Zstandard Compression

The entire buffer (including the optional metadata) can be compressed with the -z option. Since this is a regular Zstd frame it follows the same conventions for loading: call ZSTD_getFrameContentSize(), which will verify the frame's magic and return the uncompressed size, create a buffer large enough for the content, then call ZSTD_decompress() to expand the content.

Example code to follow.