| 摘要 |
<p>An apparatus comprises a storage device including a container track comprising samples and a media sequence comprising frames, a first frame of which corresponds to a region defined in the container track, and a processing unit coupled to the storage device, which determines a merged sample corresponding to the region by combining a first sample and a second sample. A method for determining information in a container track corresponding to a particular time, wherein the container track includes samples, comprises: (a) adding a first region of a first sample to a merged sample; (b) identifying a second region of a second sample succeeding the first sample; (c) adding the second region to the merged sample, provided the first region does not correspond to the second region, otherwise replacing the first region with the second region; and (d) providing the merged sample as the information corresponding to the particular time. <IMAGE></p> |
