Picture editing apparatus and method using virtual buffer estima

Details Picture editing apparatus and method using virtual buffer estima Picture editing apparatus and method using virtual buffer estima

1998-04-03

2000-10-24

Nguyen, Huy

Motion video signal processing for recording or reproducing

Local trick play processing

With randomly accessible medium

386111, H04N 576

Patent

active

061379468

ABSTRACT:
A bit stream C is composed in editing work at a high processing speed wherein at least a portion of a bit stream A resulting from MPEG encoding is concatenated with at least a portion of a bit stream B also resulting from MPEG encoding. The amount of data D.sub.A at an end point A.sub.out of a scene A' of the bit stream A and the amount of data D.sub.B at a start point B.sub.in of a scene B' of the bit stream B to be accumulated in a VBV buffer are calculated. The difference between D.sub.A and D.sub.B is used for adjusting the amount of data at a portion of the bit stream C which corresponds to a point of junction between the bit streams A and B. If D.sub.A >D.sub.B, stuffing code is added to a picture at the end point A.sub.out. If D.sub.A <D.sub.B, on the other hand, skipped P pictures are inserted into a location after the picture at the end point A.sub.out.

REFERENCES:
patent: 5534944 (1996-07-01), Egawa et al.
patent: 5706386 (1998-01-01), Miyazawa
patent: 5917830 (1999-06-01), Chen et al.

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