BLANKING A PROGRAM CHAIN

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General

Blanking a Program Chain means the substitution of the cells belonging to the PGC by blank ones (simple and black stills). VobBlanker will use a blank cell with the video attributes of the VTS (resolution, standard & DAR)

However, if one cell is also used in another PGC, VobBlanker can act in three different ways:

A) First use of a shared cell

The first time that a cell is included in a PGC, the cell is not marked as reused, and VobBlanker will blank the cell.

So, all PGCs containing this cell will be affected.

B) Successive uses of a shared cell

In this case VobBlanker will not blank the cell. (Except if the first PGC including this cell is also marked as blank)

C) Cell based processing

In cellbased mode and in successive uses of a shared cell, VobBlanker creates a different VID/CID with a blank cell, so the cell will not be shared any more