WO2006006571A1 - Dispositif de traitement de donnees - Google Patents

Dispositif de traitement de donnees Download PDF

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Publication number
WO2006006571A1
WO2006006571A1 PCT/JP2005/012788 JP2005012788W WO2006006571A1 WO 2006006571 A1 WO2006006571 A1 WO 2006006571A1 JP 2005012788 W JP2005012788 W JP 2005012788W WO 2006006571 A1 WO2006006571 A1 WO 2006006571A1
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WO
WIPO (PCT)
Prior art keywords
information
data
extended
recording
playback
Prior art date
Application number
PCT/JP2005/012788
Other languages
English (en)
Japanese (ja)
Inventor
Masanori Itoh
Hiroshi Yahata
Tomoyuki Okada
Original Assignee
Matsushita Electric Industrial Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2004204399A external-priority patent/JP2006031744A/ja
Priority claimed from JP2004204400A external-priority patent/JP2006031745A/ja
Priority claimed from JP2004204398A external-priority patent/JP2006033028A/ja
Priority claimed from JP2004204401A external-priority patent/JP2006033029A/ja
Application filed by Matsushita Electric Industrial Co., Ltd. filed Critical Matsushita Electric Industrial Co., Ltd.
Publication of WO2006006571A1 publication Critical patent/WO2006006571A1/fr

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
    • G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
    • G11B27/034—Electronic editing of digitised analogue information signals, e.g. audio or video signals on discs
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N9/804—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components
    • H04N9/8042—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components involving data reduction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N9/82—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only
    • H04N9/8205—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only involving the multiplexing of an additional signal and the colour video signal
    • H04N9/8227—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only involving the multiplexing of an additional signal and the colour video signal the additional signal being at least another television signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/84—Television signal recording using optical recording
    • H04N5/85—Television signal recording using optical recording on discs or drums

Definitions

  • the present invention relates to still image data and audio data on a recording medium capable of recording moving image data.
  • the present invention also relates to a technique for recording multimedia data including data of various formats such as data obtained from data broadcasting and managing the data.
  • DVD-RAM phase change type disc
  • BD Blu-ray disc
  • DVD—RAM and BD together with the practical application of MPEG (particularly MPEG2), the encoding standard for content digital video data and digital audio data (hereinafter referred to as “AV data”), ⁇ Recorded in the video (AV) technical field ⁇ Expected as a recording medium for playback. Since these optical discs can be used for computer applications, they are expected to become more popular in the future.
  • the types of DVD—RAM and BD recording devices can be broadly classified into two types depending on the type of content to be recorded. That is, a recording device capable of recording both moving images and still images, and a recording device capable of recording only moving images.
  • a recording apparatus capable of recording both moving images and still images is desired to have a function for enabling smooth reproduction of moving images and still images. For example, when moving images and still images are recorded on an optical disk, there are many opportunities for each data to be recorded in different data formats. However, for users, such differences may not be a problem and may be played back based on the order in which moving images and still images were recorded.
  • a play list may be created after recording a moving image and a still image. This is because playlists can be used to freely combine video playback sections and still image playback sections and specify the playback order. Furthermore, by using a playlist, You may want to play a standard-definition video format video such as MPEG in the playback section, and display a high-definition PEG data video in the still picture playback section.
  • a standard-definition video format video such as MPEG
  • the optical disk is a removable medium, it is desired to maintain compatibility between different types of recording devices. For example, if you use a recording device that can record both moving images and still images, save the moving images, still images, and playlists to a disc, and then the disc is loaded into a recording device that can record only moving images. . At this time, it is desirable that only the moving images recorded on the disc can be played back in the order desired by the user (for example, shooting order, saving order). After that, when a movie is added using a recording device capable of recording only the movie, and a playlist for movie playback is generated using that device, or an existing playlist is edited. It is desirable that both types of recording devices can be played back in the desired order.
  • Patent Document 1 discloses a technique for referring to a still image file using an entry point, a section marker, or the like. This makes it possible to manage video and still images together.
  • Patent Document 1 Japanese Patent Application Laid-Open No. 2004-5934
  • An object of the present invention is to manage moving images and other objects (for example, still images) based on a highly extensible data structure. More specifically, the object of the present invention is to provide a data structure capable of efficiently managing moving images and still images, and to record and Z or reproduce using such a data structure. It is to provide a device to realize. At the same time, it is necessary to provide recording compatibility and Z playback compatibility between a device that can record only moving images and a device that can record not only moving images but also still images.
  • the data processing apparatus can record a first object relating to a moving image and a second object of a type different from the first object on a recording medium.
  • the data processing device includes: a first receiving unit that receives the first object; a second receiving unit that receives the second object; first path information that specifies a reproduction path of only the first object; and A control unit that generates second path information for specifying the playback path of the first object and the second object that are mixed, and when the first object is received, specifies the first object as a playback unit Updating the first route information and the second route information, and when receiving the second object, a control unit that updates the second route information that specifies the second object as a reproduction unit; and A drive for recording the first object, the second object, the first path information, and the second management information on the recording medium.
  • the control unit may update the second route information using link information specifying the second object as a reproduction unit.
  • the data processing device further includes a processing unit that generates a moving image based on the second object and outputs the moving image as a third object.
  • the control unit may update the first path information using the third object as a reproduction unit.
  • the control unit may further update the second route information using the third object as a reproduction unit.
  • the control unit may generate attribute information that defines attributes relating to the first route information and the second route information, and store the attribute information in the second route information.
  • the control unit updates the first path information using the first object as a playback unit, and acquires link information for the first path information that identifies the playback unit to be updated. Then, the second route information may be updated with the link information.
  • the second reception unit may receive a still image as the second object.
  • the data processing apparatus further includes an interface unit that receives an instruction for specifying a playback path, and the control unit corresponds to the specified playback path, and includes the first part. At least one of route information and the second route information may be generated.
  • At least one piece of the second path information is recorded on the recording medium, and the interface One face unit receives an instruction to specify the second path information on the recording medium as a part of the playback path, and the control unit acquires link information to specify the second path information on the recording medium. Then, new second route information may be generated based on the link information.
  • the drive records the first path information and the first object so as to be independently readable, and the recording medium performs mixed recording and Z or mixed reproduction of the first and second objects.
  • the first route information and the first object may be read out by the device.
  • the recording medium may be an optical disc, and the drive may record the second path information on an outer periphery than a recording position of the first path information.
  • a moving image recording / playback and a moving image playlist While maintaining compatibility with recording and playback, it enables recording and playback of still images.
  • the number of still images that can be captured is not limited to a small number by the number of recordable section markers, and many still images can be recorded.
  • FIG. 1 is a diagram for explaining an example of the interface between a DVD recorder device and related equipment.
  • FIG. 2 is a block diagram of a DVD recorder drive device.
  • FIG. 3 is a block diagram of a DVD recorder having a semiconductor memory card and a hard disk drive device.
  • FIG. 4 is a diagram for explaining the continuous area on the disk and the amount of data stored in the track buffer. [5] This is a diagram for explaining the external appearance and physical structure of the disc.
  • FIG. 7 is a diagram for explaining the directory and file structure of a disk.
  • FIG. 8 is an explanatory diagram of the directory and file structure of still image data.
  • FIG. 9 is a diagram showing a configuration of a video object.
  • FIG. 10 is a diagram for explaining an MPEG system stream.
  • FIG. 11 is a diagram for explaining an MPEG-TS stream.
  • FIG. 12 is a diagram for explaining an MPEG-PS stream.
  • FIG. 13 is a diagram for explaining a TS packet.
  • FIG. 14 is a diagram for explaining a PAT table.
  • FIG. 15 is a diagram for explaining arrangement of video objects on a disc.
  • ⁇ 16 This is a diagram for explaining the data structure of video management information.
  • FIG. 18 is a diagram for explaining the relationship between PGC information, object information, and objects in video management information.
  • FIG. 19 is a block diagram showing a functional configuration of a playback device.
  • FIG. 20 is a block diagram showing a functional configuration of the recording apparatus.
  • FIG. 21 is a diagram showing a DVD-RAM disk 301 having a plurality of still image files (DSC objects) stored therein.
  • FIG. 24 is a data structure diagram in the case where extended information is included in the Section Marker management information. [25] It is a data structure diagram of extended information.
  • FIG. 26 is a data structure diagram (1) when the link information to the external extension information is described in the extension information.
  • FIG. 27 is a data structure diagram (2) when the link information to the external extension information is described in the extension information. [28] It is a configuration diagram of an external extended information file for still images.
  • FIG. 29 is a data structure diagram of the head part of a DCF basic file.
  • FIG. 30 is a diagram showing a detailed data structure of a DCF basic file.
  • FIG. 31 is a diagram showing a detailed data structure of a TIFF file conforming to the Exif standard.
  • FIG. 32 is a diagram showing a physical data arrangement on a DVD-RAM disk.
  • FIG. 33 (a) is a diagram showing the operation of the device when performing thumbnail display or searching for a DCF basic file based on a DCF basic file, and (b) when performing image display based on a DCF basic file. It is a figure which shows operation
  • FIG.34 (a) is a diagram showing the operation of the device when performing thumbnail display or searching for a DCF basic file based on the DCF basic file, and (b) when performing image display based on the DCF basic file. It is a figure which shows operation
  • FIG. 35 is a diagram showing a configuration of a DVD camcorder.
  • FIG. 36 is a diagram showing a device configuration when a DVD-RAM disk is inserted into a DVD-RAM drive of a DVD camcorder and accessed by a personal computer.
  • Extended information sub Data structure diagram of ID and copyright management information.
  • FIG. 41 is a data structure diagram when a pointer to thumbnail data is described in extended information.
  • FIG. 42 is a data structure diagram when a pointer to thumbnail data is described in extended information of Entry Point.
  • FIG. 44 is an explanatory diagram of the playback order of a program with a Still Section Marker attached.
  • FIG. 46 is a flowchart showing the operation of the device when recording a moving image and a still image.
  • FIG. 47 is a flowchart showing the operation of the device during playback of moving images and still images.
  • FIG. 48 is an explanatory diagram of a method of configuring a still-only program using Section Marker.
  • FIG. 51 is an explanatory diagram of a method for recording link image information to a still image file in extension information and recording MPEG-encoded still image data in the main part.
  • FIG. 53 is an explanatory diagram of a method for composing a still image only program by combining the main part obtained by MPEG encoding a still image and Section Marker.
  • FIG. 55 is an explanatory diagram of a method for recording link data to a still image file in extended information and recording special data in the main part.
  • FIG. 57 is an explanatory diagram of a method of composing a still-only program with a combination of special data and Section Marker.
  • FIG. 59 is an explanatory diagram of a data structure of a section marker having overlay attribute information
  • FIG. 60 is an explanatory diagram of the difference in display between when the section marker with overlay attribute information is added and when it is not.
  • FIG. 61 is a data structure diagram of Section Marker having a pointer to thumbnail data.
  • FIG. 62 is a data structure diagram of an entry point having a pointer to thumbnail data.
  • This is a data structure diagram in the case of recording a reference to a still image file in the extended information area of Entry Point management information.
  • FIG. 64 is a diagram showing video management information and extended video management information recorded on a DVD-RAM 315 by the DVD recorder of the second embodiment.
  • ⁇ 65 A diagram showing a structure of an original reproduction path information table and an extended original reproduction path information table according to the second embodiment.
  • FIG. 66 is a diagram showing the structure of a user playback path information table and an extended user playback path information table according to the second embodiment.
  • FIG. 68 is a flowchart showing a procedure for the DVD recorder to generate PGC information.
  • FIG. 69 is a diagram showing a relationship between user reproduction path information (U—PGC information) and extended user reproduction path information (v2-U—PGC information) according to Embodiment 2.
  • FIG. 71 is a diagram showing a relationship between user reproduction path information and extended user reproduction path information according to the third embodiment.
  • FIG. 73 A diagram showing the relationship between user playback path information and extended user playback path information according to Embodiment 3.
  • FIG. 74 A diagram showing a correspondence relationship between original reproduction path information # 1 and extended original reproduction path information # 1 according to Embodiment 4.
  • FIG. 75 A diagram showing the relationship between user playback path information and extended user playback path information according to Embodiment 4.
  • FIG. 76 is a diagram showing a data structure of extended user-defined playback path information # 1 (v2-U—PGC # 1) according to Embodiment 5.
  • the recording medium is a DVD-RAM and the data processing device is a DVD recorder. Since a normal DVD recorder also has a playback function, the playback process will be explained using the DVD recorder.
  • the configuration and operation relating only to the playback function can be realized as a V and DVD player having a playback function and no recording function.
  • FIG. 1 is a diagram for explaining an example of an interface between a DVD recorder and related devices.
  • the DVD recorder is loaded with a DVD, which is an optical disc, and records and plays back video information.
  • the operation is generally performed with a remote controller.
  • the video information input to the DVD recorder includes both an analog signal and a digital signal.
  • the analog signal includes analog broadcast
  • the digital signal includes digital broadcast.
  • analog broadcasting is received and demodulated by a receiver built in a television and input to a DVD recorder as an analog video signal such as NTSC.
  • Digital broadcasting is performed by a receiver STB (Set Top Box). Demodulated to digital signal and input to DVD recorder for recording.
  • a DVD on which video information is recorded is reproduced by a DVD recorder and output to the outside.
  • the input there are both analog and digital signals, and if they are analog signals, they are directly input to the television. If they are digital signals, they are converted to analog signals via the STB and then converted to analog signals. The video is input and displayed on the television.
  • D Video information can also be recorded on VD.
  • the DVD recorder can play the video information.
  • the above-described analog broadcast and digital broadcast video information is usually accompanied by audio information.
  • the accompanying audio information is also recorded and reproduced by a DVD recorder.
  • the video information may be a power still image that is generally a video. For example, when a still image is recorded with the photo function of a DVD camcorder.
  • the digital IZF between the DVD recorder and an external device such as an STB can be IEEE1394, ATAPI, SCSI, USB, Ethernet (registered trademark), or the like.
  • NTSC which is a composite video signal
  • a component signal that individually transmits a luminance signal and a color difference signal may be used.
