CN101854525B - Partitioned-push file distribution and fast filtering method - Google Patents
Partitioned-push file distribution and fast filtering method Download PDFInfo
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- CN101854525B CN101854525B CN 200910081397 CN200910081397A CN101854525B CN 101854525 B CN101854525 B CN 101854525B CN 200910081397 CN200910081397 CN 200910081397 CN 200910081397 A CN200910081397 A CN 200910081397A CN 101854525 B CN101854525 B CN 101854525B
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Abstract
The invention provides a partitioned-push file distribution and fast filtering method, comprising the following steps that: business material files are classified, and the integration of each type of the business material files corresponds to a material business package; task lists matched with the ID of a terminal device are established, and the integration of all the files of the task lists corresponds to a task package; the material business package and the task package are respectively distributed with independent TS package PID to conduct transmission, and a PMT is internally provided with a private stream_type value so as to distinguish the task package from the material business package; when in receiving, a terminal analyzes the PMT, determines the TS package PID of the task package according to the stream_type value, receives the task package and finds out the task list matched with the ID of the terminal device; and the task package is analyzed, the filtration is conducted at a TS layer according to the TS package PID receiving terminal indicated in the task list, and the corresponding material business package is received. The invention can lead the receiving terminal on the TS layer to conduct fast filtration on the pushed material business package according to the indication of the task lists.
Description
Technical field
The present invention relates to the multimedia push technical field, particularly a kind of file distributing of partitioned-push and fast filtering method.
Background technology
Pushing away and broadcasting (Push VOD) is the value-added service of a kind of new digital TV.It is based on the data carousel technology, utilizes idle broadcast channel, is not hindering TV user normally to watch under the prerequisite of program, in various data files (video/audio file) local hard drive that " propelling movement " carries to the subscriber computer top box automatically.The user can select the meaning period in office to read data by digital TV set-top box from local hard drive, to enjoy the various expansion service contents that digital-TV operator provides.Because data file leaves subscriber's local in, large-sized DVD movie file can be pushed to TV user, has guaranteed that namely video quality has made things convenient for the user to watch at any time again.Push away broadcast mode and saved channel resource, make the flow on the network steady and controlled; Simplify the task amount of server end, can efficiently send data.Satisfy the needs of present domestic Digital Television integrated service expansion, further strengthened the competitiveness of cable digital TV and IPTV etc.
But the development of hard-disk storage technology is depended on the basis of push technology, compares with the memory capacity of transmitting terminal server magnanimity, and the hard disc storage capacity of set-top box can not satisfy the demand of push technology fully at present.This wants to provide more abundanter contents of activating business for operator is restrictions greatly.And, for all propelling movement contents, all want pushed and be stored in the set-top box, and no matter whether the user needs, this also is a kind of great waste to resource undoubtedly.
Summary of the invention
The objective of the invention is to, a kind of file distributing and fast filtering method of partitioned-push is provided.
The file distributing of partitioned-push of the present invention and fast filtering method comprise the following steps:
Steps A: in advance professional material file is classified the corresponding material business packet of the set of the professional material file of each class;
Step B: according to the difference of terminal equipment ID, set up the task list that is complementary with terminal equipment ID, all task lists are packaged into one road independent task bag separately and encapsulate;
Step C: each material business packet and task bag distribute one independently TS bag PID transmit, and privately owned stream_type value is set in order to distinguish task bag and professional material package in Program Map Table PMT;
Step D: the TS bag after will encapsulating is multiplexed into the output of 1 road TS stream;
Step e: terminal is resolved Program Map Table PMT when receiving, and according to value identification mission bag and the material business packet of stream_type, and sets up the mapping relations that task bag, material business packet and TS wrap PID;
Step F: collect and resolve the task bag, therefrom find the task list that is complementary with terminal equipment ID;
Step G: resolve task list, determine the TS bag PID at the material business packet place that this machine need be resolved;
Step H: according to TS bag PID, receiving equipment directly filters at the TS layer, collects corresponding material business packet.
Wherein, in described steps A, the corresponding material business packet of the set of the professional material file of each class, different material business packet is distinguished according to the Packet Identifier pid information of TS bag.
Wherein, in described step B, described PID, which road material business packet what be used for to determine that receiving terminal will filter is.
Wherein, in described step C, according to the compatible MPEG-2/ of Motion Picture Experts Group digital video broadcasting DVB standard, in described Program Map Table PMT by privately owned stream_type value being set in order to distinguish material business packet and task bag.
In addition, among step B and the step C, described data encapsulation is object carousel OC/ data carousel DC data encapsulation.
