thatll do

testdata/sentryshot.d/movement_detection_via_api_ffmpeg.sh

@@ -23,6 +23,17 @@ main() {
       echo recording=$recording >&2
       api "/api/recording/video/$recording" > /tmp/movement_detection_via_api_ffmpeg.sh.mp4
 
+      if video_has_movement; then
+         echo "$recording" >> ${SENTRYSHOT_DIR:-/tmp}/movement_detection_via_api_ffmpeg.sh.txt
+      else
+         echo no movement in "$recording"
+         api "/api/recording/delete/$recording" \
+            -X DELETE
+      fi
+   done
+}
+
+video_has_movement() {
    local fps=$(_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 $NF}' | sed 's/.*=//'))
@@ -49,20 +60,13 @@ main() {
       has_change=true
    else
       local max_flattened_score=$(echo "${flattened_scores[@]:5:${#flattened_scores[@]}-10}" | tr ' ' '\n' | sort -n | tail -n 1)
-         echo "${max_flattened_score#*.} > ${threshold#*.}"
+      echo "has movement? $max_flattened_score > $threshold" >&2
-         if [[ "${max_flattened_score#*.}" > "${threshold#*.}" ]]; then
+      if awk "BEGIN { exit !($max_flattened_score > $threshold)}"; then
          has_change=true
       fi
    fi
 
-      if $has_change; then
+   $has_change
-         echo "$recording" >> ${SENTRYSHOT_DIR:-/tmp}/movement_detection_via_api_ffmpeg.sh.txt
-      else
-         echo no movement in "$recording"
-         api "/api/recording/delete/$recording" \
-            -X DELETE
-      fi
-   done
 }
 
 api() {