  • video transmission I / F between AV equipment and television is being researched and developed to replace analog I / F with digital I / F, for example, DVI, and DVD recorders and televisions are digital IZF. Of course, it is also expected to be connected.
  • FIG. 2 is a block diagram showing functions of the DVD recorder.
  • the drive device includes an optical pickup 101 that reads data from the DVD-RA M100, an ECC (Error Correcting Code) processing unit 102, a track buffer 103, a switch 104 that switches input / output of the track buffer 103, an encoder unit 105, and a decoder unit 106.
  • ECC Error Correcting Code
  • the DVD recorder may include a semiconductor memory card or a node disk drive as a data storage medium in addition to the DVD-RAM.
  • Figure 3 shows the functional block configuration of a DVD recorder with a semiconductor memory card and hard disk drive.
  • One sector may be 512 B or 8 KB.
  • the ECC block may be 1 sector, 16 sectors, 32 sectors, etc. As the information capacity that can be recorded increases, the sector size and the number of sectors that make up the ECC block are expected to increase.
  • the track buffer 103 records AV data on the DVD-RAM 100 more efficiently. Therefore, it is a buffer for recording AV data at a variable bit rate (VBR). Since the read / write rate (Va) to DVD—R AM100 is a fixed rate, AV data has a bit rate (Vb) that changes according to the complexity of its contents (image if video). It is a buffer for absorbing this bit rate difference.
  • VBR variable bit rate
  • FIG. Figure 4 (a) shows the address space on the disk.
  • Fig. 4 (a) when AV data is recorded separately in a continuous area of [al, a2] and a continuous area of [a3, a4], the track is tracked while seeking from a2 to a3.
  • the decoder unit 106 By supplying the data stored in the buffer to the decoder unit 106, it is possible to continuously play back AV data.
  • the state at this time is shown in Fig. 4 (b).
  • AV data that has been read out at position al is input to the track buffer 103 from time tl, and data output from the track buffer 103 is started.
  • data is accumulated in the track buffer by the rate difference (V a – Vb) between the input rate (Va) to the track buffer and the output rate (Vb) from the track buffer.
  • This state continues until the search area reaches a2, that is, until time t2. If the amount of data stored in the track buffer 103 during this period is B (t2), B (t2) stored in the track buffer 103 from time t2 to time t3 when reading of data in the area a3 is started. ) And can continue to be supplied to the decoder 106.
  • N-sec is the number of sectors that make up the ECC block
  • S-size is the sector size
  • Tj is the seek performance (maximum seek time).
  • N_ecc Vb * TjZ
  • a defective sector may occur in the continuous area.
  • the continuous region is given by the following equation.
  • dN-ecc is the size of the defective sector to accept
  • Ts is the time required to skip the defective sector in the continuous region. This The size is also expressed in ECC blocks.
  • N— ecc dN— ecc + Vb * (Tj + Ts) Z
  • DVD-RAM can perform continuous playback Z recording even if AV data is distributed and recorded on a disc if a certain amount or more of data is continuously recorded. In DVD, this continuous area is called CDA.
  • Fig. 5 shows the appearance and physical structure of DVD-RAM, a recordable optical disc.
  • DVD—RAM is usually loaded into a DVD recorder in a cartridge. The purpose is to protect the recording surface. However, the recording surface may be protected in another configuration, or if it is acceptable, it can be loaded directly into the DVD recorder without being stored in the cartridge.
  • DVD-RAM records data by a phase change method.
  • the recorded data on the disc is managed in units of sectors and accompanied with an access address.
  • the 16 sectors are units for error correction, are given error correction codes, and are called ECC blocks.
  • FIG. 5 (a) shows a recording area of a DVD-RAM that is a recordable optical disc.
  • DVD-RAM has a lead-in area on the innermost circumference, a lead-out area on the outermost circumference, and a data area between them.
  • a reference signal necessary for stabilizing the servo when the optical pickup is accessed, an identification signal with other media, and the like are recorded.
  • the lead-out area the same reference signal as the lead-in area is recorded.
  • the data area is divided into sectors (2048 bytes), which is the smallest access unit.
  • the data area is divided into a plurality of zone areas in order to realize rotation control called Z-CLV (Zone Constant Linear Velocity) during recording and playback.
  • Z-CLV Zero Constant Linear Velocity
  • FIG. 5 (a) is a diagram showing a plurality of zone regions provided concentrically on the DVD-RAM.
  • DVD-RAM is divided into 24 zone areas, zone 0 to zone 23. .
  • the rotation speed of DVD-RAM is set for each zone area so that the inner zone is faster, and is kept constant while the optical pickup accesses within one zone. This increases the recording density of DVD-RAM and facilitates rotation control during recording and playback.
  • FIG. 5B is an explanatory diagram in which the lead-in area, the lead-out area, and the zone areas 0 to 23 that are shown concentrically in FIG. 5A are arranged in the horizontal direction.
  • the lead-in area and lead-out area have a defect management area (DMA) inside.
  • the defect management area is an area in which position information indicating the position of a sector in which a defect has occurred and replacement position information indicating in which of the replacement areas a sector that replaces the defective sector exists.
  • Each zone area has a user area inside thereof, and also has an alternative area and an unused area at the boundary.
  • the user area is an area that the file system can use as a recording area.
  • the replacement area is an area used as a replacement when a defective sector exists.
  • the unused area is an area that is not used for data recording. Unused areas will be provided for about two tracks. The unused area is provided because the sector address is recorded at the same position on the adjacent track in the zone. In Z-CLV, the sector address recording position is different on the track adjacent to the zone boundary. This is to prevent erroneous sector address discrimination.
  • DVD-RAM assigns logical sector numbers (LSNs) to physical sectors in the user area in order of internal frequency so that only the sectors used for data recording are shown continuously.
  • LSNs logical sector numbers
  • FIG. 6 shows a logical data space of DVD-RAM configured by logical sectors.
  • the logical data space is called a volume space and records user data.
  • the volume area manages the recorded data with a file system.
  • information for managing a group of sectors for storing data as a file and further managing a group of files as a directory is recorded in the partition space in the volume space to manage the partition space and the like.
  • Volume structure information is recorded at the beginning and end of the volume area. It is.
  • the file system of this embodiment is called UDF and conforms to IS013346 standard.
  • the group of sectors is not necessarily arranged continuously in the volume space, but is partially dispersed. For this reason, the file system manages a group of sectors arranged continuously in the volume space as an extent, and manages a file as a set of related extents.
  • FIG. 7 shows the directory and file structure of the moving image data recorded on the DVD—RAM. Below the root is a VIDEO-RT directory. Under this, files of various objects that are data for reproduction, and VIDEO Manager files are stored as management information indicating their reproduction order and various attributes.
  • the object is data conforming to the MPEG standard, and includes PS-VOB, TS1-VOB, TS2-VOB, AOB, POB, and MNF.
  • PS-VOB, AOB, and POB are MPEG program streams (PS), and TSl_VOB and TS2-VOB are transport streams (TS).
  • PS MPEG program streams
  • TSl_VOB and TS2-VOB transport streams
  • the program stream has a data structure that allows for storing AV information in a package medium, while the transport stream has a data structure that allows for communication media.
  • PS-VOB, TS1-VOB, and TS2-VOB are all objects having both video information and audio information, and mainly video information.
  • TS1-VOB is an object that is encoded by a DVD recorder and the internal picture structure is managed in detail
  • TS2-VOB is an object encoded outside the DVD recorder.
  • TS1-VOB is an object in which an analog video signal input from an external force is encoded into a transport stream by a DVD recorder
  • TS2-VOB is a digital video signal input from the outside.
  • AOB and POB are MPEG program streams
  • AOB is an object mainly composed of audio information
  • POB is an object mainly composed of a still image.
  • MNF is manufacturing It is a file unique to the user and stores additional information to support the operation of the recording / playback device.
  • VOB is used for applications such as movies
  • AOB is used for music applications.
  • FIG. 8 shows a directory and file structure of still image data recorded in the DVD-RAM.
  • a directory and file structure according to the DCF standard will be described as an example.
  • DCF image root directory directory name: DCIM
  • DCIM DCF image root directory
  • a DCF object which is data for reproduction is stored under the DCF directory.
  • a DCF object is a group of files recorded in accordance with the rules established by the DCF.
  • JPG an image file that conforms to the Exif standard and has a data structure defined by the DCF standard.
  • the DCF extended image file is an image file recorded directly under the DCF directory, having a DCF file name but having an extension and a data structure different from those of the DCF basic file.
  • the DCF thumbnail file is a compressed file for recording a thumbnail of the DCF extended image file.
  • Figure 9 shows the structure of MPEG data recorded as various AV objects on a DVD FIG.
  • the video stream and audio stream are divided and multiplexed.
  • the multiplexed stream is called a system stream.
  • a system stream in which DVD-specific information is set is called VO B (Video Object).
  • the unit of division is called a pack'packet and has a data amount of about 2K bytes.
  • the video stream is encoded according to the MPEG standard, is compressed at a variable bit rate, and the bit rate is high for complex video such as intense motion.
  • each picture in a video is encoded by being classified into an I picture, a P picture, and a B picture.
  • the I picture has a spatial compression code that is completed within the frame
  • the P picture and B picture have a temporal compression code that uses the correlation between frames.
  • a section including at least an I picture is managed as a GOP (Group of Pictures). GOP is an access point for special playback such as fast-forward playback. This is because it has an I picture compressed in a frame.
  • the audio stream is encoded with MPEG audio AAC and MP3, and AC3 or LPC M code is used.
  • a multiplexed data unit including video information constituting a GOP and accompanying audio information is called a VOBU (Video Object Unit).
  • VOBU includes information for managing the moving image section as header information.
  • the system stream described in Fig. 9 includes a program stream (PS) and a transport stream (TS).
  • PS program stream
  • TS transport stream
  • the former has a data structure that takes into account package media
  • the latter has a data structure that takes into account communication media.
  • FIG. 10 is a diagram for explaining the outline of the data structure of the program stream and the transport stream.
  • the transport stream transmission and multiplexing unit is composed of fixed-length TS packets.
  • the TS packet size is 188B, which is consistent with ATM transmission, which is a communication standard.
  • One or more TS packets gather to form a PES packet.
  • the PES packet is a concept common to the program stream and the transport stream, and the data structure is common. Packets stored in a program stream pack directly constitute a PES packet, and one or more transport stream TS packets form a PES packet.
  • the PES packet is a minimum unit of the code key, and stores video information and audio information that are commonly encoded. That is, video information and audio information of different encoding methods are not mixedly stored in one PES packet. However, picture boundaries and audio frame boundaries need not be guaranteed for the same encoding method. As shown in FIG. 10, there may be a case where one I picture is stored in a plurality of PES packets, or a plurality of picture data is stored in one PES packet.
  • FIG. 11 and FIG. 12 show individual data structures of the transport stream and the program stream.
  • a TS packet is composed of a TS packet header, an applicable field, and a payload part.
  • a TS packet header stores a PID (Packet Identifier), which identifies various streams such as a video stream or an audio stream to which the TS packet belongs.
  • PID Packet Identifier
  • PCR Program Clock Reference
  • STC standard clock
  • the PES header stores DTS (Decoding Time Stamp) and PTS (Presentation Time Stamp).
  • DTS indicates the decoding timing of the picture Z audio frame stored in the PES packet
  • PTS indicates the presentation timing such as video / audio output. It is not necessary to have PTS and DTS in all PES packet headers.
  • the details of the structure of the TS packet are shown in FIG. As shown in Fig. 13, in addition to PCR, a random access display flag is stored in the application field, and by this flag, data corresponding to an access point at the beginning of the video or audio frame is stored in the corresponding payload part. Indicates whether to store.
  • the unit start display flag indicating the start of the PES packet and the application field control information indicating whether the application field is followed or not are stored in addition to the PID described above.
  • FIG. 12 shows the structure of the packs that make up the program stream.
  • the pack has SCR and StreamID in the pack header.
  • SCR is the transport stream PCR and Streaml D is the same as PID. Since the data structure of the PES packet is the same as that of the transport stream, PTS and DTS are stored in the PES header.
  • One of the major differences between a program stream and a transport stream is that multiple programs are allowed in the transport stream. In other words, it is assumed that only one program can be transmitted in the unit of program, but the transport stream transmits multiple programs simultaneously. For this reason, in the transport stream, it is necessary for the playback device to identify either the video stream or the audio stream that constitutes the program for each program.
  • FIG. 14 shows a PAT table and a PMAP table for transmitting the configuration information of the audio stream and video stream constituting the program.
  • the PMAP table stores information on the combination of video stream and audio stream used for each program
  • the PAT table stores information on the combination of program and PMAP table.
  • the playback device can detect a video stream and an audio stream constituting a program whose output is requested by the PAT table and the PMAP table.
  • FIG. 15 (a) 16 sectors constitute an ECC block.
  • Packs (PS Pack) that make up video object data (PS—VOB) in the form of a program stream are arranged in a sector boundary as shown in Fig. 15 (b).
  • the knock size and sector size are both 2KB.
  • a video object that takes the form of a transport stream.
  • -VOB is a unit (Capsule) that has a size of 8KB and is placed in the ECC block.
  • the capsule has an 18B header area, and 43 TS packets with ATS information added are placed in the data area.
  • ATS information Arriv Time Stamp Information
  • the power of storing 43 MPEG transport packets in an 8 KB Capsule is not limited to this.
  • One ATS (fixed byte length) and one MPEG transport packet are not limited to this. You can also record them in a paired format, such as forming Ding 31— ⁇ 0 7 Ding 32— ⁇ 08.
  • FIG. 16 and 17 show the data structure of the file.
  • This file is related to the information called Video Manager shown in FIG.
  • the video management information includes object information indicating management information such as recording positions of various objects on the disc, and playback control information indicating the playback order of objects.
  • Figure 16 shows the objects recorded on the disk as PS—VOB # 1 to PS—VOB #n, TS1 -VOB # 1 to TS1—VOB #n, TS2-VOB # 1 to TS2—VOB #n. Indicates a case.
  • PS-VOB an information table for PS-VOB
  • TS1-VOB an information table for TS1-VOB
  • TS2-VOB # 1 to TS2—VOB #n Contains VOB information for each object.
