1base64, hex
2
3	Base64 and hex de- and encoding of data flowing
4	through a channel.
5
6	Encodes on write, decodes on read.
7
8identity
9
10	No transformation
11
12counter
13
14	Identity, counting bytes.
15
16adler32, adler32pure, crc32
17
18	Compute checksums and write to external variables.
19
20observe
21
22	Divert copy of the data to additional channels.
23
24limitsize
25
26	Force EOF after reading N bytes, N configurable.
27
28spacer
29
30	Inserts separator string every n bytes.
31
32otp
33
34	One-Time-Pad encryption.
35
36zlib
37
38	zlib (de)compression (deflate, inflate).
39