| 摘要 |
In accordance with certain embodiments consistent with the present invention , a method providing alternate digital audio and video content in a segment of content containing compressed primary audio and encoded primary video involv es inserting blank audio in an alternate audio track between segments of alternate audio; inserting back video in an alternate video track between segments of alternate video; synchronizing the alternate audio track to a master timeline; synchronizing the alternate video track to the master timeline; compressing the alternate audio track; compressing the alternate video track; trimming the blank audio from the compressed alternate audio track; trimming the black video from the compressed alternate video track; synchronizing the trimmed compressed alternate audio to locate the trimmed compressed alternate audio temporally with the primary compressed audio; synchronizing the trimmed compressed alternate video to locate the trimmed compressed alternate video temporally with the primary encoded video; and multiplexing the trimmed compressed alternate audio and the trimmed compress ed alternate video with the primary compressed audio and the primary encoded video.
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