# 将一个视频加上片头和片尾
import os
# 设置新的工作目录
new_path = r'C:\Users\WangZhongQing\Desktop\video'
os.chdir(new_path)
# 验证当前工作目录已更改
print(os.getcwd())
from moviepy.editor import VideoFileClip, concatenate_videoclips
# 加载视频文件
video_A = VideoFileClip("模块2 2.1 交换机基础知识01.mp4")
video_B = VideoFileClip("模块2 2.1 交换机基础知识02.mp4")
video_C = VideoFileClip("片头.mp4") # 片头
video_D = VideoFileClip("片尾.mp4") # 片尾
# 拼接视频
video_A_with_CD = concatenate_videoclips([video_C, video_A, video_D], method="compose")
video_B_with_CD = concatenate_videoclips([video_C, video_B, video_D], method="compose")
# 注意：确保输出路径是正确的，并且您有足够的权限写入该路径。
# 如果路径包含中文或特殊字符，请确保您的系统支持这些字符，或者使用英文路径。
output_path_A = "path/to/output_A_with_CD.mp4"
output_path_B = "path/to/output_B_with_CD.mp4"
# 输出结果视频
video_A_with_CD.write_videofile(output_path_A, codec="libx264", audio_codec="aac")
video_B_with_CD.write_videofile(output_path_B, codec="libx264", audio_codec="aac")
运行之后出现如下错误：
```python
chunk: 1%|▋ | 90/8180 [00:00<00:16, 489.46it/s, now=None]
Moviepy - Building video path/to/output_A_with_CD.mp4.
MoviePy - Writing audio in output_A_with_CDTEMP_MPY_wvf_snd.mp3
MoviePy - Done.
Moviepy - Writing video path/to/output_A_with_CD.mp4
---------------------------------------------------------------------------
TypeError Traceback (most recent call last)
Cell In[28], line 30
27 output_path_B = "path/to/output_B_with_CD.mp4"
29 # 输出结果视频
---> 30 video_A_with_CD.write_videofile(output_path_A, codec="libx264", audio_codec="aac")
31 video_B_with_CD.write_videofile(output_path_B, codec="libx264", audio_codec="aac")
File ~\.conda\envs\py38\lib\site-packages\decorator.py:232, in fun(*args, **kw)
230 evaldict = dict(_call_=caller, _func_=func)
231 es = ''
--> 232 for i, extra in enumerate(extras):
233 ex = '_e%d_' % i
234 evaldict[ex] = extra
File ~\.conda\envs\py38\lib\site-packages\moviepy\decorators.py:54, in requires_duration(f, clip, *a, **k)
52 raise ValueError("Attribute 'duration' not set")
53 else:
---> 54 return f(clip, *a, **k)
File ~\.conda\envs\py38\lib\site-packages\decorator.py:232, in fun(*args, **kw)
230 evaldict = dict(_call_=caller, _func_=func)
231 es = ''
--> 232 for i, extra in enumerate(extras):
233 ex = '_e%d_' % i
234 evaldict[ex] = extra
File ~\.conda\envs\py38\lib\site-packages\moviepy\decorators.py:135, in use_clip_fps_by_default(f, clip, *a, **k)
130 new_a = [fun(arg) if (name=='fps') else arg
131 for (arg, name) in zip(a, names)]
132 new_kw = {k: fun(v) if k=='fps' else v
133 for (k,v) in k.items()}
--> 135 return f(clip, *new_a, **new_kw)
File ~\.conda\envs\py38\lib\site-packages\decorator.py:232, in fun(*args, **kw)
230 evaldict = dict(_call_=caller, _func_=func)
231 es = ''
--> 232 for i, extra in enumerate(extras):
233 ex = '_e%d_' % i
234 evaldict[ex] = extra
File ~\.conda\envs\py38\lib\site-packages\moviepy\decorators.py:22, in convert_masks_to_RGB(f, clip, *a, **k)
20 if clip.ismask:
21 clip = clip.to_RGB()
---> 22 return f(clip, *a, **k)
File ~\.conda\envs\py38\lib\site-packages\moviepy\video\VideoClip.py:300, in VideoClip.write_videofile(self, filename, fps, codec, bitrate, audio, audio_fps, preset, audio_nbytes, audio_codec, audio_bitrate, audio_bufsize, temp_audiofile, rewrite_audio, remove_temp, write_logfile, verbose, threads, ffmpeg_params, logger)
292 if make_audio:
293 self.audio.write_audiofile(audiofile, audio_fps,
294 audio_nbytes, audio_bufsize,
295 audio_codec, bitrate=audio_bitrate,
296 write_logfile=write_logfile,
297 verbose=verbose,
298 logger=logger)
--> 300 ffmpeg_write_video(self, filename, fps, codec,
301 bitrate=bitrate,
302 preset=preset,
303 write_logfile=write_logfile,
304 audiofile=audiofile,
305 verbose=verbose, threads=threads,
306 ffmpeg_params=ffmpeg_params,
307 logger=logger)
309 if remove_temp and make_audio:
310 if os.path.exists(audiofile):
File ~\.conda\envs\py38\lib\site-packages\moviepy\video\io\ffmpeg_writer.py:213, in ffmpeg_write_video(clip, filename, fps, codec, bitrate, preset, withmask, write_logfile, audiofile, verbose, threads, ffmpeg_params, logger)
211 logfile = None
212 logger(message='Moviepy - Writing video %s\n' % filename)
--> 213 with FFMPEG_VideoWriter(filename, clip.size, fps, codec = codec,
214 preset=preset, bitrate=bitrate, logfile=logfile,
215 audiofile=audiofile, threads=threads,
216 ffmpeg_params=ffmpeg_params) as writer:
218 nframes = int(clip.duration*fps)
220 for t,frame in clip.iter_frames(logger=logger, with_times=True,
221 fps=fps, dtype="uint8"):
File ~\.conda\envs\py38\lib\site-packages\moviepy\video\io\ffmpeg_writer.py:88, in FFMPEG_VideoWriter.__init__(self, filename, size, fps, codec, audiofile, preset, bitrate, withmask, logfile, threads, ffmpeg_params)
77 self.ext = self.filename.split(".")[-1]
79 # order is important
80 cmd = [
81 get_setting("FFMPEG_BINARY"),
82 '-y',
83 '-loglevel', 'error' if logfile == sp.PIPE else 'info',
84 '-f', 'rawvideo',
85 '-vcodec', 'rawvideo',
86 '-s', '%dx%d' % (size[0], size[1]),
87 '-pix_fmt', 'rgba' if withmask else 'rgb24',
---> 88 '-r', '%.02f' % fps,
89 '-an', '-i', '-'
90 ]
91 if audiofile is not None:
92 cmd.extend([
93 '-i', audiofile,
94 '-acodec', 'copy'
95 ])
TypeError: must be real number, not NoneType
视频下载链接（视频下载之后请勿滥用，有版权归属）
https://pan-yz.cldisk.com/external/m/file/1072834797179961344
