MoviePy 是一个用于视频编辑的 Python 模块，可用于进行视频的基本操作（如剪切、连接、标题插入）、视频合成（也称非线性编辑）、视频处理或创建高级效果。
MoviePy 能处理的视频是 ffmpeg 格式的，支持的文件类型：*.mp4 *.wmv *.rm *.avi *.flv *.webm *.wav *rmvb 。
MoviePy: https://pypi.org/project/moviepy/
Github: https://github.com/Zulko/moviepy
1. 安装 MoviePy
操作系统：Windows 10 Home （64 位）
Python：3.8.1
Pip：21.3.1
Python 安装目录：C:\Applications\Python-3.8.1
MoviePy 依赖 ffmpeg，安装时会同时安装 imageio-ffmpeg，命令如下：
C:\> pip install moviepy
Looking in indexes: https://mirrors.aliyun.com/pypi/simple/
Collecting moviepy
Downloading https://mirrors.aliyun.com/pypi/packages/18/54/01a8c4e35c75ca9724d19a7e4de9dc23f0ceb8769102c7de056113af61c3/moviepy-1.0.3.tar.gz (388 kB)
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Preparing metadata (setup.py) ... done
Collecting decorator<5.0,>=4.0.2
Downloading https://mirrors.aliyun.com/pypi/packages/ed/1b/72a1821152d07cf1d8b6fce298aeb06a7eb90f4d6d41acec9861e7cc6df0/decorator-4.4.2-py2.py3-none-any.whl (9.2 kB)
Collecting tqdm<5.0,>=4.11.2
Downloading https://mirrors.aliyun.com/pypi/packages/47/bb/849011636c4da2e44f1253cd927cfb20ada4374d8b3a4e425416e84900cc/tqdm-4.64.1-py2.py3-none-any.whl (78 kB)
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Requirement already satisfied: requests<3.0,>=2.8.1 in c:\applications\python-3.8.1\lib\site-packages (from moviepy) (2.28.1)
Collecting proglog<=1.0.0
Downloading https://mirrors.aliyun.com/pypi/packages/8b/f5/cab5cf6a540c31f5099043de0ae43990fd9cf66f75ecb5e9f254a4e4d4ee/proglog-0.1.10-py3-none-any.whl (6.1 kB)
Requirement already satisfied: numpy>=1.17.3 in c:\applications\python-3.8.1\lib\site-packages (from moviepy) (1.23.3)
Collecting imageio<3.0,>=2.5
Downloading https://mirrors.aliyun.com/pypi/packages/ec/5b/521fcf5836cc46672b04e1ec7a94c0869ca6cc6a6e147277f1eb8cbb6886/imageio-2.22.1-py3-none-any.whl (3.4 MB)
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Collecting imageio_ffmpeg>=0.2.0
Downloading https://mirrors.aliyun.com/pypi/packages/b7/d2/d838be81d375cc461083a30fca976ce325d052bf5ece1bfe9a4fe92d0a57/imageio_ffmpeg-0.4.7-py3-none-win_amd64.whl (22.6 MB)
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Collecting pillow>=8.3.2
Downloading https://mirrors.aliyun.com/pypi/packages/8f/59/97618ad67fc0639ed588c60cfe9d91417f7bae8c87bbe7c7784b0ffdb9f1/Pillow-9.2.0-cp38-cp38-win_amd64.whl (3.3 MB)
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Requirement already satisfied: idna<4,>=2.5 in c:\applications\python-3.8.1\lib\site-packages (from requests<3.0,>=2.8.1->moviepy) (3.3)
Requirement already satisfied: urllib3<1.27,>=1.21.1 in c:\applications\python-3.8.1\lib\site-packages (from requests<3.0,>=2.8.1->moviepy) (1.26.12)
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Requirement already satisfied: certifi>=2017.4.17 in c:\applications\python-3.8.1\lib\site-packages (from requests<3.0,>=2.8.1->moviepy) (2022.9.24)
Collecting colorama
Downloading https://mirrors.aliyun.com/pypi/packages/77/8b/7550e87b2d308a1b711725dfaddc19c695f8c5fa413c640b2be01662f4e6/colorama-0.4.5-py2.py3-none-any.whl (16 kB)
Using legacy 'setup.py install' for moviepy, since package 'wheel' is not installed.