  • Each VOB information includes general information of the corresponding object, attribute information of the object, an access map for converting the playback time of the object into an address on the disk, and management information of the access map. is doing.
  • the general information includes the identification information of the corresponding object, the recording time of the object, the manufacturer ID, etc.
  • the attribute information includes the video stream information (V_ATR) including the video stream coding mode, and the audio information. It consists of the number of streams (AST_Ns) and audio stream information (A—ATR) including the audio stream coding mode.
  • the playback path information is an object. This is to avoid referring to the recording position of the tape on the disk directly by the sector address or the like and to indirectly refer to it by the playback time of the object.
  • the object recording position may be changed by editing, etc., but if the playback path information directly refers to the object recording position by sector address, etc., playback should be updated. This is because the route information increases.
  • the playback path information when referring indirectly by the playback time, it is not necessary to update the playback path information, and only the access map needs to be updated.
  • an AV stream generally has two criteria of a time axis and a data (bit string) axis, and there is no perfect correlation between the two criteria.
  • MPEG-2 video which is an international video stream standard
  • the object information has an access map for converting between the time axis and the data (bit string) axis.
  • the playback control information includes a user-defined playback path information table, an original playback path information table, and a title search pointer.
  • the original defined playback path information automatically generated so that the DVD recorder shows all the objects recorded during object recording, and the playback sequence can be freely selected by the user.
  • the playback path is collectively called PGC information (Program Chain Information) in DVD
  • user-defined playback path information is called U-PGC information
  • original playback path information is called O-PGC information.
  • Each of the O-PGC information and the U-PGC information is information that lists cell information, which is information indicating cells that are playback sections of an object, in a table format.
  • the playback section of the object indicated by the O PGC information is called an original cell (O-CELL), and the playback section of the object indicated by the U-PG C information is called a user cell (UCELL).
  • the cell indicates the object playback section by the playback start time and playback end time of the object, and the playback start time and playback end time are converted into the recording position information of the object on the actual disk by the access map described above.
  • FIG. 18 is a diagram for specifically explaining the relationship among objects, cells, PGCs, and access maps.
  • the original PGC information 50 includes at least one cell information 60, 61, 62, 63.
  • the cell information 60 specifies the object to be played, the object type, and the playback section of the object.
  • the recording order of the cell information in the PGC information 50 indicates the playback order when the object specified by each cell is played back.
  • One cell information 60 includes type information (Type) 60a indicating the type of object specified by the cell information 60, an object ID (Object ID) 60b that is object identification information, and a time axis. Includes start time information (Start—PTM) 60c in the object, end time information (End—PTM) 60d in the object on the time axis, and Entry Point information (EPI) 60e.
  • the EPI is defined by time information and plays a role like a bookmark, for example.
  • the number of entry points in the cell is recorded in the cell information.
  • the EPI consists of the entry point's PTM (presentation time) and type information of the entry point.
  • PTM specifies the display timing when using the 27 MHz system clock counter value specified by the MPEG-2 system stream as a reference.
  • the cell information 60 in the PCG information 50 is sequentially read, and the object specified by each cell is reproduced for the reproduction section specified by the cell.
  • the access map 80c converts the start time information and the end time information indicated by the cell information into position information on the disk of the object.
  • the map information described above is generated and recorded together with the recording of the force object.
  • PS—VOB and TS—VOB1 are mainly used to encode received analog broadcasts into MPEG streams by DVD recorders. It is generated by doing. For this reason, I-picture and various time stamp information is generated by itself, the data structure inside the stream is clear for the DVD recorder, and there is no problem in generating map information.
  • the received digital broadcast is recorded directly on the disc without being encoded by the DVD recorder.
  • the position of I picture and time stamp information are not generated by itself like PS VOB! Therefore, the data structure inside the stream is not clear for the DVD recorder, and the digital stream power to be recorded must also detect this information. Therefore, the DVD recorder detects the I picture and time stamp as follows for the map information of TS2-VOB that records the stream encoded outside the recorder.
  • detection of an I picture is performed by detecting random access display information in the application field of the TS packet shown in FIG.
  • the time stamp is detected by detecting the PTS header PTS.
  • PCR in the applicable field or ATS which is the arrival timing when the TS packet is transmitted to the DVD recorder, may be used instead.
  • the DVD recorder detects the position of the I picture based on the information of the system layer, which is the upper layer, without analyzing the data structure of the video layer of the MPEG stream. This is because the load on the system is high because the analysis of the video layer is performed to generate map information.
  • map information cannot be generated, so it is necessary to indicate that there is no valid map information.
  • the map management information shown in Fig. 16 (b).
  • the map management information has map validity information and a self-encoding flag.
  • the self-encoding flag indicates that the object is encoded by the DVD recorder itself, the internal picture structure is clear, and the time stamp information of the map information and the position information of the I picture are accurate. .
  • the map validity information indicates whether there is a valid access map.
  • Examples of cases where the system layer cannot be detected include the case where the applicable field is not set, the MPEG transport stream in the first place! /, And the digital stream.
  • the DVD recorder can also play back the head force of objects for which no map information is generated.
  • the recorded digital stream can be played back by outputting to the STB corresponding to the stream via the digital IZF.
  • the DVD recorder temporarily stores the optical pickup 201 that reads data from the DVD-RAM 100, the ECC processing unit 202 that performs error correction of the read data, and the read data after error correction.
  • PS decoder 205 that plays back program streams such as video objects (PS—VOB), TS decoder 206 that plays back transport streams of digital broadcast objects (TS1—VOB), and audio 'objects Audio decoder 207 for playing back (AOB), still picture decoder 208 for decoding still picture object (POB), switch 210 for switching data input to each decoder 205, 206, and control for controlling each part of the player Part 21 1.
  • PS video objects
  • TS decoder 206 that plays back transport streams of digital broadcast objects
  • TS1—VOB digital broadcast objects
  • Audio decoder 207 for playing back
  • still picture decoder 208 for decoding still picture object (POB)
  • switch 210 for switching data input to each decoder 205, 206, and control for controlling each part of the player Part 21 1.
  • Data recorded on the DVD-RAM 100 is read from the optical pickup 201 and stored in the track buffer 203 through the ECC processing unit 202.
  • the data stored in the track buffer 203 is input to any of the PS decoder 205, the TS decoder 206, the audio decoder 207, and the still picture decoder 208, and is decoded and output.
  • control unit 211 determines the data to be read based on the reproduction sequence indicated by the reproduction path information (PGC) shown in FIG. That is, in the example of FIG. 17, the control unit 211 first reproduces the VOB # 1 partial section (CELL # 1), and then reproduces the VOB # 3 partial section (CELL # 2). Finally, control playback with VOB # 2 (CELL # 3).
  • PPC reproduction path information
  • control unit 211 performs playback based on the cell information of the playback path information (PGC) shown in FIG. Cell type, corresponding object, playback start time and playback end time of the object.
  • PPC playback path information
  • the control unit 211 inputs the data of the object interval specified by the cell information to a suitable decoder.
  • control unit 211 identifies the object to be reproduced by the Object ID of the cell information. Further, the control unit 211 identifies the cell that is the playback section of the identified object by converting the StartPTM and EndPTM of the cell information into the address of the disk information using the corresponding VOB information access map.
  • the player of the present embodiment further has a digital interface 204 for supplying the AV stream to the outside.
  • a digital interface 204 for supplying the AV stream to the outside. This makes it possible to supply the AV stream to the outside via communication means such as IEEE1394 or IE C958. This is especially true for TS2-VOBs that are not encoded by themselves, because there may be no corresponding decoder inside the player, so output directly to the external STB through the digital interface 204 without decoding. Can be played back on that STB.
  • the control unit 211 determines whether or not random access reproduction is possible based on the map management information in Fig. 16 (b). If the access point information flag is valid, the access map has I picture position information. Therefore, if there is a request for fast-forward playback or the like from an external device, the control unit 211 can output digital data including an I picture to the external device via the digital IZF. If the time access information flag is valid, time access is possible. For this reason, the control unit 211 can output digital data including picture data corresponding to the designated playback time to an external device via the digital IZF in response to a time access request with external equipment. .
  • the system control unit 212 is described in place of the control unit 211 described above, but there is no need to consider it separately. It may be handled as the same component having a general control function.
  • the DVD recorder receives a display to the user and a request from the user.
  • User IZF unit 222 system control unit 212 that manages and controls the entire DVD recorder, analog broadcast tuner 213 that receives VHF and UHF, encoder 214 that converts analog signals into digital signals and encodes them into MPEG program streams,
  • a digital broadcast tuner 215 that receives a digital satellite broadcast, an analysis unit 216 that analyzes an MPEG transport stream sent by the digital satellite, a display unit 217 such as a television and a speaker, and a decoder 218 that decodes an AV stream.
  • a camera unit 223 for inputting video and a still image encoder 224 for encoding an AV signal sent from the camera unit 223 into a JPEG stream are provided.
  • the AV signal of the still image may be encoded into the MPEG program stream by the encoder 214 and recorded separately in the DVD-RAM.
  • the decoder 218 includes the first and second decoders shown in FIG.
  • the DVD recorder further includes a digital IZF unit 219, a track buffer 220 for temporarily storing write data, and a drive 221 for writing data to the DVD-RAM 100.
  • the digital IZF unit 219 is an interface for outputting data to an external device by communication means such as IEEE1394 or USB.
  • the user IZF unit 222 first receives a request from the user.
  • the user IZF unit 222 transmits a request from the user to the system control unit 212, and the system control unit 212 interprets the request from the user and makes a processing request to each module.
  • the system control unit 212 requests reception to the analog broadcast tuner 213 and encoding to the encoder 214.
  • the encoder 214 encodes the AV data sent from the analog broadcast tuner 213, and Dio-encode and system-encode and send to track buffer 220.
  • the encoder 214 sends the time stamp information of the head data of the MPEG program stream being encoded to the system control unit 212 as the playback start time (PS—VOB—V—S—PTM). Subsequently, information necessary for creating an access map is sent to the system control unit 212 in parallel with the encoding process. This value is set in the Start-PTM of the cell information shown in Fig. 18 to be generated later.
  • the time stamp information is generally PTS, but SCR can be used instead.
  • the system control unit 212 issues a recording request to the drive 221, and the drive 221 extracts the data stored in the track buffer 220 and records it in the DVD-RAM 100.
  • the above-mentioned continuous area (CDA) is searched for the recordable area force on the disc, and data is recorded in the searched continuous area.
  • the end of recording is instructed by a stop request from the user.
  • the recording stop request from the user is transmitted to the system control unit 212 through the user IZF unit 222, and the system control unit 212 issues a stop request to the analog broadcast tuner 213 and the encoder 214.
  • Encoder 214 stops the encoding process upon receiving an encoding stop request from system control unit 212, and reproduces the time stamp information contained in the end data of the MPEG program stream that has been encoded last (PS—VOB—V—). E—PTM) to the system control unit 212. This value is set in End-PTM of cell information shown in FIG.
  • the time stamp information may be replaced by a power SCR that is normally set to PTS.
  • the system control unit 212 After completion of the encoding process, the system control unit 212 generates PS-VOB VOB information (PS-VOBI) and playback control information shown in FIG. 16 based on the information received from the encoder 214.
  • the generated VOB information includes an access map suitable for the object type and map management information.
  • the system control unit 212 sets the map validity information of the map management information to be valid, and turns on the self-encoding flag.
  • an original playback path (O-PGC information) shown in Fig. 17 is generated, in which an object to be recorded is one of playback targets.
  • the generated O—PGC information is added to the original playback path table.
  • the original playback path (O—PGC information) has cell information.
  • PS—VOB is set in the type information of the cell information.
  • the system control unit 212 accumulates the data stored in the track buffer 220 for the drive 221 and records the PS VOB VOB information (PS—VOBI) and playback control information.
  • the drive 221 records the remaining data in the track buffer 220 and these pieces of information in the DVD-RAM 100, and ends the recording process.
  • Analog broadcasting may be encoded into TS1-VOB.
  • the encoder 214 needs to be an encoder that converts an analog signal into a digital signal and encodes it into an MPEG transport stream, and the type information in the cell information is set to “TS1-VOB”.
  • the Start—PTM and End—PTM may be PTS or PCR.
  • the recording by outside-encoding will be described in detail below through the operation of recording digital broadcasting.
  • the type of object to be recorded is TS 2—VOB.
  • a digital broadcast recording request by the user is transmitted to the system control unit 212 through the user IZF unit 222.
  • the system control unit 212 requests reception to the digital broadcast tuner 215 and data analysis to the analysis unit 216.
  • the MPEG transport stream sent from the digital broadcast tuner 215 is transferred to the track buffer 220 through the analysis unit 216.
  • the analysis unit 216 uses the first data of the transport stream as information necessary for generating the VOB information (TS2-VOBI) of the encoded MPEG transport stream (TS2-VOB) received first as a digital broadcast. Is extracted as start time information (TS2-VOB-V-S-PTM) and sent to the system control unit 212.
  • the start time information is set in Start-PTM of the cell information shown in FIG. 18 to be generated later.
  • This time stamp information is PCR or PTS.
  • ATS which is the timing when the object is transmitted to the DVD recorder, may be substituted.
  • the analysis unit 216 further analyzes the system layer of the MPEG transport stream and detects information necessary for creating an access map. As described above, the position of the I picture in the object is detected based on the random access indicator in the adaptation field in the TS packet header.
  • the system control unit 212 outputs a recording request to the drive 221, and the drive 221 extracts the data stored in the track buffer 220 and records it in the DVD-RAM 100.
  • the system control unit 212 instructs the drive 221 where to record on the disk from the allocation information of the file system.
  • the above-mentioned continuous area (CDA) is searched from the recordable area on the disc, and data is recorded in the searched continuous area.
  • the end of recording is instructed by a stop request from the user.
  • the recording stop request from the user is transmitted to the system control unit 212 through the user IZF unit 222, and the system control unit 212 issues a stop request to the digital broadcast tuner 215 and the analysis unit 216.
