build/cmake: allow to build with hardware acceleration support

Change-Id: Ie525f767ab3985e54be6420bd3d3346b040d487b

CMakeLists.txt

@@ -14,6 +14,7 @@ option(JAMI_PLUGIN "Build with plugin support" ON)
 option(JAMI_JNI "Build the JNI binding" OFF)
 option(JAMI_DBUS "Build the DBUS binding" OFF)
 option(JAMI_VIDEO "Build with video support" ON)
+option(JAMI_VIDEO_ACCEL "Build video hardware acceleration support" ON)
 option(BUILD_CONTRIB "Build contrib to CONTRIB_PATH" ON)
 option(BUILD_EXTRA_TOOLS "Build extra tools" OFF)
 
@@ -261,6 +262,9 @@ target_compile_definitions(${PROJECT_NAME} PRIVATE
 )
 if (JAMI_VIDEO)
     target_compile_definitions(${PROJECT_NAME} PRIVATE ENABLE_VIDEO)
+    if (JAMI_VIDEO_ACCEL)
+        target_compile_definitions(${PROJECT_NAME} PRIVATE RING_ACCEL)
+    endif()
 endif()
 if (JAMI_PLUGIN)
     target_compile_definitions(${PROJECT_NAME} PRIVATE ENABLE_PLUGIN)