JP2004128765A - Medium, device, and method for information recording, device and method for information reproducing, device and method for information recording and reproducing, information recording program, and information reproduction program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide various transition effects to consecutive reproduction of still pictures with a small information amount to the utmost. <P>SOLUTION: An information recording medium stores information denoting transition effects in consecutive reproduction of a plurality of pieces of still picture information together with a plurality of pieces of the still picture information. A plurality of pieces of the still picture information configure a logical still picture set. External transition effect information designating the start transition effect of first still picture information in the still picture set and the final transition effect of last still picture information included in the still picture set and internal transition effect information designating the start transition effect and the final transition effect of each still picture information among a plurality of pieces of the still picture information included in the still picture set are recorded. In the case of consecutive reproduction of the still picture information, each still picture is reproduced so as to play the transition effects at switching of the still pictures by referring to the transition effect information recorded in accordance with each still picture set. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an information recording medium on which a still image is recorded, reproduction of a still image from the information recording medium, and recording of a still image on the information recording medium.
[0002]
[Prior art]
A DVD audio disc is known as an information recording medium on which a plurality of still images are recorded. A DVD audio disc records a plurality of still picture information in addition to audio information such as music, and such a still picture information can be reproduced in synchronization with the reproduction of the audio information. Therefore, it is possible to continuously reproduce a plurality of pieces of still image information along with the reproduction of the audio information.
[0003]
[Problems to be solved by the invention]
Unlike a moving image, a still image has no element of movement, so simply switching a plurality of still images and reproducing them may be too simple and lack interest. For this reason, even when the same still image is displayed, various reproduction (transition) effects can be applied at the start of reproduction and at the end of reproduction to change the reproduction of the still image.
[0004]
SUMMARY OF THE INVENTION An object of the present invention is to provide various transition effects for continuous reproduction of still images with a minimum amount of information.
[0005]
[Means for Solving the Problems]
According to the first aspect of the present invention, in the information recording medium, a transition effect of the start of the first still image information in a still image set including a plurality of still image information and a plurality of still image information to be reproduced continuously. And external transition effect information specifying the end transition effect of the last still image information in the still image set, and start transition effect and end of each still image information among a plurality of still image information included in the still image set Internal transition effect information for designating transition effects is recorded.
[0006]
According to an eighth aspect of the present invention, in the information recording apparatus, the first recording means for recording a plurality of pieces of still image information on an information recording medium and a plurality of still image information to be continuously reproduced. A second recording means for recording, on the information recording medium, a start transition effect of the first still image information in the set and an external transition effect information designating an end transition effect of the last still image information in the still image set; A third recording unit for recording on the information recording medium internal transition effect information specifying a start transition effect and an end transition effect of each still image information among a plurality of still image information included in a still image set. Features.
[0007]
According to a ninth aspect of the present invention, in the information recording method, a first recording step of recording a plurality of pieces of still picture information on an information recording medium, and a still picture comprising a plurality of pieces of still picture information to be continuously reproduced. A second recording step of recording on the information recording medium external transition effect information specifying a start transition effect of the first still image information in the set and an end transition effect of the last still image information in the still image set; A third recording step of recording, on the information recording medium, internal transition effect information specifying a start transition effect and an end transition effect of each still image information among a plurality of still image information included in a still image set. Features.
[0008]
According to a tenth aspect of the present invention, there is provided an information reproducing apparatus for reproducing the information recording medium according to any one of the first to seventh aspects, wherein the plurality of still image information, the external transition effect information, and the internal Reading means for reading transition effect information from the information recording medium; and, according to the external transition effect information, a start portion of the first still image information included in the still image set and a final portion of the last still image information included in the still image set. Playback means for playing back an end portion and playing back a start portion and an end portion of each still image information among a plurality of still image information included in the still image set according to the internal transition effect information. It is characterized by.
[0009]
An invention according to claim 11 is an information reproducing method for reproducing the information recording medium according to any one of claims 1 to 7, wherein the plurality of still image information, the external transition effect information, and the internal A reading step of reading transition effect information from the information recording medium; and a start part of first still image information included in the still image set and a last still image information included in the still image set, according to the external transition effect information. A reproduction step of reproducing an end portion and reproducing a start portion and an end portion of each still image information among a plurality of still image information included in the still image set, according to the internal transition effect information. It is characterized by.
[0010]
According to a twelfth aspect of the present invention, in the information recording / reproducing apparatus, the first recording means for recording a plurality of pieces of still image information on an information recording medium and a plurality of still image information to be continuously reproduced. Second recording means for recording on the information recording medium external transition effect information specifying the start transition effect of the first still image information in the image set, and the end transition effect of the last still image information in the still image set, Third recording means for recording, on the information recording medium, internal transition effect information specifying a start transition effect and an end transition effect of each still image information among a plurality of still image information included in the still image set; Reading means for reading the still image information, the external transition effect information, and the internal transition effect information from the information recording medium; The reproduction of the start portion of the first still image information to be performed and the end portion of the last still image information included in the still image set are performed, and a plurality of pieces of still image information included in the still image set according to the internal transition effect information. And reproducing means for reproducing a start portion and an end portion of each still image information between them.
[0011]
According to a thirteenth aspect of the present invention, in the information recording / reproducing method, a first recording step of recording a plurality of pieces of still picture information on an information recording medium, and a still picture comprising a plurality of pieces of still picture information to be reproduced continuously. A second recording step of recording on the information recording medium external transition effect information specifying the start transition effect of the first still image information in the image set and the end transition effect of the last still image information in the still image set; A third recording step of recording, on the information recording medium, internal transition effect information designating a start transition effect and an end transition effect of each still image information among a plurality of still image information included in the still image set; Reading the still image information, the external transition effect information, and the internal transition effect information from the information recording medium; The reproduction of the start portion of the first still image information to be performed and the end portion of the last still image information included in the still image set are performed, and a plurality of pieces of still image information included in the still image set according to the internal transition effect information. And a reproducing step of reproducing a start portion and an end portion of each still image information between them.
[0012]
According to a fourteenth aspect of the present invention, in the information recording program, the first recording means, when executed on a computer, records a plurality of pieces of still image information on an information recording medium; The external transition effect information specifying the start transition effect of the first still image information in the still image set constituted by the image information and the end transition effect of the last still image information in the still image set is recorded on the information recording medium. A second recording means for recording, on the information recording medium, internal transition effect information for designating a start transition effect and an end transition effect of each still image information among a plurality of still image information included in the still image set. The computer is caused to function as means.
[0013]
According to a fifteenth aspect of the present invention, an information reproducing program is executed on a computer, and thereby, from the information recording medium according to any one of the first to seventh aspects, the plurality of still image information and the external Reading means for reading the transition effect information and the internal transition effect information from the information recording medium, a start portion of the first still image information included in the still image set, and a last portion included in the still image set according to the external transition effect information Reproduction means for reproducing the end portion of the still image information and reproducing the start portion and the end portion of each still image information among the plurality of still image information included in the still image set according to the internal transition effect information. The computer is caused to function as.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
In one embodiment of the present invention, an effect of starting transition of the first still image information in a still image set including a plurality of still image information and a plurality of still image information to be continuously reproduced is stored in an information recording medium. And external transition effect information specifying the end transition effect of the last still image information in the still image set, and start transition effect and end of each still image information among a plurality of still image information included in the still image set Internal transition effect information designating a transition effect is recorded.
[0015]
As the information recording medium, a medium such as a CD, a DVD, or a high-density optical disk having a further improved recording density can be preferably used. However, the present invention can be implemented by using a recording medium other than the optical disk. It is possible to do.
[0016]
First, a plurality of still image information that can be independently reproduced are recorded on the information recording medium, and can be reproduced continuously. In the present embodiment, when reproducing a plurality of pieces of still image information, the transition (that is, when the reproduction is switched from one piece of still image information to the next piece of still image information. In this specification, "transition ( The word “transition” is also used synonymously.) (Transition effect) can be defined.
[0017]
A plurality of pieces of still image information to be continuously reproduced is logically reproduced as a predetermined number of sets, and the predetermined number of pieces of still image information is referred to as a “still image set”. Therefore, by continuing the reproduction of the still image set, a large number of still image information can be reproduced continuously. Since a single still image set includes a plurality of pieces of still image information, the position where the still image information changes is (1) the start of the still image set, that is, the start of the first still image information in the still image set. (2) at the start of each piece of still picture information between a plurality of pieces of still picture information in a still picture set, (3) at the end of each piece of still picture information between a plurality of pieces of still picture information in a still picture set, and ( 4) The end of the still image set, that is, the end of the last still image information in the still image set, exists. Here, in the present embodiment, transition effects are defined independently for these four transition positions. That is, the head and the tail of the still image set are defined as external transition effects, and a plurality of still images in the still image set are defined as internal transition effects. Regarding the external transition effect, the leading side of the still image set is defined as an external start transition effect, and the tail side of the still image set is defined as an external end transition effect. Similarly, regarding the internal transition effect, the start side of each still image information is defined as an internal start transition effect, and the end side of each still image information is defined as an internal end transition effect. By defining transition effects independently for each transition position in this way, it is possible to define various different transition effects with a relatively small amount of information, without increasing the information amount more than necessary. Various changes can be given at the time of the transition in the continuous reproduction of.
[0018]
As each transition effect, transition effect type information indicating the type of the transition effect and transition effect time information indicating the period of the transition effect are defined. The transition effect type information can be, for example, information indicating whether to display the still image by wipe display, slide display, or dissolve display at the start or end of display of the still image information. . As a result, at the four transition positions described above, it is possible to perform transition of a still image with different transition types. The transition effect time information is information that defines how long such a transition effect of each type is executed over a certain time span. Therefore, if different transition effect time information is defined at the above four transition positions, still image display starts or ends slowly at a certain transition position, and still image display starts or ends instantaneously at another transition position. You can make a change, for example.
[0019]
On the other hand, in one still image set, the start transition effect of each still image information is defined to be the same for all still image information, and the end transition effect of each still image information is also defined for all still image information. It is defined to be the same for image information. Therefore, it is necessary to assign transition effect information individually to all still image information by logically defining a plurality of still image information to which it is appropriate to apply the same transition effect as one still image set. And various transition effects can be set effectively with a small amount of information.
