats{}
+	defer C.Mats_Close(cQrCodes)
+	success := C.QRCodeDetector_DetectAndDecodeMulti(a.p, input.p, &cDecoded, points.p, &cQrCodes)
+	if !success {
+		return bool(success)
+	}
+
+	tmpCodes := make([]Mat, cQrCodes.length)
+	for i := C.int(0); i < cQrCodes.length; i++ {
+		tmpCodes[i].p = C.Mats_get(cQrCodes, i)
+	}
+
+	for _, qr := range tmpCodes {
+		*qrCodes = append(*qrCodes, qr)
+	}
+
+	for _, s := range toGoStrings(cDecoded) {
+		*decoded = append(*decoded, s)
+	}
+	return bool(success)
+}