Solved Basics to cut-join a video without re-encoding using I,P,B frames

[ovy]

I cut a large mp4 file into several small parts and later join them together using joiner software. I know that every parts have to start from a I-frame but what type of frame should I choose as end? B, P or I?
For example- a video frame is like IPBBPBBPI... which frame should be the last?

 

[whs]

I don't think it matters. But why don't you make a trailer. Then you don't have to worry about that.

 

[ovy]

Thanks WHS for your reply. So you mean end point can be any frame, no difference, right? Sometimes a glitch like overlapping, shakiness remains in that joining position that's what worries me. And what do you mean by a trailer?

 

[whs]

This is an example with a header and a trailer - introduction and closing.

https://www.youtube.com/watch?v=hfYDaJZV30I