CN109104636A - A kind of digital movie playing device and playback method - Google Patents
A kind of digital movie playing device and playback method Download PDFInfo
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- CN109104636A CN109104636A CN201710470506.2A CN201710470506A CN109104636A CN 109104636 A CN109104636 A CN 109104636A CN 201710470506 A CN201710470506 A CN 201710470506A CN 109104636 A CN109104636 A CN 109104636A
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Classifications
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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]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
- H04N21/4405—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving video stream decryption
-
- 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
- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
- H04N21/458—Scheduling content for creating a personalised stream, e.g. by combining a locally stored advertisement with an incoming stream; Updating operations, e.g. for OS modules ; time-related management operations
- H04N21/4586—Content update operation triggered locally, e.g. by comparing the version of software modules in a DVB carousel to the version stored locally
-
- 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
- H04N21/47—End-user applications
- H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
- H04N21/47202—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for requesting content on demand, e.g. video on demand
-
- 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
- H04N21/47—End-user applications
- H04N21/478—Supplemental services, e.g. displaying phone caller identification, shopping application
-
- 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
- H04N21/47—End-user applications
- H04N21/478—Supplemental services, e.g. displaying phone caller identification, shopping application
- H04N21/47815—Electronic shopping
-
- 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]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/637—Control signals issued by the client directed to the server or network components
- H04N21/6371—Control signals issued by the client directed to the server or network components directed to network
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Human Computer Interaction (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
A kind of digital movie playing device and playback method, described device includes: interactive module, processing module and interface module, wherein, the interactive module, it is used to interact with user, the operational order of user is executed, and implementing result is fed back into user, and the acquisition film source KDM instruction of user, broadcasting control instruction are passed into the processing module；The processing module, it is used to obtain film source KDM according to the instruction of request film source KDM, and URI, Token are assembled according to the uuid in film source KDM, call bottom-layer network library, obtain media file, and the media file of encryption is decrypted using decryption AES Key, decryption media fragment is played by hard decoder；The interface module is used to access the interface of hardware platform as the digital movie playing device.Digital movie playing device of the invention and playback method can consider film copyright, film format, playback terminal play right and playback terminal hardware simultaneously, playback equipment made correctly to play film.
Description
Technical field
The present invention relates to digital cinema technology fields, more particularly to a kind of digital movie playing device and playback method.
Background technique
Recently as the fast development of digital cinema technology, the hardware cost of digital movie shooting and producing is constantly reduced,
So that China's motion picture production and issuing amount are also continuously increased, correspondingly, the presentations of film are also varied, can both select
It selects in theater, also can choose and shown in network.And due to the surging developing state of internet, more and more films
Selection is shown on the internet.
And in the process of network projection, the problem of due to film copyright, film format the problem of, playback terminal play right
Limitation or the problem of playback terminal hardware etc., may all generate the phenomenon that playback equipment cannot correctly play film.
Summary of the invention
In order to solve the shortcomings of the prior art, the purpose of the present invention is to provide a kind of digital movie playing device and
Playback method can consider film copyright, film format, playback terminal play right and playback terminal hardware simultaneously, make
Playback equipment correctly plays film.
To achieve the above object, digital movie playing device provided by the invention, comprising: interactive module, processing module and
Interface module, wherein
The interactive module is used to interact with user, executes the operational order of user, and implementing result is fed back to use
Family, and the acquisition film source KDM instruction of user, broadcasting control instruction are passed into the processing module；The processing module,
For obtaining film source KDM according to the instruction of request film source KDM, and URI, Token are assembled according to the uuid in film source KDM, called
Bottom-layer network library is obtained media file, and the media file of encryption is decrypted using decryption AES Key, by solving firmly
Code plays decryption media fragment；The interface module is used to access hardware platform as the digital movie playing device
Interface.
Further, the interactive module includes: start unit and boundary element, wherein
The start unit is shown in the form of animation in the boundary element according to the enabled instruction of user and executes starting
Instruction；The boundary element executes the enabled instruction of the start unit, and uses BOX Style Design, shows the interaction
The main interactive interface of module.
