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# Netease Cloud Music Copyright Protection File Dump
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## 简介
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感谢大佬的 [anonymous5l/ncmdump ](https://github.com/anonymous5l/ncmdump)项目，因好奇加密算法就用 python 移植了下。自测发现转换出来的媒体文件都已包含媒体信息(包括专辑封面)，~~故未再实现原 repo 中的写 tag 操作~~，应 [issue #1](https://github.com/nondanee/ncmdump/issues/1) 要求补上了写 tag 操作。相比 C++ 实现，此版 python 实现慢不少 (瓶颈在异或操作)，实用性不大，善用左上角搜索寻求其它版本。仅供学习交流，**请勿传播扩散**。
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## Fork
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- [JamieDummy/NCM_dump](https://github.com/JamieDummy/NCM_dump): 增加 GUI
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- [mnilzg/ncmdump](https://github.com/mnilzg/ncmdump): 使用 numpy 大幅提高性能
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## 依赖
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```
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$ pip install pycryptodome mutagen
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```
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## 使用
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### 指定文件
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```
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$ python ncmdump.py [files ...]
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```
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### 遍历工作目录
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```
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$ python ncmdump.py
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```
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### 更多选项
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```
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$ python app.py -h
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usage: ncmdump [-h] [-f format] [-o output] [-d] [-c | -s] [input [input ...]]
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positional arguments:
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input ncm file or folder path
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optional arguments:
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-h, --help show this help message and exit
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-f format customize naming format
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-o output customize saving folder
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-d delete source after conversion
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-c overwrite file with the same name
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-s skip conversion if file exist
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```
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> 自定义命名参数: %artist%, %title%, %album%
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