Video Clipping – Best practices

Are there any best practices for Video Clipping UX?

For desktop only.

I noticed some common UI patterns:

  1. Ribbon
  2. Clipping box
  3. Set/Mark in/out
  4. Timeline (various steps)

Q1: When the user drags the clipping box, should the ribbon follow the clipping box or not?

Q2: Should the timeline be placed on the top or on the bottom of the panel?

Q3: Should we have start/end time field boxes, or would the screen be cluttered?

Ribbon

Start/end time field boxes