Notation for Constant/Variable Names

We use a form of Hungarian notation for names of input constants and output variables. In the case of i64CurrentField, for example, the "i64" preface tells you that the value is a 64-bit signed integer. Every scalar name starts with a one-, two-, or three-character tag that defines its type (in the C++ sense). These tags are:

An array name has an initial 'a' for array followed by one of the tags above. Thus abytLayer is an array of bytes. All arrays used are one-dimensional.

We add the following additional tags as appropriate:

Variable Notations

Thus aisizbitField is an array of integers that hold sizes (of fields) in bits, inbytTruncated is an integer that holds a count of bytes (that have been truncated), and ifrmofsbitLayerStart is an integer that holds a bit offset (of the start of a layer) within a frame.