In addition, in described step H, receiving equipment filters at the TS layer, collect corresponding material business packet after, with the splicing of the bag of the TS after filtering payload, complete resolution data recovers material file.
The invention has the beneficial effects as follows: according to file distributing and the fast filtering method of partitioned-push of the present invention, by at front end professional material file being classified and being packaged into the material business packet, set up the task list corresponding with device id for each terminal simultaneously, make receiving terminal can filter the material business packet that pushes according to the indication in the task list at the TS layer, thereby realized pushing away file distributing and filtration under the pattern of broadcasting.
Description of drawings
Fig. 1 is the professional encapsulation of front end data;
Fig. 2 receives handling process for terminal.
Embodiment
Below, 1～2 file distributing and the fast filtering method of describing partitioned-push of the present invention in detail with reference to the accompanying drawings.
Specific implementation of the present invention comprises following 2 aspects.
1, the professional encapsulation of front end data
As shown in Figure 1, the encapsulation of front end data business may further comprise the steps:
Step 11: in advance professional material file is classified the corresponding material business packet of the set of the professional material file of each class.
Wherein, sorting technique is determined by front end, the corresponding material business packet of the set of the professional material file of each class, and the Packet Identifier that different material business packet is wrapped according to TS (Packet Identification, PID) distinguish by information.
Step 12: according to the difference of terminal equipment ID, set up the task list that is complementary with terminal equipment ID, all task lists be packaged into separately one road independent task bag carry out object carousel (Object Carousel, OC)/data carousel (Data Carousel, DC) encapsulation.
Wherein, task list comprises material task package informatin (being PID), version information and broadcast information, wherein, PID, which road material business packet what be used for to determine that receiving terminal will filter is, all material file that this material business packet is carried all will be downloaded.Task list is as shown in table 1 for example, and task list is text, can generate filename Task_12345678.txt automatically by the manual generation of text edit software or by software.Wherein " 12345678 " are the device id represented of 16 systems number, totally 32 bits.This file uses to terminal specially.
Table 1
Task_12345678.txt
[task list]
0x0200
0x0201
0x0202
[version]
v1.0.20090305
Wherein, [task list] mark 0x0200 etc. is TS bag PID; [version] mark v1.0.2009030 indicates version information, and terminal judges whether that according to version number needs upgrade, wherein the date of 20090305 expression generations.
Step 13: according to (the Moving Picture Experts Group of compatible Motion Picture Experts Group, MPEG)-2/ digital video broadcasting (DVB) standard, at Program Map Table (Program Map Table, privately owned stream_type value is set in order to distinguishing task bag and material business packet PMT), and sets up the corresponding relation of the TS bag PID of task bag, material business packet;
Step 14: the uniform data encapsulation after the OC/DC encapsulation is multiplexed into the back output of one road TS stream.
2, terminal receives and handles
As shown in Figure 2, terminal receives to handle and comprises following flow process:
Step 21: Program Map Table PMT information is resolved in the start back, sets up the mapping relations of TS bag PID and material business packet, task bag;
Step 22: according to the value of stream_type among the PMT, the TS bag PID at the bag place that sets the tasks collects the task bag, therefrom finds the task list that is complementary with terminal equipment ID;
Step 23: resolve task list, determine the TS bag PID at the material business packet place that this machine need be resolved;
Step 24: according to TS bag PID, receiving equipment directly filters at the TS layer, collects corresponding material business packet;
Step 25: the TS bag payload splicing after will filtering, complete parsing OC/DC data are recovered material file.
In sum, file distributing and fast filtering method according to partitioned-push of the present invention, the pmt table of MPEG compatible-2 standard, TS stream meets ISO/IEC 13818-1 standard, every receiving terminal has unique device id (32 bit), by at front end professional material file being classified and being packaged into the material business packet, set up the task list corresponding with device id for each terminal simultaneously, make receiving terminal can filter the material business packet that pushes according to the indication in the task list at the TS layer, thereby realized pushing away file distributing and filtration under the pattern of broadcasting.
More than be in order to make those of ordinary skills understand the present invention; and the detailed description that the present invention is carried out; but can expect; in not breaking away from the scope that claim of the present invention contains, can also make other variation and modification, these variations and revising all in protection scope of the present invention.
