Systems and methods for channel switching

摘要

Techniques for video encoding and decoding channel switch frames (CSF) to enable acquisition and re/synchronization of the video stream while preserving compression efficiency is provided. Systems 5 and methods to process multimedia data enabling channel switching are presented. The systems generate a CSF with one or more network adaptation layer (NAL) units as a random access point (RAP) frame. Back-to-back frames are transmitted which include the CSF and a non-RAP frame, each having the same frame ID number. DECODE BITSTREAM WITH PICTURES SF DETECTED. DECODE ACCORDING TO I-SLICES OR NAL UNIT PROTOCOL ICTUR-ES OF CH. 1010 BEFORE CSF IN OUTPUT YES ORDER? *Z DROP PICTURES ICTURES OF CH. +0N AFTER CSF IN OUTPUT ORDER? SET PICTURE BEFORE CSF AS NON-REFERENCE FRAME