[0020]
Reproduction sequence information for continuous reproduction of a plurality of pieces of still image information can be recorded on an information recording medium as, for example, playlist information. In this case, each transition effect information can be included in the playlist information. This makes it possible to define and hold the transition effect information in association with the reproduction sequence.
[0021]
In another embodiment of the present invention, an information recording device and an information recording method for recording the above-described still image information and each transition effect information on an information recording medium such as an optical disk are provided. In addition, each still image information is read from the above-described information recording medium on which each information is recorded, and each still image information is reproduced while realizing the transition effect based on the transition effect information defined for each. An information reproducing apparatus and an information reproducing method are provided. Further, an information recording / reproducing apparatus and an information recording / reproducing method having both functions of information recording and information reproduction can be provided. Further, by executing the program on a computer, an information recording program that causes the computer to function as an information recording device and an information reproducing program that causes the computer to function as an information reproducing device can be provided.
[0022]
The details of each of the above embodiments will be made clear by the description of the following examples.
[0023]
【Example】
[Information recording medium]
An embodiment of the information recording medium of the present invention will be described with reference to FIGS. In this embodiment, the information recording medium of the present invention is applied to an optical disk of a type capable of recording (writing) and reproducing (reading).
[0024]
First, the basic structure of the optical disk of the present embodiment will be described with reference to FIG. FIG. 1 is a schematic plan view showing the structure of an optical disk having a plurality of areas on the upper side, and the area structure in the radial direction is shown on the lower side in association with a conceptual diagram.
[0025]
As shown in FIG. 1, 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) a plurality of times or only once. A lead-in area 104, a data area 106, and a lead-out area 108 are provided on the recording surface of the disk body having a diameter of about 12 cm from the inner circumference to the outer circumference centering on the center hole 102. In each area, for example, groove tracks and land tracks are alternately provided spirally or concentrically around the center hole 102, and the groove tracks may be wobbling, or one of them may be wobbling. Alternatively, pre-pits may be formed on both tracks. The present invention is not particularly limited to an optical disk having such three areas.
[0026]
Next, configurations of a transport stream (TS) and a program stream (PS) recorded on the optical disc of the present embodiment will be described with reference to FIG. Here, FIG. 2A schematically shows the structure of an MPEG2 program stream in a conventional DVD for comparison, and FIG. 2B shows the structure of an MPEG2 transport stream (TS). Is shown schematically. FIG. 2C schematically shows the structure of an MPEG2 program stream according to the present invention.
[0027]
In FIG. 2A, one program stream recorded on a conventional DVD includes only one video stream for video data as main video information along with a time axis t, and further includes audio data as audio information. And up to 32 sub-picture streams for sub-picture data as sub-picture information. That is, 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 converted into a program stream. It cannot be included. In order to multiplex and transmit or record television programs accompanied by video, at least one video stream is required for each television program. Therefore, a DVD program having only one video stream is required. In the stream format, a plurality of television programs cannot be multiplexed for transmission or recording.
[0028]
In FIG. 2B, one transport stream (TS) recorded on the optical disc 100 of the present invention includes a plurality of video streams as elementary streams (ES) for video data as main video information. Further, it includes a plurality of audio streams as elementary streams (ES) for audio data as audio information and a plurality of sub-picture streams as elementary streams (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 included in the transport stream. Is possible. 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 the digital broadcasting employing the current transport stream, the sub picture stream is not transmitted.
[0029]
In FIG. 2C, one program stream (PS) recorded on the optical disc 100 of the present invention includes a plurality of video streams for video data as main video information, and further includes a plurality of video streams for audio data as audio information. It includes a plurality of audio streams and a plurality of sub-picture streams 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 included in the program stream. It is possible.
[0030]
2 (a) to 2 (c), the video stream, the audio stream, and the sub-picture stream are arranged from the top in this order for convenience of description, but this order is multiplexed in packet units as described later. It does not correspond to the order in which they are converted. In the transport stream, for example, a group of one video stream, two audio streams, and two sub-picture streams conceptually corresponds to, for example, one program.
[0031]
The optical disc 100 of the present embodiment described above is configured to be capable of multiplex-recording a transport stream (TS) as shown in FIG. 2B, that is, capable of recording a plurality of programs or programs simultaneously, within the limit of the recording rate. Have been. Further, in addition to or instead of such a transport stream, a program stream (PS) as shown in FIG. 2C can be multiplex-recorded on the same optical disc 100.
[0032]
Next, the structure of data recorded on the optical disc 100 will be described with reference to FIGS. FIG. 3 schematically shows a data structure recorded on the optical disc 100. FIG. 4 schematically shows details of the data structure in each title shown in FIG. FIGS. 5 and 6 schematically show details of the data structure in each play (P) list set shown in FIG. FIG. 7 schematically shows details of the data structure of each item shown in FIG. FIG. 8 schematically shows a logical configuration of data in each title element shown in FIG. 4. FIG. 9 shows a case where each playlist set is composed of one playlist. 3 schematically shows the logical configuration of data in each title element. FIG. 10 schematically shows details of the data structure in each object shown in FIG.
[0033]
In the following description, a “title” is a playback unit that continuously executes a plurality of “playlists”, and is a logically large unit such as one movie or one television program. is there. “Playlist set” refers to a bundle of “playlists”. For example, a bunch of playlists for reproducing a plurality of pieces of content information having a specific relationship that can be mutually switched in angle reproduction and parental reproduction, and contents related to a plurality of programs broadcast and recorded together in the same time zone This is a bunch of playlists for reproducing information. Alternatively, for the same title, there is a requirement for different video reproduction functions (video performance) and different audio reproduction functions (audio performance) required in the information reproduction system, such as HDTV, display resolution, surround speaker support, and speaker arrangement. This is a bundle of playlists for reproducing various types of content information prepared for each function. The “playlist” is a file storing information necessary for reproducing the “object”, and is composed of a plurality of “items” each storing information on a reproduction range of the object for accessing the object. . The “object” is the entity information of the content making up the above-described MPEG2 transport stream.
[0034]
In FIG. 3, the optical disc 100 has four types of files as a logical structure: a disc information file 110, a play (P) list information file 120, an object information file 130, and an object data file 140. A file system 105 for management is further provided. Although FIG. 3 does not directly show the physical data arrangement on the optical disc 100, the arrangement order shown in FIG. 3 is recorded so as to correspond to the arrangement order shown in FIG. It is also possible to record the file system 105 and the like in the data recording area 106 following the lead-in area 104, and further record the object data file 140 and the like in the data recording area 106. Even if the lead-in area 104 and the lead-out area 108 shown in FIG. 1 do not exist, the file structure shown in FIG. 3 can be constructed.
[0035]
The disc information file 110 is a file for storing comprehensive information on the entire optical disc 100, and stores disc total information 112, a title information table 114, and other information 118. The disc total information 112 stores, for example, the total number of titles in the optical disc 100 and the like. The title information table 114 is configured to include a title pointer 114-1 and a plurality of titles 200 (titles # 1 to #m) each of which indicates an identification number or a recording address. Each title 200 stores, as logical information, a type of each title (for example, a sequential reproduction type, a branch type, etc.) and a play (P) list number constituting each title for each title.
[0036]
As shown in FIG. 4, more specifically, each title 200 is configured to include, for example, title comprehensive information 200-1, a plurality of title elements 200-2, and other information 200-5. Further, each title element 200-2 is composed of a pre-command 200PR, a pointer 200PT to a playlist set, a post command 200PS, and other information 200-6.
[0037]
Here, the pointer 200PT, which is an example of the first pointer information according to the present invention, is stored in the playlist information file 120 corresponding to the content information to be reproduced based on the title element 200-2 including the pointer 200PT. Shows the identification number of the playlist set 126S. Note that the pointer 200PT may be information indicating the recording position of the playlist set 126S corresponding to the content information to be reproduced based on the title element 200-2. The pre-command 200PR, which is an example of the first pre-command according to the present invention, indicates a command to be executed before the reproduction of the content information whose reproduction sequence is defined by one playlist set 126S specified by the pointer 200PT. The post command 200PS, which is an example of the first post command according to the present invention, indicates a command to be executed after the reproduction of the content information whose reproduction sequence is defined by the one playlist set. The other information 200-5 included in the title element 200-2 includes, for example, next information for specifying a title element related to the next playback after the playback related to the title element.
[0038]
Therefore, at the time of reproducing the information recording medium by the information reproducing apparatus described later, the playlist set 126S is accessed according to the pointer 200PT, and a playlist corresponding to a desired program or the like is selected from the plurality of playlists 126 included therein. With such control, the desired content information can be reproduced as the title element 200-2. Furthermore, one title 200 can be reproduced by reproducing one or such title elements 200-2 sequentially. Further, in accordance with the pre-command 200PR, a command to be executed before the reproduction of the content information whose reproduction sequence is defined by one playlist set 126S specified by the pointer 200PT can be executed. Further, according to the post command 200PS, a command to be executed after the reproduction of the content information whose reproduction sequence is defined by one playlist set 126S specified by the pointer 200PT can be executed. The post command 200PS is, for example, a command for instructing branching of content information, a command for selecting the next title, and the like. In addition, the title element 200-2 next to the title element 200-2 being reproduced can be reproduced according to the next information included in the other information 200-5.
[0039]
Referring again to FIG. 3, the play list information file 120 stores a play (P) list set information table 121 indicating a logical configuration of each play list, which is composed of play (P) list set general information 122 and play (P). P) a list set pointer 124, a plurality of play (P) list sets 126S (P list sets # 1 to #n), and other information 128. The playlist set information table 121 stores the logical information of each playlist set 126S in the order of the playlist set number. In other words, the storage order of each playlist set 126S is a playlist set number. In the title information table 114, the same playlist set 126S can be referred to from a plurality of titles 200. That is, even when the title #q and the title #r use the same playlist set #p, the playlist set #p in the playlist set information table 121 is pointed by the title information table 114. You may.
[0040]
As shown in FIG. 5, the playlist set 126S includes playlist set comprehensive information 126-1, a plurality of playlists 126 (playlists # 1 to #x), an item definition table 126-3, and other information. 126-4. Each playlist 126 includes a plurality of playlist elements 126-2 (playlist elements # 1 to #y) and other information 126-5. Further, each playlist element 126-2 includes a pre-command 126PR, a pointer 126PT to an item, a post command 126PS, and other information 126-6.