Further, the main interactive interface of the boundary element includes: synchronous cinemas option, happy movie theatre option and TV
Option, wherein
The synchronous cinemas option upgrades for realizing terminal member, supplements with money, real-time booking, flat rate system membership function；It is described joyous
Happy movie theatre option opens media file, by the film of local valut in local realization for calling NFS Client service
Decoding plays；The TV option, for video and audio signal to be passed to the processing module.
Further, the processing module includes: instruction process unit, decryption and broadcast unit and data-reading unit,
Wherein,
Described instruction processing unit completes the request and acquisition of film source KDM；The decryption and broadcast unit, receive described in
The acquisition film source KDM instruction of interactive module transmitting plays control instruction, and KDM/DCP is called to decode special module, and booking is real-time
The film of legal encryption is played, and send the decoding unit to hardware platform to be decoded output clear stream data；The data
Reading unit will pass to the interface module from the received video and audio signal of the interactive module.
Further, further includes: service module, the service module are used to be the interactive module, the processing module
Necessary support service is provided, wherein the service of support include: Socket, NFSService, MediaPlayer,
AudioManager service.
Further, further includes: network upgrade module, the network upgrade module are played for updating the digital movie
The system file of device.
Further, the network upgrade module includes: download unit, judging unit and upgrade unit, wherein
The download unit is used to obtain upgrade information and upgrade package；The judging unit is used to be sentenced according to upgrade information
It is disconnected whether to have new version, and the download unit and the upgrade unit are controlled by judging result；The upgrade unit is used
In the current system file for updating the digital movie playing device according to upgrade package.
To achieve the above object, digital movie playback method provided by the invention, comprising the following steps:
Obtain film source KDM；URI, Token are assembled according to the uuid in film source KDM, calls bottom-layer network library, obtains media file；
Encrypted media file is decrypted using decryption AES Key；Decryption media fragment is played by hard decoder.
The film of local valut can locally realized decoding by digital movie playing device of the invention and playback method
It plays；It is able to use decryption AES Key the media file of encryption is decrypted, booking plays the film of legal encryption in real time；
The digital movie player that hardware platform can be called plays decryption media fragment by hard decoder；It can complete user account
Information inquiry, user supplements with money, film information obtains, download film, management system valut etc. operates；It can be realized terminal member's liter
Grade is supplemented with money, real-time booking, the functions such as flat rate system member.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that understand through the implementation of the invention.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, and with it is of the invention
Embodiment together, is used to explain the present invention, and is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the structural block diagram of digital movie playing device according to the present invention；
Fig. 2 is the startup interface screenshot of digital movie playing device according to the present invention；
Fig. 3 is the main interactive interface screenshot of digital movie playing device according to the present invention；
Fig. 4 is the flow chart of digital movie playback method according to the present invention.
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
Fig. 1 is the structural block diagram of digital movie playing device according to the present invention, as shown in Figure 1, number electricity of the invention
Shadow playing device 100, comprising: interactive module 110, processing module 120, service module 130, interface module 140 and network upgrade
Module 150, wherein
Interactive module 110 is used to interact with user, executes the operational order of user, and implementing result is fed back to use
Family, completes that user account information inquiry, user supplements with money, film information obtains, download film, management system valut etc. operates, with
And the acquisition film source KDM instruction of user, broadcasting control instruction are passed into processing module 120；Wherein, film source KDM includes film
Uuid and authorization correlation MetaDATA.
Interactive module 110 has start unit 111 and boundary element 112, wherein
Start unit 111, according to the enabled instruction of user, in boundary element 112 (for example, playing music simultaneously in the form of animation
Show Logo) it shows and executes enabled instruction.Fig. 2 is the startup interface screenshot of digital movie playing device according to the present invention.
