Fix OpenCV build with OpenEXR before 2.2.0

Fix-OpenCV-build-with-OpenEXR-before-2.2.0.patch

@@ -0,0 +1,55 @@
+From 083a7c8f0a71076d4f2f5130d70abaedb2f8c8a5 Mon Sep 17 00:00:00 2001
+From: Alexander Smorkalov <alexander.smorkalov@xperience.ai>
+Date: Wed, 28 Apr 2021 10:41:59 +0300
+Subject: [PATCH] Fix OpenCV build with OpenEXR before 2.2.0.
+
+---
+ modules/imgcodecs/include/opencv2/imgcodecs.hpp | 4 ++--
+ modules/imgcodecs/src/grfmt_exr.cpp             | 3 +++
+ 2 files changed, 5 insertions(+), 2 deletions(-)
+
+diff --git a/modules/imgcodecs/include/opencv2/imgcodecs.hpp b/modules/imgcodecs/include/opencv2/imgcodecs.hpp
+index 42227f3788..101a944146 100644
+--- a/modules/imgcodecs/include/opencv2/imgcodecs.hpp
++++ b/modules/imgcodecs/include/opencv2/imgcodecs.hpp
+@@ -120,8 +120,8 @@ enum ImwriteEXRCompressionFlags {
+        IMWRITE_EXR_COMPRESSION_PXR24 = 5, //!< lossy 24-bit float compression
+        IMWRITE_EXR_COMPRESSION_B44   = 6, //!< lossy 4-by-4 pixel block compression, fixed compression rate
+        IMWRITE_EXR_COMPRESSION_B44A  = 7, //!< lossy 4-by-4 pixel block compression, flat fields are compressed more
+-       IMWRITE_EXR_COMPRESSION_DWAA  = 8, //!< lossy DCT based compression, in blocks of 32 scanlines. More efficient for partial buffer access.
+-       IMWRITE_EXR_COMPRESSION_DWAB  = 9, //!< lossy DCT based compression, in blocks of 256 scanlines. More efficient space wise and faster to decode full frames than DWAA_COMPRESSION.
++       IMWRITE_EXR_COMPRESSION_DWAA  = 8, //!< lossy DCT based compression, in blocks of 32 scanlines. More efficient for partial buffer access. Supported since OpenEXR 2.2.0.
++       IMWRITE_EXR_COMPRESSION_DWAB  = 9, //!< lossy DCT based compression, in blocks of 256 scanlines. More efficient space wise and faster to decode full frames than DWAA_COMPRESSION. Supported since OpenEXR 2.2.0.
+      };
+ 
+ //! Imwrite PNG specific flags used to tune the compression algorithm.
+diff --git a/modules/imgcodecs/src/grfmt_exr.cpp b/modules/imgcodecs/src/grfmt_exr.cpp
+index aaf28eead6..7acaf434c6 100644
+--- a/modules/imgcodecs/src/grfmt_exr.cpp
++++ b/modules/imgcodecs/src/grfmt_exr.cpp
+@@ -64,6 +64,7 @@
+ #include <ImfStandardAttributes.h>
+ #include <half.h>
+ #include "grfmt_exr.hpp"
++#include "OpenEXRConfig.h"
+ 
+ #if defined _WIN32
+ 
+@@ -649,12 +650,14 @@ bool  ExrEncoder::write( const Mat& img, const std::vector<int>& params )
+             case IMWRITE_EXR_COMPRESSION_B44A:
+                 header.compression() = B44A_COMPRESSION;
+                 break;
++#if ((OPENEXR_VERSION_MAJOR * 1000 + OPENEXR_VERSION_MINOR) >= (2 * 1000 + 2)) // available since version 2.2.0
+             case IMWRITE_EXR_COMPRESSION_DWAA:
+                 header.compression() = DWAA_COMPRESSION;
+                 break;
+             case IMWRITE_EXR_COMPRESSION_DWAB:
+                 header.compression() = DWAB_COMPRESSION;
+                 break;
++#endif
+             default:
+                 CV_Error(Error::StsBadArg, "IMWRITE_EXR_COMPRESSION is invalid or not supported");
+             }
+-- 
+2.29.2.windows.2
+

opencv.spec

@@ -1,6 +1,6 @@
 Name:		opencv
 Version:	4.5.2
-Release:	1
+Release:	2
 Summary:	OpenCV means Intel® Open Source Computer Vision Library.
 License:	Apache-2.0
 URL:		https://github.com/opencv/opencv
@@ -11,6 +11,7 @@ Source3:    opencv_extra-4.5.2.tar.gz.ab
 Source4:    opencv_extra-4.5.2.tar.gz.ac
 Source5:    opencv_extra-4.5.2.tar.gz.ad
 Source6:    opencv_extra-4.5.2.tar.gz.ae
+Patch1:     Fix-OpenCV-build-with-OpenEXR-before-2.2.0.patch
 BuildRequires:	gcc-c++ gcc autoconf pkgconfig protobuf-compiler protobuf
 BuildRequires:  cmake
 BuildRequires:  libjpeg-devel
@@ -74,5 +75,8 @@ make install DESTDIR=%{buildroot}
 %exclude /usr/local/share/*
 
 %changelog
+* Wed Nov 10 2021 yanhailiang <yanhailiang@huawei.com> - 4.5.2-2
+- bugFix OpenCV build with OpenEXR before 2.2.0
+
 * Wed Sep 30 2021 shenwei <shenwei41@huawei.com> - 4.5.2-1
 - package init