Patent ID: 7856062
Filing Date: 2010-12-21
Classification: G11B,H04N

Abstract:
1. A multiplexing apparatus for multiplexing coded streams with other information, the coded streams including coded pictures on a per randomly-accessible access unit basis, said multiplexing apparatus comprising: a first determining unit configured to determine delay amounts in two access units to be decoded sequentially, which are a first access unit and a second access unit, in the coded streams such that the delay amounts in the two access units become equal to each other in the case where the two access units are access units each having a different angle and are decoded sequentially changing angles from an angle of the first access unit which is a switching source to an angle of the second access unit which is a switching destination, the delay amounts each being a time lag from a decoding time of a top picture in decoding order to a display time of a top picture in display order, the second access unit being selected from among access units which have identical playback start times and identical playback end times in the coded streams; a generating unit configured to code the pictures to be included in the two access units and generate the coded streams according to the delay amounts determined by said first determining unit; and a multiplexing unit configured to multiplex the coded streams generated by said generating unit and the other information, wherein the other information includes a flag indicating whether or not the two access units can be connected to each other seamlessly, and the flag is determined depending on whether or not the delay amounts in the two access units are equal to each other, and wherein said generating unit is further configured to code an Instantaneous Decoder Refresh (IDR) picture, the IDR picture being a picture to be decoded first in the second access unit, and to be decoded immediately after the first access unit.