  • the analysis unit 216 stops the analysis process upon receiving an analysis stop request from the system control unit 212, and displays the time stamp information included in the data of the end section of the MPEG transport stream that was analyzed last (TS 2_VOB_V_E_PTM ) To the system control unit 212. This value is set in End_PTM of the cell information shown in FIG. This time stamp information is PCR or PTS. You can also use ATS, which is the timing when objects are transmitted to the DVD recorder.
  • the system control unit 212 After receiving the digital broadcast, the system control unit 212 generates the TS2-VOB VOB information (TS2-VOBI) and playback control information shown in FIG. 16 based on the information received from the analysis unit 216. .
  • the generated VOB information includes an access map suitable for the object type and map management information.
  • the system control unit 212 detects the position of the I picture in the object and generates an effective access map, the system control unit 212 sets the map validity information of the map management information to be valid.
  • the self-encoding flag is set to OFF. If a valid access map cannot be generated, the map validity information is set to invalid. Possible cases where a valid access map cannot be generated include when a digital broadcast that is not supported is received or when there is no random access information in the applicable field. In addition, when input directly from the digital I / F, there may be cases where it is not an MPEG transport stream. In this case, the map validity information is naturally set to invalid.
  • the playback control information is shown in Fig. 17 in which the object to be recorded is one of the playback targets.
  • the original playback path (O—PGC information) is generated.
  • the generated O—PGC information is added to the original playback path table.
  • the original playback path (O—PGC information) has cell information. “TS2-VOB” is set in the type information of the cell information.
  • the system control unit 212 finishes recording the data stored in the track buffer 220 for the drive 221, and records the VOB information (TS2-VOBI) for TS2-VOB and the playback control information.
  • the drive 221 records the remaining data in the track buffer 220 and these pieces of information in the DVD-RAM 100, and ends the recording process.
  • the system control unit 212 requests AV data output to the camera unit 223 and encoding to the still image encoder unit 224.
  • the still image encoder unit 224 JPEG encodes the AV data sent from the camera unit 223 and sends it to the track buffer 220.
  • the system control unit 212 issues a recording request to the drive 221, and the drive 221 extracts the data stored in the track buffer 220 and records it in the DVD-RAM 100.
  • the system control unit 212 creates a DCF image root directory and a DCF directory as needed from the file system information so that the file name does not overlap with the DCF object already recorded. Name it and record the still image file on DVD—RA Ml 00.
  • the recording stop request from the user is transmitted to the system control unit 212 through the user IZF unit 222, and the system control unit 212 issues a stop request to the camera unit 223 and the still image encoder unit 224.
  • the system control unit 212 outputs a recording request to the drive 221, and the drive 221 takes out the data stored in the track buffer 220 and records it in the DVD-RAM 100.
  • the system control unit 212 creates a DCF image root directory and a DCF directory as needed from the file system information so that the DCF object and the file name that have already been recorded do not overlap. Name it and record the still image file on DVD—RA Ml 00.
  • the recording stop request from the user is transmitted to the system control unit 212 through the user IZF unit 222, and the system control unit 212 issues a stop request to the digital IZF unit 219.
  • FIG. 21 shows a DVD-RAM 301 in which a plurality of still image files (DSC objects) 302, 303, and 304 are stored.
  • the left side is the inner side of the DVD-RAM 301 and the right side is the outer side of the DVD-RAM 301.
  • the still image files 302, 303, and 304 are each composed of a set of attached information and compressed data.
  • the compressed data is, for example, captured JPEG image data.
  • the attached information includes thumbnail image data used when displaying the JPEG image data as thumbnails, date information for searching the still image files 302, 303, and 304, and metadata such as aperture and shutter speed. It is.
  • FIG. 22 is a data structure diagram when the program management information has an extended information area.
  • O-PGC information # 1 in Fig. 17 corresponds to "Management information for Program 1" in Fig. 22, and General information in Fig. 17 corresponds to "General information for Program 1" under "Management information for Program 1" in Fig. 22
  • O-CELL information # 1 to O-CELL information #n in FIG. 17 correspond to the AV data designation information of program 1 in FIG.
  • the extended information of program 1 in FIG. 22 is a field added in this figure. In this case, management information of a certain program (program 1) is recorded in the form of general information of program 1, AV data designation information of program 1, and extended information of program 1.
  • Extended information in this case includes detailed program information obtained from EPG (genre, performers, description of contents, etc.), recording settings for self-recording (settings such as recording bitrate), and still images that represent one scene of the program ( (Thumbnail) actual data, file name when the above thumbnail is an external file, setting as a prohibited program, There are settings as candidates for automatically deleted programs, recording of information indicating that the device is automatically recorded content, and information indicating the user who has recorded. If one program is deleted, the management information for the program is also deleted at the same time, so the extended information is also deleted.
  • Fig. 23 shows the case where the "program AV data specification information" shown in Fig. 22 is divided into “cell management information” and "entry point management information", and each is recorded as a unit. Indicates.
  • the Entry Point management information has an extended information area inside.
  • O-PGC information # 1 in Figure 17 is the program management information
  • general information in Figure 17 is the general information under O-PGC information # 1
  • O-CELL information # 1 to O-CELL information in Figure 17 # n corresponds to the AV data specification information of the program.
  • “Program extended information” in FIG. 23 is a field added in this figure.
  • the management information of each cell in FIG. 23 corresponds to Type, ObjectID, Start-PTM, and Ent-PTM in the original cell information in FIG.
  • the management information of each EntryPoint corresponds to the information listing the EntryPoint information in the original cell information in FIG.
  • Entry Point type information indicating the presence or absence of extended information, position specifying information in the program, and extended information are recorded as Entry Point management information.
  • information indicating the change point of PSIZSI information indicating the start point of the data carousel
  • information indicating the in point to the CM information indicating the out point from the CM
  • special event information Specific pop-up to another playback position, start external application on PC, URL is embedded, start HTML, etc.
  • link to related external file DCF object, JPEG thumbnail, etc.
  • its external file Playback conditions playback time, etc.
  • the location of the Entry Point management information may be inside the program management information as shown in FIG. 23, or may be grouped in another location in the video management information, or other than the video management information. It may be inside the file. However, in this case, it is assumed that an arbitrary position in the AV stream can be designated as the position specifying information.
  • Entry Point type information may not be present.
  • the type of Entry Point may indicate other than the presence or absence of extended information.
  • FIG. 24 shows the “program AV data designation information” shown in FIG. 22 as “cell management information” and “Sect”. Ion Marker management information ”is divided into two, and the case where each is recorded together is shown. Here, the section marker management information has an extended information area inside.
  • the management information of each cell in FIG. 24 corresponds to Type, Object ID, Start-PTM, and Ent-PTM in the original cell information in FIG.
  • Section Marker is information that designates an arbitrary section of a program with two points of a start position and an end position, and is recorded in the program management information.
  • Section Marker management information includes Section Marker type information indicating the presence or absence of extended information, Section Marker start position specifying information in the program, Section Marker end position specifying information in the program, Extended information is recorded, and as extended information, information indicating the CM section, information indicating the data broadcasting effective section, information indicating the special effect area, links to related external files (DCF objects, JPEG thumbnails, etc.) ) And external file playback conditions (playback time, etc.) can be recorded.
  • Section Marker type information indicating the presence or absence of extended information
  • Section Marker start position specifying information in the program Section Marker end position specifying information in the program
  • Extended information is recorded, and as extended information, information indicating the CM section, information indicating the data broadcasting effective section, information indicating the special effect area, links to related external files (DCF objects, JPEG thumbnails, etc.) ) And external file playback conditions (playback time, etc.) can be recorded.
  • the position of the Section Marker management information may be within the program management information as shown in FIG. 23, or may be grouped at other positions within the video management information, or other than the video management information. It may be inside the file. However, in this case, any section in the AV stream can be specified as the position specifying information.
  • Section Marker type information may not be present.
  • the section marker type may indicate other than the presence or absence of extended information.
  • FIG. 25 shows the basic data structure of extended information.
  • Extended information consists of IT — DATA— Ns, which represents the number of extended information, and IT—DATA—SET, which represents a set of extended information.
  • IT—DATA—SET is the number of IT-DATA-Ns specified. It consists of IT—DATA—Header and IT—DATA—Body.
  • IT DATA—Header indicates Ex tension ID (including common Extension ID common to all device manufacturers) and IT_DATA—Body size for identifying the manufacturer, extension information type, etc. IT—DATA—Body—Size is recorded.
  • IT-DATA-Body is composed of IT-TY-SZ indicating the type and size of DATA and DATA, which is the main body of extended information, and information as shown in FIG. 25 is recorded.
  • program title, performer, producer, broadcast station, genre, recording date, recording source Other additional information, program content information, external file name, URL (the above is common for common extension ID and unique extension ID), equipment manufacturer's original extension information (if unique extension ID is used), etc. is there.
  • IT—TY the size of each DATA is specified by IT—SZ.
  • the broadcasting station, genre, recording date and time, recording source, etc. listed in the previous example may be fixed regardless of IT-SZ.
  • FIG. 26 is a data structure diagram when the link information to the external extension information is recorded in the extension information (FIG. 26 (a)).
  • the external extended information link information includes an external extended information file name that specifies the file name of the external extended information file, an extended information start address that indicates the offset address in the file, and an extended information end address. To be recorded.
  • FIG. 27 is another data structure diagram in the case where the link information to the external extension information is recorded in the extension information.
  • the external extended information link information includes the external extended information file name that specifies the file name of the external extended information file, the extended information start address that indicates the offset address in the file, and the extended information.
  • the extended information size indicating the size of the file is recorded.
  • the external extended information link information includes the external extended information file name that specifies the file name of the external extended information file, and the index number of the extended information from the file head column. Extended information index number is recorded.
  • the size of one extension information may be fixed, or a search pointer corresponding to each index number may be provided at the beginning of the external extension information file. It may be possible to record the size of the external extension information at the head of each external extension information in the inside so that the address of the external extension information corresponding to the index number can be calculated.
  • the external extension information can be specified in any of the forms shown in FIGS. 26 (b), 27 (a), and 27 (b), and any form may be adopted.
  • FIG. 28 is a configuration example of the external extension information file described in FIG. 26 and FIG.
  • This external extended information file stores APP1 (application data segment 1) included in the recorded DCF basic file.
  • APP1 is recorded as the leading force of the logical sector. If the end of APP1 does not match the logical sector end, padding data is inserted between them. To be recorded. Any value can be used as padding data.
  • This APP1 includes metadata such as shooting time and aperture value. Also, thumbnail images of 160 pixels XI 20 pixels are always included. APP1 is also called Exif attached information.
  • the external extended information file shown in Fig. 28 is shown in the first example related to the linkage operation between a moving image and a still image, and in the third example, the fourth example described later, or the sixth example related to the linkage operation between a movie and a still image.
  • Fig. 29 shows the data at the beginning of the DCF basic file.
  • the top of the DCF basic file starts with SOI (Start Of Image) and APPl.
  • SOI consists only of SOI marker (0xFFD8).
  • the contents of APP1 are recorded in the order of APP1 marker (OxFFEl), APPl data size (excluding APP1 marker data size), and APP1 contents.
  • the maximum value of the data length field of AP P1 is 65535.
  • FIG. 30 shows the detailed data structure of the DCF basic file 321.
  • the DCF basic file 321 is composed of SOI322, APPl (323), DCF basic main image (324) compressed with JPEG, and EOI (End Of Image) 325.
  • APP1 mainly includes auxiliary information 326 on the DCF basic main image and thumbnail data 327 of the DCF basic main image 3 24.
  • Ancillary information about DCF basic main image 326 consists of OthIFD, ExifIFD, Int. IFD (interoperability IFD) ⁇ IstlFD.
  • Thumbnail data 327 includes SOI, JPEG-compressed thumbnail images, and EOI.
  • OthlFD includes image resolution.
  • ExiflFD includes aperture value, shutter speed value, manufacturer notes, comments, and so on. The manufacturer note is a field that can be set independently by the manufacturer.
  • the DCF main image 324 is an example of general image information.
  • Each IFD consists of a common data structure called a tag.
  • DCF basic file 321 is a subset of the Exif image file.
  • FIG. 31 shows the detailed data structure of the TIFF file 331 compliant with the Exif standard.
  • the TIFF file 331 includes a TIFF header 332, Exif standard-compliant auxiliary information 333, thumbnail images (uncompressed) 334, and image data (uncompressed) 335.
  • Exif-compliant annex information 333 consists of OthIFD, ExifIFD, Int. IFD, and IstlFD, as in FIG.
  • the DCF standard treats TIFF file 331 as a DCF extended image file. Furthermore, when recording a DCF extended image file, it is recommended to record the DCF thumbnail file 336.
  • the DCF thumbnail file 336 is composed of SOI337, APP1 (however, recording option) 338, JPEG-compressed thumbnail image 339, and EOI340.
  • APP1 (338) mainly includes OthIFD, ExifIFD, Int. IFD, and IstlFD, which are auxiliary information conforming to the Exif standard.
  • FIG. 32 shows a physical data arrangement on the DVD-RAM 315.
  • the external extended information file is recorded in the inner peripheral area 309, and the DCF basic file 321 or the DCF extended image file 331 is recorded in the outer peripheral area 310.
  • the area 309 on the inner circumference side is reserved as a recording area for the recorder to record the external extended information file.
  • the outer peripheral area 310 is a user area for recording data used by the user, such as the DCF basic file 321, the DCF extended image file 331, and other moving image data.
  • the inner peripheral area 309 is a management area for recording management information for managing data recorded in the outer peripheral area 310.
  • FIG. 33 shows a DVD-RAM 315 in which the DCF basic file 321 is recorded.
  • the left side is the inner circumference side of the DVD-RAM 315 and the right side is the outer circumference side of the DVD-RAM 315 when facing the page.
  • the attached information portion is recorded in the area 309 on the inner periphery side
  • the DCF basic file 321 composed of the attached information and compressed data is the area 310 on the outer periphery side of the DVD-RAM 315. Is recorded. That is, the DCF basic file 321 is recorded in the outer peripheral area 310 of the DVD-RAM 315 and a copy of the attached information is recorded in the inner peripheral area 309 of the DVD-RAM 315.
  • the compressed data in Fig. 33 (a) is the DCF basic main image 324 and EOI (325) in Fig. 30. is there.
