Systems and methods for just in time transcoding of video on demand

A computerized program product stored on a non-transitory memory, that when executed by one or more processors comprised in a computer system performs:

• generating a computing context for a first video segment by:
• setting a predictable media segment size;
• computing a first predictable playback time stamp as a function of the predictable media segment size and a derived time offset value;
• for the first video segment, generating a prior audio segment including a priming portion and discard sample portion, and a real audio segment including playback samples wherein the prior audio segment precedes a corresponding real audio segment,
• transcoding the first video segment;
• and
• generating a computing context for a second video segment by:
• using the predictable media segment size and the derived time offset value, computing a second predictable playback time stamp;
• and
• for the second video segment, generating a prior audio segment including a priming portion and discard sample portion, and a real audio segment including playback samples, wherein the prior audio segment precedes the real audio segment;
• and
• transcoding the second video segment;
• wherein at least a portion of the prior audio segment and real audio segment of the first video segment is simultaneously encoded with at least a portion of the prior audio segment and real audio segment of the second video segment.