Abstract: An AV stream, as an entity of contents, is managed by ClipInformation. The reproduction of the AV stream is managed by PlayList. The attribute information of the AV stream is recorded in the ClipInformation, whereby the attribute information may include address information corresponding to the discontinuous point in the AV stream, information correlating the time information in the AV stream and the address information, and the time information corresponding to a characteristic picture in the AV stream. This enables a preset mark to be retrieved promptly.

Abstract: An information processing apparatus comprises an extracting means for extracting main information including first copy control information and auxiliary information representing attributes of the main information from input information; a first generating means for generating second copy control information based on the auxiliary information extracted by the extracting means; and an adding means for adding the second copy control information generated by the first generating means to the main information extracted by the extracting means. As a result, even an apparatus not capable of analyzing first copy control information is capable of executing copy control.

Abstract: A multiplexing apparatus for multiplexing audio data into transport stream (TS) packets includes a first encoding section encoding the audio data by a first encoding method; a second encoding section encoding the audio data by a second encoding method, which is a variable-length encoding method and which differs from the first encoding method, for attaching a timing value indicating a timing used when audio data is decoded in units of predetermined audio data; a packetization section packetizing the audio data encoded by the first encoding section and the audio data encoded by the second encoding section into TS packets and for attaching the same ID to a plurality of packetized TS packets; a determination section determining a TS packet to be multiplexed from among the plurality of TS packets packetized by the packetization section; and a multiplexing section multiplexing the TS packet determined by the determination section.

Abstract: Control data subsequent to an extension start code is stored in an encoding apparatus when transmitted after each header data of a video sequence layer, a GOP layer, a picture layer and a slice layer. And in transmission of the next header data, the content of the control data subsequent to the extension start code in the header data to be transmitted is compared with the content of the preceding header data of the same layer stored in the encoding apparatus. And if the result of such comparison signifies that the compared data are mutually the same, neither the extension start code nor the subsequent control data is transmitted. At the reception of each header data of the video sequence layer, the GOP layer, the picture layer and the slice layer, the control data decoded subsequently to the extension start code is stored in the decoding apparatus.

Abstract: The present invention relates to a reproduction apparatus by which a user can easily search for a desired scene of content data, a reproduction method, a recording apparatus, a recording method, a recording medium, a program storage medium, and a program. Information used for a search is recorded together with content data on an optical disc. The data to be recorded on the optical disc contains at least content data main body, scene description information for displaying a predetermined menu screen on an external display apparatus in the reproduction apparatus.

Abstract: An encoded bit stream having a frame rate of 24 Hz or 23.976 Hz and a progressive format for both NTSC and PAL is recorded on a recording medium. An encoded stream reproduced from the recording medium is supplied to a decoder 20. In the decoder 20, the encoded stream is decoded and 24 p or 23.976 p video is obtained. A video converting portion 25 converts the reproduced video into a display video in accordance with the display format of a monitor 26. For the NTSC range, 29.97 i or 59.94 p display format can be used. For the PAL range, 25 i or 50 p display format can be used.

Abstract: An input video signal is coded by a 1-pass type coding system highly efficiently by taking the proportions of the components of the input image. The coding difficulty level computation circuit 33 determines the coding difficulty level d of the input moving image signal S1 and sends it to the amount of allocated bits computation circuit/controller 34. The amount of allocated bits computation circuit/controller 34 determines a reference value of amount of allocated coding bits on the basis of the coding difficulty level d and, when shifting the reference value to the actual amount of allocated coding bits b_x, it stores part of the sum of the amounts of allocated bits a per unit time for a certain period of time as virtual buffer in advance and the actual reference value of the amount of allocated coding bits is obtained by dividing the sum of the amounts of allocated coding bits per unit time less the part stored as virtual buffer by said period of time.

Abstract: In DVRVolume( ), there is stated the information pertinent to the totality of the information recorded in a disc. The information recorded in the disc can be confirmed on the basis of this description. In TableOfPlayList( ), there is stated the information usable in reproducing the information recorded in the disc. Using this description, the desired information can be retrieved extremely readily. So, the information recorded in the disc or desired information can be confirmed extremely readily.

Abstract: Control data subsequent to an extension start code is stored in an encoding apparatus when transmitted after each header data of a video sequence layer, a GOP layer, a picture layer and a slice layer. And in transmission of the next header data, the content of the control data subsequent to the extension start code in the header data to be transmitted is compared with the content of the preceding header data of the same layer stored in the encoding apparatus. And if the result of such comparison signifies that the compared data are mutually the same, neither the extension start code nor the subsequent control data is transmitted. At the reception of each header data of the video sequence layer, the GOP layer, the picture layer and the slice layer, the control data decoded subsequently to the extension start code is stored in the decoding apparatus.

Abstract: For a large capacity recording medium, a user interface having high flexibility and enriched representation is accomplished. A flag that represents whether a play item has a multiple angle structure of which the play item is reproduced with a plurality of angles is described. In addition, a flag that represents whether the beginning of each decode unit is an angle switchable point is described. In a seamless multiple angle structure, the current angle can be switched without need to increase the number of interleave units. In a nonseamless multiple angle structure, with the flag, in a predetermined region on the rear end side of each angle, the current angle is prohibited from being switched. Thus, when a play item exits from the multiple angle, discontinuity in the reproduction can be prevented. In addition, with a flag that represents whether a sub play item should be reproduced not in synchronization with a main path, the sub play item of only audio data can be used as a BGM.