Installing collected packages: colorama, tqdm, pillow, proglog, imageio-ffmpeg, imageio, decorator, moviepy
Running setup.py install for moviepy ... done
Successfully installed colorama-0.4.5 decorator-4.4.2 imageio-2.22.1 imageio-ffmpeg-0.4.7 moviepy-1.0.3 pillow-9.2.0 proglog-0.1.10 tqdm-4.64.1
注：本文使用 pip 阿里源，如果安装速度慢，可以参考 “Python系列（2）- Python 包 (package) 和 Pip 管理工具 ” 的 “2. Pip 管理工具” 调整 pip 源。
默认安装的 Moviepy 版本是 1.0.3 。
2. 视频属性
获取视频的大小、宽高、fps、时长等属性，代码如下：
#!/usr/bin/python
from moviepy import editor
video_clip = editor.VideoFileClip(r"C:\temp\a.mp4")
# 大小
print("video_clip.size: ", video_clip.size)
# 图像宽和高
print("video_clip.w: ", video_clip.w)
print("video_clip.h: ", video_clip.h)
# fps
print("video_clip.fps: ", video_clip.fps)
# 时长，单位：秒
print("video_clip.duration: ", video_clip.duration)
修改视频属性，代码如下：
#!/usr/bin/python
from moviepy import editor
sub_clip = editor.VideoFileClip(r"C:\temp\a.mp4").subclip(0, 10)
sub_clip = sub_clip.fx(editor.vfx.resize, width=480) # 调整尺寸，保持比例
# sub_clip = sub_clip.fx(editor.vfx.speedx, 2) # 调整倍数
# sub_clip = sub_clip.fx(editor.vfx.colorx, 0.5) # 画面调暗
sub_clip.write_videofile(r"C:\temp\out_1.mp4")
3. 视频音频合成
把一个视频和另一个视频的音频合成，代码如下：
#!/usr/bin/python
from moviepy import editor
sub_clip_a = editor.VideoFileClip(r"C:\temp\a.mp4").subclip(0, 10)
sub_clip_b = editor.VideoFileClip(r"C:\temp\b.mp4").subclip(0, 10)
# 获取 sub_clip_b 的音频
audio_b = sub_clip_b.audio
# 将 sub_clip_b 的音频和 sub_clip_a 合成
sub_clip_a = sub_clip_a.set_audio(audio_b)
sub_clip_a.write_videofile(r"C:\temp\out_2.mp4")
把一个视频和一个 MP3 合成，代码如下：
#!/usr/bin/python
from moviepy import editor
sub_clip = editor.VideoFileClip(r"C:\temp\a.mp4").subclip(0, 10)
audio = editor.AudioFileClip(r"C:\temp\123.mp3").subclip(0, 10)
sub_clip = sub_clip.set_audio(audio)
sub_clip.write_videofile(r"C:\temp\out_3.mp4")
4. 视频分割/合成
视频分割，代码如下：
#!/usr/bin/python
from moviepy import editor
video_clip = editor.VideoFileClip(r"C:\temp\a.mp4")
sub_clip = video_clip.subclip(10, 20);
sub_clip.write_videofile(r"C:\temp\out_split_001.mp4")
sub_clip = video_clip.subclip(30, 40);
sub_clip.write_videofile(r"C:\temp\out_split_002.mp4")
sub_clip = video_clip.subclip(50, 60);
sub_clip.write_videofile(r"C:\temp\out_split_003.mp4")
多个视频按照先后顺序拼接起来，代码如下：
#!/usr/bin/python
from moviepy import editor
video_clip1 = editor.VideoFileClip(r"C:\temp\out_split_003.mp4")
video_clip2 = editor.VideoFileClip(r"C:\temp\out_split_001.mp4")
clip = editor.concatenate_videoclips([video_clip1, video_clip2])
clip.write_videofile(r"C:\temp\out_concatenate_1.mp4")
多个视频在同一个画面上显示，代码如下：
#!/usr/bin/python
from moviepy import editor
video_clip1 = editor.VideoFileClip(r"C:\temp\a.mp4").subclip(0, 10).margin(10)
video_clip2 = editor.VideoFileClip(r"C:\temp\b.mp4").subclip(0, 10).margin(10)
clip = editor.clips_array([[video_clip1, video_clip2]])
