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| 1 | #!/bin/bash | |
| 2 | function cropdetect () | |
| 3 | {
| |
| 4 | FFOUT=/tmp/ffout | |
| 5 | CROP="1" | |
| 6 | TOTAL_LOOPS="10" | |
| 7 | ||
| 8 | A=0 | |
| 9 | while [ "$A" -lt "$TOTAL_LOOPS" ] ; do | |
| 10 | A="$(( $A + 1 ))" | |
| 11 | SKIP_SECS="$(( 120 * $A ))" | |
| 12 | ||
| 13 | ffmpeg -ss $SKIP_SECS -i "$@" -vframes 20 -an -sn -vf \ | |
| 14 | cropdetect=30:2 -y /tmp/crop.mp4 2>$FFOUT | |
| 15 | CROP[$A]=$(grep -m 1 crop= $FFOUT |awk -F "=" '{print $2}')
| |
| 16 | ||
| 17 | done | |
| 18 | ||
| 19 | ||
| 20 | B=0 | |
| 21 | while [ "$B" -lt "$TOTAL_LOOPS" ] ; do | |
| 22 | B="$(( $B + 1 ))" | |
| 23 | ||
| 24 | C=0 | |
| 25 | while [ "$C" -lt "$TOTAL_LOOPS" ] ; do | |
| 26 | C="$(( $C + 1 ))" | |
| 27 | ||
| 28 | if [ "${CROP[$B]}" == "${CROP[$C]}" ] ; then
| |
| 29 | COUNT_CROP[$B]="$(( ${COUNT_CROP[$B]} + 1 ))"
| |
| 30 | fi | |
| 31 | done | |
| 32 | done | |
| 33 | ||
| 34 | HIGHEST_COUNT=0 | |
| 35 | ||
| 36 | D=0 | |
| 37 | while [ "$D" -lt "$TOTAL_LOOPS" ] ; do | |
| 38 | D="$(( $D + 1 ))" | |
| 39 | ||
| 40 | if [ "${COUNT_CROP[$D]}" -gt "$HIGHEST_COUNT" ] ; then
| |
| 41 | HIGHEST_COUNT="${COUNT_CROP[$D]}"
| |
| 42 | GREATEST="$D" | |
| 43 | fi | |
| 44 | done | |
| 45 | rm /tmp/crop.mp4 | |
| 46 | CROP="${CROP[$GREATEST]}"
| |
| 47 | CROP=$(echo $CROP|awk -F ":" '{print $1-4":"$2-4":"$3+2":"$4+2}')
| |
| 48 | echo $CROP | |
| 49 | rm $FFOUT | |
| 50 | } | |
| 51 | cropdetect "$@" | |
| 52 | exit 0 |
