mp4 to iso conversion script

mp4-to-iso.sh

#!/bin/bash
# mp4-to-iso.sh - @jbuchbinder
# Simple MP4-to-DVD ISO conversion script

if [ $# -ne 2 ]; then
  echo "syntax: $0 input output"
  echo "example: $0 DemoReel.mp4 DEMOREEL"
  exit
fi

in="$1"
out="$2"

# Check for tools
TOOLS=""
if [ `which dvdauthor 2>&1 > /dev/null ; echo $?` -ne 0 ]; then
    TOOLS="${TOOLS} dvdauthor"
fi
if [ `which avconv 2>&1 > /dev/null ; echo $?` -ne 0 ]; then
    TOOLS="${TOOLS} avconv"
fi
if [ `which mkisofs 2>&1 > /dev/null ; echo $?` -ne 0 ]; then
    TOOLS="${TOOLS} mkisofs"
fi
if [ "$TOOLS" -ne "" ]; then
    echo "Could not find required tool(s) on path:${TOOLS}"
    exit 1
fi

# Convert to MPEG video
# OLD: used tovid -- too much setup
#tovid mpg -in "$in" -out "$out" -dvd -ntscfilm -noask -overwrite
# NEW: use avconv, which comes with ffmpeg / libav-tools (Ubuntu/Debian)
#avconv -i "$in" -c:v mpeg2video -q:v 2 -c:a libmp3lame "${out}.mpg"
avconv -i "$in" -f dvd -target film-dvd -q:v 2 "${out}.mpg"

# Use dvdauthor to create the proper structure
VIDEO_FORMAT=NTSC dvdauthor -o "$out" -t "${out}.mpg"
VIDEO_FORMAT=NTSC dvdauthor -o "$out" -T

# mkisofs does the rest
mkisofs -v -dvd-video -o "${out}.iso" "$out"

# Clean up
if [ -f "${out}.iso" ]; then
  rm -rf "${out}" "${out}.mpg"
fi

echo "Created '${out}.iso'"