ffmpeg视频转码和获取视频第一帧和获取视频任意一帧shell脚本

ffmpeg视频转码和获取视频第一帧shell脚本shell #!/bin/sh echo "ffmpegmp4" ffmpegmp4(){ if [ -f "$1" -a -s "$1" ];then if [ "${1##*.}" = "mp4" -o "${1##*.}" = "flv" -o "${1##*.}" = "MP4" -o "${1##*.}" = "FLV" ];th

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