convert_to_tv.sh

#!/bin/bash
## Encode a file to an MP4 that my TV can play.
## Assumes SD card is inserted at /media/NO_NAME,
## and Handbrake CLI is installed (apt-get install handbrake-cli).
## See "HandBrakeCLI -z" for list of presets.
SDCARD=/media/NO_NAME
HANDBRAKE_PRESET=Normal

function die() { 
  echo "$@" 1>&2 
  exit 1
}
function usage() {
  die "Usage: encode_for_tv FILENAME"
}

if [[ ! -d "$SDCARD" ]]; then
  die "Target '$SDCARD' not found." 
fi

FILE=$1
if [[ "$FILE" == "" ]]; then
  usage
elif [[ ! -f "$FILE" ]]; then
  die "File '$FILE' does not exist."
fi

DEST=$SDCARD/`basename "${FILE%.*?}.mp4"`

if [[ -f "$DEST" ]]; then
  die "Destination '$DEST' already exists, not overwriting."
fi

echo "Encoding file $FILE..."
echo "Encoding to $DEST..."

HandBrakeCLI -i "$FILE" -o "$DEST" --preset=$HANDBRAKE_PRESET