L64105 LSI Logic Corporation, L64105 Datasheet - Page 410

• Manufacturer Part Number: L64105
• Description: Mpeg-2 Audio/video Decoder
• Manufacturer: LSI Logic Corporation

G
I
B-4
Frame
GOF
GOP
I Picture
IDCT
IEC
IEC958
ITU
ITU-R BT.601
Glossary of Terms and Abbreviations
In motion video, a single image. Frames can be
presented at 25 frames per second (PAL standard) or at
30 frames per second (NTSC standard).
Group of Frames
A Linear PCM audio bitstream is divided in groups of
audio frames. Each GOF includes several audio packs
which, in turn, contain header data and audio frames.
Group of Pictures
MPEG bitstreams are divided into sequences, groups of
pictures, picture slices, macroblocks, and blocks in that
order. Each GOP includes at least one I picture and one
or more P and B pictures. See I, P, and B pictures.
Intraframe Picture
An I picture is a video frame that is individually
compressed and encoded without reference to another
frame. It is referred to as an anchor frame and is used to
predict successive frames using motion estimation.
Inverse Discrete Cosine Transform
An IDCT converts digital data from the frequency domain
into the time (spatial) domain.
International Electrotechnical Commission
The S/P DIF specification adopted by the IEC. See
S/P DIF.
International Telecommunications Union
Recommendation for digital video (4:2:2, 720 samples
per line). Also recommends chromaticity for YCbCr color
space.