[0041]
Here, the pointer 126PT as an example of the second pointer information according to the present invention is defined by the item definition table 126-3 corresponding to the content information to be reproduced based on the playlist element 126-2 including the pointer 126PT. Indicates the identification number of the item to be performed. The pointer 126PT may be a recording position of an item defined by the item definition table 126-3.
[0042]
As illustrated in FIG. 6, in the playlist set 126S, a plurality of items 204 are defined in the item definition table 126-3. These are shared by a plurality of playlists 126. Also, as the playlist set comprehensive information 126-1, the name of each playlist 126 included in the playlist set 126S, a UI (user interface information) such as a reproduction time, and address information to each item definition table 126-3 Are described.
[0043]
Referring again to FIG. 5, a precommand 126PR, which is an example of the second precommand according to the present invention, indicates a command to be executed before the reproduction of one item 204 specified by the pointer 126PT. A post command 126PS, which is an example of the second post command according to the present invention, indicates a command to be executed after the reproduction of the one item 204. The other information 126-6 included in the playlist element 126-2 includes, for example, next information specifying the playlist element 126-2 related to the next playback after the playback related to the playlist element 126-2.
[0044]
As illustrated in FIG. 7, the item 204 is a minimum unit of display. The item 204 describes “IN point information” indicating the start address of the object and “OUT point information” indicating the end address. Note that these "IN point information" and "OUT point information" may each directly indicate an address, or may indirectly indicate an address such as time or time on a reproduction time axis. In the figure, when a plurality of ESs (elementary streams) are multiplexed on the object indicated by “stream object #m”, the item 204 is specified by a specific ES combination or a specific ES. Will be specified.
[0045]
As illustrated in FIG. 7, the item 204 is a minimum unit of display. The item 204 includes two types, an item 204 for reproducing a TS object and a still image object item 204ST for reproducing a still image object.
[0046]
As illustrated in FIG. 8, the title element 200-2 logically includes a pre-command 200PR or 126PR, a playlist set 126S selected by the pointer 200PT, a post command 200PS or a post command 126PS, and next information 200PS. -6N. Therefore, the process of selecting the playlist 126 from the playlist set 126S is executed according to some conditions that can be reproduced by the system, such as the video resolution.
[0047]
However, as illustrated in FIG. 9, when the playlist set specified by the pointer 200PT is composed of a single playlist, that is, the playlist set 126S illustrated in FIG. In this case, the title element 200-2 logically includes a pre-command 200PR or 126PR, a playlist 126 to be reproduced at the time of reproduction, a post command 200PS or a post command 126PS, and next information 200-6N. You may. In this case, regardless of conditions that can be played back by the system, if a play list set is designated for playback, playback processing of a single play list 126 will be executed.
[0048]
In FIG. 3 again, the object information file 130 includes a storage position (that is, a logical address to be reproduced) in the object data file 140 for each item configured in each playlist 126 and various attribute information related to reproduction of the item. Is stored. In this embodiment, in particular, the object information file 130 includes an AU table 131 including a plurality of AU (associate unit) information 132I (AU # 1 to AU # q) described later, and an ES (elementary stream) map. The table 134 and other information 138 are stored.
[0049]
The object data file 140 stores a plurality of TS objects 142 (TS # 1 objects to TS # s objects) for each transport stream (TS) and a plurality of still image objects 142ST, that is, actual data of contents to be actually reproduced.
[0050]
Note that the four types of files described with reference to FIG. 3 can be further divided into a plurality of files and stored, respectively, and all of them may be managed by the file system 105. For example, the object data file 140 can be divided into a plurality of object data files # 1, # 2,....
[0051]
As shown in FIG. 10, the TS object 142 shown in FIG. 3, which is a logically reproducible unit, is divided into a plurality of aligned units 143 each having a data amount of, for example, 6 kB. The head of the aligned unit 143 matches (aligns) with the head of the TS object 142. Each aligned unit 143 is further subdivided into a plurality of source packets 144 each having a data amount of 192B. The source packet 144 is a physically reproducible unit. In this unit, that is, a packet unit, at least video data, audio data, and sub-picture data of the data on the optical disc 100 are multiplexed. May also be multiplexed. Each source packet 144 has control information 145 for controlling reproduction of a packet arrival time stamp indicating a reproduction processing start time of a TS (transport stream) packet on the reproduction time axis having a data amount of 4B, and 188B. And a TS packet 146 having a data amount of The TS packet 146 has a packet header 146a and a TS packet payload 146b. The TS packet payload includes video data packetized to form a "video packet" or audio data packetized to form an "audio packet". Or the sub-picture data is packetized into a “sub-picture packet”, or other data is packetized.
[0052]
Next, referring to FIGS. 11 and 12, video data, audio data, sub-picture data, and the like in a transport stream format as shown in FIG. 2B are transmitted to the optical disk 100 by the TS packet 146 shown in FIG. The point of multiplex recording is described above. Here, FIG. 11 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 and these two FIG. 12 conceptually shows how a transport stream (TS) for a program (PG1 & 2) is configured using the horizontal axis as a time axis. FIG. 12 shows a case where the transport stream (TS) is multiplexed in one transport stream (TS). FIG. 2 conceptually shows an image of a TS packet as a packet arrangement along time.
[0053]
As shown in FIG. 11, the elementary stream for program # 1 (upper part) is, for example, a TS packet 146 in which video data for program # 1 is packetized is discretely arranged on the time axis (horizontal axis). It is arranged. The elementary stream (middle stage) for the program # 2 includes, for example, TS packets 146 in which video data for the program # 2 is packetized and arranged discretely with respect to a time axis (horizontal axis). Then, these TS packets 146 are multiplexed to construct a transport stream (lower stage) for these two programs. Although omitted in FIG. 11 for the sake of convenience of description, as shown in FIG. 2B, actually, as an elementary stream for program # 1, it is composed of TS packets in which audio data is packetized. An elementary stream and a sub-picture stream composed of TS packets in which sub-picture data are packetized may be multiplexed in the same manner. In addition to these, audio data is packetized as an elementary stream for program # 2. An elementary stream made up of TS packets and a sub-picture stream made up of TS packets in which sub-picture data is packetized may be similarly multiplexed.
[0054]
As shown in FIG. 12, in the present embodiment, one TS stream is constructed from a large number of multiplexed TS packets 146. A large number of TS packets 146 are multiplexed and recorded on the optical disc 100 in such a multiplexed form, with information such as a packet arrival time stamp 145 added. Note that in FIG. 12, j (j = 1, 2,...) Is assigned to j (j = 1, 2,...) For each TS Is indicated by “Element (i0j)”, and (i0j) is a packet ID which is an identification number of the TS packet 146 for each elementary stream. This packet ID is given a unique value between a plurality of TS packets 146 multiplexed at the same time so that even if a plurality of TS packets 146 are multiplexed at the same time, they can be distinguished from each other.
[0055]
In FIG. 12, a PAT (program association table) and a PMT (program map table) are also packetized and multiplexed in units of TS packets 146. Among these, the PAT stores a table indicating the packet IDs of a plurality of PMTs. In particular, the PAT is defined by the MPEG2 standard to be given a (000) as a predetermined packet ID as shown in FIG. That is, the TS packet 146 in which the PAT is packetized is detected as the TS packet 146 having the packet ID (000) among the many packets multiplexed at the same time. The PMT stores a table indicating a packet ID for each elementary stream constituting one program or a plurality of programs. An arbitrary packet ID can be assigned to the PMT, and these packet IDs are indicated by the PAT that can detect the packet ID as (000) as described above. Accordingly, of the many packets multiplexed at the same time, the TS packet 146 in which the PMT is packetized (that is, the TS packet 146 to which the packet IDs (100), (200), and (300) are added in FIG. 12). ) Is configured to be detected by PAT.
[0056]
When a transport stream as shown in FIG. 12 is transmitted digitally, the tuner refers to the PAT and PMT configured as described above to convert a multiplexed packet into a desired elementary stream. The corresponding thing can be extracted and demodulated.
[0057]
In the present embodiment, such a PAT or PMT packet is included as the TS packet 146 stored in the TS object 142 shown in FIG. That is, when the transport stream as shown in FIG. 12 is transmitted, there is obtained a great advantage that it can be recorded on the optical disc 100 as it is.
[0058]
Further, in the present embodiment, the PAT or PMT recorded in this manner is not referred to when the optical disc 100 is reproduced, but instead, the AU table 131 and the ES map table 134 which will be described in detail later with reference to FIG. This enables more efficient reproduction and can deal with complicated multi-vision reproduction and the like. For this reason, in the present embodiment, the correspondence between the elementary stream and the packet obtained by referring to the PAT and the PMT at the time of demodulation or recording, for example, is converted into a packet in the form of the AU table 131 and the ES map table 134, or Instead, they are stored in the object information file 130.
[0059]
Next, the logical configuration of data on the optical disc 100 will be described with reference to FIG. FIG. 13 schematically shows the logical configuration of data on the optical disc 100, focusing on the development from the logical layer to the object layer or the entity layer.
[0060]
In FIG. 13, one or a plurality of logically large titles 200, such as one movie and one television program, are recorded on the optical disc 100, for example. Each title 200 includes one or more title elements 200-2. Each title element 200-2 is logically composed of a plurality of playlist sets 126S. In each title element 200-2, the plurality of playlist sets 126S may have a sequential structure or a branch structure.
[0061]
In the case of a simple logical configuration, one title element 200 is composed of one playlist set 126S, and one playlist set 126S is composed of one playlist 126. It is also possible to refer to one playlist set 126S from a plurality of title elements 200-2 or a plurality of titles 200.
[0062]
Each playlist 126 is logically composed of a plurality of items (play items) 204. In each playlist 126, 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 logically specified reproduction range, the reproduction range of the TS object 142 is physically specified finally via the file system. Here, the object information 130d includes various information for reproducing the TS object 142 such as attribute information of the TS object 142 and ES address information 134d necessary for data search in the TS object 142 (see FIG. 3). The ES map table 134 includes a plurality of such ES address information 134d).
[0063]
When the information recording / reproducing apparatus described later reproduces the TS object 142, a physical address to be reproduced in the TS object 142 is obtained from the item 204 and the object information 130d, and reproduction of a desired elementary stream is executed. You. Also at the time of reproduction of the still image object 142ST, the physical address to be reproduced in the still image object 142ST is obtained from the still image object item 204ST and the object information 130d, and the reproduction of the desired still image is executed. .
[0064]
As described above, in the present embodiment, the logic in the playback sequence is based on the IN point information and the OUT point information described in the item 204 and the ES address information 134d described in the ES map table 134 (see FIG. 3) of the object information 130d. The association from the hierarchy to the object hierarchy is performed, and the elementary stream can be reproduced.
[0065]
As described in detail above, in the present embodiment, multiplexed recording is performed on the optical disc 100 in units of TS packets 146, thereby including a number of elementary streams as shown in FIG. The transport stream can be multiplex-recorded on the optical disc 100. According to the present embodiment, when 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 limitation of the recording rate. A method of multiplexing and recording a plurality of programs is adopted. Hereinafter, an embodiment of an information recording / reproducing apparatus capable of executing such recording processing will be described.
[0066]
[Information recording / reproducing device]
Next, an embodiment of the information recording / reproducing apparatus of the present invention will be described with reference to FIGS. FIG. 14 is a block diagram of the information recording / reproducing apparatus, and FIGS. 15 to 19 are flowcharts showing the operation.
[0067]
In FIG. 14, an information recording / reproducing apparatus 500 is roughly divided into a reproducing system and a recording system, and is configured to be able to record information on the above-described optical disc 100 and to be able to reproduce the information recorded thereon. . In the present embodiment, the information recording / reproducing apparatus 500 is for recording / reproducing as described above. However, basically, the information recording / reproducing apparatus 500 can constitute an embodiment of the recording apparatus of the present invention from its recording system part. An embodiment of the information reproducing apparatus of the present invention can be constituted from a reproducing system.
[0068]
The information recording / reproducing apparatus 500 includes an optical pickup 502, a servo unit 503, a spindle motor 504, a demodulator 506, a demultiplexer 508, a video decoder 511, an audio decoder 512, a sub-picture decoder 513, a still picture decoding unit 517, an adder 514, The system includes a system controller 520, a memory 530, a memory 540, a modulator 606, a formatter 608, a TS object generator 610, a video encoder 611, an audio encoder 612, and a sub-picture encoder 613. The system controller 520 includes a file system / logical structure data generator 521 and a file system / logical structure data reader 522. Further, the system controller 520 is connected to a memory 530 and a user interface 720 for performing user input such as title information.
[0069]
Among these constituent elements, a demodulator 506, a demultiplexer 508, a video decoder 511, an audio decoder 512, a sub-picture decoder 513, a still picture decoding unit 517, an adder 514, and a memory 540 generally constitute a reproduction system. . On the other hand, among these components, a modulator 606, a formatter 608, a TS object generator 610, a video encoder 611, an audio encoder 612, and a sub-picture encoder 613 generally constitute a recording system. The optical pickup 502, the servo unit 503, the spindle motor 504, the system controller 520 and the memory 530, and the user interface 720 for performing user input of title information and the like are generally shared by both the reproduction system and the recording system. Further, 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.
[0070]
The optical pickup 502 irradiates the optical disc 100 with a light beam LB such as a laser beam as a reading light at the first power at the time of reproduction, and irradiates the recording light at the second power at a second power as modulated at the time of recording. The servo unit 503 performs focus servo and tracking servo in the optical pickup 502 and performs spindle servo in the spindle motor 504 under the control of the control signal Sc1 output from the system controller 520 during reproduction and recording. The spindle motor 504 is configured to rotate the optical disc 100 at a predetermined speed while receiving spindle servo from the servo unit 503.
[0071]
(I) Configuration and operation of recording system:
Next, with reference to FIG. 14 to FIG. 18, a specific configuration and operation of each component constituting the recording system of the information recording / reproducing apparatus 500 will be described for each case.
[0072]
(I-1) When using a created TS object or still image object:
This case will be described with reference to FIGS.
[0073]
In FIG. 14, a TS object data source 700 includes a recording storage such as a video tape or a memory, and stores a TS or still image object data D1.
[0074]
In FIG. 15, first, information of each title logically configured on the optical disc 100 using the TS object data D1 (for example, the configuration content of the playlist) is input from the user interface 720 to a user input I2 such as title information. Is input to the system controller 520. Then, the system controller 520 captures the user input I2 such as title information from the user interface 720 (Step S21: Yes and Step S22). At this time, in the user interface 720, under the control of the control signal Sc4 from the system controller 520, input processing according to the content to be recorded, such as selection via a title menu screen, is enabled. If the user input has already been performed (step S21: No), these processes are omitted.
[0075]
Next, the TS object data source 700 outputs the TS object data D1 under the control of the control signal Sc8 instructing data reading from the system controller 520. Then, the system controller 520 fetches the TS object data D1 from the TS object source 700 (step S23), and packetizes it with the video data and the like as described above by the TS analysis function in the file system / logical structure data generator 521, for example. Based on the obtained PAT, PMT, etc., the data array (for example, recording data length, etc.) in the TS object data D1 and the analysis of the configuration of each elementary stream (for example, ES_PID (elementary stream packet identification number) described later) (Understanding) and the like (step S24).
[0076]
Subsequently, the system controller 520 uses the file system / logical structure data generator 521 to generate the logical information from the user input I2 such as the title information and the data array of the TS object data D1 and the analysis result of each elementary stream. A disk information file 110, a playlist information file 120, an object information file 130, and a file system 105 (see FIG. 3) are created as the file data D4 (step S25). The memory 530 is used when creating such logical information file data D4.
[0077]
It should be noted that various variations, such as preparing data about the data arrangement of the TS object data D1 and the configuration information of each elementary stream in advance, are naturally conceivable, but these are also within the scope of the present embodiment.
[0078]
In FIG. 14, a formatter 608 is a device that performs a data array format for storing both the TS object data D1 and the logical information file data D4 on the optical disc 100. More specifically, the formatter 608 includes a switch Sw1 and a switch Sw2, and is subjected to switching control by a switch control signal Sc5 from the system controller 520. When the TS object data D1 is formatted, the switch Sw1 is set to the (1) side. And the switch Sw2 is connected to the (1) side to output TS object data D1 from the TS object data source 700. 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 formatting the logical information file data D4, the formatter 608 is switching-controlled by the switch control signal Sc5 from the system controller 520, connects the switch Sw2 to the (2) side, and outputs the logical information file data D4. It is configured as follows.
[0079]
In step S26 of FIG. 15, by the switching control by the formatter 608 thus configured, (i) the logical information file data D4 or (ii) the TS object data source from the file system / logical structure data generator 521 in step S25. The TS object data D1 from 700 is output via the formatter 608 (step S26).
[0080]
The selected output from the formatter 608 is sent to the modulator 606 as disk image data D5, modulated by the modulator 606, and recorded on the optical disk 100 via the optical pickup 502 (Step S27). The disk recording control at this time is also executed by the system controller 520.
[0081]
If both the logical information file data D4 generated in step S25 and the corresponding TS object data D1 have not been recorded, the process returns to step S26, and the recording is continuously performed (step S28: No). . The recording order of the logical information file data D4 and the corresponding TS object data D1 may be either earlier or later.
[0082]
On the other hand, if both of them have been recorded, it is determined whether or not the recording on the optical disc 100 should be terminated based on the presence / absence of the termination command (step S29), and if not, the step should be terminated (step S29: No). Returning to S21, the recording process is continued. On the other hand, when the recording should be completed (Step S29: Yes), a series of recording processes is completed.
[0083]
As described above, the information recording / reproducing apparatus 500 performs the recording process when the created TS object or still image object is used.
[0084]
In the example shown in FIG. 15, after the logical information file data D4 is created in step S25, data output of the logical information file data D4 and the corresponding TS object data D1 is executed in step S26. Before step S25, the output of the TS object data D1 and the recording on the optical disc 100 are executed, and the logical information file data D4 can be generated or recorded after this recording or concurrently with the recording. is there.
[0085]
(I-2) When receiving and recording a transport stream being broadcast:
This case will be described with reference to FIGS. In FIG. 16, the same steps as those in FIG. 15 are denoted by the same step numbers, and the description thereof will be omitted as appropriate.
[0086]
In this case as well, substantially the same processing as in the above “when using a created TS object” is performed. Therefore, the following description focuses on the differences.
[0087]
When receiving and recording the transport stream being broadcast, the TS object data source 700 includes, for example, a receiver (set-top box) that receives the digital broadcast being broadcast, and receives the TS object data D1. Is transmitted to the formatter 608 in real time (step S41). At the same time, reception information D3 including program configuration information decrypted at the time of reception and ES_PID information to be described later (that is, information corresponding to data transmitted via a receiver and an interface of the system controller 520) is transmitted to the system controller 520. The data is captured and stored in the memory 530 (step S44).
[0088]
On the other hand, 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 recorded on the optical disc 100 (Step S43).
[0089]
In parallel with these, the file system / logical structure generator 521 creates logical information file data D4 using the program configuration information and ES_PID information included in the reception information D3 which is taken in at the time of reception and stored in the memory 530. (Step S24 and Step S25). After the recording of the series of TS object data D1, the logical information file data D4 is additionally recorded on the optical disc 100 (steps S46 and S47). The processing in steps S24 and S25 may also be performed after the end of step S43.
[0090]
Further, if necessary (for example, when a part of a title is edited), a user input I2 such as title information from the user interface 720 is added to the program configuration information and ES_PID information stored in the memory 530. Alternatively, the logical information file data D4 may be created by the system controller 520 and may be additionally recorded on the optical disc 100.
[0091]
As described above, the information recording / reproducing device 500 performs the recording process when the transport stream being broadcast is received and recorded in real time.
[0092]
Note that if all received data at the time of broadcasting is temporarily stored in the archive device and is used as the TS object source 700, the same processing as in the above-mentioned "when using a created TS object" is sufficient.
[0093]
(I-3) When recording video, audio, and sub-picture data:
This case will be described with reference to FIGS. In FIG. 17, the same steps as those in FIG. 15 are denoted by the same step numbers, and the description thereof will be omitted as appropriate.
[0094]
When recording separately prepared video data, audio data, and sub-picture data, the video data source 711, the audio data source 712, and the sub-picture data source 713 each include a recording storage such as a video tape or a memory. , Video data DV, audio data DA, and sub-picture data DS.
[0095]
These data sources receive the video data DV, the audio data DA, and the sub-picture data DS under the control of the control signal Sc8 instructing data reading from the system controller 520, respectively, for the video encoder 611, the audio encoder 612, and the sub-picture data. It is sent to the picture encoder 613 (step S61). Then, a predetermined type of encoding process is executed by the video encoder 611, the audio encoder 612, and the sub-picture encoder 613 (step S62).
[0096]
Under the control of the control signal Sc6 from the system controller 520, the TS object generator 610 converts the data thus encoded into TS object data forming a transport stream (step S63). At this time, the data arrangement information (for example, recording data length and the like) of each TS object data and the configuration information (for example, ES_PID and the like described later) of each elementary stream are sent from the TS object generator 610 to the system controller 520 as information I6. And stored in the memory 530 (step S66).
[0097]
On the other hand, the TS object data generated by the TS object generator 610 is sent to the (2) side of the switch Sw1 of the formatter 608. That is, when the TS object data from the TS object generator 610 is formatted, the formatter 608 is switching-controlled by the switch control signal Sc5 from the system controller 520 to set the switch Sw1 to the (2) side and set the switch Sw2 to the (1). Side, the TS object data is output (step S64). Subsequently, the TS object data is recorded on the optical disc 100 via the modulator 606 (step S65).
[0098]
In parallel with these, the file system / logical structure generator 521 converts the logical information file data D4 by using the data arrangement information of each TS object data and the configuration information of each elementary stream taken into the memory 530 as the information I6. It is created (Step S24 and Step S25). After the recording of the series of TS object data D2 is completed, it is additionally recorded on the optical disc 100 (steps S67 and S68). Note that the processes of steps S24 and S25 may be performed after the end of step S65.
[0099]
Further, if necessary (for example, when a part of a title is edited), a user input I2 such as title information from the user interface 720 is added to the information stored in the memory 530, so that the file system can be used. The logical information file data D4 may be created by the / logical structure generator 521, and may be additionally recorded on the optical disc 100.
[0100]
As described above, the information recording / reproducing apparatus 500 performs the recording process when recording separately prepared video data, audio data, and sub-picture data.
[0101]
Note that this recording process is also applicable when recording any content owned by the user.
[0102]
(I-4) When recording data by authoring:
This case will be described with reference to FIGS. In FIG. 18, the same steps as those in FIG. 15 are denoted by the same step numbers, and the description thereof will be omitted as appropriate.
[0103]
In this case, by combining the recording processes in the above three cases, the authoring system generates a TS object, generates logical information file data in advance (step S81), and performs switching control performed by the formatter 608. The process is terminated (step S82). Thereafter, the information obtained by this operation is transmitted as disc image data D5 to the modulator 606 provided before and after the disc master cutting machine (step S83), and a master is created by the cutting machine (step S84).
[0104]
In the present embodiment, in particular, in the configuration and operation of the recording system (i) described above, while a period from the start to the end of recording is logically recorded as one title 200, a plurality of play-backs are performed on the plurality of content information A plurality of playlist sets 126S each including the list 126 are recorded. Moreover, each TS object in the object data file 120 is recorded in units of "switch units" for performing angle switching during reproduction, as described later in detail. Therefore, as described below, during reproduction of the information recording medium, control is performed to select a playlist corresponding to a desired program, a desired angle block, or the like from among a plurality of playlists 126 included in each playlist set 126S. , The desired content information can be reproduced as a title. Moreover, during the reproduction, the angle switching can be performed seamlessly at each boundary of the switch unit in accordance with the input of the angle switching instruction.
[0105]
In the present embodiment, particularly, in the configuration and operation of the recording system (i) described above, for example, in the case of a DVD-ROM application (that is, in the case of (i-4)), a plurality of parental blocks, angle blocks, and the like are used. Content information forming a plurality of blocks is recorded as a transport stream or the like. For example, in the case of a DVD recorder application (that is, in the case of (i-2) or the like), content information forming a plurality of programs streamed into the same transmission wave or the same transmission signal is recorded as a transport stream or the like. Alternatively, for the same title, for each video reproduction function (video performance) required by the information reproduction system, such as content information corresponding to high definition and normal video, content information corresponding to surround speakers and content information corresponding to monaural, etc. Various kinds of content information prepared for each required function, such as for each audio playback function (audio performance), are recorded as a transport stream or the like. At the time of such recording, a plurality of playlist sets each including a plurality of playlists 126 for each of the plurality of pieces of content information are recorded while logically recording from the start to the end of the recording as one title 200. 126S is recorded. Therefore, as described below, when the information recording medium is reproduced, it corresponds to a desired program, a desired parental block, a desired angle block, etc. among a plurality of playlists 126 included in each playlist set 126S. By executing the control of selecting a desired content information, the desired content information can be reproduced as a title.
[0106]
(Ii) Configuration and operation of the reproduction system:
Next, with reference to FIG. 14 and FIG. 19, a specific configuration and operation of each component constituting a reproduction system in the information recording / reproducing apparatus 500 will be described.
[0107]
In FIG. 14, a title to be reproduced from the optical disc 100 and reproduction conditions thereof are input to a system controller as a user input I2 such as title information by a user interface 720. At this time, in the user interface 720, under the control of the control signal Sc4 from the system controller 520, input processing according to the content to be reproduced, such as selection via the title menu screen, is enabled.
[0108]
In response to this, the system controller 520 controls disc reproduction for the optical disc 100, and the optical pickup 502 sends a read signal S7 to the demodulator 506.
[0109]
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. The logical information file data (that is, the file system 105, the disk information file 110, the P list information file 120, and the object information file 130 shown in FIG. 3) included in the demodulated data D8 as the information part that is not multiplexed is , To the system controller 520. Based on the logical information file data, the system controller 520 performs various reproduction controls such as a reproduction address determination process and control of the optical pickup 502.
[0110]
On the other hand, the TS object data included in the demodulated data D8 as the multiplexed information part is demultiplexed by the demultiplexer 508 under the control of the control signal Sc2 from the system controller 520. Here, when the access to the reproduction position address is completed by the reproduction control of the system controller 520, the control signal Sc2 is transmitted so as to start the demultiplexing.
[0111]
From the demultiplexer 508, a video packet, an audio packet, and a sub-picture packet are respectively transmitted and supplied to the video decoder 511, the audio decoder 512, and the sub-picture decoder 513. Then, the video data DV, the audio data DA, and the sub-picture data DS are respectively decoded.
[0112]
Note that the PAT or PMT packetized packet included in the transport stream shown in FIG. 6 is included as a part of the demodulated data D8, but is discarded by the demultiplexer 508.
[0113]
The adder 514 receives the video data DV and the sub-picture data DS decoded by the video decoder 511 and the sub-picture decoder 513, respectively, at a predetermined timing under the control of the control signal Sc3 instructing the mixing from the system controller 520. Mixing or superimposing. The result is output as a video output from the information recording / reproducing device 500 to, for example, a television monitor.
[0114]
On the other hand, the audio data DA decoded by the audio decoder 512 is output as an audio output from the information recording / reproducing device 500 to, for example, an external speaker.
[0115]
The still image object output from the demodulator 506 is sent to the still image decoding unit 517, and the still image is decoded and reproduced. The reproduction of the still image object will be described later.
[0116]
Here, a specific example of the reproduction processing routine by the system controller 520 will be described with reference to the flowchart of FIG.
[0117]
In FIG. 19, as the initial state, the recognition of the optical disk 100 by the reproduction system and the recognition of the volume structure and file structure by the file system 105 (see FIG. 3) have already been performed by the system controller 520 and the file system / logical structure reader 522 therein. It is assumed that the process has been completed. Here, a process flow after acquiring the total number of titles from the disc general information 112 in the disc information file 110 and selecting one of the titles 200 will be described.
[0118]
First, the title 200 is selected by the user interface 720 (step S211). In response to this, the system controller 520 acquires information about the reproduction sequence from the reading result of the file system / logical structure reader 522. In selecting the title 200, a desired one of a plurality of title elements 200-2 (see FIG. 4) constituting the title 200 may be selected by an external input operation using a remote controller or the like by the user. However, one title element 200-2 may be automatically selected according to a system parameter or the like set in the information recording / reproducing device 500.
[0119]
Next, the contents of a plurality of playlists 126 constituting the playlist set 126S corresponding to the selected title 200 (title element 200-2) are acquired. Here, as the processing of the logical layer, the structure of each play list 126 and the information (see FIGS. 5, 6, and 13) of each item 204 constituting the play list 126 are obtained (step S212).
[0120]
Next, from among the plurality of playlists 126 acquired in step S212, the contents of the playlist 126 to be reproduced are acquired. Here, for example, it is assumed that the reproduction is first started from the playlist # 1, and the content of the playlist 126 corresponding to the reproduction is acquired (step S213). The content of the playlist 126 is one or a plurality of playlist elements 126-2 (see FIG. 5) and the like, and in the acquisition processing in step S213, the playlist element 126-2 and the like are acquired.
[0121]
Subsequently, the pre-command 126PR (see FIG. 5) included in the play list 126 is executed (step S214). Note that it is also possible to select one of a plurality of playlists 126 having a fixed relationship that constitute the playlist set 126S by the pre-command 126PR. If the playlist element 126-2 constituting the playlist 126 does not have the pre-command 126PR, this processing is omitted.
[0122]
Next, a TS object 142 (see FIGS. 3 and 10) to be reproduced is determined based on the item 204 (see FIGS. 5 to 7) specified by the play list 126 acquired in step S213 (step S215). ). More specifically, the object information file 130 (see FIG. 3) relating to the TS object 142 to be reproduced is obtained based on the item 204, and the stream number, address, etc. of the TS object 142 to be reproduced are specified. I do.
[0123]
In this embodiment, AU (association unit) information 132I and PU (presentation unit) information 302I to be described later are also acquired as information stored in the object information file 130. Based on the acquired information, the above-described association from the logical hierarchy to the object hierarchy (see FIG. 13) is performed.
[0124]
Next, the reproduction of the TS object 142 determined in step S215 is actually started. That is, the processing of the object hierarchy is started based on the processing of the logical hierarchy (step S216).
[0125]
During the reproduction process of the TS object 142, it is determined whether or not the next item 204 constituting the playlist 126 to be reproduced exists (step S217). Then, as long as the next item 204 exists (Step S217: Yes), the process returns to Step S215, and the above-described determination and reproduction processing of the TS object 142 is repeated.
[0126]
On the other hand, if the next item 204 does not exist in the determination in step S217 (step S217: No), the post command 126PS (see FIG. 5) corresponding to the play list 126 being executed is executed (step S218). Note that this process is omitted if the playlist element 126-2 included in the playlist 126 does not have the post command 126PS.
[0127]
Thereafter, it is determined whether or not the next play list 126 constituting the selected title 200 exists (step S219). If it exists (step S219: Yes), the process returns to step S213, and the processing after the acquisition of the play list 126 to be reproduced is repeatedly executed.
[0128]
On the other hand, if it is determined in step S219 that the next playlist 126 does not exist (step S219: No), that is, the reproduction of all the playlists 126 to be reproduced in accordance with the selection of the title 200 in step S211 has been completed. If so, the series of reproduction processing ends.
[0129]
As described above, the reproduction process of the optical disc 100 by the information recording / reproducing apparatus 500 of the present embodiment is performed.
[0130]
In the present embodiment, in particular, in the processing of the logical hierarchy in steps S211 to S214 of FIG. 19 and the processing of associating the logical hierarchy with the object hierarchy in S215, a plurality of playlists included in each playlist set 126S specified by the title 200 One of the 126 is selected as described later in detail, and the content information is reproduced in a reproduction sequence defined by the selection. For example, for a DVD recorder application or a DVD-ROM, of a plurality of playlist information included in each playlist set 126S recorded as one title, a desired program, a desired parental block, a desired angle block, Select the one corresponding to the desired content information, such as a version that can be actually played back by each information playback system in terms of functionality, or a version that efficiently or maximizes the functions of each information playback system. Thus, the desired content information can be reproduced as the title 200.
[0131]
[Selection method of playlist in playlist set]
In this embodiment, the playlist 126 corresponding to the desired content information is appropriately selected from the playlist set 126S included in the reproduced playlist information file 120.
[0132]
For such a playlist selection, for example, the pre-command 200RP (see FIG. 4) included in the title element 200-2 includes, for each playlist 126, a playlist selection command group list in which selection conditions are described. May be performed according to this selection condition. Attribute information added to each playlist 126 stored in the playlist set 126S (e.g., related to playlists such as video resolution for video functions, progressive / interleaved, video codec, number of audio channels, audio codec, etc.) (Information indicating the attribute of the content information). Alternatively, it may be performed in accordance with the playlist set control information that stores the selection condition for each playlist included in the title element 200-2. By such a selection, it is possible to select, for example, a desired program, a desired parental block, a desired angle block, or the like corresponding to desired content information. Alternatively, for example, it is possible to select a play list that can be reproduced by the information reproducing system and preferably makes full or maximum use of the video reproducing function and the audio reproducing function of the information reproducing system.
[0133]
[Still image playback]
Next, the reproduction of a still image will be described in detail.
[0134]
(Still image object)
FIG. 20 shows the data structure of the still image object. The still image object 142ST is included in the object data file 140 as shown in FIG. As shown in FIG. 20, the still image object 142ST includes an image number 142ST-1, a plurality of still image data 142ST-2, and other information 142ST-3. The image number 142ST-1 indicates the number of still image data 142ST-2 included in the still image object 142ST, that is, the number of still images. Each still image data 142ST-2 can be, for example, JPEG format data, but is not limited thereto.
[0135]
(Items for still images)
Next, a still image item used during still image reproduction will be described. The above-described still image object 142ST can be recorded on the optical disc 100 described so far. Then, at the time of reproduction, the still image object 142ST is reproduced according to a play list composed of still image items. Thereby, a plurality of still images can be reproduced by various reproduction (presentation) methods such as a slide show.
[0136]
In the case of a still image, the data structure relating to the playlist is basically the same as that described above. That is, as shown in FIG. 3, a plurality of playlist sets 126S are included in the playlist information file 120, and the playlist set 126S includes a plurality of playlists 126 as shown in FIG. Items 204. Then, as shown in FIG. 7, the item 204 can include a still image object item 204ST in addition to the stream object item 204.
[0137]
FIG. 21 shows the hierarchical structure of the still image object items. In FIG. 21, the still image item 204ST includes an item type 710, a still image object play item 720, and other data 730.
[0138]
The item type 710 is information indicating whether the item is an item for a stream object, an item for a still image object, or another play item. Of course, the play item 402ST for a still image includes, as the item type 710, information indicating that the play item is a play item for a still image object. Therefore, actually, whether a plurality of items on the optical disc 100 are items for a stream object or items for a still image object is identified by referring to the item type 710.
[0139]
If the item is for a still image, the play item 402ST includes a still image object play item 720. The still image object play item 720 basically includes various information indicating a reproduction method of the still image object. Specifically, as shown in FIG. 21, the image index number 721, the number of images 722, and the It includes a display time (duration time) 723, a still image X position 724, a still image Y position 725, a background color 726, a still effect (Still Effect) 730, and other information 728.
[0140]
Describing each information, first, the image index number 721 indicates the index number of the still image included in the corresponding still image object 142ST. The number of images 722 indicates the number of still images included in the item 402ST. The still image total display time 723 indicates a time width for reproducing (displaying) a still image. The total still image display time is defined to include a start transition time and an end transition time described later.
[0141]
The still image X position 724 indicates the display position of the corresponding still image in the X-axis direction, and the still image Y position 725 indicates the display position of the corresponding still image in the Y-axis direction. The background color 726 indicates a color displayed on the background of the still image. As a method of displaying a still image object to be displayed, for example, a plurality of still images can be sequentially switched and displayed like a slide show. In such a case, a single-color background image is usually displayed during the display switching between the previous still image and the next still image, and the background color indicates the color of the background image. As the background color, for example, red, blue, green, or the like can be used.
[0142]
The still effect 730 is information on a display method of a still image object, and mainly defines a transition (transition) effect when a plurality of still images are switched. Specifically, the still effect 730 includes an external cross transition flag 731, an external start transition type 732, an external end transition type 733, an external start transition time 734, an external end transition time 735, and an internal cross transition flag 741. , An internal start transition type 742, an internal end transition type 743, an internal start transition time 744, an internal end transition time 745, and other information 750. Hereinafter, these will be described.
[0143]
FIG. 22 schematically shows a state in which presentation (display) of one still image is started by the slide-in method and is ended by the slide-out method. As shown in FIG. 22, from the display state of the background image, a still image is displayed by slide-in, and the display state is again shifted to the display state of the background image by slide-out. As described above, the time from the start to the end of the presentation of one still image object is indicated by the total still image display time. When one still image is displayed, the period from the start of the display to the completion of the display of one still image is called a start transition, from the state in which one still image is displayed to the end of the display. Is called an end transition. The time required for a start transition is called a start transition time, and the time required for an end transition is called an end transition time.
[0144]
FIG. 23 schematically illustrates a state in which a plurality of still images (# 1 to #n) are sequentially displayed by one still image item. Each still image is displayed by the slide-in and slide-out methods shown in FIG. When a plurality of still images are sequentially displayed as described above, a transition (switching) period between them is called a transition. Then, as shown in FIG. 23, a transition between a plurality of still images defined by one item is called “internal transition” IT, and transitions located at the beginning and end of one item are called “external transition” ET. Call.
[0145]
As described above, in the information in the still effect 730 shown in FIG. 21, the external start transition type 732 indicates the type of start transition of the first still image of a plurality of still images defined by one item, and the external start transition time 734 indicates the period (time width). Here, as the type of transition, for example, in addition to the slide method (slide-in and slide-out) shown in FIG. 22, any one of wipe, dissolve, and the like can be defined. This is also true for other transition types. The external end transition type 733 indicates the type of end transition of the last still image among a plurality of still images defined by one item, and the external end transition time 735 indicates the period.
[0146]
Similarly, the internal start transition type 742 indicates the type of transition on the start side in the transition between a plurality of still images defined by one item, and the internal start transition time 744 indicates the period (see FIG. 22). The internal end transition type 743 indicates the type of transition on the end side in the transition between a plurality of still images defined by one item, and the internal end transition time 745 indicates the period (see FIG. 22).
[0147]
Therefore, when a plurality of still images are displayed in order by one item, the display start of the first still image is performed over the period (time width) specified by the external start transition time 734 according to the external start transition type 732. . Further, the display of each of the plurality of still images in the subsequent item ends in the period of the internal end transition time 743 according to the internal end transition type 741, and is displayed in the period of the internal start transition time 744 according to the internal start transition type 742. Be started. This process is repeated for a plurality of still images defined by one item. Then, when the display of the last still image among the plurality of still images defined by the item ends, the display ends in the period of the external end transition time 735 by the method defined in the external end transition type 733.
[0148]
From the above, regarding the transition of a plurality of still images defined by one item, the type and duration of the start transition of the still image at the beginning of the item, the type and duration of the end transition of the still image at the end of the item, The type and time of the start transition of each of the plurality of still images defined by the item, and the type and time of the end transition of each of the plurality of still images defined by the play item can be independently defined. However, the types and times of the internal start transitions of a plurality of still images included in one item need to be the same. For example, the start transition of the second still image is set to m seconds by a wipe, and the start transition of the third still image is performed. It is not possible to make different settings, such as setting the start transition to n seconds (n ≠ m) on a slide. This also applies to a plurality of internal end transitions included in one item. Therefore, for still images other than the beginning or end of one item, all the same transition types (for example, slides) and start transitions are executed in the same period, and all the same transition types (for example, wipes) and The end transition is executed in the same period.
[0149]
Next, the cross transition will be described. The cross transition is one mode of the above-described transition, and in the transition from the previous still image to the next still image, the end transition of the previous still image and the start transition of the next still image are performed simultaneously.
[0150]
FIG. 24 schematically shows an outline of the cross transition. In FIG. 24, a normal transition and a cross transition exist as transitions of two consecutively displayed still images (the previous still image is an image of an airplane, and the next still image is an image of a ship). I do. The normal transition is the transition described above, and is basically a method of executing the start transition of the next still image after the end transition of the previous still image is completed. That is, as shown in the lower part of FIG. 24, the display of the previous still image (the image of the airplane) is completely finished, and after the background image is displayed for a moment, the display of the next still image (the image of the ship) starts. Will do.
[0151]
On the other hand, the cross transition is a method in which the end transition of the previous still image and the start transition of the next still image are simultaneously performed in parallel. Therefore, as shown in the upper part of FIG. 24, the previous image (the image of the airplane) gradually slides to the left of the screen, and at the same time, the next image (the image of the ship) starts from the right of the screen. Slide in. Therefore, unlike the case of the normal transition, the background image is not displayed during the transition.
[0152]
An external cross transition flag 731 and an internal cross transition flag 741 in the still effect 730 shown in FIG. 21 are flags indicating whether or not to perform the above-described cross transition in a transition between two still images. When the flag is set to “1”, a cross transition is executed, and when the flag is set to “0”, a normal transition is executed. When the external cross transition flag 731 is set to “1”, a cross transition is executed in a transition between the still image at the end of the item and the still image at the beginning of the next play item. When the internal cross transition flag is set to “1”, the cross transition is executed in all transitions between a plurality of still images defined by the play item.
[0153]
As can be understood from FIG. 24, in the normal transition, there is no problem even if the end transition time of the previous still image is different from the start transition time of the next still image. However, when performing a cross transition, the end transition of the previous still image and the start transition of the next still image must be performed during the same cross transition time. Therefore, when performing an internal cross transition, the playback device executes the transition with the setting of the start transition being valid and the setting of the end transition being invalid. Specifically, when the internal cross transition flag 741 in a certain play item is set to “1”, the internal start transition type 742 and the internal start transition time 744 are made valid, and the cross transition is executed in accordance therewith. For example, the internal start transition type 742 is set to slide, the internal end transition type 743 is set to wipe, the internal start transition time 744 is set to m seconds, and the internal end transition time 745 is set to n seconds. If (n ≠ m) is set, the transition type is slide, and the cross transition is executed with a cross transition time of m seconds.
[0154]
The same can be applied to the case of an external cross transition. That is, when the external cross transition flag 731 in a play item is set to “1”, in the external transition between the still image at the end of the play item and the start still image of the next play item, Perform a cross transition. In this case, the transition type and the cross transition time may be the external start transition type 732 and the external start transition time 734 of the next item.
[0155]
Note that the total playback time of a still image by a play item differs depending on whether an internal cross transition is performed for one item. This will be described with reference to FIG. As shown in FIG. 25, now, the internal start transition time 744 of the still image included in a certain play item = “a”, the internal end transition time 745 = “c”, and the remaining time (that is, from the total still image display time) The time obtained by subtracting the internal start transition time and the internal end transition time) is “b”. When the internal cross transition flag is set to “0” (= OFF) and the number of still images (the number of images) defined by the item is n, the total playback time of one item is = (a + b + c) × n It becomes. On the other hand, when the internal cross transition flag is set to “1” (= ON) and the number of still images (the number of images) defined by the item is n, the total playback time of one play item is = (a + b) ) × n + c. This is because the internal cross transition causes the internal end transition time 745 for each still image to be ignored.
[0156]
(Still image playback processing)
Next, reproduction of a still image using a still image item will be described. FIG. 26 shows an example of the internal configuration of the still image decoding unit 517 of the information recording / reproducing apparatus shown in FIG. As shown in FIG. 26, the still image decoding unit 517 includes a still image decoder 517c, a switch SW3, a video buffer 517a, a video buffer 517b, and an image synthesizer 517d. The video buffer 517a and the video buffer 517b are used to store one piece of still image data in the above-described still image transition.
[0157]
With reference to FIGS. 14 and 26, a basic operation in still image reproduction will be described. The system controller 520 controls disc reproduction for the optical disc 100, and the optical pickup 502 outputs a read signal S7 to the demodulator 506. The demodulator 506 demodulates the recording signal S8 from the read signal S7, supplies the demodulated signal S8 to the system controller 520 as demodulated data D8, and supplies the demodulated data D8 to the still image decoding unit 517. The system controller 520 extracts logical information file data (including the playlist information file 120 and the object information file 130) from the demodulated data D8, determines a reproduction address based on the extracted logical information file data, and controls the disc and the pickup. As a result, the still image object included in the demodulated data D8 is sent to the still image decoding unit 517 in the form of a packet.
[0158]
In the still image decoding unit 517 having the configuration shown in FIG. 26, the still image object received by the still image decoder 517c is decoded to generate still image data, and stored in the video buffer 517a or 517b via the switch SW3. Here, by controlling the switch SW3, the system controller 520 alternately stores still image data to be continuously reproduced in the video buffers 517a and 517b in accordance with the item for the still image. Then, at the time of the transition of the still image, the system controller 520 controls the image synthesizer 517d to execute the transition according to the setting in the still effect 730 described above. The still image data DST synthesized by the image synthesizer 517d is displayed on a display device or the like.
[0159]
Next, switching of still image data in a transition will be described. FIG. 27 shows the data storage state of the video buffers 517a and 517b in the case of a normal transition. The example of FIG. 27 illustrates a normal transition from the still image #n to the still image # n + 1. At time T1 during the steady reproduction time of the still image #n, the still image #n is stored in the video buffer 517a, and the still image is being reproduced. The other video buffer 517b has stored one previous still image, but after that the data is discarded and becomes empty. In the empty video buffer 517b, the still image # n + 1 during the transition period and the still image # n + 1 are stored by the switching time T2.
[0160]
In the transition period, the still image #n is output from the video buffer 517a until the switching time T2. However, when the switching time T2 arrives and the output of the still image # n + 1 from the video buffer 517b starts, the video buffer 517a is output. Is discarded. Thereafter, as shown in the figure, the still image # n + 1 is read out while being stored in the video buffer 517b, and the other video buffer 517a is empty. However, the next still image # n + 2 is stored in the video buffer 517a by the next transition switching time. As described above, when the still images #n and # n + 1 are switched without an interval (non-display time) at the switching time T2, the next still image needs to be stored in the other video buffer by the switching time. is there. However, when an interval may occur at the switching time, the transition can be performed using only one video buffer.
[0161]
Next, switching of still image data in a cross transition will be described. FIG. 28 shows the data storage state of the video buffers 517a and 517b in the case of a cross transition. The example in FIG. 28 illustrates a cross transition from a still image #n to a still image # n + 1. Time T4 is a steady reproduction period of the still image #n, and the still image #n is stored in the video buffer 517a. The other video buffer 517b is empty at the time T4, but the still image # n + 1 is decoded and stored in the buffer 517b by the time T5 when the cross transition starts.
[0162]
At time T5, the still image #n is stored in the video buffer 517a, and the still image # n + 1 is stored in the video buffer 517b. The image synthesizer 517d synthesizes the outputs from both buffers 517a and 517b and performs a cross transition. When the cross transition period ends at time T6, the still image #n stored in the video buffer 517a is discarded, and the video buffer 517a becomes empty. Note that the next still image # n + 2 is stored in the video buffer 517a until the next cross transition period.
[0163]
Next, the reproduction process of the still image playlist will be described with reference to the flowcharts of FIGS. FIG. 29A shows a main routine for reproducing a still image playlist. The following processing is basically performed under the control of the system controller 520. First, the system controller 520 reads a playlist (step S201), and sequentially reproduces a plurality of still image items included in the playlist (step S202). Then, when the reproduction of the still image has been completed up to the last item (step S203; Yes), the process ends.
[0164]
FIG. 30 shows details of the still image play item reproduction step (step S202) shown in FIG. 29A in the case of a normal transition. First, the system controller 520 reads the data of the still image # 1 into one of the video buffers 517a and 517b (here, temporarily assumed to be the video buffer 517a) based on the image index number 721 shown in FIG. 21 (step S211). ), An external start transition is executed based on the external start transition type 732 and the external start transition time 734 in the still effect 730 (step S212). After the end of the external start transition, a stationary display period of the still image # 1 is entered, and the still image # 1 is displayed (step S213).
[0165]
Then, the system controller 520 determines whether or not the still image is the last still image in the item (step S214). If not, the next still image data (still image # 2 in this example) Is read into the other video buffer (the one not storing the previous still image # 1 in step S211; here, the video buffer 517b) (step S215), and the still image currently being reproduced (still image in this example) Wait for the end of the regular display time of # 1) (step S216).
[0166]
As shown in FIG. 29B, the process of waiting for the end of the steady display time is performed by first reading the system clock by the system controller 520 (step S241) and determining whether the steady display time has elapsed (step S241). Step S242). The stationary display time is a period during which the still image is completely displayed (that is, a period other than the transition period), and specifically, the total display time of the still image in the still image object play item 720 in FIG. 723 is obtained by subtracting the internal start transition time 744 and the internal end transition time 745. After the steady display time has elapsed, the display time of the still image ends (step S242; Yes), and the process returns to the routine of FIG. Then, the internal end transition is executed according to the internal end transition type 743 and the internal end transition time 745 in the still effect 730 (step S217). Subsequently, according to the internal start transition type 742 and the internal start transition time 744, the internal start transition of the still image # 2 already read into the video buffer 517b in step S215 is executed (step S218). When the internal start transition of still image # 2 ends, stationary display of still image # 2 is performed as it is (step S213).
[0167]
In this way, steps S213 to S218 are repeatedly executed until the last still image included in the item being reproduced is reproduced, and a plurality of still images are sequentially reproduced with a transition effect according to the setting in the still effect 730. . Then, when the reproduction order of the last still image is reached (step S214; Yes), the end of the stationary display time of the still image is waited for (step S219). This processing is the same as that described above with reference to FIG. Then, when the steady display time of the last still image ends, the system controller 520 executes the external end transition of the item according to the external end transition type 732 and the external end transition time 735 (step S220). Thus, the reproduction of one still image play item ends.
[0168]
Next, a still image play item reproduction process (step S202) in the case of a cross transition will be described with reference to FIG. The still image play item reproduction process in the case of the cross transition is such that after the steady display time of one still image has elapsed in step S216, a cross transition is performed instead of performing an internal end transition and an internal start transition (step S221). Although different from the case of the normal transition, the other points are the same as the case of the normal transition.
[0169]
As described above, according to the present embodiment, when a still image object is reproduced in accordance with a still image item included in a playlist, a transition (transition) in continuous reproduction of a plurality of still images in the still image item is performed. Records information on the effects. Therefore, various transitions can be executed based on the set transition effect (ie, transition type, transition time, whether to perform a cross transition or a normal transition, etc.), and change the reproduction of a still image. be able to. In addition, since a plurality of still images are set for each item and the transition effect is set, various transition effects can be set with a smaller amount of information as compared with a case where the transition effect is set for each still image. .
[0170]
In the above-described embodiment, the optical disc 100 is described as an example of the information recording medium, and the recorder or the player according to the optical disc 100 is described as an example of the information reproducing and recording apparatus. However, the present invention is limited to the optical disc and the recorder or player. Instead, the present invention can be applied to other various information recording media compatible with high-density recording or high transfer rate, and a recorder or player thereof.
