JP2008282479A - Device and method for creating digital cinema, device and method for reproducing digital cinema, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device for creating a digital cinema, capable of easily running divided digital cinemas by dividing a digital cinema by a proper method, and dealing with expansion of a shown version. <P>SOLUTION: The device for creating a digital cinema, for creating a digital cinema package (DCP), is provided with a CPL creation part 146 for creating a plurality of composition play list associating one or two/more picture track files, sound track files and/or subtitle track files relative to the digital cinema with one another for each shown version of one digital cinema, and a DCP creation part 160 for creating a plurality of divided DCPs containing at least the CPL corresponding to the shown version for each shown version. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a digital cinema creation device, a digital cinema playback device, a digital cinema creation method, a digital cinema playback method, and a program.

  The environment surrounding movies has changed from film to digital due to advances in digital technology, and in recent years there have been a number of screening theaters that introduced digital projectors and other digital projectors that can perform digital screening. (Digital Cinema) The era is coming. This digital cinema is a movie produced using video equipment rather than a film camera for shooting, or a movie that does not use film for screening and distribution.

  For the realization of digital cinema, in addition to video and audio technology to faithfully reproduce the image and sound intended by the creator, color space conversion, compression and encryption processing for copyright protection, etc. It is necessary to produce data in a format called a digital cinema package (DCP) that conforms to specifications proposed by the Digital Cinema Initiative (DCI), an organization established by studios. Currently, for example, 4k (4096 × 2160 pixels) and 2k (2048 × 1080 pixels) are defined as the DCP screen size.

  When a digital cinema system is realized using such a DCP, a DCP created by a server installed in a movie distribution company is provided to each movie theater, and the DCP is played back by a screening device installed in each movie theater. Digital cinema will be screened. At this time, it is necessary to ingest the DCP distributed from the distribution company into a storage device (for example, a hard disk drive) of the screening device. Here, “ingest” means that digital cinema data created by another device is converted into a data format that can be used by the receiving device and is captured. This “ingest” is a process similar to “import” which means data import in a general information processing apparatus.

  For example, Patent Documents 1 and 2 disclose a method of importing music content recorded on a medium such as an audio compact disc (CD) into a client terminal (PC). However, these documents do not disclose DCP ingest in a digital cinema screening device.

JP 2004-355342 A JP 2003-308252 A

  By the way, since a high-quality / sound-quality digital cinema has a large amount of data, one DCP is divided into a plurality of division units (volumes) so that DCP can be easily distributed from the creation server to the display device. It is possible. The DCI standard also stipulates that a volume index (Volume Index), which is index information in units of division, is included in the DCP, and is a standard that assumes DCP division.

  However, in the past, the actual situation was that an appropriate DCP division method was not defined. If a general content division method is learned, for example, a method of dividing a digital cinema content with a large amount of data in units of reels, or a method of dividing a content file itself into a plurality of files can be considered. According to such a division method, the divided individual DCPs are easy to distribute because the data amount is small.

  However, a single DCP divided by the division method is not completed as one digital cinema, and cannot be shown alone even if distributed to a screening device. In addition, in the distribution of digital cinema, operation such as distribution of the Japanese version after distribution of the English version (original version) of the digital cinema is common, and the extensibility of the screening version is required. However, the above-mentioned division method does not support expansion of the screening version of the digital cinema. As described above, in the above-described division method, it is difficult to operate the divided digital cinema and it is not convenient.

  Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to divide a digital cinema by an appropriate method and easily operate the divided digital cinema. Another object of the present invention is to provide a new and improved digital cinema creation device, digital cinema playback device, digital cinema creation method, digital cinema playback method, and program capable of supporting expansion of a screening version.

  In order to solve the above-described problems, according to an aspect of the present invention, there is provided a digital cinema creation device for creating a digital cinema package (DCP), wherein one digital cinema-related version includes one or more A CPL creation unit for creating a plurality of composition playlists (CPL) for associating two or more picture track files, sound track files, and / or subtitle track files; for each screening version, the CPL corresponding to the screening version There is provided a digital cinema creation apparatus comprising: a DCP creation unit that creates a plurality of divided DCPs including at least a DCP creation unit.

  With this configuration, the CPL creation unit creates a plurality of CPLs for each digital cinema screening version, and the DCP creation unit creates a plurality of divided DCPs for each digital cinema screening version. At least a CPL corresponding to. Thus, a digital cinema can be appropriately divided in units of screening versions, and using a CPL in the divided DCP, a screening version of a picture track file, a sound track file, and / or a subtitle track file (hereinafter referred to as “content”) corresponding to the CPL. File ") can be played. In addition, when a screening version of a digital cinema is added or changed, a new divided DCP including a CPL corresponding to the screening version is created, and this new divided DCP is distributed to extend the screening version. Yes.

  The DCP creation unit may include a first divided DCP including a first CPL corresponding to a first screening version and a picture track file, a sound track file, and / or a subtitle track file of the first screening version. , A picture track file, a sound track file and / or a subtitle track corresponding to a difference between the second CPL corresponding to the second screening version and the difference between the first screening version and the second screening version. A second divided DCP including a file may be additionally created. As a result, when the second divided DCP is distributed after the distribution of the first divided DCP, the second divided DCP is distributed to the first screening version that has already been distributed and the second additional distribution that is newly distributed. Include only content files that correspond to differences from the version. Therefore, content files can be distributed efficiently without duplication according to the expansion of the screening version.

  Further, the screening version may be a language version of the digital cinema. This makes it possible to create a divided DCP obtained by dividing the digital cinema in units of language versions, and can cope with the expansion of language versions.

  The CPL creation unit may include a first language version of the CPL that associates the first language picture track file with the first language sound track file; the first language picture track file; A second language audio version of the CPL that associates a soundtrack file of a second language and / or a picture track file of the first language, a soundtrack file of the first language, and a subtitle track of the second language A second language subtitle version of the CPL for associating the file, and the DCP creation unit includes the first language picture track file, the first language sound track file, and the first language subtitle version CPL. A first language version of a split DCP, including a language version of the CPL A second language soundtrack file and a second language audio version CPL and / or a second language subtitle track file and a second language subtitle version CPL; Language version divided DCPs may be created.

  The screening version may include an original version of the digital cinema and a replacement version obtained by deleting or changing at least a part of the scene of the original version. Thereby, the divided DCP of the original version and the replacement version of the digital cinema can be created, and the digital cinema scene can be flexibly dealt with.

  The CPL creation unit may include a CPL of an original version that associates a picture track file, a sound track file, and / or a subtitle track file corresponding to the original version; a picture track file, a sound track file corresponding to the replacement version, and And / or a replacement version of the CPL for associating the subtitle track file, and the DCP creation unit generates a picture track file, a sound track file and / or a subtitle track file corresponding to the original version, and the CPL of the original version. A divided DCP of the original version including: a picture track file, a sound track file and / or a subtitle track file corresponding to a difference between the original version and the replacement version , And a CPL of the difference replacement version, a division of DCP replacement version; may be prepared.

  The DCP creation unit includes a CPL that associates a picture track file, a sound track file, and / or a subtitle track file corresponding to the replacement version, and includes the picture track file, the sound track file, and the subtitle track file. Alternatively, a replacement divided DCP may be created. Thereby, the divided DCP of the replacement version does not include the content file, so that the data amount can be greatly reduced.

  The replacement DCP may be further provided with a transmitting unit that transmits the divided DCP to the digital cinema playback apparatus via a wireless or wired network. As a result, a replacement divided DCP with a small amount of data can be easily and quickly provided to the digital cinema playback apparatus.

  The DCP creation unit may include a picture track file, a sound track file, and / or a subtitle track file that are associated with each other by the plurality of CPLs in only one main divided DCP. As a result, since the divided DCPs other than the main divided DCP do not need to include the content file in an overlapping manner, the data amount in the plurality of divided DCPs can be reduced, and the digital cinema can be divided efficiently.

  Each of the divided DCPs may further include an asset map common to the plurality of divided DCPs and a volume index in which index information for identifying each of the divided DCPs is described. Thereby, it becomes possible to determine which digital cinema the divided DCP belongs to by an asset map corresponding to the digital cinema 1: 1. In addition, it is possible to determine the division unit number of the divided DCP based on the volume index.

  In order to solve the above problems, according to another aspect of the present invention, there is provided a digital cinema creation method for creating a digital cinema package (DCP), wherein each digital cinema show version includes the digital cinema. A CPL creation step of creating a plurality of composition playlists (CPL) associating one or more picture track files, sound track files and / or subtitle track files with respect to each showing version; And a DCP creating step of creating a plurality of divided DCPs including at least the CPL.

  In order to solve the above-described problem, according to another aspect of the present invention, a computer is a digital cinema creation device that creates a digital cinema package (DCP). A CPL creation unit for creating a plurality of composition playlists (CPL) for associating one or more picture track files, sound track files, and / or subtitle track files related to the digital cinema; A program for causing a digital cinema creating apparatus to function as a digital cinema creating apparatus is provided. The DCP creating unit creates a plurality of divided DCPs including at least the CPL corresponding to

  In order to solve the above-described problem, according to another aspect of the present invention, there is provided a digital cinema playback device for playing back a digital cinema package (DCP) stored in a storage device. For each version, a CPL corresponding to one of the screening versions of a plurality of composition playlists (CPL) that associates one or more picture track files, sound track files, and / or subtitle track files related to the digital cinema. An ingest unit for ingesting at least the divided DCP into the storage device; based on the CPL, the picture track file, the sound track file and / or the subtitle track file of the screening version corresponding to the CPL A reproducing unit for reproducing yl; characterized in that it comprises a digital cinema playback device is provided.

  With this configuration, DCP (divided DCP) divided by the ingest unit in an appropriate manner in the screening version unit is ingested into the storage device, and the playback unit performs the screening based on the CPL included in the divided DCP. Versions of picture track files, sound track files and / or subtitle track files (hereinafter “content files”) can be played. In addition, when a screening version of a digital cinema is added or changed, if a new divided DCP including a CPL corresponding to the screening version is ingested, the content file of the screening version can be reproduced. Can support version expansion.

  The ingest unit may include a first divided DCP including a first CPL corresponding to a first screening version and a picture track file, a sound track file, and / or a subtitle track file of the first screening version. After ingesting, the second CPL corresponding to the second screening version, and the picture track file, sound track file and / or subtitle corresponding to the difference between the first screening version and the second screening version The second divided DCP including the track file is additionally ingested, and the playback unit is distributed and included in the first divided DCP or the second divided DCP based on the second CPL. , The second screening version of the picture track file, the sound Rack file and / or the subtitle track file may be reproduced.

  Further, the screening version may be a language version of the digital cinema.

  The screening version may include an original version of the digital cinema and a replacement version obtained by deleting or changing at least a part of the scene of the original version.

  The replacement DCP includes a CPL that associates a picture track file, a sound track file, and / or a subtitle track file corresponding to the replacement version, and the picture track file, the sound track file, and the subtitle track. The file may not be included.

  The digital cinema creating apparatus for creating the divided DCP may further include a receiving unit that receives the replacement divided DCP via a wireless or wired network.

  In order to solve the above problem, according to another aspect of the present invention, there is provided a digital cinema playback method for playing back a digital cinema package (DCP) stored in a storage device. For each digital cinema, at least a CPL corresponding to one of the screening versions of a plurality of composition playlists (CPL) that associates one or more picture track files, sound track files, and / or subtitle track files with respect to the digital cinema. An ingest step of ingesting the divided DCP including the image into the storage device; after the ingestion of the divided DCP, the picture track file and the sound track file of the screening version corresponding to the CPL based on the CPL A reproduction step of reproducing the beauty / or the subtitle track file; characterized in that it comprises a digital cinema playback method is provided.

  In order to solve the above problems, according to another aspect of the present invention, a computer is a digital cinema playback device for playing back a digital cinema package (DCP) stored in a storage device. For each showing version, one or more picture playlist files, sound track files and / or subtitle track files related to the digital cinema are associated with any one showing version. An ingest unit that ingests a divided DCP including at least a CPL into the storage device; based on the CPL, a picture version file, the sound track file, and / or the sub-tight of a screening version corresponding to the CPL A reproducing unit for reproducing the track file; a program for functioning as a digital cinema playback device provided with is provided.

  As described above, according to the present invention, a digital cinema can be divided by an appropriate method, and the divided digital cinema can be easily operated, and can be extended to a screening version.

  Exemplary embodiments of the present invention will be described below in detail with reference to the accompanying drawings. In addition, in this specification and drawing, about the component which has the substantially same function structure, duplication description is abbreviate | omitted by attaching | subjecting the same code | symbol.

