WO2003085976A1 - Support, dispositif et procede d'enregistrement d'informations, dispositif et procede d'enregistrement/reproduction d'informations, programme informatique de commande d'enregistrement ou de reproduction d'informations, et structure de donnees comprenant un signal de commande - Google Patents

Support, dispositif et procede d'enregistrement d'informations, dispositif et procede d'enregistrement/reproduction d'informations, programme informatique de commande d'enregistrement ou de reproduction d'informations, et structure de donnees comprenant un signal de commande Download PDF

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Publication number
WO2003085976A1
WO2003085976A1 PCT/JP2003/004451 JP0304451W WO03085976A1 WO 2003085976 A1 WO2003085976 A1 WO 2003085976A1 JP 0304451 W JP0304451 W JP 0304451W WO 03085976 A1 WO03085976 A1 WO 03085976A1
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WO
WIPO (PCT)
Prior art keywords
information
still image
recording
data
control information
Prior art date
Application number
PCT/JP2003/004451
Other languages
English (en)
Japanese (ja)
Inventor
Nobuyuki Takakuwa
Takeshi Koda
Tohru Kanegae
Masanori Nakahara
Takao Sawabe
Yasuko Fukuda
Original Assignee
Pioneer Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pioneer Corporation filed Critical Pioneer Corporation
Priority to AU2003236334A priority Critical patent/AU2003236334A1/en
Publication of WO2003085976A1 publication Critical patent/WO2003085976A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N1/32101—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/102—Programmed access in sequence to addressed parts of tracks of operating record carriers
    • G11B27/105—Programmed access in sequence to addressed parts of tracks of operating record carriers of operating discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/32—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
    • G11B27/327—Table of contents
    • G11B27/329—Table of contents on a disc [VTOC]
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • G11B2220/2562—DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N2201/3201—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
    • H04N2201/3225—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of data relating to an image, a page or a document
    • H04N2201/3242—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of data relating to an image, a page or a document of processing required or performed, e.g. for reproduction or before recording
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N2201/3201—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
    • H04N2201/3274—Storage or retrieval of prestored additional information
    • H04N2201/3277—The additional information being stored in the same storage device as the image data

Definitions

  • the present invention relates to an information recording medium, an information recording apparatus and method, an information reproducing apparatus and method, an information recording and reproducing apparatus and method, a computer program for recording or reproducing control, and a data structure including a control signal.
  • the present invention relates to an information recording medium such as a high-density optical disk capable of recording various types of information such as main video, audio, sub-video, and reproduction control information at a high density, an information recording apparatus for recording information on the information recording medium, and Method, information reproducing apparatus and method for reproducing information from the information recording medium, information recording / reproducing apparatus and method capable of both recording and reproduction, computer program for recording or reproduction control, and reproduction
  • the present invention relates to the technical field of a data structure including a control signal for control. Background art
  • DVDs have become popular as optical discs on which various information such as main video, audio, sub-video, and playback control information are recorded.
  • main video information video data
  • audio information audio data
  • sub-video information sub-picture data
  • playback control information navigation data
  • high-efficiency coding is performed.
  • MPEG2 Moving Picture Eperts Grouhase 2
  • the main video information contains data compressed according to the MPEG video format (IS013818-2) for one stream in one program stream.
  • audio information is recorded in multiple formats (ie, linear PCM, AC-3 and MPEG audio, etc.), and up to a total of eight streams can exist in one program stream.
  • the sub-picture information is defined by a bitmap and recorded by compression in a run-length format, and up to 32 streams can exist in one program stream.
  • the use of a program stream format allows the selection of multiple streams of selectable audio information (M, for example, for one movie, for one stream of main video information).
  • the present invention has been made in view of the above-described problems, and allows still image information having a relatively large data amount to be multiplex-recorded together with moving image information, audio information, and the like.
  • Information recording medium, information recording apparatus and method, information recording apparatus and method, information recording and reproducing apparatus and method, computer program for recording or reproduction control, and control for reproduction control while reproducing the still image information It is an object to provide a data structure including a signal.
  • the information recording medium of the present invention is designed so that an entire stream including a plurality of partial streams each composed of a series of content information is physically accessible.
  • An information recording medium that is multiplex-recorded in a packet unit, and is a logically accessible unit and stores object data including a plurality of buckets each including a packet for storing a fragment of the content information.
  • the multiplexing includes: an object data file to be stored; a reproduction sequence information file that stores reproduction sequence information that defines a reproduction sequence of the object data; and reproduction control information for controlling reproduction of the object data. Defining the correspondence between a plurality of buckets to be created and the plurality of partial streams.
  • An object information file for storing correspondence definition information wherein at least one of the plurality of partial streams includes still image information, which is one of the content information, and It is configured to include a plurality of packets each storing a fragment of still image control information for controlling display of still image information, and the corresponding definition information includes a plurality of packets each for the plurality of partial streams.
  • the packet includes address information relating to a packet that satisfies a predetermined condition among the packets, and further includes (i) a plurality of buckets constituting the at least one partial stream for the at least one partial stream.
  • the entire stream such as at least a part of the transport stream of the MPEG2 includes a plurality of partial streams such as the elementary stream.
  • the partial stream is composed of content information such as video information or sub-video information (for example, video data or sub-picture data) or audio information (for example, audio data), which constitutes a series of contents that can be reproduced by the information reproducing apparatus.
  • content information such as video information or sub-video information (for example, video data or sub-picture data) or audio information (for example, audio data), which constitutes a series of contents that can be reproduced by the information reproducing apparatus.
  • Be composed that is, in the present application, one “partial stream” is a single data array or information such as an elementary stream, such as a video stream, an audio stream, a sub-picture stream, etc., which form a series of contents. Points to an array.
  • one “whole stream” refers to a data array or information array in which a plurality of partial streams are bundled.
  • the entire stream may be a transport stream that is a bundle of m elementary streams (m is a natural number of 2 or more) in MPEG-2, and n ( ⁇ , N is a natural number not less than 2 and less than m).
  • the entire stream includes at least one partial stream (for example, a sub-picture stream) composed of still image information and still image control information.
  • the entire stream configured as described above is multiplex-recorded on the information recording medium in units of packets (for example, TS packets described later), which are units physically accessible by the information reproducing apparatus.
  • the object data file is a unit logically accessible by the information reproducing apparatus and stores object data composed of a plurality of packets each storing a fragment of content information.
  • the reproduction sequence information file stores reproduction sequence information (for example, play list information) that specifies a reproduction sequence of the object data stored in the object data file.
  • the object information file includes correspondence definition information that defines the correspondence between a plurality of multiplexed packets and a plurality of partial streams (for example, an ES map table described later and an ES_PID (ES Bucket I D), ES address information, or AU table).
  • correspondence definition information that defines the correspondence between a plurality of multiplexed packets and a plurality of partial streams (for example, an ES map table described later and an ES_PID (ES Bucket I D), ES address information, or AU table).
  • one or more desired partial streams of the entire stream can be selectively reproduced based on the correspondence definition information.
  • the reproduction is scheduled to be performed based on the reproduction sequence information. Can be executed in sequence.
  • the various information stored in the object information file and the reproduction sequence information file are not multiplexed on the information recording medium in the unit of the packet. Therefore, based on the reproduction control information and the reproduction sequence information, it is possible to relatively easily execute the reproduction of the object data in the information reproducing apparatus.
  • the correspondence definition information is, for each of a plurality of partial streams, an address relating to a packet that satisfies a predetermined condition among a plurality of packets (for example, a leading packet of only I-picture in the MPEG-2 standard). Contains information. Therefore, the data amount of the address information to be included in the correspondence definition information can be reduced compared to the case where the address information is unconditionally included in the correspondence definition information for all of a plurality of packets.
  • the correspondence definition information includes a “control information identification flag” and a “read identification flag” for a partial stream (for example, a sub-picture stream) related to still image information and still image control information.
  • the “control information identification flag” is a flag indicating whether or not the first bucket of a group of buckets storing still image control information (for example, SCP described later) exists in the entry section.
  • “Read identification flag” indicates whether or not it is necessary to read other still image control information existing in another entry section preceding the entry section.
  • the address information of the still image control information is not directly specified by referring to the corresponding definition information, but the entry section in which the address information exists is specified instead. Then, after the entry section in which the still image control information is present is specified, the multiplexed packets in the object file that are actually in the specified entry section are searched. This makes it possible to find out still image control information easily and quickly (for example, by finding its header, identifier, etc.).
  • the stillness within the entry section including the display start time If the presence of the image control information can be confirmed by the control information identification flag, the still image control information whose existence has been confirmed is nothing but one still image control information corresponding to the display start time. On the other hand, if the presence of the still image control information in the entry section including the display start time cannot be confirmed by the control information identification flag, for example, the front of the entry section (address or packet serial number is smaller) The control information identification flag in the entry section in the side) or in the rear (the side with the largest address or bucket serial number) is sequentially checked.
  • control information identification flag it is possible to specify a rough position of the still image control information to be acquired, that is, an entry section including this. Then, the still image information is searched in the specified entry section, and the corresponding still image information or the like is searched in the entry section or in the preceding other entry section to reproduce at the display start time. A still image to be reproduced can be efficiently reproduced.
  • the still image control information or the still image information that does not actually need to be read for the still image display is related to the display start time. May also be read. That is, for example, (i) the still image control information is not recorded in one entry section, (ii) the still image display is not performed in the entry section, and (iii) the still image to be read ahead beyond the entry section. If the three conditions that no information exists are satisfied, there is no need to actually read in for still image display. It is impossible to determine such a case using the control information identification flag described above.
  • the still image corresponding to the display start time is displayed. It is possible to determine whether or not it is necessary to read other still image control information existing in another entry section preceding the entry section in which the image control information exists.
  • the “read identification flag” is set to, for example, “1” when a read operation is required for one section of the entry where the still image control information is not recorded, and is set to “0” when it is not required. Is set to In addition, in the entry section in which the still image control information is recorded, the still image display is continued from the entry section one ahead. In this case, it is set to, for example, "1” as a case where a read operation is necessary. Otherwise, it is set to, for example, "0". In this way, in the case where the still image display is continued from the previous entry and one section, if the forward still image control information is obtained, the continued still image display cannot be actually performed. Conversely, if the still image control information in front is obtained according to the read identification flag as in the present invention, the continuous still image display can be actually performed.
  • address information of still image information composed of bitmap data or JPEG data is included in the corresponding definition information in frame units.
  • the data amount of address information to be included in the correspondence definition information can be further reduced.
  • the data amount for the address information is about five times as large as that of the main video or moving image (main picture). It becomes necessary.
  • the data amount of one entry point required for address information in the corresponding definition information is about 32 bits.
  • an “entry point” refers to a packet whose position is specified by ES address information.
  • the “entry section” refers to each section on the TS object specified by two adjacent packets in the arrangement of only the packets whose recording positions are specified by the ES address information, and is preferably Instead of describing between two consecutive numbers related to two buckets, it is described as between the display start times of the still image information related to the two packets. In this way, even if some packets are removed due to editing work, etc., and the serial numbers of the packets deviate from the beginning, there is no deviation between the display times, and therefore the entry Ward This is because there is no change in between. However, in an environment where such editing work or the like can be ignored, the entry section may be described as between two consecutive numbers related to the two packets.
  • “specifying the entry section” in the object data file executed at the time of reproduction is performed, for example, by setting the serial number to “0” or “1” in each object data file. Identify the address of the packet that defines each end of the entry section by the order of the packet from the reference packet (hereinafter referred to as “reference packet” as appropriate), such as the packet recorded in the I just need. Then, according to the specified address, it is possible to access a bucket having an arbitrary serial number in the object data file, that is, to access an arbitrary entry section. For example, such serial numbers start with the serial number “0” of the reference packet in the object data file at the time of multiplex recording, and continue in ascending order according to the recording order.
  • the packet address mentioned here may be a physical address, but is more generally a logical address, and the actual physical address is uniquely identified from the logical address by the management of the file system. Of the nature.
  • information such as still image information and still image control information is included in one entry section or located in the entry section ⁇
  • the header packet storing the information is also included in the entry section.
  • the position of the still image information or the still image control information or the like usually means the position of the first packet (SPD or SCP described later) unless otherwise specified.
  • the still image information included as at least one partial stream (for example, a sub-picture stream) in the entire stream can be used together with other main video information and audio information or alone. It can be properly reproduced based on the still image control information included in one partial stream.
  • time search, chapter search Still image playback can be performed even when performing special playback such as touch, fast forward, and rewind, that is, when starting playback from an arbitrary time.
  • still image information such as a bitmap or JPEG having a relatively large amount of data can be efficiently reproduced together with moving image information and audio information in any case. The increase has been effectively suppressed.
  • the entire stream in the present invention may include two or more partial streams (that is, video streams) including main video information as content information.
  • the entire stream is composed of a partial stream including main video information as content information, and a corresponding partial stream including sub-video information (that is, a sub-picture stream) and a partial stream including audio information.
  • a stream ie, an audio stream).
  • the correspondence definition information includes, in addition to the control information identification flag and the read identification flag, a head of a group of packets including the still image information in the entry section. Includes a still image information identification flag that indicates whether a packet exists.
  • the correspondence definition information includes, for a partial stream (for example, a sub-picture stream) related to the still image information and the still image control information, a still image in addition to the control information identification flag and the read identification flag.
  • an image information identification flag is a flag indicating whether or not a leading packet (for example, an SPD described later) of a group of packets storing still image information exists in the entry section. Therefore, at the time of reproduction, the address information of the still image information is not directly specified by referring to the corresponding definition information, but the entry section in which they exist is specified instead.
  • the multiplexed buckets in the object file, which are in the specified entry section, are actually searched.
  • Still image information can be found easily and quickly (for example, by finding its header, identifier, etc.).
  • the address of the first bucket of a group of packets storing still image control information for controlling the i-th still image information is i + A packet storing the still image information and the still image control information such that the address is smaller than the address of the first bucket of a group of packets storing the still image control information for controlling the first still image information. May be arranged.
  • the entry from the entry section including the reproduction start time in the corresponding definition information to the reproduction time axis (Ii) specify the still image information and the still image control information whose presence is indicated by referring to the still image information identification flag or the control information identification flag by going back one section at a time. If object 1 is searched for and read in the corresponding entry section in the data file, it means that the still image information and still image control information necessary for still image playback after the display start time have been read. For example, at some point after the start of playback, a situation in which still image information or still image control information that has been recorded ahead of the playback time axis and has not yet been read is needed for still image playback Hardly occurs.
