Cut multiple parts of a video with ffmpeg

The select filter is better for this.

ffmpeg -i video \
       -vf "select="between(t,4,6.5)+between(t,17,26)+between(t,74,91)",
            setpts=N/FRAME_RATE/TB" \
       -af "aselect="between(t,4,6.5)+between(t,17,26)+between(t,74,91)",
            asetpts=N/SR/TB" out.mp4

select and its counterpart filter is applied to the video and audio respectively. Segments selected are times 4 to 6.5 seconds, 17 to 26 seconds and finally 74 to 91 seconds. The timestamps are made continuous with the setpts and its counterpart filter..