System and method for data insertion in video stream

摘要

A system for video processing includes a video director, a video encoder, and a picture-in-picture inserter. The video director is configured to generate an edit signal. The video encoder is configured responsively to the edit signal to encode a first area of a video frame of a main video as a first encoded data set, to encode a second area of the video frame as a second encoded data set, and to generate a compressed main video including the first and second encoded data sets. The picture-in-picture (PIP) inserter is configured, responsively to the compressed main video and to a compressed secondary video including a third encoded data set, to generate a compressed PIP video including the first encoded data set and the third encoded data set, and to transmit the compressed PIP video for subsequent decoding.

主权项

1. A system for video processing, comprising:
a video director configured to generate compatible first and second edit signals; a main video encoder configured responsively to the first edit signal to generate a compressed main video stream, including main video control sets, main image slices, and “out” image slices; a secondary video encoder configured responsively to the second edit signal to generate a compressed secondary video stream including secondary video control sets and “insert” image slices; and a picture-in-picture (PIP) inserter configured, responsively to receiving the compressed main video stream and the compressed secondary video stream, to copy the compressed main video stream to a compressed PIP video stream until reaching one of the “out” image slices, to scan the compressed secondary video stream until reaching a corresponding slice of the “insert” image slices, and to copy the corresponding slice of the “insert” image slices to the compressed PIP video stream.