Fix potential overflow in Visualizer effect

Bug: 30229821
Change-Id: Iea1c4a21735e893aeded95b980044ec0861a7ea8
(cherry picked from commit 2fa52194ef64843c2908c69527384c6c2fcdbafa)
(cherry picked from commit 57ac66340ad488a17fc285b6fc2635cb7375d72b)
(cherry picked from commit 9cb9810ecb63c8ff55ecf4bc77431dc5b0688b5f)
1 file changed