CN106341740B - A kind of implementation method of multimedia content classification technique - Google Patents
A kind of implementation method of multimedia content classification technique Download PDFInfo
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- CN106341740B CN106341740B CN201510401550.9A CN201510401550A CN106341740B CN 106341740 B CN106341740 B CN 106341740B CN 201510401550 A CN201510401550 A CN 201510401550A CN 106341740 B CN106341740 B CN 106341740B
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- 238000000034 method Methods 0.000 title claims abstract description 36
- 230000005540 biological transmission Effects 0.000 claims abstract description 27
- 230000011664 signaling Effects 0.000 claims description 24
- 238000010008 shearing Methods 0.000 claims description 7
- 230000004069 differentiation Effects 0.000 claims description 6
- 239000012634 fragment Substances 0.000 claims description 6
- 201000004569 Blindness Diseases 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 239000002699 waste material Substances 0.000 abstract description 5
- 230000007246 mechanism Effects 0.000 abstract description 4
- 230000008859 change Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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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]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
- H04N21/845—Structuring of content, e.g. decomposing content into time segments
- H04N21/8456—Structuring of content, e.g. decomposing content into time segments by decomposing the content in the time domain, e.g. in time segments
-
- 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
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
- H04N21/23439—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements for generating different versions
-
- 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
-
- 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]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/85—Assembly of content; Generation of multimedia applications
- H04N21/854—Content authoring
- H04N21/8543—Content authoring using a description language, e.g. Multimedia and Hypermedia information coding Expert Group [MHEG], eXtensible Markup Language [XML]
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Computer Security & Cryptography (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
Abstract
The present invention provides a kind of implementation methods of multimedia content classification technique, and the important segment of multimedia content is marked when making multimedia content, and each segment is divided to different grades according to the significance level of multimedia file content.The present invention can be for multimedia content classification technique blank in existing multi-media protocol, caused by the problem of media content transmission is inefficient, waste of storage space, the associative classification to media content different editions on internet is realized in scalable transmission, storage and presentation mechanism by increasing media content, increase the management to multimedia service to control, the efficiency of transmission for improving multi-medium data simultaneously, reduces the waste of memory space.While giving user the right of media version is more independently selected to improve user experience, the classification of better multimedia content, transmission and storage scheme can be also provided to network operator.
Description
Technical field
The present invention relates to one kind to transmit in internet (Internet), stores and multimedia mechanism is presented, more specifically
Say, be related to it is a kind of based on multimedia content high-effective classifying transmission specific implementation.
Background technique
With the fast development of digital media technology, explosive surge is presented in the multimedia content generated in internet,
Especially fine definition, high-resolution video business extensively and profoundly, multimedia service to network bandwidth bring pressure further
It highlights.Existing multi-media protocol only focuses on being adapted between data and network mostly, by the service quality for guaranteeing network
(QoS) guarantee the quality of multimedia service, or carry out the adaptive adjustment of multimedia content for network quality, however it is right
Incidence relation in multimedia service between content itself but seldom considers.
Current some multi-media protocols are the associations that can establish between media data by signaling information, but for same
The different editions of media content, they are but all without providing corresponding relation mechanism.As a result, multimedia service caused by this way
Provider and consumer these contents are directly divided into different media datas, not only broken up the pass between media content
Conjuncted system is unfavorable for the management of media content, and identical data cell needs repeatedly repeatedly transmit in a network, reduce
The efficiency of data transmission.In addition, duplicate media content in occupation of a large amount of memory space, exists great in the utilization of resources
Waste.
Better method is the full release of media only to be stored in medium content server, user is according to their own needs
The media data of related versions is requested, server is by the mapping table of media version and media units to interior needed for user's transmission
Hold, if a version of user's certain buffered media, data cell lacking in other versions of system transmission media, together
When client do not need yet for repeat media units open up new memory space.For example, certain user has seen one before
The film clips of film or brief version, and cached, he wants to see the film of full version now, just only needs to request piece flower stencil
Originally the data cell or in brief version not having.Its difficulty is: system is difficult to know the correspondence of media units between different editions
Relationship, and lack relevant signaling mechanism guidance；Each media may have multiple versions different in size, how to these
Version is distinguished and is managed, and is also a problem to be solved.