  • position information indicating the recording position of the still image information to be controlled is added to the still image control information, for example, the structure information described below. It is good to keep.
  • the still image control information is located before the still image control information corresponding to the display start time and after the still image information to be controlled, and the still image identification information flag is used. If all the still image information indicating the presence is read, it means that the still image information and still image control information necessary for the still image reproduction after the display start time have been completely read. For example, at some point after the start of playback, a situation in which still image information or still image control information that has been recorded ahead of the playback time axis and has not yet been read is needed for still image playback Does not occur.
  • the address information may include a serial number of a packet that satisfies the predetermined condition and a display start time corresponding to the serial number.
  • the position of the packet in the object data file can be specified based on the serial number of the packet and the display start time, and the desired partial stream can be appropriately reproduced.
  • the entry related to the still image identification flag and the control information identification flag in the correspondence definition information Sections can also be specified in a form corresponding to the display start time.
  • the address information includes a serial number of a packet relating only to the packet satisfying the predetermined condition and a display start time corresponding to the packet, and controls the i-th still image information.
  • the serial number of the first packet of a group of packets for storing still image control information for storing the still image control information is the first bucket of the group of packets for storing the still image control information for controlling the (i + 1) th still image information.
  • the buckets storing the still image information and the still image control information may be arranged so as to be smaller than the serial numbers of the packets.
  • the still image information identification flag or the control information identification flag is referred to by going back one section at a time, (ii) the still image information and the still image control information whose presence is indicated by them are specified, and (iii) If the object data file is searched for and read within the corresponding entry section, the still image information and still image control information necessary for still image reproduction after the display start time are almost read.
  • position information indicating the recording position of the still image information to be controlled (for example, a serial number of a packet indicating an entry section) is added to the still image control information, for example, the structure information described later. It is good to keep it.
  • position information indicating the recording position of the still image information to be controlled for example, a serial number of a packet indicating an entry section
  • the still image control information for example, the structure information described later. It is good to keep it.
  • one of the still image control information out of the still image control information is one of the still image control information having a head packet whose address is larger than that of the head packet.
  • the total number of still image information having a head bucket whose display is controlled by other still image control information and whose address is smaller than the head packet of the one still image control information is the still image information to be pre-read.
  • Information of the number of prefetched still images, indicating the prefetched still image identifier information for identifying the For example, the prefetch still image position information indicating the entry section) is included.
  • the control information identification flag included in the correspondence definition information is referred to, and the entry section including the still image control information is specified.
  • the still image control information is searched for in the specified section of the entry in the object data file.
  • prefetched still image number information, prefetched still image identifier information, and prefetched still image position information (for example, an entry section including still image information to be prefetched) included in the still image control information are acquired.
  • still image information to be prefetched is searched for in the object data file based on the prefetched still image number information, the prefetched still image identifier information, and the prefetched still image position information.
  • still image information to be pre-read for one still image control information refers to another still image having a head packet whose address is larger than the head packet of the one still image control information.
  • This is still image information that is display-controlled by control information and has a head packet whose address is smaller than the head packet of one still image control information.
  • Such still image information is regarded as still image information to be pre-read at the time of object data authoring, and the number of pre-read still image information, pre-read still image identifier information, and pre-read still image position information for coping with this are considered. Are stored in advance in the one still image control information.
  • the still image information and the still image control information necessary for the reproduction of the still image after the display start time are read without lack.
  • the entry section is considered as the minimum unit, at some point after the start of playback, still image information and still image control information that has been recorded in front of the playback The situation required for image reproduction does not occur.
  • the address information may include a serial number of a packet related to the packet satisfying the predetermined condition and a display start time corresponding to the serial number.
  • the still image information having a leading bucket that is controlled and has a smaller serial number than the leading packet of the one still image control information is regarded as the still image information to be prefetched, and the number of prefetched still images indicating the total number thereof, It may be configured to include look-ahead still image identifier information for identifying it and look-ahead still image position information indicating its recording position.
  • the control information identification flag included in the correspondence definition information is referred to specify an entry section including the still image control information.
  • the still image control information is searched for in the specified entry section in the object data file.
  • prefetched still image number information, prefetched still image identifier information, and prefetched still image position information (for example, an entry section including still image information to be prefetched) included in the still image control information are acquired.
  • still image information to be prefetched is searched for in the object data file ⁇ based on the prefetched still image number information, the prefetched still image identifier information, and the prefetched still image position information.
  • the still image control information is included in an entry section preceding an entry section in which a head bucket of a still image information set storing the still image control information is arranged.
  • the information further includes information indicating a recording position of the recorded other still image control information and a display end time of the still image information controlled to be displayed by the other still image control information.
  • information indicating the recording position of other still image control information recorded in the entry section preceding one entry section in which the first packet of the still image information set is arranged for example, Information indicating the display end time of the still image information to be displayed and controlled by the “previous control information recording position” described later and the other still image control information (for example, “previous control information display end time” described later) Read as part of control information. Therefore, based on this information, the still image information controlled by other still image control information that does not need to be read because it is not actually reproduced is read. No need to wait. More specifically, the display end time is compared with the reproduction start time, and if the former is located before the latter, the still image information controlled by the other still image control information is determined. Can be determined to not need to be read.
  • the address information when the content information includes video information based on the MPEG-2 standard, includes a serial number of a packet related to an I picture and a corresponding number. And a display start time.
  • the address of the bucket can be specified based on the serial number of the packet related to the I picture, and the I picture can be reproduced based on the display start time corresponding thereto. Further, based on the I picture, a B picture and a P picture can be reproduced, and if there is audio information corresponding to such video information, the audio information can be reproduced. In other words, it is possible to access the bucket related to the I picture, and also to access the bucket related to the video information and audio information related to the accessed I picture. It will be possible to play back again.
  • the still image control information includes a display start time of a still image displayed based on the still image information and information indicating a display time of the still image.
  • the still image reproduction using the corresponding still image information is performed according to the intention of the maker. Can be executed for a desired time.
  • the correspondence definition information includes table information indicating a packet identification number uniquely assigned to a plurality of buckets multiplexed at the same time for each of the partial streams. May be.
  • table information for example, an ES map table or ES address information described later
  • a desired part can be obtained at any playback time. You can quickly identify which bucket the stream corresponds to. As a result, a desired partial stream can be reproduced.
  • the plurality of buckets forming the at least one partial stream include a still image information including at least one of the still image information and the still image control information.
  • Each of the sets includes a packet for storing a fragment of the set of still image information further including structure information indicating the structure thereof.
  • the still image information and the still image control information have a structure combined with the structure information as a still image information set, and the structure is indicated by the structure information. For this reason, in the object data file, if the first bucket of an arbitrary still image information set is accessed and the structure information is acquired, all the buckets constituting the still image information set are respectively structured. Identified based on information (eg, by counting within the structure). In other words, it is possible to reduce the data amount of the address information in the correspondence definition information necessary for specifying the address of still image information and still image control information or the entry section to be stored in the object information file.
  • the still surface information set includes: (i) a first still image information set including the three members of the still image information, the still image control information, and the structure information (Ii) a second still image information set including the still image control information and the structure information and not including the still image information; and (iii) a second still image information and the structure information.
  • a first still image information set including the three members of the still image information, the still image control information, and the structure information Ii) a second still image information set including the still image control information and the structure information and not including the still image information
  • a second still image information and the structure information are included.
  • each still image information set can be identified. Can be specified based on the structural information.
  • the same still image information can be displayed and controlled in different formats by using a plurality of still image control information, and a plurality of different still image information can be displayed in the same still image Display control based on image control information can also be suitably performed.
  • still image reproduction can be executed by a combination of the still image information and the still image control information included in the same still image information set, and in this case, the address specification is the same. This can be done easily by specifying the first packet.
  • the data amount of the still image information, the address of the still image information, or the address information in the corresponding definition information necessary to identify one section of the entry to be stored in the op-image information file is further increased. Can be smaller.
  • the packet storing the structure information may be placed at the top of a plurality of buckets according to the still image information set.
  • the structure of the still image information set can be specified by searching for and reading the first packet of the still image information set in the object data file during reproduction. This makes it possible to easily specify a bucket that stores the still image information and the still image control information that make up the still image information set.
  • the entire structure information and part of the still image information or still image control information may be stored in the same first bucket.
  • the structure may be such that only the structure information is stored in one head packet.
  • the structure information may be configured to be stored in a plurality of packets.
  • the structure information includes an identifier of the still image information, a data length of the still image control information, a data length of the still image information, and a recording position of the still image information. At least the identifier may be included in the indicated location information.
  • each still image information set can be relatively quickly and quickly searched by searching for the “identifier” of the still image information set in the object data file, focusing on the specified entry section ⁇ . Easy to find.
  • the first still image information set based on the data length of the still image control information and the data length of the still image information, how many buckets for storing such information are arranged. Can be identified.
  • the second still image information set it is possible to specify how many packets storing this information are arranged based on the data length of the still image control information.
  • For the third still image information set it is possible to specify how many packets storing this information are arranged based on the data length of the still image information.
  • one still image information set is divided into a plurality or a large number of packets. Also, by specifying the address of the first packet, it is possible to specify all the packets of the still image information set. In other words, the amount of data in the corresponding definition information, particularly the address information of the bucket, to be stored in the object information file can be reduced.
  • the position information indicating the recording position of the still image information to be display-controlled for example, (Entry section).
  • the position information of the still image information is unnecessary because the still image information itself is included. In this case, for example, information indicating that the location information is invalid is described.
  • the information recording apparatus of the present invention physically stores, on an information recording medium, an entire stream including a plurality of partial streams each composed of content information forming a series of contents.
  • First recording means for recording an object data file for storing object data
  • second recording means for recording a reproduction sequence information file for storing reproduction sequence information for defining a reproduction sequence of the object data
  • a third recording unit that records an object information file that stores correspondence definition information that defines a correspondence relationship between the plurality of partial streams and the plurality of partial streams.
  • At least one partial stream includes a plurality of buckets each storing still image information, which is one of the above-mentioned content information, and fragments of still image control information for controlling the display of the still image information.
  • the correspondence definition information includes, for each of the plurality of partial streams, address information on a bucket satisfying a predetermined condition among the plurality of buckets, and further includes at least one of the at least one partial stream.
  • the at least one partial stream A group of packets including the still image control information is arranged in one section of the plurality of buckets specified by the two adjacent buckets in the arrangement of only the buckets whose positions are specified by the address information.
  • an object data file for storing object data is recorded by first recording means such as a system controller, an encoder, a TS object generator described below, and an optical pickup.
  • a reproduction sequence information file for storing reproduction sequence information is recorded by a second recording means such as a system controller, an encoder, a TS object generator described below, and an optical pickup.
  • a system controller, an encoder, and a TS object described later are recorded.
  • An object that stores, as reproduction control information, corresponding definition information that defines the correspondence between a plurality of multiplexed packets and a plurality of partial streams by a third recording unit such as an object generator or an optical pickup. Record the information file.
  • At least one partial stream is configured to include a plurality of packets each storing a fragment of still image information and still image control information.
  • the correspondence definition information includes, for each partial stream, address information on a packet that satisfies a predetermined condition, and further includes, for at least one of the partial streams, a control information identification flag and a read identification flag. Therefore, various types of content information including still image information such as bitmaps and JPEG, such as at least a part of the transport stream of MPEG2, can be multiplex-recorded on the above-described information recording medium of the present invention. .
  • the information recording apparatus of the present invention can also adopt various aspects in correspondence with the various aspects of the information recording medium of the present invention described above.
  • the information recording method of the present invention physically accesses, on an information recording medium, an entire stream including a plurality of partial streams each composed of a series of content information items.
  • An information recording method for multiplexing recording in bucket units which are possible units, comprising a plurality of buckets including buckets each storing a fragment of the content information together with a logically accessible unit.
  • a first recording step of recording an object data file storing object data a second recording step of recording a reproduction sequence information file storing reproduction sequence information defining a reproduction sequence of the object data, Object information storing correspondence definition information that defines the correspondence between the plurality of multiplexed buckets and the plurality of partial streams, as reproduction control information for controlling the reproduction of the stream data.
  • a third recording step wherein at least a partial stream of ⁇ of the plurality of partial streams controls still image information, which is one of the content information, and display of the still image information.
  • the correspondence definition information includes, for each of the plurality of partial streams, address information on a bucket that satisfies a predetermined condition among the plurality of packets. Further, for at least one of the partial streams, (i) In the one section of the plurality of buckets that form the at least one partial stream, only one of the packets whose position is specified by the address information, in the entry section specified by two adjacent packets, A control information identification flag indicating whether or not a first packet of a group of buckets including image control information exists; and (ii) another still image control existing in another entry section preceding the entry section. Includes a read identification flag that indicates whether information needs to be read.
  • an object data file storing object data is recorded in a first recording step, and a reproduction sequence information file storing reproduction sequence information is recorded in a second recording step.
  • an object information file that stores correspondence definition information that defines the correspondence between a plurality of multiplexed packets and a plurality of partial streams is recorded as reproduction control information.
  • At least one partial stream is configured to include a plurality of packets each storing still image information and a fragment of still image control information.
  • the correspondence definition information includes, for each partial stream, address information on a bucket that satisfies a predetermined condition, and for at least one partial stream, includes a control information identification flag and a read identification flag. Therefore, the information recording medium of the present invention described above includes, for example, a bit map such as at least a part of the MPEG-2 transport stream.
  • Various content information including still image information such as JPEG data can be multiplex-recorded.
  • the information recording method of the present invention can also adopt various aspects in correspondence with the various aspects of the information recording medium of the present invention described above.
  • an information reproducing apparatus of the present invention is an information reproducing apparatus for reproducing the recorded content information from the above-described information recording medium (including various aspects thereof), Reading means for physically reading information from an information recording medium; and information included in the information read by the reading means based on the reproduction control information and the reproduction sequence information included in the information read by the reading means.
  • Reproducing means for reproducing the object data to be reproduced.
  • the information reproducing apparatus of the present invention information is physically read from the information recording medium in packet units or the like by reading means such as an optical pickup and a demodulator. Then, based on reproduction control information and reproduction sequence information included in the read information, object data included in the read information is reproduced by reproduction means such as a system controller, a demultiplexer, and a decoder. Therefore, the content information multiplex-recorded on the information recording medium of the present invention can be appropriately reproduced as a series of content information. In this case, in particular, still image information such as bitmaps and JPEGs having a relatively large data amount can be efficiently reproduced, and the burden on the reproduction process is effectively suppressed.
  • the information reproducing apparatus of the present invention can also adopt various aspects.
