A script to encode video using ffmpeg and x265 encoder

x265-encode.sh

#!/bin/bash
# need to install ffmpeg with x265 enabled, on macOS:
# sudo port install ffmpeg +nonfree
# or
# brew install ffmpeg --HEAD --with-fdk-aac --with-sdl2 --with-freetype \
#   --with-libass --with-libbluray --with-libvorbis --with-libvpx \
#   --with-opus --with-webp --with-x265

encode() {
    ffmpeg -i "$1" \
        -map 0:v \
        -map 0:a \
        -map 0:s \
        -c:v libx265 -preset medium \
        -c:a copy \
        -c:s ass \
        -tag:v hvc1 \
        -map_metadata 0:g \
        "$2"
}

process_folder() {
    SRCDIR="$1"
    OUTDIR="$1".x265
    mkdir -p "$OUTDIR"
    
    find "$SRCDIR" -type f -print0 | while IFS= read -r -d '' FILE; do
        FULLNAME=$(basename "$FILE")
        FILENAME="${FULLNAME%.*}"
        # EXTNAME="${FULLNAME##*.}"
        # read line </dev/tty # waite for enter
        echo "Processing $FULLNAME"
        OUTFILE="$OUTDIR/$FILENAME".mkv
        encode "$FILE" "$OUTFILE"  \
            && du -h "$OUTFILE" \
            || echo "encoding failed"
    done
}

main() {
    for INPUT in "$@" ; do
        test -d "$INPUT" && process_folder "$INPUT"
        test -f "$INPUT" && encode "$INPUT" "$INPUT".x265.mkv
    done
}

main "$@"