Enhance ltx2.3's multi-frame input multi-parameter video generation, automatic scene splitting, strengthen reference consistency, no need to generate scene splits.

You can refer to the video for usage: 【ltx2.3 multi-parameter scene splitting video generation】 https://www.bilibili.com/video/BV1RZ5u6sEE9/?share_source=copy_web&vd_source=2b437005e505ed588d988d09b1a4e28e