clip.write_videofile(r"C:\temp\out_concatenate_2.mp4")
5. 视频内容编辑
把文本添加到视频上，代码如下：
#!/usr/bin/python
from moviepy import editor
video_clip = editor.VideoFileClip(r"C:\temp\a.mp4").subclip(0, 20)
# 调整音量，变为原来的 0.5
#video_clip = video_clip.volumex(0.5)
# 做一个文本剪贴板，自定义样式、颜色。
text_clip = editor.TextClip("Hello, Python Moviepy!", fontsize=52, color="red")
# 让文本在屏幕的正中间显示，持续 10 秒，设置透明度为 0.8
# 屏幕左上角为(0, 0)，右下角为(屏幕宽度, 屏幕高度)
"""
set_position((800, 500)): 显示在800, 500的位置上
set_position(("center", "center")): 显示在屏幕的正中央
set_position((0.4, 0.6), True): 显示在距离左边百分之40、距离上边百分之60的位置上
set_duration(10): 持续10秒
set_opacity(0.6): 设置透明度为0.6
"""
text_clip = text_clip.set_position(("center", "center")).set_duration(10).set_opacity(0.8)
# 然后把文本剪贴板贴在视频上
video_clip = editor.CompositeVideoClip([video_clip, text_clip])
# 然后导出视频,可以是其它的视频格式
video_clip.write_videofile(r"C:\temp\out_edit_1.mp4")
注：在 Windows 上执行以上脚本，执行到 editor.TextClip() 时，会报出如下错误：
OSError: MoviePy Error: creation of None failed because of the following error:
[WinError 2] 系统找不到指定的文件。.
.This error can be due to the fact that ImageMagick is not installed on your computer,
or (for Windows users) that you didn't specify the path to the ImageMagick binary in file conf.py,
or that the path you specified is incorrect
以上错误是因为缺少 ImageMagick 造成的，访问 http://www.imagemagick.org/script/download.php 下载 Windows 版的 ImageMagick，本文下载 ImageMagick-7.1.0-51-Q16-HDRI-x64-dll.exe。
下载后，双击 *.exe 文件，安装到 C:\Applications\ImageMagick-7.1.0-Q16-HDRI 目录。
Moviepy 的配置文件 C:\Applications\Python-3.8.1\Lib\site-packages\moviepy\config_defaults.py, 在文件的尾部有如下内容:
import os
FFMPEG_BINARY = os.getenv('FFMPEG_BINARY', 'ffmpeg-imageio')
IMAGEMAGICK_BINARY = os.getenv('IMAGEMAGICK_BINARY', 'auto-detect')
环境变量 IMAGEMAGICK_BINARY 对应的是 ImageMagick 的可执行文件，这里有两种修改方法。
方法1：直接修改 config_defaults.py 文件，修改代码如下：
import os
FFMPEG_BINARY = os.getenv('FFMPEG_BINARY', 'ffmpeg-imageio')
IMAGEMAGICK_BINARY = r'C:\Applications\ImageMagick-7.1.0-Q16-HDRI\magick.exe'
方法2：添加 Windows 系统变量 IMAGEMAGICK_BINARY，步骤如下：
右击 “我的电脑” → “属性” → “高级系统设置” → “高级” → “环境变量”
新建系统变量（点击 “系统变量” 下方的 “新建” 按钮）
变量名：IMAGEMAGICK_BINARY
变量值：C:\Applications\ImageMagick-7.1.0-Q16-HDRI\magick.exe
点击 “确定”
建议使用方法2，即添加系统变量 IMAGEMAGICK_BINARY，打开一个新的命令行控制台，再次执行以上 Python 脚本，完成视频编辑。
6. 视频分割工具
命令行方式运行可传入参数的视频分割工具 split-video.py，代码如下：
#!/usr/bin/python
import os, sys
import os.path as osp
from moviepy import editor
# 默认值
save_dir = '/out'
default_seconds = 10
max_count = 999
# 分割函数
def splitFile(filename, dura, sdir):
if filename.isspace() == True or dura < default_seconds or sdir.isspace == True:
print("Error: invalid parameters")
return
if osp.exists(filename) != True:
print(f"Error: \'{filename}\' not exists")
return
if osp.exists(sdir) != True:
os.mkdir(sdir)
print(f"Opening \'{filename}\' ...")
