add blog

Author: itdoudoutech

doudou/2022-04-25-ffmpeg/app.py

@@ -0,0 +1,39 @@
+# coding:utf-8
+
+import ffmpeg
+
+"""
+path = 'main.mp4'
+## 获取视频信息
+probe = ffmpeg.probe(path)
+video_stream = next((stream for stream in probe['streams'] if stream['codec_type'] == 'video'), None)
+width = int(video_stream['width'])
+height = int(video_stream['height'])
+print(width, height)
+print(video_stream)
+
+## 视频镜像
+ffmpeg.input(path).hflip().output('output.mp4').run()
+ffmpeg.input(path).vflip().output('output.mp4').run()
+
+## 添加底板
+main = ffmpeg.input(path)
+logo = ffmpeg.input('logo.png')
+ffmpeg.filter([logo, main], 'overlay', 0, 500).output('out.mp4').run()
+
+## 添加水印
+main = ffmpeg.input(path)
+logo = ffmpeg.input('logo.png')
+ffmpeg.filter([main, logo], 'overlay', 0, 500).output('out.mp4').run()
+
+## 视频截取
+ffmpeg.input(path).trim(start_frame=10, end_frame=20).output('out3.mp4').run()
+
+## 视频拼接
+base = ffmpeg.input(path)
+ffmpeg.concat(
+    base.trim(start_frame=10, end_frame=20),
+    base.trim(start_frame=30, end_frame=40),
+    base.trim(start_frame=50, end_frame=60)
+).output('out3.mp4').run()
+"""

doudou/README.md

@@ -8,6 +8,8 @@ Python技术 公众号文章代码库
 
 ## 实例代码
 
+[ffmpeg](https://github.com/JustDoPython/python-examples/tree/master/doudou/2022-04-25-ffmpeg)
+
 [视频号视频下载](https://github.com/JustDoPython/python-examples/tree/master/doudou/2022-03-23-channel)
 
 [用 Python 在 Excel 中画画](https://github.com/JustDoPython/python-examples/tree/master/doudou/2021-12-31-img-excel)