VideoDecodeRGB - Failure Fix (#248)

* Sample - ROCM PATH Fix

* Sample - Add missing lib

samples/videoDecodeRGB/CMakeLists.txt

@@ -63,8 +63,8 @@ set(AMDGPU_TARGETS "${DEFAULT_AMDGPU_TARGETS}" CACHE STRING "List of specific ma
 find_package(HIP QUIET)
 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)
+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)
@@ -72,6 +72,10 @@ if(ROCDECODE_LIBRARY AND ROCDECODE_INCLUDE_DIR)
 endif()
 
 if(HIP_FOUND AND FFMPEG_FOUND AND ROCDECODE_FOUND)
+    # Threads
+    set(THREADS_PREFER_PTHREAD_FLAG ON)
+    find_package(Threads REQUIRED)
+    set(LINK_LIBRARY_LIST ${LINK_LIBRARY_LIST} Threads::Threads)
     # HIP
     set(LINK_LIBRARY_LIST ${LINK_LIBRARY_LIST} hip::device)
     # FFMPEG