CN114205655B - Digital cinema copy distribution method and system - Google Patents

Digital cinema copy distribution method and system Download PDF

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Publication number
CN114205655B
CN114205655B CN202111501879.4A CN202111501879A CN114205655B CN 114205655 B CN114205655 B CN 114205655B CN 202111501879 A CN202111501879 A CN 202111501879A CN 114205655 B CN114205655 B CN 114205655B
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dcp
distribution
uploading
package
module
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CN114205655A (en
Inventor
张海悦
徐涛
刘知一
王木旺
李雪伟
刘斌
张尚乾
解沛
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CHINA FILM SCIENCE AND TECHNOLOGY INST
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CHINA FILM SCIENCE AND TECHNOLOGY INST
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/27—Server based end-user applications
    • H04N21/274—Storing end-user multimedia data in response to end-user request, e.g. network recorder
    • H04N21/2743—Video hosting of uploaded data from client
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/12—Applying verification of the received information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/12—Applying verification of the received information
    • H04L63/123—Applying verification of the received information received data contents, e.g. message integrity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H04L9/3236—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials using cryptographic hash functions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/258—Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
    • H04N21/25866—Management of end-user data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/258—Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
    • H04N21/25866—Management of end-user data
    • H04N21/25875—Management of end-user data involving end-user authentication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/414—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
    • H04N21/41415—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance involving a public display, viewable by several users in a public space outside their home, e.g. movie theatre, information kiosk

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Multimedia (AREA)
  • Databases & Information Systems (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Graphics (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Information Transfer Between Computers (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

The application discloses a digital cinema copy distribution method and a digital cinema copy distribution system. The method specifically comprises the steps that a first uploading module responds to an uploading instruction submitted by a user, and performs basic format specification inspection on a DCP issuing package to be uploaded and uploads the DCP issuing package; the second uploading module performs integrity and accuracy check on the DCP issuing package after uploading, and when the verification is passed; a user establishes a distribution task through a distribution management module and distributes a DCP distribution package to each appointed receiving module; the receiving module acquires a corresponding distribution task from the distribution management module according to the equipment, downloads the DCP distribution package according to the task, performs receiving verification on the DCP distribution package, and judges that the distribution is successful when the verification is passed. The application can be seen that the film end-to-end distribution mode which is safe, efficient and stable can ensure the efficient operation of the cinema under the condition of reducing manpower expenditure, and meets the requirements of cinema informatization management, intelligent upgrading and various projection modes.

Description

Digital cinema copy distribution method and system
Technical Field
The application relates to the field of movie information distribution, in particular to a digital movie copy distribution method and a digital movie copy distribution system.
Background
In recent years, under the guidance of industrialization and digital strategy, the movie industry in China realizes the great development of rapid progress, achieves great achievements of great attention, and accelerates the progress to informatization, networking and intellectualization. The continuous expansion of cinema in China means that market competition will be more and more vigorous, the cinema showing is not limited to professional showing any more, and various modes such as self-service film selection, campus showing and the like appear in the market successively, so that the multi-mode cinema showing scene will become a necessary development trend.
In addition, the movie transmission modes such as mailing hard disk, satellite transmission and the like adopted by the current cinema have the problems of high operation cost, poor timeliness and the like, and the market demand is difficult to meet in the future. Most of the existing automatic management equipment and applications are only suitable for cinema operation terminals, and most of the work related to film distribution terminals is still manual operation at present, and the problem of high manpower expenditure exists.
In view of the above-mentioned problems with digital cinema copy distribution management, there is a need for a secure, efficient, stable film end-to-end distribution method.
Disclosure of Invention
Based on the above, the embodiment of the application provides a digital film copy distribution method, a system, equipment and a storage medium, which are in face of requirements of cinema informatization management, intelligent upgrading and various showing modes, and the safe, efficient and stable film end-to-end distribution mode can ensure that the cinema can operate efficiently under the condition of reducing manpower expenditure.