Boundary element 112 executes the enabled instruction of start unit 111, and uses BOX Style Design, shows interaction mould
The main interactive interface of block 110.Fig. 3 is the main interactive interface screenshot of digital movie playing device according to the present invention, shown in Fig. 3
Main interactive interface in, have the options such as synchronous cinemas, happy movie theatre, TV, digital photo frame can by synchronous cinemas option
Realize terminal member upgrade, supplement with money, real-time booking, the functions such as flat rate system member；By happy movie theatre option, NFS can be called
Client service opens media file, and the film of local valut is locally being realized that decoding plays；By TV option,
Video and audio signal can be passed to processing module 120.
Processing module 120 is used to obtain film source KDM according to the instruction of request film source KDM, and according in film source KDM
Uuid assembles URI, Token, calls bottom-layer network library (can derive from system valut), obtains media file, uses decryption AES
The media file of encryption is decrypted in Key；And the digital movie of hardware platform (such as projection integration machine) can be called to broadcast
Device MediaPlayer is put, decryption media fragment is played by hard decoder, and by received video and audio signal via service
Module 130 passes to interface module 140.
Processing module 120 has instruction process unit 121, decryption and broadcast unit 122 and data-reading unit 123,
In,
Instruction process unit 121 completes the request and acquisition of film source KDM；
Decryption and broadcast unit 122 receive acquisition film source KDM instruction, broadcasting control instruction that interactive module 110 is transmitted, and
KDM/DCP is called to decode special module, booking (KDM Ticket) plays the film of legal encryption in real time, and will pass through
Clear stream data after demux send the decoding unit to hardware platform to be decoded output.
Wherein, when handling the parsing of DCP film packet, the intersection parsing comprising files such as ASSETMAP, CPL, PKL, KDM are secret
The parsing and decryption of key file and the decryption and decapsulation of MXF file.
Specifically, digital movie playing device 100(is also possible to the hardware platform belonging to it) playing a film
When, it needs to obtain and film is relative to the KDM code key file answered, this KDM code key file is also tied up with digital movie playing device 100
It is fixed, and define effective working days and the number (realization dependent on digital movie playing device 100) of broadcasting.Therefore it is obtaining
When KDM code key file, in the message of request, should the uuid containing film, the public key certificate of player, application effective working days,
Effective broadcasting time in working days.Due to being related to operation security, digital movie playing device 100 is needed through operator to service
Platform (being also possible to system valut) applies for KDM code key file, in addition the needs of reconciliation, should also include in code key request message
KDM order number, code key application time stamp etc..
Data-reading unit 123, will be from the received video and audio signal of interactive module 110 via service module 130
Pass to interface module 140.
Service module 130 is used to provide necessary support service for interactive module 110, processing module 120, such as
The service such as Socket, NFSService, MediaPlayer, AudioManager.
Interface module 140 is used to access the interface of hardware platform as digital movie playing device 100.
Preferably, interface module 140 is the SDK that Android system is directed to chipset MSD6A628VX exploitation, by calling phase
The interfaces such as HDMI, RJ45, USB, SPDIF, RCA of hardware platform of the accessible MSD6A628VX of the SDK of pass.
Network upgrade module 150 is used to update the system file of digital movie playing device 100.
Network upgrade module 150 has download unit 151, judging unit 152 and upgrade unit 153, wherein
Download unit 151 is used to obtain upgrade information and upgrade package；Wherein, upgrade package uses the form of incremental difference subpackage.
Judging unit 152 is used to judge whether there is new version according to upgrade information, and is controlled and downloaded by judging result
Unit 151 and upgrade unit 153.Wherein, the version in upgrade information containing newest upgrade file version number, current system file
Number and current system file the corresponding upgrade package of version number download link.
When version number's difference of newest upgrade file version number and current system file, judging unit 152 is then judged
There is new version, control download unit 151 is downloaded most according to the download link of the corresponding upgrade package of version number of current system file
It is new to upgrade the corresponding upgrade package of fileversion number, and control upgrade unit 153 and pass through upgrade package update digital movie playing device
100 current system file.
Upgrade unit 153 is used to update the current system file of digital movie playing device 100 according to upgrade package.
