[英]Running into OSError when I use MoviePy
我編寫了一個程序,將特定文件夾中的所有視頻轉換為15秒gif。 它拍攝每個視頻,制作各種長度的子片段,並將這些子片段連接起來以制作15秒的視頻文件
但是,使用MoviePy處理某些視頻時,我遇到了一些錯誤。 :
Traceback (most recent call last):
File "C:\Users\...\Desktop\Python\Test\15secondsgifs.py", line 75, in <module>
main()
File "C:\Users\...\Desktop\Python\Test\15secondsgifs.py", line 69, in main
short_clip = make_clips(vid,clip_dur,i,parts)
File "C:\Users\...\Desktop\Python\Test\15secondsgifs.py", line 30, in make_clips
clip = (vid.subclip(t1, t2))
File "<decorator-gen-39>", line 2, in subclip
File "C:\Users\...\AppData\Local\Programs\Python\Python35-32\lib\site-packages\moviepy\decorators.py", line 89, in wrapper
return f(*new_a, **new_kw)
File "<decorator-gen-38>", line 2, in subclip
File "C:\Users\...\AppData\Local\Programs\Python\Python35-32\lib\site-packages\moviepy\decorators.py", line 29, in apply_to_mask
newclip = f(clip, *a, **k)
File "<decorator-gen-37>", line 2, in subclip
File "C:\Users\...\AppData\Local\Programs\Python\Python35-32\lib\site-packages\moviepy\decorators.py", line 41, in apply_to_audio
newclip = f(clip, *a, **k)
File "C:\Users\...\AppData\Local\Programs\Python\Python35-32\lib\site-packages\moviepy\Clip.py", line 391, in subclip
newclip = self.fl_time(lambda t: t + t_start, apply_to=[])
File "C:\Users\...\AppData\Local\Programs\Python\Python35-32\lib\site-packages\moviepy\Clip.py", line 189, in fl_time
keep_duration=keep_duration)
File "C:\Users\...\AppData\Local\Programs\Python\Python35-32\lib\site-packages\moviepy\Clip.py", line 136, in fl
newclip = self.set_make_frame(lambda t: fun(self.get_frame, t))
File "<decorator-gen-57>", line 2, in set_make_frame
File "C:\Users\...\AppData\Local\Programs\Python\Python35-32\lib\site-packages\moviepy\decorators.py", line 14, in outplace
f(newclip, *a, **k)
File "C:\Users\...\AppData\Local\Programs\Python\Python35-32\lib\site-packages\moviepy\video\VideoClip.py", line 694, in set_make_frame
self.size = self.get_frame(0).shape[:2][::-1]
File "<decorator-gen-14>", line 2, in get_frame
File "C:\Users\...\AppData\Local\Programs\Python\Python35-32\lib\site-packages\moviepy\decorators.py", line 89, in wrapper
return f(*new_a, **new_kw)
File "C:\Users\...\AppData\Local\Programs\Python\Python35-32\lib\site-packages\moviepy\Clip.py", line 95, in get_frame
return self.make_frame(t)
File "C:\Users\...\AppData\Local\Programs\Python\Python35-32\lib\site-packages\moviepy\Clip.py", line 136, in <lambda>
newclip = self.set_make_frame(lambda t: fun(self.get_frame, t))
File "C:\Users\...\AppData\Local\Programs\Python\Python35-32\lib\site-packages\moviepy\Clip.py", line 188, in <lambda>
return self.fl(lambda gf, t: gf(t_func(t)), apply_to,
File "<decorator-gen-14>", line 2, in get_frame
File "C:\Users\...\AppData\Local\Programs\Python\Python35-32\lib\site-packages\moviepy\decorators.py", line 89, in wrapper
return f(*new_a, **new_kw)
File "C:\Users\...\AppData\Local\Programs\Python\Python35-32\lib\site-packages\moviepy\Clip.py", line 95, in get_frame
return self.make_frame(t)
File "C:\Users\...\AppData\Local\Programs\Python\Python35-32\lib\site-packages\moviepy\video\io\VideoFileClip.py", line 103, in <lambda>
self.make_frame = lambda t: self.reader.get_frame(t)
File "C:\Users\...\AppData\Local\Programs\Python\Python35-32\lib\site-packages\moviepy\video\io\ffmpeg_reader.py", line 175, in get_frame
self.initialize(t)
File "C:\Users\...\AppData\Local\Programs\Python\Python35-32\lib\site-packages\moviepy\video\io\ffmpeg_reader.py", line 103, in initialize
self.proc = sp.Popen(cmd, **popen_params)
File "C:\Users\...\AppData\Local\Programs\Python\Python35-32\lib\subprocess.py", line 842, in __init__
_cleanup()
File "C:\Users\...\AppData\Local\Programs\Python\Python35-32\lib\subprocess.py", line 505, in _cleanup
res = inst._internal_poll(_deadstate=sys.maxsize)
File "C:\Users\...\AppData\Local\Programs\Python\Python35-32\lib\subprocess.py", line 1259, in _internal_poll
if _WaitForSingleObject(self._handle, 0) == _WAIT_OBJECT_0:
OSError: [WinError 6] The handle is invalid
我該如何解決?
這僅在我嘗試遍歷VideoFileClip函數時發生。 我可以使用並行處理在Windows上解決此問題。
例如:
from multiprocessing.dummy import Pool as ThreadPool
# The number 5 is the number of iterations you need in parallel,
# for example if you want to process 5 videos with your function.
pool = ThreadPool(5)
#var1 and var2 or any number of vars should be a list
#pool.starmap will iterate these vars through your function in parallel
def myfunction(var1, var2):
clip = VideoFileClip('path')
#Do something
clip.reader.close()
clip.close()
pool.starmap(myfunction, zip(var1, var2))
顯然,當您完成嘗試通過VideoFileClip再次執行函數的迭代時,會出現“句柄無效”錯誤,並且必須重置jupyter筆記本,但至少可以在不接收任何os或python的情況下使用函數錯誤,使用pool.starmap所需的次數
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