0028977: FFmpeg libraries are not presented in the CMake configuration

Corrected search of FFmpeg libraries.

diff --git a/adm/cmake/ffmpeg.cmake b/adm/cmake/ffmpeg.cmake
index 47deaec6fac8f2af26c17077617c5132296e6aa1..8c5bfb5c25396deee11202372ae81997b8cd972f 100644 (file)
--- a/adm/cmake/ffmpeg.cmake
+++ b/adm/cmake/ffmpeg.cmake
@@ -8,7 +8,7 @@ if (NOT DEFINED 3RDPARTY_FFMPEG_DIR)
   set (3RDPARTY_FFMPEG_DIR "" CACHE PATH "The directory containing FFmpeg")
 endif()
 
-# include occt macros. compiler_bitness, os_wiht_bit, compiler
+# include occt macros. compiler_bitness, os_with_bit, compiler
 OCCT_INCLUDE_CMAKE_FILE ("adm/cmake/occt_macros")
 
 # specify FFMPEG folder in connection with 3RDPARTY_DIR
@@ -27,49 +27,52 @@ if (NOT DEFINED 3RDPARTY_FFMPEG_INCLUDE_DIR)
   set (3RDPARTY_FFMPEG_INCLUDE_DIR  "" CACHE PATH "the path of headers directory")
 endif()
 
-if (NOT DEFINED 3RDPARTY_FFMPEG_LIBRARY OR NOT 3RDPARTY_FFMPEG_LIBRARY_DIR OR NOT EXISTS "${3RDPARTY_FFMPEG_LIBRARY_DIR}")
-  set (3RDPARTY_FFMPEG_LIBRARY               "" CACHE FILEPATH "FFmpeg framework" FORCE)
-endif()
-
-if (NOT DEFINED 3RDPARTY_FFMPEG_LIBRARY_DIR)
-  set (3RDPARTY_FFMPEG_LIBRARY_DIR           "" CACHE PATH "The directory containing FFmpeg framework")
-endif()
-
-if (WIN32)
-  if (NOT DEFINED 3RDPARTY_FFMPEG_DLL OR NOT 3RDPARTY_FFMPEG_DLL_DIR OR NOT EXISTS "${3RDPARTY_FFMPEG_DLL_DIR}")
-    set (3RDPARTY_FFMPEG_DLL                 "" CACHE FILEPATH "FFmpeg shared libraries" FORCE)
+separate_arguments (CSF_FFmpeg)
+foreach (LIBRARY_NAME ${CSF_FFmpeg})
+  if (NOT DEFINED 3RDPARTY_FFMPEG_LIBRARY_${LIBRARY_NAME} OR NOT 3RDPARTY_FFMPEG_LIBRARY_DIR_${LIBRARY_NAME} OR NOT EXISTS "${3RDPARTY_FFMPEG_LIBRARY_DIR_${LIBRARY_NAME}}")
+    set (3RDPARTY_FFMPEG_LIBRARY_${LIBRARY_NAME}               "" CACHE FILEPATH "FFmpeg framework (${LIBRARY_NAME})" FORCE)
   endif()
-endif()
 
-if (WIN32)
-  if (NOT DEFINED 3RDPARTY_FFMPEG_DLL_DIR)
-    set (3RDPARTY_FFMPEG_DLL_DIR               "" CACHE PATH "The directory containing FFmpeg shared libraries")
+  if (NOT DEFINED 3RDPARTY_FFMPEG_LIBRARY_DIR_${LIBRARY_NAME})
+    set (3RDPARTY_FFMPEG_LIBRARY_DIR_${LIBRARY_NAME}           "" CACHE PATH "The directory containing FFmpeg framework (${LIBRARY_NAME})")
   endif()
-endif()
 