Summary of the invention
For the defects in the prior art, the object of the present invention is to provide a kind of realization sides of multimedia content classification technique
Method solves the problems, such as that the classification of existing multimedia content can not refine and efficiency of transmission, waste of storage space.
To achieve the above object, the invention adopts the following technical scheme:
The present invention provides a kind of implementation method of multimedia content classification technique, the method specifically: is making more matchmakers
The important segment of multimedia content is marked when body file, according to the significance level of multimedia file content by each segment
Divide different grades；In user's viewing, selective broadcasting is carried out to multimedia content according to these grades, rather than blindly
Random selection；A MUR message file is newly defined, for describing multimedia file and different editions content, mpu_seq_
Corresponding relationship between number, level_list, mpu_seq_number are the tag fields in MPU, and level_list is
The set of mpu_seq_number, the video with different editions are one-to-one relationships.
Preferably for a certain multimedia content, be cut into multiple MPU fragments, content classification at after different editions with
There are corresponding relationships between mpu_seq_number；Newly define a MUR message file, for describe multimedia file from it is different
Corresponding relationship between release content, mpu_seq_number, level_list, wherein according to level_list array from it is different
The rule of correspondence of release content time is different, is divided into two types:
It is one-to-one between the content and level_list of different editions in Class1；
In type 2, the content of different editions is the combination of different level_list；
Differentiation transmission is carried out to multimedia file according to the content of MUR message file in Class1 and type 2.
Preferably, the Class1: level_list is composed of different MPU, and one between different video version
One is corresponding；When user needs more segments, server only needs the MPU of transmission user's missing.
Preferably, the type 2:level_list is composed of different MPU, and each level_list [] it
Between unfolded MPU occur, different editions are composed of different level_list；When user has watched shearing version view
When wanting to see full version video after frequency, it is only necessary to which differentiation transmits the MPU fragment that specific level_list [] is included.
Compared with prior art, the present invention have it is following the utility model has the advantages that
The present invention can for multimedia content classification technique blank in existing multi-media protocol, caused by media content pass
The problem of defeated inefficient, memory space rent, passes through the scalable transmission for increasing media content, storage and mechanism is presented and realizes
To the associative classification of media content different editions on internet, increases the management to multimedia service and control, while improving more matchmakers
The efficiency of transmission of volume data reduces the waste of memory space.Giving user more independently selects the right of media version to improve use
While family is experienced, better multimedia content classification, transmission and storage scheme can be also provided to network operator.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon:
Fig. 1 is the corresponding relationship after different editions video between mpu_seq_number；
Fig. 2 is the flow chart for constructing and transmitting MUR file in one embodiment of the invention.
Specific embodiment
The present invention is described in detail combined with specific embodiments below.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection scope.
User tends not to directly continuously play whole section of video, can in most cases shift to an earlier date F.F. when watching video
Perhaps then this section of video of the browsing of great-jump-forward decides whether according to the hobby of oneself or acceptable length of the video time
Completely played.When user's great-jump-forward plays, it is most likely that because randomly selected hopping time point is improper, and miss
The pith of video content.
In response to this problem, can effective solution by the following method, improve user experience.Content supplier regards in production
It can adopt when frequency and the important segment of video content is marked by some way, or further, according to video content
Each video clip is divided different grades by significance level.In user's viewing, selectivity can be carried out according to these grades
It plays, rather than the random selection of blindness.
For example, film-maker can provide multiple and different version videos to Mr. Yu's movie program.First version video is essence
Simplified version film clips, duration 5 minutes, the inside only included the excellent picture in film；Second version video is shearing version, and duration 30 is divided
Clock, the inside only include the important scene of photoplay plot；Third version video is full version, and duration 120 minutes, the inside was wrapped
Include complete plot；4th version is extended edition, and duration 150 minutes, the inside included in addition to complete plot
Expansion content, such as behind-the-scene footage etc..
