Samples: Video batch decode - FFMPEG Multiversion support (#402)

samples/videoDecodeBatch/CMakeLists.txt

@@ -90,6 +90,12 @@ if(HIP_FOUND AND FFMPEG_FOUND AND ROCDECODE_FOUND)
     add_executable(${PROJECT_NAME} ${SOURCES})
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=gnu++17")
     target_link_libraries(${PROJECT_NAME} ${LINK_LIBRARY_LIST})
+    # FFMPEG multi-version support
+    if(_FFMPEG_AVCODEC_VERSION VERSION_LESS_EQUAL 58.134.100)
+      target_compile_definitions(${PROJECT_NAME} PUBLIC USE_AVCODEC_GREATER_THAN_58_134=0)
+    else()
+      target_compile_definitions(${PROJECT_NAME} PUBLIC USE_AVCODEC_GREATER_THAN_58_134=1)
+    endif()
 else()
     message("-- ERROR!: ${PROJECT_NAME} excluded! please install all the dependencies and try again!")
     if (NOT HIP_FOUND)