<1. System configuration>
First, a digital cinema system according to an embodiment of the present invention will be described with reference to FIG. FIG. 1 is a schematic configuration diagram showing a digital cinema system according to the present embodiment.

  As shown in FIG. 1, a digital cinema system according to the present embodiment includes a creation server 10 installed in a digital cinema production company, distribution company, distribution company, or the like, and a theater (movie theater, drive theater) that screens the digital cinema. Etc.).

  The creation server 10 according to the present embodiment is an example of a digital cinema creation device, and creates a DCP (Digital Cinema Package) that complies with the specifications defined by the DCI (Digital Cinema Initiative). More specifically, the creation server 10 acquires various content data that is a material of a digital cinema from a movie production company, for example. This content data is, for example, video data, audio data, caption data, and the like. The creation server 10 processes these content data (video processing, compression encoding, encryption, etc.) and is necessary for reproducing the encrypted DCP and the encrypted DCP for the digital cinema. Create key information. The DCP and key information created by the creation server 10 are distributed to each theater from a distribution company or distribution company.

  The screening device 20 is an example of a digital cinema processing device and a digital cinema playback device. The screening device 20 acquires the DCP and key information provided from the creation server 10, and ingests and stores the acquired DCP and key information in a storage device provided along with the screening device 20. This storage device is a large-capacity storage device capable of storing a digital cinema for screening, such as a hard disk drive (HDD). Furthermore, the screening device 20 decodes (decrypts) and decompresses content data such as video, audio and / or subtitles contained in the DCP stored in the storage device using the key information, and reproduces the content data. Will be screened.

  In such a digital cinema system, the encrypted DCP and the key information necessary for reproducing the encrypted DCP are generated from the production server 10 of the production company, distribution company, etc. to the theater screening device 20. Be distributed. That is, the creation server 10 provides DCP and key information to the screening device 20, and the screening device 20 acquires the DCP and key information. Examples of the distribution method between the creation server 10 and the screening device 20 include conveyance using a detachable recording medium 1 (removable medium) and distribution via the network 2.

  First, DCP distribution using the detachable recording medium 1 will be described. The detachable recording medium 1 is a recording medium that is detachable from the creation server 10 and the screening device 20, and has a capacity capable of storing the DCP of digital cinema and its key information. Examples of the removable recording medium 1 include a magnetic disk such as a hard disk, an optical disk such as a next-generation DVD, DVD-R, DVD-RW, DVD-RAM, and a magneto-optical disk, or various semiconductor memories. Any recording medium can be used. First, the creation server 10 stores the created DCP and key information in the removable recording medium 1. Next, the detachable recording medium 1 in which DCP or the like is stored is detached from the creation server 10, and then transported to the theater by an appropriate transport unit and mounted on the screening device 20. Thereafter, the screening device 20 reads the DCP and key information from the removable recording medium 1 and ingests them into a storage device (such as an HDD) included in the screening device 20.

  Next, DCP distribution using the network 2 will be described. The network 2 is a communication medium that connects the creation server 10 and the screening device 20 so that they can communicate with each other. The network 2 is not limited to a wired or wireless network. For example, a public line network such as the Internet, a telephone line network, a satellite communication network, various local area networks (LANs) including an Ethernet (registered trademark), and a WAN (Wide Area). A dedicated line network such as Network (Network) or IP-VPN (Internet Protocol-Virtual Private Network) can be used. By transferring the DCP and key information created by the creation server 10 to the screening device 20 via the network 2, the DCP and key information can be quickly provided from the creation server 10 to the screening device 20. Thereafter, the screening device 20 ingests and stores the DCP and key information received from the creation server 10 in a storage device (such as an HDD) included in the screening device 20.

  When DCP is distributed from the creation server 10 to the screening device 20, only DCP related to one digital cinema may be distributed, or DCPs related to a plurality of digital cinemas may be distributed collectively. Further, as in the related art, not only a complete DCP (undivided DCP) related to a certain digital cinema but also a plurality of divided DCPs obtained by dividing the DCP related to the certain digital cinema may be distributed. In this case, all the divided DCPs related to a certain digital cinema may be distributed simultaneously, or only a part of the divided DCs may be distributed.

  In the present embodiment, the creation server 10 divides a DCP related to a single digital cinema into a plurality of divided DCPs (also referred to as “Volume”) in an appropriate data format, and the divided DCPs are displayed from the creation server 10 to a screening device. 20 is provided. The advantages of dividing the DCP in this way are as follows.

  Since digital cinema content generally has a large amount of data, considering the capacity of the removable recording medium 1 and the communication capability of the network 2, the digital cinema content is divided into a plurality of division units, that is, divided DCP (Volume). It is preferable to divide and distribute. This makes it easy to handle the DCP during distribution, and has the advantage that the DCP can be distributed easily and quickly.

  In addition, a plurality of screening versions may be set for one digital cinema depending on the intention of the movie producer or the screening region. For example, when a digital cinema is opened to a plurality of countries, a plurality of language versions (English version, Japanese version, French version, etc.) are created for one digital cinema. In addition, depending on the regulations or religion of the country where digital cinema will be screened, contractual relationships (advertising, copyright, etc.) between companies, market needs, etc., a part of the original version of a digital cinema has been changed, modified, A remade replacement version may be created. When multiple screening versions are created in this way, first a certain screening version (for example, English version, original version) is distributed, and then another screening version (for example, Japanese version, replacement version) is distributed. Cases are also envisaged. In this case, if only the content data corresponding to the difference between the two screening versions is distributed without distributing the overlapping content data in the two screening versions, the distributed DCP The amount of data is small, and handling of DCP becomes easy.

  As described above, the division of the DCP is performed by the digital cinema production company or distribution company that is the distribution source, and is not limited to the case where the DCP is stored in the physical recording medium 1 and transported. When transferring the DCP, it is beneficial to divide the DCP using an appropriate division method. In consideration of the circumstances as described above, in the digital cinema system according to the present embodiment, a plurality of divided DCPs obtained by dividing a DCP related to one digital cinema are distributed from the creation server 10 to the screening device 20. The obtained divided DCP is integrated and ingested for each identical digital cinema. Furthermore, in this embodiment, the DCP division unit is a digital cinema screening version unit, and a plurality of divided DCPs are created for each screening version. As a result, the screening device 20 can reproduce the screening version corresponding to the acquired divided DCP without acquiring all the divided DCPs related to the digital cinema. Hereinafter, a detailed configuration of a digital system for realizing such characteristics will be described.

<2. DCP configuration>
First, a general DCP file structure will be described with reference to FIG. FIG. 2 is an explanatory diagram showing a general DCP file structure.

  Digital cinema content is distributed in a data format called DCP that conforms to the specifications proposed by DCI. This DCP is a set of various data files necessary for the screening of a digital cinema. As shown in FIG. 2, for example, the DCP includes an asset map (hereinafter referred to as “AM”), a volume index (hereinafter also referred to as “VI”), a packing list (hereinafter referred to as “VI”). PL "), composition play list (hereinafter also referred to as" CPL "), picture track file (hereinafter also referred to as" video file "), sound track file (Sound Track file). : Subtitle track file (hereinafter also referred to as “subtitle file”), subtitle PNG file (Subtitle PNG file: hereinafter also referred to as “PNG file”), and the like. Including. Each of these files is given globally unique identification information, for example, UUID (Universal Unique Identifier), and the UUID of each file is described in each file. Below, each file which comprises DCP is each demonstrated.

・ Asset Map (AM)
In the asset map, a list of all files (excluding the asset map itself) included in one DCP is described. Specifically, the asset map includes a list in which the UUID described in each file in the DCP is associated with the file name (Path) of the file. The asset map can be used by the user to confirm each file included in the DCP. Further, this asset map describes the UUID assigned to the asset map. Such an asset map is created in units of digital cinema, and when a DCP is divided as will be described later, only one asset map common to a plurality of divided DCPs is created for one digital cinema. Therefore, the screening device 20 can determine the digital cinema to which the divided DCP including the asset map belongs by confirming identification information unique to the asset map described in the asset map in the divided DCP, for example, UUID. . Since the PNG file for Subtitle, which will be described later, has a format in which UUID cannot be described, each PNG file and UUID are described by associating the file name of each PNG file with its UUID in the asset map. Can be matched.

・ Volume Index (VI)
In VI, index information (hereinafter referred to as “division index information”) for identifying each division unit when the DCP is divided into a plurality of division units (division DCP) is described. As the division index information, for example, serial numbers (for example, 1, 2, 3,...) Described in a markup language such as XML (Extensible Markup Language) can be used. For example, when a DCP of a certain digital cinema is divided into two, “1” is described as division index information in the VI of the first division DCP, and division index information is included in the VI of the second division DCP. “2” is described. Further, when the DCP is not divided, “1” is described as division index information in VI.

・ Packing List (PL)
The PL describes a list in which UUIDs and hash values of all files (excluding PL itself) included in one DCP are associated with each other. The hash value is a value obtained by hash calculation of the data of each file in the DCP (for example, a 160-bit data string). By comparing the hash value of each file described in this PL with the actually obtained hash value of each file and checking the degree of coincidence, the integrity of each file (such as whether there is data corruption, etc.) ) Can be verified.

・ Composition Play List (CPL)
The CPL is a playlist used for reproducing content (video, audio, subtitles) included in the DCP. The CPL is link information that correlates a picture track file corresponding to each screening version of the digital cinema and a sound track file (and / or a subtitle track file). Such CPL is created for each screening version of one digital cinema.

More specifically, the CPL includes a picture track file (MXF file) that is a video file, a sound track file (MXF file) that is an audio file, and / or a subtitle track file that is a subtitle file (in the case of MXF or XML format). In this case, the UUID of each file, the start point (entry point) of the data of each file, and the length of the scale are collectively described for all reels. Here, the reel is a unit obtained by subdividing temporally a single screening unit that combines video and audio (subtitles as necessary). For example, when one digital cinema (120 minutes) is equally divided into 10 temporally, 10 reels (12 minute units) are created. Also, start position (entry
point) is an offset indicating the start position of the video or audio file data of each reel. The length of the scale is size information representing an effective data range from the start position.

  When one digital cinema is composed of a plurality of reels, the CPL describes all of the reel information (video, audio, subtitle file UUID, start position and scale length). All these reels become one screening unit. Normally, since a digital cinema is composed of a plurality of reels, reel information about all these reels is described together in one CPL.

The screening version means one screening unit of a digital cinema, such as a language version (English audio version, Japanese audio version, Japanese subtitle version, etc.). The CPL according to the present embodiment is created for each screening version of one digital cinema. For example, when there are an English version and a Japanese version for one digital cinema, for example, the following three CPLs are created.
(1) English audio version of CPL (CPL associating English video files with English audio files)
(2) Japanese audio version of CPL (CPL that associates English video files with Japanese audio files)
(3) Japanese subtitle version of CPL (CPL that links English video files, English audio files, and Japanese subtitle files)
By arbitrarily changing the association of video, audio, and subtitle files by CPL, one movie can be shown in various screening versions.

・ Picture Track file (Picture file)
The picture track file is a video data file compressed in a predetermined format, and is composed of, for example, an MXF file. There are as many picture track files as necessary reels. It is also possible to create a plurality of types of video files (for example, original version video and replacement version video) for the same scene.

・ Sound Track file (Sound Track file)
The sound track file is a file of audio data compressed in a predetermined format, and is composed of, for example, an MXF file. There are as many soundtrack files as necessary. It is also possible to create a plurality of types of audio files (for example, an original version and a replacement version) for the same scene.

・ Subtitle Track File (Subtitle Track File)
The subtitle track file is a file in which the subtitle display timing is described, and is composed of, for example, an XML file or an MXF file. There are as many subtitle track files as necessary reels. It is also possible to create a plurality of types of subtitle files (for example, original version subtitles and replacement version subtitles) for the same scene. In this subtitle track file, the subtitle data representing the subtitle content and its font data may be described as text data by XML or the like, or the subtitle data may be a separate file. When PNG (Portable Network Graphics) data is used as subtitle data of another file, link information (for example, the file name of the PNG file) to each PNG file (subtitle PNG file) is included in the subtitle track file. Is described in XML or the like.

・ PNG file for subtitle (PNG file for Subtitle)
The subtitle PNG file is a PNG data file representing subtitle content. When the above subtitle track file is described in XML and when subtitle PNG data is used, this PNG file is required by the number of subtitles.

  Here, when there is no video or audio in the digital cinema, there is no picture track file or subtitle track file in the DCP, and when there is no subtitle in the digital cinema, the subtitle track file and subtitle PNG in the DCP. The file will not exist. In addition, even when there is a caption, if subtitle PNG data is not required, a subtitle track file in which caption text data and its display timing are described is necessary, but a subtitle PNG file is not necessary. The DCP can include any necessary files in addition to the files described above.