Abstract: Control data subsequent to an extension start code is stored in an encoding apparatus when transmitted after each header data of a video sequence layer, a GOP layer, a picture layer and a slice layer. And in transmission of the next header data, the content of the control data subsequent to the extension start code in the header data to be transmitted is compared with the content of the preceding header data of the same layer stored in the encoding apparatus. And if the result of such comparison signifies that the compared data are mutually the same, neither the extension start code nor the subsequent control data is transmitted. At the reception of each header data of the video sequence layer, the GOP layer, the picture layer and the slice layer, the control data decoded subsequently to the extension start code is stored in the decoding apparatus.

Abstract: A data processing apparatus receives files reproduced from a recording medium, the recording medium having recorded thereon an AV stream file and a PlayList file specifying a method of reproducing the AV stream file. The PlayList file is received. The received PlayList file and additional information associated with the PlayList file are recorded to a management information file for managing the PlayList file.

Abstract: Control data subsequent to an extension start code is stored in an encoding apparatus when transmitted after each header data of a video sequence layer, a GOP layer, a picture layer and a slice layer. And in transmission of the next header data, the content of the control data subsequent to the extension start code in the header data to be transmitted is compared with the content of the preceding header data of the same layer stored in the encoding apparatus. And if the result of such comparison signifies that the compared data are mutually the same, neither the extension start code nor the subsequent control data is transmitted. At the reception of each header data of the video sequence layer, the GOP layer, the picture layer and the slice layer, the control data decoded subsequently to the extension start code is stored in the decoding apparatus.

Abstract: A video information recording apparatus includes a first obtaining unit operable to obtain video information to be recorded; a second obtaining unit operable to obtain thumbnail picture information to be recorded in correspondence with the video information; an encrypting unit operable to encrypt the thumbnail picture information; and a recording unit operable to record the video information and the encrypted thumbnail picture information onto a recording medium.

Abstract: A data transmitting device and method capable of properly managing the content of data recorded on a recording medium and the reproduced information. Clips (a clip information file and a clip AV stream file) and a play list file are recorded on a recording medium or a copy source. The play list and clip files are transferred to a recording medium or a copy destination from the copy source recording medium through an IEEEE digital bus and copied. The arrival time stamp of the TP_extra_header of each source packet of the copied clip AV stream file is the same as that of the copy source. The clip information file and the play list file corresponding to the copied clip AV stream file are also copied to the copy destination. The invention can be applied to, for example, a recorder or reproducer for processing an AV stream.

Abstract: The present invention relates to a multiplexer, a multiplexing method, a program, and a recording medium, whereby TS packets encoded with different encoding methods can be multiplexed. In the event of multiplexing each TS packet of a BS audio TS 173 wherein a BS audio ES 171 encoded with a first encoder is subjected to TS packetizing, and each TS packet of an HQ audio TS 183 wherein an HQ audio ES 181 encoded with a second encoder is subjected to TS packetizing, a control unit assumes a first virtual decoder capable of decoding a BS audio ES alone, and a second virtual decoder capable of decoding an HQ audio ES alone, and determines TS packets to be multiplexed based on an elementary buffer of each virtual decoder, a data transfer rate for the elementary buffer, and multiplexing constraints for random access. The present invention can be applied to a multiplexer configured to multiplex TS packets.

Abstract: A data-recording/reproducing apparatus and method, that determine a reproduction position with high degree of reliability for data recorded on an information-recording medium even after the data is edited. From a process to edit an AV stream file, a DV data recording/reproducing apparatus splits a DVF-sequence into sequences including consecutive frames. When data is deleted in sector units in the edit process, pieces of data included in deleted frames are left at the beginning and end of each of the sequences. The DV data recording/reproducing apparatus records data representing the length of the data left at the head and the end of the sequences, data representing a frame number assigned to a frame located at the head of the sequences, and data representing the number of frames included in the sequences, on a disc used as the information-recording medium, for example an optical disc.

Abstract: 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.

Abstract: The present invention relates to a data structure, an information processing apparatus, an information processing method, a transmitting apparatus, a transmitting method, a multiplexing apparatus, a multiplexing method, and a program that ensure a receiving side to decode hierarchically coded audio streams each including a base stream and an extension stream. A TS packetizing section 537 packetizes each of base and extension audio streams into TS packets. A control section 535 controls TS packet transmitting timing. At this time, the control section 535 control the TS packet transmitting timing with timing that an elementary buffer of a virtual receiver is prevented from overflowing and underflowing. The present invention is applicable to a multiplexing apparatus that multiplexes TS packets.

Abstract: An information processing apparatus includes a generating unit for generating ClipMark formed by a mark specifying a characteristic picture extracted from an input AV stream, as management information for supervising the AV stream, and for generating PlayListMark, formed by marks pointing to a picture optionally specified by a user, from a reproduction domain corresponding to the PlayList defining the combination of preset domains in the AV stream, and a recording unit for recording the ClipMark and PlayListMark as respective independent tables on a recording medium. With the information processing apparatus, it is possible to access a desired location of an AV stream promptly and reliably.