[WIP] Fetch low-level acoustic data from Essentia

CMakeLists.txt

@@ -17,6 +17,7 @@ find_package(Filesystem REQUIRED)
 find_package(GTest REQUIRED)
 find_package(Boost REQUIRED COMPONENTS system program_options)
 find_package(Wt REQUIRED COMPONENTS Wt Dbo DboSqlite3 HTTP)
+find_package(Essentia REQUIRED)
 pkg_check_modules(Taglib REQUIRED IMPORTED_TARGET taglib)
 pkg_check_modules(Config++ REQUIRED IMPORTED_TARGET libconfig++)
 pkg_check_modules(GraphicsMagick++ IMPORTED_TARGET GraphicsMagick++)

cmake/modules/FindEssentia.cmake

@@ -0,0 +1,17 @@
+find_package(Eigen3)
+
+find_path(ESSENTIA_INCLUDES essentia/essentia.h)
+find_library(ESSENTIA_LIB libessentia.so)
+
+add_library(essentia SHARED IMPORTED)
+target_link_libraries(essentia INTERFACE Eigen3::Eigen)
+target_include_directories(essentia INTERFACE ${ESSENTIA_INCLUDES})
+set_target_properties(essentia
+    PROPERTIES
+        IMPORTED_LOCATION ${ESSENTIA_LIB}
+        INTERFACE_INCLUDE_DIRECTORIES ${ESSENTIA_INCLUDES}
+    )
+
+find_package_handle_standard_args(Essentia
+    REQUIRED_VARS ESSENTIA_LIB ESSENTIA_INCLUDES
+    )

src/libs/services/scanner/CMakeLists.txt

@@ -23,6 +23,7 @@ target_link_libraries(lmsscanner PRIVATE
 target_link_libraries(lmsscanner PUBLIC
 	std::filesystem
 	Wt::Wt
+	essentia
 	)
 
 install(TARGETS lmsscanner DESTINATION lib)