  The picture track file, the sound track file, and the subtitle track file (and the subtitle PNG file) are content data representing the contents of the digital cinema. Hereinafter, these picture track file, sound track file, and / or subtitle track file (subtitle PNG file) are collectively referred to as a “content file”. In the following description, unless otherwise specified, a subtitle track file (caption file) includes a subtitle PNG file subordinate thereto.

  Next, referring to FIG. 3, a general example of changing the DCP will be described. As shown in FIG. 3, even if the asset map (AM) and the volume index (VI) are not included in the DCP, the screening device 20 can ingest the DCP and reproduce the digital cinema. However, in this case, since there is no VI, the DCP cannot be divided into a plurality of divided DCPs. On the other hand, the asset map (AM) and the volume index (VI) are always included in the divided DCP (Volume) according to the present embodiment.

<3. Configuration of divided DCP>
Here, the configuration of the divided DCP according to the present embodiment will be described with reference to FIG. FIG. 4 is an explanatory diagram showing the file structure of the divided DCP according to the present embodiment.

  As shown in FIG. 4, a DCP (parent DCP) corresponding to one digital cinema is divided into a plurality of divided DCPs (divided DCP1, divided DCP2,...). A plurality of picture track files (video files), sound track files (audio files), and subtitle track files (subtitle files) relating to the one digital cinema are allocated without duplication. In the example of FIG. 4, each of the divided DCPs 1 and 2 includes all of the asset map, VI, PL, CPL, video file, audio file, and subtitle file, as in the general DCP described in FIG. It is out. However, the present invention is not limited to the example of FIG. 4, and among the above-mentioned files, the files that each divided DCP should include at least are asset maps, VIs, and CPLs. For other PL and content files, any divided DCP is used. You may sort it into. That is, the divided DCP does not necessarily include a PL and a content file such as a video file. Below, the structure of the asset map, VI, and CPL included in the divided DCP and the significance thereof will be described.

  First, an asset map in the divided DCP will be described. Only one common asset map is created for a plurality of divided DCPs related to one digital cinema, and this common asset map is included in each divided DCP. That is, the asset map does not differ for each divided DCP related to the same digital cinema. Thereby, the common asset map becomes identification information indicating the digital cinema corresponding to the divided DCP including the asset map (that is, the digital cinema that is the division source of the divided DCP).

  Specifically, the common asset map is included in a plurality of divided DCPs related to the same digital cinema. In this common asset map, the same UUID is described, and information on all files included in all divided DCPs related to the digital cinema is described. That is, when the DCP is divided into n, the asset maps in each of the divided DCPs 1 to n describe information (file names and UUIDs) related to all the files in all the divided DCPs 1 to n. The same UUID assigned to is described. A plurality of divided DCPs obtained by dividing the same DCP includes the same asset map. Therefore, by extracting and checking asset map information (for example, UUID, hash value, etc.) that is unique to the asset map from the asset map in the divided DCP, the digital cinema to which each divided DCP belongs (ie, The parent DCP of the division source can be determined. As a result, the screening device 20 can classify the divided DCP acquired from the creation server 10 for each digital cinema (that is, for each asset map information) and ingest it into a directory corresponding to each digital cinema.

  The asset map file describes division number information indicating the total number of divided DCPs created for one digital cinema. For example, when one digital cinema is divided into ten, “10” is described as the division number information in the asset map. Thereby, the screening apparatus 20 that has obtained the divided DCP can determine the number of divisions of the digital cinema that is the division source of the divided DCP based on the division number information described in the asset map.

  In addition, in the asset map, it is possible to describe in which divided DCP each file relating to the division source digital cinema is included. In other words, the file name and UUID of each file related to the same digital cinema are described in the asset map. The file name and UUID, together with the division index information (for example, serial number) of the divided DCP in which each file is included. May be described. For example, when a certain video file 1 is allocated to the second divided DCP 2, the asset map includes a file name and UUID of the video file 1 and a serial number “2” that is division index information of the divided DCP 2. Are described in association with each other. Thereby, the screening apparatus 20 that has obtained the divided DCP can determine which divided DCP each file is included by referring to the asset map in the divided DCP. However, the division index information for each file need not be described in the asset map.

  Next, the volume index (VI) in the divided DCP will be described. As described above, the VI describes the division index information (for example, serial number) of the division DCP including the VI. This VI can be used to distinguish a plurality of divided DCPs corresponding to the same digital cinema from each other. When the DCP is divided into a plurality of divided DCPs, division index information representing the divided DCP is described in VI in each divided DCP. For example, the serial number “1” is described as the division index information in VI1 of the first divided DCP1 shown in FIG. 4, and the serial number “2” is described as the division index information in VI2 of the second divided DCP2. Is done. While the above asset map is the same for a plurality of divided DCPs, VI is described with different divided index information for each divided DCP. By including the VI in the divided DCP, the screening apparatus 20 that has acquired the divided DCP can determine what number of the divided DCP the acquired divided DCP is, and also determines whether or not the divided DCP has already been ingested. become able to. Note that VI is not necessary when DCP division is not performed.

  Next, the composition playlist (CPL) in the divided DCP will be described. As described above, the DCP division unit in this embodiment is a screening version unit, and a CPL is created for each screening version. That is, the CPL has a 1: 1 correspondence with the screening version of the digital cinema, and correlates content files (video, audio, and subtitle files) of the screening version. For example, the first divided DCP1 shown in FIG. 4 includes CPL1 corresponding to the first screening version, and this CPL1 associates the video file, audio file, and subtitle file of the first screening version. . As described above, in this embodiment, the division unit of the digital cinema is a screening version unit, that is, a CPL corresponding to the screening version and a content file unit correlated with each other by the CPL.

  Accordingly, the screening device 20 that has acquired the divided DCP can reproduce the content file in the divided DCP based on the CPL in the divided DCP. For this reason, the screening device 20 can be reproduced simply by ingesting the necessary divided DCP. Therefore, even if not all the divided DCPs related to a certain digital cinema are acquired, at the stage of acquiring at least one divided DCP, the screening version corresponding to the divided DCP can be reproduced. Therefore, the screening device 20 is useful because it can reproduce a digital cinema in divided units. In the example of FIG. 4, each of the divided DCPs 1 and 2 includes a content file associated by CPL 1 and 2. However, the present invention is not limited to this example, and the divided DCP includes content as long as at least one CPL is included. The file may not be included.

  Further, as shown in FIG. 4, by including a packing list (PL) in all the divided DCPs, the screening device 20 uses the hash values described in the PLs in the divided DCPs to use each hash value in the divided DCPs. It is effective because the integrity of the file can be verified. For example, the screening device 20 calculates the hash value of the video file actually included in the divided DCP, the hash value of the video track file described in the PL included in the divided DCP, and the calculated hash value. Can be checked whether the data of the video file is damaged. Since PL is text data and has a very small data size, there is no problem even if it is added in the divided DCP.

  The file structure of the divided DCP according to the present embodiment has been described above. Conventionally, in DCI, a DCP is defined as a data format that can be divided, but how to allocate a plurality of files included in one digital cinema DCP (parent DCP) to each divided DCP, that is, DCP No proper format was proposed for the division criteria and division units. On the other hand, in the present embodiment, each file (content file, etc.) included in one DCP of a digital cinema is not almost equally allocated to each divided DCP, but as described above, CPL is performed in units of screening versions. The method of creating divided DCPs and allocating content files to each divided DCP for each screening version is adopted.

<4. Specific example of divided DCP>
Next, a specific example of the divided DCP created for each screening version according to the present embodiment will be described. FIG. 5 is an explanatory view showing the file structure of the divided DCP created for each language version, and FIG. 6 is an explanatory view showing the file structure of the divided DCP corresponding to the original version and the replacement version. Note that the files (PL, PNG) indicated by the wavy lines in FIGS. 5 and 6 are files that do not necessarily need to be included in the divided DCP.

  FIG. 5 shows an example of a division method in which a language version is used as a screening version, and one digital cinema can be expanded to various language versions. In the example of FIG. 5, a plurality of divided DCPs 1, 2, 3,... Are created for each language version for one digital cinema. That is, the DCP of one digital cinema is divided into an English version (first language version) divided DCP1 (Volume 1) and a non-English language version (second language version) divided DCP2, 3,... (Volume2, 3,... Generally, when a digital cinema is created in an English-speaking country such as the United States, the sound of the original digital cinema is in English. When this digital cinema is to be released in other countries, another language version of the digital cinema is created by replacing the original language English sound with another language sound or adding other language subtitles. .

  In the example of FIG. 5, for example, a divided DCP2 for the Japanese version and a divided DCP3 for the French version are illustrated as divided DCPs for languages other than English, but other than that, German, Spanish, Chinese A divided DCP corresponding to various languages such as Korean can be created. In the following, the divided DCP1 for the English version and the divided DCP2 for the Japanese version will be mainly described, but the same applies to the divided DCPs for other languages.

  The English version of the divided DCP1 (first language version of the divided DCP) is an original video version (picture) and sound file (Sound) of the English version of the digital cinema, and an English version of the CPL1 (first language version of the divided DCP). CPL), asset map, PL, and VI1 in which divided version information (serial number “1”) of divided DCP1 is described. Among them, the English version CPL1 associates an English video file and an English audio file included in the English divided DCP1. By using such an English version of CPL1, an English version (English video and audio) of a digital cinema can be reproduced.

  The English version of the divided DCP1 corresponds to the original version of the divided DCP including the original digital cinema content file (ie, English video and audio files), and is duplicated by a plurality of CPLs 1, 2, 3,. This corresponds to a main divided DCP including a content file (that is, an English video file) associated therewith.

  On the other hand, the Japanese version of the divided DCP2 (second language version of the divided DCP) is a replacement version of the digital cinema, a Japanese audio file (Sound) and a subtitle file (Subtitle), and a Japanese audio version of the CPL2 (Second language audio version CPL), Japanese subtitle version CPL3 (second language subtitle version CPL), asset map, PL, and split version information of split DCP2 (serial number "2") VI2 in which is described. Among them, the Japanese audio version CPL2 associates an English video file included in the English divided DCP1 with a Japanese audio file included in the Japanese divided DCP2. The Japanese subtitle version CPL3 associates the English video file and English audio file included in the English divided DCP1 with the Japanese subtitle file included in the Japanese divided DCP2. By using such Japanese versions of CPL2 and 3, it is possible to reproduce the Japanese version of the digital cinema (English video and Japanese audio or subtitles).

  The Japanese version of the divided DCP2 corresponds to a replacement version of the divided DCP including a digital cinema replacement version content file (ie, Japanese audio and subtitle file), and is independently associated by CPL2 or CPL3. This also corresponds to a sub-divided DCP including content files (Japanese audio and subtitle files).

  Also, the asset map and PL included in the English version of the divided DCP1 are the same as the asset map and PL included in the Japanese version of the divided DCP2. In this asset map and PL, information on files included in all divided DCPs 1, 2, 3,... Relating to the same digital cinema is described. Further, by virtue of VI1 and VI2 included in the divided DCPs 1 and 2, it is possible to identify which division unit the divided DCPs 1 and 2 are.

  As described above, in the example of FIG. 5, the digital cinema language version is divided into a plurality of divided DCPs. Each of the divided DCPs 1 and 2 is assigned CPL1 or CPL2 and 3 corresponding to each language version and a content file of the language version. Since the English video file is a content file that is commonly used in all language versions, it is included only in the original English version of the divided DCP1 (main divided DCP), and other language versions of Japan. It is not included in the word version divided DCP2 (sub-divided DCP). That is, the Japanese version of the divided DCP2 includes a Japanese audio file and a subtitle file as content files corresponding to the difference between the English version and the Japanese version, and does not include an English video file. .

  As described above, in the present embodiment, only the original divided DCP (English divided DCP1) includes content files (English video files) that are redundantly associated by a plurality of CPLs 1, 2, 3,. In addition, the replacement divided DCP (Japanese divided DCP2 or the like) includes only content files (Japanese audio and subtitle files) corresponding to the difference between the replacement version and the original version. As a result, the data amount of the content file included in the replacement divided DCP can be minimized. Therefore, since the total data amount of the plurality of divided DCPs can be suppressed, when distributing all the language versions of the digital cinema from the creation server 10 to the screening device 20, the divided DCPs can be distributed efficiently and can be detached. The capacity of the recording medium 1 and the load on the network 2 can be reduced. In addition, if the Japanese version of the divided DCP2 is distributed after the distribution of the English version of the divided DCP1, the screening apparatus 20 performs the English video file in the divided DCP1 and the divided DCP2 based on the CPL2 and 3 in the divided DCP2. Can play Japanese audio or subtitle files. Therefore, by adding the Japanese version of the divided DCP2 to the screening apparatus 20 that has acquired the English version of the divided DCP1, the screening apparatus 20 can display not only the English version but also the Japanese version of the digital cinema. become. Such extensibility of language versions can be applied not only to Japanese but also to other languages.

