I’m writing a bit of Ruby to output SWF files.
SWF’s opcodes and arguments are variable-length streams of bits. They’re
packed in direct succession - i.e. not usually padded to byte
So, for example, you might have
00111 5-bit record
0110101 7-bit record
0000110 7-bit record
0001100 7-bit record
1111101 7-bit record
which would be packed as
(the final byte here is null-padded)
I’m trying to write these opcode by opcode, and get a bytestream out the
end of it. Currently I’m just appending each opcode to a long string
(m+=‘00111’), and when it comes to writing it out, splitting this every
eight characters and converting back to a single character. But this is
Can anyone suggest a faster way?
(Apologies if this shows up twice, I’ve been arguing with Google G.