tools: add video-util.sh (WIP)

This commit is contained in:
Evgeny Zinoviev 2022-06-07 01:04:44 +03:00
parent 2fc3d44a03
commit 04030c08f1

333
tools/video-util.sh Executable file
View File

@ -0,0 +1,333 @@
#!/bin/bash
set -e
DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )"
PROGNAME="$0"
BOLD=$(tput bold)
RST=$(tput sgr0)
RED=$(tput setaf 1)
GREEN=$(tput setaf 2)
YELLOW=$(tput setaf 3)
CYAN=$(tput setaf 6)
input=
command=
roi_file=
motion_threshold=1
ffmpeg_args="-nostats -loglevel error"
dvr_scan_args="-q"
verbose=
config_dir=$HOME/.config/video-util
config_dir_set=
debug() {
if [ -n "$verbose" ]; then
>&2 echo "$@"
fi
}
echoinfo() {
echo "${CYAN}$@${RST}"
}
echoerr() {
>&2 echo "${RED}${BOLD}error:${RST}${RED} $@${RST}"
}
echowarn() {
>&2 echo "${YELLOW}${BOLD}warning:${RST}${YELLOW} $@${RST}"
}
die() {
>&2 echo "error: $@"
exit 1
}
file_in_use() {
[ -n "$(lsof "$1")" ]
}
get_mtime() {
stat -c %Y "$1"
}
# converts date in format yyyy-mm-dd-hh.ii.ss to unixtime
date_to_unixtime() {
local date="$1"
date=${date//./-}
date=${date//-/ }
local nums=($date)
local y=${nums[0]}
local m=${nums[1]}
local d=${nums[2]}
local h=${nums[3]}
local i=${nums[4]}
local s=${nums[5]}
date --date="$y-$m-$d $h:$i:$s" +"%s"
}
filename_as_unixtime() {
local name="$1"
name="$(basename "$name")"
name="${name/record_/}"
name="${name/.mp4/}"
date_to_unixtime "$name"
}
config_get_prev_mtime() {
local prefix="$1"
[ -z "$prefix" ] && die "config_get_prev_mtime: no prefix"
local file="$config_dir/${prefix}_mtime"
if [ -f "$file" ]; then
debug "config_get_prev_mtime: $(cat "$file")"
cat "$file"
else
debug "config_get_prev_mtime: 0"
echo "0"
fi
}
config_set_prev_mtime() {
local prefix="$1"
[ -z "$prefix" ] && die "config_set_prev_mtime: no prefix"
local mtime="$2"
[ -z "$mtime" ] && die "config_set_prev_mtime: no mtime"
local file="$config_dir/${prefix}_mtime"
debug "config_set_prev_mtime: writing '$mtime' to '$file'"
echo "$mtime" > "$file"
}
usage() {
cat <<-_EOF
usage: $PROGNAME OPTIONS command
Options:
-i|--input input file/directory
-o|--output output file/directory
--roi-file path to file with ROI sets
-mt motion threshold
-v, -vv, vx be verbose
--config-dir config directory
Commands:
fix, mass-fix fix video timestamps
mass-fix-mtime fix mtimes of recordings
motion detect motion
snapshot take video snapshot
_EOF
exit 1
}
check_input_file() {
[ -z "$input" ] && die "input file not specified"
[ -f "$input" ] || die "input file '$input' doesn't exist"
}
check_input_dir() {
[ -z "$input" ] && die "input directory not specified"
[ -d "$input" ] || die "input directory '$input' doesn't exist"
}
fix_video_timestamps() {
local input="$1"
local dir=$(dirname "$input")
local temp="$dir/.temporary_fixing.mp4"
local mtime=$(get_mtime "$input")
# debug "fix_video_timestamps: ffmpeg $ffmpeg_args -i \"$input\" -y -c copy \"$temp\""
ffmpeg $ffmpeg_args -i "$input" -y -c copy "$temp" </dev/null
rm "$input"
mv "$temp" "$input"
local unixtime=$(filename_as_unixtime "$input")
touch --date=@$unixtime "$input"
}
do_mass_fix() {
local mtime=$(config_get_prev_mtime "fix")
local tmpfile=$(mktemp)
debug "do_mass_fix: created temporary file $tmpfile"