In a first aspect, there is provided a digital cinema copy distribution method comprising:
the method comprises the steps that a first uploading module responds to an uploading instruction submitted by a user, basic format specification inspection is conducted on a DCP issuing package to be uploaded, when the basic format specification inspection is passed, connection is established with a second uploading module, and the DCP issuing package is uploaded;
the second uploading module performs integrity and accuracy verification on the DCP issuing package after uploading, and when the verification passes, the uploading is judged to be successful, and the DCP issuing package is marked as being capable of being distributed in the distribution management module;
a user establishes a distribution task according to basic information of a cinema and equipment which are input in advance through a distribution management module, and distributes the DCP distribution package to each receiving module;
the receiving module acquires a corresponding distribution task from the distribution management module according to the equipment, downloads a DCP distribution packet according to the task, performs receiving verification on the DCP distribution packet after receiving the DCP distribution packet, and judges that distribution is successful when verification is passed.
Optionally, before the first uploading module responds to the uploading instruction submitted by the user and performs the basic format specification conformity check on the DCP release package to be uploaded, the method further includes:
and the user submits an uploading instruction to the first uploading module through the distribution management module, wherein the uploading instruction comprises the basic information of the release edition, which is input by the producer or the issuer user in the distribution management module.
Optionally, the release basic information includes a release name, a presentation type, and the system automatically generates a unique ID for each release information.
Optionally, the performing basic format specification verification on the DCP release package to be uploaded includes:
checking the number and the names of DCP issuing package files to be uploaded; and checking the file name, the size and the hash value recorded in the packing list and the asset mapping table in the DCP issuing package and the corresponding file in the DCP issuing package.
Optionally, the second uploading module performs integrity and accuracy verification on the DCP release package after the uploading is completed, including:
comparing the file size and the hash value when the second uploading module receives one file in the DCP issuing package, if the file size and the hash value are consistent, continuing to receive the next file, if the file size and the hash value are inconsistent, deleting the received file, and notifying the first uploading module to upload again;
and after all the files in the DCP issuing package are received, comparing the size of the DCP issuing package with the number of the files contained in the DCP issuing package, judging that the uploading is successful if the sizes are consistent, deleting the received DCP issuing package if the sizes are inconsistent, and notifying a first uploading module to upload again.
Optionally, the receiving module receives the DCP release package, further includes: and according to the number of the distribution tasks, respectively establishing a receiving thread for each distribution task, and establishing the same folder structure under the storage path of the DCP of the equipment by the receiving module according to the original folder structure of the DCP distribution package, and receiving and storing the file under the corresponding path.
Optionally, the receiving module performs a receiving check on the DCP distribution packet after receiving the DCP distribution packet, including:
comparing the file size and the hash value when the receiving module receives one file in the DCP issuing package, if the file size and the hash value are consistent, continuing to receive the next file, if the file size and the hash value are inconsistent, deleting the received file, and receiving again;
and after all the files in the DCP issuing package are received, comparing the size of the DCP issuing package with the number of the files contained in the DCP issuing package, judging that the DCP issuing package is successfully received if the DCP issuing package is consistent with the number of the files contained in the DCP issuing package, deleting the received DCP issuing package if the DCP issuing package is inconsistent with the number of the files contained in the DCP issuing package, and re-receiving the DCP issuing package.
Optionally, after the DCP release package to be uploaded is subjected to the basic format specification test, the method further includes: and when the basic format specification test fails, sending an uploading failure prompt message to the user.
Optionally, the first uploading module and the receiving module support breakpoint continuous transmission in the transmission process of uploading and receiving the DCP release packet, and report the transmission progress to the distribution management module at regular time.
In a second aspect, a digital cinema copy distribution system is provided, the system comprising a first uploading module, a second uploading module, a distribution management module and a receiving module;
the first uploading module responds to an uploading instruction submitted by a user, performs basic format specification inspection on a DCP issuing package to be uploaded, establishes connection with a second uploading module when the basic format specification inspection is passed, and uploads the DCP issuing package;
the second uploading module performs integrity and accuracy verification on the DCP issuing package after uploading is completed, and when verification passes, the uploading is judged to be successful, and the DCP issuing package is marked as being capable of being distributed in a distribution management module;
the distribution management module is used for distributing the DCP distribution package to each receiving module according to basic information of cinema and equipment input in advance by a user and an established distribution task;
the receiving module acquires a corresponding distribution task from the distribution management module according to the equipment, downloads a DCP distribution packet according to the task, performs receiving verification on the DCP distribution packet after receiving the DCP distribution packet, and judges that distribution is successful when verification is passed.