  Conventionally, it is necessary to create a DCP for each language version, or to include all language content files in one DCP, and to operate the entire CPL that associates multilingual content files. However, in the present embodiment, as described above, by creating a plurality of divided DCPs for each language version, there is an advantage that only a divided DCP of a necessary language version needs to be extracted and used from among the plurality of divided DCPs. is there. In addition, measures such as adding a language that can be handled afterwards become easy.

  In the example of FIG. 5, the divided DCP2 of the Japanese version corresponds to both the Japanese voice version and the Japanese subtitle version, but is not limited to this example, and the Japanese voice version CPL2 or One of the Japanese subtitle versions of CPL3 and either an audio file or a subtitle file may be included. At this time, the divided DCP for the Japanese audio version and the divided DCP for the Japanese subtitle version may be configured separately. In addition, Japanese content files (audio and subtitle files) are included in the English version of the divided DCP1 instead of the Japanese version of the divided DCP2, and the Japanese version of the divided DCP2 includes an asset map, VI, Only the Japanese version of CPL2 or CPL3 may be included. Even in this case, based on the CPL2 or CPL3 in the divided DCP2, the English video file and the Japanese audio file or subtitle file in the divided DCP1 can be reproduced to show the Japanese version of the digital cinema. Also, if the Japanese version of CPL2 includes not only the Japanese version of the audio and subtitle files but also the English video file, the English version of the split DCP1 and the Japanese version of CPL2 will contain duplicate video files. However, such operation is also possible. The allocation of the content file to each divided DCP can be variously set according to the intention of the movie distributor.

  Next, an example of the division method in FIG. 6 will be described. FIG. 6 is an example of a division method in which a scene corresponding to each screening location can be produced by replacing a part of the reels constituting one digital cinema. For example, some scenes of an original version of a digital cinema will be deleted or changed according to the regulations or religion of the country where the movie will be shown, the contractual relationship between the companies (advertising, copyright, etc.), market needs, etc. A replacement version may be created. In such a case, the division method of FIG. 6 is useful because a part of the scene can be replaced.

  In the example of FIG. 6, one original divided DCP1 and a plurality of replacement divided DCPs 2, 3,... Are created for one digital cinema. The original divided DCP1 is a content file (for example, a video file and an audio file) corresponding to the original version of the digital cinema, the original version CPL1, which associates the original content file, the asset map, the PL, and the divided DCP1. And VI1 in which the divided version information (serial number “1”) is described.

  On the other hand, the divided DCP2 of the replacement version associates a content file corresponding to the difference between the original version of the digital cinema and the replacement version (for example, a video file, an audio file, and a subtitle file) and a content file corresponding to the replacement version. The replacement version includes CPL2, an asset map, PL, and VI1 in which divided version information (serial number “2”) of divided DCP2 is described. Thus, the replacement divided DCP2 includes a content file corresponding to the difference between the original version and the replacement version as a replacement scene content file, and includes a content file of a scene that has not been replaced. Not. Thus, the replacement divided DCP2 only needs to include the minimum necessary content file corresponding to the difference, and thus the data amount of the replacement divided DCP2 can be reduced.

  The replacement version CPL2 associates the content file corresponding to the difference included in the replacement DCP2 with respect to the replacement scene in the digital cinema, while the original scene is not replaced. The original version content file included in the divided DCP1 of the version is associated. As a result, the digital cinema replacement version can be reproduced simply by adding the replacement version DCP2 to the screening device 20 having the original version split DCP1.

  Here, a specific example of scene replacement in digital cinema will be described with reference to FIG. As shown in FIG. 7A, for example, an original version of one digital cinema is composed of ten reels 1 to 10, the original version reel 3 includes a violent scene, and the reel 8 is hard. Consider a case where a love scene is included and the scenes of the reels 3 and 8 may conflict with the regulations of each country. In this case, it is possible to create the replacement version 1 in which the reels 3 and 8 including the problematic scene of the original version are deleted. Alternatively, the replacement version 2 can be created in which the reel 3 is replaced with a non-violent scene reel 3 'and the reel 8 is replaced with a soft love scene reel 8'.

  An example of creating divided DCPs corresponding to the original version, the replacement version 1 and the replacement version 2 as shown in FIG. 6 will be described. The original divided DCP1 includes the original CPL1 and the content files (video files, audio files, etc.) of all reels 1 to 10 of the original. Among these, the original version CPL1 associates the content files of the original version in the divided DCP1 with respect to each of the ten reels 1 to 10.

  The divided DCP 2 of the replacement version 1 includes the CPL 2 of the replacement version 1. The CPL 2 of the replacement version 1 associates the original version content file with respect to the reels 1, 2, 4 to 7, 9, 10 excluding the reels 3, 8. By using the divided DCP 2 including the CPL 2 of the replacement version 1, the screening device 20 can reproduce the replacement version 1 in which the problematic reels 3 and 8 are deleted from the reels 1 to 10 of the original version. In this way, in order to delete a part of the original version scene, after distributing the original divided DCP1, CPL2 that associates the content files of the remaining reels excluding the problematic reel 3 and reel 8 is created. The divided DCP2 of the replacement version 1 including this CPL2 may be distributed. Further, this divided DCP2 includes the CPL2 of the replacement version 1, but does not include the content file, so that the data amount is very small.

  The divided DCP 3 of the replacement version 2 includes the CPL 3 of the replacement version 2 and the contents of the replaced scenes 3 ′ and 8 ′. The CPL 3 of the replacement version 2 associates the original content file with the reels 1, 2, 4 to 7, 9, and 10 and associates the replacement content file with the reels 3 ′ and 8 ′. By using the divided DCP3 including the CPL3 of the replacement version 2, the screening apparatus 20 converts the problematic reels 3 and 8 into the problematic reels 3 ′ and 8 ′ among the reels 1 to 10 of the original version. The changed replacement version 2 can be reproduced. Thus, in order to replace a part of the scene of the original version after the distribution of the divided DCP1 of the original version, the content files of the reel 3 ′ and the reel 8 ′ after the replacement are created, The CPL 3 of the replacement version 2 that associates the content files of the reels 3 ′ and 8 ′ with the original version content files of the other reels 1, 2, 4 to 7, 9, and 10 included in the original DC DC1 The divided DCP3 of the replacement version 2 including the created content and the CPL3 may be distributed.

  Next, the example of FIG. 7B will be described. As shown in FIG. 7B, the divided DCP can be used for advertisement by changing some of the reels of the original version. For example, consider a case where the original reel 2 includes an advertising billboard scene of company A and the reel 9 includes a scene where a car of company C appears. In this case, a replacement version is created in which the reel 2 is replaced with a reel 2 'including an advertising signboard scene of Company B, and the reel 9 is replaced with a reel 9' including a scene where a car of Company D appears. it can. That is, a movie production company or a distribution company can replace scenes that can serve as corporate advertisements for each movie screening time and location according to a company contract.

  When the divided DCP is used for the advertisement, the original divided DCP1 including the original content file and the original CPL1, and the content file corresponding to the difference between the original version and the replacement version, as described above, A replacement divided DCP2 including the replacement CPL2 may be created. The original version CPL1 associates the content files of the original version reels 1-10. The replacement version CPL2 associates the content files of the original reels 1, 3-8, and 10 with the content files of the replacement reels 2 'and 9'. By creating a replacement divided DCP in this way, it is possible to suitably execute the replacement of the advertisement scene according to the screening time or the screening location as described above.

  As described above with reference to FIG. 7, by using the divided DCP according to the present embodiment, the original version of the digital cinema scene is subdivided in advance, and only necessary scenes are replaced with other scenes. It can be used. Therefore, localization of digital cinema, replacement of advertisements, etc. can be easily realized. In addition, the replacement divided DCP does not include a content file, or even if it is included, it is a content file corresponding to a difference from the original version, so the data amount of the replacement divided DCP is small. Therefore, when distributing the replacement divided DCP (see FIG. 1), the capacity of the detachable recording medium 1 can be suppressed, and distribution through the network 2 is sufficiently possible.

  The configuration of the creation server 10 and the screening device 20 for realizing the distribution and screening of a digital cinema using the above-described divided DCP will be described below.

<5. Configuration of Creation Server 10 (Digital Cinema Creation Device)>
First, the hardware configuration of the creation server 10 according to the present embodiment will be described with reference to FIG. FIG. 8 is a configuration diagram showing the creation server 10 according to the present embodiment.

  As shown in FIG. 8, the creation server 10 includes, for example, a CPU (Central Processing Unit) 101, a main storage device 102, an input device 103, an output device 104, a magnetic storage device 105, and a video encoding device 106. A voice encoding device 107, a drive 108, a communication device 109, and a local bus 110 for connecting these devices to each other.

  The CPU 101 functions as an arithmetic processing device and a control device, and controls each device in the creation server 10. The CPU 101 executes various processes according to a program stored in the main storage device 102 or a program loaded from the magnetic storage device 105 to the main storage device 102. The main storage device 102 is composed of various memories such as a ROM (Read Only Memory) and a RAM (Random Access Memory), and stores programs used by the CPU 101, parameters that change as appropriate in the execution thereof, and the like. The main storage device 102 also functions as a buffer for reducing access from the CPU 101 to the magnetic storage device 105.

  The input device 103 includes, for example, an input unit such as a mouse, a keyboard, a touch panel, a button, a switch, and a lever, and an input control circuit that generates an input signal according to a user operation on the input unit and outputs the input signal to the CPU 101. . By operating the input device 103, the user can input various data to the creation server 10 and instruct processing operations. The output device 104 includes, for example, a display device such as a CRT (Cathode Ray Tube) display device or a liquid crystal display (LCD) device, and an audio output device such as a speaker. The output device 104 displays, for example, various types of information such as video of the reproduced content as text or images, and outputs audio of the reproduced content as audio.

  The magnetic storage device 105 is an example of a data storage device, and includes, for example, an HDD that uses a hard disk as a storage medium. The magnetic storage device 105 stores various data such as a program executed by the CPU 101, digital cinema content, DCP, log, and configuration information.

  The video encoding device 106 compresses (encodes) video data, which is video material of a digital cinema, using a predetermined compression encoding method (for example, JPEG2000: Joint Photographic Experts Group 2000) to generate compressed video data in a predetermined format. Is generated. In addition, the audio encoding device 107 compresses (encodes) audio data of an audio material that is a digital cinema in a predetermined compression encoding format (for example, WAV), and generates compressed audio data of a predetermined format. The video encoding device 106 and the audio encoding device 107 can also encrypt (encrypt) the video data and the audio data by using the key information.

  The drive 108 is loaded with a detachable recording medium 1, and writes / reads various data such as digital cinema material content, DCP, and configuration information on the recording medium 1. Specifically, the drive 108 reads out data recorded on the removable recording medium 1 and supplies it to the main storage device 102 connected via the local bus 110. The CPU 101 stores these data in the magnetic storage device 105 or the like as necessary. On the other hand, the drive 108 receives data stored in the main storage device 102 or the magnetic storage device 105, newly generated data, or data acquired from an external device from the CPU 101 and writes it to the removable recording medium 1. . Using such a drive 108, the divided DCP created by the creation server 10 can be written to the removable recording medium 1, and the divided DCP stored in the removable recording medium 1 can be read.

  The communication device 109 is a communication interface configured with, for example, a communication device for connecting the creation server 10 to the network 2. The communication device 109 transmits / receives various data such as divided DCPs to / from an external device such as the screening device 20 via the network 2.

  Next, the functional configuration of the creation server 10 according to the present embodiment will be described with reference to FIG. FIG. 9 is a functional configuration diagram illustrating the creation server 10 according to the present embodiment.

  As shown in FIG. 9, the creation server 10 includes a material acquisition unit 120, a video processing unit 122, an encoding unit 124, a content storage unit 130, a content file creation unit 122, a management file creation unit 140, a management A file storage unit 150, a DCP creation unit 160, and a DCP provision unit 170 are provided.

  The material acquisition unit 120 acquires video data, audio data, caption data, and the like, which are digital cinema material. This material data is, for example, data recorded by a movie production company or the like, or data created by computer graphic (CG) technology. This material data is delivered, for example, from a movie production company or the like to a movie distribution company using a removable recording medium 1 such as an HD video tape, HDD, or film. The material acquisition unit 120 acquires material data by reading material data from the detachable recording medium 1 attached to the creation server 10 or by receiving material data via the network 2.

