[HELP] how to cut out first 4 seconds and encode with Hybrid?

[ssdde]

there is a H265 MP4, i want to encode with H264 MP4, but i need to cut out about first 4 seconds, and last 3 seconds, using Hybrid to encode, is it possible?

if need NLE to do, but then only can encode with NLE software. i want to encode with Hybrid, can tune many places. is it possible to edit with NLE, then encode with Hybrid?