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使用ffmpeg压缩视频,减少视频文件大小

2021-07-29
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07/29

使用ffmpeg压缩视频,减少视频文件大小

有的视频,如一些视频学习教程通常画面都是不大变化的,和变动速度快的打斗视频所需要的帧数完全不同,音质也不需要很高。可以降低fps和音频码率的方法大大压缩文件大小,而清晰度不变!

通常转成.mp4,采用H.264视频压缩算法和AAC音频压缩算法,视频帧率10fps,音频码率32k

直接输入下面的命令
ffmpeg -i input.mp4 -vcodec libx264 -crf 20 output.mp4

效果如下图所示效果如下图所示,体积小了差不多4倍

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  1. admin
    2021-08-15

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