extract_video_metadata.sh

#!/bin/sh

INPUT=$1

if [ ! -f "${INPUT}" ]; then
    echo "[${INPUT}] File not found!"
    exit 1
fi

METADATA_KEY="TAG:com.apple.quicktime.creationdate"
METADATA_KEY2="creation_time"
OUTPUT=`ffprobe -v error -show_format "${INPUT}" |  grep $METADATA_KEY | cut -d'=' -f 2`
METADATA_KEY_USED=$METADATA_KEY


if [ -z "${OUTPUT}" ]; then
    OUTPUT=`ffprobe -v error -show_format "${INPUT}" |  grep $METADATA_KEY2 | cut -d'=' -f 2`
    METADATA_KEY_USED=$METADATA_KEY2

    if [ -z "${OUTPUT}" ]; then
      echo "[${INPUT}] date could NOT be parsed!"
      exit 1
    fi
fi

echo "[${INPUT}] Date is: $OUTPUT (parsed from $METADATA_KEY_USED)"