-# check 3RDPARTY_${PRODUCT_NAME}_ paths for consistency with specified 3RDPARTY_${PRODUCT_NAME}_DIR
-if (3RDPARTY_FFMPEG_DIR AND EXISTS "${3RDPARTY_FFMPEG_DIR}")
-  CHECK_PATH_FOR_CONSISTENCY (3RDPARTY_FFMPEG_DIR 3RDPARTY_FFMPEG_INCLUDE_DIR PATH "the path to FFmpeg")
-  CHECK_PATH_FOR_CONSISTENCY (3RDPARTY_FFMPEG_DIR 3RDPARTY_FFMPEG_LIBRARY FILEPATH "the path to FFmpeg framework")
-
-  if (3RDPARTY_FFMPEG_LIBRARY AND EXISTS "${3RDPARTY_FFMPEG_LIBRARY}")
-    get_filename_component (3RDPARTY_FFMPEG_LIBRARY_DIR "${3RDPARTY_FFMPEG_LIBRARY}" PATH)
-    set (3RDPARTY_FFMPEG_LIBRARY_DIR "${3RDPARTY_FFMPEG_LIBRARY_DIR}" CACHE PATH "The directory containing FFmpeg libraries" FORCE)
-  else()
-    CHECK_PATH_FOR_CONSISTENCY (3RDPARTY_FFMPEG_DIR 3RDPARTY_FFMPEG_LIBRARY_DIR PATH "The directory containing FFmpeg libraries")
+  if (WIN32)
+    if (NOT DEFINED 3RDPARTY_FFMPEG_DLL_${LIBRARY_NAME} OR NOT 3RDPARTY_FFMPEG_DLL_DIR_${LIBRARY_NAME} OR NOT EXISTS "${3RDPARTY_FFMPEG_DLL_DIR_${LIBRARY_NAME}}")
+      set (3RDPARTY_FFMPEG_DLL_${LIBRARY_NAME}                 "" CACHE FILEPATH "FFmpeg shared libraries (${LIBRARY_NAME})" FORCE)
+    endif()
   endif()
 
   if (WIN32)
-    CHECK_PATH_FOR_CONSISTENCY (3RDPARTY_FFMPEG_DIR 3RDPARTY_FFMPEG_DLL FILEPATH "the path to FFmpeg shared libraries")
+    if (NOT DEFINED 3RDPARTY_FFMPEG_DLL_DIR_${LIBRARY_NAME})
+      set (3RDPARTY_FFMPEG_DLL_DIR_${LIBRARY_NAME}               "" CACHE PATH "The directory containing FFmpeg shared libraries (${LIBRARY_NAME})")
+    endif()
+  endif()
 
-    if (3RDPARTY_FFMPEG_DLL AND EXISTS "${3RDPARTY_FFMPEG_DLL}")
-      get_filename_component (3RDPARTY_FFMPEG_DLL_DIR "${3RDPARTY_FFMPEG_DLL}" PATH)
-      set (3RDPARTY_FFMPEG_DLL_DIR "${3RDPARTY_FFMPEG_DLL_DIR}" CACHE PATH "The directory containing FFmpeg shared libraries" FORCE)
+  # check 3RDPARTY_${PRODUCT_NAME}_ paths for consistency with specified 3RDPARTY_${PRODUCT_NAME}_DIR
+  if (3RDPARTY_FFMPEG_DIR AND EXISTS "${3RDPARTY_FFMPEG_DIR}")
+    CHECK_PATH_FOR_CONSISTENCY (3RDPARTY_FFMPEG_DIR 3RDPARTY_FFMPEG_INCLUDE_DIR PATH "the path to FFmpeg")
+    CHECK_PATH_FOR_CONSISTENCY (3RDPARTY_FFMPEG_DIR 3RDPARTY_FFMPEG_LIBRARY_${LIBRARY_NAME} FILEPATH "the path to FFmpeg framework (${LIBRARY_NAME})")
+
+    if (3RDPARTY_FFMPEG_LIBRARY_${LIBRARY_NAME} AND EXISTS "${3RDPARTY_FFMPEG_LIBRARY_${LIBRARY_NAME}}")
+      get_filename_component (3RDPARTY_FFMPEG_LIBRARY_DIR_${LIBRARY_NAME} "${3RDPARTY_FFMPEG_LIBRARY_${LIBRARY_NAME}}" PATH)
+      set (3RDPARTY_FFMPEG_LIBRARY_DIR_${LIBRARY_NAME} "${3RDPARTY_FFMPEG_LIBRARY_DIR_${LIBRARY_NAME}}" CACHE PATH "The directory containing FFmpeg library (${LIBRARY_NAME})" FORCE)
     else()
-      CHECK_PATH_FOR_CONSISTENCY (3RDPARTY_FFMPEG_DIR 3RDPARTY_FFMPEG_DLL_DIR PATH "The directory containing FFmpeg shared libraries")
+      CHECK_PATH_FOR_CONSISTENCY (3RDPARTY_FFMPEG_DIR 3RDPARTY_FFMPEG_LIBRARY_DIR_${LIBRARY_NAME} PATH "The directory containing FFmpeg library (${LIBRARY_NAME})")
+    endif()
+
+    if (WIN32)
+      CHECK_PATH_FOR_CONSISTENCY (3RDPARTY_FFMPEG_DIR 3RDPARTY_FFMPEG_DLL_${LIBRARY_NAME} FILEPATH "the path to FFmpeg shared library (${LIBRARY_NAME})")
+
+      if (3RDPARTY_FFMPEG_DLL_${LIBRARY_NAME} AND EXISTS "${3RDPARTY_FFMPEG_DLL_${LIBRARY_NAME}}")
+        get_filename_component (3RDPARTY_FFMPEG_DLL_DIR_${LIBRARY_NAME} "${3RDPARTY_FFMPEG_DLL_${LIBRARY_NAME}}" PATH)
+        set (3RDPARTY_FFMPEG_DLL_DIR_${LIBRARY_NAME} "${3RDPARTY_FFMPEG_DLL_DIR_${LIBRARY_NAME}}" CACHE PATH "The directory containing FFmpeg shared library (${LIBRARY_NAME})" FORCE)
+      else()
+        CHECK_PATH_FOR_CONSISTENCY (3RDPARTY_FFMPEG_DIR 3RDPARTY_FFMPEG_DLL_DIR_${LIBRARY_NAME} PATH "The directory containing FFmpeg shared library (${LIBRARY_NAME})")
+      endif()
     endif()
   endif()
-endif()
+endforeach()
 
 # header
 if (NOT 3RDPARTY_FFMPEG_INCLUDE_DIR OR NOT EXISTS "${3RDPARTY_FFMPEG_INCLUDE_DIR}")
@@ -99,130 +102,132 @@ else()
   set (3RDPARTY_FFMPEG_INCLUDE_DIR "" CACHE FILEPATH "the path to avutil.h" FORCE)
 endif()
 
-# library
-if (NOT 3RDPARTY_FFMPEG_LIBRARY OR NOT EXISTS "${3RDPARTY_FFMPEG_LIBRARY}")
-  set (CMAKE_FIND_LIBRARY_SUFFIXES .lib .so .dylib .a)
+# libraries
+foreach (LIBRARY_NAME ${CSF_FFmpeg})
+  if (NOT 3RDPARTY_FFMPEG_LIBRARY_${LIBRARY_NAME} OR NOT EXISTS "${3RDPARTY_FFMPEG_LIBRARY_${LIBRARY_NAME}}")
+    set (CMAKE_FIND_LIBRARY_SUFFIXES .lib .so .dylib .a)
 
-  set (FFMPEG_PATH_SUFFIXES lib)
-  if (ANDROID)
-    set (FFMPEG_PATH_SUFFIXES ${FFMPEG_PATH_SUFFIXES} libs/${ANDROID_ABI})
-  elseif(APPLE)
-    set (FFMPEG_PATH_SUFFIXES ${FFMPEG_PATH_SUFFIXES} Frameworks)
-  endif()
+    set (FFMPEG_PATH_SUFFIXES lib)
+    if (ANDROID)
+      set (FFMPEG_PATH_SUFFIXES ${FFMPEG_PATH_SUFFIXES} libs/${ANDROID_ABI})
+    elseif(APPLE)
+      set (FFMPEG_PATH_SUFFIXES ${FFMPEG_PATH_SUFFIXES} Frameworks)
+    endif()
 
-  # set 3RDPARTY_FFMPEG_LIBRARY as notfound, otherwise find_library can't assign a new value to 3RDPARTY_FFMPEG_LIBRARY
-  set (3RDPARTY_FFMPEG_LIBRARY "3RDPARTY_FFMPEG_LIBRARY-NOTFOUND" CACHE FILEPATH "The path to FFmpeg library" FORCE)
+    # set 3RDPARTY_FFMPEG_LIBRARY as notfound, otherwise find_library can't assign a new value to 3RDPARTY_FFMPEG_LIBRARY
+    set (3RDPARTY_FFMPEG_LIBRARY_${LIBRARY_NAME} "3RDPARTY_FFMPEG_LIBRARY_${LIBRARY_NAME}-NOTFOUND" CACHE FILEPATH "The path to FFmpeg library (${LIBRARY_NAME})" FORCE)
 
