当用pkg-config找avcodec与avutil时，应该就AVCODEC_INCLUDE_DIRS,AVUTIL_INCLUDE_DIRS

当用pkg-config找avcodec与avutil时，应该就AVCODEC_INCLUDE_DIRS,AVUTIL_INCLUDE_DIRS而不是AVCODEC_INCLUDE_DIR,AVUTIL_INCLUDE_DIR

tests/CMakeLists.txt

@@ -14,7 +14,7 @@ find_package(PkgConfig QUIET)
 if(PKG_CONFIG_FOUND)
     pkg_check_modules(AVUTIL QUIET IMPORTED_TARGET libavutil)
     if(AVUTIL_FOUND)
-        include_directories(${AVUTIL_INCLUDE_DIR})
+        include_directories(${AVUTIL_INCLUDE_DIRS})
         link_directories(${AVUTIL_LIBRARY_DIRS})
         list(APPEND  LINK_LIB_LIST ${AVUTIL_LIBRARIES})
         message(STATUS "found library:${AVUTIL_LIBRARIES}")
@@ -32,7 +32,7 @@ endif()
 if(PKG_CONFIG_FOUND)
     pkg_check_modules(AVCODEC QUIET IMPORTED_TARGET libavcodec)
     if(AVCODEC_FOUND)
-        include_directories(${AVCODEC_INCLUDE_DIR})
+        include_directories(${AVCODEC_INCLUDE_DIRS})
         link_directories(${AVCODEC_LIBRARY_DIRS})
         list(APPEND  LINK_LIB_LIST ${AVCODEC_LIBRARIES})
         message(STATUS "found library:${AVCODEC_LIBRARIES}")