+if(QJSON_FOUND)
+ add_subdirectory(rotoscoping)
+ add_subdirectory(onmonitoritems/rotoscoping)
+ include_directories(QJSON_INCLUDE_DIR)
+ set(optional_libs ${optional_libs} ${QJSON_LIBRARIES})
+ add_definitions(-DQJSON)
+else(QJSON_FOUND)
+ message(STATUS "Install QJson to use the rotoscoping filter")
+endif(QJSON_FOUND)
+
+if(NOT APPLE AND NOT CMAKE_SYSTEM_NAME STREQUAL "FreeBSD" AND NOT CMAKE_SYSTEM_NAME STREQUAL "GNU/kFreeBSD")
+ add_subdirectory(v4l)
+endif(NOT APPLE AND NOT CMAKE_SYSTEM_NAME STREQUAL "FreeBSD" AND NOT CMAKE_SYSTEM_NAME STREQUAL "GNU/kFreeBSD")