| 摘要 |
In one embodiment, a method that includes providing, on a display, an object configured to be moved by a user along an axis, associating a plurality of predefined layouts with respective intervals along the axis, detecting a user action on the object indicating a position on the axis, and composing, in response to the detecting of the user action, a composite video signal using a layout, of the plurality of predefined layouts, associated with an interval among the intervals within which the position is lying.
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