| 摘要 |
A coding device (Dl), for an electronic equipment, comprises coding means (CM) for encoding movie data into a compressed scalable bitstream (SVB), starting from at least one interlaced base layer (BL) comprising interlaced fields, amongst which some are duplicated fields associated to a field repeat flag, and at least one progressive enhancement layer (EL) comprising progressive frames. These coding means are more precisely arranged i) to constitute a prediction layer (PL) comprising prediction frames defined from first and second fields of the interlaced base layer (BL), except those containing a duplicated field, and ii) to encode the progressive frames of each progressive enhancement layer (EL) by computing the difference between each prediction frame and the corresponding progressive frame, while taking into account the field repeat flags associated to the corresponding duplicated fields of the interlaced base layer (BL), in order to handle the missing prediction frames. |
