This document provides bit-accurate Film Grain Technology specifications for H.264 | MPEG-4 AVC bitstreams. Film grain simulation is an option for H.264 | MPEG-4 AVC video coding layer. These specifications make use of film grain characteristics Supplemental Enhancement Information (SEI) messages compliant with Annex D of the ITU-T Recommendation H.264 | ISO/IEC 14496-10 International Standard.