Fig. 4 is the flow chart of digital movie playback method according to the present invention, below with reference to Fig. 4, to number of the invention
Word film playback method is described.
In step 401, film source KDM is obtained；Wherein, film source KDM includes film source uuid and authorization correlation MetaDATA.
In step 402, URI, Token are assembled according to the uuid in film source KDM, call bottom-layer network library, obtains media text
Part；
In step 403, encrypted media file is decrypted using decryption AES Key；
In step 404, decryption media fragment is played by hard decoder.
Digital movie playing device of the invention and playback method are very suitable for the hardware platforms such as projection integration machine, especially
The hardware platform that it is suitable for being driven by intelligent chip group.
In one embodiment, projection integration machine is driven by intelligent chip group, obtains film source and piece from system valut
Source KDM, and the functions such as the decryption for completing film source is decapsulated, played, data report；System valut, for cloud valut or originally
Ground valut, the video format of film source be 1080p 29.76fps and encoded using H264, the audio format of film source be AAC,
16Bits, 48K frequency.
Wherein, the mode that cloud valut can be used that automatic or timing updates pushes film to local valut, the mode of push
For business CDN, or the mode of rental special line P2P.Preferably, shadow is pushed simultaneously by way of P2P at business development initial stage
Local valut of the piece to each user.Also, local valut can also share valut content by NFS.
Film in system valut uses 128 bit length keys, CBC(cipher block chaining) the AES encryption algorithm of mode
Its content is encrypted, and key is generated according to the digital certificate of digital movie player and transmits message, there is very high version
Weigh defencive function.
Preferably, projection integration machine is optimal for light in TaiWan, China using the one-wavelength laser projector being of relatively low cost
Electric Z28 one-wavelength laser projector, the type use 0.65 inch of dmd chip of TI DLP, Ricoh's camera lens, and brightness is up to 3000 streams
Bright, contrast 2000:1.
Preferably, projection integration machine carries out the broadcasting of film using the substandard MM interface of android of standard.
Preferably, intelligent chip group is chipset MSD6A628VX, and the Android development platform mode of the chipset is supported
The video format of H264 profile level 4.2,1080P 60fps.
The configuration of chipset MSD6A628VX is 2*512MB, dominant frequency 1.4G, Mali450 GPU and four core Cortex
A7 processor.Chipset MSD6A628VX is suitable for 4.4 system of Android, supports a plurality of types of hardware interfaces, such as 3D,
Wifi, RJ45 network interface, hot-swappable MOUSE, keyboard, USB flash disk etc..
Preferably, the output of 5.1 sound channel AC3 source codes is supported in the output of projection integration machine, is different from traditional tv to realize
Three-dimensional voice output.
Needed support in audio processing AAC source code output, but AAC not as good as Dolby AC3 it is general, therefore to AAC into
The real-time AC3 coding of row, and exported by optical fiber, coaxial source code.Unified configuration can be added in 4.4 system of Android, configured
Sound is source code output, PCM output and loudspeaker output.
The film of local valut can locally realized decoding by digital movie playing device of the invention and playback method
It plays；It is able to use decryption AES Key the media file of encryption is decrypted, booking plays the film of legal encryption in real time；
The digital movie player that hardware platform can be called plays decryption media fragment by hard decoder；It can complete user account
Information inquiry, user supplements with money, film information obtains, download film, management system valut etc. operates；It can be realized terminal member's liter
Grade is supplemented with money, real-time booking, the functions such as flat rate system member.
Those of ordinary skill in the art will appreciate that: the foregoing is only a preferred embodiment of the present invention, and does not have to
In the limitation present invention, although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art
For, still can to foregoing embodiments record technical solution modify, or to part of technical characteristic into
Row equivalent replacement.All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should all include
Within protection scope of the present invention.