-  if (3RDPARTY_FFMPEG_DIR AND EXISTS "${3RDPARTY_FFMPEG_DIR}")
-    find_library (3RDPARTY_FFMPEG_LIBRARY NAMES avutil
-                  PATHS "${3RDPARTY_FFMPEG_LIBRARY_DIR}" "${3RDPARTY_FFMPEG_DIR}"
-                  PATH_SUFFIXES ${FFMPEG_PATH_SUFFIXES}
-                  CMAKE_FIND_ROOT_PATH_BOTH
-                  NO_DEFAULT_PATH)
-  else()
-    find_library (3RDPARTY_FFMPEG_LIBRARY NAMES avutil
-                  PATH_SUFFIXES ${FFMPEG_PATH_SUFFIXES}
-                  CMAKE_FIND_ROOT_PATH_BOTH)
+    if (3RDPARTY_FFMPEG_DIR AND EXISTS "${3RDPARTY_FFMPEG_DIR}")
+      find_library (3RDPARTY_FFMPEG_LIBRARY_${LIBRARY_NAME} NAMES ${LIBRARY_NAME}
+                    PATHS "${3RDPARTY_FFMPEG_LIBRARY_DIR_${LIBRARY_NAME}}" "${3RDPARTY_FFMPEG_DIR}"
+                    PATH_SUFFIXES ${FFMPEG_PATH_SUFFIXES}
+                    CMAKE_FIND_ROOT_PATH_BOTH
+                    NO_DEFAULT_PATH)
+    else()
+      find_library (3RDPARTY_FFMPEG_LIBRARY_${LIBRARY_NAME} NAMES ${LIBRARY_NAME}
+                    PATH_SUFFIXES ${FFMPEG_PATH_SUFFIXES}
+                    CMAKE_FIND_ROOT_PATH_BOTH)
+    endif()
+
+    if (3RDPARTY_FFMPEG_LIBRARY_${LIBRARY_NAME} AND EXISTS "${3RDPARTY_FFMPEG_LIBRARY_${LIBRARY_NAME}}")
+      get_filename_component (3RDPARTY_FFMPEG_LIBRARY_DIR_${LIBRARY_NAME} "${3RDPARTY_FFMPEG_LIBRARY_${LIBRARY_NAME}}" PATH)
+      set (3RDPARTY_FFMPEG_LIBRARY_DIR_${LIBRARY_NAME} "${3RDPARTY_FFMPEG_LIBRARY_DIR_${LIBRARY_NAME}}" CACHE PATH "The directory containing FFmpeg library (${LIBRARY_NAME})" FORCE)
+    else()
+      set (3RDPARTY_FFMPEG_LIBRARY_DIR_${LIBRARY_NAME} "" CACHE PATH "The directory containing FFmpeg library (${LIBRARY_NAME})" FORCE)
+    endif()
   endif()
 
-  if (3RDPARTY_FFMPEG_LIBRARY AND EXISTS "${3RDPARTY_FFMPEG_LIBRARY}")
-    get_filename_component (3RDPARTY_FFMPEG_LIBRARY_DIR "${3RDPARTY_FFMPEG_LIBRARY}" PATH)
-    set (3RDPARTY_FFMPEG_LIBRARY_DIR "${3RDPARTY_FFMPEG_LIBRARY_DIR}" CACHE PATH "The directory containing FFmpeg library" FORCE)
+  if (3RDPARTY_FFMPEG_LIBRARY_DIR_${LIBRARY_NAME} AND EXISTS "${3RDPARTY_FFMPEG_LIBRARY_DIR_${LIBRARY_NAME}}")
+    list (APPEND 3RDPARTY_LIBRARY_DIRS "${3RDPARTY_FFMPEG_LIBRARY_DIR_${LIBRARY_NAME}}")
   else()
-    set (3RDPARTY_FFMPEG_LIBRARY_DIR "" CACHE PATH "The directory containing FFmpeg library" FORCE)
-  endif()
-endif()
+    list (APPEND 3RDPARTY_NOT_INCLUDED 3RDPARTY_FFMPEG_LIBRARY_DIR_${LIBRARY_NAME})
 
