From 5a9583c4cd33584ee68b76d0911afb287ebcc964 Mon Sep 17 00:00:00 2001
From: JunHo Kim <ghcjswo@gmail.com>
Date: Thu, 1 Jul 2021 11:32:06 +0900
Subject: [PATCH] init

---
 pillar_detection.py | 111 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 111 insertions(+)
 create mode 100644 pillar_detection.py

diff --git a/pillar_detection.py b/pillar_detection.py
new file mode 100644
index 0000000..498f282
--- /dev/null
+++ b/pillar_detection.py
@@ -0,0 +1,111 @@
+import os
+from collections import Counter
+import cv2
+import glob
+import re
+import subprocess
+import argparse
+
+parser = argparse.ArgumentParser()
+parser.add_argument("-i", "--input_dir", default="./")
+args = parser.parse_args()
+
+# cropdetect 에서 얻은 정보 => cv2로 그림 그리면서 confirm.
+
+# confirm 안되면 w:h:x:y 를 콘솔로 정정할 수 있게 만듦 => 다시 confirm 시도
+# confirm 되면 crop 진행 (resize는 일단 보류)
+
+# cropinfo 로그로 쓸수 있게 txt로 저장
+
+def main():
+    # fpath = "01.mp4"
+    fpath = "01. Group S - I Swear MV.avi"
+    print ("File to detect crop: %s " % fpath)
+    p = subprocess.Popen(["ffmpeg", "-ss", "30", "-i", fpath, "-vf", "cropdetect=limit=38:reset=30", "-vframes", "500", "-f", "rawvideo", "-y", "cropPos.mp4"], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+    infos = p.stderr.read().decode('utf-8')
+    # print (infos)
+    # allCrops = re.findall(CROP_DETECT_LINE + ".*", infos)
+    allCrops = re.findall("crop=\S+", infos)
+    # print ("Crop Infos : ")
+    # print (allCrops) 
+    mostCommonCrop = Counter(allCrops).most_common(1)
+    print ("most common crop: %s" % mostCommonCrop)
+    global crop
+    crop = mostCommonCrop[0][0]
+
+    cropPos = crop.split(":")
+
+    # delete "crop="
+    cropPos[0] = cropPos[0][5:]
+
+    cropPos = [int(x) for x in cropPos]
+
+    vid_name = os.path.basename(fpath)
+    capture = cv2.VideoCapture(fpath)
+
+    # play speed : 33ms / frame
+    while True:
+        key = cv2.waitKeyEx(33)
+        # 27 : ESC
+        if key == 27:
+            break
+        # Left
+        elif key == 0x250000:
+            cropPos[2] -= 1
+            cropPos[0] += 2
+            print(cropPos)
+        # Up
+        elif key == 0x260000:
+            cropPos[3] -= 1
+            cropPos[1] += 2
+            print(cropPos)
+        # Right
+        elif key == 0x270000:
+            cropPos[0] -= 2
+            cropPos[2] += 1
+            print(cropPos)
+        # Down
+        elif key == 0x280000:
+            cropPos[1] -= 2
+            cropPos[3] += 1
+            print(cropPos)
+        # Num 4
+        elif key == 52:
+            cropPos[2] -= 1
+            cropPos[0] -= 1
+            print(cropPos)
+        # Num 8
+        elif key == 56:
+            cropPos[3] -= 1
+            cropPos[1] -= 1
+            print(cropPos)
+        # Num 6
+        elif key == 54:
+            cropPos[0] += 1
+            cropPos[2] += 1
+            print(cropPos)
+        # Num 2
+        elif key == 50:
+            cropPos[1] += 1
+            cropPos[3] += 1
+            print(cropPos)
+
+        frame_pos = capture.get(cv2.CAP_PROP_POS_FRAMES)
+        frame_count = capture.get(cv2.CAP_PROP_FRAME_COUNT)
+
+        if(frame_pos == frame_count):
+            capture.open(vid)
+
+        ret, frame = capture.read()
+        
+        cv2.rectangle(frame, (cropPos[2],cropPos[3]), (cropPos[2] + cropPos[0],cropPos[3] + cropPos[1]), (0, 0, 255), thickness=1, lineType=cv2.LINE_8)
+        # cv2.rectangle(frame, (2,45), (720,431), (0, 0, 255), thickness=1, lineType=cv2.LINE_8)
+        cv2.imshow(f'{vid_name}', frame)
+
+    capture.release()
+    cv2.destroyAllWindows()
+
+    p = subprocess.Popen(["ffplay", "-i", fpath, "-vf", f"crop={cropPos[0]}:{cropPos[1]}:{cropPos[2]}:{cropPos[3]}"], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+
+if __name__ == "__main__":
+    main()
\ No newline at end of file