Acronyms and Abbreviations

API

Application Programming Interface

AVC

Advanced Video Codec (same as H.264 and MPEG-4, part 10)

Direct3D

Microsoft* Direct3D* version 9 or 11.1

Direct3D9

Microsoft* Direct3D* version 9

Direct3D11

Microsoft* Direct3D* version 11.1

DXVA2

Microsoft DirectX* Video Acceleration standard 2.0

H.264

ISO*/IEC* 14496-10 and ITU-T* H.264, MPEG-4 Part 10, Advanced Video Coding, May 2005

HRD

Hypothetical Reference Decoder

IDR

Instantaneous decoding fresh picture, a term used in the H.264 specification

LA

Look Ahead. Special encoding mode where encoder performs pre analysis of several frames before actual encoding starts.

MPEG

Motion Picture Expert Group

MPEG-2

ISO/IEC 13818-2 and ITU-T H.262, MPEG-2 Part 2, Information Technology- Generic Coding of Moving Pictures and Associate Audio Information: Video, 2000

NAL

Network Abstraction Layer

NV12

A color format for raw video frames

PPS

Picture Parameter Set

QP

Quantization Parameter

RGB3

Twenty-four-bit RGB color format. Also known as RGB24

RGB4

Thirty-two-bit RGB color format. Also known as RGB32

SDK

Intel® Media Server Studio – SDK

SEI

Supplemental Enhancement Information

SPS

Sequence Parameter Set

VA API

Video Acceleration API

VBR

Variable Bit Rate

VBV

Video Buffering Verifier

VC-1

SMPTE* 421M, SMPTE Standard for Television: VC-1 Compressed Video Bitstream Format and Decoding Process, August 2005

video memory

memory used by hardware acceleration device, also known as GPU, to hold frame and other types of video data

VPP

Video Processing

VUI

Video Usability Information

YUY2

A color format for raw video frames

YV12

A color format for raw video frames

GPB

Generalized P/B picture. B-picture, containing only forward references in both L0 and L1.

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