PSI generation

Generate DVB output transport streams with accurate EPG schedules

PSI generation builds the output transport stream and carries the programme schedule in EIT tables. PAT, PMT, NIT, SDT, and EIT work together so the receiver can find services, read guide data, and present the correct schedule.

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Transport stream output PSI generation produces the multiplex the receiver consumes
EIT schedule The programme guide is carried in EIT present/following and schedule tables
Table chain PAT, PMT, NIT, SDT, and EIT stay aligned through the workflow
PSI/SI generator overview with EPG grid and transport stream controls
How it works

PSI generation creates the transport stream and the guide data together

The output transport stream is not just audio and video. It also carries the tables that tell receivers what services exist and what programmes are on now and later.

1

PAT and PMT

PAT points receivers to each service map, and PMT describes the elementary streams that make up the service.

2

NIT and SDT

NIT describes the network and tuning context, while SDT carries the human-readable service names and flags.

3

EIT schedules

EIT present/following and schedule tables carry the EPG data that receivers render in the guide.

EPG schedule view showing programme blocks and time slots
PSI/SI generator management view with transport stream controls and table status
What gets generated

The EPG grid is only one part of the DVB output

A complete PSI generation workflow produces the multiplex, the service metadata, and the EIT schedule tables that drive the guide.

A

Output transport stream

Generate the transport stream that carries the DVB services and the tables the receiver needs.

B

EPG schedule data

Populate EIT p/f and schedule tables so the now/next view and the programme grid stay current.

C

Receiver-ready tables

Keep the table set aligned so receivers can tune, decode, and display the guide correctly.

PSI/SI generator overview with EPG grid and transport stream controls

Generator output and guide view together

See the generated transport stream alongside the programme grid so the table flow is easier to understand.

EPG schedule view showing programme blocks and time slots

Schedule data carried in EIT

The EPG grid is populated from EIT present/following and schedule tables in the output stream.

PSI/SI generator management view with transport stream controls and table status

Table control and service configuration

Use the management view to confirm service identifiers, table versions, and schedule inputs before output is created.

Next step

Need a clearer view of PSI generation and EIT schedules?

We can walk through the transport stream output, the EIT schedule flow, and the table chain that the receiver uses to present the guide.

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