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update turbo
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郑梓斌 committed Jul 23, 2018
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本分支为`Luban`主体项目引入`libjpeg-turbo``jni`版本

`libjpeg-turbo`是一个C语音编写的高效JPEG图像处理库,`Android`系统在7.0版本之前内部使用的是`libjpeg`非turbo版,并且为了性能关闭了[`Huffman`](https://en.wikipedia.org/wiki/Huffman_coding)编码。在7.0之后的系统内部使用了`libjpeg-turbo`库并且启用`Huffman`编码。

使用本分支可使7.0之前的系统也用上压缩速度更快,压缩效果更好的`libjpeg-turbo`库,但是需引入额外的`so`文件,会增加最终打包后`app`文件的大小。

本分支c语音源代码可查看此项目:[Luban-Turbo](https://github.com/Curzibn/Luban-Turbo)

# 导入

```sh
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