In the technical scheme provided by the embodiment of the application, a first uploading module responds to an uploading instruction submitted by a user, performs basic format specification inspection on a DCP issuing package to be uploaded, establishes connection with a second uploading module when the basic format specification inspection passes, and uploads the DCP issuing package; the second uploading module performs integrity and accuracy verification on the DCP issuing package after uploading, and when verification passes, a user establishes a distribution task according to basic information of a cinema and equipment which are input in advance through the distribution management module, and distributes the DCP issuing package to each receiving module; the receiving module acquires a corresponding distribution task from the distribution management module according to the equipment, downloads the DCP distribution package according to the task, performs receiving verification on the DCP distribution package after receiving the DCP distribution package, and judges that the distribution is successful when the verification is passed.
The technical scheme provided by the embodiment of the application has the beneficial effects that at least:
(1) The method realizes the whole flow control and information storage from distribution preparation to finishing of the film distribution package, simplifies the manual intervention in the film copying process as much as possible, ensures the safety and the integrity of the distributed film files, and ensures the timeliness of various cinema film shows.
(2) The network-based film copying end-to-end distribution mode can meet the special operation mode of various cinema, solve the film distribution requirement of cinema multi-mode projection terminals, avoid redundant manpower operation cost, reduce transmission cost, provide film projection foundation for various cinema in China, and help cinema improve economic benefit. Meanwhile, in order to improve the film distribution efficiency, a new film distribution mode is explored and created, and the new requirements of film industry production and release are met, so that technological support and decision reference are provided.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those of ordinary skill in the art that the drawings in the following description are exemplary only and that other implementations can be obtained from the extensions of the drawings provided without inventive effort.
FIG. 1 is an overall flow chart of a digital cinema copy distribution method provided by an embodiment of the present application;
FIG. 2 is a specific flowchart of a digital cinema copy distribution method according to an embodiment of the present application;
fig. 3 is a functional module architecture diagram of a digital cinema copy distribution system according to an embodiment of the present application.
Detailed Description
Other advantages and advantages of the present application will become apparent to those skilled in the art from the following detailed description, which, by way of illustration, is to be read in connection with certain specific embodiments, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In recent years, under the guidance of industrialization and digital strategy, the movie industry in China realizes the great development of rapid progress, achieves great achievements of great attention, and accelerates the progress to informatization, networking and intellectualization. The continuous expansion of cinema in China means that market competition will be more and more vigorous, the cinema showing is not limited to professional showing any more, and various modes such as self-service film selection, campus showing and the like appear in the market successively, so that the multi-mode cinema showing scene will become a necessary development trend. In addition, the movie transmission modes such as mailing hard disk, satellite transmission and the like adopted by the current cinema have the problems of high operation cost, poor timeliness and the like, and the market demand is difficult to meet in the future. Most of the existing automation management devices and applications are only suitable for cinema operation, and most of the works related to film distribution are still manually operated at present. In the face of cinema informatization management, intelligent upgrading and various showing mode demands, the safe, efficient and stable film end-to-end distribution mode can ensure efficient operation of the cinema under the condition of reducing manpower expenditure.
Based on film distribution characteristics, aiming at the terminal requirements of cinema in multiple modes, the project provides a network-based film copying end-to-end distribution mode, designs and develops a network-based film copying end-to-end distribution system, takes a film producer as a starting point, takes a film projector as an ending point, and takes a film distributor as an integral control end, so that the whole flow control and information storage from distribution preparation to ending of a film distribution package are realized, the manual intervention in the film copying process is simplified as much as possible, the safety and the integrity of film file distribution are ensured, and the timeliness of film showing of various cinemas is ensured.
In view of the characteristics of large file distribution of film copy, large number of receivers such as cinema, wide range, distributed distribution and the like, in order to ensure distribution efficiency and support network compatibility of various projection receiving ends, the application adopts a content distribution network (Content Delivery Network, hereinafter referred to as CDN) technology to accelerate the distribution speed of film copy. On the basis of CDN infrastructure architecture, the application discloses a set of network-based film copying end-to-end distribution system, which mainly comprises a management website distribution management module, a terminal uploading module and a receiving module. Fig. 1 is an overall flow of network-based distribution of digital cinema copies.
For the understanding of the present embodiment, a digital cinema copy distribution method disclosed in the present embodiment will be described in detail, and the method may include the following steps:
s1, a first uploading module responds to an uploading instruction submitted by a user, performs basic format specification inspection on a DCP issuing package to be uploaded, establishes connection with a second uploading module when the basic format specification inspection is passed, and uploads the DCP issuing package.
The DCP distribution package refers to a digital cinema data package, which is a data package containing digital cinema content and related information and transmitted to a digital cinema, and corresponds to a copy in a film movie. Typically consists of a digital cinema content file (containing image, sound and subtitle track files), a Composite Playlist (CPL), a packed list (PKL), an Asset Mapping (Asset Mapping) table, and a Volume Index (Volume Index) file.
In the embodiment of the application, the uploading instruction submitted by the user can be submitted to the first uploading module through the distribution management module, wherein the uploading instruction comprises the basic information of the release edition which is input by the user of the producer or the issuer at the webpage end interface of the distribution management module.
S2, the second uploading module performs integrity and accuracy verification on the DCP issuing package after uploading, and when verification passes, the DCP issuing package is judged to be successfully uploaded, and the DCP issuing package is marked as being capable of being distributed in the distribution management module.
The uploading module comprises a first uploading module and a second uploading module which are respectively embedded in a packaging server or a workstation with a packaging function and a network distribution center. And establishing connection between the first uploading module and the second uploading module and executing uploading operation under the condition that the issuing package is determined to meet the basic specification of the specification according to the uploading command submitted by the user.
In the embodiment of the application, the second uploading module in the uploading module checks the integrity and the accuracy of the received file, and ensures the consistency of the uploaded DCP issuing package. After the uploading is successful, the CDN system caches the DCP release package to each delivery node, so that each cinema can acquire the DCP release package from the delivery node closest to the cinema.
In the uploading modules (the first uploading module and the second uploading module), the DCP issuing package is mainly uploaded to the distribution center server, and the main functions comprise task acquisition, file uploading and transmission verification.
(1) Task acquisition
After clicking the release management page of the distribution management module and uploading the release package, a call message is sent to the first uploading module, and the release ID of the release package to be uploaded is sent. After receiving the message, the first uploading module pops up an issuing package selection box, and after the user selects and submits a DCP issuing package path through the selection box, the issuing package is subjected to basic format specification inspection, and if the basic format specification inspection meets the condition, the uploading task is recorded.
The issuing package base format specification check comprises checking whether the number and the file name of the issuing package files meet the conditions, and checking the file names, the sizes and the hash values recorded in a packing list and an asset mapping table in the DCP issuing package and the corresponding files in the DCP issuing package.
(2) File upload
The first uploading module reads the DCP issuing package to be uploaded and the information containing the file, and reports the DCP issuing package to the distribution management module and the second uploading module for consistency verification.
The first uploading module establishes connection with the second uploading module, transmits the file to the second uploading module storage equipment, supports breakpoint continuous transmission in the transmission process, and reports the transmission progress to the distribution management module at regular time.
(3) Transmission verification
And comparing the file size and the hash value after the second uploading module finishes receiving one file, if the file size and the hash value are consistent, continuing to receive the next file, if the file is inconsistent, deleting the received file, and notifying the first uploading module to upload again. After all the files of the distribution package are received, comparing the size of the distribution package with the number of the files contained, if the sizes are consistent, judging that the uploading is successful, if the sizes are inconsistent, deleting the received distribution package, and notifying the first uploading module to re-upload.
And S3, the user establishes a distribution task according to basic information of the cinema and the equipment which are input in advance through a distribution management module, and distributes the DCP distribution package to each receiving module.
The distribution management module schedules and controls the whole distribution flow, provides different authority webpage end interaction interfaces for different types of users, and is convenient for maintaining basic information and managing distribution tasks. Meanwhile, information interaction with the uploading module and the receiving module is realized.
