sorry , SF111 is not an official deb package from Debian, it is a customized deb package from StarFive.
You can try upgrading Starfive-debian2409 to Debian13, ffmpeg for Riscv can also be upgraded to the latest version, I confirm that upgrading ffmpeg will not affect the GPU and VPU operation of vf2.
You can upgrade debian2409 yourself, You can also refer to debian2409pro and upgrade to debian13 using debian2409pro, which can ensure the normal operation of GPU and VPU.