Commit 35e6b16

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add blog

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	`1`	`+# coding:utf-8`
	`2`	`+`
	`3`	`+import ffmpeg`
	`4`	`+`
	`5`	`+"""`
	`6`	`+path = 'main.mp4'`
	`7`	`+## 获取视频信息`
	`8`	`+probe = ffmpeg.probe(path)`
	`9`	`+video_stream = next((stream for stream in probe['streams'] if stream['codec_type'] == 'video'), None)`
	`10`	`+width = int(video_stream['width'])`
	`11`	`+height = int(video_stream['height'])`
	`12`	`+print(width, height)`
	`13`	`+print(video_stream)`
	`14`	`+`
	`15`	`+## 视频镜像`
	`16`	`+ffmpeg.input(path).hflip().output('output.mp4').run()`
	`17`	`+ffmpeg.input(path).vflip().output('output.mp4').run()`
	`18`	`+`
	`19`	`+## 添加底板`
	`20`	`+main = ffmpeg.input(path)`
	`21`	`+logo = ffmpeg.input('logo.png')`
	`22`	`+ffmpeg.filter([logo, main], 'overlay', 0, 500).output('out.mp4').run()`
	`23`	`+`
	`24`	`+## 添加水印`
	`25`	`+main = ffmpeg.input(path)`
	`26`	`+logo = ffmpeg.input('logo.png')`
	`27`	`+ffmpeg.filter([main, logo], 'overlay', 0, 500).output('out.mp4').run()`
	`28`	`+`
	`29`	`+## 视频截取`
	`30`	`+ffmpeg.input(path).trim(start_frame=10, end_frame=20).output('out3.mp4').run()`
	`31`	`+`
	`32`	`+## 视频拼接`
	`33`	`+base = ffmpeg.input(path)`
	`34`	`+ffmpeg.concat(`
	`35`	`+ base.trim(start_frame=10, end_frame=20),`
	`36`	`+ base.trim(start_frame=30, end_frame=40),`
	`37`	`+ base.trim(start_frame=50, end_frame=60)`
	`38`	`+).output('out3.mp4').run()`
	`39`	`+"""`

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`@@ -8,6 +8,8 @@ Python技术公众号文章代码库`
`8`	`8`
`9`	`9`	`## 实例代码`
`10`	`10`
	`11`	`+[ffmpeg](https://github.com/JustDoPython/python-examples/tree/master/doudou/2022-04-25-ffmpeg)`
	`12`	`+`
`11`	`13`	`[视频号视频下载](https://github.com/JustDoPython/python-examples/tree/master/doudou/2022-03-23-channel)`
`12`	`14`
`13`	`15`	`[用 Python 在 Excel 中画画](https://github.com/JustDoPython/python-examples/tree/master/doudou/2021-12-31-img-excel)`

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