User manual

Grid view

The grid view shows individual packets of the transport stream, using the same colors as the bitrate chart. When the mouse is placed over a box, the mouse over shows details of that packet.

Show adaptation Field

When the check box "Show Adaptation Field" is selected all packets for which an adaptation field is present are shown like this.

When the check box "Show Payload Start" is selected all packets for which payload start flag is set are shown like this.

When the check box "Show Error Indicator" is selected all packets for which the transport_error_indicator flag is set are shown like this.

Zoom

With the Zoom radio buttons the size of the 'packet boxes' can be changed. When it is small it is easy to get a overview how distributed the PIDs are.

Lines

With the Grid Lines radio buttons lines can be drawn across the grid. This can help in counting distance between packets, specially when there are multiple packets with the same PID (hence same color).

Structure

For most transport streams the picture will show very little structure, but for example a DVB-H stream will clearly show the time slicing.

This is part of the DVB-H service. The time slices are easy to see.

Grid Filter

When we filter the example stream to show only the PMT fields, we see these are closely grouped together at almost constant distances.

This graph also uses the selected range from the filter, so you can analyze a selected part of the file.

This page was last modified on 4/08/2024