Fix warning as error in ffmpeg encoder decoder

Author: traversaro

patch/ros-humble-ffmpeg-encoder-decoder.patch

@@ -52,3 +52,23 @@ index da089e4..01e8eea 100644
        formats.push_back(*p);
      }
    }
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 7ba08db..b283bda 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -16,7 +16,13 @@
+ cmake_minimum_required(VERSION 3.16)
+ project(ffmpeg_encoder_decoder)
+ 
+-add_compile_options(-Wall -Wextra -Wpedantic -Werror)
++add_compile_options(-Wall -Wextra -Wpedantic)
++if(${CMAKE_VERSION} VERSION_GREATER_EQUAL "3.24.0")
++  option(CMAKE_COMPILE_WARNING_AS_ERROR "Treat compiler warnings as errors." ON)
++  mark_as_advanced(CMAKE_COMPILE_WARNING_AS_ERROR)
++else()
++  add_compile_options(-Werror)
++endif()
+ 
+ # find dependencies
+ find_package(ament_cmake REQUIRED)