  • the reproduction unit when a display start time is given, refers to the control information identification flag to correspond to a display start time corresponding to the display start time in the still image control information.
  • the control information identification flag in the correspondence definition information the approximate position of the still image control information to be acquired, that is, the entry including this, The section is specified. Therefore, the still image control information can be quickly obtained by subsequently searching for the specified section of the entry in the object file.
  • the still image control information whose existence has been confirmed is one of the ones corresponding to the display start time. It is nothing but still image control information.
  • the location before the entry section (address or bucket serial number is smaller).
  • the control information identification flag in one entry section in () is checked sequentially. As a result, the still image control information confirmed to be closest to the front from the entry section including the display start time is set as one still image control information corresponding to the display start time.
  • the address (or the serial number of the packet is later than the entry section).
  • the control information identification flag in one entry section (larger side) is checked sequentially. Then, the still image control information confirmed to be closest to the rear of the entry section including the display start time is set as one still image control information corresponding to the display start time. However, if the still image control information does not exist in any of the rear entry sections, the control information identification flag in the entry section ahead of the entry section including the display start time is set.
  • the still image control information that is sequentially checked and confirmed to be closest to the front from the entry section including the display start time is set as one still image control information corresponding to the display start time.
  • control information identification flag in the correspondence definition information it is possible to specify a rough position of the still image control information to be acquired, that is, a section of an entry including this.
  • an information reproducing method is an information reproducing method for reproducing the recorded content information from the information recording medium (including various aspects thereof) according to the present invention.
  • the information reproducing apparatus of the present invention in the reading step, information is physically read from the information recording medium in packet units or the like. Then, in the reproducing step, the object data included in the read information is reproduced based on the reproduction control information and the reproduction sequence information included in the read information. Therefore, the content information multiplex-recorded on the information recording medium of the present invention can be appropriately reproduced as a series of content information. At this time, in particular, still image information such as bitmaps and JPEGs having a relatively large data amount can be efficiently reproduced, and an increase in the load in the reproduction processing is effectively suppressed.
  • the information reproducing method of the present invention can also adopt various aspects in correspondence with the various aspects of the information recording medium of the present invention described above.
  • an information recording / reproducing apparatus of the present invention records the content information on the information recording medium of the present invention (including various aspects thereof) and reproduces the recorded content information.
  • An information recording / reproducing apparatus comprising: first recording means for recording the object data file; second recording means for recording the reproduction sequence information file; and third recording means for recording the object information file.
  • Reading means for physically reading information from the information recording medium; and information read by the reading means based on the reproduction control information and the reproduction sequence information included in the information read by the reading means.
  • Reproduction means for reproducing the object data included in the object data.
  • the first recording means records the object data file
  • the second recording means records the reproduction sequence information file. Record, and record the object information file by the third recording means.
  • the reading means physically reads the information from the information recording medium
  • the reproducing means reproduces the reproduction control information and the reproduction sequence included in the read information.
  • the object data included in the read information is reproduced based on the information. Therefore, for example, the above-described information recording medium of the present invention includes, for example, an MPEG-2 transport stream.
  • Various types of content information including still image information such as bitmaps and JPEGs can be multiplex-recorded at least in part, and the multiplex-recorded content information can be appropriately reproduced including reproduction of still images.
  • the information recording / reproducing apparatus of the present invention can also adopt various aspects in correspondence with the various aspects of the information recording medium of the present invention described above.
  • an information recording / reproducing method of the present invention records the content information on the information recording medium of the present invention (including various aspects thereof) and reproduces the recorded content information.
  • An information recording / reproducing method comprising: a first recording step of recording the object data file; a second recording step of recording the reproduction sequence information file; and a third recording step of recording the object information file.
  • a reproducing step of reproducing the included object data comprising: a first recording step of recording the object data file; a second recording step of recording the reproduction sequence information file; and a third recording step of recording the object information file.
  • an object data file is recorded in a first recording step, and a reproduction sequence information file is recorded in a second recording step. Record, and record the object information file in the third recording step.
  • the reading step physically reads the information from the information recording medium, and the reproducing step reproduces the reproduction control information and the reproduction sequence included in the read information.
  • the object data included in the read information is reproduced based on the information.
  • various types of content information including still image information such as bitmaps and JPEG, such as at least a part of the MPEG-2 transport stream, can be multiplex-recorded on the above-described information recording medium of the present invention.
  • the multiplex-recorded content information can be appropriately reproduced, including reproduction of a still image.
  • the information recording / reproducing method of the present invention can also adopt various aspects, corresponding to the various aspects of the information recording medium of the present invention described above.
  • a computer program for recording control is a computer program provided in the above-described information recording apparatus of the present invention (including various aspects thereof).
  • a computer program for recording control for controlling a computer the computer causing the computer to function as at least a part of the first recording unit, the second recording unit, and the third recording unit.
  • the recording control computer program of the present invention if the computer program is read from a recording medium such as a ROM, a CD-ROM, a DVD-ROM, or a hard disk that stores the computer program and executed by the computer.
  • a recording medium such as a ROM, a CD-ROM, a DVD-ROM, or a hard disk that stores the computer program and executed by the computer.
  • the computer program is executed after being downloaded to a computer via communication means, the above-described information recording apparatus according to the present invention can be realized relatively easily.
  • a computer program for reproduction control of the present invention is a computer program for reproduction control for controlling a computer provided in the above-mentioned information reproducing apparatus of the present invention (including its various aspects). Wherein the computer functions as at least a part of the reproducing means.
  • the computer program is read from a recording medium such as a ROM, a CD-ROM, a DVD-ROM, or a hard disk which stores the computer program, and executed by the computer.
  • a recording medium such as a ROM, a CD-ROM, a DVD-ROM, or a hard disk which stores the computer program
  • the computer program is executed after being downloaded to a computer via the communication means, the above-described information reproducing apparatus according to the present invention can be realized relatively easily.
  • a computer program for recording / reproducing control is a computer program for controlling a computer provided in the information recording / reproducing apparatus of the present invention (including its various aspects).
  • the computer program causes the computer to function as at least a part of the first recording unit, the second recording unit, the third recording unit, and the reproducing unit.
  • the computer program can be read from a recording medium such as a ROM, a CD-ROM, a DVD-ROM, or a hard disk for storing the computer program and executed.
  • a recording medium such as a ROM, a CD-ROM, a DVD-ROM, or a hard disk for storing the computer program and executed.
  • the computer program is executed after being downloaded to the computer via the communication means, the above-described information recording according to the present invention can be performed.
  • a playback device can be realized relatively easily.
  • the data structure including the control signal of the present invention is designed so that an entire stream including a plurality of partial streams each composed of a series of content information is physically accessed. It is multiplexed and recorded in buckets, which are possible units, and stores object data consisting of a plurality of packets including packets each of which is a logically accessible unit and stores a fragment of the content information.
  • An object information file for storing definition information, wherein at least one of the plurality of partial streams is a still image information which is one of the content information and the still image information. And a plurality of packets each storing a fragment of the still image control information for controlling the display of the plurality of packets, and the correspondence definition information includes, for each of the plurality of partial streams, the plurality of packets. And at least one of the partial streams includes (i) the address information of a plurality of buckets constituting the at least one partial stream.
  • the still image In the entry section specified by only the packet whose position is specified by, and by two adjacent packets, the still image A control information identification flag indicating whether or not a first bucket of a group of buckets including control information exists; and (ii) other still image control information existing in another entry section preceding the entry section. Includes a read identification flag that indicates whether it is necessary to read.
  • still image information such as a bit map or JPEG is compliant with the MPEG-2 transport stream, for example. It is possible to multiplex-record complex content information including, and to reproduce it including still image reproduction.
  • the data structure including the control signal of the present invention can also adopt various aspects, corresponding to the various aspects of the information recording medium of the present invention described above.
  • a first program storage device of the present invention is an information recording device for solving the above-mentioned problems.
  • a program storage device readable by a computer provided in the device, and clearly embodies a computer program capable of causing the computer to execute the above-described information recording method of the present invention.
  • a second program storage device is a program storage device readable by a computer provided in an information reproducing device, in order to solve the above-mentioned problem. It explicitly embodies a computer program capable of executing the program.
  • a third program storage device of the present invention is a program storage device that can be read by a computer provided in an information recording / reproducing device in order to solve the above-mentioned problem.
  • the computer program is read by a computer from a program storage device such as a ROM, a CD-ROM, a DVD-ROM, or a hard disk that stores the computer program.
  • a program storage device such as a ROM, a CD-ROM, a DVD-ROM, or a hard disk that stores the computer program.
  • a computer data signal embodied by the first transmission wave according to the present invention is a series of computer data signals for causing a computer provided in an information recording apparatus to execute the information recording method according to the present invention. Indicates an instruction.
  • a computer data signal embodied by the second transmission wave of the present invention is a series of computer data signals for causing a computer provided in an information reproducing apparatus to execute the above-described information reproducing method of the present invention. Indicates an instruction.
  • a computer data signal embodied by the third transmission wave according to the present invention is configured to cause a computer provided in an information recording / reproducing apparatus to execute the above-described information recording / reproducing method of the present invention in order to solve the above-mentioned problems.
  • a computer provided in an information recording / reproducing apparatus to execute the above-described information recording / reproducing method of the present invention in order to solve the above-mentioned problems.
  • Here is a simple sequence of instructions.
  • the computer program is downloaded to a computer by a computer data signal via a computer network or the like, and is executed. If the above-described information recording method, information reproducing method, or information recording / reproducing method according to the present invention can be realized relatively easily.
  • FIG. 1 shows a basic structure of an optical disc which is an embodiment of the information recording medium of the present invention.
  • An upper part is a schematic plan view of an optical disc having a plurality of areas, and a lower part corresponding thereto is:
  • FIG. 3 is a schematic conceptual diagram of an area structure in the radial direction.
  • Fig. 2 is a schematic conceptual diagram of a conventional MPEG 2 program stream (Fig. 2 (a)) and a schematic conceptual diagram of an MPEG 2 transport stream used in the present embodiment (Fig. 2 (b) )).
  • FIG. 3 is a diagram schematically illustrating a data structure recorded on the optical disc of the present embodiment.
  • FIG. 4 is a diagram schematically showing details of a data structure in each object shown in FIG.
  • FIG. 5 shows that the elementary stream for the upper program # 1 and the elementary stream for the middle program # 2 in this embodiment are multiplexed, and the transport stream for these two programs is multiplexed.
  • FIG. 3 is a diagram conceptually showing how is configured with the horizontal axis as a time axis.
  • FIG. 6 conceptually shows an image of a TS bucket multiplexed in one transport stream in the present embodiment as a packet arrangement along time.
  • FIG. 7 is a diagram schematically illustrating a logical configuration of data on an optical disc in the embodiment, focusing on development from a logical hierarchy to an object hierarchy or a physical hierarchy.
  • FIG. 8 is a block diagram of the information recording / reproducing apparatus according to the embodiment of the present invention.
  • FIG. 9 is a flowchart showing a recording operation (No. 1) of the information recording / reproducing apparatus in the present embodiment.
  • FIG. 10 is a flowchart showing a recording operation (No. 2) of the information recording / reproducing apparatus in the present embodiment. It is a mouth-to-mouth.
  • FIG. 11 is a flowchart showing a recording operation (part 3) of the information recording / reproducing apparatus in the present embodiment.
  • FIG. 12 is a flowchart showing a recording operation (part 4) of the information recording / reproducing apparatus in the present embodiment.
  • FIG. 13 is a flowchart showing a reproducing operation of the information recording / reproducing apparatus in the present embodiment.
  • FIG. 14 is a conceptual diagram showing an example of a data structure in the ES address information related to the video stream constructed in the ES map table in the object information in the embodiment.
  • FIG. 15 is a conceptual diagram schematically showing an example of the position of the TS bucket registered in the ES address information of the video stream on the TS object with respect to the time axis.
  • FIG. 16 is a conceptual diagram showing the contents of SP data, SP control information, and structure information according to a first method of acquiring SP data and SP control information in the embodiment.
  • FIG. 17 is a diagram illustrating a sub-picture structure according to the embodiment.
  • FIG. 18 is a conceptual diagram showing the packet arrangement conditions adopted in the first acquisition method on the time axis of the TS object.
  • FIG. 19 is a conceptual diagram showing an acquisition procedure in the first acquisition method.
  • FIG. 20 is a conceptual diagram showing the data structure of the ES address information related to the sub-picture stream in the TS object shown in FIG. 'FIG. 21 is a conceptual diagram showing the contents of the structure information, the SP control information, and the SP data according to the second method of acquiring the SP data and the SP control information in the embodiment.
  • FIG. 22 is a conceptual diagram showing an acquisition procedure in the second acquisition method.
  • FIG. 23 is a conceptual diagram showing the data structure of the ES address information related to the sub-picture stream in the TS object shown in FIG.
  • FIG. 24 shows a specific example of the structure information and SP control information according to the second acquisition method.
  • FIG. 25 is a conceptual diagram showing the data structure of the SCP identification flag according to the first acquisition restriction method, which is constructed in the ES map table in the embodiment.
  • FIG. 26 is a conceptual diagram showing a specific example of an acquisition procedure in the first acquisition restriction method.
  • FIG. 27 is a flowchart showing an acquisition procedure according to the first acquisition restriction method.
  • FIG. 28 is a conceptual diagram illustrating the principle of the acquisition procedure according to the second acquisition restriction method in the embodiment.
  • FIG. 29 is a conceptual diagram showing a specific example of a sub-picture structure according to the second acquisition restriction method.
  • FIG. 30 is a conceptual diagram showing another specific example of the sub-picture structure according to the second acquisition restriction method.
  • FIG. 31 is a flowchart showing an acquisition procedure according to the second acquisition restriction method.
  • FIG. 32 is a diagram conceptually showing the entire access flow at the time of reproduction in relation to the logical structure of the optical disc in the present embodiment.
  • FIG. 33 is a diagram schematically illustrating a specific example of a data configuration of a disk information file in a specific example according to the present embodiment.
  • FIG. 34 is a diagram schematically illustrating a specific example of a data configuration of a title information table included in a disk information file in a specific example according to the present embodiment.
  • FIG. 35 is a diagram schematically illustrating a specific example of a data configuration in a playlist information table constructed in a playlist information file in a specific example according to the present embodiment.
  • FIG. 36 is a diagram schematically illustrating a specific example of a data configuration in an AU table constructed in an object information file and an ES map template associated with the AU table in one specific example according to the present embodiment. .
