这是我的目标。
我正在执行以下代码。但是在创建文件时,它正在创建6kb的文件,并且说不能播放。我对opencv和python相当陌生。不知道我在想什么。使用Python 3.6在pycharm上运行此代码。还有
cv2.imshow('frame',frame)
十秒钟后停止,但正在后台进行录制并创建文件。
import numpy as np
import cv2
import time
import os
import random
import sys
fps=24
width=864
height=640
video_codec=cv2.VideoWriter_fourcc('D','I','V','X')
name = random.randint(0,1000)
print (name)
if (os.path.isdir(str(name)) is False):
name = random.randint(0,1000)
name=str(name)
name = os.path.join(os.getcwd(), str(name))
print('ALl logs saved in dir:', name)
os.mkdir(name)
cap = cv2.VideoCapture(0)
ret=cap.set(3, 864)
ret=cap.set(4, 480)
cur_dir = os.path.dirname(os.path.abspath(sys.argv[0]))
start=time.time()
video_file_count = 1
video_file = os.path.join(name, str(video_file_count) + ".avi")
print('Capture video saved location : {}'.format(video_file))
while(cap.isOpened()):
start_time = time.time()
ret, frame = cap.read()
if ret==True:
cv2.imshow('frame',frame)
if (time.time() - start > 10):
start = time.time()
video_file_count += 1
video_file = os.path.join(name, str(video_file_count) + ".avi")
video_writer = cv2.VideoWriter(video_file,video_codec, fps,(int(cap.get(3)),int(cap.get(4))))
time.sleep(10)
if cv2.waitKey(1) & 0xFF == ord('q'):
break
else:
break
cap.release()
cv2.destroyAllWindows()
我想要带有录制视频的文件。生成文件,但是大小为6kb,并且没有任何记录。
最佳答案
你快到了!鉴于我了解您的目标是什么,而对您的代码所做的更改却很少,因此这对我有用。
这会将每帧记录到当前视频中,同时每十秒钟写入一个新的视频文件。
import numpy as np
import cv2
import time
import os
import random
import sys
fps = 24
width = 864
height = 640
video_codec = cv2.VideoWriter_fourcc("D", "I", "V", "X")
name = random.randint(0, 1000)
print(name)
if os.path.isdir(str(name)) is False:
name = random.randint(0, 1000)
name = str(name)
name = os.path.join(os.getcwd(), str(name))
print("ALl logs saved in dir:", name)
os.mkdir(name)
cap = cv2.VideoCapture(0)
ret = cap.set(3, 864)
ret = cap.set(4, 480)
cur_dir = os.path.dirname(os.path.abspath(sys.argv[0]))
start = time.time()
video_file_count = 1
video_file = os.path.join(name, str(video_file_count) + ".avi")
print("Capture video saved location : {}".format(video_file))
# Create a video write before entering the loop
video_writer = cv2.VideoWriter(
video_file, video_codec, fps, (int(cap.get(3)), int(cap.get(4)))
)
while cap.isOpened():
start_time = time.time()
ret, frame = cap.read()
if ret == True:
cv2.imshow("frame", frame)
if time.time() - start > 10:
start = time.time()
video_file_count += 1
video_file = os.path.join(name, str(video_file_count) + ".avi")
video_writer = cv2.VideoWriter(
video_file, video_codec, fps, (int(cap.get(3)), int(cap.get(4)))
)
# No sleeping! We don't want to sleep, we want to write
# time.sleep(10)
# Write the frame to the current video writer
video_writer.write(frame)
if cv2.waitKey(1) & 0xFF == ord("q"):
break
else:
break
cap.release()
cv2.destroyAllWindows()
关于python - 以指定的时间间隔录制视频,然后将其保存到OpenCv Python文件中,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/55411269/