Patent ID: 8843957
Filing Date: 2014-09-23
Classification: H04N

Abstract:
1. A method comprising: locating, in a source signal comprising a predetermined frame timing, a source signal content insertion trigger; determining a trigger identifier for the source signal content insertion trigger, the trigger identifier specifying replacement content for an output signal; determining a trigger position in the source signal where the source signal content insertion trigger is located; storing the trigger identifier and the trigger position in a content trigger table; transcoding the source signal, at a transcoding rate that does not meet the predetermined frame timing of the source signal, to obtain the output signal, wherein the transcoding rate varies for a first frame and a second frame in the source signal based on a difference in complexity in the first and second frames in the source signal; keeping a framecount of frames output during the transcoding of the source signal; introducing a delay into the output signal to accommodate for a processing time to frame accurately prepare the output signal; locating, in the output signal, the trigger position by comparing the framecount against the trigger position in the content trigger table; and inserting into the output signal, at the trigger position, an output signal content insertion trigger.