  • the attached information is APP1 (323) and SOI (322) in Figure 30.
  • the auxiliary information constituting the DCF basic file 321 is collectively recorded in the area 309 on the inner periphery side of the DVD-RAM 315, and in the area 310 on the outer periphery side of the DVD-RAM 315, Attached information and compressed data constituting the DCF basic file 321 are recorded.
  • the DCF basic file 321 composed of attached information (311b) and compressed data 311c
  • the attached information (31 lb) and compressed data 311c are recorded in the area 310 on the outer periphery side of the DVD-RAM315.
  • the attached information (31 la) which is a copy of the attached information (31 lb), is recorded in the area 309 on the inner periphery side of the DVD-RAM 315.
  • the attached information (31 la), attached information (312a), and attached information (313a) stored in the inner area 309 of the DVD-RAM315 are displayed.
  • the attached information (31 la), attached information (312a), and attached information (313a) stored in the inner area 309 of the DVD-RAM315 are displayed.
  • a large number of DCF basic files 321 are recorded in the DVD-RAM 315! Even if they are displayed, thumbnails can be displayed at high speed.
  • searching the DCF basic file 321 using date information stored in the attached information part as in the case of thumbnail display as shown by the arrow in Fig. 33 (a)
  • Each attached information can be accessed with few seek operations, so it can be searched at high speed.
  • Figure 33 (b) shows the operation when displaying a still image of DCF basic file 321.
  • the attached information 3111
  • FIG. 34 (a) shows a DVD RAM 305 in which still image files (DSC objects) are recorded in different formats.
  • DSC objects still image files
  • the attached information portion and the compressed data portion are recorded in different recording areas of the DVD-RAM 305.
  • the attached information constituting the still image file is collectively recorded in the inner area 309 of the DVD-RAM 305, and the still picture file is recorded in the outer area 310 of the DVD-RAM 305. Is recorded.
  • the attached information (306a) and the compressed data 306b of the still image file composed of the attached information (306a) and the compressed data 306b are respectively stored in the inner area 309 and the outer area 310 of the DVD-RAM 305. It is recorded separately.
  • the auxiliary information (306a), the auxiliary information (307b), and the auxiliary information (308a) stored in the area 309 on the inner periphery side of the DVD-RAM 305 are used. It is only necessary to read out the inner peripheral side force of the disk in order by directing the outer peripheral side. Therefore, a long-time seek operation like the DVD-RAM 301 in FIG. 21 does not occur. As described above, according to the method of Patent Document 1, even if a large number of still image files are recorded in the DVD-RAM 305, thumbnails can be displayed at high speed.
  • the operation of recording the DCF basic file on the DVD-RAM 315 is taken as an example.
  • the present invention is not limited to this, and the same applies to the case where the TIFF file 331 is recorded on the DVD-RAM 315.
  • the TIFF file 331 is recorded on the DVD-RAM315, the Exif-standard compliant information 333 and the DCF thumbnail file 336 are recorded in the inner area 309 of the DVD-RAM315. Side area It is assumed that TIFF file 331 and DCF thumbnail file 336 are recorded in 310.
  • the force described as that all copies of the attached information are recorded in the area 309 on the inner periphery side of the DVD-RAM 315 is not limited to this.
  • a copy of some of the attached information may be recorded in the area 3099 on the inner periphery side of the DVD-RAM 315.
  • all APP1 (323) and SOI (322) in FIG. When the copy is recorded, for example, the entire APP 1 (323) or the excerpt information is recorded without recording the SOI (322) in FIG.
  • APP1 (323) excerpt information is recorded, for example, information excluding the APP1 marker in FIG. 29 or information excluding the APP1 data length is recorded.
  • the area 309 on the inner periphery side of the DVD-RAM 315 may be recorded in units of SOI and APP 1 in FIG. 29, or may be recorded in units of APP 1 alone.
  • the part of APP1 excluding the first 2 bytes (APP1 marker) may be recorded as a unit, or the part of APP1 excluding the first 4 bytes (APP1 marker and APP1 data length) may be recorded as a unit. It doesn't matter. However, if the first 4 bytes are excluded, the data size may be recorded separately.
  • the area 309 on the inner periphery side of the DVD-RAM 315 only needs to record at least a copy of a thumbnail image or a copy of search information for searching for image information.
  • thumbnail data is read in advance and placed in the memory.
  • index display is performed at high speed using the thumbnail data on the memory.
  • Thumbnail data is about 8k bytes per image Can put a lot of thumbnails in memory.
  • the attached information is arranged in the order of recording, the external extended information file is recorded in the order of recording. If display processing is performed while reading sequentially, thumbnail data on the outer peripheral side can be displayed at a higher speed than when reading data.
  • the digital still camera power connected to the recorder (eg, DVD camcorder 35) via the digital train interface also receives the DCF basic file and records it in the DVD-RAM on the DVD camcorder side. Similarly, by recording Entry Point or Section Marker, the recorded order can be maintained.
  • the recorder eg DVD camcorder 350 in Fig. 35
  • the basic DCF file recorded on the memory card is stored in the DVD-RAM315 via the memory card interface 354. It becomes possible. In this case as well, the recording order can be maintained by recording the Entry Point or Section Marker.
  • the external extended information file generator 352 of the recorder (DVD camcorder 350) reads the first 6 bytes of the DCF basic file received and recorded, and the APP1 data recorded in the last 2 bytes. The size is detected, the data portion is further read, and as a result, the entire portion of APP1 read is copied into the external extension information file. And record the external extended information link information in the extended information of Entry Point or SectionMarker.
  • thumbnail data can be easily recorded in the external extended information file even when an outside-encoded DCF basic file is imported and recorded.
  • the index display of the images Display processing can be performed at high speed.
  • the external extended information file can be used for high-speed search.
  • searching for metadata such as recording time and aperture value recorded in APP1 the external extended information file can be used for high-speed search.
  • seeking does not occur, so the effect of using an external extended information file is great.
  • the entire DCF basic file is recorded on the outer periphery of the DVD-RAM315. Therefore, as shown in Fig. 36, the DVD-RAM315 can be used as the DVD-RAM drive of the DVD camcorder 350. Even when inserted and accessed from a personal computer 361, one still image can be accessed and played at high speed.
  • APP1 included in the outside-recorded DCF basic file is stored in the external extended information file as it is.
  • the data size of APP1 is large. If it is too large, it may be stored after extracting a part. However, even in this case, the data structure inside APP1 is assumed to follow the DCF standard. For example, if the manufacturer note field (maker note tag) in ExiflFD of APP1 is larger than the data size that has been determined in advance, this field may be omitted.
  • APP 1 is copied and stored as it is inside the external extension information file.
  • the thumbnail data and metadata inside APP1 are separated and separate external extension information. You may create a file and reference the Entry Point or Section Marker force. In this case, however, a more detailed analysis of the data structure inside APP1 is required.
  • APP1 internal power can also extract thumbnail data and generate compact metadata to generate metadata numerical expression types (BYTE, ASCII, SHORT, LONG ⁇ RATIONAL, UNDEFINED, SLOG, SRATIONAL) and pointers It is necessary to consider recalculation of information, and processing becomes complicated.
  • the force DCF extended image file described only for the DCF basic file may be included.
  • the DCF thumbnail file recorded at the same time as the DCF extended image file may be stored in the external extended information file as thumbnail data.
  • the DCF thumbnail file does not necessarily include metadata (attached information according to the Exif standard) according to the DCF standard. Therefore, in order to make it equivalent to APP1 in the case of a DCF basic file, it is necessary to add metadata.
  • a DCF extended image file 3 ⁇ 4xif standard compliant TIFF file Exif standard compliant metadata is stored in the TIFF file, so you can add a copy of this data.
  • a TIFF file conforming to the force Exif standard described only for the DCF basic file may be included.
  • the attached information specified in the Exif standard is included in the TI FF file.
  • a copy of this attached information may be stored in the external extended information file.
  • the thumbnail data is not always included in the TIFF file according to the Exif standard.
  • the thumbnail data included in the TIFF file is determined to be uncompressed according to the Exif standard. Therefore, it is desirable to store thumbnail data that is PEG-compressed with respect to thumbnail data in the external extension information file.
  • the thumbnail data of the moving image and the thumbnail data of the still image file may be mixed to form one external extended information file.
  • the moving image metadata and the still image file metadata may be mixed to form one external extended information file.
  • Entry Point or SectionM arker force The force used to store APP1 in the referenced external extended information file is not necessarily the file referenced from the Entry Point or Section Marker, and other data can be referenced.
  • FIGS. 22 to 27 relating to the first embodiment is used.
  • FIG. 37 is a data structure diagram of an extension information ID (Extension ID).
  • Extension ID Extension ID
  • the extended information ID has a character string indicating external extension, and the data up to the character string end code is valid data.
  • the extension information ID has a separate conversion table between the specified ID for specifying the character string representing the external extension and the character string representing the external extension.
  • the extended information can be expressed by referring to.
  • FIG. 38 and FIG. 39 are data structure diagrams for the description of the extended information set (IT-DATA-SET).
  • FIG. 24 shows details and another example of the structure described in FIG. Any of the data structures described in Fig. 38 (a), Fig. 38 (b), Fig. 39 (a), and Fig. 39 (b) may be used.
  • Fig. 40 shows the extended information sub-ID and the extended information copyright information in the extended information.
  • the extended information sub-ID is the type identification of the extended information as shown in Fig. 40 (a). Indicates information.
  • the extended information copyright information in Fig. 40 (a) records the information used for copyright protection as shown in Fig. 40 (b).
  • FIG. 41 is a data structure diagram when the extended information area of the program management information has a pointer to a thumbnail.
  • “FIL E NAME” representing the external file name is selected as IT—TY of the extended information
  • “MEl / sOOOl.JPG” which is the still image file name of one scene of program 1, for example, is recorded as DATA. Is done.
  • a directory for each device manufacturer may be created in the VIDEO-RT directory as the file structure (Fig. 41). This makes it possible to eliminate the inconvenience caused by duplication of file names among device manufacturers.
  • FIG. 42 is a data structure diagram when a pointer to thumbnail data is provided in the Entry Point extended information area. As shown in Fig. 42, a program selection menu screen as shown in Fig.
  • FIG. 43 is a data structure diagram when it is recorded in the management information of Section Marker that it is a still image display section (Section Marker that specifies a still image display section is referred to as Still Section Marker below). Write).
  • FIG. 44 is a diagram showing a display state when the program of FIG. 43 is reproduced.
  • Still Section Marker is provided in the management information of the program, and the name of the still image file to be played back and its still image file as the extended information necessary for still image display there.
  • the recording device automatically records the Still Section Marker when recording a still image, so that it is possible to save the order information taken by the user. In addition to playback, it is possible to reproduce their recorded order.
  • the file name of the still image is recorded in the extended information of the Still Section Marker.
  • the name of the directory in which the still image file is stored for example, the DCF directory name may be used.
  • still image files under the specified directory are played in order.
  • the still picture file playback time may be stored in the extended information of Still Section Marker such as the playback time information of each still picture file or the total playback time information of all files under the directory.
  • reference information to the external extended information file in which the name list of the still image file is stored may be recorded. That is, the static information displayed in the external extended information of the external extended information file shown in FIG. A list of still image file names and directory names may be stored. In this case, the external extended information file may also be stored as information regarding the playback time of the still image file.
  • the information stored in the extended information of the Still Section Marker is the same in the following examples relating to the link operation between the moving image and the still image.
  • FIG. 45 is a diagram for explaining another notation example of Still Section Marker.
  • Fig. 45 (a) in order to identify the display position of the Still Section Marker, the start position specifying information in the SM program and the end position specifying information in the SM program are recorded.
  • step 505 the loop 1 from step 5001 to step 505 is performed from the start of the recording operation until the recording is completed.
  • a recording object is generated by the recording device (step 502), and the recording object is recorded (step 503).
  • object information and time map information for the object generated in step 502 are generated (step 504).
  • the object information and time map information generated in step 504 are recorded (step 506), and then playback path information is generated and recorded (step 507).
  • Section Marker information is generated and recorded in the recorded area (step 508), and the recording operation is terminated.
  • a still image is recorded by a user instruction or the like during the loop 1 operation from step 501 to step 505, a still section marker is generated and recorded in step 508.
  • the Still Section Marker is generated so that the program is reproduced in the order in which the video and still images are recorded.
  • the section marker information need not be recorded during the recording operation.
  • step 601 playback path information recorded on the disc is read (step 601).
  • step 602 the playback target data is selected based on the playback path information read in step 601 (step 602), the time map information of the target data determined in step 602 is read (step 603) and the segment marker Information is read (step 604).
  • step 606 the object to be played is first read (step 606).
  • step 607 determine whether the object to be played is the area specified by the Section Marker information.
  • Step 610 determine whether the playback device has the corresponding Section Marker ID. If so, determine whether the playback device has the corresponding Section Marker ID. (Step 610). If the playback device has a corresponding Section Marker ID, it is further determined whether or not the Section Marker is a Still Section Marker (step 611). If it is a Still Section Marker, the corresponding still image is read and reproduced (step 612). If it is Still Section Marker! / ⁇ , the extended information is executed (step 613) and playback is performed (step 608). If the playback device is not the corresponding Section Marker ID in step 610, playback is simply performed (step 608). When playback of all the data to be played back is completed, loop 1 is finished and the playback operation is finished.
  • Fig. 48 is an explanatory diagram of a method of recording a still image only program using the Still Section Marker.
  • a program that does not include substantial playback video data is provided in a program, and the playback time of the program is set to 0, so that a program with only still images is configured.
  • a program with only a still image may be configured by providing an entry point or section marker that skips playback of the main program to avoid playback of the main program.
  • FIG. 49 is an explanatory diagram of a method for recording a user-defined program for the program with the Still Section Marker attached in FIG. 43.
  • the user-defined program can display the still image display time in the program. It is also possible to adopt a configuration in which midway force playback is started or playback is ended halfway.
  • FIG. 51 is an explanatory diagram of a method of recording still image recording data in which the same image as the still image is encoded in the main part corresponding to the still image display period while providing a still section marker when recording a still image.
