摘要:
There is provided an apparatus and a method determining a data arrangement that guarantees seamless reproduction even in a case of occurrence of a jump in a browsable slide show. An allowable jump range between an image data clip and an audio data clip required for data reading in the browsable slide show in which a consecutive reproduction processing of a still image and an audio reproduction processing are performed in parallel is determined so as to determine arrangement conditions of data to be stored in an information recording medium on the basis of the determined allowable jump range. This configuration enables the browsable slide show to be carried out as a seamless reproduction processing without any data discontinuity. Furthermore, it becomes possible to provide a plurality of combinations of readout rates of the audio data and image data.
摘要:
An encoder to encode video streams representing a moving picture is provided whose video encoder calculates a bit storage quantity an STD video buffer should have when input of a stream ending with a first picture to the STD video buffer ends, calculates an initial bit storage quantity of a second picture of a stream concatenated to the end of the first picture and starting with the second picture, in a VBV buffer, based on the calculated bit storage quantity of the STD buffer, and encodes the stream based on the bit storage quantity. The video encoder further calculates a bit storage quantity of the STD video buffer, for decoding a picture of the stream in the STD video buffer, calculates, based on the calculated bit storage quantity, a bit storage quantity the VBV buffer should have for ending decoding of a fourth picture of a second stream concatenated to the beginning of a third picture and ending with the fourth picture, and encodes the stream based on the calculated bit storage quantity. With such encoding, a part of video streams can be re-coded without referencing to information indicative of an initial status of a video buffer when editing the video streams.
摘要:
To provide a configuration in which a unit classification number corresponding to a content playback path is set based on various units. A unit classification number defining a playback path of content including encrypted data having different variations generated by encrypting a segment portion which forms the content by using a plurality of segment keys and encrypted content generated by encrypting a non-segment portion by a unit key is set based on various units, such as a content management unit and an index. In a CPS unit key file storing key generating information concerning CPS units as content management units, settings of unit classification numbers are indicated. Based on the CPS unit key file, a unit classification number to which content to be played back belongs can be obtained.
摘要:
An information recording medium manufacturing method includes the steps of: determining an encryption mode of each sector, which serves as an encrypt processing unit; generating encrypted data having different variations by using a plurality of cryptographic keys for a segment portion; generating encrypted data by using a single cryptographic key for a non-segment portion; and recording the encrypted data. In determining the encryption mode, a cryptographic key for each sector is specified on the basis of an auxiliary file including determination information indicating whether each sector is data of a segment portion or data of a non-segment portion and identification information for identifying a segment and a variation associated with the sector if the sector is found to be the data of a segment portion. In generating the encrypted data for the segment portion or for the non-segment portion, the encrypted data is generated by using the specified cryptographic key.
摘要:
There is provided an apparatus and a method determining a data arrangement that guarantees seamless reproduction even in a case of occurrence of a jump in a browsable slide show. An allowable jump range between an image data clip and an audio data clip required for data reading in the browsable slide show in which a consecutive reproduction processing of a still image and an audio reproduction processing are performed in parallel is determined so as to determine arrangement conditions of data to be stored in an information recording medium on the basis of the determined allowable jump range. This configuration enables the browsable slide show to be carried out as a seamless reproduction processing without any data discontinuity. Furthermore, it becomes possible to provide a plurality of combinations of readout rates of the audio data and image data.
摘要:
There is provided an apparatus and a method determining a data arrangement that guarantees seamless reproduction even in a case of occurrence of a jump in a browsable slide show. An allowable jump range between an image data clip and an audio data clip required for data reading in the browsable slide show in which a consecutive reproduction processing of a still image and an audio reproduction processing are performed in parallel is determined so as to determine arrangement conditions of data to be stored in an information recording medium on the basis of the determined allowable jump range. This configuration enables the browsable slide show to be carried out as a seamless reproduction processing without any data discontinuity. Furthermore, it becomes possible to provide a plurality of combinations of readout rates of the audio data and image data.
摘要:
A configuration for achieving efficient content verification processing based on hash values is provided. Hash values of hash units set as segmented data of a content stored on an information storage medium are recorded in a content hash table and are stored on the information storage medium together with the content. An information processing apparatus for executing content playback executes hash-value comparison processing based on one or more randomly selected hash values. Regardless of the data amount of content, the configuration can perform hash-value determination and comparison processing based on hash units having a small amount of data, so that user equipment for executing content playback can perform efficient content verification.
摘要:
An information processing apparatus plays back content including a plurality of divided playback zones, a playlist being associated with each of the divided playback zones. The information processing apparatus includes a playlist selection information obtaining unit obtaining a plurality of pieces of playlist selection information including information concerning a playback sequence of play items which are set as content playback unit data, the plurality of pieces of playlist selection information being obtained in accordance with the number of playback zones included in the content, a playlist selector selecting a plurality of playlists on the basis of the plurality of pieces of playlist selection information obtained by the playlist selection information obtaining unit, a playlist integrating processor generating an integrated playlist by integrating the plurality of playlists selected by the playlist selector, and a content playback unit playing back the content on the basis of the integrated playlist.
摘要:
There is provided an apparatus and a method for generating record data, guaranteeing seamless playback even in a case of occurrence of a jump. In a multilayer disc having a plurality of recording layers, it is configured that an allowable range of an intra-layer jump and an inter-layer jump carried out in a playback processing of an information recording medium is determined and a required time for the intra-layer jump and the inter-layer jump is calculated on the basis of the determined allowable jump range information so as to determine a data configuration requirement such as an allowable minimum consecutive data size of data to be stored in the information recording medium on the basis of the calculated required jump time. With the present structure, seamless playback is made possible even in a case of occurrence of not only an intra-layer jump but also an inter-layer jump.
摘要:
A configuration for achieving efficient content verification processing based on hash values is provided. Hash values of hash units set as segmented data of a content stored on an information storage medium are recorded in a content hash table and are stored on the information storage medium together with the content. An information processing apparatus for executing content playback executes hash-value comparison processing based on one or more randomly selected hash values. Regardless of the data amount of content, the configuration can perform hash-value determination and comparison processing based on hash units having a small amount of data, so that user equipment for executing content playback can perform efficient content verification.