error generated after a runtime

Traceback (most recent call last): File "C:/detectordeobjetos/setup.py", line 31, in <module> objetosDetectados = detector(frame) RuntimeError: Unsupported image type, must be 8bit gray or RGB image. [h264 @ 000000cedf0fe920] negative number of zero coeffs at 78 6 [h264 @ 000000cedf0fe920] error while decoding MB 78 6

code

import dlib
import cv2
import sys
import time
import requests

ip = "rtsp://admin:[email protected]/doc/page/preview.asp"
detector = dlib.simple_object_detector('C:/detectordeobjetos/thor.svm')
ipp = ("https://httpbin.org/post")
Nome = 'Detector de Objetos'
fonte = cv2.FONT_ITALIC
captura = cv2.VideoCapture(ip)
x = 0
tempo = 0
sinal = 0
time.sleep(1.0)




> while captura.isOpened():

    from datetime import datetime

    data_e_hora_atuais = datetime.now()
    data_e_hora_em_texto = data_e_hora_atuais.strftime('%d/%m/%Y %H:%M')
    conectado, frame = captura.read()
    tempo += 1

    print(tempo)

    sinal += 1
    objetosDetectados = detector(frame)
    for o in objetosDetectados:
        e, t, d, f = (int(o.left()), int(o.top()), int(o.right()), int(o.bottom()))
        cv2.rectangle(frame, (e, t), (d, f), (0, 255, 0), 1)
        cv2.putText(frame, 'Eixo Detectado', (e, t), fonte, 1.0, (0, 255, 0), 2, cv2.LINE_4)
        print("Objeto foi detectado")
        tempo = 0
        sinal = 0
        cv2.destroyAllWindows()
        time.sleep(5)

    if sinal == 5:
        xml = ("""<?xml version="1.0" encoding="iso-8859-1"?>
                    <calls>
                    <call>
                    <id>0000</id>
                    <mac>0013A20040A768C4</mac>
                    <bat>2.23</bat>
                    <dthora>""" + str(data_e_hora_em_texto) + """</dthora> </call> </calls>""")
        url = 'http://mmscon.cnhindustrial.ind.br/cnhind/mms/cebh/roti01.php'
        r = requests.post(ipp, {'data': xml}).text
        print(r)
        print("---Enviando Sinal ---")
        sinal = 0
        cv2.destroyAllWindows()
        time.sleep(5)

    captura.release()
    cv2.destroyAllWindows()
    sys.exit(0)