OpenCV: FFMPEG: tag 0x00000021/‘！？’未找到(格式为'mp4 / MP4 (MPEG-4第14部分)‘)’
OpenCV: FFMPEG: tag 0x00000021/‘！？’未找到(格式为'mp4 / MP4 (MPEG-4第14部分)‘)’
提问于 2020-05-12 21:24:17
我在尝试运行python脚本时出错。我正在尝试做一个基于pyimagesearch教程的项目。
代码:在第一个脚本中：
filename = tempVideo.path[tempVideo.path.rfind("/") + 1:]
s3.upload_file(tempVideo.path, self.conf["s3_bucket"],
filename, ExtraArgs={"ACL": "public-read",
"ContentType": "video/mp4"})在主脚本中：
tempVideo = TempFile(ext=".mp4")
writer = cv2.VideoWriter(tempVideo.path, 0x21, 30, (W, H),
True)我收到的错误：
OpenCV: FFMPEG: tag 0x00000021/'!???' is not found (format 'mp4 / MP4 (MPEG-4 Part 14)')'
Exception in thread Thread-4:
Traceback (most recent call last):
File "/usr/lib/python3.7/threading.py", line 917, in _bootstrap_inner
self.run()
File "/usr/lib/python3.7/threading.py", line 865, in run
self._target(*self._args, **self._kwargs)
File "/home/pi/Desktop/pi-security-camera/pyimagesearch/notifications/twilionotifier.py", line 27, in _send
"ContentType": "video/mp4"})
File "/home/pi/.virtualenvs/cv/lib/python3.7/site-packages/boto3/s3/inject.py", line 131, in upload_file
extra_args=ExtraArgs, callback=Callback)
File "/home/pi/.virtualenvs/cv/lib/python3.7/site-packages/boto3/s3/transfer.py", line 279, in upload_file
future.result()
File "/home/pi/.virtualenvs/cv/lib/python3.7/site-packages/s3transfer/futures.py", line 106, in result
return self._coordinator.result()
File "/home/pi/.virtualenvs/cv/lib/python3.7/site-packages/s3transfer/futures.py", line 265, in result
raise self._exception
File "/home/pi/.virtualenvs/cv/lib/python3.7/site-packages/s3transfer/tasks.py", line 255, in _main
self._submit(transfer_future=transfer_future, **kwargs)
File "/home/pi/.virtualenvs/cv/lib/python3.7/site-packages/s3transfer/upload.py", line 549, in _submit
upload_input_manager.provide_transfer_size(transfer_future)
File "/home/pi/.virtualenvs/cv/lib/python3.7/site-packages/s3transfer/upload.py", line 237, in provide_transfer_size
transfer_future.meta.call_args.fileobj))
File "/home/pi/.virtualenvs/cv/lib/python3.7/site-packages/s3transfer/utils.py", line 245, in get_file_size
return os.path.getsize(filename)
File "/usr/lib/python3.7/genericpath.py", line 50, in getsize
return os.stat(filename).st_size
FileNotFoundError: [Errno 2] No such file or directory: './/13675f07-ecec-48ae-97bf-32109eb3ed7d.mp4'感谢您的建议:)
回答 1
Stack Overflow用户
发布于 2020-06-10 07:34:39
我也犯了同样的错误。这对我很有效：
fourcc = cv2.VideoWriter_fourcc(*"mp4v")
tempVideo = TempFile(ext=".mp4")
writer = cv2.VideoWriter(tempVideo.path, fourcc, 30, (W, H), True)页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/61762229
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