  • FIG. 52 is a view for explaining display when the program to which the Still Section Marker of FIG. 51 is added is processed according to the flow chart of FIG.
  • Figure 52 (a) shows the display when a program with Still Section Marker added is played on a playback device that supports still image display
  • Figure 52 (b) shows Still Section Marker added. This is a display when a recorded program is played on a player that does not support still image display.
  • Fig. 52 (a) the still image file specified by Still Section Marker is displayed for the specified period of Still Section Marker, whereas in Fig. 52 (b), Still Section Marker is displayed on the playback device. Is ignored and the playback object is coded as is. As a result, an MPEG-encoded still image is displayed.
  • FIG. 53 is an explanatory diagram in the case of recording a still image only program using Still Section Marker.
  • a still section marker is provided at the time of recording a still image, and the same image as the still image is recorded in the main part corresponding to the still image display period.
  • the program consists of still images only.
  • MPEG When MPEG encoding the same image as a still image in the main part, it may be encoded at a higher resolution than the other main part.
  • the main part is Standard Definition (SD)
  • the still picture section may be encoded with High Definition (HD). Encoding in HD makes it possible to display higher definition video on a player that does not support still images.
  • SD Standard Definition
  • HD High Definition
  • FIG. 54 is an explanatory diagram of a method of recording a user-defined program for the program with the Still Section Marker attached in FIG. 51.
  • the user-defined program can start or stop playing halfway through the still image display time in the program. It is also possible to take a configuration such as
  • the user-defined program 1 By adopting the above-described method, it is possible for the user-defined program 1 to have the same program display time for a still picture compatible player and a still picture non-compliant player.
  • a still section marker is provided at the time of recording a still image, and for the section corresponding to the still image display period, special data is referred to the program management information. It is explanatory drawing of the method of recording information.
  • the special data is data having a reproduction time sufficiently longer than the duration time specified by the Still Section Marker!
  • the special data referred to by the program management information may all be the same data, or may refer to different data. By sharing the same data, the amount of data recorded on the disc can be reduced.
  • the special data may be stored in a file different from the file in which the program data is stored.
  • FIG. 56 is a diagram for explaining a display when the program with the Still Section Marker attached in FIG. 55 is processed according to the flowchart in FIG.
  • Figure 56 (a) shows the display when a program with Still Section Marker added is played on a player that supports still image display
  • Figure 56 (b) shows that Still Section Marker is added. This is the display when the recorded program is played on a player that does not support still image display.
  • Fig. 56 (&) the still image file specified by Still Section Marker is displayed for the specified period of 3 1136 ( ⁇ 011 Marker
  • Fig. 56 (b) Still Section Marker is displayed.
  • the decrypted content of special data is displayed.
  • the display time of the program can be set on a still image compatible player and a non-still image compatible player. Can be the same.
  • the special data may be an error message indicating that still image data is associated with this section, or data encoded with blue background MPEG! / ⁇ ⁇ ⁇
  • FIG. 57 is an explanatory diagram of a case where a still-only program is recorded using the Still Section Marker.
  • a still segment marker is provided when recording a still image
  • a program containing only still images is configured by recording special data in the main part corresponding to the still image display period.
  • FIG. 58 is an explanatory diagram of a method of recording a user-defined program for the program with the Still Section Marker attached in FIG. As shown in this example, each of the main parts of program 1 is referred to, and information is extracted from the still section marker of program 1 and a new Still
  • the user-defined program 1 By adopting the above method, it is possible for the user-defined program 1 to have the same program display time for a still picture compatible playback apparatus and a still picture non-compatible playback apparatus.
  • FIG. 59 is an explanatory diagram of Still Section Marker in which overlay attribute information is described in the extended information in addition to the still image file name.
  • the overlay attribute information in Fig. 59 includes the presence / absence of an overlay instruction, an overlay instruction, and the like. Then, an overlay compatible player can display a still image external file while performing the instructed overlay method in a still image display section in which Still Section Marker is set.
  • FIG. 60 is a view for explaining the display at the time of data reproduction of FIG. Fig. 60 (a) shows the display when data with Section Marker with overlay attribute information added as shown in Fig. 59 is played on an overlay compatible device, and Fig. 60 (b) shows Section Marker in Fig. 59. This is a display when data is played back when no power is added.
  • FIG. 60 (a) the still image is displayed while executing the overlay instruction content in the overlay attribute information in the part where main part 2 is displayed in FIG. 60 (b).
  • the contents of the overlay instruction at this time include: Z for not playing the main audio, Z for still image layout information (centering, top alignment, etc.), and still image scaling information (to 80%) (Reduction etc.) designation, Z stillness to display the main video in the remaining area when still image is reduced or centered, transition effect designation, etc.
  • Section Marker is set for the main part, but the period corresponding to main part 1 ' ⁇ 2' in Figure 51 and Figure 55 (period in which still images are recorded by MPEG encoding, special (Data recording period).
  • information indicating the type of period (still image, special data, etc.) corresponding to main part 1 '' 2 'in FIGS. 51 and 55 may be added.
  • FIG. 61 is another structure diagram of the section marker. Unlike FIG. 24, the pointer has a pointer to thumbnail data corresponding to the section marker as a common data structure.
  • the data format of the still image external file is the same data structure as the other program information shown in Fig. 41 and Fig. 42 and the thumbnail data of Entry Point, it can be used for recording and playback of thumbnails.
  • the system can be shared and an efficient system can be configured.
  • the pointer information to the thumbnail data may be the external extended information file described with reference to FIGS. 26 and 27.
  • each thumbnail data is stored as each external extended information in the external extended information file.
  • a pointer to thumbnail data corresponding to Entry Point may be used as a common data structure.
  • the data structure at this time is shown in FIG. This makes it possible to display thumbnail data instead of still image files in a still image display section on a still image incompatible playback device when managing the still image playback section using Entry Point. Become.
  • the format of the extended information in the example relating to the linked operation of the moving image and the still image is not limited to the content described with reference to FIGS. 25, 38, 39, and the like.
  • the type information of Entry Point and Section Marker it may be possible to have a data structure that has been determined.
  • the Entry Point type information indicates that the Entry Point corresponds to the still picture management section
  • the position specifying information in the program indicates the start position of the still picture playback section
  • the still picture is included in the extended information.
  • the MPEG encoded data of the same image as the still image is recorded in the main part corresponding to the still image display period, or the special data is stored in the program management information. Record information to refer to, or record nothing in particular.
  • the DVD-RAM is used as the information recording medium.
  • the other DVD-RAM is not an optical disc, hard disk drive, and other magnetic recording media.
  • a semiconductor memory or the like may be used.
  • the playback time for the program can be made the same.
  • the program was played on a player that does not support still images.
  • the user can also be notified that the section is a section in which a still image is to be played.
  • the functional block configuration of the DVD recorder is as shown in FIG. 19 and FIG.
  • the DVD recorder executes the recording process mainly by operating the functional blocks shown in FIG. In the following description, it is assumed that configurations not particularly mentioned are as described above.
  • FIG. 64 shows video management information and extended video management information recorded in the DVD-RAM 315 by the DVD recorder of this embodiment.
  • the video management information and the extended video management information are independent files.
  • the video management information file is recorded in the area 309 on the inner periphery side of the DVD-RAM 315.
  • the extended video management information file is recorded in the area 310 on the outer circumference side of 0 ⁇ 0 ⁇ 1 ⁇ 1315. This file is not recorded in the area 309 on the inner periphery.
  • the reason is that if the video management information conforms to the standard, it can be recorded in the area 309 on the inner periphery, but the extended video management information does not conform to the standard. It is the power that is different from the video management information generated by extending the video management information.
  • the extended video management information file is recorded in the area closer to the inner peripheral area 309 in the outer peripheral area 310. Since video management information and extended video management information are selectively read out when playing back a moving image or still image, if they are placed close together, the access time will be almost the same regardless of which file is read. It is.
  • the video management information includes an original playback path information table and a user-defined playback path information table.
  • the data structure of the video management information is as shown in FIG. Therefore In the case of a general DVD player, this video management information can be read out from the inner area 309 of the DVD-RAM 315 and analyzed.
  • the extended video management information is unique information generated by the DVD recorder of this embodiment in order to manage still images together with moving images.
  • the extended video management information includes an extended original playback path information table and an extended user-defined playback path information table. Each table is expanded by adding other information to the contents of the original playback path information table and the user-defined playback path information table.
  • the extended video management information is also referred to in Embodiments 3 to 5 to be described later, but both are the same as the contents described in this embodiment.
  • the extended original playback path information table is generated when the DVD recorder is first recorded, and specifies a path for continuously playing the recorded program from the beginning to the end. However, since the contents of this table may be modified by editing after recording, it does not always specify the playback path to the beginning of the recorded program.
  • the extended user-defined playback path information table defines playback paths defined by the user. The user can use the user IZF unit 222 to define the playback path.
  • FIG. 65 shows the structure of an original playback path information table and an extended original playback path information table according to this embodiment.
  • the data structure of the original playback path information table is the same as in FIG.
  • the extended original playback path information table consists of extended original playback path information # 1 (V2—0—PGC information # 1) and extended original playback path information #n (v2—O—PGC information #n).
  • Extended original playback path information (v2-O—PGC information) is general information and extended original cell information # 1 (v2—O—CELL information # 1). n).
  • FIG. 66 shows the structure of the user playback path information table and extended user playback path information table according to this embodiment.
  • the data structure of the user playback path information table is This is the same as FIG.
  • the extended user playback path information table includes extended user playback path information # 1 (v2—U—PGC information # 1) to extended user playback path information #n (v2—U—PGC information #n).
  • Extended user playback path information (v2—U—PGC information) is extended from general information and extended user cell information # 1 (v2—O—CELL information # 1) to extended user cell information #n (v2—O—CELL information #n) ).
  • FIG. 67 shows the correspondence between the original playback path information # 1 (O—PGC information # 1) and the extended original playback path information # 1 (V2—0—PGC information # 1) according to this embodiment. .
  • FIG. 67 also shows moving images and still images that are referenced in these pieces of information.
  • the DVD recorder first records still images (Still # 1 and # 2), and then records content in the order of moving images, still images, moving images, and moving images. It should be noted that the DVD recorder according to the present embodiment records a still image and generates and records a moving image based on the still image. Then, using the generated moving image, original playback path information and extended original playback path information are generated.
  • Original playback path information # 1 is the original cell for movies (OC-M) 671, 673, 6 75 isotropic is also constructed.
  • Each original cell (OC-M) contains information for specifying the playback start point and playback end point of the target video. This information is indicated, for example, by the PTS of the playback start frame of the moving image and the presentation time (PTM) indicating the display completion timing of the playback end frame of the moving image.
  • PTS the playback start frame of the moving image
  • PTM presentation time
  • Original cells (OC-M) 671 and 673 specify the playback start point and playback end point for moving images generated based on still images.
  • Original cell (OC-M) 675 specifies the playback start point and playback end point of the input movie (Movie # 1).
  • the extended original playback path information # 1 is composed of an original cell (OC-M) 675 for moving pictures, an original cell (OC-S) 672, 674 for still pictures, and the like.
  • the original cell (OC-M) for video is the same as that of the original playback path information.
  • the original cell (OC-S) for still images will be described in detail below.
  • the original cell (OC—M) for moving images in the corresponding original playback path information # 1 is duplicated and stored.
  • link information for each still picture data is stored in the original picture cell (OC-S).
  • the link information is information for specifying that still image data can be read out, and is, for example, the file path and file name of the corresponding still image file (JPEG data file, etc.).
  • an original cell (OC-S) 672 for a still picture includes the same information on the reproduction start point and reproduction end point as the original cell (OC-M) 671 of the original reproduction path information # 1. It also contains link information (file path and file name) for still image (Still # 1) data. Also, the original cell (OC-S) 674 for still images includes the same information on the playback start point and playback end point as the original cell (OC-M) 673 of the original playback path information # 1. It also contains link information (file name and file name) for still image (Still # 2) data. The same applies to the still image (Still # 3) input later.
  • the original cell (OC-M) 675 for moving images is the same as the original cell (OC-M) 675 in the original reproduction path information # 1.
  • the entry point for the original cell of the original playback path information is the same entry point for the corresponding original cell of the extended original playback path information. Record in the same way.
  • the following describes the process by which the DVD recorder generates PGC information when moving image data and Z or still image data are received.
  • Fig. 68 shows a procedure by which the DVD recorder generates PGC information.
  • the DVD recorder receives data to be recorded.
  • the system control unit 212 determines whether the data is still image data or moving image data. For example, the system control unit 212 determines that the data input path is from the camera unit 223 as still image data, and the data input from the analog broadcast tuner 213 or the digital broadcast tuner 2 15 is video data. judge. The system control unit 212 may make the above determination based on the format of the received data. If it is still image data, the process proceeds to step 703, and if it is moving image data, the process proceeds to step 704. In step 704, the system control unit 212 generates moving image original cell information (OC-M), and updates the original PGC information and the extended original PGC information.
  • O-M moving image original cell information
  • step 703 the system control unit 212 generates original image information (OC-S) for still images and stores link information to still image data.
  • step 705 the system control unit 212 adjusts the size of the still image, arranges a plurality of the still images, and generates a moving image. The number of still images arranged is determined according to a predetermined display time.
  • step 706 the system control unit 212 generates moving image original cell information (OC-M) for the moving image generated based on the still image.
  • step 707 the system control unit 212 updates the original PGC information by adding the generated moving image original cell information to the original PGC information.
  • step 708 the system control unit 212 stores the moving image original cell information in the still image original cell information, and updates the extended original PGC information.
  • PGC information shown in Fig. 67 can be generated.
  • FIG. 69 two types of PGC information related to the playback path defined by the user will be described.
  • These PGC information is the two kinds of original PGC information generated by the above procedure. It is prescribed using each information.
  • FIG. 69 shows the relationship between user playback path information (U—PGC information) and extended user playback path information (v2-U—PGC information) according to this embodiment.
  • the user reproduction path information # 1 (U—PGC information # 1) is composed of a moving image user cell (UC—M).
  • U—PGC information # 1 has information specifying the arbitrary playback start point and playback end point in the video generated based on the still image (Still # 2). Contains.
