Merge pull request opencv#19633 from mshabunin:add-gstreamer-video

Author: alalek

modules/videoio/cmake/detect_gstreamer.cmake

@@ -40,6 +40,10 @@ if(NOT HAVE_GSTREAMER AND WIN32)
     NAMES gstriff gstriff-1.0
     PATHS ${env_paths}
     PATH_SUFFIXES "lib")
+  find_library(GSTREAMER_video_LIBRARY
+    NAMES gstvideo gstvideo-1.0
+    PATHS ${env_paths}
+    PATH_SUFFIXES "lib")
 
   find_library(GSTREAMER_glib_LIBRARY
     NAMES glib-2.0
@@ -58,6 +62,7 @@ if(NOT HAVE_GSTREAMER AND WIN32)
       AND GSTREAMER_base_LIBRARY
       AND GSTREAMER_pbutils_LIBRARY
       AND GSTREAMER_riff_LIBRARY
+      AND GSTREAMER_video_LIBRARY
       AND GSTREAMER_glib_LIBRARY
       AND GSTREAMER_gobject_LIBRARY)
     file(STRINGS "${GSTREAMER_gst_INCLUDE_DIR}/gst/gstversion.h" ver_strings REGEX "#define +GST_VERSION_(MAJOR|MINOR|MICRO|NANO).*")
@@ -71,6 +76,7 @@ if(NOT HAVE_GSTREAMER AND WIN32)
       ${GSTREAMER_base_LIBRARY}
       ${GSTREAMER_app_LIBRARY}
       ${GSTREAMER_riff_LIBRARY}
+      ${GSTREAMER_video_LIBRARY}
       ${GSTREAMER_pbutils_LIBRARY}
       ${GSTREAMER_glib_LIBRARY}
       ${GSTREAMER_gobject_LIBRARY})
@@ -86,11 +92,12 @@ if(NOT HAVE_GSTREAMER AND PKG_CONFIG_FOUND)
   ocv_check_modules(GSTREAMER_app gstreamer-app-1.0)
   ocv_check_modules(GSTREAMER_riff gstreamer-riff-1.0)
   ocv_check_modules(GSTREAMER_pbutils gstreamer-pbutils-1.0)
-  if(GSTREAMER_base_FOUND AND GSTREAMER_app_FOUND AND GSTREAMER_riff_FOUND AND GSTREAMER_pbutils_FOUND)
+  ocv_check_modules(GSTREAMER_video gstreamer-video-1.0)
+  if(GSTREAMER_base_FOUND AND GSTREAMER_app_FOUND AND GSTREAMER_riff_FOUND AND GSTREAMER_pbutils_FOUND AND GSTREAMER_video_FOUND)
     set(HAVE_GSTREAMER TRUE)
     set(GSTREAMER_VERSION ${GSTREAMER_base_VERSION} PARENT_SCOPE) # informational
-    set(GSTREAMER_LIBRARIES ${GSTREAMER_base_LIBRARIES} ${GSTREAMER_app_LIBRARIES} ${GSTREAMER_riff_LIBRARIES} ${GSTREAMER_pbutils_LIBRARIES})
-    set(GSTREAMER_INCLUDE_DIRS ${GSTREAMER_base_INCLUDE_DIRS} ${GSTREAMER_app_INCLUDE_DIRS} ${GSTREAMER_riff_INCLUDE_DIRS} ${GSTREAMER_pbutils_INCLUDE_DIRS})
+    set(GSTREAMER_LIBRARIES ${GSTREAMER_base_LIBRARIES} ${GSTREAMER_app_LIBRARIES} ${GSTREAMER_riff_LIBRARIES} ${GSTREAMER_pbutils_LIBRARIES} ${GSTREAMER_video_LIBRARIES})
+    set(GSTREAMER_INCLUDE_DIRS ${GSTREAMER_base_INCLUDE_DIRS} ${GSTREAMER_app_INCLUDE_DIRS} ${GSTREAMER_riff_INCLUDE_DIRS} ${GSTREAMER_pbutils_INCLUDE_DIRS} ${GSTREAMER_video_INCLUDE_DIRS})
   endif()
 endif()