  This paper presents an in-depth analysis of film grain handling in
open-source implementations of the Versatile Video Coding (VVC) standard. We
focus on two key components: the Film Grain Analysis (FGA) module implemented
in VVenC and the Film Grain Synthesis (FGS) module implemented in VVdeC. We
describe the methodologies used to implement these modules and discuss the
generation of Supplementary Enhancement Information (SEI) parameters to signal
film grain characteristics in the encoded video sequences. Additionally, we
conduct subjective and objective evaluations across Full HD videos to assess
the effectiveness of film grain handling. Our results demonstrate the
capability of the FGA and FGS techniques to accurately analyze and synthesize
film grain, thereby improving the visual quality of encoded video content.
Overall, our study contributes to advancing the understanding and
implementation of film grain handling techniques in VVC open-source
implementations, with implications for enhancing the viewing experience in
multimedia applications.