  The video processing unit 122 performs predetermined video processing on the video material data acquired by the material acquisition unit 120. This video processing is, for example, conversion to a 12-bit XYZ color space using a three-dimensional color space coordinate conversion engine, file format conversion, and the like. Note that predetermined sound processing may be performed on the sound material data by a sound processing unit (not shown).

  The encoding unit 124 includes the video encoding device 106 and the audio encoding device 107 described above. The encoding unit 124 converts the video material data after the video processing by the video processing unit 122 and the audio material data acquired by the material acquisition unit 120 into a predetermined compression encoding method (JPEG2000 for video, WAV for audio). Etc.). The encoding unit 124 encrypts the compressed video data and audio data, and generates key information for releasing the encryption.

  The content storage unit 130 includes the magnetic storage device 102 described above, and stores digital cinema content files (video, audio, subtitles, etc.). The content storage unit 130 stores the video data, audio data, subtitle data, and content file (MXF file) created by the content file creation unit 122 compressed and encoded by the encoding unit 124.

  The content file creation unit 122 processes the compression-encoded video, audio data, and subtitle data, and for each digital cinema reel, the above picture track file (video file), sound track file (audio file), and // Create a subtitle track file (subtitle file).

  Specifically, the content file creation unit 122 wraps the video and audio data after the compression encoding for each reel, and creates a picture track file (MXF file) and a sound track file (MXF file) for each reel. To do. That is, in the case of video data, each video is a separate file, so these files are grouped in reel units to create one MXF file. This operation is called “wrap”. Also, since there is a WAV file for each channel of audio data, one MXF file is created by collecting these files in units of reels. In addition, when there is subtitle data, the content file creation unit 122 wraps the subtitle data by a predetermined method (a method such as XML or MXF defined by SMPTE) to create a subtitle track file. Good. The video file, audio file, and subtitle file created as described above are stored in the content storage unit 130.

  The management file creation unit 140 creates a management file for managing content files in the DCP. The management file creation unit 140 includes, for example, a CPL creation unit 142 that creates a composition playlist (CPL), an asset map creation unit 144 that creates an asset map, and a PL creation unit 146 that creates a packing list (PL). And a VI creation unit 148 that creates a volume index (VI).

  The CPL creation unit 142 creates a plurality of CPLs for each screening version of one digital cinema. Each CPL associates a content file (a picture track file, a sound track file and / or a subtitle track file) corresponding to each screening version for each reel. When a DCP of one digital cinema is divided into a plurality of divided DCPs for each screening version, the CPL creation unit 142 creates a CPL corresponding to each screening version, and each divided DCP includes at least one divided DCP. To be. For example, when a divided DCP is created for each language version as shown in FIG. 5, the CPL creation unit 142 creates an English version of CPL1, a Japanese speech version of CPL2, a Japanese subtitle version of CPL3, and the like. Also, as shown in FIG. 6, when creating a divided DCP of an original version and a replacement version, the CPL creation unit 142 creates an original version CPL1 and a replacement version CPL2.

  Further, when creating a plurality of divided DCPs, the asset map creating unit 144 creates one asset map that is included in common to the plurality of divided DCPs, and the PL creating unit 146 is commonly used for the plurality of divided DCPs. One included PL is created, and the VI creation unit 148 creates a plurality of VIs in which different division index information (for example, serial numbers) is described for each division DCP. Since the description contents of the asset map, PL, and VI at the time of this division have been described above, detailed description thereof will be omitted. The management file created by the management file creation unit 140 as described above, that is, the CPL, asset map, PL, and VI is stored in the management file storage unit 150.

  The DCP creation unit 160 creates one DCP or a plurality of divided DCPs for one digital cinema. At this time, the DCP creation unit 160 stores the content file (picture track file, sound track file and / or subtitle track file) stored in the content storage unit 130 and the management file storage unit 150 for the same digital cinema. A necessary file is read out from the management files (asset map, VI, PL, CPL), and the read file is packaged to create a DCP or a divided DCP.

  The DCP creation unit 160 creates a plurality of divided DCPs for each showing version of the digital cinema. As described above, each divided DCP includes at least one CPL corresponding to each screening version. For example, when creating a divided DCP for each language version as shown in FIG. 5, the DCP creation unit 160 includes an English divided DCP1 including an English version of CPL1, and Japanese including a Japanese version of CPL2 and CPL3. A divided DCP2 of the plate is created. Also, as shown in FIG. 6, when creating a divided DCP of the original version and the replacement version, the DCP creation unit 160 generates the divided DCP1 of the original version including the CPL1 of the original version and the CPL2 of the replacement version. A replacement DCP2 including a replacement version is created.

  In addition, when creating a replacement DCP, the DCP creation unit 160 determines whether the original version and the replacement version of the replacement version CPL and the content file associated by the replacement version CPL. The content file corresponding to the difference is included in the replacement divided DCP. Thus, the data amount of the replacement divided DCP can be minimized, and the replacement version of the digital cinema can be reproduced by adding the replacement divided DCP to the screening device 20. However, the present invention is not limited to this example, and it is sufficient that the replacement divided DCP includes at least the replacement CPL, and the replacement content file may be included in another divided DCP.

  Further, the DCP creation unit 160 may create a plurality of divided DCPs for a certain digital cinema at the same time, and allocate a plurality of content files and a plurality of CPLs related to the digital cinema to each divided DCP for each screening version. Alternatively, the DCP creation unit 160 may create a sub-divided DCP (corresponding to another screening version, if necessary) after creating a main divided DCP corresponding to the main screening version (for example, an English version or an original divided DCP). For example, a Japanese version or a replacement DCP) may be additionally created. At the time of this additional creation, if the content file corresponding to the difference between the main screening version and the other screening version is included in the sub-divided DCP, it is possible to prevent content files from overlapping between the plurality of divided DCPs. Furthermore, from the viewpoint of preventing duplication of content files, content files (for example, the English version video file in FIG. 5) that are associated with each other by a plurality of CPLs are included only in the main divided DCP and not included in the sub divided DCP. You may do it.

  The DCP providing unit 170 provides the DCP or the divided DCP created as described above to the screening device 20 via the detachable recording medium 1 or the network 2. The DCP providing unit 170 provides a writing unit 172 for providing the DCP or the divided DCP to the screening device 20 via the detachable recording medium 1, and provides the DCP or the divided DCP to the screening device 20 via the network 2. And a transmission unit 174 for performing the processing.

  The writing unit 172 includes the drive 108 and the CPU 101 that controls the drive 108. The writing unit 172 writes the DCP or divided DCP created by the DCP creating unit 160 on the removable recording medium 1 attached to the creation server 10. By transporting this detachable recording medium 1 to the theater and mounting it on the screening device 20, a DCP or a divided DCP can be provided from the creation server 10 to the screening device 20. If the removable recording medium 1 having a sufficient capacity is used, even a DCP or a divided DCP having a relatively large amount of data can be provided to the screening device 20.

  The transmission unit 174 includes the communication device 109 and a CPU 101 that controls the communication device 109. The transmission unit 174 transmits the DCP or the divided DCP created by the DCP creation unit 160 to the screening device 20 via the network 2. Thereby, a DCP or a divided DCP having a relatively small amount of data can be quickly and easily provided from the creation server 10 to the screening device 20. For example, the divided DCP of the replacement version described above can be suitably transmitted via the network 2 because the data amount of the content file corresponding to the difference from the original version is small. As a result, the screening device 20 can quickly acquire the replacement DCP from the creation server 10 and display the replacement digital cinema. In addition, when the replacement divided DCP includes only management files such as the replacement CPL and asset map and does not include the content file, the amount of data is very small. Suitable.

<6. How to create a digital cinema>
Next, a digital cinema creation method for creating a plurality of divided DCPs related to one digital cinema using the creation server 10 will be described.

  First, with reference to FIG. 10, a method of directly creating a plurality of divided DCPs without creating DCPs (parent DCPs to be a division source) corresponding to all screening versions of one digital cinema will be described.

  As shown in FIG. 10, first, the creation server 10 performs predetermined video processing on a plurality of video data that is material data of a digital cinema, and then sets the video data and audio data in advance. Compression encoding is performed on the format (step S10). For example, video data is encoded in JPEG2000 format and audio data is encoded in WAV format.

  Next, the creation server 10 wraps the encoded video data and audio data for each of one or more reels of the digital cinema, and creates a picture track file and a sound track file (step S12). ). The file format of the picture track file and the sound track file is, for example, an MXF file. If there is subtitle data, the creation server 10 wraps the subtitle data in a predetermined method (for example, a method such as SMPTE XML or MXF) to create a subtitle track file. As described above, subtitle data may be composed of font data (FontData) and XML data, or may be composed of PNG data and XML data corresponding to the number of subtitles. Similar to the audio data, it can be combined into one file by the MXF method. In step S12 as described above, a track file for each reel is created for video, audio, and subtitles.

  Next, the creation server 10 creates a plurality of CPLs for each screening version of the digital cinema (step S14). The CPL created for each screening version associates picture track files, sound track files, and / or subtitle track files (content files) of all the reels constituting the screening version.

  Further, the creation server 10 creates an asset map and a PL for all files (content file, VI, CPL, etc.) included in the DCP (step S16). At this time, when a plurality of CPLs are created, an asset map and a PL are created for all CPLs. Further, the creation server 10 determines the DCP division number (Volume number) based on a user input or automatically by a predetermined method, and creates VIs by this division number. For example, in the case of 10 divisions, 10 VIs in which serial numbers 1 to 10 are respectively described as division index information are created.

  Thereafter, the creation server 10 creates a plurality of divided DCPs for each screening version, and allocates a CPL and a content file to each divided DCP (step S18). At this time, at least one CPL is included in each divided DCP. In addition, the same asset map is commonly included in all the divided DCPs, and VIs having different division index information are allocated to the respective divided DCPs. In addition, from the viewpoint of reducing the total data amount, content files and PL that are referred to redundantly from a plurality of CPLs are included in the main divided DCP (for example, the original divided DCP) and sub-divided DCP (for example, In the replacement DCP), a content file corresponding to the difference between the original version and the replacement version is included.

  As described above, a plurality of divided DCPs can be directly created for each screening version of one digital cinema without creating a parent DCP including all content files.

  Next, a method for creating a plurality of divided DCPs by dividing the parent DCP after creating the parent DCP will be described with reference to FIG.

  As shown in FIG. 11, the creation server 10 first encodes the video / audio data (step S20), and then creates a picture track file and a sound track file (step S22). A plurality of CPLs are created (step S24). Since these steps S20, S22, and S24 are the same as steps S10, S12, and S14 of FIG. 10 described above, detailed description thereof is omitted.

  Next, the creation server 10 creates an asset map, PL, and VI for all the files that make up the digital cinema as in the past (step S26), and creates a DCP (parent DCP that is the division source) as 1 Volume. (Step S28), the asset map, PL, VI and all the content files are included in the parent DCP.

  Thereafter, the creation server 10 divides the single parent DCP into a plurality of divided DCPs (multiple Volumes) for each screening version (step S30). At this time, it is divided for each content file associated with each screening version of CPL. That is, the CPL of each screening version and the content file associated by this CPL are collectively allocated to each divided DCP. At this time, the same asset map is commonly included in all the divided DCPs. In addition, from the viewpoint of efficiently arranging data, content files and PL that are referred to redundantly from a plurality of CPLs are allocated to main divided DCPs (for example, original divided DCPs), and sub-divided DCPs (for example, divided DCPs) A content file corresponding to the difference between the original version and the replacement version is allocated to the replacement DCP).

  Further, the creation server 10 generates VIs having different division index information by the number of divided DCPs (that is, the number of divisions), and assigns each VI to each divided DCP (step S32). Thereafter, the creation server 10 adds the division index information (serial number) of the divided DCP to which each file is allocated to the asset map included in each divided DCP, and updates the asset map (step S34).

  As described above, after creating the parent DCP of the digital cinema, a plurality of divided DCPs are created by dividing the parent DCP in units of screening versions.

<7. Configuration of Screening Device 20 (Digital Cinema Processing / Playback Device)>
Next, the overall configuration of the screening apparatus 20 according to the present embodiment will be described with reference to FIG. FIG. 12 is an overall configuration diagram showing the screening device 20 according to the present embodiment.

  As shown in FIG. 12, the screening device 20 is played back, for example, a control device 30 that controls the screening server 40, a screening server 40 that plays back a digital cinema, and a projector 42 that projects the played back video on a screen. And a magnetic storage device 400 for storing the DCP or the divided DCP.

  The control device 30 is composed of, for example, a personal computer. The control device 30 is connected to the screening server 40 and controls the operation of the screening server 40. The control device 30 acquires the DCP or the divided DCP from the creation server 10 via the removable recording medium 1 or the network 2, and ingests the acquired DCP or the divided DCP into the magnetic storage device 400 of the screening server 40. To control the processing.

  The magnetic storage device 400 is an example of a storage device that stores data of a digital cinema, and includes, for example, an HDD. Since the data amount of digital cinema is generally large, a large-capacity external storage device capable of storing such digital cinema data is used as the magnetic storage device 400. From this point of view, as the magnetic storage device 400, a storage device (so-called RAID device) using RAID (Redundant Arrays of Inexpensive Disks), which is a technique for managing a plurality of hard disks as one hard disk, is used. This magnetic storage device 400 holds DCP or divided DCP data ingested by the screening server 40. In this case, the magnetic storage device 40 stores a plurality of digital cinema data divided into directories. The storage device that stores the DCP of the digital cinema is not limited to the example of the magnetic storage device 400, and a storage device using a large-capacity optical disk, a semiconductor memory, or the like as a storage medium may be used.

  The screening server 40 is a digital cinema playback device provided with playback means such as a decoder, and plays back digital cinema content (video, audio, subtitles) stored in the magnetic storage device 40. At the time of this reproduction process, the screening server 40 reads out and reproduces appropriate video, audio, and caption data at an appropriate timing based on the CPL. The screening server 40 outputs the reproduced video and caption data to the projector 42 and outputs the reproduced audio data to the speaker 42. Thereby, a digital cinema is shown in the theater.

  Next, with reference to FIG. 13, the hardware configuration of the control device 30 and the screening server 40 constituting the screening device 20 will be described in detail. FIG. 13 is a configuration diagram showing the control device 30 and the screening server 40 in the screening device 20 according to the present embodiment.

  As shown in FIG. 13, the control device 30 has the same device configuration as an information processing device such as a general personal computer. The control device 30 includes, for example, a CPU 301, a ROM 302, a RAM 303, an input device 304, an output device 305, a magnetic storage device 306, a drive 307, a communication device 308, a connection port 309, and these devices. And a local bus 310 connected to each other.

  The CPU 301 functions as an arithmetic processing device and a control device, and controls each device in the control device. The CPU 301 executes various processes according to a program stored in the ROM 302 or a program loaded from the magnetic storage device 306 to the RAM 303. The ROM 302 stores programs used by the CPU 301, calculation parameters, and the like. The RAM 303 temporarily stores programs used in the execution of the CPU 301, parameters that change as appropriate during the execution, and the like.

  The input device 304 includes, for example, an input unit such as a mouse, a keyboard, a touch panel, a button, a switch, and a lever, and an input control circuit that generates an input signal according to a user operation on the input unit and outputs the input signal to the CPU 301. . By operating this input device 304, the user can input various data to the control device 30 and instruct processing operations. The output device 305 includes, for example, a display device such as a CRT (Cathode Ray Tube) display device or a liquid crystal display (LCD) device, and an audio output device such as a speaker. For example, the output device 305 displays various information such as video of the reproduced content as text or an image, and outputs audio of the reproduced content.

  The magnetic storage device 306 is an example of a data storage device, and includes, for example, an HDD that uses a hard disk as a storage medium. The magnetic storage device 306 stores various data such as a program executed by the CPU 301, digital cinema content, DCP, log, and configuration information.

  The drive 307 is loaded with a detachable recording medium 1 and writes / reads various data such as digital cinema material contents, DCP, and configuration information to / from the recording medium 1. Specifically, the drive 307 reads data recorded on the removable recording medium 1 and supplies the data to the RAM 303 connected via the local bus 310. The CPU 301 stores these data in the magnetic storage device 306 or the like as necessary. On the other hand, the drive 307 receives data stored in the ROM 303 or the magnetic storage device 306, newly generated data, or data acquired from an external device from the CPU 301 and writes it to the removable recording medium 1. Using such a drive 307, the DCP or the divided DCP stored in the removable recording medium 1 can be read.

  The communication device 308 is a communication interface configured with, for example, a communication device for connecting the control device 30 to the network 2. The communication device 308 transmits / receives various data such as a divided DCP to / from an external device such as the creation server 10 via the network 2.

  The connection port 309 is a port for connecting the control device 30 to an external device such as the screening server 40, and has a connection terminal such as USB or IEEE1394. By connecting the control device 30 to the screening server 40 via the connection port 309 and a wired cable, various data such as DCP or divided DCP data and control signals are transmitted between the control device 30 and the screening server 40. Can be communicated.

  Next, the configuration of the screening server 40 will be described. As shown in FIG. 13, the screening server 40 includes, for example, a CPU 401, a main storage device 402, an input device 403, an output device 404, a magnetic storage device 400, a video decoding device 406, and an audio decoding device 407. Connection ports 408a to 408c and a local bus 410 for connecting these devices to each other. Among these, the CPU 401, the main storage device 402, the input device 403, and the output device 404 have substantially the same functional configurations as the CPU 101, the main storage device 102, the input device 103, and the output device 104 of the creation server 10 shown in FIG. Therefore, detailed description thereof is omitted.

  The magnetic storage device 400 is configured by a RAID device or the like as described with reference to FIG. The magnetic storage device 400 stores the DCP or divided DCP ingested in the screening device 20 in a separate directory for each digital cinema.

  The video decoding device 406 decompresses (decodes) video data that has been compression-encoded by a predetermined compression encoding method (for example, JPEG2000) included in the DCP. The audio decoding device 407 expands (decodes) audio data that has been compression-encoded in a predetermined compression encoding format (for example, WAV). The video decoding device 406 and the audio decoding device 407 can also decrypt (decrypt) the encrypted video data and audio data using the key information provided from the creation server 10.

  The connection ports 408a to 408c are ports for connecting the screening server 40 to external devices such as the control device 30, the projector 42, and the speaker 44. With this connection port 408a, various data such as DCP or divided DCP data and control signals can be communicated between the control device 30 and the screening server 40. Also, video data and audio data reproduced by the screening server 40 can be output to the projector 42 and the speaker 44 via the connection ports 408b and 408c.

  In the screening device 20 having the above-described configuration, the removable recording medium 1 is mounted on the control device 30, and the DCP or the divided DCP is read from the removable recording medium 1 by the drive 307 of the control device 30 to display the screening server. 40 magnetic storage devices 400 can be ingested. Further, the communication device 308 of the control device 30 can receive the DCP or the divided DCP from the creation server 10 via the network 2 and ingest it into the magnetic storage device 400 of the screening server 40. In addition, the screening server 40 can display a digital cinema by playing back a content file stored in the magnetic storage device 400.

  12 and 13, the control device 30 and the screening server 40 are configured as separate devices. However, the present invention is not limited to this example, and the control device 30 is integrated with the screening server 40 to be one. You may comprise with one apparatus. In this case, the removable drive 307 for the recording medium 1 and the communication device 308 for the network 2 are installed in the screening server 40.

  Next, the functional configuration of the screening apparatus 20 according to the present embodiment will be described with reference to FIGS. FIG. 14 is a functional configuration diagram showing the screening apparatus 20 according to the present embodiment. FIG. 15 is an explanatory diagram showing an ingest method in the screening apparatus 20 according to the present embodiment. FIG. 16 is a conceptual diagram showing the directory structure of the DCP area in the magnetic storage device 400 according to the present embodiment.

  As shown in FIG. 14, the screening device 20 includes a DCP acquisition unit 210, an asset map information extraction unit 220, a directory determination unit 230, an ingest unit 240, a file verification unit 250, and an ingest status determination unit 260. And a playback unit 270.

  The DCP acquisition unit 210 acquires the DCP or the divided DCP provided from the creation server 10 as data to be ingested into the screening device 20. When a plurality of divided DCPs are created for one digital cinema, the DCP acquisition unit 210 may acquire all of these divided DCPs or a part of the divided DCPs. Further, the DCp acquisition unit 210 may acquire the plurality of divided DCPs at the same time, or may acquire each divided DCP individually and sequentially.

  The DCP acquisition unit 210 acquires the DCP or the divided DCP created by the creation server 10 via the removable recording medium 1 or the network 2. Specifically, the DCP acquisition unit 210 includes a reading unit 212 for acquiring a DCP or a divided DCP from the creation server 10 via the removable recording medium 1, and a DCP or DCP from the creation server 10 via the network 2. And a receiving unit 214 for acquiring the divided DCP.

  The reading unit 212 includes a drive 307 of the control device 30 and a CPU 301 that controls the drive 307. The reading unit 212 reads the DCP or the divided DCP created by the creation server 10 from the removable recording medium 1 attached to the screening device 20. By using such a detachable recording medium 1, the screening device 20 can acquire a DCP or a divided DCP having a relatively large amount of data from the creation server 10.

  The receiving unit 214 includes a communication device 308 of the control device 30 and a CPU 301 that controls the communication device 308. The receiving unit 214 receives the DCP or the divided DCP created by the creation server 10 from the creation server 10 via the network 2. By using such network transfer, the screening device 20 can quickly and easily acquire a DCP or a divided DCP having a relatively small amount of data from the creation server 10. In particular, it is useful when acquiring a replacement divided DCP that includes only a management file such as a replacement CPL or asset map and does not include a content file.

  As shown in FIG. 15, the asset map information extraction unit 220 extracts asset map information, which is information unique to the asset map, from the asset map included in the ingest target divided DCP acquired by the DCP acquisition unit 210. To do. As the asset map information, any information can be used as long as it is information unique to the asset map such as identification information (for example, UUID) uniquely given to the asset map or a hash value of the asset map. The asset map information corresponds to each asset map 1: 1, and functions as asset map identification information and digital cinema identification information.

  As described above, when a plurality of divided DCPs are created for the same digital cinema, all the divided DCPs include the same asset map in common. That is, an asset map is created for each digital cinema. For example, in the example of FIG. 15, since the two divided DCPs 1 and 2 are both divided DCPs related to the same digital cinema, the same asset map is included and the asset map information is also the same. Accordingly, since the asset map information unique to the asset map is also information unique to the digital cinema, the asset map information and the digital cinema have a 1: 1 correspondence. Therefore, the digital cinema to which the ingest target divided DCP belongs can be determined from the asset map information.

  Therefore, when receiving the ingest instruction, the asset map information extraction unit 220 extracts the asset map from the divided DCP to be ingested, and extracts asset map information (for example, UUID) described in the asset map.

  Based on the asset map information extracted from the divided DCP to be ingested, the directory determining unit 230 determines the ingest destination directory of the divided DCP to be ingested in the DCP storage area of the magnetic storage device 400. . As shown in FIGS. 15 and 16, in the DCP storage area of the magnetic storage device 400, a directory for storing the DCP files separately is created in asset map information units (ie, digital cinema units). . The directory determination unit 230 determines an ingest destination directory so that one or more divided DCPs belonging to the same digital cinema are ingested into the same directory.

  At this time, the directory determination unit 230 determines whether a directory corresponding to the extracted asset map information already exists in the DCP area of the magnetic storage device 400. As a result, when the directory already exists (that is, when it has already been created when another divided DCP has been ingested in the past), the directory determination unit 230 divides the existing directory into the ingest target division. The directory is determined as the DCP ingest destination directory. On the other hand, if the directory does not exist (if it has not been created), the directory determination unit 230 creates a new directory corresponding to the extracted asset map information in the DCP area, and creates the newly created directory. Determine the directory to ingest. As described above, the directory determination unit 230 also has a function of managing (adding, deleting, etc.) a directory provided for each asset map information in the DCP storage area of the magnetic storage device 400.

  The ingest unit 240 ingests the files in the divided DCP to be ingested into the ingest destination directory of the magnetic storage device 400 determined by the directory determination unit 230. The ingestion of the divided DCP means that the divided DCP acquired from the external device is taken into the screening server 40 in a format that can be used by the screening server 40. The ingest unit 240 copies each file in the divided DCP to be ingested into the ingest destination directory of the magnetic storage device 400.

  At this time, the ingest unit 240 copies a file that does not exist in the ingest destination directory, and does not copy an existing file in the directory. For example, in the case of ingesting the divided DCP2 after the ingestion of the divided DCP1 in FIG. 15, the asset map and PL are already copied in the ingestion of the divided DCP1 and already exist in the directory. Not copied. For VI, since the file names are the same among the divided DCPs (however, the data in the VI is different because it is a serial number), the VI file name is changed to a different name for each divided DCP (for example, A VI having a different file name may be ingested in the same directory by adding an identifier such as “***. 1, 2, 3,...

  As described above, in the present embodiment, asset map information is extracted from the DCP to be ingested and notified to the target side of the ingest, where a directory corresponding to the asset map information is created and the DCP is created in that directory. Ingest files inside When one parent DCP is divided into a plurality of divided DCPs, the above ingest processing is performed for each divided DCP only several times. Since the plurality of divided DCPs belonging to the same digital cinema include the same asset map, they are ingested in the same directory.