  • the information recording medium of the present invention is used for recording (writing) and reproducing (reading). This is applied to a type of optical disc that can be used.
  • FIG. 1 shows a schematic plan view of the structure of an optical disk having a plurality of areas on the upper side, and shows a conceptual diagram of an area structure in the radial direction on the lower side.
  • the optical disc 100 can be recorded by various recording methods, such as a magneto-optical method and a phase change method, which can record (write) plural times or only once.
  • a magneto-optical method and a phase change method which can record (write) plural times or only once.
  • a phase change method which can record (write) plural times or only once.
  • An area 108 is provided.
  • groove tracks and land tracks are alternately provided spirally or concentrically around the center hole 102, and the group tracks may be coupled. Prepits may be formed on one or both of these tracks.
  • the present invention is not particularly limited to an optical disk having such three areas.
  • FIG. 1 schematically shows the structure of an MPEG 2 program stream in a conventional DVD for comparison
  • Figure 2 (b) shows the MPEG 2 transport stream.
  • the structure of the Ream (TS) is shown schematically.
  • one program stream includes only one video stream for video data as main video information along the time axis t, and further includes an audio stream for audio data as audio information. It contains a maximum of 8 lines and a maximum of 32 sub-picture streams for sub-picture data as sub-picture information. That is, the video data multiplexed at an arbitrary time tX relates to only one video stream. For example, a plurality of video streams corresponding to a plurality of television programs or a plurality of movies are simultaneously transmitted. It cannot be included in the program stream. In order to multiplex and transmit or record television programs with video, at least one video stream is required for each television program. Because of the necessity, it is not possible to multiplex and transmit or record multiple TV programs in the DVD program stream format, which has only one video stream.
  • one transport stream includes a plurality of video streams as elementary streams (ES) for video data as main video information, and further includes audio as audio information. It includes a plurality of audio streams as an elementary stream (ES) for data, and a plurality of sub-picture streams as an elementary stream (ES) for sub-picture data as sub-picture information. That is, the video data multiplexed at an arbitrary time tX relates to a plurality of video streams. For example, a plurality of video streams corresponding to a plurality of television programs or a plurality of movies are simultaneously transported. It can be included in the trim. In the transport stream format in which a plurality of video streams exist, a plurality of television programs and the like can be multiplexed and transmitted or recorded. However, in digital broadcasting that uses the current transport stream, the sub-picture stream is not transmitted.
  • the video stream, the audio stream and the sub-picture stream are arranged in this order from the top for convenience of explanation, but the bucket is arranged in this order as described later. It does not correspond to the order of multiplexing on a per-port basis.
  • the transport stream conceptually, for example, one program corresponds to a group of one video stream, two audio streams, and two sub-picture streams. ing.
  • the optical disc 100 of the present embodiment described above is capable of multiplex-recording a transport stream (TS) including a plurality of elementary streams (ES) within the limitation of the recording rate. That is, a plurality of programs or programs can be simultaneously recorded.
  • TS transport stream
  • ES elementary streams
  • FIG. 3 schematically shows the data structure recorded on the optical disk 100
  • FIG. 4 shows the data structure in each object shown in FIG. 7 schematically shows details of a data structure.
  • a “title” is a playback unit that continuously executes a plurality of “play lists”. For example, a logically large unit of one movie, one TV program, etc. It is a unit you have.
  • a “playlist” is a file that stores information necessary for reproducing an “object”, and is a plurality of “items” each storing information about the reproduction range of an object for accessing the object. It is configured. More specifically, each item describes ".IN point information” indicating the start address of the object and "OUT point information” indicating the end address. Each of the “IN point information” and “OUT point information J” may directly indicate an address or may indirectly indicate an address such as time or time on a reproduction time axis.
  • An “object” is defined above.
  • the optical disc 100 has a logical structure of a disc information file 110, a play (P) list information file 120, an object information file 130, and an object data file 140.
  • FIG. 3 does not directly show the physical data arrangement on the optical disc 100, the arrangement order shown in FIG. 3 must be recorded so as to correspond to the arrangement order shown in FIG. That is, it is also possible to record the file system 105 etc. in the data recording area 106 following the lead-in area 104, and further record the object data file 140 etc. in the data recording area 106. It is. Even without the lead-in area 104 and the lead-out area 108 shown in FIG. 1, the file structure shown in FIG. 3 can be constructed.
  • the disc information file 110 is a file for storing comprehensive information on the entire optical disc 100, and includes a disc overall information 112, a title information table 114, and other information 118.
  • the disc total information 112 stores the total number of titles in the optical disc 100, for example.
  • the title information table 114 stores the type of each title (for example, sequential playback type, branch type, etc.) and the play (P) list number that constitutes each title as logical information for each title. Store.
  • the play list information file 120 stores a play (P) list information table 121 indicating a logical configuration of each play list, which is a play (P) list general information 122. , A play (P) list pointer 124, a plurality of play (P) lists 126 (P lists #l to #n), and other information 128.
  • the play list information table 122 stores the logical information of each play list 126 in the order of the play list number. In other words, the storage order of each playlist 1 26 is the playlist number.
  • the same playlist 126 can be referred to from a plurality of titles. That is, even when the title #n and the title #m use the same playlist #p, the playlist #p in the playlist information table 12 1 and the title information table 11 are used. It may be configured to point at 4.
  • the object information file 130 stores the storage location (that is, the logical address to be reproduced) in the object data file 140 for each item included in each playlist 126, and the information of the item.
  • Various attribute information related to playback is stored.
  • the object information file 130 contains an AU table 1 containing a plurality of AU (associate unit) information 1321 (AU # l to AU # q) described in detail later. 3 1, ES (elementary stream) map table 134, and other information 1 3 8 are stored.
  • the object data file 140 includes a plurality of TS objects 142 (TS # 1 object to TS #s object) for each transport stream (TS), and the entity data of the content to be played back immediately. Store.
  • the four types of files described with reference to FIG. 3 can be further divided into a plurality of files and stored, and all of them can be managed by the file system 105.
  • the TS object 144 shown in FIG. 3, which is a logically reproducible unit, is composed of a plurality of aligned units each having a data amount of, for example, 6 kB. It is divided into 1 4 and 3.
  • the beginning of the aligned unit 144 coincides with the beginning of the TS object 142 (aligned).
  • Each of the aligned units 144 3 ⁇ is further subdivided into a plurality of source packets 144 each having a data amount of 19 2 B.
  • the source packet 144 is a physically reproducible unit, and at least video data, audio data and sub-picture data of the data on the optical disk 100 are multiplexed in this unit, ie, packet unit.
  • Each source packet 144 has a data amount of 4 B, and controls reproduction of a packet rival time stamp or the like indicating a reproduction start time of a TS (Transport Stream) packet on the reproduction time axis.
  • a TS packet 146 having a data amount of 188 B.
  • the TS packet 146 has a packet header 144a at the beginning thereof and has a packet payload as an actual data part following the packet header, and the video data is packetized to be a "video packet".
  • the audio data is packetized into an “audio bucket”
  • the sub-picture data is packetized into a “sub-picture packet”
  • other data is bucketed.
  • FIGS. 5 and 6 video data, audio data, sub-picture data, etc. in the transport stream format as shown in FIG. 2 (b) are used for the TS packet 146 shown in FIG.
  • Fig. 5 shows that the elementary stream (ES) for the upper program # 1 (PG1) and the elementary stream (ES) for the middle program # 2 (PG2) are multiplexed.
  • the transport stream (TS) for these two programs (PG 1 & 2) is conceptually shown using the horizontal axis as the time axis
  • Fig. 6 shows one transport stream (TS). It conceptually shows the image of TS packets multiplexed in a port stream (TS) as a packet arrangement along time.
  • the elementary stream for program # 1 (upper part) is composed of, for example, a TS packet 146 in which video data for program # 1 is packetized on the time axis (horizontal axis). On the other hand, they are arranged discretely.
  • Element for program # 2 In the mental stream (middle), for example, TS packets 146 in which video data for program # 2 are packetized are arranged discretely with respect to the time axis (horizontal axis). Then, these TS packets 146 are multiplexed to construct a transport stream (lower part) for these two programs.
  • a TS in which audio data is bucketed is actually used as an elementary stream for program # 1.
  • Elementary stream consisting of buckets Suppose stream consisting of TS buckets in which sub-picture data is bucketed may also be multiplexed, and in addition to these, elementary streams for program # 2 As the stream, an elementary stream composed of a TS packet in which audio data is packetized and a sub-picture stream composed of a TS bucket in which sub-picture data is bucketed may be similarly multiplexed.
  • one TS stream is constructed from a large number of TS buckets 146 multiplexed in this way. Then, a large number of TS buckets 146 are multiplexed and recorded on the optical disc 100 with information of a packet arrival time stamp and the like 145 added in such a multiplexed form.
  • "E1ement (i0j)" is a number indicating the order of each stream constituting the program. This (i0j) is a TS bucket for each elementary stream.
  • the bucket ID is multiplexed at the same time so that even if a plurality of TS buckets 146 are multiplexed at the same time, they can be distinguished from each other.
  • a unique value is assigned to a plurality of TS buckets 144.
  • PAT Program Association Table
  • PMT Program Map Table
  • the PAT stores a table indicating bucket IDs of a plurality of PMTs.
  • the MPEG2 standard specifies that the PAT is given a (0000) as a predetermined bucket ID as shown in FIG. That is, of the many packets multiplexed at the same time, the packet ID is (00 0) T
  • the S packet 146 a TS bucket 146 in which the PAT is bucketed is detected.
  • the PMT stores, for one or a plurality of programs, a table indicating a packet ID for each elementary stream constituting each program.
  • An arbitrary bucket ID can be assigned to the PMT, and those packet IDs are indicated by the PAT that can be detected as the packet ID force (0000) as described above. Therefore, among the many packets multiplexed at the same time, the TS packet 146 with the PMT packetized (that is, the packet ID (100), (200), The TS packet (146) to which (300) is assigned is configured to be detected by PAT.
  • the tuner refers to the PAT and PMT configured as described above, and the tuner selects a desired element from the multiplexed bucket. It is possible to extract those corresponding to the tally stream and demodulate them.
  • such a PAT or PMT packet is included as the TS packet 144 stored in the TS object 142 shown in FIG. That is, when the transport stream as shown in FIG. 6 is transmitted, there is obtained a great advantage that the data can be recorded on the optical disc 100 as it is.
  • the PAT and PMT recorded in this manner are not referred to when the optical disc 100 is reproduced, but are instead shown in FIG.
  • the map table 134 By referring to the map table 134, more efficient reproduction can be performed, and complicated multi-vision reproduction can be dealt with.
  • the correspondence between the elementary stream and the packet obtained by referring to the PAT and the PMT at the time of demodulation and recording is represented by the AU tape 13 1 and the ES map table 13. It is stored in the object information file 130 in the form of 4 and without packetization or multiplexing.
  • FIG. 7 schematically shows the logical configuration of data on the optical disk 100, focusing on the development from the logical layer to the object layer or the entity layer.
  • the optical disc 100 contains, for example, one movie, one TV program, etc.
  • One or more titles S which are logically large units of the title, are recorded.
  • Each title 200 is logically composed of one or more playlists 126. Within each title 200, a plurality of playlists may have a sequential structure or a branch structure.
  • one title 200 is composed of one playlist 126. It is also possible to refer to one playlist 126 from a plurality of titles 200.
  • Each play list 126 is logically composed of a plurality of items (play items) 204.
  • the plurality of items 204 may have a sequential structure or a branch structure. It is also possible to refer to one item 204 from a plurality of playlists 126.
  • the reproduction range of the TS object 142 is logically specified by the above-described IN point information and OUT point information described in the item 204. Then, by referring to the object information 130d for the playback range logically specified, the playback range of the TS object 142 is physically specified finally through the file system. Is done.
  • object information 130 d is attribute information of TS object 142, and TS object 14 such as ES end address information 134 d required for data search in TS object 142. 2 includes various information for reproducing (the ES map table 134 shown in FIG. 3 includes a plurality of such ES address information 134d).
  • the physical address to be reproduced in the TS object 142 is determined from the item 204 and the object information 130d.
  • the acquired elementary stream is then reproduced.
  • the ES address described in the ES map table 13 4 (see FIG. 3) of the IN point information and the OUT point information described in the item 204 and the object information 130 d is described.
  • the logical hierarchy in the reproduction sequence is associated with the object hierarchy, and the elementary stream can be reproduced.
  • multiplex recording is performed on the optical disc 100 in units of TS packets 146, whereby a large number of elementary leases as shown in FIG.
  • the transport stream including the stream can be multiplex-recorded on the optical disc 100.
  • a digital broadcast is recorded on the optical disc 100, a plurality of programs or a plurality of programs can be simultaneously recorded within the limit of the recording rate.
  • a method of multiplexing and recording a plurality of programs or a plurality of programs on 42 is adopted.
  • an embodiment of an information recording / reproducing apparatus capable of executing such a recording process will be described.
  • FIG. 8 is a block diagram of the information recording / reproducing apparatus
  • FIGS. 9 to 13 are flowcharts showing the operation.
  • an information recording / reproducing device 500 is roughly divided into a reproducing system and a recording system, and is capable of recording information on the optical disk 100 described above and reproducing the information recorded thereon. It is configured to be possible.
  • the information recording / reproducing device 500 is for recording / reproducing as described above, but the recording system of the present invention can basically be constituted from the recording system portion.
  • the embodiment of the information reproducing apparatus of the present invention can be constructed from the reproducing system part.
  • the information recording / reproducing device 500 includes an optical pickup 502, a servo unit 503, a spindle motor 504, a demodulator 506, a demultiplexer 508, a video decoder 511, and an audio decoder 511. 2, sub-picture decoder 5 1 3, adder
  • the system controller 520 includes a file (Fi1e) system / logical structure data generator 521 and a file (Fi1e) system / logical structure data reader 522. Further, the system controller 520 has a user interface for performing user input such as memory 530 and title information. Is connected.
  • the reproduction system is generally configured from 0.
  • the modulator 606, the formatter 608, the TS object generator 610, the video encoder 611, the audio encoder 612, and the sub encoder 613 A recording system is generally configured.
  • the optical pickup 502, the service unit 503, the spindle motor 504, the system controller 520 and the memory 530, and a user interface 7 for inputting user information such as title information, etc. 20 is generally shared by both the reproduction system and the recording system.
  • a TS object data source 700 for the recording system, a TS object data source 700, a video data source 711, an audio data source 712, and a sub-picture data source 713 are prepared.
  • the file system logical structure data generator 521 provided in the system controller 520 is mainly used in a recording system, and the file system / logical structure reader 522 is mainly used in a reproducing system. Used.
  • the optical pickup 502 irradiates the optical disc 100 with an optical beam LB such as a laser beam at a first power as read light at the time of reproduction, and at a second power as write light at the time of recording. Irradiation is performed with modulation.
  • the servo unit 503 performs control such as focus servo and tracking servo in the optical pickup 502 under the control of the control signal Sc 1 output from the system controller 520, and also performs spindle control. Perform spindle servo in motor 504.
  • the spindle motor 504 is configured to rotate the optical disk 100 at a predetermined speed while receiving spindle servo from the service unit 503.
  • a TS object data source 700 is composed of, for example, a recording storage such as a video tape and a memory, and stores the TS object data D1.
  • information of each title logically configured on the optical disc 100 using the TS object data D 1 (for example, a playlist configuration content) is transmitted from the user interface 720 to the title.
  • the information is input to the system controller 520 as a user input I2 such as the Then, the system controller 520 takes in the user input I2 such as the title information from the user interface 720 (step S21: Yes and step S22).
  • the user interface 720 receives the control according to the control signal Sc 4 from the system controller 520, and inputs according to the content to be recorded, for example, selection via a title menu screen. Processing is allowed. If the user input has already been performed (step S21: No), these processes are omitted.
  • the TS object data source 700 outputs the TS object data D1 under the control of the control signal Sc8 instructing the data reading from the system controller 52.
  • the system controller 520 fetches the TS object data D1 from the TS object source 700 (step S23), and uses the TS analysis function in the file system / logical structure data generator 521 to execute the process. For example, based on the PAT, PMT, and the like bucketed together with the video data as described above, analysis of the data array (for example, recording data length, etc.) in the TS object data D1, and the configuration of each elementary stream ( For example, ES-PID (elementary stream 'packet identification number) understanding, which will be described later) is performed (step S24).
  • ES-PID elementary stream 'packet identification number
  • the system controller 520 generates the file system / logical structure data from the user input 12 such as the captured title information and the data array of the TS object data D1 and the analysis result of each elementary stream.
  • the disk information file 110, the playlist information file 120, the object information file 130, and the file system 105 are created as logical information file data D4 by the device 521. Yes (Step S25).
  • Memory 5 3 0 Is used when creating such logical information file data D4.
  • a formatter 608 is a device for performing a data array format for storing both the TS object data D 1 and the logical information file data D 4 on the optical disc 100. More specifically, the formatter 608 includes a switch Swl and a switch Sw2, and is subjected to switching control by a switch control signal Sc5 from the system controller 520, thereby obtaining TS object data. At the time of formatting D 1, the switch S w1 is connected to the 1 side and the switch Sw 2 is connected to the 1 side, and the TS object data D 1 from the TS object data source 700 is connected. Is output. Note that the transmission control of the TS object data D1 is performed by a control signal Sc8 from the system controller 520. On the other hand, when the logical information file data D4 is formatted, the formatter 608 is controlled by the switch control signal Sc5 from the system controller 520, and connects the switch Sw2 to the 2 side. It is configured to output logical information file data D4.
  • step S26 in FIG. 9 the switching control by the formatter 608 configured as described above allows (i) the file system Z logical structure data generator 521 from the file system Z logical structure data generator 521 in step S25.
  • the data D4 or (ii) the TS object data D1 from the TS object data source 700 is output via the formatter 608 (step S26).
  • the selected output from the formatter 608 is sent to the modulator 606 as the disk image data D5, modulated by the modulator 606, and then transmitted to the optical disk 100 via the optical pickup 502. It is recorded (step S27).
  • the disk recording control at this time is also executed by the system controller 520.
  • Step S28 No.
  • logical information The recording order of the report file data D4 and the corresponding TS object data D1 may be either earlier or later.
  • step S29 determines whether or not to end recording on the optical disc 100 based on the presence or absence of an end command.
  • step S29: No Return to step S21 and continue the recording process.
  • step S29: Yes a series of recording processing is terminated.
  • the information recording / reproducing device 500 performs the recording process when using the created TS object.
  • step S25 after the logical information file data D4 is created in step S25, the logical information file data D4 and the corresponding TS object data D1 are created in step S26.
  • the data output is executed, the output of the TS object data D1 and the recording on the optical disc 100 are executed before step S25, and after this recording or in parallel with this recording, It is also possible to generate and record the logical information file data D4.
  • the TS object data source 700 is composed of, for example, a receiver (set top box) for receiving the digital broadcast being broadcast.
  • D1 is received and transmitted to the formatter 608 in real time (step S41).
  • reception information D3 including program configuration information decoded at the time of reception and ES-PID information to be described later (that is, information corresponding to data transmitted through the interface between the receiver and the system controller 520).
  • the TS object data D1 output to the formatter 608 is output to the modulator 606 by the switching control of the formatter 608 (step S42), and is recorded on the optical disc 100. (Step S43).
  • the file system / logical structure generator 5 2 1 is used by using the program configuration information and ES-PID information contained in the reception information D 3 fetched at the time of reception and stored in the memory 530.
  • To create logical information file data D4 (step S24 and step S25).
  • the logical information file data D4 is additionally recorded on the optical disk 100 (steps S46 and S47). The processing in steps S24 and S25 may be performed after step S43.
  • the user input 12 such as the title information from the user interface 720 is stored in the program stored in the memory 530.
  • the logical information file data D4 may be created by the system controller 520 by adding it to the configuration information and ES-PID information, and this may be additionally recorded on the optical disk 100.
  • the information recording / reproducing device 500 performs the recording process when the transport stream being broadcast is received and recorded in real time. If all received data at the time of broadcasting is temporarily stored in the archive device, and this is used as the TS object source 700, the same processing as in the above-mentioned "when using a created TS object" is sufficient. .
  • the video data source 711, the audio data source 71 12, and the sub-picture data source 71 13 are, for example, video tapes, It consists of recording storage such as memory, and stores video data DV, audio data DA and sub-picture data DS, respectively. These data sources receive video data DV, audio data DA, and sub-picture data DS under the control of a control signal Sc8 for instructing data reading from the system controller 520, respectively.
  • step S 6 1 a predetermined type of encoding process is executed (step S62).
  • the TS object generator 610 is controlled by the control signal Sc6 from the system controller 520, and converts the data thus encoded into TS object data constituting a transport stream. (Step S63). At this time, the data array information of each TS object data (for example, recording data length, etc.) ⁇ The configuration information of each elementary stream (for example, ES_PID described later) is transmitted from the TS object generator 610 as information I The data is sent to the system controller 520 and stored in the memory 530 (step S66).
  • the TS object data generated by the TS object generator 610 is sent to the switch SW1 of the formatter 608 at the 2 side. That is, when the TS object data from the TS object generator 610 is formatted, the formatter 608 is subjected to switching control by the switch control signal Sc 5 from the system controller 520, and the switch Sw 1 Is connected to switch w and switch Sw 2 is connected to switch w, thereby outputting the TS object data (step S64). Subsequently, the TS object data is recorded on the optical disc 100 via the modulator 606 (step S65).
  • the file system logical structure generator 52 is used by using the data arrangement information of each TS object data and the configuration information of each elementary stream, which are loaded into the memory 530 as the information I6.
  • the logical information file data D4 is created by 1 (step S24 and step S25). Then, after the recording of a series of TS object data D2, this is additionally recorded on the optical disc 100 (steps S67 and S68). The processing in steps S24 and S25 may be performed after the end of step S65. Further, when necessary (for example, when editing a part of the title), the user input 12 such as the title information from the user interface 720 is stored in the memory 530. By adding to the information, the logical information file data D4 may be created by the file system / logical structure generator 521, and this may be additionally recorded on the optical disc 100.
  • the information recording / reproducing device 500 performs a recording process when recording separately prepared video data, audio data, and sub-picture data.
  • the authoring system performs generation of the TS object, generation of the logical information file data, etc. in advance (step S81).
  • the process up to the process of line switching control is completed (step S82).
  • the information obtained by this operation is sent out as disc image data D5 to the modulator 606 provided before and after the disc mastering machine (step S83), and the master machine uses this mastering machine. Creation is performed (step S84).
  • the still image is included in the sub-picture data.
  • Information and data related to the control information for example, SP data, SP control information, their structure information, a header, etc., which will be described later
  • data (SP data identification flag, SCP identification flag, etc.) relating to the control information of the still image is generated in the generation of the logical information file data in step S25, and the object is generated via the formatter 608.
  • the information file 130 may be partially associated with the still image information (for example, Record in a table format associated with "one entry section").
  • a user interface 720 inputs a title to be reproduced from the optical disc 100 and its reproduction conditions to the system controller as a user input I2 of title information and the like. At this time, the user interface 720 receives the control by the control signal Sc4 from the system controller 520, and responds to the content to be reproduced, for example, selection via the title menu screen. Input processing is enabled.
  • the system controller 520 controls the disk reproduction for the optical disk 100, and the optical pickup 502 sends the read signal S7 to the demodulator 506.
  • the demodulator 506 demodulates the recording signal recorded on the optical disc 100 from the read signal S7 and outputs it as demodulated data D8.
  • Logical information file data as an unmultiplexed information part included in the demodulated data D8 (that is, the file system 105, disk information file 110, and P list information file 1 shown in FIG. 3). 2 ⁇ and the object information file 130) are supplied to the system controller 520.
  • the system controller 520 executes various reproduction controls such as a reproduction address determination process and a control of the optical pickup 502.
  • the demultiplexer 508 is controlled by the control signal Sc 2 from the system controller 520 with respect to the TS multiplex data as the multiplexed information portion included in the demodulated data D 8.
  • the control signal Sc2 is transmitted so as to start the demultipletus.
  • a video packet, an audio packet, and a sub-picture packet are respectively transmitted, and the video decoder 511 and the audio deco And the sub-picture decoder 5 13 and the sub-picture decoder 5 13. Then, the video data DV, the audio data DA, and the sub-picture data DS are respectively decoded.
  • the packets in which the PAT or PMT is included in the transport stream shown in FIG. 6 are each included as a part of the demodulated data D8, but are discarded by the demultiplexer 508. Is done.
  • the adder 514 is decoded by the video decoder 511 and the sub-picture decoder 513 under the control of the control signal Sc 3 instructing the mixing from the system controller 520.
  • the video data DV and the sub-picture data DS are mixed or superimposed at a predetermined timing.
  • the result is output as a video output from the information recording / reproducing device 500 to, for example, a television monitor.
  • the audio data DA decoded by the audio decoder 512 is output from the information recording / reproducing device 500 as an audio output, for example, to an external speaker.
  • a title is selected by the user interface 720 (step S11), and a reproduction sequence by the system controller 520 is determined based on the result of reading by the file system / logical structure reader 522. Acquisition of information is performed. Specifically, processing of the logical hierarchy (that is, acquisition of information indicating the playlist structure and information of each item constituting the playlist (see FIG. 7)) is performed (step S12). Thereby, the reproduction target is determined (step S13).
  • the object information file 1 for the TS object to be played back Perform acquisition of 30.
  • AU associate unit
  • PU presentation unit
  • the information is acquired as information stored in the information file 130 (step S14). Based on the acquired information, the above-described logical hierarchy is associated with the object hierarchy (see FIG. 7).
  • step S15 the object to be reproduced and the reproduction address are determined (step S15), and then the processing of the object hierarchy is started, that is, the reproduction is actually performed. Start (step S16).
  • step S 17 It is monitored whether or not a “scene switch” command input corresponding to the switching of PU 302 in AU 132 based on 1 information 30021 is performed (step S 17).
  • step S 17: Y e s if there is a command input of “scene change” (step S 17: Y e s), the process returns to step S 15, and the processes in steps S 15 to S 17 are repeatedly executed.
  • step S18 it is determined whether there is a command input to end the reproduction process.
  • Step S18 if there is no command input for terminating (Step S18: No), the process returns to Step SI1, and the processes in Steps S11 to S18 are repeatedly executed.
  • Step S18 if there is a command input for terminating (Step S18: Yes, a series of reproduction processing is terminated.
  • the sub-picture data decoded by 5 13 is temporarily stored in the memory 540 functioning as a buffer, and is then included in the temporarily stored sub-picture data as described below.
  • At least one of the SP data (still image data) and the SP control information (still image control data) is read out under the control of the control signal Sc5 from the system controller 520. By applying the SP control information, a still image is displayed as part or all of the video output.
  • the SP control information may be configured to be temporarily stored in a dedicated area of the memory 530 (that is, only the SP data is temporarily stored in the memory 540).
  • the SP control information may be configured to be temporarily stored in a dedicated area of the memory 530 (that is, only the SP data is temporarily stored in the memory 540).
  • use such a memory 540 as a part of the memory 530 It is also possible to build.
  • the acquisition method and the acquisition restriction method are mainly performed by the information recording / reproducing device 500 (see FIG. 8) to convert the ES address information in the object information and the SP data and SP control information in the sub-picture structure. It is based on what is done.
  • FIG. 14 is a table showing an example of the data structure in the ES address information of the video stream constructed in the ES map table in the object information
  • FIG. An example of the position of the TS packet registered in the ES address information of the video stream on the project is shown schematically with respect to the time axis (horizontal direction in the figure).
  • FIG. 16 is a table showing the contents of SP data and SP control information and the structure information according to the first acquisition method
  • FIG. 17 is a diagram showing three types of these three pieces of data or information. 1 schematically shows the sub-picture structure of FIG. Fig.
  • FIG. 18 schematically shows the arrangement conditions of the first bucket of each I-picture, SP data, and SP control information used in the first acquisition method on the time axis of the TS object.
  • FIG. 20 schematically shows an acquisition procedure in the first acquisition method.
  • FIG. 20 shows data of ES address information relating to a sub-picture stream in the TS object shown in FIG. 19, which is constructed in an ES map table. The structure is shown in a table.
  • the ES (elementary stream) address information of the video stream shown in FIG. 14 is one of the ES address information 1 34 d (see FIG. 7) in the ES map table 134 shown in FIG. It is described as a part.
  • the video stream here is an index # 14 elementary stream shown in the ES map table in Fig. 36.
  • the contents of the ES address information include only packet numbers q, r, s, t, and u,... (for example, the serial number of the packet in the TS object, hereinafter referred to as “packet number” as appropriate) and the corresponding display start time T14-0, T14-1, T 1 4—2, T 1 4—3, and so on.
