105 lines
3.4 KiB
Bash
Executable File
105 lines
3.4 KiB
Bash
Executable File
#!/bin/bash
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usage(){
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cat << EOF
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$(basename $0) -a <accelerate> -b bitrate -d <directory> -p <prefix> -q -v <video_dir> -s <size>
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——————————————————————————————————————————————————————————————————————————————————
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Opt | Variable | Type | Definition | Default value
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——————————————————————————————————————————————————————————————————————————————————
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-a accelerate int Convert only 1/N images 1
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-b bitrate str Video bitrate 1500k
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-d directory path Directory path of images to convert ./pics
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-p prefix str Images filename prefix. ''
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-q quiet int Minimal output 0
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-v video_dir path Directory path to store video file. ./videos
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-s size str Images geometry. '1024x768'
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——————————————————————————————————————————————————————————————————————————————————
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EOF
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exit
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}
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panic(){ echo $@; exit 2;}
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directory="./pics"
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prefix=""
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accelerate="1"
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size='1024x768'
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video_dir="./videos"
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bitrate="1500k"
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quiet=0
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while getopts "a:b:d:hs:p:qr:v:" o; do
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case "${o}" in
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a)
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accelerate=${OPTARG}
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;;
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b)
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bitrate=${OPTARG}
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;;
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d)
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directory=${OPTARG}
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;;
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h)
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usage
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;;
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p)
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prefix=${OPTARG}
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;;
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q)
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quiet=1
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;;
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s)
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size=${OPTARG}
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;;
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v)
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video_dir=${OPTARG}
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;;
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\?)
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panic "Unknown option at position $OPTIND. Exiting."
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;;
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esac
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done
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# Safe test ffmpeg
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which ffmpeg &>/dev/null || panic "No ffmpeg found. Exiting."
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# Safe test directory
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directory="$( realpath ${directory} 2>/dev/null )/"
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[ -n "${directory}" ] && [ -d "${directory}" ] || panic "'${directory}' is not a valid directory. Exiting."
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# Safe test accelerate
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[ ${accelerate} -gt 0 ] || panic "Invalid rate '${rate}'"
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# Safe test prefix
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let c=0
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tmpfile=$( mktemp )
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for file in ${directory}${prefix}* ; do
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let $(( c++ ))
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[[ $(( $c % ${accelerate} )) -eq 0 ]] || [[ $rate -eq 1 ]] && echo "file '$file'" >> $tmpfile
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done
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[ 0 -eq $c ] && panic "No file found"
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# Safe test video_dir
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video_dir="$( realpath ${video_dir} 2>/dev/null )/"
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[ -n "${video_dir}" ] || panic "The video_dir option cannot be empty. Exiting."
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[ -d "${video_dir}" ] || {
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read -p "'${video_dir}' does not exist, do you want to create it? [Y/n] : "
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REPLY=${REPLY:-Y}
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[ "N" == ${REPLY^^} ] && panic "The video directory must exist. Exiting."
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mkdir -p ${video_dir} 2>/dev/null || panic "Failed to create '${video_dir}'. Exiting"
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}
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# Set video file name
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date=$(date +%s)
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video_file="${video_dir}$date.mp4"
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echo -e "\nSaving to video file $video_file\n"
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[ 0 -eq $quiet ] || quiet_options=" -hide_banner -loglevel quiet -stats "
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ffmpeg $quiet_options -f concat -safe 0 -i "${tmpfile}" -pix_fmt yuv420p -s "${size}" -vcodec libx264 -b ${bitrate} "${video_file}"
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rm -f $tmpfile
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