  For example, in the example of FIG. 15, the divided DCP1 and the divided DCP2 belonging to the same digital cinema are ingested in the same directory. In the example of FIG. 16, three directories corresponding to three digital cinemas are created in the DCP area of the magnetic storage device 400. “Asset Map ID1 Dir /” and “Asset Map ID2 Dir /” indicate directories created in UUID units of the asset map, and “PL ID1 Dir /” indicates directories created in UUID units of the PL. In “Asset Map ID1 Dir /” and “Asset Map ID2 Dir /”, all the divided DCPs including the asset maps having the respective UUIDs are ingested. In addition, when ingesting a DCP that does not include an asset map, instead of the asset map, unique information (for example, the UUID of the PL) is always extracted from the included PL, and the directory “PL ID1 Dir / ”is created. It should be noted that in this “PL ID1 Dir /”, a non-divided DCP file is ingested, and a divided DCP including an asset map is not ingested.

  If all the divided DCPs belonging to the same digital cinema are ingested by the ingest method as described above, all the files in these divided DCPs are collected in the same directory, and the DCP files before the division are restored. It is possible to return to the state (the file configuration of the parent DCP). Further, as described above, by determining the directory based on the asset map information, a plurality of divided DCPs belonging to the same digital cinema are stored in the same directory without the user specifying the ingest destination directory. As described above, since it can be automatically ingested, the user's trouble can be reduced.

  The file verification unit 250 verifies the integrity of each file in the divided DCP based on the hash value described in the PL included in each divided DCP. In this embodiment, not only the main divided DCP but also all divided DCPs include PL. Therefore, if one divided DCP is acquired, each PL in the divided DCP is used by using the PL in the divided DCP. The integrity of the file can be verified. Here, verification of file integrity means checking that data of a content file such as a video file has not been damaged or changed from original data for some reason.

  The file verification unit 250 obtains a hash value for an arbitrary file in the divided DCP, and compares this hash value with the hash value of the file described in advance in the PL. As a result, if both match, it is determined that the file is not damaged and is a complete file. On the other hand, if the files do not match, it is determined that the file is an incomplete file that is damaged. Perform error notification. The file integrity verification may be performed on the file in the divided DCP before ingestion when the divided DCP is acquired, or after the ingestion of the divided DCP, the magnetic storage device 400 may be used. You may carry out with respect to the file memorize | stored in.

  The ingest status determination unit 260 determines the ingest status of a plurality of divided DCPs belonging to each digital cinema based on the division number information included in the ingested asset map. As described above, the asset map describes the division number information indicating the total number of divided DCPs created for one digital cinema, and the index information of the divided DCP in which each file is included. Therefore, by referring to this asset map, it is possible to determine the ingest status such as whether or not all of the plurality of divided DCPs belonging to each digital cinema have been ingested or the total number of ingested divided DCPs.

  For example, when a digital cinema is divided into 10 parts, “10” is described as the division number information in the asset map, and “1” to “10” are described as the division index information in each of the 10 divided DCP VIs. Is done. Of these, it is assumed that the divided DCPs whose division index information is “1” and “3” have already been ingested in the screening device 20. in this case. The ingest status determination unit 260 searches the asset map and VI in the directory in the magnetic storage device 400, and the division number information “10” included in the asset map and the division index information “1” included in the VI. With reference to “3”, it is determined that two of the ten divided DCPs have been ingested, but the other divided DCPs have not yet been ingested.

  The playback unit 270 includes the video encoding device 106, the video encoding device 106, and the CPU 101 that controls these. The reproduction unit 270 reproduces the content file stored in the magnetic storage device 400 based on the CPL, outputs the reproduced video file and subtitle file to the projector 42, and outputs the reproduced audio file to the speaker 44. As described above, when one or more divided DCPs are ingested into the magnetic storage device 400 of the screening apparatus 20, each file (CPL) included in the ingested divided DCP is stored in the magnetic storage device 400. , Content files, etc.) are copied. Based on the CPL stored in the magnetic storage device 400, the playback unit 270 plays back a content file (picture track file, sound track file and / or subtitle track file) corresponding to the CPL.

  As described above, in this embodiment, the DCP division unit is a CPL unit (screening version unit), and each division DCP can include a CPL and a content file associated by the CPL. In this case, the reproduction operation can be completed with the files in each divided DCP. In other words, based on the CPL included in a certain divided DCP, by playing the content file included in the divided DCP, one screening version of the digital cinema can be reproduced. Therefore, even if all the divided DCPs belonging to the digital cinema are not ingested in the screening device 20, if the one divided DCP is ingested, the reproducing unit 270 reproduces the divided DCP alone.

  Further, it is assumed that after ingesting the English version of the divided DCP1 shown in FIG. 5, the Japanese version of the divided DCP2 is ingested to reproduce the Japanese version of the digital cinema. In this case, the Japanese divided DCP2 does not include the English video file associated by the Japanese versions CPL2 and 3, but was included in the previously ingested English divided DCP1. The video file is stored in the magnetic storage device 400. For this reason, the playback unit 270 uses the Japanese version of the CPLs 2 and 3 stored in the magnetic storage device 400 to use the English video file and the Japanese audio file stored in the magnetic storage device 400 (or English video files, English audio files, and Japanese subtitle files).

<8. DCP Ingest Method>
Next, with reference to FIG. 17 and FIG. 18, a method of ingesting the divided DCP into the screening device 20 will be described. FIG. 17 is an operation sequence diagram between the control device 30 of the screening device 20 and the screening device 40 during ingest according to the present embodiment.

  As shown in FIG. 17, first, when the control device 30 receives a divided DCP ingest instruction from the user, the control device 30 transmits a capacity confirmation request for inquiring the free capacity of the magnetic storage device 400 to the screening server 40 (step S40). S100). Upon receiving this capacity confirmation request, the screening server 40 confirms the free capacity of the magnetic storage device 400 (step S102), and returns a response including information on this free capacity to the control apparatus 30 (step S104). In response to the response, the control device 30 checks whether or not the magnetic storage device 400 has a free capacity for storing the divided DCP to be ingested (step S106). If there is no free space, the control device 30 gives an error notification to that effect.

  If there is free space, the control device 30 transmits an ingest start request to the screening server 40 (step S108). When the screening server 40 receives the ingest start request, the control device 30 ingests the divided DCP. The exclusive control is performed (step S110), and then a response indicating that the exclusive control is completed is returned to the control device 30 (step S112). After this step S110, until the step S114 for receiving the ingest end request, the screening server 40 locks the reading and writing of data to and from the magnetic storage device 400 so that the divided DCP file can be suitably ingested. .

  Next, when receiving a response indicating that the exclusive control is completed, the control device 30 starts an ingest process and copies the file in the divided DCP to the magnetic storage device 400 (step S114). At this time, asset map information is extracted from the asset map of the divided DCP, and each file in the divided DCP is copied to a directory corresponding to the asset map information.

  Thereafter, when the ingest process is completed, the control device 30 transmits an ingest end request to the screening server 40 (step S116). When receiving the ingest end request, the screening server 40 unlocks the magnetic storage device 400 (step S118), and then returns a response to that effect to the control device 30 (step S120).

  As described above, the divided DCP to be ingested can be suitably ingested into the magnetic storage device 400 of the screening server 40 by controlling the screening server 40 by the control device 30.

  Next, an operation flow of the entire screening apparatus 20 in the ingest process will be described. FIG. 18 is a flowchart showing an ingest method in the screening apparatus 20 according to the present embodiment.

  As shown in FIG. 18, first, the screening apparatus 20 acquires one or more DCPs or divided DCPs created by the creation server 10 via the removable recording medium 1 or the network 2 (step S200: DCP acquisition step). Such a divided DCP becomes an object to be ingested into the screening device 20. Next, the screening device 20 determines whether or not the ingest destination magnetic storage device 400 has a free capacity capable of storing the DCP to be ingested or the divided DCP (step S202). An error notification to that effect is sent (step S204). On the other hand, when there is free space, the screening apparatus 20 executes the following ingest processing.

  First, the screening device 20 checks the UUID of the asset map or the UUID of the PL included in the DCP to be ingested or the divided DCP (step S206). If the data to be ingested is a DCP or a divided DCP, an asset map or a PL is always included therein. Therefore, by checking the asset map or the ID of the PL, it is possible to confirm whether the data to be ingested is a DCP or a divided DCP of a digital cinema compliant with the DCI standard.

  Next, the screening apparatus 20 determines whether the DCP to be ingested is a general DCP that is not divided or a divided DCP based on the management file included in the DCP to be ingested (step) S208). By checking information (for example, division number information) described in the asset map in the DCP, division index information described in the VI, or the like, it is possible to determine whether or not it is a divided DCP. As a result of this determination, if the DCP to be ingested is a general DCP (non-divided), the DCP is ingested into the magnetic storage device 400 according to a normal ingest method (step S210).

  On the other hand, when the ingest target DCP is a divided DCP, the screening apparatus 20 extracts the above-described asset map information (for example, UUID of the asset map) from the asset map included in the ingest target divided DCP ( Step S212: Asset map information extraction step). Next, the screening device 20 discriminates the divided DCP digital cinema to be ingested based on the extracted asset map information, and sets the ingest destination directory in the magnetic storage device 400 to the directory corresponding to the asset map information. (Step S216: Directory determination step).

  Further, it is determined whether or not a directory corresponding to the asset map information exists in the DCP storage area of the magnetic storage device 400 (step S216). If there is no directory corresponding to the asset map information as a result of this determination, the directory is newly created (step S218), and all files in the ingest target divided DCP are copied into the created directory (step S218). Step S220: Ingest step).

  On the other hand, as a result of the determination in step S216, if the directory corresponding to the asset map information already exists in the magnetic storage device 400, among the files in the divided DCP to be ingested, the existing directory A file that does not exist is copied to the directory (step S222: ingest step).

  The ingesting method as described above allows the screening device 20 to support divided DCP ingestion. Therefore, the creation server 10 can divide a large-capacity digital cinema content to create a divided DCP, and ingest the divided DCP into the screening device 20. At this time, the screening device 20 can classify various divided DCPs related to various digital cinemas for each digital cinema and ingest them into different directories of the magnetic storage device 400. At this time, since the directory of the ingest destination can be automatically determined based on the asset map information extracted from the divided DCP, it is possible to ingest easily, quickly, and appropriately without requiring the user to grasp the contents of the divided DCP. .

<9. Digital Cinema Playback Method>
Next, with reference to FIG. 19, a method for reproducing digital cinema content in the screening device 20 will be described. FIG. 19 is a flowchart showing a digital cinema content playback method according to this embodiment. In the following flow, by ingesting a plurality of divided DCPs related to one digital cinema into the screening device 20, the magnetic storage device 400 of the screening device 20 has CPLs and content files corresponding to a plurality of screening versions. Assume that it is stored in advance.

  As shown in FIG. 19, first, the screening device 20 selects a digital cinema to be reproduced and a screening version thereof based on a user input or the like (step S300). Next, the screening device 20 selects a directory corresponding to the selected digital cinema from a plurality of directories in the magnetic storage device 400 (step S302), and further from a plurality of CPLs in the directory. The CPL corresponding to the selected screening version is selected (step S304).

  Next, based on the CPL selected in step S304, the screening device 20 plays a content file (video file, audio file, subtitle file) corresponding to the CPL (step S306: playback step). Specifically, the screening device 20 reads the selected CPL from the magnetic storage device 400, interprets the description of the CPL, and contents files (video file, audio file, subtitle file) associated with the CPL. Are read from the magnetic storage device 400. The CPL describes the start position (entry point) and length of the scale of each content file for each reel. The screening device 20 sequentially decodes the data of each content file for each reel in accordance with the information on the start position and the length of the scale described in the CPL, and converts the data into a format that can be processed by the projector 42 and the speaker 44. Further, the screening device 20 outputs the video, audio, and subtitle reproduction data obtained in this way to the projector 42 and the speaker 44, and as a result, the digital cinema is screened (step S308).

  According to the above digital cinema playback method, after ingesting the divided DCP corresponding to each screening version into the magnetic storage device 400, the screening device 20 converts the digital cinema content stored in the magnetic storage device 400 into the screening version unit. Can be suitably played back based on the CPL created in (1). Furthermore, even if the divided DCPs corresponding to all the screening versions are not ingested in the magnetic storage device 400 and only some of the divided DCPs are ingested, they are included in the divided DCPs. Using the CPL, it is possible to play a screening version of the digital cinema corresponding to the CPL.

  Next, with reference to FIG. 20, a procedure for additionally creating and distributing another language version and a replacement digital cinema after distribution of the original version of the digital cinema will be described.

