Encoder system level buffer management

Details Encoder system level buffer management Encoder system level buffer management

1995-11-30

1999-06-15

Shah, Kamini

Television

Special applications

Simulator

348512, 370506, 358426, H04N 576, H04Q 1104

Patent

active

059130318

ABSTRACT:
A system is provided for encoding clips of video data for multiplexing into a system level stream with associated audio and control data. By deriving a relationship between encoder and decoder buffer occupancy levels, and taking into account buffer fill rate, the multiplexer targets a starting occupancy for the video system layer buffer (the MPEG STD) at that for the decoders video buffer (the MPEG VBV). With knowledge of fill rate, the decoder buffer need only be filled to a predetermined level prior to reading out clips for decoding, rather than filling the buffer completely, and seamless joining of video clips can then be simply achieved. The technique has particular application to interactive multimedia systems where continuous display is required.

REFERENCES:
patent: 5241383 (1993-08-01), Chen et al.
patent: 5619341 (1997-04-01), Auyeung et al.
patent: 5793431 (1998-08-01), Blanchard
PHB 33,950, U.S. Application No. 08/565,697, filed Nov. 30, 1995, pending.

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