For a certain multimedia resource, it is assumed that it is asset1, is cut into multiple MPU (media processing
Units) fragment, content classification at different editions video after corresponding relationship between mpu_seq_number it is as shown in Figure 1.
Mpu_seq_number is the tag field in MPU, as shown in Figure 1, it is assumed that some video is divided into mpu_seq_number points
It is not 0 to 11 MPU fragment, video of the different mpu_seq_number combined sequences at different editions, such as scaled-down version view
Frequency is then made of the MPU that mpu_seq_number is 1 and 9.
It transmits and presents in order to flexible differentiation, newly define a MUR (Media Unit Relationship)
Message file, it is corresponding between media resource and different editions video, mpu_seq_number, level_list etc. for describing
Relationship.It is wherein different according to level_list array and the rule of correspondence of different editions video time, and two kinds can be divided into
Type.It is one-to-one between the video and level_list of different editions in Class1；In type 2, different editions
Video be different level_list combination.
Below according to above example, illustrate the content of MUR message file in Class1 and type 2 respectively, and how to carry out
Differentiation transmission, there are also how using the mediaSrc attribute in CI file to be flexibly in different editions video in client
It is existing.
Class1:
Level_list is composed of different mpu, and is corresponded between different video version, the rule of correspondence
As shown in the table.
This rule of correspondence and Fig. 1 are exact matchings, but Fig. 1 is an example.For different examples, corresponding rule
Can also then it change.In next type 2 is also same reason.
To improve efficiency of transmission, when user needs more video clips, server only needs transmission user's missing
MPU.For example, it is assumed that wanting to continue to watch level_list [j] after the corresponding video of level_list [i] is finished watching in user's program request
Corresponding video, wherein 0≤i < j≤3.Because user has locally stored whole MPU that level_list [i] is included, institute
It only needs to continue with server to push ΔijThe MPU for including in=level_list [j]-level_list [i].
In client, user is according to local level_list [i] and received ΔijIt reformulates level_list [j].
So the value of the meiaSrc attribute in its CI file for different editions video is as shown in the table.
Type 2:
Unlike Class1, level_list is composed of different MPU, and each level_list [] it
Between unfolded MPU occur.Different video version is composed of different level_list, the rule of correspondence such as following table
It is shown.
As can be seen from the above table, scaled-down version video is made of level_list [0], shears version video by level_list
[0] with level_list [1] form, and level_list [2] be then full version and shearing version video difference, extended edition be by
Four level_list compositions.So when wanting to see full version video after user has watched shearing version video, it is only necessary to difference
Change the MPU fragment that transmission level_list [2] is included.The meiaSrc of different editions video is directed in CI file in type 2
The value of attribute is as shown in the table.
MUR message file contains the important information of content classification, gives describe above.How these important letter is transmitted
Breath, can there is different methods, signaling unit such as new by definition, signaling file, signaling message, descriptor, or
The head information etc. of transmission packet is added, MUR institute can be transmitted and used by different methods according to the difference of implementation method
The information of description.The present invention proposes four schemes as use-case for the transmission mode of MUR message file, and MUR information is added
The method entered in signaling information includes but is not limited to following methods:
Mode 1 is added to MUR information in existing CI file
The function of CI file is to instruct the presentation of media resource, and level_list is also the relevant information of resolving resource, because
This can be added to level_list content in existing CI file.Receiving end needs support when parsing CI file
The parsing of level_list information.
Mode 2, the MUR file for increasing a description MUR information in signaling information
According to thinking identical with mode 1, can also define one with the file of MUR information is described as CI files classes,
The advantages of this method is not need to be modified CI in existing protocol.The MUR file of generation can be with CI and html file
Transmission side by side, in the way of transmitting CI file in agreement, the suitable transmission mode of MUR Documents Comparison is placed on MPI table
Middle a part transmission as signaling message.
