微信小视频切割脚本

cut_video_fragments.sh

#!/bin/bash

FILENAME=${1}
MIN_FRAGMENT_LENGTH=300

if [ ! -f "${FILENAME}" ]; then
    echo "FILE NOT FOUND: $FILENAME"
    exit 1
fi

if [ ${2} ]; then
    TARGET=$2
else 
    TARGET="/tmp"
fi

TIME=`ffprobe -i "${FILENAME}" -show_entries format=duration -of csv="p=0" 2>/dev/null | awk '{print int($1+0.5)}'`

if [ ${TIME} >  ${MIN_FRAGMENT_LENGTH} ]; then
    FNAME=0
    for ((OFFSET = 0; OFFSET < ${TIME}; OFFSET=OFFSET+${MIN_FRAGMENT_LENGTH}))
    do
        TARGET_FILE="${TARGET}/${FNAME}.mp4"
        ffmpeg -i "${FILENAME}" -c copy -ss ${OFFSET} -to $((OFFSET + $MIN_FRAGMENT_LENGTH)) -y "${TARGET_FILE}" 2>/dev/null
        echo $TARGET_FILE CREATED
        FNAME=$((FNAME+1))
    done
else
    echo "NO NEED TO CUT"
fi

open ${TARGET}

众所周知,微信对传输视频有5分钟限制,利用 ffmpeg 裁切视频, 以利于发车 - . -