From cb102044e64aa48b1563324965ca1715546e284a Mon Sep 17 00:00:00 2001
From: Patrick McGuire <mcguirepr89@gmail.com>
Date: Fri, 1 Oct 2021 19:35:11 -0400
Subject: [PATCH] adding RECORDING_LENGTH and EXTRACTION_LENGTH

---
 scripts/birdnet_analysis.sh       | 15 +++++++++------
 scripts/birdnet_recording.sh      |  2 ++
 scripts/extract_new_birdsounds.sh |  1 +
 scripts/install_config.sh         |  4 ++--
 4 files changed, 14 insertions(+), 8 deletions(-)

diff --git a/scripts/birdnet_analysis.sh b/scripts/birdnet_analysis.sh
index dd91ad2..ef1fc48 100755
--- a/scripts/birdnet_analysis.sh
+++ b/scripts/birdnet_analysis.sh
@@ -42,13 +42,16 @@ run_analysis() {
   WEEK=$(date +"%U")
   cd ${HOME}/BirdNET-Lite || exit 1
   for i in "${files[@]}";do
+
+    set -x
+    FILE_LENGTH="$(ffmpeg -i ${1}/${i} 2>&1 \
+      | awk -F. '/Duration/ {print $1}' \
+      | cut -d':' -f3-4)"
+    [ -z ${RECORDING_LENGTH} ] && RECORDING_LENGTH=9
+    [ ${RECORDING_LENGTH} == "60" ] && RECORDING_LENGTH=01:00
+    [ "${FILE_LENGTH}" == "00:${RECORDING_LENGTH}" ] || continue
+
     if [ -f ${1}/${i} ] && [ ! -f ${CUSTOM_LIST} ];then
-      FILE_LENGTH="$(ffmpeg -i ${1}/${i} 2>&1 \
-        | awk -F. '/Duration/ {print $1}' \
-	| cut -d':' -f3-4)"
-      set -x
-      [ ${RECORDING_LENGTH} == 60 ] && RECORDING_LENGTH=01:00
-      [ "${FILE_LENGTH}" == "${RECORDING_LENGTH}" ] || continue
       python3 analyze.py \
         --i "${1}/${i}" \
         --o "${1}/${i}.csv" \
diff --git a/scripts/birdnet_recording.sh b/scripts/birdnet_recording.sh
index 33ccd70..8a2c3a3 100755
--- a/scripts/birdnet_recording.sh
+++ b/scripts/birdnet_recording.sh
@@ -8,6 +8,8 @@ else
   STAMP="%H:%M:%S"
 fi
 
+[ -z RECORDING_LENGTH ] || RECORDING_LENGTH=9
+
 if pgrep arecord &> /dev/null ;then
   echo "Recording"
 else
diff --git a/scripts/extract_new_birdsounds.sh b/scripts/extract_new_birdsounds.sh
index f3561d8..e1a155b 100755
--- a/scripts/extract_new_birdsounds.sh
+++ b/scripts/extract_new_birdsounds.sh
@@ -130,6 +130,7 @@ for h in "${SCAN_DIRS[@]}";do
 
     ### TESTING longer extraction context
     set -x
+    [ -z ${EXTRACTION_LENGTH} ] || EXTRACTION_LENGTH=6
     SPACER=$(echo "(${EXTRACTION_LENGTH} - 3 )/2" |bc -l) 
     START=$(echo "${START} - ${SPACER}"|bc -l)
     END=$(echo "${END} + ${SPACER}"|bc -l)
diff --git a/scripts/install_config.sh b/scripts/install_config.sh
index 839a937..fc49a77 100755
--- a/scripts/install_config.sh
+++ b/scripts/install_config.sh
@@ -169,8 +169,8 @@ get_CHANNELS() {
     | uniq)"
   script -c "arecord -D ${SOUND_CARD} --dump-hw-params" -a "${SOUND_PARAMS}" &> /dev/null
   CHANNELS=$(awk '/CHANN/ { print $2 }' "${SOUND_PARAMS}" | sed 's/\r$//')
-  [ -z REC_CARD ] || REC_CARD=default
-  [ -z CHANNELS ] || CHANNELS=2
+  [ -z REC_CARD ] && REC_CARD=default
+  [ -z CHANNELS ] && CHANNELS=2
   echo "REC_CARD variable set to ${REC_CARD}"  
   echo "Number of channels available: ${CHANNELS}"
 }