無法使用 python 中的 opencv 和 xvid 編解碼器和輕子相機保存視頻

Question

我正在嘗試使用 XVID 將視頻保存為編解碼器和 .avi 格式，但每次我得到一個只有 6KB 的文件並且我無法播放它。 我正在使用輕子 3.5 相機。 我該如何解決這個問題？

fourcc = cv2.VideoWriter_fourcc(*"XVID")
out = cv2.VideoWriter('output_' + str(i) + '.avi', fourcc, 9.0, (160, 120), True)

請在下面找到我正在使用它的代碼 -

found_device = None
for device in CCI.GetDevices():
  if device.Name.startswith("PureThermal"):
    found_device = device

    print(" found lepton device")
    break

   if not found_device:
    print("Couldn't find lepton device")
   else:
    lep = found_device.Open()
     ID = lep.sys.GetFlirSerialNumber()
     print(ID)

for i in range(1):
   cv2_cap = cv2.VideoCapture(1)
   cv2_cap.set(3, 160)
   cv2_cap.set(4, 120)

fourcc = cv2.VideoWriter_fourcc('M', 'J', 'P', 'G')
out = cv2.VideoWriter('output.avi', fourcc, 9.0, (160, 120), True)

cv2.namedWindow("lepton", cv2.WINDOW_NORMAL)
print("Running, ESC or Ctrl-c to exit...")
while True:
    ret, img = cv2_cap.read()
    if ret == False:
        print("Error reading image")
        break

    cv2.imshow("lepton", img)
    if cv2.waitKey(1) & 0xFF == ord('q'):
        break

Answer 1

我通過添加 out.write(frame) 解決了這個問題

如下：

  cv2_cap = cv2.VideoCapture(1)
cv2_cap.set(3, 160)
cv2_cap.set(4, 120)

fourcc = cv2.VideoWriter_fourcc(*'DIVX')

out = cv2.VideoWriter("output.avi", fourcc, 9.0, (160, 120), True)


cv2.namedWindow("lepton", cv2.WINDOW_NORMAL)
print("Running, ESC or Ctrl-c to exit...")
while True:
    ret, img = cv2_cap.read()
    if ret == False:
        print("Error reading image")
        break
    out.write(img)
    cv2.imshow("lepton", img)
    if cv2.waitKey(1) & 0xFF == ord('q'):
        break