In the embodiment of the application, the distribution management module provides an interactive terminal interface for a user in a website form, and correspondingly provides different management control authorities for adding, editing, deleting, viewing, inquiring and the like 5 sub-module information of release management, cinema management, equipment management, distribution management, user management and the like on the basis of user login authentication.
(1) Login authentication
And the system displays a corresponding authority submodule menu according to the category of the user login account. The specific authority correspondence relationship is as follows:
a system administrator: the initial user supports to view and operate all sub-modules, including login authentication, release management, cinema management, equipment management, distribution management and user management.
The issuer: all sub-modules are supported to be checked and operated, including login authentication, release management, cinema management, equipment management, distribution management and user management.
The preparation method comprises the following steps: the supporting view and operation submodule comprises login authentication and release management.
The screening party: the supporting view and operation submodule comprises login authentication, cinema management, equipment management and distribution management. Wherein, cinema management, equipment management, distribution management sub-module only supports to view the relevant data of the current user management cinema.
(2) Distribution plate management
And managing the release information, including checking lists, inquiring, checking details, adding, editing and deleting. The release information comprises release names and showing types, and the system automatically generates a unique ID for each release information, so that the unique ID is used as a communication identifier with the uploading module.
The release management page may display the status of the transmission reported by the upload module.
(3) Cinema and equipment management
And managing cinema and equipment information, including list viewing, inquiry, detail viewing, adding, editing and deleting. Cinema and equipment information includes cinema names, equipment codes, presentation types, DCP storage paths, equipment codes are not repeatable, and the system uses the equipment codes as communication identifications with the receiving modules. In the embodiment of the application, the DCP storage path is the equipment information input in advance by the user through the distribution management module, and the DCP storage path comprises a path for storing the DCP package by the input equipment.
(4) Distribution management
And managing the distribution information, including checking a list, inquiring, checking details and creating tasks. The distribution information comprises a release name, a cinema name, a device code and a DCP storage path, and the system automatically generates a unique ID for each piece of distribution information to be used as a communication identifier with a receiving module. Wherein, when creating tasks, only the release plate and cinema equipment of the same showing type can be selected to establish the distribution tasks.
The distribution management page may display the transmission status reported by the receiving module.
(5) User management
And managing the user information, including checking a list, inquiring, checking details, adding, editing and deleting. The user information includes user account number, user type, password.
The website can only log in by using the successfully added user account number and password.
S4, the receiving module acquires a corresponding distribution task from the distribution management module according to the equipment, downloads the DCP distribution package according to the task, performs receiving verification on the DCP distribution package after receiving the DCP distribution package, and judges that distribution is successful when verification is passed.
Specifically, the receiving module is embedded in a cinema management system (TMS) or a projection server or other projection terminal to automatically receive the DCP distribution package based on the distribution task, and the integrity and accuracy of the DCP distribution package are checked in the same way, so that the DCP distribution package can be successfully analyzed and projected.
In the embodiment of the application, the receiving module mainly receives the DCP release package from the distribution center, and the main functions comprise task acquisition, file receiving and transmission verification.
(1) Task acquisition
The receiving module requests the distribution management module to acquire the distribution task at regular time according to the equipment code of the equipment. And if the distribution task exists, starting to execute the receiving.
(2) File reception
The receiving module establishes a receiving thread for each receiving (or distributing) task according to the number of distributing tasks. The receiving module establishes the same folder structure under the storage path of the DCP of the equipment according to the original folder structure of the DCP release package, and receives and stores the file under the corresponding path. And supporting breakpoint continuous transmission in the transmission process, and reporting the transmission progress to the distribution management module at regular time.
(3) Transmission verification
And comparing the file size with the hash value after the receiving module finishes receiving one file, if the file size and the hash value are consistent, continuing to receive the next file, and if the file size and the hash value are inconsistent, deleting the received file and re-receiving the file. After all the files of the issuing package are received, comparing the size of the issuing package with the number of the files contained, if the sizes are consistent, judging that the receiving is successful, if the sizes are inconsistent, deleting the received issuing package, and re-receiving the issuing package.
