SYSTEM AND METHOD FOR MOTION PICTURE EXPERT GROUP (MPEG) TRANSPORT STREAM SPLICING

摘要

A rate adaptation system or method is used in a subsystem to splice new content into a live stream to form a spliced stream. The live stream comprises a first plurality of frames contained within a first plurality of packets, and the new content comprises a second plurality of frames contained within a second plurality of packets. The system or method monitors the first plurality of packets and increments a live stream frame count when a new frame is encountered within the first plurality of packets; monitors the second plurality of packets and increments a new content frame count when a new frame is encountered within the second plurality of packets; and determines when the live stream frame count is greater than the new content frame count by a predetermined amount and replaces the first plurality of packets with the second plurality of packets.

主权项

1. A rate adaptation module for use in a subsystem to splice new content into a live stream to form a spliced stream, the module comprising:
an input adaptation buffer receiving and storing therewithin the live stream and new content, the live stream comprising a first plurality of frames contained within a first plurality of packets, the new content comprising a second plurality of frames contained within a second plurality of packets; and a rate adaptation processor coupled to the input adaptation buffer, the rate adaptation processor monitoring the first plurality of packets and incrementing a live stream frame count when a new frame is encountered within the first plurality of packets, the rate adaptation processor monitoring the second plurality of packets and incrementing a new content frame count when a new frame is encountered within the second plurality of packets, the rate adaptation processor determining that the live stream frame count is greater than the new content frame count by a predetermined amount and replacing the first plurality of packets with the second plurality of packets.