Audio/video bit stream interleaving method for variable bit rate

Details Audio/video bit stream interleaving method for variable bit rate Audio/video bit stream interleaving method for variable bit rate

1995-12-22

1998-05-26

Safourek, Benedict V.

Multiplex communications

Communication techniques for information carried in plural...

Assembly or disassembly of messages having address headers

370509, 370538, 348423, H04N 750

Patent

active

057578028

ABSTRACT:
In the data encoding/decoding method according to the MPEG (Moving picture Expert Group) system, the audio/video bit stream interleaving method includes a first step of determining as to whether a PTS (Presentation Time Stamp) is present in audio/video packets so as to estimate the PTS from a preceding packet in the absence of the PTS, a second step of comparing the audio packet with the video paket in the PTS to output one of the packets which has smaller PTS value, and a third step of multiplexing the audio or video packet to form an audio/video bit stream, so that the decoder is prevented from the overflow or underflow pheonomena in consideration of the decoding time within the audio/video packet data decoding time.

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A.J. Wasilewski The MPEG-2 Systems Specification: Bluprint For Netwotklnteroperability, Senior Staff Engineer, Scientific Atlanta, Jan. 3, 1904.

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