moviepy音视频剪辑：TextClip.list(font)和search搜索字体报错UnicodeDecodeError：utf-8 codec cannott decode byte 问题
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在moviepy2.0.0.Dev版本中，执行如下语句：
from moviepy.editor import *
TextClip.search('gb', 'font')
报错：
Traceback (most recent call last):
File "F:/study/python/project/moviepyTest/moviepyTest.py", line 45, in
TextClip.search('gb', 'font')
File "C:\Program Files\Python37\lib\site-packages\moviepy\video\VideoClip.py", line 1307, in search
names_list = TextClip.list(arg)
File "C:\Program Files\Python37\lib\site-packages\moviepy\video\VideoClip.py", line 1283, in list
result = process.communicate()[0]
File "C:\Program Files\Python37\lib\subprocess.py", line 926, in communicate
stdout = self.stdout.read()
File "C:\Program Files\Python37\lib\codecs.py", line 322, in decode
(result, consumed) = self._buffer_decode(data, self.errors, final)
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xb7 in position 66845: invalid start byte
这是中文解码的支持问题，解决办法将list方法的解码部分的’UTF-8’换成’ASN’或’CP936都可以，修改后的代码如下：
def list(arg):
"""Returns a list of all valid entries for the ``font`` or ``color`` argument of
``TextClip``"""
popen_params = {"stdout": sp.PIPE, "stderr": sp.DEVNULL, "stdin": sp.DEVNULL}
if os.name == "nt":
popen_params["creationflags"] = 0x08000000
process = sp.Popen(
[IMAGEMAGICK_BINARY, "-list", arg], encoding='cp936', **popen_params
)
result = process.communicate()[0]
lines = result.splitlines()
if arg == "font":
# Slice removes first 8 characters: " Font: "
return [l[8:] for l in lines if l.startswith(" Font:")]
elif arg == "color":
# Each line is of the format "aqua srgb(0,255,255) SVG" so split on space and take
# the first item to get the color name.
# The first 5 lines are header information, not colors, so ignore
return [l.split(" ")[0] for l in lines[5:]]
else:
raise Exception("Moviepy Error: Argument must equal 'font' or 'color'")
更多moviepy的介绍请参考《PyQt+moviepy音视频剪辑实战文章目录》或《moviepy音视频开发专栏》。
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