Claims (8)
1. a kind of digital movie playing device characterized by comprising interactive module, processing module and interface module, wherein
The interactive module is used to interact with user, executes the operational order of user, and implementing result is fed back to use
Family, and the acquisition film source KDM instruction of user, broadcasting control instruction are passed into the processing module；
The processing module is used to obtain film source KDM according to the instruction of request film source KDM, and according to the uuid in film source KDM
URI, Token are assembled, bottom-layer network library is called, obtains media file, and using decryption AES Key to the media file of encryption
It is decrypted, decryption media fragment is played by hard decoder；
The interface module is used to access the interface of hardware platform as the digital movie playing device.
2. digital movie playing device according to claim 1, which is characterized in that the interactive module includes: start unit
And boundary element, wherein
The start unit is shown in the form of animation in the boundary element according to the enabled instruction of user and executes starting
Instruction；
The boundary element executes the enabled instruction of the start unit, and uses BOX Style Design, shows the interaction
The main interactive interface of module.
3. digital movie playing device according to claim 2, which is characterized in that the main interactive interface packet of the boundary element
It includes: synchronous cinemas option, happy movie theatre option and TV option, wherein
The synchronous cinemas option upgrades for realizing terminal member, supplements with money, real-time booking, flat rate system membership function；
The joy movie theatre option opens media file, by the film of local valut for calling NFS Client service
Locally realizing that decoding plays；
The TV option, for video and audio signal to be passed to the processing module.
4. digital movie playing device according to claim 1, which is characterized in that the processing module includes: instruction processing
Unit, decryption and broadcast unit and data-reading unit, wherein
Described instruction processing unit completes the request and acquisition of film source KDM；
The decryption and broadcast unit receive the acquisition film source KDM instruction of the interactive module transmitting, play control instruction,
And KDM/DCP is called to decode special module, booking plays the film of legal encryption in real time, and clear stream data are sent to hardware and are put down
The decoding unit of platform is decoded output；
The data-reading unit will pass to the interface mould from the received video and audio signal of the interactive module
Block.
5. digital movie playing device according to claim 1, which is characterized in that further include: service module, the service mould
Block is used to provide necessary supports for the interactive module, the processing module and service, wherein support service include: Socket,
NFSService, MediaPlayer, AudioManager service.
6. digital movie playing device according to claim 1, which is characterized in that further include: network upgrade module, the net
Network upgraded module is used to update the system file of the digital movie playing device.
7. digital movie playing device according to claim 6, which is characterized in that the network upgrade module includes: downloading
Unit, judging unit and upgrade unit, wherein
The download unit is used to obtain upgrade information and upgrade package；
The judging unit, is used to judge whether there is new version according to upgrade information, and by judging result control it is described under
Carrier unit and the upgrade unit；
The upgrade unit is used to update the current system file of the digital movie playing device according to upgrade package.
8. a kind of digital movie playback method, which comprises the following steps:
Obtain film source KDM；
URI, Token are assembled according to the uuid in film source KDM, calls bottom-layer network library, obtains media file；
Encrypted media file is decrypted using decryption AES Key；
Decryption media fragment is played by hard decoder.
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| CN201710470506.2A CN109104636A (en) | 2017-06-20 | 2017-06-20 | A kind of digital movie playing device and playback method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109743627A (en) * | 2019-01-16 | 2019-05-10 | 上海文广科技（集团）有限公司 | Playback method based on AVS+ Video coding digital movie packet |
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2017
- 2017-06-20 CN CN201710470506.2A patent/CN109104636A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109743627A (en) * | 2019-01-16 | 2019-05-10 | 上海文广科技（集团）有限公司 | Playback method based on AVS+ Video coding digital movie packet |
| CN109743627B (en) * | 2019-01-16 | 2021-11-09 | 上海文广科技（集团）有限公司 | Playing method of digital movie package based on AVS + video coding |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| CB03 | Change of inventor or designer information |
Inventor after: Gao Wufeng Inventor after: Cui Qiang Inventor after: Wei Jian Inventor after: Xu Ming Inventor before: Cui Qiang Inventor before: Gao Wufeng Inventor before: Zhang Wei |
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| CB03 | Change of inventor or designer information | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181228 |
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| WD01 | Invention patent application deemed withdrawn after publication |