  As shown in FIG. 20, the distribution server creation server 10 creates an original version of a DCP for a digital cinema (step S400). (Step S402) and ingest into the magnetic storage device 400 of the screening device 20 (step S404). The original divided DCP includes the original content file and the original CPL that associates the content file. Using the original CPL, the screening device 20 can reproduce the original content file and display the original digital cinema (step S406).

  After the distribution and screening of the original digital cinema, a replacement digital cinema may be created. For example, in order to publish in a country other than the country where the film was originally released, another language version of the digital cinema is created, regulations for countries and regions where movies are released, replacement of scenes that can be used as corporate advertising, addition of scenes, etc. Create a replacement digital cinema to deal with changes.

  In this case, the distribution server creation server 10 additionally creates a divided DCP including the above-described different language version, replacement version CPL, and content file (step S408). The replacement divided DCP is distributed from the creation server 10 to the screening device 20 of each theater (step S410), and additionally ingested into the magnetic storage device 400 of the screening device 20 (step S412). As a result, the screening device 20 can use the different language version and the replacement version of the CPL to play the different language version and the replacement version of the content file, and display the different language version and the replacement version of the digital cinema. It becomes possible (step S414).

  As described above, by using the divided DCP according to the present embodiment, it is possible to easily create and distribute a digital cinema of a version different from the original version, so that it can be flexibly used for digital cinema language expansion and scene replacement. It will be possible to respond. Further, in such another divided DCP, it is only necessary to include the content file corresponding to the difference between the CPL and the original version and the original version, and it is not necessary to include a content file overlapping with the original version. The amount can be reduced and distributed easily and safely.

<10. Effect>
As described above, the digital cinema system according to the present embodiment, the creation server 10 that configures the digital cinema system, the screening device 20, and the processing thereof have been described in detail. According to the present embodiment, the DCP is divided into a plurality of divided DCPs for each screening version and distributed, so that a large volume of digital cinema content can be divided and ingested into the screening device 20. At this time, the divided DCPs of various digital cinemas can be automatically ingested into the directory for each digital cinema. Therefore, it is not necessary for the user to ingest DCP after manually integrating the DCP as in the prior art, and ingestion can be performed easily and accurately, so that user convenience can be improved. Furthermore, since it is not necessary to integrate a plurality of divided DCPs before ingesting, the storage capacity of the magnetic storage device 400 required for ingesting can also be reduced. The screening device 20 can ingest not only the divided DCP of the above-described format but also general DCP and digital cinema content of other formats.

  In addition, by including a CPL corresponding to at least one screening version and a content file associated therewith in each divided DCP, even if not all of the divided DCPs are ingested in the screening device 20, they are already ingested. The digital cinema of the screening version corresponding to the divided DCP can be reproduced.

  In addition, since the digital cinema can be efficiently divided by using the divided DCP of the division method as described above, the operation becomes easy when handling the digital cinema content. Further, by creating a divided DCP for each language version, it becomes possible to easily implement measures such as adding a corresponding language later. Also, by creating a divided DCP of an original version and a replacement version, it is possible to easily perform localization of digital cinema content, replacement of advertisement scenes, and the like.

  As mentioned above, although preferred embodiment of this invention was described referring an accompanying drawing, it cannot be overemphasized that this invention is not limited to the example which concerns. It will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the claims, and these are naturally within the technical scope of the present invention. Understood.

1 is a schematic configuration diagram showing a digital cinema system according to a first embodiment of the present invention. It is explanatory drawing which shows the file structure of the general DCP concerning this embodiment. It is explanatory drawing which shows the file structure of the general DCP concerning this embodiment. It is explanatory drawing which shows the file structure of the division | segmentation DCP concerning this embodiment. It is explanatory drawing which shows the file structure of the division | segmentation DCP produced for every language version concerning this embodiment. It is explanatory drawing which shows the file structure of the division | segmentation DCP corresponding to the original version and replacement version concerning this embodiment. It is explanatory drawing which shows the specific example of the scene replacement of the digital cinema concerning this embodiment. It is a block diagram which shows the creation server concerning this embodiment. It is a functional lineblock diagram showing the creation server concerning this embodiment. It is a flowchart which shows an example of the digital cinema production method concerning this embodiment. It is a flowchart which shows another example of the digital cinema production method concerning this embodiment. It is a whole lineblock diagram showing the screening device concerning this embodiment. It is a block diagram which shows the control apparatus and the screening server in the screening apparatus concerning this embodiment. It is a functional block diagram which shows the screening apparatus concerning this embodiment. It is explanatory drawing which shows the ingest method in the screening apparatus concerning this embodiment. It is a conceptual diagram which shows the directory structure of the DCP area | region in the magnetic storage apparatus concerning this embodiment. It is an operation | movement sequence diagram between the control apparatus of a screening apparatus and the screening apparatus at the time of the ingest concerning this embodiment. It is a flowchart which shows the ingest method in the screening apparatus concerning this embodiment. It is a flowchart figure which shows the reproduction method of the digital cinema content concerning this embodiment. It is explanatory drawing which shows the example of a procedure which distributes and screens the multiple screening version concerning this embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Removable recording medium 2 Network 10 Creation server 20 Screening device 30 Control device 40 Screening server 42 Projector 44 Speaker 120 Material acquisition part 122 Video processing part 124 Encoding part 130 Content storage part 132 Content file creation part 140 Management file creation part 142 CPL creation unit 144 Asset map creation unit 146 PL creation unit 148 VI creation unit 150 Management file storage unit 160 DCP creation unit 170 DCP provision unit 172 Write unit 174 Send unit 210 DCP acquisition unit 212 Read unit 214 Receive unit 220 Asset map information Extraction unit 230 Directory determination unit 240 Ingest unit 250 File verification unit 260 Ingest status determination unit 270 Playback unit 400 Magnetic storage device

Claims (20)

A digital cinema creation device for creating a digital cinema package (DCP):
A CPL creation unit that creates a plurality of composition playlists (CPL) for associating one or more picture track files, sound track files and / or subtitle track files related to the digital cinema for each screening version of the digital cinema ;
A DCP creating unit that creates a plurality of divided DCPs including at least the CPL corresponding to the screening version for each screening version;
An apparatus for creating a digital cinema, comprising: The DCP creation unit
After creating a first split DCP that includes a first CPL corresponding to a first screening version and a picture track file, a sound track file and / or a subtitle track file of the first screening version;
A second CPL corresponding to a second screening version, and a second CPL including a picture track file, a sound track file and / or a subtitle track file corresponding to a difference between the first screening version and the second screening version The digital cinema creating apparatus according to claim 1, wherein the divided DCP is additionally created.   The digital cinema creation device according to claim 1, wherein the screening version is a language version of the digital cinema. The CPL creation unit
A first language version of the CPL that associates a first language picture track file with the first language soundtrack file;
A second language audio version of the CPL that associates the first language picture track file and the second language sound track file, and / or the first language picture track file and the first language A second language subtitle version of the CPL that associates a sound track file with the subtitle track file of the second language;
Create
The DCP creation unit
A first language version of a split DCP including the first language picture track file, the first language sound track file, and the first language version of the CPL;
A second language comprising the second language soundtrack file and the second language audio version CPL and / or the second language subtitle track file and the second language subtitle version CPL; A version of the split DCP;
The digital cinema creating apparatus according to claim 3, wherein the digital cinema creating apparatus creates a digital cinema. The screening version is
The digital cinema creation device according to claim 1, comprising an original version of the digital cinema and a replacement version obtained by deleting or changing at least a part of scenes of the original version. The CPL creation unit
An original version of the CPL that associates a picture track file, a sound track file and / or a subtitle track file corresponding to the original version;
A replacement version of the CPL associating a picture track file, a sound track file and / or a subtitle track file corresponding to the replacement version;
Create
The DCP creation unit
A split DCP of the original version including a picture track file, a sound track file and / or a subtitle track file corresponding to the original version, and the CPL of the original version;
A divided DCP of the replacement version including a picture track file, a sound track file and / or a subtitle track file corresponding to the difference between the original version and the replacement version, and the CPL of the replacement version;
The digital cinema creating apparatus according to claim 5, wherein the digital cinema creating apparatus creates a digital cinema. The DCP creation unit
A split DCP of a replacement version that includes a CPL that associates a picture track file, a sound track file, and / or a subtitle track file corresponding to the replacement version, and does not include the picture track file, the sound track file, and the subtitle track file The digital cinema creating apparatus according to claim 5, wherein the digital cinema creating apparatus creates a digital cinema.   9. The digital cinema creation apparatus according to claim 8, further comprising a transmission unit that transmits the replacement divided DCP to a digital cinema playback apparatus via a wireless or wired network. The DCP creation unit
2. The digital cinema creation device according to claim 1, wherein the picture track file, the sound track file, and / or the subtitle track file that are associated with each other by the plurality of CPLs are included in only one main divided DCP. .   The each divided DCP further includes an asset map common to the plurality of divided DCPs, and a volume index in which index information for identifying each divided DCP is described. Digital cinema creation device. A digital cinema creation method for creating a digital cinema package (DCP) comprising:
A CPL creation step for creating a plurality of composition playlists (CPL) that associate one or more picture track files, sound track files, and / or subtitle track files related to the digital cinema for each digital cinema cinema screening version; ;
DCP creation step of creating a plurality of divided DCPs including at least the CPL corresponding to the screening version for each screening version;
A method for creating a digital cinema, comprising: Computer
A digital cinema creation device for creating a digital cinema package (DCP):
A CPL creation unit that creates a plurality of composition playlists (CPL) for associating one or more picture track files, sound track files and / or subtitle track files related to the digital cinema for each screening version of the digital cinema ;
A DCP creating unit that creates a plurality of divided DCPs including at least the CPL corresponding to the screening version for each screening version;
A program for functioning as a digital cinema creation device. A digital cinema playback device for playing back a digital cinema package (DCP) stored in a storage device:
For each screening version of one digital cinema, one of a plurality of composition playlists (CPL) associated with one or more picture track files, sound track files and / or subtitle track files related to the digital cinema is displayed. An ingest unit that ingests a divided DCP including at least a CPL corresponding to a version into the storage device;
A playback unit that plays back the picture track file, the sound track file, and / or the subtitle track file corresponding to the CPL based on the CPL;
A digital cinema playback device comprising: The ingest part is
After ingesting a first split DCP including a first CPL corresponding to a first screening version and a picture track file, a sound track file and / or a subtitle track file of the first screening version;
A second CPL corresponding to a second screening version, and a second CPL including a picture track file, a sound track file and / or a subtitle track file corresponding to a difference between the first screening version and the second screening version Ingest additional split DCPs,
The playback unit
Based on the second CPL, the picture track file, the sound track file, and / or the second screening version included in the first divided DCP or the second divided DCP in a distributed manner 14. The digital cinema playback apparatus according to claim 13, wherein the subtitle track file is played back.   14. The digital cinema playback apparatus according to claim 13, wherein the screening version is a language version of the digital cinema.   14. The digital cinema playback apparatus according to claim 13, wherein the screening version includes an original version of the digital cinema and a replacement version obtained by deleting or changing at least a part of scenes of the original version.   The divided DCP of the replacement version includes a CPL that associates a picture track file, a sound track file, and / or a subtitle track file corresponding to the replacement version, and includes the picture track file, the sound track file, and the subtitle track file. The digital cinema playback apparatus according to claim 16, wherein the digital cinema playback apparatus is not included.   18. The digital cinema playback apparatus according to claim 17, further comprising a receiving unit that receives the replacement divided DCP from a digital cinema creation apparatus that creates the divided DCP via a wireless or wired network. . A digital cinema playback method for playing back a digital cinema package (DCP) stored in a storage device:
For each screening version of one digital cinema, one of a plurality of composition playlists (CPL) associated with one or more picture track files, sound track files and / or subtitle track files related to the digital cinema is displayed. An ingest step of ingesting into the storage device a divided DCP including at least a CPL corresponding to a version;
A reproduction step of reproducing the picture track file, the sound track file and / or the subtitle track file of the screening version corresponding to the CPL based on the CPL after ingesting the divided DCP;
A digital cinema playback method comprising: Computer
A digital cinema playback device for playing back a digital cinema package (DCP) stored in a storage device:
For each screening version of one digital cinema, one of a plurality of composition playlists (CPL) associated with one or more picture track files, sound track files and / or subtitle track files related to the digital cinema is displayed. An ingest unit that ingests a divided DCP including at least a CPL corresponding to a version into the storage device;
A playback unit that plays back the picture track file, the sound track file, and / or the subtitle track file corresponding to the CPL based on the CPL;
A program for causing a digital cinema playback device to function.

Images