touch --date=@$mtime "$tmpfile"
debug "do_mass_fix: mtime of temp file: $(get_mtime $tmpfile)"
[ -f "$input/.temporary_fixing.mp4" ] && {
echowarn "do_mass_fix: '$input/.temporary_fixing.mp4' exists, deleting"
rm "$input/.temporary_fixing.mp4"
}
# find all files in $input directory, newer than $tmpfile's time,
# sort them in ascending order, and finally remove timestamps
# leaving only file names. Then loop through each line
find "$input" -type f -newer "$tmpfile" -printf "%T+ %p\n" | sort | awk '{print $2}' | while read file; do
if ! file_in_use "$file"; then
debug "do_mass_fix: calling fix_video_timestamps($file)"
fix_video_timestamps "$file"
echoinfo "fixed $file"
config_set_prev_mtime "fix" "$(filename_as_unixtime "$file")"
else
echowarn "file '$file' is in use"
fi
done
rm "$tmpfile"
}
do_mass_fix_mtime() {
local time
find "$input" -type f -name "*.mp4" | while read file; do
if [[ "$(basename "$file")" =~ ^record_.* ]]; then
time="$(filename_as_unixtime "$file")"
debug "$file: $time"
touch --date=@$time "$file"
else
echowarn "unrecognized file: $file"
fi
done
}
do_motion() {
local timecodes=()
if [ -z "$roi_file" ]; then
timecodes+=($(dvr_scan "$input"))
else
[ -f "$roi_file" ] || die "specified ROI sets file does not exists"
echoinfo "using roi sets from file: ${BOLD}$roi_file"
while read line; do
if ! [[ "$line" =~ ^#.* ]]; then
timecodes+=("$(dvr_scan "$input" "$line")")
fi
done < <(cat "$roi_file")
fi
timecodes="${timecodes[@]}"
timecodes=${timecodes// /,}
echo "all timecodes: $timecodes"
}
dvr_scan_fake() {
echo "00:05:06.930,00:05:24.063"
}
dvr_scan() {
local input="$1"
local args=
if [ ! -z "$2" ]; then
args="-roi $2"
echoinfo "starting dvr-scan, roi=($2), mt=$motion_threshold"
else
echoinfo "starting dvr-scan, no roi, mt=$motion_threshold"
fi
dvr-scan $dvr_scan_args -i "$input" -so --min-event-length 3s -df 3 --frame-skip 2 -t $motion_threshold $args | tail -1
}
[[ $# -lt 1 ]] && usage
while [[ $# -gt 0 ]]; do
case $1 in
-i|--input)
input="$2"
shift; shift
;;
--roi-file)
roi_file="$2"
shift; shift
;;
-mt)
motion_threshold="$2"
shift; shift
;;
fix|mass-fix|motion|snapshot|mass-fix-mtime)
command="$1"
shift
;;
-v)
verbose=1
shift
;;
-vx)
verbose=1
set -x
shift
;;
-vv)
verbose=1
ffmpeg_args="-loglevel info"
dvr_scan_args=""
shift
;;
--config-dir)
config_dir="$2"
config_dir_set=1
shift; shift
;;
*)
die "unrecognized option $1"
exit 1
;;
esac
done
[ -z "$config_dir_set" ] && echowarn "no --config-dir specified, using default ($config_dir)"
if [ ! -d "$config_dir" ]; then
mkdir "$config_dir" || die "failed to create config directory ($config_dir)"
fi
[ -z "$command" ] && die "command not specified"
case "$command" in
fix)
check_input_file
fix_video_timestamps "$input"
echo "done"
;;
mass-fix)
check_input_dir
do_mass_fix
;;
mass-fix-mtime)
check_input_dir
do_mass_fix_mtime
;;
motion)
check_input_file
do_motion
;;
snapshot)
check_input_file
[ -z "$output" ] && {
echowarn "--output not specified, using snapshot.jpg as default"
output="snapshot.jpg"
}
ffmpeg $ffmpeg_args -i "$input" -frames:v 1 -q:v 2 "$output" </dev/null
echoinfo "saved to $output"
;;
*)
echo "error: invalid command '$command'"
;;
esac