FFMPEG - Multi-version support (#270)

* FFMPEG 5.X - Support

* FFMPEG 5.X - Support

* FFMPEG - Multiversion support

* FFMPEG - Support FFMPEG AVCODEC > 58.134.X

samples/videoDecodePerf/CMakeLists.txt

@@ -61,7 +61,6 @@ find_package(FFmpeg QUIET)
 # find rocDecode
 find_library(ROCDECODE_LIBRARY NAMES rocdecode HINTS ${ROCM_PATH}/lib)
 find_path(ROCDECODE_INCLUDE_DIR NAMES rocdecode.h PATHS /opt/rocm/include/rocdecode ${ROCM_PATH}/include/rocdecode)
-
 if(ROCDECODE_LIBRARY AND ROCDECODE_INCLUDE_DIR)
     set(ROCDECODE_FOUND TRUE)
     message("-- ${White}${PROJECT_NAME}: Using rocDecode -- \n\tLibraries:${ROCDECODE_LIBRARY} \n\tIncludes:${ROCDECODE_INCLUDE_DIR}${ColourReset}")
@@ -77,13 +76,21 @@ if(HIP_FOUND AND FFMPEG_FOUND AND ROCDECODE_FOUND AND Threads_FOUND)
     # rocDecode
     include_directories (${ROCDECODE_INCLUDE_DIR})
     set(LINK_LIBRARY_LIST ${LINK_LIBRARY_LIST} ${ROCDECODE_LIBRARY})
-    #threads
+    # threads
+    set(THREADS_PREFER_PTHREAD_FLAG ON)
+    find_package(Threads REQUIRED)
     set(LINK_LIBRARY_LIST ${LINK_LIBRARY_LIST} Threads::Threads)
-
+    # sample app exe
     list(APPEND SOURCES ${PROJECT_SOURCE_DIR} videodecodeperf.cpp ${CMAKE_CURRENT_SOURCE_DIR}/../../utils/rocvideodecode/roc_video_dec.cpp)
     add_executable(${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)