Created
July 19, 2017 20:46
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Elixir binary matching from http://benjamintan.io/blog/2014/06/10/elixir-bit-syntax-and-id3/
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| mp3_byte_size = (byte_size(binary) - 128) | |
| << _ :: binary-size(mp3_byte_size), id3_tag :: binary >> = binary | |
| << "TAG", | |
| title :: binary-size(30), | |
| artist :: binary-size(30), | |
| album :: binary-size(30), | |
| year :: binary-size(4), | |
| comment :: binary-size(30), | |
| _rest :: binary >> = id3_tag |
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