Claims (6)
1. the file distributing of a partitioned-push and fast filtering method is characterized in that, comprise the following steps:
Steps A: in advance professional material file is classified the corresponding material business packet of the set of the professional material file of each class;
Step B: according to the difference of terminal equipment ID, set up the task list that is complementary with terminal equipment ID, all task lists are packaged into one road independent task bag separately and encapsulate;
Step C: each material business packet and task bag distribute one independently TS bag PID transmit, and privately owned stream_type value is set in order to distinguish task bag and professional material package in Program Map Table PMT;
Step D: the TS bag after will encapsulating is multiplexed into the output of 1 road TS stream;
Step e: terminal is resolved Program Map Table PMT when receiving, and according to value identification mission bag and the material business packet of stream_type, and sets up the mapping relations that task bag, material business packet and TS wrap PID;
Step F: collect and resolve the task bag, therefrom find the task list that is complementary with terminal equipment ID;
Step G: resolve task list, determine the TS bag PID at the material business packet place that this machine need be resolved;
Step H: according to TS bag PID, receiving equipment directly filters at the TS layer, collects corresponding material business packet.
2. the file distributing of partitioned-push as claimed in claim 1 and fast filtering method, it is characterized in that, in described steps A, the corresponding material business packet of the set of the professional material file of each class, different material business packet is distinguished according to the Packet Identifier pid information of TS bag.
3. the file distributing of partitioned-push as claimed in claim 2 and fast filtering method is characterized in that, in described step B, and described PID, which road material business packet what be used for to determine that receiving terminal will filter is.
4. as file distributing and the fast filtering method of each described partitioned-push in the claim 1 to 3, it is characterized in that, in described step C, according to the compatible MPEG-2/ of Motion Picture Experts Group digital video broadcasting DVB standard, in described Program Map Table PMT by privately owned stream_type value being set in order to distinguish material business packet and task bag.
5. as file distributing and the fast filtering method of each described partitioned-push in the claim 1 to 3, it is characterized in that among step B and the step C, described data encapsulation is object carousel OC/ data carousel DC data encapsulation.
6. as file distributing and the fast filtering method of each described partitioned-push in the claim 1 to 3, it is characterized in that, in described step H, receiving equipment filters at the TS layer, after collecting corresponding material business packet, with the TS bag payload splicing after filtering, complete resolution data recovers material file.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200910081397 CN101854525B (en) | 2009-04-03 | 2009-04-03 | Partitioned-push file distribution and fast filtering method |
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| CN 200910081397 CN101854525B (en) | 2009-04-03 | 2009-04-03 | Partitioned-push file distribution and fast filtering method |
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| CN101854525B true CN101854525B (en) | 2013-07-10 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101990128A (en) * | 2010-10-15 | 2011-03-23 | 深圳市同洲电子股份有限公司 | Object carousel method and device as well as object carousel downloading method and device |
| CN102143399B (en) * | 2011-03-31 | 2013-09-04 | 深圳创维数字技术股份有限公司 | Method, server and system for testing limit of channel storage of set-top box |
| CN103686212B (en) * | 2012-09-19 | 2016-12-21 | 国家广播电影电视总局广播科学研究院 | Data push method, propelling movement front end system and terminal unit and digital television system |
| CN103945266B (en) * | 2014-04-17 | 2018-05-15 | 深圳创维数字技术有限公司 | A kind of method, apparatus and system for handling advertisement |
| CN104935960B (en) * | 2015-06-09 | 2019-01-15 | 四川长虹电器股份有限公司 | The method of local media resource and DTV seamless connection |
| CN112328325A (en) * | 2020-11-06 | 2021-02-05 | 深圳壹账通智能科技有限公司 | Execution method and device of model file, terminal equipment and storage medium |
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| WO2007064134A1 (en) * | 2005-12-02 | 2007-06-07 | Alticast Corp. | Method for the efficient provision of pushed contents to users through digital broadcasting |
| CN101034995A (en) * | 2006-03-08 | 2007-09-12 | 北京汉辰科技有限公司 | Internet personal video recording system and its terminal |
| CN101278271A (en) * | 2005-09-29 | 2008-10-01 | 北京韩纳儒信息传媒有限公司 | Method and system for the efficient management of video on demand service |
| CN101366235A (en) * | 2006-01-09 | 2009-02-11 | 汤姆森许可贸易公司 | Multimedia content delivery method and system |
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| CN101278271A (en) * | 2005-09-29 | 2008-10-01 | 北京韩纳儒信息传媒有限公司 | Method and system for the efficient management of video on demand service |
| WO2007064134A1 (en) * | 2005-12-02 | 2007-06-07 | Alticast Corp. | Method for the efficient provision of pushed contents to users through digital broadcasting |
| CN101366235A (en) * | 2006-01-09 | 2009-02-11 | 汤姆森许可贸易公司 | Multimedia content delivery method and system |
| CN101034995A (en) * | 2006-03-08 | 2007-09-12 | 北京汉辰科技有限公司 | Internet personal video recording system and its terminal |
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