As in fig. 2, another embodiment of digital cinema copy distribution is presented. In the whole distribution flow, except for the links needing to be manually decided, such as inputting release edition information, cinema and equipment information, creating distribution tasks and the like, the application ensures the automatic completion of the whole flow as much as possible and avoids redundant manual operation behaviors.
To perform film copy distribution, the producer or the issuer first needs to enter the basic information of the release plate at the interface of the webpage end, and the first uploading module is automatically started or evoked when clicking the 'upload release package'. The first uploading module receiving the task carries out basic format specification conformity check on the DCP issuing package to be uploaded, automatically establishes connection with the second uploading module under the condition of conforming to the specification, executes file uploading, and supports functions of breakpoint continuous uploading, error retransmission and the like during transmission.
After the DCP distribution package is successfully uploaded to the distribution center, a user can create a corresponding distribution task under the condition that the cinema and equipment basic information is already input into a webpage end interface, and the designated distribution package is selected to be distributed to each independent cinema equipment. The receiving module automatically executes the receiving and downloading of the issuing package according to the distributing task, and performs integrity and accuracy check on the file after the receiving is completed, and the functions of breakpoint continuous transmission, error retransmission and the like are also supported during the transmission.
The network-based film copying end-to-end distribution mode can meet the special operation mode of various cinema, solve the film distribution requirement of cinema multi-mode projection terminals, avoid redundant manpower operation cost, reduce transmission cost, provide film projection foundation for various cinema in China, and help cinema improve economic benefit. Meanwhile, scientific and technological support and decision reference are provided for improving film distribution efficiency, exploring and creating new film distribution modes, and meeting new requirements of film industry production and release in China.
Referring to fig. 3, a functional module architecture diagram of a digital cinema copy distribution system according to an embodiment of the present application is mainly composed of an uploading module, a receiving module and a distribution management module, where the modules interact with each other.
The uploading module (comprising a first uploading module and a second uploading module) firstly checks the film copy file to be uploaded, provides file uploading service under the condition of conforming to the standard of the basic format of the DCP release package, supports breakpoint continuous transmission and error retransmission functions, performs integrity and accuracy check on the file after transmission, and meanwhile realizes information interaction with the distribution management module.
The receiving module provides file receiving service, supports breakpoint continuous transmission and error retransmission functions, performs accuracy and integrity check on the transmitted file, and meanwhile realizes information interaction with the distribution management module.
The distribution management module is composed of a server side and a user interaction side, the server side records and feeds back data reported or requested by the uploading module, the receiving module and the user interaction side, the user interaction side displays the data in a webpage form and performs information interaction with an information management interface of the server side uniformly, and login authentication and operations such as adding, editing, deleting, inquiring and viewing of release information, cinema and equipment information, distribution information and user management information are realized.
For specific limitations on the digital cinema copy distribution system, reference may be made to the limitations on the digital cinema copy distribution method hereinabove, and no further description is given here. The various modules in the digital cinema copy distribution system described above may be implemented in whole or in part in software, hardware, and combinations thereof.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.

Claims (9)

1. A digital cinema copy distribution method, the method comprising:
the method comprises the steps that a first uploading module responds to an uploading instruction submitted by a user, basic format specification inspection is conducted on a DCP issuing package to be uploaded, when the basic format specification inspection is passed, connection is established with a second uploading module, and the DCP issuing package is uploaded;
the second uploading module performs integrity and accuracy verification on the DCP issuing package after uploading, and when the verification passes, the uploading is judged to be successful, and the DCP issuing package is marked as being capable of being distributed in the distribution management module;
a user establishes a distribution task according to basic information of a cinema and equipment which are input in advance through a distribution management module, and distributes the DCP distribution package to each receiving module;
the receiving module acquires a corresponding distribution task from the distribution management module according to the equipment, downloads a DCP distribution packet according to the task, performs receiving verification on the DCP distribution packet after receiving the DCP distribution packet, and judges that distribution is successful when verification is passed;
the second uploading module performs integrity and accuracy check on the DCP issuing package after uploading, and the second uploading module comprises:
comparing the file size and the hash value when the second uploading module receives one file in the DCP issuing package, if the file size and the hash value are consistent, continuing to receive the next file, if the file size and the hash value are inconsistent, deleting the received file, and notifying the first uploading module to upload again;
and after all the files in the DCP issuing package are received, comparing the size of the DCP issuing package with the number of the files contained in the DCP issuing package, judging that the uploading is successful if the sizes are consistent, deleting the received DCP issuing package if the sizes are inconsistent, and notifying a first uploading module to upload again.