  • the still image (Still # 2) is reproduced.
  • the user cell arranged second in the zero information # 1 includes information for specifying an arbitrary reproduction start point and reproduction end point in the movie (Movie) # 3, as indicated by a broken line.
  • the extended user playback path information (v2-U—PGC information # 1) is composed of a moving image user cell and a still image user cell power.
  • This still picture user cell has link information to still picture data (Still # 2).
  • the information of the moving image user cell (UCM) defined in the U-PGC information # 1 is duplicated and stored!
  • the moving image user cell in the extended user playback path information corresponds to the moving image user cell in the user playback path information. This has link information for video data # 3.
  • a DVD recorder that supports recording of moving images and still images performs the processing shown in FIG. 68 when recording moving images or still images, so that the original playback path information table shown in FIG. The cell is stored in the extended original playback path information table.
  • the original cell for the moving image is stored in both the original reproduction path information table and the extended original reproduction path information table in FIG.
  • the drive 221 records the playback path information (PGC information) including each table and the input moving image data in the DVD-RAM.
  • the encoder 214 when still image data is input from the camera unit 223, the encoder 214 generates an MPEG-2 moving image based on the still image. Then, the system control unit 212 sets the original playback path information to the moving image original cell (OC-M) referring to the still image data. Store in the report (O—PGC information). At the same time, the still image encoder 224 encodes the still image into JPEG data. In addition, the system control unit 212 stores the original cell (OC—S) for still images referring to the JPEG data in the extended original reproduction path information (V 2 —O—PGC information). This original cell for still images includes a copy of the original cell that references MPEG2 image data. The drive 221 records PGC information including each table, JPEG data, and moving image data based on still images in the DVD-RAM.
  • PGC information including each table, JPEG data, and moving image data based on still images in the DVD-RAM.
  • entry point for example, entry point for bookmarking, printing, chapter division, etc.
  • entry point for bookmarking for example, entry point for bookmarking, printing, chapter division, etc.
  • the DVD recorder may be provided with a memory card slot, and the DVD recorder may read out and obtain the still image data file from the memory card loaded in the memory card slot.
  • the read still image data file may be written to DVD-RAM.
  • the still image data file on the memory card recorded by the digital still camera or the like can be copied to the DVD-RAM via the memory card slot.
  • the still image data is decoded, and the still image is encoded and recorded in the MPEG-2 video image by the encoder 214.
  • the original cell for moving image and the original cell for still image are recorded in the same manner for the original reproduction path information and the extended original reproduction path information.
  • the number of pixels is set to MPEG-2 video. It needs to be resized to fit the image.
  • the playlist is recorded in the user-defined playback path information table shown in FIGS. 64 and 66 and the extended user-defined playback path information table.
  • DVD recorders that support video-only recording update only the user-defined path information table.
  • DVD recorders that can record video and still images update the extended user-defined playback path information table in addition to updating the user-defined playback path information table.
  • DVD recorders that can record video and still images compare the original playback path information table with the extended original playback path information table before recording video or still pictures, and expand original playback corresponding to each original playback path information. Verify whether the route information exists. If the extended original playback path information corresponding to the original playback path information does not exist, the extended original playback path information is added.
  • the extended original playback path information table side may have a correspondence between the identification number of the original playback path information and the identification number of the extended playback path information.
  • the DVD recorder should also perform verification and repair processing at the start of playback.
  • the DVD recorder does not add the new extended original playback path information to the extended original playback path information table, and plays back. Sometimes it is possible to respond. That is, even when extended original playback path information corresponding to the original playback path information does not exist at the start of playback, the DVD recorder may play back based on the original playback path information. Similarly, playback may be performed based on the user playback path information table when there is no extended user playback path information.
  • the DVD recorder may perform the above-described verification processing and repair processing as pre-processing when the user starts editing the original playback path information. That is, the recorded motion It may be pre-processing when performing image deletion, partial deletion, or combination processing.
  • DVD—RAM is transferred between a DVD recorder that supports only the video recording format and a DVD recorder that can record still images based on the video recording format. Even if recording is performed, it is possible to play back the moving images in the order in which they were recorded. In addition, this does not change even when a still image is recorded between video recordings by a device capable of recording still images.
  • the extended original playback control information is updated to the state after the change of the original cell, or the cell for the video that referenced the deleted video, Alternatively, in order to delete a still image cell or to prohibit modification of the extended original playback control information, it is possible to implement a modification prohibition flag bit to suppress additional modification.
  • the video cell of the original playback control information that is changed by a DVD recorder that supports recording only movies may refer to MPEG movie data that records movies, or MPE G data that records still images. There is also.
  • a device capable of recording and reproducing both a moving image and a still image can reproduce both the moving image and the still image by referring only to the extended original reproduction control information table.
  • the content added with a DVD recorder that supports recording only movies is not Verification processing and repair processing are required.
  • a device capable of recording and playing back both moving images and still images may write it in the corresponding extended original playback control information table when reading the media for the first time. Further, without performing such writing, the original control information corresponding to the logical sum may be reproduced by combining both the original control information table and the extended original control information table at the time of reproduction. The same applies to the user-defined playback path information table and the extended user-defined playback path information table.
  • This embodiment is positioned as a variation of the second embodiment.
  • the original playback path information constituting the extended original playback path information table has attribute information described later.
  • moving image data having the same content as the still image that is, the same subject
  • O-M duplicate data of the original cell
  • FIG. 70 shows an original playback path information table and an extended original playback path information table according to this embodiment.
  • attribute information is defined in the original playback path information in the extended original playback path information table.
  • This attribute information specifies one of the following states 1 to 3. That is, in state 1 of “0—PGC information only”, state 2 of “0—PGC information and V2-0—both PGC information”, and state 3 of “v 2—O—PGC information only” is there.
  • the purpose of setting these states is to easily and quickly grasp the format of data recorded in the DVD recorder that supports the processing of the second embodiment.
  • State 1 indicates that the extended original playback path information and the original playback path information exist, but the actual path information is described only in the original playback path information.
  • Extended original playback path information only exists formally.
  • v2—O—CELL information #k need not exist and only general information need be described.
  • the attribute information indicates information 1
  • the layerer acquires the original playback path information table power path information and plays it back.
  • a recording medium on which specific original playback path information (O—PGC # i) is recorded by a DVD recorder that supports only moving image recording is a recording of both a moving image and a still image. This corresponds to a case purchased in a DVD recorder compatible with.
  • the corresponding extended original playback path information (V2-0—PGC #i) is generated in the extended original playback path information table.
  • the original video cell (OC-M) is not duplicated.
  • State 2 indicates a state in which extended original playback path information also exists corresponding to the original playback path information. According to the recording process described in the second embodiment, the attribute information indicates this state 2.
  • State 3 indicates a state in which the original playback path information corresponding to the extended original playback path information does not exist.
  • the attribute information is set to state 3 in the following example.
  • the DVD-RAM power in which the attribute information of the state 2 is described corresponds to the processing of the second embodiment, and is loaded in a DVD recorder that supports recording only a moving image.
  • the original playback path information is also deleted at the same time.
  • the DVD recorder has the extended original playback path information on the DVD-RAM, but the original playback path information corresponding to the extended original playback path information.
  • the attribute information of the extended original playback path information is changed to state 3.
  • an identification number is assigned to each of the original playback path information and the extended playback path information, and the correspondence between both identification numbers is extended to the original. It may be described in the playback path information table.
  • the DVD recorder does not need to add a cell for each video.
  • all the reproducible video original cells may be registered in the extended original playback path information table! / Or not! / ,.
  • the DVD recorder may not handle state 1 described above. This is because state 1 can easily transition to state 2. That is, in state 1, the description of the moving cell specified in the original playback path information may be copied as it is into the extended original playback path information.
  • the attribute information described above may be provided in the extended user playback path information table.
  • FIG. 71 shows the relationship between user playback path information and extended user playback path information according to this embodiment. Attribute information is described in the general information in each v2-U-PGC information #k of the extended user playback path information. The state represented by the attribute information is the same as the state described in relation to the extended original playback path information.
  • FIG. 72 shows the correspondence between original playback path information # 1 (O—PGC information # 1) and extended original playback path information # 1 (V2-0—PGC information # 1) according to this embodiment.
  • Original playback path information # 1 consists of the original cell (OC-M) for video.
  • the extended original playback path information # 1 is composed of an original cell (OC-M) for moving images and an original cell (OC-S) for still images.
  • the original cell for the still image refers to the still image file (Still # 1, Still # 2, Still # 3).
  • the original playback path information # 1 does not describe a moving image generated based on a still image. Therefore, the DVD recorder does not need to generate a moving image based on a still image as in the second embodiment. As a result, the processing from step 703 to step 708 in FIG. 68 becomes unnecessary.
  • the entry point for the moving image cell of the original reproduction path information is also set for the moving image cell corresponding to the extended original reproduction path information. Corresponding entry points indicate the same playback position.
  • FIG. 73 shows the relationship between user playback path information and extended user playback path information according to this embodiment.
  • User playback path information # 1 records a user cell (UC-M) for video.
  • the user cell for video in user playback path information # 1 is moved to video data Movie # 3 With link information.
  • link information to a moving image generated based on a still image is not recorded. This link information may be defined as in the second embodiment.
  • the extended user playback path information # 1 includes a moving image user cell (UC-M), which is a copy of the user cell in the user playback path information # 1, and a still image user cell (UC-S). ) Is recorded.
  • the still picture user cell in the extended user playback path information # 1 has link information to the still picture data Still # 2.
  • DVD recorders that support video and still image recording use the original playback path information table shown in Figs. 64 and 70 and the Z or extended original playback path information table shown in Fig. 64 when recording video or still images. To store the video cell.
  • the DVD recorder when recording a moving image, the DVD recorder first converts the original cell (OC-M) for the moving image to the original reproduction path information table and the extended original reproduction path shown in FIG. Record in both tables of the information table. The DVD recorder then sets the attribute information of the extended original playback path information to indicate status 2.
  • O-M original cell
  • the DVD recorder sets the attribute information of the extended original playback path information to indicate status 2.
  • the DVD recorder when recording a still image, the DVD recorder encodes the still image into JPEG data by the still image encoder 224 and records it in the DVD-RAM.
  • the still picture original cell (OC-S) having link information to the JPEG data is recorded in the extended original playback path information (v2-O-PGC information # 1).
  • the attribute information is set to state 3.
  • the DVD recorder sets the attribute information to state 2. The same applies to user playback path information and extended user playback path information.
  • any entry point for the original cell for moving picture of the original playback path information is recorded by the user, it is similarly recorded as the same entry point for the corresponding original cell of the extended original playback path information.
  • the entry point for the original cell for still images is recorded only on the extended original playback path information side.
  • a DVD recorder that supports recording of moving images only records moving images. Only the original cell for moving images is added to the original playback path information table shown in FIG. 64, FIG. 70, and FIG. At this time, new original playback path information may be added, and the original cell for moving images may be stored therein, or may be stored in the existing original playback path information.
  • the playlist is recorded as a user-defined playback path information table and an extended user-defined playback path information table as shown in FIG. 64, FIG. 71, and FIG. DVD recorders that support video-only recording update only the user-defined path information table. DVD recorders that can record video and still images update the user-defined playback path information table in addition to updating the user-defined playback path information table.
  • a DVD recorder capable of recording moving images and still images compares the original reproduction path information table with the extended original reproduction path information table before recording the moving images or still images, and compares each original reproduction path information. It is verified whether there is extended original playback path information corresponding to. If the extended original playback path information corresponding to the original playback path information does not exist !, the extended original playback path information need not be added. The same applies to user playback path information and extended user playback path information.
  • the extended original playback path information table side may have a correspondence between the identification number of the original playback path information and the identification number of the extended playback path information. . This verification process may be performed at the start of playback.
  • the DVD recorder may play back the original playback path information by detecting that there is no extended original playback path information corresponding to the original playback path information at the start of playback.
  • Such verification processing and restoration processing may be performed as pre-processing when the user starts editing the original playback path information.
  • the recorded video can be deleted or partially deleted.
  • pre-processing when performing the combination processing or the like may be performed as pre-processing when the user starts editing the original playback path information.
  • the present embodiment compared to the processing according to the second embodiment, it is not necessary to generate and record moving image data based on a still image when recording the still image. For example, it means that only JPEG data needs to be recorded as a still image, and MPEG data need not be generated. According to this process, the user cannot play back a still image using a DVD recorder that supports recording of only moving images, and cannot confirm the contents. However, since less processing is required, implementation on a DVD recorder can be facilitated.
  • DVD-RAM is passed between a DVD recorder that supports only the movie recording format and a DVD recorder that can record still images based on the movie recording format, and each movie is recorded. However, it is possible to play back the movie in the order in which it was recorded. Also, this is true even when still images are recorded on the media by a device that also records still images!
  • a device capable of recording and reproducing both moving images and still images can record and reproduce both moving images and still images by referring only to the extended original reproduction control information table.
  • a device capable of recording and playing back both moving images and still images may add and write in the corresponding extended original playback control information table when reading media for the first time.
  • the still image cell does not include a moving image cell.
  • a moving image may be generated based on a still image and described in a still image cell.
  • the processing of the DVD recorder cannot be reduced, but can be easily converted into the data structure shown in the second embodiment.
  • the playback control information composed of only moving image cells may or may not be registered in the extended original playback control table.
  • Embodiments 4 and 2 are also positioned as a noriation of the second embodiment.
  • the difference between Embodiments 4 and 2 is that, firstly, when recording a still image, a movie with the same content as the still image is not recorded, and the cell for the movie corresponding to the still image is also included in the playback path information. It is inadvertently stored.
  • the extended playback path information does not include a cell for moving image.
  • the data structures of the original playback path information table, extended original playback path information table, user playback path information table, and extended user playback path information in this embodiment are as shown in FIGS.
  • FIG. 74 shows a correspondence relationship between original reproduction path information # 1 and extended original reproduction path information # 1 according to this embodiment.
  • Original playback path information # 1 is the original for video Consists of Roussel (OC-M).
  • the extended original playback path information # 1 also includes an original cell (OC-L) for linking to a moving image cell and an original cell (OC-S) force for a still image.
