vsplit

# -------------------------------------------------------------------------
# convert .mov file into segments of .mp4 files. I use it to create 60 sec video for my insta cooking channel with one command
# vsplit "original.mov" segment_span_in_seconds # "$(( 1*59 ))"
# this is inefficient but it works and I don't want to dig deeper into ffmpeg
# -------------------------------------------------------------------------
vsplit() {
    SRC="$1"
    ffmpeg -i "$SRC" -qscale 0 output.mp4
    ffmpeg -i output.mp4 -c:v libx264 -crf 22 -map 0 -segment_time ${2} -g 9 \
        -sc_threshold 0 -force_key_frames "expr:gte(t,n_forced*9)" \
        -reset_timestamps 1 -f segment "segment_%03d.mp4"
}