convert-to-mp4.sh

#!/bin/sh

check_ffmpeg() {
  # Check if the `ffmpeg` command is available
  if which ffmpeg >/dev/null; then
    # If `ffmpeg` is available, return 0
    return 0
  else
    # If `ffmpeg` is not available, return 1
    return 1
  fi
}

get_filename_without_extension() {
  # Get the filename without the path
  filename=$(basename "$1")
  # Remove the extension from the filename
  filename=$(echo "$filename" | sed 's/\.[^.]*$//')
  # Return the result
  echo "$filename"
}

# Check if ffmpeg is not found, exit program
if [ ! check_ffmpeg ]; then
  echo 'ffmpeg command not found!'
  exit 1
fi

# Check if no parameter present, exit program
if [ $# -eq 0 ]; then
  echo 'Put file path as first argument!'
  exit 1
fi

# Process input
filename=$(get_filename_without_extension "$1")
filename="${filename}.mp4"

# Run ffmpeg scripts
ffmpeg -y -i "$1" -vcodec h264 -acodec mp2 "$filename"