Patent ID: 8934757
Filing Date: 2015-01-13
Classification: H04N

Abstract:
1. A content distribution system including a distribution server that distributes a program stream pertaining to program content and a playback apparatus that decodes and plays back the program stream, the distribution server and the playback apparatus being connected via a network, the distribution server comprising: the playback apparatus comprising: a second determination unit that determines, by using the reference/non-reference flag, whether or not reference is to be made to the pieces of identification information associated with the video frames, the determination being performed prior to decoding of the program stream and when determined by the first determination unit that the program state flag indicates that one or more of the video frames included in the program stream is a 3D video frame; and the program state flag and the reference/non-reference flag are contained in a playback control file that is separate from the program stream, the distribution unit distributes the program state flag and the reference/non-reference flag by distributing the playback control file, the distribution unit distributing the program state flag and the reference/non-reference flag before distributing the program stream, and the reception unit receives the program state flag and the reference/non-reference flag by receiving the playback control file, the reception unit receiving the program state flag and the reference/non-reference flag before receiving the program stream.