2. The method of claim 1, wherein the first upload module is responsive to an upload instruction submitted by a user, the method further comprising, prior to the performing the basic format specification compliance check on the DCP release package to be uploaded:
and the user submits an uploading instruction to the first uploading module through the distribution management module, wherein the uploading instruction comprises the basic information of the release edition, which is input by the producer or the issuer user in the distribution management module.
3. The method of claim 2, wherein the release base information includes a release name, a presentation type, and the system automatically generates a unique ID for each release information.
4. The method of claim 1, wherein the performing a basic format specification check on DCP release packages to be uploaded comprises:
checking whether the DCP issuing package to be uploaded contains necessary files or not;
and checking the file name, the size and the hash value recorded in the packing list and the asset mapping table in the DCP issuing package and the corresponding file in the DCP issuing package.
5. The method of claim 1, wherein receiving the DCP release package by a receiving module further comprises:
and according to the number of the distribution tasks, respectively establishing a receiving thread for each distribution task, and establishing the same folder structure under the storage path of the DCP of the equipment by the receiving module according to the original folder structure of the DCP distribution package, and receiving and storing the file under the corresponding path.
6. The method of claim 1, wherein the receiving module, after receiving the DCP release packet, performs a reception check on the DCP release packet, comprising:
comparing the file size and the hash value when the receiving module receives one file in the DCP issuing package, if the file size and the hash value are consistent, continuing to receive the next file, if the file size and the hash value are inconsistent, deleting the received file, and receiving again;
and after all the files in the DCP issuing package are received, comparing the size of the DCP issuing package with the number of the files contained in the DCP issuing package, judging that the DCP issuing package is successfully received if the DCP issuing package is consistent with the number of the files contained in the DCP issuing package, deleting the received DCP issuing package if the DCP issuing package is inconsistent with the number of the files contained in the DCP issuing package, and re-receiving the DCP issuing package.
7. The method of claim 1, wherein after the performing the basic format specification check on the DCP release package to be uploaded, further comprising:
and when the basic format specification test fails, sending an uploading failure prompt message to the distribution management module.
8. The method of claim 1, wherein the first uploading module and the receiving module support breakpoint continuous transmission during the transmission of uploading and receiving DCP distribution packets, and periodically report the transmission progress to the distribution management module.
9. A digital cinema copy distribution system, characterized in that the system comprises a first uploading module, a second uploading module, a distribution management module and a receiving module;
the first uploading module responds to an uploading instruction submitted by a user, performs basic format specification inspection on a DCP issuing package to be uploaded, establishes connection with a second uploading module when the basic format specification inspection is passed, and uploads the DCP issuing package;
the second uploading module performs integrity and accuracy verification on the DCP issuing package after uploading is completed, and when verification passes, the uploading is judged to be successful, and the DCP issuing package is marked as being capable of being distributed in a distribution management module;
the distribution management module is used for distributing the DCP distribution package to each receiving module according to basic information of cinema and equipment input in advance by a user and an established distribution task;
the receiving module acquires a corresponding distribution task from the distribution management module according to the equipment, downloads a DCP distribution packet according to the task, performs receiving verification on the DCP distribution packet after receiving the DCP distribution packet, and judges that distribution is successful when verification is passed;
the second uploading module performs integrity and accuracy check on the DCP issuing package after uploading, and the second uploading module comprises:
comparing the file size and the hash value when the second uploading module receives one file in the DCP issuing package, if the file size and the hash value are consistent, continuing to receive the next file, if the file size and the hash value are inconsistent, deleting the received file, and notifying the first uploading module to upload again;
and after all the files in the DCP issuing package are received, comparing the size of the DCP issuing package with the number of the files contained in the DCP issuing package, judging that the uploading is successful if the sizes are consistent, deleting the received DCP issuing package if the sizes are inconsistent, and notifying a first uploading module to upload again.
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