[erlang-questions] Badarg error

[Farruco Sanjurjo]

Hi,

I'm getting a badarg error in this code

from_binary(Data = <<Head:8, 0:1, PayloadLen:7, Trailing/bits>>, Acc) ->
  PayloadBytes=  case PayloadLen of
    126 ->
      <<ExtPayloadLen:16, _/binary>> = Trailing,
      2 + ExtPayloadLen;
    127 ->
      <<ExtPayloadLen:64, _/binary>> = Trailing,
      8 + ExtPayloadLen;
    _ ->
      %<<Payload:ExtPayloadLen/binary, Rest/binary>>
      PayloadLen
  end,
  FrameSize = 16 + (PayloadBytes * 8),
  <<Frame:FrameSize, Rest/binary>> = Data,
  from_binary(Rest, [decode_frame(<<Frame/binary>>) | Acc]);

The error points to the line " FrameSize = 16 + (PayloadBytes * 8)".

I've been struggling for a while but I can't figure out what's wrong. Any
suggestion?
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