-if (3RDPARTY_FFMPEG_LIBRARY_DIR AND EXISTS "${3RDPARTY_FFMPEG_LIBRARY_DIR}")
-  list (APPEND 3RDPARTY_LIBRARY_DIRS "${3RDPARTY_FFMPEG_LIBRARY_DIR}")
-else()
-  list (APPEND 3RDPARTY_NOT_INCLUDED 3RDPARTY_FFMPEG_LIBRARY_DIR)
+    set (3RDPARTY_FFMPEG_LIBRARY_${LIBRARY_NAME} "" CACHE FILEPATH "The path to FFmpeg library (${LIBRARY_NAME})" FORCE)
+  endif()
 
-  set (3RDPARTY_FFMPEG_LIBRARY "" CACHE FILEPATH "The path to FFmpeg library" FORCE)
-endif()
+  # shared library
+  if (WIN32)
+    if (NOT 3RDPARTY_FFMPEG_DLL_${LIBRARY_NAME} OR NOT EXISTS "${3RDPARTY_FFMPEG_DLL_${LIBRARY_NAME}}")
 
-# shared library
-if (WIN32)
-  if (NOT 3RDPARTY_FFMPEG_DLL OR NOT EXISTS "${3RDPARTY_FFMPEG_DLL}")
+      set (CMAKE_FIND_LIBRARY_SUFFIXES .dll)
+      set (3RDPARTY_FFMPEG_DLL_${LIBRARY_NAME} "3RDPARTY_FFMPEG_DLL_${LIBRARY_NAME}-NOTFOUND" CACHE FILEPATH "The path to FFmpeg shared library (${LIBRARY_NAME})" FORCE)
 
-    set (CMAKE_FIND_LIBRARY_SUFFIXES .dll)
-    set (3RDPARTY_FFMPEG_DLL "3RDPARTY_FFMPEG_DLL-NOTFOUND" CACHE FILEPATH "The path to FFmpeg shared library" FORCE)
+      # find FFmpeg shared library
+      file (GLOB 3RDPARTY_FFMPEG_DLL_${LIBRARY_NAME} "${3RDPARTY_FFMPEG_DIR}/bin/${LIBRARY_NAME}[-][0-9]*")
 
-    # find FFmpeg shared library
-    file (GLOB 3RDPARTY_FFMPEG_DLL "${3RDPARTY_FFMPEG_DIR}/bin/avutil[-][0-9]*")
+      if (3RDPARTY_FFMPEG_DLL_${LIBRARY_NAME} AND EXISTS "${3RDPARTY_FFMPEG_DLL_${LIBRARY_NAME}}")
+        set (3RDPARTY_FFMPEG_DLL_${LIBRARY_NAME} "${3RDPARTY_FFMPEG_DLL_${LIBRARY_NAME}}" CACHE FILEPATH "FFmpeg shared library (${LIBRARY_NAME})" FORCE)
+        get_filename_component (3RDPARTY_FFMPEG_DLL_DIR_${LIBRARY_NAME} "${3RDPARTY_FFMPEG_DLL_${LIBRARY_NAME}}" PATH)
+        set (3RDPARTY_FFMPEG_DLL_DIR_${LIBRARY_NAME} "${3RDPARTY_FFMPEG_DLL_DIR_${LIBRARY_NAME}}" CACHE PATH "The directory containing FFmpeg library (${LIBRARY_NAME})" FORCE)
+      else()
+        set (3RDPARTY_FFMPEG_DLL_DIR_${LIBRARY_NAME} "" CACHE PATH "The directory containing FFmpeg shared library (${LIBRARY_NAME})" FORCE)
+      endif()
+    endif()
 
-    if (3RDPARTY_FFMPEG_DLL AND EXISTS "${3RDPARTY_FFMPEG_DLL}")
-      set (3RDPARTY_FFMPEG_DLL "${3RDPARTY_FFMPEG_DLL}" CACHE FILEPATH "FFmpeg shared library" FORCE)
-      get_filename_component (3RDPARTY_FFMPEG_DLL_DIR "${3RDPARTY_FFMPEG_DLL}" PATH)
-      set (3RDPARTY_FFMPEG_DLL_DIR "${3RDPARTY_FFMPEG_DLL_DIR}" CACHE PATH "The directory containing FFmpeg library" FORCE)
+    if (3RDPARTY_FFMPEG_DLL_DIR_${LIBRARY_NAME} OR EXISTS "${3RDPARTY_FFMPEG_DLL_DIR_${LIBRARY_NAME}}")
+      list (APPEND 3RDPARTY_DLL_DIRS "${3RDPARTY_FFMPEG_DLL_DIR_${LIBRARY_NAME}}")
     else()
-      set (3RDPARTY_FFMPEG_DLL_DIR "" CACHE PATH "The directory containing FFmpeg shared library" FORCE)
+      list (APPEND 3RDPARTY_NOT_INCLUDED 3RDPARTY_FFMPEG_DLL_DIR_${LIBRARY_NAME})
     endif()
   endif()
 
