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thatll do

master
bel 2024-09-07 15:29:01 -06:00
parent ddef839399
commit 8af32661eb
1 changed files with 37 additions and 33 deletions
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70
testdata/sentryshot.d/movement_detection_via_api_ffmpeg.sh vendored
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@ -23,39 +23,7 @@ main() {
echo recording=$recording >&2
api "/api/recording/video/$recording" > /tmp/movement_detection_via_api_ffmpeg.sh.mp4
local fps=$(_ffprobe -i /tmp/movement_detection_via_api_ffmpeg.sh.mp4 2>&1 | grep -o '[0-9]*\.*[0-9]* fps' | head -n 1 | awk '{print $1}')
local inspection="$(_ffmpeg -i /tmp/movement_detection_via_api_ffmpeg.sh.mp4 -vf 'select=not(mod(n\,'${fps%.*}')),select=gte(scene\,0),metadata=print:file=-' -an -f null - 2> /dev/null | paste - -)"
local scores=($(echo "$inspection" | awk '{print $NF}' | sed 's/.*=//'))
local flattened_scores=()
for i in $(seq 1 ${#scores[@]}); do
flattened_scores+=($(echo ${scores[@]:i-2:3} | tr ' ' '\n' | sort -n | head -n 2 | tail -n 1))
done
local threshold=1
local last_n=(${flattened_scores[@]:0:7})
for i in $(seq 1 ${#flattened_scores[@]}); do
last_n[$(( (i-1)%7 ))]=${flattened_scores[$((i-1))]}
max_of_last_n=$(echo "${last_n[@]}" | tr ' ' '\n' | sort | tail -n 1)
if [[ "$max_of_last_n" < "$threshold" ]]; then
threshold="$max_of_last_n"
fi
done
threshold="$(_perl -e "print $threshold + 0.005")"
local has_change=false
if [ "${#flattened_scores[@]}" -lt 10 ]; then
echo too short >&2
has_change=true
else
local max_flattened_score=$(echo "${flattened_scores[@]:5:${#flattened_scores[@]}-10}" | tr ' ' '\n' | sort -n | tail -n 1)
echo "${max_flattened_score#*.} > ${threshold#*.}"
if [[ "${max_flattened_score#*.}" > "${threshold#*.}" ]]; then
has_change=true
fi
fi
if $has_change; then
if video_has_movement; then
echo "$recording" >> ${SENTRYSHOT_DIR:-/tmp}/movement_detection_via_api_ffmpeg.sh.txt
else
echo no movement in "$recording"
@ -65,6 +33,42 @@ main() {
done
}
video_has_movement() {
local fps=$(_ffprobe -i /tmp/movement_detection_via_api_ffmpeg.sh.mp4 2>&1 | grep -o '[0-9]*\.*[0-9]* fps' | head -n 1 | awk '{print $1}')
local inspection="$(_ffmpeg -i /tmp/movement_detection_via_api_ffmpeg.sh.mp4 -vf 'select=not(mod(n\,'${fps%.*}')),select=gte(scene\,0),metadata=print:file=-' -an -f null - 2> /dev/null | paste - -)"
local scores=($(echo "$inspection" | awk '{print $NF}' | sed 's/.*=//'))
local flattened_scores=()
for i in $(seq 1 ${#scores[@]}); do
flattened_scores+=($(echo ${scores[@]:i-2:3} | tr ' ' '\n' | sort -n | head -n 2 | tail -n 1))
done
local threshold=1
local last_n=(${flattened_scores[@]:0:7})
for i in $(seq 1 ${#flattened_scores[@]}); do
last_n[$(( (i-1)%7 ))]=${flattened_scores[$((i-1))]}
max_of_last_n=$(echo "${last_n[@]}" | tr ' ' '\n' | sort | tail -n 1)
if [[ "$max_of_last_n" < "$threshold" ]]; then
threshold="$max_of_last_n"
fi
done
threshold="$(_perl -e "print $threshold + 0.005")"
local has_change=false
if [ "${#flattened_scores[@]}" -lt 10 ]; then
echo too short >&2
has_change=true
else
local max_flattened_score=$(echo "${flattened_scores[@]:5:${#flattened_scores[@]}-10}" | tr ' ' '\n' | sort -n | tail -n 1)
echo "has movement? $max_flattened_score > $threshold" >&2
if awk "BEGIN { exit !($max_flattened_score > $threshold)}"; then
has_change=true
fi
fi
$has_change
}
api() {
local path="$1"
shift