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Formats that start with “Internal” in their names are internally defined formats that are used as intermediate steps. An example of this is the “Internal Thumbnail” format, which is, for example, used when creating video thumbnails. In particular, to generate a quality rendition of an image format for a video, a quality rendition of the internal format “Internal Thumbnail” is first generated, and then a quality rendition of the targeted image format is created.
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