-  if (3RDPARTY_FFMPEG_DLL_DIR OR EXISTS "${3RDPARTY_FFMPEG_DLL_DIR}")
-    list (APPEND 3RDPARTY_DLL_DIRS "${3RDPARTY_FFMPEG_DLL_DIR}")
-  else()
-    list (APPEND 3RDPARTY_NOT_INCLUDED 3RDPARTY_FFMPEG_DLL_DIR)
-  endif()
-endif()
-
-# install instructions
-if (INSTALL_FFMPEG)
-  OCCT_MAKE_OS_WITH_BITNESS()
-  OCCT_MAKE_COMPILER_SHORT_NAME()
-
-  if (WIN32)
-    if (DEFINED INSTALL_BIN_DIR)
-      install (FILES "${3RDPARTY_FFMPEG_DLL}" DESTINATION "${INSTALL_BIN_DIR}")
+  # install instructions
+  if (INSTALL_FFMPEG)
+    OCCT_MAKE_OS_WITH_BITNESS()
+    OCCT_MAKE_COMPILER_SHORT_NAME()
+
+    if (WIN32)
+      if (DEFINED INSTALL_BIN_DIR)
+        install (FILES "${3RDPARTY_FFMPEG_DLL_${LIBRARY_NAME}}" DESTINATION "${INSTALL_BIN_DIR}")
+      else()
+        install (FILES "${3RDPARTY_FFMPEG_DLL_${LIBRARY_NAME}}"
+                 CONFIGURATIONS Release
+                 DESTINATION "${INSTALL_DIR}/${OS_WITH_BIT}/${COMPILER}/bin")
+        install (FILES "${3RDPARTY_FFMPEG_DLL_${LIBRARY_NAME}}"
+                 CONFIGURATIONS RelWithDebInfo
+                 DESTINATION "${INSTALL_DIR}/${OS_WITH_BIT}/${COMPILER}/bini")
+        install (FILES "${3RDPARTY_FFMPEG_DLL_${LIBRARY_NAME}}"
+                 CONFIGURATIONS Debug
+                 DESTINATION "${INSTALL_DIR}/${OS_WITH_BIT}/${COMPILER}/bind")
+      endif()
     else()
-      install (FILES "${3RDPARTY_FFMPEG_DLL}"
-               CONFIGURATIONS Release
-               DESTINATION "${INSTALL_DIR}/${OS_WITH_BIT}/${COMPILER}/bin")
-      install (FILES "${3RDPARTY_FFMPEG_DLL}"
-               CONFIGURATIONS RelWithDebInfo
-               DESTINATION "${INSTALL_DIR}/${OS_WITH_BIT}/${COMPILER}/bini")
-      install (FILES "${3RDPARTY_FFMPEG_DLL}"
-               CONFIGURATIONS Debug
-               DESTINATION "${INSTALL_DIR}/${OS_WITH_BIT}/${COMPILER}/bind")
+      get_filename_component(3RDPARTY_FFMPEG_LIBRARY_ABS ${3RDPARTY_FFMPEG_LIBRARY_${LIBRARY_NAME}} REALPATH)
+      get_filename_component(3RDPARTY_FFMPEG_LIBRARY_NAME ${3RDPARTY_FFMPEG_LIBRARY_${LIBRARY_NAME}} NAME)
+
+      if (DEFINED INSTALL_LIB_DIR)
+        install (FILES "${3RDPARTY_FFMPEG_LIBRARY_ABS}"
+                 DESTINATION "${INSTALL_LIB_DIR}"
+                 RENAME ${3RDPARTY_FFMPEG_LIBRARY_NAME}.6)
+      else()
+        install (FILES "${3RDPARTY_FFMPEG_LIBRARY_ABS}"
+                 CONFIGURATIONS Release
+                 DESTINATION "${INSTALL_DIR}/${OS_WITH_BIT}/${COMPILER}/lib"
+                 RENAME ${3RDPARTY_FFMPEG_LIBRARY_NAME}.6)
+        install (FILES "${3RDPARTY_FFMPEG_LIBRARY_ABS}"
+                 CONFIGURATIONS RelWithDebInfo
+                 DESTINATION "${INSTALL_DIR}/${OS_WITH_BIT}/${COMPILER}/libi"
+                 RENAME ${3RDPARTY_FFMPEG_LIBRARY_NAME}.6)
+        install (FILES "${3RDPARTY_FFMPEG_LIBRARY_ABS}"
+                 CONFIGURATIONS Debug
+                 DESTINATION "${INSTALL_DIR}/${OS_WITH_BIT}/${COMPILER}/libd"
+                 RENAME ${3RDPARTY_FFMPEG_LIBRARY_NAME}.6)
+      endif()
     endif()
-  else()
-    get_filename_component(3RDPARTY_FFMPEG_LIBRARY_ABS ${3RDPARTY_FFMPEG_LIBRARY} REALPATH)
-    get_filename_component(3RDPARTY_FFMPEG_LIBRARY_NAME ${3RDPARTY_FFMPEG_LIBRARY} NAME)
 
