Embedded ancillary data processing method and system with program duration alteration

摘要: The total running time of an onginal program signal, with related embedded ancillary data is altered to generate a time-shortened (or time-lengthened) signal. video signal packets are subject separate processing without decoding payload text strings and caption information. portion the original processed by deleting adding) individual frames on manual, periodic or automatic basis. As fields removed added), corresponding text-based information temporarily stored analyzed such that can be reassembled within time-altered program. Embedded circuitry determines type subtitle (HD/SD) location Vertical Ancillary (VANC) Horizontal (HANC) for coupled All captions, subtitles associated preserved automatically aligned