a.sh

#!/bin/bash

# Encodes a bluray disc into mp4.
# ffmpeg parameters are tuned for blu-ray anime.

usage(){
  echo "Usage: sudo $(basename $0) BD_ISO"
}

if [ $# -ne 1 ]
then
  usage
  exit 1
fi

FFMPEG=ffmpeg
NUM_THREADS=$(nproc)

INPUT_FILE=$1
FILE_NAME=$(basename "$INPUT_FILE")
BASE_NAME=${FILE_NAME%.*}

OUTPUT_DIR="/mnt/Volume1/tmp/encoded"
OUTPUT_FILE="${OUTPUT_DIR}/${BASE_NAME}.mp4"
MOUNT_DIR="/mnt/ffmpeg"

OWNING_USER="shin"
OWNING_GROUP="staff"

PARAM="-f mp4 \
  -map 0:0 -map 0:1 \
  -c:v libx264 -crf 18 \
  -s 1920x1080 \
  -aspect 16:9 \
  -subq 9 -cmp chroma \
  -vsync 1 \
  -c:a libfdk_aac -ac 2 -ar 48000 -b:a 256k -cutoff 20000 \
  -threads ${NUM_THREADS}"


mount "$INPUT_FILE" "$MOUNT_DIR"

${FFMPEG} -i bluray:"${MOUNT_DIR}" ${PARAM} "${OUTPUT_FILE}"

umount "$MOUNT_DIR"
chown "${OWNING_USER}":"${OWNING_GROUP}" "${OUTPUT_FILE}"
chmod 644 "${OUTPUT_FILE}"

exit 0

b.sh

#!/bin/bash

# Encodes a video file into mp4.
# ffmpeg parameters are tuned for bluray anime.

usage(){
  echo "Usage: $(basename $0) BDTS_FILE"
}

if [ $# -ne 1 ]
then
  usage
  exit 1
fi

FFMPEG=ffmpeg
NUM_THREADS=$(nproc)

INPUT_FILE=$1
FILE_NAME=$(basename "$INPUT_FILE")
BASE_NAME=${FILE_NAME%.*}

OUTPUT_DIR=$(dirname "$INPUT_FILE")
OUTPUT_DIR="/mnt/Volume1/tmp/encoded"
OUTPUT_FILE="${OUTPUT_DIR}/${BASE_NAME}.mp4"

PARAM="-f mp4 \
  -map 0:0 -map 0:1 \
  -c:v libx264 -crf 18 \
  -s 1920x1080 \
  -aspect 16:9 \
  -subq 9 -cmp chroma \
  -vsync 1 \
  -c:a libfdk_aac -ac 2 -ar 48000 -b:a 256k -cutoff 20000 \
  -threads ${NUM_THREADS}"

${FFMPEG} -i "${INPUT_FILE}" ${PARAM} "${OUTPUT_FILE}"

exit 0