Question

我正在尝试使用Moviepy从上传的视频中生成缩略图。这是我的功能（instance是上传的FileField（视频））：

def generate_thumbnail(instance):
    filename = instance.image.path.split('/')[-1]
    print(filename) #successfully prints name of uploaded file: "testvideo.mp4"
    thumbnail = VideoFileClip('/tmp/%s' % filename) #this line sparks the error
    name = random_string() + '.png'
    time = random.randrange(60)
    thumbnail.save_frame('media/' + name, t=time, withmask=True)
    instance.thumbnail = name

thumbnail = VideoFileClip('/tmp/%s' % filename)返回错误：

OSError at /post/
MoviePy error: the file /tmp/testvideo.mp4 could not be found !
Please check that you entered the correct path.

完整追溯：

回溯：

File "/Users/zorgan/Desktop/app/lib/python3.5/site-packages/django/core/handlers/exception.py" in inner
  41.             response = get_response(request)

File "/Users/zorgan/Desktop/app/lib/python3.5/site-packages/django/core/handlers/base.py" in _get_response
  187.                 response = self.process_exception_by_middleware(e, request)

File "/Users/zorgan/Desktop/app/lib/python3.5/site-packages/django/core/handlers/base.py" in _get_response
  185.                 response = wrapped_callback(request, *callback_args, **callback_kwargs)

File "/Users/zorgan/Desktop/app/lib/python3.5/site-packages/django/contrib/auth/decorators.py" in _wrapped_view
  23.                 return view_func(request, *args, **kwargs)

File "/Users/zorgan/Desktop/project/site/post/views.py" in post
  50.                     generate_thumbnail(instance)

File "/Users/zorgan/Desktop/project/site/functions/helper_functions.py" in generate_thumbnail
  45.     thumbnail = VideoFileClip('/tmp/%s' % filename)

File "/Users/zorgan/Desktop/app/lib/python3.5/site-packages/moviepy/video/io/VideoFileClip.py" in __init__
  81.                                          fps_source=fps_source)

File "/Users/zorgan/Desktop/app/lib/python3.5/site-packages/moviepy/video/io/ffmpeg_reader.py" in __init__
  32.                                    fps_source)

File "/Users/zorgan/Desktop/app/lib/python3.5/site-packages/moviepy/video/io/ffmpeg_reader.py" in ffmpeg_parse_infos
  272.                       "path.")%filename)

Exception Type: OSError at /post/
Exception Value: MoviePy error: the file /tmp/testvideo.mp4 could not be found !
Please check that you entered the correct path.

知道问题是什么吗？

Answer 1

根据您在评论中的测试，确认传递给函数的路径。如果你以这种方式运行它，你将获得文件的原始路径，至少应该解决找不到文件的错误。

from django.urls import path, include
from rest_framework import routers
from rest_framework.response import Response
from rest_framework.views import APIView
from . import views


class DocsView(APIView):
    """
    RESTFul Documentation of my app
    """
    def get(self, request, *args, **kwargs):
        apidocs = {'api1title': request.build_absolute_uri('api1endpoint/'),
                   'api2title': request.build_absolute_uri('api2endpoint/'),
                   'api3title': request.build_absolute_uri('api3endpoint/'),
                   'api4title': request.build_absolute_uri('api4endpoint/'),
                   }
        return Response(apidocs)


router = routers.DefaultRouter()
router.register('api1endpoint', views.API1ViewSet)
router.register('api2endpoint', views.API2ViewSet)


urlpatterns = [
    path('', DocsView.as_view()),
    path('', include(router.urls)),
    path('api3endpoint/', views.API4View.as_view()),
    path('api4endpoint/', views.API4View.as_view()),
    ]

MoviePy错误：无法找到文件/tmp/testvideo.mp4！请检查您是否输入了正确的路径

1 个答案: