Table of Contents
Advertisement
Edje-2000
MPEG-2 -
MPTS -
Multiplex (n) -
sequentially incorporate several data streams into a single data stream in such a manner that each may later be
recovered intact.
Network -
NIT -
NTSC -
NvoD -
Packet -
PAL -
PAT -
Payload -
PCR -
PES -
PES Packet -
PES Packet Header -
PID -
PLL -
PMT -
P-frame -
Program -
PSI -
PSIP -
Adtec Digital, Inc. USA
ISO/IEC 13818 standard defining motion video and audio compression. It applies to all
layers of transmission (video, audio and system).
Multiple Program Transport Stream. An MPEG-2 transport stream containing several
programs that have been multiplexed.
A digital stream including one or more services in a single physical cannel. (v)-To
The set of MPEG-2 transport streams transmitted via the same delivery system.
Network Information Table (NIT). The DVB table that contains information about a
network's orbit, transponder, etc. It is always located on PID 0x0010. DVB
specifies two types of NITs, the NIT Actual and the NIT Other. The NIT Actual is
a mandatory table containing information about the physical parameters of the
network actually being accessed. The NIT Other contains information about the
physical parameters of other networks. The NIT Other is optional.
Nation TV Standard Committee Color TV System (USA and 60 Hz countries).
Near Video on Demand. This service allows for a single TV program to be broadcast
simultaneously with a few minutes of difference in starting time. For example, a
movie could be transmitted at 9:00, 9:15 and 9:30.
See Transport Packet.
Phase Alternating Line.
Program Association Table. This MPEG-2 table lists all the programs contained in the
transport stream and shows the PID vale for the PMT associated with each
program. The PAT is always found on PID 0x0000.
All the bytes in a packet that follow the packet leader.
Program Clock Reference. A time stamp in the transport stream that sets the timing in the
decoder. The PCR is transmitted at least every 0.1 seconds.
Packetized Elementary Stream. This type of stream contains packets of unidentified
length. These packets may be comprised of video or audio data packets and
ancillary data.
The structure used to carry elementary stream data (audio and video). It consists of a
header and payload.
The leading byes of a PES packet, which contain ancillary data for the elementary stream.
Packet Identifier. This unique integer value identifies elements in the transport stream such
as tables, data, or the audio for a specific program.
Phase Lock Loop. This locks the decoder clack to the original system clock through the
PCR.
Program Map Table. This MPEG-2 table specifies PID values for components of programs.
It also references the packets that contain PCR.
Predicted frame, or a picture coded using references to the nearest previous I- or P-
picture.
See Service.
Program Specific Information. PSI refers to MPEG-2 table data necessary for the
demultiplexing of a transport stream and the regeneration of programs within the
stream, PSI tables include PAT, CAT, PMT and NIT.
Program and System Information Protocol. The ATSC protocol for transmission of data
tables in the transport stream. Mandatory PSIP tables include MGT, STT, RRT,
VCT and EIT.
Real Time MPEG 2 Streaming Encoder
Version 1.3
Page 44 of 44
Advertisement
Table of Contents