video_clip = editor.VideoFileClip(filename)
duration_end = video_clip.duration
if duration_end <= dura:
print(f"Error: video duration {video_clip.duration} seconds <= {dura} seconds, unable to split")
return
filecount = int(duration_end // dura)
if (duration_end % dura) > 1.0:
filecount += 1
if filecount > max_count:
print(f"Error: file count {filecount} > {max_count}, unable to split")
return
print(f"Split to {filecount} files ...")
#
basename = osp.basename(filename)
fileObj = osp.splitext(basename)
i = 1
start = 0
end = dura
while i <= filecount:
if start > duration_end:
break
if end > duration_end:
end = duration_end
sub_clip = video_clip.subclip(start, end)
sub_clip.write_videofile("{0}/{1}_{2:03d}{3}".format(sdir, fileObj[0], i, fileObj[1]))
start += dura
end += dura
i += 1
# 命令行入口
if __name__=="__main__":
msg = """Usage: python %s [file] [seconds] [sdir]
file - Source file, full path
seconds - Duration, default 10 seconds
sdir - Output dir
"""
count = len(sys.argv)
if count < 2:
print(msg % sys.argv[0])
elif count == 2:
dura = default_seconds
sdir = osp.abspath('.') + save_dir
splitFile(sys.argv[1], dura, sdir)
elif count == 3:
dura = int(sys.argv[2])
if dura < default_seconds:
dura = default_seconds
sdir = osp.abspath('.') + save_dir
splitFile(sys.argv[1], dura, sdir)
else:
dura = int(sys.argv[2])
if dura < default_seconds:
dura = default_seconds
sdir = sys.argv[3]
if sdir.isspace() == True:
sdir = osp.abspath('.') + save_dir
splitFile(sys.argv[1], dura, sdir)
注：Windows 10 Home（64 位） + Python 3.8.1 + Moviepy 1.0.3 环境下，测试通过。
假设 split-video.py 在 D:\Workshop\python 目录下，视频文件为 D:\temp\a.mp4，视频时长为 246 秒，我们要把 a.mp4 分割为每个 30 秒长度的小视频。命令行格式如下：
D:\Workshop\python> python split-video.py D:\temp\a.mp4 30
Opening 'D:\temp\a.mp4' ...
Split to 9 files ...
Moviepy - Building video D:\Workshop\python/out/a_001.mp4.
MoviePy - Writing audio in a_001TEMP_MPY_wvf_snd.mp3
MoviePy - Done.
Moviepy - Writing video D:\Workshop\python/out/a_001.mp4
Moviepy - Done !
Moviepy - video ready D:\Workshop\python\moviepy/out/a_001.mp4
Moviepy - Building video D:\Workshop\python\moviepy/out/a_002.mp4.
MoviePy - Writing audio in a_002TEMP_MPY_wvf_snd.mp3
MoviePy - Done.
Moviepy - Writing video D:\Workshop\python\moviepy/out/a_002.mp4
...
标签：视频,MoviePy,sub,clip,Python,moviepy,mp4,video,editor From： https://www.cnblogs.com/tkuang/p/16830598.html