  • a packet that satisfies a predetermined condition is defined as the first packet of an I-picture based on the MPEG-2 standard, and the bucket numbers and the corresponding display start times and Are described as ES address information shown in Fig.14. This is because MPEG decoding can be started if the recording position of the I picture can be specified by the address information.
  • each of the packets on the TS object specified by two adjacent buckets is specified.
  • the section is defined as "entry section".
  • a section in which ES address information is specified by adjacent packets q and r is an entry section # 0
  • a section specified by packets r and s is an entry section # 1.
  • the SP data and SP control information on the sub-picture stream relating to the still image corresponding to the video stream are defined in the entry section defined in this way. It describes their existence depending on whether they exist within the range.
  • data or information relating to a still image recorded on a subpicture stream is composed of (i) SP data 713, (ii) which constitute an example of still image information. ) SP control information 712, which constitutes an example of still image control information for controlling display of SP data 711, and (iii) a sub-picture structure together with one or both of them, and the sub-picture structure
  • the structure information (header) 711 contains three data or information.
  • Fig. 17 (a) Structural information 711, SP control information 712, and sub-picture structure 701 including all components of SP data 713, structural information 711 shown in Fig. 17 (b) and SP control information
  • a sub-picture structure 703 having structural information 711 and SP data 713 shown in FIG. 17 (c) as constituent elements.
  • DVD only the type shown in Fig. 17 (a) is defined.
  • various examples of the “still image information set” according to the present invention are respectively configured from the subpicture structures shown in FIGS. 17 (a) to 17 (c).
  • the SP control information 712 and the SP data 713 are usually composed of a plurality of TS buckets 146. It is divided into. Then, the structure information 711 is stored in the first packet in the sub-picture structure 701 to 703, and the SP information 712 (FIGS. 17 (a) and (b)) following this is stored in the first packet. The head part or the head part of the SP data 713 is also stored in the head bucket where the structure information 711 is stored.
  • the TS bucket 146 in which the head of the SP control information 712 in the sub-picture structure 702 is stored is called “SCP”.
  • the TS packet 146 in which the head of the SP data 713 in the sub-picture structure 703 is stored is called “SPD”.
  • the first bucket of the sub-picture structure 701, which includes both, is called "SCP + SPD" in a form corresponding to these.
  • “the sub-picture structure is arranged or belongs in the entry section” as shown in FIG. 15 means the sub-picture structures 70 1 and 70 2 in FIGS. 17 (a) and (b).
  • the structure information 7 11 1 has “SP data identifier”.
  • the SP data identifier in the sub-picture structures 71 and 703, identifies the SP data 713 included in the sub-picture structure.
  • the SP data identifier is included in the sub-picture structure in the sub-picture structure 702. This identifies SP data 713 included in another sub-picture structure, on which the SP control information 712 acts.
  • the structure information 711 further has information indicating “data length of SP control information” and “data length of SP data”. Based on these, at the time of reproduction, it is specified to which packet the sub-picture structure 701 continues from the head of the structure information 711. Also, based on the data length of the SP control information, at the time of reproduction, it is specified to what packet the sub-picture structure 702 continues from the beginning of the structure information 711. Furthermore, based on the data length of the SP data, at the time of reproduction, it is specified to which bucket the subpicture structure 703 continues from the head of the structure information 7111.
  • the “SP data length” in the structure information 7 11 is set to “0”, and the SP data 7 It may indicate that it does not have 13.
  • the sub-picture structure 703 that does not have the SP control information 712 by setting “data length of SP control information” in the structure information 711 to “0”, the relevant SP control information is set. It may indicate that it does not have information 7 12.
  • the structure information 711 further has "SP data position information".
  • SP data 713 on which the SP control information 712 operates is specified based on this.
  • the position information of such SP data the approximate position is described using the entry section shown in FIG.
  • the SP data 7 13 can be specified, so even if the SP picture 7 13 does not have the SP data 7 13 as in the sub-picture structure 7 02 SP control information 7 1 2 can be made to act on the planned SP data.
  • the packet number of the SPD may be directly described as the position information of the SP data.
  • the SP control information 712 includes information indicating the display start time of the applied SP data and the display time of the relevant SP data. At the time of playback, the SP data on which the SP control / record information 712 acts is played back for a predetermined time on the playback time axis, and a still image is displayed.
  • the SP data 713 has image data in, for example, a bitmap data format or a JPEG format that has been run-length encoded. For example, each pixel (pixel) has 8-bit color information data and 8-bit transparency information data. Also, SP data indicating one still image is packetized and multiplexed into a plurality of TS buckets 146 (see FIG. 4).
  • the entry section is represented by using the display start time of the bucket number of the first bucket constituting the entry section.
  • the entry section # 0 of the elementary lease stream with index # 14 is represented by "T14-0".
  • first arrangement the following conditions (hereinafter referred to as “first arrangement”) are applied to the bucket arrangement for one section of the entry defined in this way so that SCP and SPD can be acquired easily and quickly.
  • first arrangement the following conditions
  • SP control information 712 (which holds the display start time “TT”) is included.
  • the header in the sub-picture structure 70 1 to 70 3 is physically arranged as follows. Note that an entry one point refers to a packet whose position is specified by address information.
  • the sub-picture structure 70 2 including the SP control information 7 12 necessary for the SP data 7 13 to be displayed is within one entry section. Can be found by searching for. For example, in FIGS. 14 and 15, when the display start time is equal to or more than T14-1 and less than T14-4, the sub-picture structure including the SP control information 7 1 2 in the entry section # 1 The packet number of the header of 702 is recorded. On the other hand, SP data can be found from the “SP data recording position” (see FIG. 16) of the structural information 711 constituting the header as described above.
  • the SCP (as described above, the first packet of the SP control information 7 12) also has "The second arrangement condition").
  • a dotted arrow coming out of the SCP indicates a relationship in which the SP control information starting from the SCP acts on the SP data to be controlled.
  • the display start PTS is given as the (0) th process
  • the SCP is searched and read as the (1) th process
  • the SP data is read as the (2) th process.
  • the SP data is read as the (3) th process
  • the SP data is read as the (4) th process
  • the reproduction is finally started as the (5) th process. (The axis extending from left to right in the middle).
  • the first acquisition method uses the ES for the sub-picture stream as shown in FIG. 20 in a format corresponding to one section defined by the video stream shown in FIG. Write address information in the ES map table.
  • the EST dress information for the sub-picture stream is composed of the SPD for each entry section of the elementary stream indicated by the index number information 1 34 e (FIG. 36). It contains two bits of information consisting of a 1-bit SP data identification flag that indicates whether or not an SCP is present, and a 1-bit SCP identification flag that indicates whether an SCP is recorded. It should be noted that in FIG. 20, “1” is set when it exists, and “0” when it does not exist. Then, in the first acquisition method, as described below, when the SCP does not exist at the display start time by the SCP identification flag, it is determined whether or not the SCP exists ahead (left side in FIG. 19) on the reproduction time axis. Is checked. '
  • FIG. 19 during playback, first, when the display start PTS in entry section # 3 is obtained (processing (0)), the SCP identification flag (FIG. 20) of the ES address information included in the object information file Is checked to see if an SCP exists in this entry section # 3. Then, in this example, since it is determined that the sCP does not exist, the SCP identification flag is further referred to, and a search is made for a sCP existing in another entry section located ahead on the reproduction time axis. Thus, in this example, it is clear that the SCP to be read first exists in the entry section # 1. Therefore, in FIG. 19, in this object data file, SCP data is searched in this entry section # 1 (processing (1) in FIG. 19).
  • the ES packet information in FIG. 14 is referred to, the first packet (“r” in this example) of entry section # 1 is obtained, and thereafter, the object data file Then, the access to the first packet is executed. After that, the header (structure information 711) of the packet on the same sub-picture stream following this first packet is sequentially checked, and in the entry section # 1 ⁇ , the sub-picture structure 70 including the SCP is read. 2 will be found.
  • the SP control information in the subpicture structure including the acquired SCP By referring to the recorded “SP data position” (see Fig. 16), the position (entry section) of SP data that is the control target of this SP control information is specified. Then, the access to the SP data whose position is specified is executed (the process (2) in FIG. 19). For example, if the display start time T14-0 is described as the position (entry section) of the SP data, first, the ES address information shown in Fig. 14 is referenced in the object information file. Then, the packet number "q" is obtained. That is, in this example, it is found that the SPD to be read exists in the entry section # 0. Then, access to this first packet (bucket number "q") is performed in the object data file.
  • the header (structural information 711) of the packet on the same subpicture stream following the first packet is sequentially checked, and the subpicture structure including the SPD is included in the entry section # 0. Or, 70 3 (in FIG. 19, the sub-picture structure 7 0 1 indicated by “SCP + SPD # 1”) will be found.
  • the SP data identification flag shown in FIG. 20 is referred again, and the entry section including the display start time from the entry section including the SPD obtained in the (3) th processing (here, entry section # 0) is referred to.
  • entry section # 3 the SP data identification flag is set to "1", and the existence of a section containing SPD is checked. If such an SPD exists, it means that there is SP data that may be displayed after the display start time. In this example, since such an SPD exists in the entry section # 2, access is made to the sub-picture structure including the SPD, and the access is performed (FIG. 19, ( 4) Processing).
  • the still data after the arbitrary display time on the reproduction time axis is displayed.
  • SP data recorded before the arbitrary display start time which needs to be read in advance in order to perform image display accurately and without interruption, is called "look-ahead SP data". That is, the pre-read SP data is used to start playback. If you do not read in advance, there is a possibility that the still image display will be interrupted after the display starts. However, it is not necessary that the pre-read SP data is actually used for still image display after pre-reading. That is, here, if there is a possibility of being used for subsequent display according to the reproduction condition, it is treated as prefetched SP data, and the prefetching process is performed.
  • the display control based on the obtained SP control information is performed by the above processing, and the reproduction of the still image corresponding to the SP data is started (processing (5) in FIG. 19).
  • the still image display by the sub-picture corresponding to the SP data is performed in a fixed period.
  • the display start time is A still image to be displayed is displayed on the screen, and a situation in which a still image to be originally displayed cannot be displayed or a still image is interrupted after that does not occur.
  • the two flags are extremely two bits in total (see FIG. 20).
  • the SP data and SP control information recording position can be specified efficiently. For example, if the ES address information relating to the video stream as shown in FIG. 14 is 32 bits for each entry ⁇ "point, the ES address information relating to the sub-picture stream as shown in FIG. A small data amount of 1/16 is enough.
  • FIG. 21 shows the structure information, SP control information, and the contents of SP data in a table in the second acquisition method
  • FIG. 22 schematically shows the acquisition procedure in the second acquisition method
  • 23 is a table showing the data structure of the ES address information related to the sub-picture stream shown in Fig. 22 and built in the ES map table. It is a thing.
  • FIG. 24 shows a specific example of the structure information and the SP control information according to the second acquisition method.
  • the first and second arrangement conditions described above are added.
  • the second arrangement condition described with reference to FIG. 18 is used. It is executed without adding.
  • the SP data identification flag in the first acquisition method described above (see Fig. 20) is not constructed in the ES address information, and only the SCP identification flag is used as the ES address information for the sub-picture stream. It is something to describe.
  • the SP control information in the object data file describes information for identifying the prefetched SP data. is there.
  • the data or information related to the still image recorded on the sap picture stream includes the structure information 7 11 1, the Sp control information 7 1 2 ′ and It is configured to include SP data 7 13.
  • the contents of the structural information 711 and the SP data 713 are the same as those of the first acquisition method shown in FIG.
  • three types of sub-picture structures 70 1 to 70 3 shown in FIG. 17 are similarly constructed.
  • the SP control information 712 ′ includes information indicating a display start time of the applied SP data and a display time of the SP data. At the time of reproduction, the SP data on which the SP control information 712 'operates is reproduced for a predetermined time on the reproduction time axis, and a still image is displayed.
  • the SP control information 712 ′ has the total number of prefetched SP data, the identifier of the prefetched SP data, and the position information (entry section) of the prefetched SP data.
  • the “look-ahead SP data” here is defined based on the s CP recording position of the SP control information that describes the total number, etc., and is located backward on the playback time axis from the SCP of the SP control information.
  • the SP data on which the s P control information with the recorded SCP operates, and the SP data is Refers to SP data recorded ahead of s CP in the file information. Therefore, in the following description of the second acquisition method, SP data that satisfies such conditions is simply referred to as “prefetch SP data”.
  • the display start PTS is given as the (0) th process
  • the SCP of the forward entry section is searched and read as the (1) th process
  • the SP is read as the (2) th process.
  • Go to read the data then read the SCP in the backward entry section as the (3) th process, read the SP data as the (4) th process, and then read the SP data as the (5) th process
  • each process that starts playback as the (6) process is graphically described at the corresponding location on the time axis (the axis extending from left to right in the figure).
  • the second acquisition method is particularly applicable to the entry section defined by the video stream shown in Fig. 14, for example.
  • the ES address information for the sub-picture stream is described in the ES map table as shown in Fig. 23.
  • the ES address information on the sub-picture stream includes a 1-bit SCP identification flag indicating whether an SCP is recorded for each entry section. Note that in FIG. 23, “1” is set when there is one, and “0” when it does not exist. Then, in the second acquisition method, as described below, when the SCP does not exist at the display start time by the SCP identification flag, first, it is checked whether or not the SCP exists ahead on the reproduction time axis. Next, it is checked whether or not there is an SCP behind the playback time axis.
  • the subpicture structure not including SP data includes structure information 71 1 and SP control information 71 2 "
  • the top packet is SCP # 2a located in entry section # 4.
  • the SCP identification flag of the ES address information included in the op- ject information file (Fig. 23) Is checked to see if an SCP exists in this entry # 3. Then, in this example, since it is determined that the SCP does not exist, the sCP identification flag is further referred to, and first, a search is made for another entry section located forward in the reproduction time axis, in which the SCP exists. Accordingly, in this example, it is determined that the SCP to be read first exists in the entry section # 1.
  • SCP data is searched for in the object data file in this entry section # 1 (process (1) in FIG. 22). More specifically, first, the ES packet information in FIG. 14 is referred to, and the first packet of the entry section # 1 (in this example, " r ”) is obtained, and then the object data file is obtained. Within this, access to this first packet is executed. After that, the header (structure information 711) of the packet on the same sub-picture stream following the first packet is sequentially checked, and in the entry section # 1, the sub-picture structure 7 including the SCP is checked. 0 2 will be found.
