= SV8 specification draft =


== File header ==

|| '''Field''' || '''length (bits)''' || '''Value''' ||
|| Magic || 24 || "MP+" ||
|| Version || 8 || 0x08 ||
This file header allow old mpc readers to stop decoding at this point, without crashing.

== Block formating ==

All blocks are formated using Key / Length / Value.
Key is 16 bits long. It's the block type.
Length is a variable size field using the same values as [http://www.matroska.org/technical/specs/index.html matroska] :
bits, big-endian
1xxx xxxx                                                                              - value 0 to  2^7-2
01xx xxxx  xxxx xxxx                                                                   - value 0 to 2^14-2
001x xxxx  xxxx xxxx  xxxx xxxx                                                        - value 0 to 2^21-2
0001 xxxx  xxxx xxxx  xxxx xxxx  xxxx xxxx                                             - value 0 to 2^28-2
...
The length is the size of the block in bytes, including the key and size fields. So the minimum length of a block is 3.
The value is the block content. Its size can be 0.

|| '''Field''' || '''length (bits)''' || '''Value''' ||
|| Key || 16 || "EX" ||
|| Length || n * 8, 0 < n < inf || 0x1A ||
|| Value || Lentgh * 8 || "exemple" ||