MUR file is added in MPI table, description section of the part for needing to change in PI_content, PI_
The value of content_count adds the type of 1, PI_content_type field description MUR file, can select according to the actual situation
The file format for being suitble to description MUR information is selected, PI_content_type_length value is the length of file type, PI_
Content_type_length_byte value is the type of MUR file；PI_content_name_length value is MUR file
The length of name, PI_content_name_byte value are the value of the name of MUR file；PI_content_descriptores_
Length and PI_content_descriptors_byte is the length and content of the description information of MUR file respectively, currently may be used
Think sky, expands after remaining；PI_content_length and PI_content_byte is the length of MUR file respectively and interior
Hold.
According to it is described above by MUR file be written MPI table in after, so that it may MUR information is sent out.
Mode 3, the descriptor for increasing a description MUR information
Some descriptive descriptor are defined in the signaling message of existing MMT protocol definition, descriptor is
Signaling moiety is used to define the descriptive information of some fields or function in MMT.Such as dependency descriptor and
Therefore MPU_timestamp_descriptor can define the descriptor of a description MUR information,
The level information of mpu can be described in descriptor.There are asset_descriptors field, Ke Yigen in MP table
According to needing that correlation descriptor is added in asset_descriptors, when the level for needing to describe mpu in the signaling believes
When breath, so that it may be realized by the way that the descriptor is added in asset_descriptors.
Mode 4, the signaling table for increasing a description MUR information
According to the above thinking, a table can also be further added by other than existing several signaling tables in signaling information
It is specifically used to describe MUR information.Description MUR information is just generated plus specific head after the table of generation description MUR information
Message, message the and PA message, MPI message, MP messae, CRI message etc. form new together
Signaling information transmission.Relevant level_list information can be obtained in parsing after receiving end receives signaling message.
More clearly to describe implementation method proposed by the present invention, Fig. 2 is to describe method construct according to above Class1
MUR file, and MUR file, citing one concrete implementation process of description are transmitted using above mode 2.It can be seen by Fig. 2
Out, when receiving end logs in VoD service, transmitting terminal can send signaling information, and receiving end passes through the PI_ judged in MPI table
Content_type_length_byte field receives MUR, CI and html file, while will be updated and generate local maintenance
MPU storing data library MySQL；When user request scaled-down version video when, receiving end by check MUR file find out scaled-down version and
Level_list [0] is corresponding, and finding out corresponding mpu_seq_number is 1,9, these MPU of client request and deposits at this time
Storage is locally playing to user, and updates local data base.When user then requests shearing version video, by checking MUR
File and local data base obtain local not stored MPU from transmitting terminal, these MPU are level_list [1]-level_
List [0] obtained MPU, wherein mpu_seq_number is 4,6.Receiving end receive after 4,6 again be locally stored
1,9 are reassembled as shearing version video.
It is heretofore described by taking MMT as an example, illustrate proposed solution, but these schemes equally can be used for
Other Document encapsulations, in Transmission system and agreement.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring substantive content of the invention.
Claims (6)
1. a kind of implementation method of multimedia file content classification technology, which is characterized in that when making multimedia file to more
The important segment of contents of media files is marked, and each segment is divided difference according to the significance level of multimedia file content
Grade；In user's viewing, selective broadcasting carried out to multimedia file content according to these grades, rather than blindness with
Machine selection；Newly define a MUR(Media Unit Relationship) message file, for describe multimedia file with not
With the content of version, the corresponding relationship between mpu_seq_number, level_list, mpu_seq_number is MPU
Tag field in (media processing units) fragment；
For a certain multimedia file content, be cut into multiple MPU fragments, content classification at after different editions with mpu_seq_
There are corresponding relationships between number；A MUR message file is newly defined, for describing in multimedia file and different editions
Appearance, the corresponding relationship between mpu_seq_number, level_list, wherein according to level_list array and different editions
The rule of correspondence of content time is different, is divided into two types:
It is one-to-one between the content and level_list of different editions in Class1；
In type 2, the content of different editions is the combination of different level_list；
Differentiation transmission is carried out to multimedia file according to the content of MUR message file in Class1 and type 2；
In the Class1: level_list is composed of different MPU fragments, and a pair between different video version
It answers；
When user needs more segments, server only needs the MPU fragment of transmission user's missing；
In the type 2: level_list is composed of different MPU fragments, and is not had between each level_list
The MPU fragment of overlapping occurs, and the content of different editions is composed of different level_list；
When wanting to see full version video after user has watched shearing version video, it is only necessary to which differentiation transmits corresponding level_list
The MPU fragment for being included.