  • the “SP data position” recorded in the SP control information in the obtained sub-picture structure including the SCP is referred to, and the position (entry section) of the SP data to be controlled by this SP control information is specified. You. Then, access to the SP data whose position is specified is executed (the (2) -th processing in FIG. 22). For example, if the display start time T14-0 is described as the position (entry section) of the SP data, first, the ES address information shown in Fig. 14 is referred to in the object information file. The packet number "q" is obtained. That is, in this example, it is determined that the SPD to be read exists in the entry section # 0. Then, access to this first packet (bucket number "q") is performed in the object data file.
  • the header (structural information 711) of the packet on the same sub-picture stream following this first packet is sequentially checked, and in the entry section # 0, the sub-picture structure including the SPD is checked. 0 1 or 7 0 3 (the sub picture structure 7 0 3 indicated by “SCP # 1a + SPD # 1” in FIG. 22) is to be found.
  • SCP data is searched in the object data file in this entry section # 4 (process (3) in FIG. 22). More specifically, first, the first packet (in this example, "u") of entry section # 4 is obtained by referring to the ES address information in FIG. 14, and thereafter, in the object data file. The access to the first packet is executed. After that, the headers (structural information 711) of the packets on the same sub-picture stream following this first packet are sequentially checked, and within the entry section # 4, SCP # 2a is included. The sub-picture structure 70 2 including the sub-picture structure 70 2 and SCP # lc is searched for, and SP control information 7 12 "consisting of the structure shown in Fig. 24 is obtained. It shows the specific contents of SP control information 7 1 2 for 1c.
  • the “SP data position” (see Fig. 24) recorded in the SP control information in the acquired subpicture structure including SCP # 2a is referred to, and the SP data that is the control target of this SP control information is referred to.
  • the position (entry section) is specified.
  • the access to the SP data whose position is specified is executed (the (4) th process in FIG. 22). For example, if the display start time T14-2 is described as the position (entry section) of the SP data, first, the ES address information shown in Fig. 14 is referred to in the object information file.
  • the packet number "s" is obtained. That is, in this example, it is found that the SPD to be read exists in the entry section # 2.
  • the SP data in the sub-picture structure including the acquired SPD is read (processing (4) in Fig. 22).
  • the read-ahead SP data is read.
  • the total number of prefetched SP data is “1”
  • the identifier is “# 1”
  • the position information of the prefetched SP data “# 1” identified by this is: If it is T14_0, first, the ES address information in FIG. 14 is referred to obtain the packet number (!).
  • one entry # 0 A sub-picture or structure containing SP data is searched for from among the multiple packets following this packet in the packet, and is read as the prefetched SP data (processing (5) in Fig. 22).
  • the acquisition operation need not be performed again.
  • a single flag can be used.
  • the extremely small data amount of ES address information of 1 bit see Fig. 23
  • sub-picture structure 701 or 703 including such SP data 713 and the sub-picture structure 702 including the SP control information 712 acting on the same are the same sub-picture stream. Above, or separately on multiple sub-picture streams. '
  • FIG. 25 shows a table of the data structure of the SCP identification flag according to the first acquisition restriction method, which is constructed in the ES map table.
  • FIG. 26 schematically shows a specific example of the acquisition procedure in the first acquisition restriction method
  • FIG. 27 is a flowchart showing the acquisition procedure according to the first acquisition restriction method.
  • the SP data and SP control information for a still image that may be displayed after the display start time are acquired as prefetched SP data, but the following two conditions are satisfied. If it satisfies, the SP data acquired in this way and the SP control information Is not used for
  • the first condition no SCP (head packet of Sp data) is recorded in the entry section including the display start time, and still image display is not performed in the entry section.
  • the second condition beyond the entry section including the display start time (that is, within the entry section located ahead on the playback time axis), the prefetch necessary for the actual still image display after the display start time is performed.
  • SP data does not exist.
  • the "SCP identification flag" in the first or second acquisition method described above is the sum of the "SCP presence identification flag" and the "SCP read identification flag". Consists of bits.
  • the “SCP presence identification flag” corresponds to the “control information identification flag” according to the present application, and in each entry section, whether the SCP, which is the first packet of the SP control information, exists. It is 1-bit information indicating whether or not it is. For example, its existence is indicated by the value "1".
  • the “SCP existence identification flag” according to the first acquisition restriction method has the same meaning as the 1-bit “SCP identification flag” in the first and second acquisition methods described above, and has the same value.
  • the “SCP read identification flag” corresponds to the “read identification flag” according to the present invention, and other entries that precede each entry section (that is, are located ahead on the playback time axis).
  • This is 1-bit information that indicates whether it is necessary to read other SP control information (and the SP data to be controlled) existing in one section. For example, for an entry section where no SCP is recorded, "1" is set if a read operation is required, and "0" is set if it is not required.
  • the still image playback time by the SCP in the preceding section of the entry continues up to the entry section where the SCP is recorded "1" is set, otherwise "0" Is set.
  • Fig. 26 shows a specific example of the data array state of SCP, SPD, etc. corresponding to the flag value of Fig. 25 on the playback time axis in the lower part. Shows a specific example of the SP data display time (that is, the actual still image display time) in FIG. As can be seen from FIG. 26, even when the SCP is arranged in the preceding entry section, the SP data may be displayed beyond the entry section.
  • the fact that the SCP read identification flag is set to "1" means that the still image (sub-picture) when the display starts from within the entry section is displayed without any non-display time. Indicates that it is necessary to read the SP control information (and the SP data on which it operates) starting with the SCP recorded in the preceding entry section. If the reading is neglected, for example, assuming that the entry section is about 0.5 second, the still image is not displayed at least in part during this time. Conversely, although the first and second acquisition methods are effective, they may also acquire SP control information and SP data for displaying a still image that is not actually displayed as described above.
  • the entry section including the display start time PTS (hereinafter, simply referred to as “the entry section” as appropriate) is specified (step S 1). Ten).
  • the SCP presence identification flag is referred to for the entry section, and it is determined whether or not SCP is recorded in the entry section (step S11). 1).
  • step S112 if it is the SCP recorded (step S lll: Y es :), followed by SCP reads the identification flag of the S C'P identification flag shown in FIG. 2 5, is referred to for the Ento Li one section Pre-read SP data for the entry It is determined whether it is necessary to read the SCP existing in the current entry section (hereinafter, simply referred to as “front entry section”) (step S112).
  • Step S112 if it is necessary to read the SCP in the forward entry section (Step S112: Yes :), the corresponding entry section in the object data is obtained by the first or second acquisition method described above.
  • the sub-picture structure existing within and within one section of the front entry is read (step S113).
  • playback is started from the display start time PTS using the SP control information in the read sub-picture structure and the SP data to be controlled, and a still image is displayed (step S119). ).
  • step S112 if it is not necessary to read the SCP in the forward entry section (step S112: No), according to the first or second acquisition method described above, the object data in the object data is read.
  • the sub-picture structure existing in the entry section is read (step S114). That is, in this case, the SP control information (and the SP data on which it operates) by the above-described first or second acquisition method is not read for the forward entry section. Thereafter, reproduction from the display start time PTS is started (step S119).
  • Step S111 if the SCP is not recorded in the entry section in Step S111 (Step Sll: No), the SCP reading identification flag is referred to in the entry section, and it is necessary to read the SCP. It is determined whether or not there is (Step S115).
  • step S115 if it is necessary to read the SCP (step S115: Yes), the sub-picture structure is read by the above-described first or second acquisition method (step S116). Thereafter, the reproduction from the display start time PTS is started (step S119).
  • step S115 if it is not necessary to read the SCP (step S115: No), the reproduction from the display start time PTS is started (step S119). That is, in this case, the reading of the sub-picture structure by the above-described first or second acquisition method is not performed.
  • step S110 the entry section # 2 of the display start time PTS is specified.
  • step S119 the reproduction is started without reading the SP data and the SP control information as in the first or second acquisition method (step S119).
  • step S119 the playback time elapses, after reaching the entry section # 3, SPD # 2 and the SCP acting on it are read, and the SP data is displayed from the latter half of the entry section # 3 to the entry section # 4 Be executed.
  • prefetching when prefetching is required for each entry section according to the SP reading identification flag, prefetching is performed by the first or second acquisition method described above.
  • the still image (sub-picture) when the display is started from the entry section including the display start time can be reliably displayed without any non-display time. Since the SP control information and the SP data satisfying the first and second conditions are not read, unnecessary processing is not performed.
  • FIG. 28 schematically illustrates the principle of the acquisition procedure in the second acquisition restriction method.
  • FIG. 29 illustrates a specific example of a sub-picture structure according to the second acquisition restriction method.
  • FIG. 30 illustrates another specific example of a sub-picture structure according to the second acquisition restriction method. It is a thing.
  • FIG. 31 is a flowchart showing an acquisition procedure according to the second acquisition restriction method.
  • the necessity of reading using the SCP reading identification flag is determined using the entry section as the minimum unit. Therefore, for example, as shown in Fig. 28, if the display start time PTS is specified in one entry section (one entry section # 1 in Fig. 28), it will be in the same entry section as this. In addition, even if SP data ends display before the display start time PTS, it is necessary to obtain SP control information in the front entry section # 0 for displaying this and SP data on which it operates. Become. In other words, considering the entry section as the minimum unit, it can be said that unnecessary data acquisition is not performed in the first acquisition restriction method. However, since the display is ended prior to the display start time in the entry section, SP control information on still images that are not actually displayed after the display start time and sP data on which the In a sense, it can be said that it is wasted.
  • the following control is performed in order to avoid such useless data acquisition in a strict sense.
  • the SP control information 7 based on the sub-picture structure of FIG. In “12a”, “previous control information recording position information” and “previous control information display end time information” are additionally described. Other configurations are the same as the sub-picture structure in FIG. 16 according to the first acquisition method. Further, as shown in FIG. 29 (b), the specific data content in the SP control information 7 12 2a corresponding to the data array of FIG.
  • the SP control information 7 based on the sub-picture structure of FIG. 21 according to the second acquisition method.
  • “1 2 a ′” “previous control information recording position information” and “previous control information display end time information” are additionally described.
  • Other configurations are the same as the sub-picture structure in FIG. 21 according to the second acquisition method.
  • the specific data content of the SP control information 712 a ′ corresponding to the data array of FIG. 28 is the same as that of FIG. 29 (b). This includes the information on the position of the record of the tour information and the end time of the previous control information.
  • the sub-picture structure according to the second acquisition restriction method includes the SP control information.
  • the information 712a and 712a ' "previous control information recording position information” and “previous control information display end time information” are additionally described.
  • the “previous control information recording position information” refers to a position ahead of the entry section in which the SCP or SCP + SPD, which is the first packet of the sub-picture structure including the SP control information, is recorded on the playback time axis. This information indicates the recording position of the SP control information recorded in the entry section.
  • the "previous control information display end time information” is information indicating the end time of the still image display by the SP control information indicating the recording position at the previous control information recording position.
  • the display start time PTS is specified during playback such as time search, fast forward, and rewind
  • the ES in the object information file is deleted.
  • the entry section including the display start time PTS is specified with reference to the address map (step S120).
  • the SCP presence identification flag of the SCP identification flags shown in FIG. 25 is referred to for the entry section, and it is determined whether or not SCP is recorded in the entry section (step S1211). ).
  • Step S121 if the SCP is recorded (Step S121: Yes :), the subpicture structure existing in the corresponding entry area in the object data is read by the first or second acquisition method described above. (Step S 1 2 2).
  • the SP control information 7 12a included in the read sub-picture structure (when the sub-picture structure is read by the first acquisition method in steps S122 and S124) or the SP control information 7 12a 1 2 a '(when reading the sub-picture structure by the second acquisition method in steps SI 22 and S 124), “End time of previous control information display” (see Fig. 29 or Fig. 30) Is referred to, it is determined whether or not the display end time is after the designated display start time PTS (that is, is on the right side in FIG. 28) (step S123). Here, if it is after the display start time PTS (step S123: Yes), a non-display time occurs unless SP control information in one forward entry section is obtained.
  • the SP control information 7 1 2a included in the sub-picture structure read in step S 122 (steps S 122 and S 124 In the case of reading the sub-picture structure by the first acquisition method) or the SP control information 7 1 2a '(in the case of reading the sub-picture structure by the second acquisition method in steps S122 and S124)
  • the subpicture structure within the position (one entry section) of the SP control information to be read is read (step S124).
  • the reproduction from the display start time PTS is started using the SP control information in the subpicture structure read in steps S122 and S124 and the SP data on which it operates, and a still image is displayed ( Step S 1 2 9).
  • step S123 if it is not after the display start time PTS (step S123: No), that is, the non-display time is obtained without obtaining the SP control information in the forward entry section. If no occurrence occurs, the playback from the display start time PTS starts using the SP control information in the subpicture structure read in step S122 and the SP data on which it operates without acquiring it. Is performed (Step S129).
  • the SP data in one forward entry section is the only SP data on which the SP control information read in step S124 operates, and therefore this has already been read in step S124.
  • step S121 if the SCP is not recorded in the entry section in step S121 (step S121: No), the SCP reading identification flag is referred to for the entry section, and the reading of the SCP is performed. It is determined whether or not is necessary (step S125).
  • Step S125 if it is necessary to read the SCP (Step S125: Yes :), the sub-picture structure is read by the above-described first or second acquisition method (Step S126). Thereafter, reproduction from the display start time PTS is started (step S129). Note that, in the second acquisition method here, first, the (3) th process is executed, and the (1) and (2) th processes are performed based on the previous control display end time information included in the acquired SCP. It may be determined whether or not to execute.
  • step S125 if SCP reading is not necessary (step S125: No), reproduction from the display start time PTS is started (step S129). That is, in this case, the reading of the sub-picture structure by the above-described first or second acquisition method is not performed.
  • the second acquisition restriction when pre-reading is necessary in accordance with the previous control information recording position information and the previous control information display end time information in addition to the SP read identification flag, Since the look-ahead is performed by the second acquisition method, a still image (sub-picture) when the display starts from the entry section including the display start time can be reliably displayed without any non-display time. Furthermore, since the SP control information and the SP data on which the SP control information is not required to display the still image after the display start time PTS and which acts on the SP control information are not read, useless processing is not performed.
  • FIG. 32 conceptually shows the entire access flow at the time of reproduction in relation to the logical structure of the optical disc 100.
  • the logical structure of the optical disk 100 is represented by a logical layer 401 and an object. This is roughly divided into three hierarchies, namely, the project hierarchy 4003 and a logical object association hierarchy 402 that associates these two layers with each other.
  • the logical layer 401 is a layer that logically specifies various kinds of logical information for reproducing a desired title at the time of reproduction, a playlist to be reproduced (P list), and its configuration contents. .