-    if (DEFINED INSTALL_LIB_DIR)
-      install (FILES "${3RDPARTY_FFMPEG_LIBRARY_ABS}"
-               DESTINATION "${INSTALL_LIB_DIR}"
-               RENAME ${3RDPARTY_FFMPEG_LIBRARY_NAME}.6)
+    set (USED_3RDPARTY_FFMPEG_DIR "")
+  else()
+    # the library directory for using by the executable
+    if (WIN32)
+      set (USED_3RDPARTY_FFMPEG_DIR ${3RDPARTY_FFMPEG_DLL_DIR_${LIBRARY_NAME}})
     else()
-      install (FILES "${3RDPARTY_FFMPEG_LIBRARY_ABS}"
-               CONFIGURATIONS Release
-               DESTINATION "${INSTALL_DIR}/${OS_WITH_BIT}/${COMPILER}/lib"
-               RENAME ${3RDPARTY_FFMPEG_LIBRARY_NAME}.6)
-      install (FILES "${3RDPARTY_FFMPEG_LIBRARY_ABS}"
-               CONFIGURATIONS RelWithDebInfo
-               DESTINATION "${INSTALL_DIR}/${OS_WITH_BIT}/${COMPILER}/libi"
-               RENAME ${3RDPARTY_FFMPEG_LIBRARY_NAME}.6)
-      install (FILES "${3RDPARTY_FFMPEG_LIBRARY_ABS}"
-               CONFIGURATIONS Debug
-               DESTINATION "${INSTALL_DIR}/${OS_WITH_BIT}/${COMPILER}/libd"
-               RENAME ${3RDPARTY_FFMPEG_LIBRARY_NAME}.6)
+      set (USED_3RDPARTY_FFMPEG_DIR ${3RDPARTY_FFMPEG_LIBRARY_DIR_${LIBRARY_NAME}})
     endif()
   endif()
 
-  set (USED_3RDPARTY_FFMPEG_DIR "")
-else()
-  # the library directory for using by the executable
-  if (WIN32)
-    set (USED_3RDPARTY_FFMPEG_DIR ${3RDPARTY_FFMPEG_DLL_DIR})
-  else()
-    set (USED_3RDPARTY_FFMPEG_DIR ${3RDPARTY_FFMPEG_LIBRARY_DIR})
-  endif()
-endif()
+  mark_as_advanced (3RDPARTY_FFMPEG_LIBRARY_${LIBRARY_NAME} 3RDPARTY_FFMPEG_DLL_${LIBRARY_NAME})
+endforeach()
 
 # unset all redundant variables
 OCCT_CHECK_AND_UNSET (FFMPEG_INCLUDE_DIRS)
 OCCT_CHECK_AND_UNSET (FFMPEG_LIBRARY_DIRS)
 OCCT_CHECK_AND_UNSET (FFMPEG_DIR)
-
-mark_as_advanced (3RDPARTY_FFMPEG_LIBRARY 3RDPARTY_FFMPEG_DLL)