hw jpg encoder for orion o6 (#189)

Author: nihui

.github/workflows/release.yml

@@ -76,6 +76,7 @@ jobs:
         rm -rf modules/ts
         sed -e 's/__VERSION__/${{ env.opencv-version }}/g' ../patches/Info.plist > ./Info.plist
         cp ../opencv2_cmake_options.txt ./options.txt
+        cp -r ../toolchains .
         cd ..
         mv opencv-${{ env.opencv-version }} opencv-mobile-${{ env.opencv-version }}
         zip -9 -r opencv-mobile-${{ env.opencv-version }}.zip opencv-mobile-${{ env.opencv-version }}
@@ -153,6 +154,7 @@ jobs:
         rm -rf modules/dnn
         sed -e 's/__VERSION__/${{ env.opencv-version }}/g' ../patches/Info.plist > ./Info.plist
         cp ../opencv3_cmake_options.txt ./options.txt
+        cp -r ../toolchains .
         cd ..
         mv opencv-${{ env.opencv-version }} opencv-mobile-${{ env.opencv-version }}
         zip -9 -r opencv-mobile-${{ env.opencv-version }}.zip opencv-mobile-${{ env.opencv-version }}
@@ -228,6 +230,7 @@ jobs:
         rm -rf modules/dnn
         sed -e 's/__VERSION__/${{ env.opencv-version }}/g' ../patches/Info.plist > ./Info.plist
         cp ../opencv4_cmake_options.txt ./options.txt
+        cp -r ../toolchains .
         cd ..
         mv opencv-${{ env.opencv-version }} opencv-mobile-${{ env.opencv-version }}
         zip -9 -r opencv-mobile-${{ env.opencv-version }}.zip opencv-mobile-${{ env.opencv-version }}
@@ -1787,7 +1790,7 @@ jobs:
               echo "fine :)"
             setup-test-env-cmd: |
               echo "fine :)"
-            cmake-options: -DWITH_RPI=ON
+            cmake-options: -DWITH_KLEIDICV=ON -DWITH_RPI=ON -DWITH_CIX=ON
 
           - name: milkv-duo
             single-core: true

highgui/CMakeLists.txt

@@ -5,6 +5,7 @@ option(WITH_CVI "build with cvi" OFF)
 option(WITH_AW "build with aw" OFF)
 option(WITH_RK "build with rk" OFF)
 option(WITH_RPI "build with rpi" OFF)
+option(WITH_CIX "build with cix" OFF)
 
 set(highgui_srcs
     ${CMAKE_CURRENT_LIST_DIR}/src/exif.cpp
@@ -61,6 +62,13 @@ if(WITH_RPI)
   message(STATUS "highgui rpi enabled")
 endif()
 
+if(WITH_CIX)
+  list(APPEND highgui_srcs
+    ${CMAKE_CURRENT_LIST_DIR}/src/jpeg_encoder_v4l_cix.cpp)
+  add_definitions(-DCV_WITH_CIX=1)
+  message(STATUS "highgui cix enabled")
+endif()
+
 file(GLOB highgui_ext_hdrs
      "${CMAKE_CURRENT_LIST_DIR}/include/opencv2/*.hpp"
      "${CMAKE_CURRENT_LIST_DIR}/include/opencv2/${name}/*.hpp"

highgui/src/highgui.cpp

@@ -54,6 +54,9 @@
 #if CV_WITH_RPI
 #include "jpeg_encoder_v4l_rpi.h"
 #endif
+#if CV_WITH_CIX
+#include "jpeg_encoder_v4l_cix.h"
+#endif
 #if defined __linux__ && !__ANDROID__
 #include "display_fb.h"
 #endif
@@ -454,6 +457,56 @@ bool imwrite(const String& filename, InputArray _img, const std::vector<int>& pa
                     }
                 }
             }
+            // fallback to stb_image_write
+        }
+#endif
+#if CV_WITH_CIX
+        if (jpeg_encoder_v4l_cix::supported(img.cols, img.rows, c))
+        {
+            // anything to bgr
+            if (!img.isContinuous())
+            {
+                img = img.clone();
+            }
+
+            int quality = 95;
+            for (size_t i = 0; i < params.size(); i += 2)
+            {
+                if (params[i] == IMWRITE_JPEG_QUALITY)
+                {
+                    quality = params[i + 1];
+                    break;
+                }
+            }
+
+            // cache jpeg_encoder_v4l_cix context
+            static int old_w = 0;
+            static int old_h = 0;
+            static int old_ch = 0;
+            static int old_quality = 0;
+            static jpeg_encoder_v4l_cix e;
+            if (img.cols == old_w && img.rows == old_h && c == old_ch && quality == old_quality)
+            {
+                int ret = e.encode(img.data, filename.c_str());
+                if (ret == 0)
+                    return true;
+            }
+            else
+            {
+                int ret = e.init(img.cols, img.rows, c, quality);
+                if (ret == 0)
+                {
+                    ret = e.encode(img.data, filename.c_str());
+                    if (ret == 0)
+                    {
+                        old_w = img.cols;
+                        old_h = img.rows;
+                        old_ch = c;
+                        old_quality = quality;
+                        return true;
+                    }
+                }
+            }
 
             // fallback to stb_image_write
         }
@@ -808,6 +861,39 @@ bool imencode(const String& ext, InputArray _img, std::vector<uchar>& buf, const
                     return true;
                 }
             }
+            // fallback to stb_image_write
+        }
+#endif
+#if CV_WITH_CIX
+        if (jpeg_encoder_v4l_cix::supported(img.cols, img.rows, c))
+        {
+            // anything to bgr
+            if (!img.isContinuous())
+            {
+                img = img.clone();
+            }
+
+            int quality = 95;
+            for (size_t i = 0; i < params.size(); i += 2)
+            {
+                if (params[i] == IMWRITE_JPEG_QUALITY)
+                {
+                    quality = params[i + 1];
+                    break;
+                }
+            }
+
+            jpeg_encoder_v4l_cix e;
+            int ret = e.init(img.cols, img.rows, c, quality);
+            if (ret == 0)
+            {
+                ret = e.encode(img.data, buf);
+                if (ret == 0)
+                {
+                    e.deinit();
+                    return true;
+                }
+            }
 
             // fallback to stb_image_write
         }