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hauk0101 avatar hauk0101 commented on August 30, 2024

@LZhaoyang
你好,关于分片请求key文件的频率,其实原理是mmpeg库提供的加密解密方案,本身来说我并没有刻意去控制它的请求频率。
当然,我也没有深入去了解mmpeg的相关API,你可以通过去尝试深入了解mmpeg的相关API看看是否能够实现你想要的结果,包括key文件的请求频率,以及动态key的实现等等。

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fireinrain avatar fireinrain commented on August 30, 2024

我找了一下最新版本的ffmpeg在命令行加入这个参数-hls_flags periodic_rekey ,同时保证key_info.key中的秘钥文件地址是一直变动的,那么在ffmpeg切片切到下一片的时候那么它会去重新读取info中指定的key文件地址中的内容,这样的话只要事先指定一个key的集合,然后写个程序保持key_info.key文件中的内容是变化的,那么就可以做到每一片都是可以不一样的key

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hauk0101 avatar hauk0101 commented on August 30, 2024

@LZhaoyang good job,是这么个思路。

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huangkai4966 avatar huangkai4966 commented on August 30, 2024

你好,谢谢你做的这个demo。我尝试了一下,有两个问题想请教一下:

  1. 我查看浏览器的devtools 的network,每次请求一个分片就会请求一个key,这样感觉会有非常多的请求。
    是否可以只请求一次key,然后每次取得分片只使用这一个key来播放呢?
  2. 如果每次请求到一个key来解码一个分片,是否可以做到动态的key呢?也就是每一片的key是不一样的。
    我搜索过一些答案,基本都是固定的key。

你好,我现在也遇到了和你提出的第1条相同的问题,并且查询hls协议和mmpeg的参数也没能找到答案.请问你这边是否解决了关于控制切片ts访问key频率的方法呢,谢谢.

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