[0171]
In addition, the present invention is not limited to the above-described embodiment, and can be appropriately modified without departing from the gist or idea of the invention which can be read from the claims and the entire specification, and such changes are accompanied. 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 are also included in the technical scope of the present invention. Things.
[Brief description of the drawings]
FIG. 1 shows a basic structure of an optical disc which is an embodiment of an information recording medium of the present invention, wherein 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 a radial direction.
FIG. 2 is a schematic conceptual diagram of a conventional MPEG2 program stream (FIG. 2A) and a schematic conceptual diagram of an MPEG2 transport stream used in the present embodiment (FIG. 2B).
FIG. 3 is a diagram schematically showing a data structure recorded on the optical disc of the embodiment.
FIG. 4 is a diagram schematically showing a data structure of the title shown in FIG. 3;
FIG. 5 is a diagram schematically showing a data structure of a playlist set shown in FIG. 3;
FIG. 6 is a diagram conceptually showing the structure of a playlist set.
FIG. 7 is a diagram schematically illustrating a data structure of a transport stream object item and a still image object item.
FIG. 8 is a diagram conceptually showing the structure of a title element when a playlist set has a plurality of playlists.
FIG. 9 is a diagram conceptually showing the structure of a title element when a playlist set has a single playlist.
FIG. 10 is a diagram schematically showing details of a data structure in each object shown in FIG. 3;
FIG. 11 is a diagram illustrating an example in which the elementary stream for the upper program # 1 and the elementary stream for the middle program # 2 in the present embodiment are multiplexed to form a transport stream for these two programs It is a figure which shows a situation notionally with a horizontal axis as a time axis.
FIG. 12 conceptually shows an image of TS packets multiplexed in one transport stream in the present embodiment as a packet arrangement along time.
FIG. 13 is a diagram schematically showing a logical configuration of data on an optical disc in the embodiment, focusing on development from a logical hierarchy to an object hierarchy or an entity hierarchy.
FIG. 14 is a block diagram of an information recording / reproducing apparatus according to an embodiment of the present invention.
FIG. 15 is a flowchart showing a recording operation (1) of the information recording / reproducing apparatus in the embodiment.
FIG. 16 is a flowchart showing a recording operation (part 2) of the information recording / reproducing apparatus in the embodiment.
FIG. 17 is a flowchart showing a recording operation (3) of the information recording / reproducing apparatus in the embodiment.
FIG. 18 is a flowchart showing a recording operation (part 4) of the information recording / reproducing apparatus in the embodiment.
FIG. 19 is a flowchart showing a reproducing operation of the information recording / reproducing apparatus in the embodiment.
FIG. 20 is a diagram schematically illustrating a data structure of a still image object.
FIG. 21 is a diagram schematically showing a data structure of a play item for a still image.
FIG. 22 is a diagram illustrating a still image playback method according to a still image play item.
FIG. 23 is a diagram schematically showing a state of reproduction of a plurality of play items defined by still image play items.
FIG. 24 is a diagram for comparatively explaining a still image reproducing method using a normal transition and a cross transition.
FIG. 25 is a diagram illustrating a difference in the total playback time of a play item for a still image between when an internal cross transition is performed and when it is not performed.
26 is a block diagram showing elements related to still image reproduction in the video decoder shown in FIG.
FIG. 27 is a diagram illustrating data stored in a video buffer in the case of a normal transition.
FIG. 28 is a diagram illustrating data stored in a video buffer in the case of a cross transition.
FIG. 29 is a flowchart of still image playlist playback processing and normal display time end waiting processing included therein.
FIG. 30 is a flowchart of still image play item playback processing in the case of a normal transition during still image playlist playback processing.
FIG. 31 is a flowchart of still image play item playback processing in the case of a cross transition during still image playlist playback processing.
[Explanation of symbols]
100 optical disk
105 File System
110 Disk information file
120 Playlist information file
126 playlists
126S Playlist Set
130 Object information file
131 AU (Associate Unit) Table
132 AU
132I AU information
134 ES Map Table
134d ES address information
140 Object data file
142 TS (Transport Stream) Object
146 TS packet
200 titles
200-2 title element
204 items
302 PU (presentation unit)
302I PU information
500 Information recording / reproducing device
502 Optical Pickup
506 demodulator
508 demultiplexer
511 video decoder
512 audio decoder
513 Sub-picture decoder
520 System Controller
540 memory
606 modulator
608 formatter
610 TS Object Generator
611 Video Encoder
612 Audio Encoder
613 Sub-picture encoder

Claims (15)

Multiple still image information,
An external designating the start transition effect of the first still image information in a still image set composed of a plurality of still image information to be continuously reproduced and the end transition effect of the last still image information in the still image set Transition effect information,
An information recording medium, wherein internal transition effect information for designating a start transition effect and an end transition effect of each still image information among a plurality of still image information included in the still image set is recorded. The method according to claim 1, wherein each of the external transition effect information and the internal transition effect information includes transition effect type information indicating a type of the transition effect and transition effect time information indicating a period of the transition effect. Information recording medium as described. The information recording medium according to claim 2, wherein the external transition effect information includes external start transition effect type information, external end transition effect type information, external start transition effect time information, and external end transition effect time information. . The information according to claim 2, wherein the internal transition effect information includes internal start transition effect type information, internal end transition effect type information, internal start transition effect time information, and internal end transition effect time information. 5. recoding media. The internal start transition effect type information, the internal end transition effect type information, the internal start transition effect time information, and the internal end transition effect time information are the same for all the still images included in the still image set. The information recording medium according to claim 4, characterized in that: The playlist information defining a reproduction sequence of the plurality of still images is recorded, and the external transition effect information and the internal transition effect information are included in the playlist information. 6. The information recording medium according to claim 5. The information recording medium according to any one of claims 1 to 6, wherein the transition effect type information is a designation of one of a wipe display, a slide display, and a dissolve display of the still image information. First recording means for recording a plurality of pieces of still image information on an information recording medium;
An external designating the start transition effect of the first still image information in a still image set composed of a plurality of still image information to be continuously reproduced and the end transition effect of the last still image information in the still image set Second recording means for recording transition effect information on the information recording medium;
A third recording unit for recording, on the information recording medium, internal transition effect information specifying a start transition effect and an end transition effect of each still image information among a plurality of still image information included in the still image set. An information recording device characterized by the above-mentioned. A first recording step of recording a plurality of still image information on an information recording medium;
An external designating the start transition effect of the first still image information in a still image set composed of a plurality of still image information to be continuously reproduced and the end transition effect of the last still image information in the still image set A second recording step of recording transition effect information on the information recording medium;
A third recording step of recording, on the information recording medium, internal transition effect information specifying a start transition effect and an end transition effect of each still image information among a plurality of still image information included in the still image set. The information recording method characterized by the above-mentioned. An information reproducing apparatus for reproducing the information recording medium according to any one of claims 1 to 7,
Reading means for reading the plurality of still image information, the external transition effect information and the internal transition effect information from the information recording medium,
According to the external transition effect information, a start portion of the first still image information included in the still image set and an end portion of the last still image information included in the still image set are reproduced, and according to the internal transition effect information. An information reproducing apparatus, comprising: reproducing means for reproducing a start portion and an end portion of each piece of still image information among a plurality of pieces of still image information included in the still image set. An information reproducing method for reproducing the information recording medium according to any one of claims 1 to 7,
Reading the plurality of still image information, the external transition effect information and the internal transition effect information from the information recording medium,
According to the external transition effect information, a start portion of the first still image information included in the still image set and an end portion of the last still image information included in the still image set are reproduced, and according to the internal transition effect information. A reproduction step of reproducing a start portion and an end portion of each piece of still image information among a plurality of pieces of still image information included in the still image set. First recording means for recording a plurality of pieces of still image information on an information recording medium;
An external designating the start transition effect of the first still image information in a still image set composed of a plurality of still image information to be continuously reproduced and the end transition effect of the last still image information in the still image set Second recording means for recording transition effect information on the information recording medium;
Third recording means for recording on the information recording medium internal transition effect information specifying a start transition effect and an end transition effect of each still image information among a plurality of still image information included in the still image set;
Reading means for reading the plurality of still image information, the external transition effect information and the internal transition effect information from the information recording medium,
According to the external transition effect information, a start portion of the first still image information included in the still image set and an end portion of the last still image information included in the still image set are reproduced, and according to the internal transition effect information. An information recording / reproducing apparatus, comprising: reproducing means for reproducing a start part and an end part of each still image information among a plurality of pieces of still image information included in the still image set. A first recording step of recording a plurality of still image information on an information recording medium;
An external designating the start transition effect of the first still image information in a still image set composed of a plurality of still image information to be continuously reproduced and the end transition effect of the last still image information in the still image set A second recording step of recording transition effect information on the information recording medium;
A third recording step of recording, on the information recording medium, internal transition effect information specifying a start transition effect and an end transition effect of each still image information among a plurality of still image information included in the still image set;
Reading the plurality of still image information, the external transition effect information and the internal transition effect information from the information recording medium,
According to the external transition effect information, a start portion of the first still image information included in the still image set and an end portion of the last still image information included in the still image set are reproduced, and according to the internal transition effect information. A reproducing step of reproducing a start portion and an end portion of each still image information among a plurality of still image information included in the still image set. By running on a computer,
First recording means for recording a plurality of pieces of still image information on an information recording medium,
An external designating the start transition effect of the first still image information in a still image set composed of a plurality of still image information to be continuously reproduced and the end transition effect of the last still image information in the still image set Second recording means for recording transition effect information on the information recording medium,
The computer as third recording means for recording, on the information recording medium, internal transition effect information specifying a start transition effect and an end transition effect of each still image information among a plurality of still image information included in the still image set. An information recording program characterized by functioning. By running on a computer,
Reading means for reading the plurality of still image information, the external transition effect information, and the internal transition effect information from the information recording medium, from the information recording medium according to any one of claims 1 to 7,
According to the external transition effect information, a start portion of the first still image information included in the still image set and an end portion of the last still image information included in the still image set are reproduced, and according to the internal transition effect information. An information reproduction program for causing the computer to function as reproduction means for reproducing a start portion and an end portion of each piece of still image information among a plurality of pieces of still image information included in the still image set.

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