Recording medium, reproducing apparatus, and reproducing method
AssigneeMitsubishi Electric Corporation
InventorsMasaaki Shimada, Tomoaki Ryu, Kazuhiko Nakane
Life of this patent
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Abstract
In a recording medium on which is recorded a multiplexed stream including a plurality of first packets (V_main) constituting a first I-picture in a first video stream and a plurality of second packets (V_sub) constituting a second I-picture in a second video stream, information for identifying the first I-picture and information for identifying the second I-picture are recorded on the medium. A recording medium can thereby be obtained that enables the rapid detection, from a small amount of information, of a particular picture included in a stream such as a TS in which multiple content streams are multiplexed.
Claims5
A video information encoding method for encoding video information for Picture In Picture, comprising:
- encoding a video information stream comprising a plurality of video information units each of which includes an intra coded I-picture, a predictive coded P-picture and a bidirectionally-predictive coded B-picture, said video information stream including a first video information stream representing a primary video sequence, a second video information stream representing secondary video sequence which is presented with said primary video sequence, said first video information stream and said second video information stream including a plurality of packets;
- and
- creating an access point map which includes access point information and I-picture size information of said first video information stream and said second video information stream,
- wherein said access point information indicates the number of each said packets.
A recording method for recording video information for Picture In Picture on a medium, comprising:
- recording a video information stream comprising a plurality of video information units each of which includes an intra coded I-picture, a predictive coded P-picture and a bidirectionally-predictive coded B-picture, said video information stream including a first video information stream representing a primary video sequence, a second video information stream representing secondary video sequence which is presented with said primary video sequence, said first video information stream and said second video information stream including a plurality of packets;
- and
- recording an access point map which includes access point information and I-picture size information of said first video information stream and said second video information stream,
- wherein said access point information indicates the number of each said packets.
A non-transitory computer readable medium containing video information for Picture In Picture, comprising:
- a video information stream comprising a plurality of video information units each of which includes an intra coded I-picture, a predictive coded P-picture and a bidirectionally-predictive coded B-picture, said video information stream including a first video information stream representing a primary video sequence, a second video information stream representing secondary video sequence which is presented with said primary video sequence, said first video information stream and said second video information stream including a plurality of packets;
- and
- an access point map including access point information and I-picture size information of said first video information stream and said second video information stream,
- wherein said access point information indicates the number of each said packets,
- said access point map being a reference for accessing information pertaining to said first video stream and said second video stream in order to identify said representative I-picture of said first video stream and said second video stream in said multiplexed transport stream for playback.
Dependencies are inferred from the claim text.