  • the logical hierarchy 401 contains all titles on the optical disc 100.
  • Disc information 1100d indicating 200, etc. is described in the disc information file 110 (see FIG. 3), and further, reproduction sequence information of all contents on the optical disc 100 1 2 0d is described in the playlist information file 120 (see FIG. 3). More specifically, the configuration of one or more playlists 126 is described in each title 200 as the reproduction sequence information 120 d, and each playlist 1206 includes Alternatively, the configuration of a plurality of items 204 (see FIG. 7) is described. Then, at the time of access at the time of reproduction, the title 200 to be reproduced is specified by such a logical hierarchy 401, and the playlist 126 corresponding to this is specified. Identify the corresponding item 204.
  • the logical-object association layer 4002 specifies the combination and configuration of the TS object data 144d that is the entity data. At the same time, it is a layer that specifies the attribute of the TS object data 140d to be reproduced and its physical storage address so that the address conversion from the logical layer 401 to the object layer 403 is performed. More specifically, in the logical-object association hierarchy 402, the block of contents constituting each item 204 is classified into units of AU132, and each AU132 is represented by PU.
  • Object information data 130d which is subdivided into units of 302, is described in the object information file 130 (see FIG. 3).
  • PU (presentation unit) 302 J is an example of “subgroup” in the present application, and is a unit in which a plurality of elementary streams are associated with each other in units of playback switching.
  • elementary lease stream packet ID E-PID
  • E-PID elementary lease stream packet ID
  • the user can freely switch between the three audios (eg, language-specific audio ').
  • AU (associate unit) 1 32 is a unit in which a plurality of elementary streams, such as video streams, in a TS-based project used in one title are collected. It consists of a set of PUs 302. More specifically, it is a unit in which the elementary stream packet ID (ES_PID) is indirectly grouped for each TS object via the PU302.
  • the AU1332 corresponds to a set of a plurality of programs or a plurality of programs having a specific relationship with each other in consideration of content, such as a plurality of mutually switchable programs or a plurality of programs in multi-source broadcasting. I have.
  • the PU 302 belonging to the same AU 132 corresponds to a set of one or a plurality of elementary streams constituting a plurality of programs or a plurality of programs which can be switched mutually by a user operation during reproduction. are doing.
  • the elementary stream to be reproduced is specified. That is, a desired elementary stream can be reproduced from the multiplexed data recorded on the optical disc 100 without using the PAT or PMT shown in FIG.
  • the elementary stream that is actually reproduced here is specified or specified from the PU information 302I by ES-PID, which is the packet ID of the elementary stream (see FIG. 6).
  • the information indicating the start time and end time of the reproduction is converted into the address information of the elementary stream, so that the content in the specific area (or the specific time range) of the specific element stream is reproduced. Will be.
  • the object layer 4003 is a physical layer for reproducing the actual S object data 140d.
  • TS object data 140d is described in the object data file 140 (see FIG. 3). More specifically, TS packets 146 constituting a plurality of elementary streams (ES) are multiplexed for each time, and these are arranged along the time axis, so that a plurality of TSs are arranged.
  • An elementary lease stream is configured (see Fig. 5).
  • the plurality of TS packets multiplexed at each time are associated with the PU 302 specified by the logical-object association layer 402 for each elementary stream.
  • associating a plurality of PUs 302 with one elementary stream for example, an elementary stream related to the same audio data between a plurality of switchable programs or a plurality of programs
  • Common use, or common use of the elementary stream related to the same sub-picture data is also possible.
  • the actual object data is reproduced using the physical address obtained by the conversion in the logical object association hierarchy 402.
  • FIG. 33 schematically shows a specific example of the data configuration of the disk information file 110.
  • FIG. 34 shows the title information table (table) 114 included therein.
  • Fig. 3 schematically shows a specific example of a data configuration.
  • the disk information file 110 stores disk general information 112, a title information table 114, and other information 118.
  • the disk comprehensive information 112 is comprehensive disk information such as disk volume information indicating a serial number of a series composed of a plurality of optical disks 100 and total title number information.
  • the title information table 114 stores all playlists that constitute each title and other information such as chapter information in the title as information for each title, for example. Toll # 1 info, Title # 2 info,....
  • the “Title pointer information” is the storage address information of the title #n information, that is, the title # in the title information table 1 14 as shown by the correspondence in the arrow in FIG. 33. This is storage address information indicating the storage location of n information, and is described in a relative logical address.
  • the number of titles in the optical disk 100 is arranged in the order of the titles as relative logical addresses. Note that the data amount of each of the stored address information may be a fixed byte or a variable byte.
  • the other information 118 is information on each title, such as the type of title, such as a sequential type or a branch type, and the total number of playlists.
  • the title information table 1 14 stored in the disk information file 110 shown in FIG. 33 Is described as having relatively simple contents as shown in Figure 34.
  • FIG. 35 schematically shows a specific example of the data configuration in the playlist information table (table) 121 constructed in the playlist information file 120.
  • the playlist information file 120 the playlist general information 122 and the playlist
  • the inter-table 124, the play list # 1 information table and the play list # 2 information table 126 are stored as a play list information table 122 (see FIG. 3).
  • Each field may have a structure in which a required number of tables can be added. For example, if there are four playlists, the fold may have a structure corresponding to four folds, and this is the same for the item information table 129.
  • the play list comprehensive information (P list comprehensive information) 122 describes the size of the play list table, other information, the total number of play lists, and the like.
  • the playlist list pointer table (P list pointer table) 124 as shown by the arrow in FIG. 35, the address of each playlist recording position corresponds to the address in the playlist information table 122. Stored as a relative logical address.
  • the play list # 1 information table (P list # 1 information table) 1 26 contains general information about the play list # 1, and the item information table of the play list # 1 (P list Item information Tab) 1 e) 1 2 9 and other information are stored. The same kind of information related to play list # 2 is also described in play list # 2 information table 126.
  • the “item information table (Item information table) 1 229” stores the item information of all the items constituting one program list.
  • the AU number in the AU (associate unit) table described in “Item # 1 (Item # 1 information)” or “Item # 2 (Item # 2 information)” refers to the corresponding AU number.
  • FIG. 36 shows the AU (associate unit) table 13 1 (see FIG. 3) constructed in the object information file 130 and this.
  • FIG. 3 schematically shows a specific example of a data configuration in an ES (elementary stream) map table 134 (refer to FIG. 3) associated with.
  • an object information table (object information table) is stored in the object information file 130.
  • the object information table is composed of an AU table 1331 shown in the upper part of the figure and an ES map table 134 shown in the lower part of the figure.
  • the AU table 13 1 may have a structure in which the required number of tables for each field (Field) can be added. For example, if there are four AUs, the structure may be such that the number of folds increases to four.
  • AU table comprehensive information in which the number of AUs, a pointer to each AU, and the like are described, and "other information" are stored in separate fields (File).
  • AU information 1332I indicating ES tape table index #m (ES_table Index #m) in each PU # m corresponding to each AU # n is provided.
  • the index number (Index number %) Of the corresponding ES map table 134 is described.
  • “AU” means a unit corresponding to a “program” in a television broadcast as described above (especially, in the case of a “multi-vision” broadcast, a plurality of switchable “visions”). It is a unit of one), and contains one or more PUs as playback units.
  • PU is a set of mutually switchable elementary stream included in each AU as described above, and the ES tape index # corresponding to each PU is specified by the PU information 302 I. Have been.
  • PU is a set of mutually switchable elementary stream included in each AU as described above, and the ES tape index # corresponding to each PU is specified by the PU information 302 I. Have been.
  • a multi-view content is configured by an AU
  • each PU includes a plurality of elementary leases indicating buckets constituting the content of each view.
  • the AU table 1331 stores the packet number in the case where a packet is lost due to the editing process in the serial number (serial number) of the packet in the TS object 142 described above.
  • Discontinuous information indicating a discontinuous state may be added. If such discontinuity information is used, when a packet loss occurs, the discontinuity state indicated by the discontinuity information can be taken into account without the need to newly assign a packet number (the elementary stream stream). By counting the number of packets (starting from the specified packet), the address of the packet to be accessed can be specified.
  • Such discontinuity information includes, for example, information indicating a start point of the discontinuity and the number of missing packets. As described above, only one piece of discontinuous information is collectively described for a plurality of AUs, which is very excellent from the viewpoint of saving recording capacity. Note that such discontinuity information can be described inside and outside the object information file other than the AU table 13 1.
  • ES map table general information
  • the “S map table comprehensive information” describes the size of the relevant ES map table, the total number of indexes, and the like.
  • the index #mj contains the elementary stream packet ID (ES-PID) of all the elementary streams used for reproduction, the corresponding index number and the address information of the elementary stream. It is comprised including.
  • the TS bucket number at the head of the I picture is used as the address information, that is, the ES address information 134d. Only the corresponding display time is described in the ES map table 134 to reduce the amount of data (see FIG. 14).
  • the index number information 134 e of the elementary stream used as the entry section is described, so that the SCP identification flag and the SP data identification flag are set. It is described for each section of the entry, and the amount of data is further reduced (see Figs. 20 and 23).
  • the elementary stream packet ID (ES_PID) of the actual elementary stream can be obtained from the index number of the group 134. Also, since the address information of the elementary stream stream corresponding to the elementary stream bucket ID can be obtained at the same time, the object data can be reproduced based on the information.
  • optical disc 100 Even if a new title is added to the optical disc 100, it is useful because necessary information can be easily added. Conversely, even if certain information becomes unnecessary as a result of, for example, editing, it is only necessary to refer to that information, and there is no need to actually delete that information from the table. It is useful.
  • the ES—PID not referred to from the upper AU table 13 1 is also described for each index in the lower ES map table 134, but the ES—PID not referred to is referred to. Need not be described this way. However, by writing an ES_PID that is not referred to in this way, creating a more versatile ES map table 13 4 can be used to re-edit the content, for example, when authoring again. This has the advantage that there is no need to rebuild the ES map table.
  • still image data including bitmap data having a relatively large data amount is converted into video data or sub-picture data.
  • Multiplex recording can be performed efficiently with audio data.
  • SP control information and SP data acquisition processing and still image playback control processing can be performed efficiently.
  • the recording capacity on the optical disc 100 can be saved.
  • the SP control information and this can be applied even during playback such as time search, fast forward, and rewind. Since the SP data acquisition process is not performed unnecessarily, it is very advantageous in reducing the processing load.
  • the optical disk 100 as an example of the information recording medium and the recorder or player according to the optical disk 100 as an example of the information reproducing / recording apparatus have been described.
  • the present invention is not limited to a recorder or a player, but can be applied to other various information recording media compatible with high-density recording or a high transfer rate, and its recorder or player.
  • still image information having a relatively large data amount can be multiplex-recorded together with video information, audio information, and the like. Can be reproduced.
  • a still picture information set for example, a sub-picture structure
  • different still picture control information is applied to still picture information related to one sub picture to perform display.
  • the same still image information can be used for many different expressions.
  • recording capacity for a still image having a large data amount can be saved.
  • the control information identification flag for example, SCP identification flag
  • the still image information identification flag for example, SP data identification flag
  • the read identification information SCP read identification flag
  • the front control according to the present invention.
  • An information recording medium, an information recording apparatus and method, an information reproducing apparatus and method, an information recording and reproducing apparatus and method, a computer program for recording or reproducing control, and a data structure including a control signal according to the present invention include, for example, Alternatively, it can be used for high-density optical discs such as DVDs that can record various information such as main video, audio, and sub-video for business use at high density, and can also be used for DVD players, DVD recorders, etc. . Further, for example, the present invention can be used for an information recording medium, an information recording / reproducing device, etc. which are mounted on various consumer or business computer devices or connectable to various computer devices.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Signal Processing For Recording (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Management Or Editing Of Information On Record Carriers (AREA)

Abstract

Selon l'invention, un flot complet de données constitué de flots partiels composés chacun d'informations de contenu comprenant des informations d'image fixe est enregistré de manière multiple dans des unités de paquet, sur un support d'enregistrement d'informations. Ce support d'enregistrement d'informations contient un fichier dans lequel des données d'objet constituées de paquets contenant chacun des informations de contenu sont stockées, ainsi qu'un fichier dans lequel des informations de définition de correspondance définissant la relation de correspondance entre les paquets à multiplexer et des flots partiels sont stockées. Ces informations de définition de correspondance comprennent, d'un flot partiel à un autre, un drapeau indiquant la présence d'informations de commande d'image fixe entre deux paquets adjacents (partie entrée), dans une série de simples paquets dont les positions sont déterminées par les informations d'adresse, ainsi qu'un drapeau indiquant si les informations de commande d'image fixe contenues dans la partie entrée précédente doivent être lues.
PCT/JP2003/004451 2002-04-08 2003-04-08 Support, dispositif et procede d'enregistrement d'informations, dispositif et procede d'enregistrement/reproduction d'informations, programme informatique de commande d'enregistrement ou de reproduction d'informations, et structure de donnees comprenant un signal de commande WO2003085976A1 (fr)

Priority Applications (1)

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AU2003236334A AU2003236334A1 (en) 2002-04-08 2003-04-08 Information recording medium, information recording device and method, information reproducing device and method, information recording/reproducing device and method, computer program for control of recording or reproduction, and data structure including control signal

Applications Claiming Priority (2)

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JP2002-105720 2002-04-08
JP2002105720A JP2003304497A (ja) 2002-04-08 2002-04-08 情報記録媒体、情報記録装置及び方法、情報再生装置及び方法、情報記録再生装置及び方法、記録又は再生制御用のコンピュータプログラム、並びに制御信号を含むデータ構造

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000268537A (ja) * 1999-01-14 2000-09-29 Toshiba Corp デジタルビデオ記録システム
JP2000312342A (ja) * 1999-02-23 2000-11-07 Canon Inc 記録再生装置、方法、記録装置、方法及びコンピュータ読み取り可能な記憶媒体
JP2003022658A (ja) * 2001-07-09 2003-01-24 Matsushita Electric Ind Co Ltd 情報記録媒体、情報記録媒体に情報を記録、再生する装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000268537A (ja) * 1999-01-14 2000-09-29 Toshiba Corp デジタルビデオ記録システム
JP2000312342A (ja) * 1999-02-23 2000-11-07 Canon Inc 記録再生装置、方法、記録装置、方法及びコンピュータ読み取り可能な記憶媒体
JP2003022658A (ja) * 2001-07-09 2003-01-24 Matsushita Electric Ind Co Ltd 情報記録媒体、情報記録媒体に情報を記録、再生する装置

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