1 enzstd creates Zstandard compressed stream of frames, where each frame
2 holds exactly single WARC record. It also explicitly adds checksum.
3 Utility takes records from stdin, where each record has 64-bit
4 big-endian length prefix.
6 unzstd decompresses Zstandard frames stream from stdin to stdout. If
7 stream starts with the dictionary (either compressed, or uncompressed)
8 it is loaded first. If 3rd file descriptor is opened, then each frame's
9 offset (its size) with decompressed data size is printed in
10 tab-separated format. If the stream contains dictionary, then first
11 frame's data size equals to zero.