按理应该得到 index.m3u8 , 结果却是 index.png

> curl -q -L 'https://rouvb1.xyz/api/hls/cmtucyq1e0000s671b7yj4dfh' | file -
/dev/stdin: M3U playlist, ASCII text
``````
> curl -q -L 'https://rouvb1.xyz/api/hls/cmtw70ghc000amugc236rkepy' | file -
/dev/stdin: PNG image data, 128 x 128, 8-bit/color RGB, non-interlaced

# 怎么从这个 PNG 解出 M3U ?