  • the original cell for still images has link information for the still image data (Still # 1, Still # 2, Still # 3), and refers to the still image file (Still # 1) using the link information.
  • This link information may be defined as in the second embodiment.
  • the original cell for still images does not have a copy of the original cell for moving images (OC-M) in the corresponding original playback path information # 1.
  • the extended original playback path information # 1 does not include the original cell for the moving image, but instead includes the original cell (OC-L) for linking for linking to the cell for the moving image.
  • the original cell for linking has information that specifies the number of cells in the leading power of the original playback control information # 1.
  • FIG. 75 shows the relationship between user playback path information and extended user playback path information according to this embodiment.
  • User playback path information # 1 consists of an original cell (OC-M) for video.
  • extended user playback path information # 1 is composed of a cell (OC-L) for linking moving image data and an original cell (OC-S) for still images.
  • the user cell for still image (UC-S) has a copy of the user cell for video (UC-M) in the corresponding user playback path information # 1 inside.
  • a DVD recorder that supports recording of a moving image and a still image adds a cell to the original playback path information table in Fig. 70 and the Z or extended original playback path information table in the figure.
  • the original cell for the movie is recorded in the original playback path information table, and the original cell for the movie is referenced in the extended original playback path information table of the same figure.
  • the cell for the link to be stored is stored.
  • the still image is encoded into JPEG data by the still image encoder 224 and recorded in the DVD-RAM.
  • a cell that refers to this JPEG data is recorded in the extended original playback path information (OC-S).
  • O-S extended original playback path information
  • DVD recorders that support recording of moving images only have the function shown in FIG.
  • the original cell is tracked only for the 4 original playback path information table.
  • the playlist is recorded as a user-defined playback path information table and an extended user-defined playback path information table as in FIG. DVD recorders that support video-only recording update only the user-defined path information table in Figure 64. DVD recorders that can record moving images and still images update the user-defined playback path information table in addition to updating the user-defined playback path information table.
  • a DVD-RAM is passed between a DVD recorder that supports only the video recording format and a DVD recorder that can record still images based on the video recording format. Even if recording is performed, it is possible to play back the movie in the order in which it was recorded. Also, this does not change even when still images are recorded on the media depending on the device that also records the still images!
  • the update time of the original playback control information and the update time of the extended original playback control information are compared, and if the original playback control information is newer, an overview of changes such as changes has been detected. You may be able to do it.
  • This detection process is performed by loading a disc on which a moving image and a still image are recorded on a DVD recorder that supports recording only the moving image, and deleting the moving image and deleting the moving image related to the original cell for the moving image. It is particularly useful at times. In such a case, it is possible to identify the original cell for the changed video even if the cell information is compared between the changed original playback control information and the corresponding extended original playback control information. Because it's limited! /. In the above process According to this, it becomes possible to handle such as prohibiting modification of the extended original playback control information.
  • a DVD recorder capable of recording and playing back both moving images and still images refers to both the extended original playback control information table and the original playback control information, and Both images can be played back.
  • the DVD recorder can be played back using the control information contained in at least one of the original control information table and the extended original control information table. This is synonymous with, for example, performing an OR operation on each data in both tables.
  • the above description can be similarly applied to the user-defined playback path information table and the extended user-defined playback path information table.
  • the playback control information configured only by the cells for moving images may or may not be registered in the extended original playback control table. Further, the cell for the still image of the extended original reproduction control information may be included as in the second embodiment, not including the cell for the moving image.
  • the extended original playback control information includes a link cell that refers to a moving image cell instead of the moving image cell.
  • a copy of the moving cell recorded in the original playback control information may be stored in the extended original playback control information.
  • This embodiment is also positioned as a noriation of the second embodiment.
  • the difference between the fifth embodiment and the second embodiment is that, in addition to the playback path information including a moving image cell and a still image cell, a playlist link cell that refers to different playback path information is provided. There is to include.
  • cells for linking playlists are mainly defined in user-defined playback path information.
  • FIG. 76 shows the data structure of extended user-defined playback path information # 1 (v2-U-PGC # 1) according to this embodiment.
  • FIG. 76 also shows user-defined playback path information # 1 (U—PGC # 1) composed of video user cells (UC—M).
  • U—PGC # 1 U—PGC # 1
  • U—PGC # 1 U—PGC # 1
  • U—M video user cells
  • FIG. 76 shows the data structure of extended user-defined playback path information # 1 (v2-U-PGC # 1) according to this embodiment.
  • U—PGC # 1 User-defined playback path information # 1 (v2—U—PGC # 1)
  • the still picture user cell (UC—S) refers to the still picture data and records a copy of the corresponding moving picture user cell (UC—M) inside.
  • One moving image user cell (UC-M) contains the same information as the user cell (UC-M) of user-defined playback path information # 1 (U—PGC # 1), and refers to moving image data
  • Extended user-defined playback path information # 1 (v2—U—PGC # 1) further includes a playlist link cell (UC—L).
  • the cell for link of the playlist (UC-L) stores link information to the extended user playback path information # 2 (v2-U-PGC information # 2).
  • v2-U-PGC information # 2 is the existing extended user playback path information recorded on the recording medium.
  • the link information may be, for example, the serial number of the extended user playback path information at the link destination, or the file path and file name of a table including the extended user playback path information.
  • a DVD recorder that supports recording of moving images and still images stores the extended user playback path information specified by the user via the user IZF unit 222 or the like as link information, and the processing shown in the second embodiment. The same processing is performed to generate each extended user playback path information.
  • the link information according to this embodiment can be added by editing after the extended user playback path information is generated.
  • user playback route information # 2 (U—PGC information # 2) is also associated with extended user playback route information # 2 (v2—U—PGC information # 2). It exists, but ⁇ .
  • a plurality of cells for link referring to different playlists may be recorded in one extended user playback path information. During playback, data is referred to and read based on the extended user playback path information corresponding to each link cell.
  • the DVD recorder replaces the process shown in the second embodiment with one of the processes in the third or fourth embodiment or the processes shown in the third and fourth embodiments in combination with the extended user playback path information. You can generate
  • another playlist can be registered in the playback path of a playlist.
  • a comprehensive playlist that bundles multiple playlists can be created. Note that the recording, editing, and playback processes are complicated if you allow unlimited hierarchies to refer to other playlists from one playlist and further refer to other playlists from the other playlist. There is a possibility of hesitation. Therefore, a limit may be provided in the hierarchy that refers to the playlist. For example, the highest parent playlist may be counted as the first layer and limited to the third layer.
  • DVD—RAM is passed between a DVD recorder that supports only the video recording format and a DVD recorder that can record still images based on the video recording format. Even if is performed, it is possible to play back the movie in the order in which it was recorded. Also, this does not change even when still images are recorded on the media depending on the device that also records the still images!
  • the number of still images that can be shot is not limited by the number of recordable section markers, and many still images can be recorded.
  • a DVD recorder that supports recording of moving images only was loaded with a disk on which moving images and still images were recorded, and the moving image deletion process was performed to delete the moving image associated with the original cell for moving images. Even in this case, it is possible to detect an original cell for a moving image that has been changed. These detections are made possible by comparing cell information between the modified original playback control information and the corresponding extended original playback control information. When it is detected that a change has been made to the original cell for video, it is possible to update the extended original playback control information to the state after the change, or to prohibit changes to the extended original playback control information. become.
  • a device capable of recording and reproducing both moving images and still images can record and reproduce both moving images and still images by referring only to the extended original reproduction control information table.
  • content added with a DVD recorder that supports recording of moving images only is excluded.
  • Equipment that can record and play back both moving images and still images
  • the original control information corresponding to the logical sum may be reproduced by combining both the original control information table and the extended original control information table at the time of reproduction. The same applies to the user-defined playback path information table and the extended user-defined playback path information table.
  • the extended user playback path information stores a cell for linking to other extended user playback path information, but the extended original playback path information is further stored in another extended original playback path. You may store the cell for the link with respect to information.
  • cells for linking to other playlists can be stored.
  • data having other functions may be set in the playback path order information. For example, graphics cells, background music cells, etc.
  • the cell for linking the playlist is included only in the extended user playback path information, but may be included in the extended original playback path information.
  • the original playback path information, the extended original playback path information, the user playback path information, and the extended user playback path information are recorded in the respective tables. It may be recorded as a file.
  • the original playback path information table, the extended original reproduction path information table, the user playback path information table, and the extended user playback path information table may record file names of separate independent files.
  • each table may be a separate independent file.
  • section markers may be set for each piece of playback path information instead of entry points.
  • the force recorded on the DVD-RAM is an example.
  • recording media having a disk shape such as BD, MO, DVD-R, DVD-RW, DVD + RW, DVD + R, CD-R, CD-RW, etc. can be used in the f row. .
  • it may be a semiconductor memory such as a flash memory.
  • the recording medium may be FAT, UFS (Unix (registered trademark) File System), NTFS, or the like, which is supposed to be managed by UDF.
  • the moving image recording format is an MPEG-2 program stream.
  • the stream format is not limited to the program stream.
  • MPEG-2 transport stream there may be other AV data streams such as MPEG-2 transport stream, PES stream, DV stream, ISO Base Media based stream, QucikTime file, WMV (Windows (registered trademark) Media Video) stream, etc.
  • MPEG-2 transport stream with a time stamp For example, when recording on a BD, the MPEG-2 transport stream with the time stamp is recorded. This stream is generated by placing a 4-byte arrival timestamp (ATS) immediately before each 188-byte MPEG-2 transport packet.
  • ATS arrival timestamp
  • the cells constituting the playback path information are arranged in series.
  • parallel playback path information with overlapping playback timings may be used.
  • the extended video management information is a file independent of the video management information, and may be stored in the same file.
  • a cell includes a playback order and a playback time length.
  • one playback path information power is regarded as one group, and the playback order and playback time length are emphasized. Shina, handle it like this.
  • still image data can be managed in addition to moving images by using the extended original playback path information and the extended user playback path information.
  • the extended user playback path information may be used to manage other types of data such as audio data and graphics data in addition to still image data.
  • the extended user playback path information may be used to manage a higher-definition moving image together. Sarasako, You may also manage a new high-definition video using the extended original playback route information.
  • a still image is encoded by the still image encoder 224 and a JPEG data file is obtained.
  • the DVD recorder has a memory slot, and the DVD recorder is loaded in the memory card slot. You may read and acquire a still image data file from a memory card. The read still image data file may be written to the DVD-RAM. At this time, the still image data file on the memory card recorded by the digital still camera or the like can be copied to the DVD-RAM via the memory card slot.
  • the moving picture and the still picture are efficiently managed based on the data structure obtained by extending the data structure for recording the moving picture data. can do.
  • the data processing apparatus can display a mixture of moving images and still images.

Abstract

Dispositif pour gérer une image animée et un autre objet (par exemple, une image statique) en se basant sur une structure de données à extensibilité élevée. Un dispositif de traitement de données enregistre un premier objet relatif à une image animée et un second objet différent sur un support d’enregistrement. Le dispositif de traitement de données comprend une unité de réception pour recevoir le premier/second objet, une unité de commande pour créer des premières informations d’acheminement pour spécifier un acheminement de reproduction seulement pour le premier objet et des secondes informations d’acheminement pour spécifier un acheminement de reproduction pour les premier et second objets mélangés, et une unité de disque pour enregistrer le premier objet, le second objet, les premières informations d’acheminement et les secondes informations d’acheminement sur le support d’enregistrement. L’unité de commande met à jour, lorsqu’elle reçoit le premier objet, les premières informations d’acheminement et les secondes informations d’acheminement à spécifier, en utilisant le premier objet comme une unité de reproduction. L’unité de commande met à jour, lorsqu’elle reçoit le second objet, les secondes informations d’acheminement à spécifier, en utilisant le second objet comme l’unité de reproduction.
PCT/JP2005/012788 2004-07-12 2005-07-11 Dispositif de traitement de donnees WO2006006571A1 (fr)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
JP2004204399A JP2006031744A (ja) 2004-07-12 2004-07-12 Ａｖデータ記録装置および再生装置
JP2004-204398 2004-07-12
JP2004204400A JP2006031745A (ja) 2004-07-12 2004-07-12 Ａｖデータ記録装置および再生装置
JP2004204398A JP2006033028A (ja) 2004-07-12 2004-07-12 Ａｖデータ記録装置および再生装置
JP2004-204401 2004-07-12
JP2004204401A JP2006033029A (ja) 2004-07-12 2004-07-12 Ａｖデータ記録装置および再生装置
JP2004-204400 2004-07-12
JP2004-204399 2004-07-12

Publications (1)

Publication Number Publication Date
WO2006006571A1 true WO2006006571A1 (fr) 2006-01-19

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WO (1) WO2006006571A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008176842A (ja) * 2007-01-17 2008-07-31 Open Technology Kk 再生経路解析装置及び再生経路解析方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002023898A1 (fr) * 2000-09-18 2002-03-21 Matsushita Electric Industrial Co., Ltd. Dispositif et procede d'enregistrement/reproduction d'images, disque et dispositif de reproduction d'images
JP2003100055A (ja) * 2001-06-04 2003-04-04 Matsushita Electric Ind Co Ltd 記録装置、記録媒体、再生装置、プログラム、方法
JP2004005934A (ja) * 2002-04-05 2004-01-08 Matsushita Electric Ind Co Ltd 記録媒体、記録装置、再生装置、記録方法、再生方法、及びプログラム

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002023898A1 (fr) * 2000-09-18 2002-03-21 Matsushita Electric Industrial Co., Ltd. Dispositif et procede d'enregistrement/reproduction d'images, disque et dispositif de reproduction d'images
JP2003100055A (ja) * 2001-06-04 2003-04-04 Matsushita Electric Ind Co Ltd 記録装置、記録媒体、再生装置、プログラム、方法
JP2004005934A (ja) * 2002-04-05 2004-01-08 Matsushita Electric Ind Co Ltd 記録媒体、記録装置、再生装置、記録方法、再生方法、及びプログラム

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008176842A (ja) * 2007-01-17 2008-07-31 Open Technology Kk 再生経路解析装置及び再生経路解析方法

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