For frame perfect cuts you need to re-encode. You can use lossless H264 encoding for intermediary cuts before the final one so that you don't unnecessarily degr

For frame perfect cuts you need to re-encode. You can use lossless H264 encoding for intermediary cuts before the final one so that you don't unnecessarily degrade quality. I wonder if there is a solution which would just copy the pieces in between the starting and ending points while only re-encoding the first and last piece as required.