1.1 Glossary

This document uses the following terms:

ANSI character: An 8-bit Windows-1252 character set unit.

ARGB: A color space wherein each color is represented as a quad (A, R, G, B), where A represents the alpha (transparency) component, R represents the red component, G represents the green component, and B represents the blue component. The ARGB value is typically stored as a 32-bit integer, wherein the alpha channel is stored in the highest 8 bits and the blue value is stored in the lowest 8 bits.

Coordinated Universal Time (UTC): A high-precision atomic time standard that approximately tracks Universal Time (UT). It is the basis for legal, civil time all over the Earth. Time zones around the world are expressed as positive and negative offsets from UTC. In this role, it is also referred to as Zulu time (Z) and Greenwich Mean Time (GMT). In these specifications, all references to UTC refer to the time at UTC-0 (or GMT).

discrete wavelet transform (DWT): A mathematical procedure that can be used to derive a discrete representation of a signal.

inverse discrete wavelet transform (IDWT): A mathematical procedure that can be used to reconstruct a signal without loss of information.

little-endian: Multiple-byte values that are byte-ordered with the least significant byte stored in the memory location with the lowest address.

Quality of Experience (QoE): A subjective measure of a user's experiences with a media service.

RAIL window: A local client window that mimics a remote application window.

terminal server: A computer on which terminal services is running.

XRGB: A color space wherein each color is represented as a quadruple (X, R, G, B), where X is unused, R represents the red component, G represents the green component, and B represents the blue component. XRGB effectively has the same color range as RGB.

MAY, SHOULD, MUST, SHOULD NOT, MUST NOT: These terms (in all caps) are used as defined in [RFC2119]. All statements of optional behavior use either MAY, SHOULD, or SHOULD NOT.