METHODS AND SYSTEMS FOR SYNCHRONIZING STREAMING VIDEO SEGMENTS

原文（中文）

An aspect of the disclosure is related to methods and systems configured to detect and correct misalignments of segments in corresponding renditions of video content. A video is transcoded to generate renditions at respective different bit rates and/or resolutions, wherein a given rendition comprises a plurality of segments, the segments comprising a plurality of frames. First closed caption text is accessed for a first frame of a first segment of a first rendition. Second closed caption text for a first frame of a first segment of a second rendition is accessed. A determination is made as to whether the first closed caption text matches the second closed caption text. If they fail to match, the first segment of the second rendition is re-rendered. The re-rendered first segment of the second rendition is streamed over a network to a client device.