resize video with ffmpeg

ffmpeg-resize.sh

#!/usr/bin/env bash

INPUT="${1}"
OUTPUT="${2}"
SIZE="1920:1080" # horizontal
# SIZE="1080:1920" # vertical
BITRATE_V="4800k"

# https://trac.ffmpeg.org/wiki/Encode/H.265

ffmpeg -i ${INPUT} \
    -c:v libx265 -vtag hvc1 -x265-params pass=1 \
    -b:v "${BITRATE_V}" -vf "scale=${SIZE}" \
    -an \
    -map_metadata 0 \
    -preset slower \
    -f null /dev/null

ffmpeg -i ${INPUT} \
    -c:v libx265 -vtag hvc1 -x265-params pass=2 \
    -b:v "${BITRATE_V}" -vf "scale=${SIZE}" \
    -c:a copy \
    -map_metadata 0 \
    -preset slower \
    ${OUTPUT}