2. the implementation method of multimedia file content classification technology according to claim 1, which is characterized in that the MUR
Message file contains the information of content classification, transmits these important letters by the method that MUR information is added in signaling information
Breath.
3. the implementation method of multimedia file content classification technology according to claim 2, which is characterized in that described to incite somebody to action
The method in signaling information is added in MUR information, refers to: MUR information is added to the existing file for instructing media resource to present
In.
4. the implementation method of multimedia file content classification technology according to claim 2, which is characterized in that described to incite somebody to action
The method in signaling information is added in MUR information, refers to: increasing the MUR information text of a description MUR information in signaling information
Part.
5. the implementation method of multimedia file content classification technology according to claim 2, which is characterized in that described to incite somebody to action
The method in signaling information is added in MUR information, refers to: increasing the descriptor of a description MUR information, descriptor is
Signaling moiety is used to define the descriptive information of some fields or function in MMT.
6. the implementation method of multimedia file content classification technology according to claim 2, which is characterized in that described to incite somebody to action
The method in signaling information is added in MUR information, refers to: increasing the signaling table of a description MUR information.
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| CN201510401550.9A CN106341740B (en) | 2015-07-09 | 2015-07-09 | A kind of implementation method of multimedia content classification technique |
| KR1020177024204A KR101988454B1 (en) | 2015-02-13 | 2016-02-02 | Realization method and application of multimedia contents presentation |
| CA3004644A CA3004644C (en) | 2015-02-13 | 2016-02-02 | Implementing method and application of personalized presentation of associated multimedia content |
| KR1020197003889A KR102378107B1 (en) | 2015-02-13 | 2016-02-02 | Method for implementing personalized presentation of associated multimedia content, and application |
| JP2017541331A JP6567064B2 (en) | 2015-02-13 | 2016-02-02 | Realization method of customized display of related multimedia contents and its application |
| US15/550,789 US10433029B2 (en) | 2015-02-13 | 2016-02-02 | Implemental method and application of personalized presentation of associated multimedia content |
| PCT/CN2016/073167 WO2016127862A1 (en) | 2015-02-13 | 2016-02-02 | Method for implementing personalized presentation of associated multimedia content, and application |
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| US20050154987A1 (en) * | 2004-01-14 | 2005-07-14 | Isao Otsuka | System and method for recording and reproducing multimedia |
| JP2011029948A (en) * | 2009-07-27 | 2011-02-10 | Hitachi Consumer Electronics Co Ltd | Content processing apparatus |
| US9445135B2 (en) * | 2010-09-17 | 2016-09-13 | Futurewei Technologies, Inc. | Method and apparatus for scrub preview services |
| CN102447818A (en) * | 2010-09-30 | 2012-05-09 | 上海维阔信息技术有限公司 | Playing method of video copyright protection and classification watching |
| KR20120119790A (en) * | 2011-04-22 | 2012-10-31 | 삼성전자주식회사 | Method and apparatus for media data transmission, and method and apparatus for media data reception |
| US9380282B2 (en) * | 2012-03-26 | 2016-06-28 | Max Abecassis | Providing item information during video playing |
| US8887215B2 (en) * | 2012-06-11 | 2014-11-11 | Rgb Networks, Inc. | Targeted high-value content in HTTP streaming video on demand |
| CN104767964B (en) * | 2014-01-08 | 2018-09-18 | 株式会社日立制作所 | The method and its device, video monitoring system of video storage control and optimization |
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