pub type PFN_vkCmdBeginVideoCodingKHR = unsafe extern "system" fn(_command_buffer: CommandBuffer, _begin_info: *const VideoBeginCodingInfoKHR);pub type PFN_vkCmdBeginVideoCodingKHR = unsafe extern "system" fn(_command_buffer: CommandBuffer, _begin_info: *const VideoBeginCodingInfoKHR);