add avdict

cmake/FindAVUTIL.cmake

@@ -0,0 +1,29 @@
+find_package(PkgConfig)
+if (PkgConfig_FOUND)
+    pkg_check_modules(PC_AVUTIL QUIET IMPORTED_TARGET GLOBAL libavutil)
+endif()
+
+if (PC_AVUTIL_FOUND)
+    set(AVUTIL_FOUND TRUE)
+    set(AVUTIL_VERSION ${PC_AVUTIL_VERSION})
+    set(AVUTIL_VERSION_STRING ${PC_AVUTIL_STRING})
+    set(AVUTIL_LIBRARYS ${PC_AVUTIL_LIBRARIES})
+    if (USE_STATIC_LIBS)
+        set(AVUTIL_INCLUDE_DIRS ${PC_AVUTIL_STATIC_INCLUDE_DIRS})
+    else()
+        set(AVUTIL_INCLUDE_DIRS ${PC_AVUTIL_INCLUDE_DIRS})
+    endif()
+    if (NOT TARGET AVUTIL::AVUTIL)
+        add_library(AVUTIL::AVUTIL ALIAS PkgConfig::PC_AVUTIL)
+    endif()
+else()
+    message(FATAL_ERROR "failed to find libavutil.")
+endif()
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(AVUTIL
+    FOUND_VAR AVUTIL_FOUND
+    REQUIRED_VARS
+        AVUTIL_LIBRARYS
+    VERSION_VAR AVUTIL_VERSION
+)

cmake/FindExiv2.cmake

@@ -0,0 +1,34 @@
+find_path(Exiv2_INCLUDE_DIR
+    NAMES exiv2/exiv2.hpp
+)
+find_library(Exiv2_LIBRARY
+    NAMES exiv2
+)
+if (Exiv2_INCLUDE_DIR)
+    if (EXISTS "${Exiv2_INCLUDE_DIR}/exiv2/exv_conf.h")
+        file(STRINGS "${Exiv2_INCLUDE_DIR}/exiv2/exv_conf.h" EXV_CONF_H)
+        foreach(LINE IN LISTS EXV_CONF_H)
+            string(REGEX MATCH "^#define EXV_PACKAGE_VERSION \"([^\"]+)\"" OUTPUT "${LINE}")
+            if (OUTPUT)
+                set(EXIV2_VERSION "${CMAKE_MATCH_1}")
+            endif()
+        endforeach()
+    endif()
+endif()
+
+if (Exiv2_INCLUDE_DIR AND Exiv2_LIBRARY)
+    set(Exiv2_FOUND TRUE)
+endif()
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(Exiv2
+    FOUND_VAR Exiv2_FOUND
+    REQUIRED_VARS
+        Exiv2_LIBRARY
+        Exiv2_INCLUDE_DIR
+    VERSION_VAR
+        EXIV2_VERSION
+)
+
+set(Exiv2_INCLUDE_DIRS "${Exiv2_INCLUDE_DIR}")
+set(Exiv2_LIBRARIES "${Exiv2_LIBRARY}")

cmake/GetLinkLibraries.cmake

@@ -0,0 +1,31 @@
+function(get_link_libraries OUTPUT_LIST TARGET)
+    get_target_property(IMPORTED ${TARGET} IMPORTED)
+    list(APPEND VISITED_TARGETS ${TARGET})
+    if (IMPORTED)
+        get_target_property(LIBS ${TARGET} INTERFACE_LINK_LIBRARIES)
+    else()
+        get_target_property(LIBS ${TARGET} LINK_LIBRARIES)
+    endif()
+    set(LIB_FILES "")
+    foreach(LIB ${LIBS})
+        if (TARGET ${LIB})
+            list(FIND VISITED_TARGETS ${LIB} VISITED)
+            if (${VISITED} EQUAL -1)
+                get_target_property(LIB_FILE ${LIB} LOCATION)
+                if (NOT LIB_FILE)
+                    get_target_property(LIB_FILE ${LIB} IMPORTED_LOCATION)
+                endif()
+                if (NOT LIB_FILE)
+                    get_target_property(LIB_FILE ${LIB} IMPORTED_IMPLIB)
+                endif()
+                if (NOT LIB_FILE)
+                    get_target_property(LIB_FILE ${LIB} INTERFACE_LINK_LIBRARIES)
+                endif()
+                get_link_libraries(LINK_LIB_FILES ${LIB})
+                list(APPEND LIB_FILES ${LIB_FILE} ${LINK_LIB_FILES})
+            endif()
+        endif()
+    endforeach()
+    set(VISITED_TARGETS ${VISITED_TARGETS} PARENT_SCOPE)
+    set(${OUTPUT_LIST} ${LIB_FILES} PARENT_SCOPE)
+endfunction()