python为视频添加水印

环境配置

笔者环境：win10专业版， python3.8.0

• 官方文档：https://zulko.github.io/moviepy/install.html【可能需要魔法】

1. pip install ez_setup
2. pip install moviepy

添加图片水印

import moviepy.editor as mp

#本地视频位置
video = mp.VideoFileClip(r"D:\resource\myresource\4393644710024974337.mp4")

#准备log图片
logo = (mp.ImageClip(r"C:\Users\zrail\Downloads\touxiang.jpeg")
        .set_duration(video.duration) # 水印持续时间
        .resize(height=100) # 水印的高度，会等比缩放
        .margin(right=8, top=8, opacity=1) # 水印边距和透明度
        .set_pos(("left","center"))) # 水印的位置

final = mp.CompositeVideoClip([video, logo])
# mp4文件默认用libx264编码， 比特率单位bps
final.write_videofile("test.mp4", codec="libx264", bitrate="10000000")

报错

1. RuntimeError: The current Numpy installation ('C:\\Users\\zrail\\.conda\\envs\\py380\\lib\\site-packages\\numpy\\__init__.py') fails to pass a sanity check due to a bug in the windows runtime. See this issue for more information: https://tinyurl.com/y3dm3h86

• 使用搜索引擎找到解决方案，切换numpy版本，链接：https://github.com/numpy/numpy/issues/17726

添加文字水印

# -*- coding: utf-8 -*-
from moviepy.editor import VideoFileClip,CompositeVideoClip

#本地视频位置
from moviepy.video.VideoClip import TextClip
#subclip视频截取开始时间和结束时间
video = VideoFileClip(r"D:\resource\myresource\4393644710024974337.mp4").subclip(0,1)

#制作文字，指定文字大小和颜色
txt_clip = ( TextClip("zxl shuiyin",fontsize=30,color='red')
             .set_position('center')#水印内容居中
             .set_duration(1) )#水印持续时间

result = CompositeVideoClip([video, txt_clip]) #在视频上覆盖文本
result.write_videofile("tttttest.mp4",fps=25)#fps:视频文件中每秒的帧数

报错

1. `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`

• 翻译报错信息并使用搜索引擎找到解决方案，链接：https://stackoverflow.com/questions/51928807/moviepy-cant-detect-imagemagick-binary-on-windows
• 安装ImageMagick，并修改源码链接：https://blog.csdn.net/qq_23944915/article/details/86514301

具体没有仔细研究，水印的各种细节有待处理，这里只是抛砖引玉。剩下的靠大家了