| 摘要 |
A device may include an interface and one or more processors. The interface may obtain, from a content source via a network, a playlist file including a plurality of content file identifiers corresponding to a plurality of content files associated with alternate encodings of a content stream. The one or more processors may determine that the alternate encodings correspond to different logical divisions of an image area associated with the content stream, forward, to a client device, the playlist file for selection of one logical division of the different logical divisions, and request, from the content source via the communication interface and responsive to the forwarding, one or more content file, of the plurality of content files, associated with a particular encoding of the alternate encodings.
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