Moving picture encoding apparatus

摘要

An encoding circuit (1) encodes an input image. A thinning-out decision unit (2) determines whether or not a picture needs to be thinned out. A dummy picture storage device (4) stores a dummy picture. A dummy picture is encoded data in which all the blocks refer to the same picture, motion vectors of all the blocks are zero, and none of the blocks has prediction residual information. A reference picture selection unit (5) selects a reference picture from among a plurality of referenceable pictures. A header generating unit (7) generates a header to be added to a dummy picture. In the header, the selected reference picture is assigned to an index specifying a reference picture for the dummy picture.

主权项

1. A moving picture encoding apparatus for encoding a moving picture utilizing motion compensation, the moving picture encoding apparatus comprising:
a storage configured to store encoded data of a dummy picture in which each block has the same index to identify a picture to be referred to by the dummy picture; a selector configured to select a picture to be referred to by an encoding target picture from among a plurality of referenceable pictures that can be referred to by the encoding target picture; a header generator configured to generate a header including a reference picture list in which indexes to respectively identify the plurality of referenceable pictures are listed in a specified order; and output means for adding the header generated by the header generator to the encoded data of the dummy picture and outputting the encoded data when the encoding target picture is thinned out, wherein when the index to identify the picture selected by the selector is different from the index to identify the picture to be referred to by the dummy picture, the header generator reorders the indexes in the reference picture list such that the index to identify the picture to be referred to by the dummy picture is allocated to the picture selected by the selector.