Methods and systems for synchronizing streaming video segments

A computer implemented method, the method comprising:

• transcoding a video to generate a plurality of 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;
• accessing first closed caption text for a first frame of a first segment of a first rendition;
• accessing second closed caption text for a first frame of a first segment of a second rendition, wherein the first segment of the second rendition has a same segment position as the first segment of the first rendition, and wherein a position of the first frame of the first segment of the first rendition is a same position as the first frame of the first segment of the second rendition;
• determining whether the first closed caption text matches the second closed caption text;
• at least partly in response to determining that the first closed caption text fails to match the second closed caption text:
• causing the first segment of the second rendition to be re-rendered;
• and
• causing the re-rendered first segment of the second rendition to be streamed over a network to a client device.

Non-transitory computer readable memory having program instructions stored thereon that when executed by a computing device cause the computing device to perform operations comprising:

• transcode a video to generate a plurality of 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;
• access first closed caption text for a first frame of a first segment of a first rendition;
• access second closed caption text for a first frame of a first segment of a second rendition, wherein the first segment of the second rendition has a same segment position as the first segment of the first rendition, and wherein a position of the first frame of the first segment of the first rendition is a same position as the first frame of the first segment of the second rendition;
• determine whether the first closed caption text matches the second closed caption text;
• at least partly in response to determining that the first closed caption text fails to match the second closed caption text:
• cause the first segment of the second rendition to be re-rendered;
• and
• cause the re-rendered first segment of the second rendition to be streamed over a network to a client device;
• and
• at least partly in response to determining that the first closed caption text fails to match the second closed caption text:
• cause the first segment of the second rendition to be streamed over the network to the client device.