CN105072458A - Method for realizing time shifting in live broadcasting process of set top box based on HLS protocol - Google Patents
Method for realizing time shifting in live broadcasting process of set top box based on HLS protocol Download PDFInfo
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- CN105072458A CN105072458A CN201510436628.0A CN201510436628A CN105072458A CN 105072458 A CN105072458 A CN 105072458A CN 201510436628 A CN201510436628 A CN 201510436628A CN 105072458 A CN105072458 A CN 105072458A
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- 238000000034 method Methods 0.000 title claims abstract description 36
- 230000006870 function Effects 0.000 claims abstract description 14
- 230000000694 effects Effects 0.000 claims abstract description 10
- 230000036632 reaction speed Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 230000003044 adaptive effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000366 juvenile effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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]
- H04N21/20—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
- H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
- H04N21/2387—Stream processing in response to a playback request from an end-user, e.g. for trick-play
-
- 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
- H04N21/47217—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 controlling playback functions for recorded or on-demand content, e.g. using progress bars, mode or play-point indicators or bookmarks
-
- 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
- H04N21/643—Communication protocols
-
- 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
- H04N21/65—Transmission of management data between client and server
- H04N21/658—Transmission by the client directed to the server
- H04N21/6587—Control parameters, e.g. trick play commands, viewpoint selection
-
- 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
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- 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
The invention discloses a method for realizing time shifting in a set top box live broadcast process based on an HLS protocol, which comprises the steps of constructing an M3U8 service by utilizing a server side, and establishing a list in a memory for regularly acquiring live broadcast TS slice information in a database; selecting a set-top box player to play a time shifting function, moving a progress pointer to a corresponding position by using a remote controller, calculating time shifting time according to the total time length, and sending a time shifting request to an M3U8 server by using the time shifting time length as a parameter by the set-top box; after receiving the request, the server analyzes the parameters to obtain the time shifting duration, then queries a TS file corresponding to the duration in a memory, generates a content character string of an M3U8 file according to an M3U8 live broadcast standard, returns the content character string to the set top box in a file stream mode to provide downloading, and after obtaining the M3U8 file, the set top box obtains a corresponding TS slice from a specified stream pushing server in the M3U8 file and automatically plays the TS slice according to an HLS protocol to achieve the time shifting effect.
Description
Technical field
The present invention discloses a kind of method realizing time shift in the live process of Set Top Box, belongs to video communication applications field, specifically a kind of method realizing time shift in the live process of Set Top Box based on HLS protocol.
Background technology
Live is at the scene along with the generation of event, development process make and broadcast the broadcast mode of TV programme simultaneously, is the broadcast mode fully demonstrating radio and television media transmission advantage.Program request utilizes interactive television formula VOD system, plays corresponding video frequency program according to the needs of user, fundamentally changes the deficiency that user's past passive formula sees TV.A kind of new business that time shift is live combining with program request and is formed is supplementing of live broadcast service.User is when watching programme televised live, and midway can be suspended, and can continue to watch from time-out later, in order to avoid miss some important plot.Current time-shifting function is that Play Server gets off section directory, when continuing to play, then adopts unicast fashion to replay the program under record.For live program, the flow medium live system with time-shifting function can see program in any time afterwards, not necessarily wants synchronous, can suspend at any time, play, but often current time-shifting function reaction speed when sending time shifting request is slow, once number of requests is large, after causing network congestion then more to exacerbate the mistake of time shift, even ask unsuccessful, cannot time shift be completed, cause user to use time-shifting function, complete live-experience, affect viewing effect.The invention provides a kind of method realizing time shift in the live process of Set Top Box based on HLS protocol, be applicable to video field, thus the object reached to program time shifting in live process, and reaction speed is fast, even if number of requests is large, also do not affect the transmission and reception of time shifting request, user can use time-shifting function smoothly, complete live-experience, improve viewing effect.
(the dynamic code rate adaptive technique of HTTPLiveStreaming, Apple, HLS protocol is the dynamic code rate adaptive technique of Apple to HLS protocol.Be mainly used in the audio frequency and video service of PC and Apple terminal.Comprise the index file of a m3u8, TS media slicing file and key encrypt string file.
Summary of the invention
The present invention is directed to current time-shifting function reaction speed when sending time shifting request slow, once number of requests is large, after causing network congestion then more to exacerbate the mistake of time shift, even ask unsuccessful, time shift cannot be completed, user is caused to use time-shifting function, complete live-experience, affect the problem of viewing effect, a kind of method realizing time shift in the live process of Set Top Box based on HLS protocol is provided, based on HLS protocol, be applicable to video field, thus the object reached to program time shifting in live process, and reaction speed is fast, even if number of requests is large, the transmission and reception of time shifting request are not affected yet, user can use time-shifting function smoothly, complete live-experience, improve viewing effect.
The concrete scheme that the present invention proposes is:
A method for time shift in the live process of Set Top Box is realized based on HLS protocol, based on HLS protocol,
Utilize server end to build M3U8 service, in internal memory, set up list, be used for live TS slice information in timing acquisition database;
Time live, select Set Top Box player plays time-shifting function, the F.F. that uses a teleswitch, rewind button, by progress pointer movement to relevant position, according to total duration, shift time during calculating, time shift duration as parameter, is sent time shifting request to M3U8 server by Set Top Box;
After server receives request, analytic parameter, get time shift duration, in internal memory, then inquire the TS file that this duration is corresponding, server is according to the live standard of M3U8, generate M3U8 file content character string, return to Set Top Box with the form of document flow and download is provided, after Set Top Box gets M3U8 file, obtain corresponding TS to the stream pushing server that M3U8 document is fixed and cut into slices, and automatically play according to HLS protocol, realize time shift effect.
Describedly in internal memory, set up list, successively according to channel designation, programm name, program starts and program end time carrys out live TS slice information in timing acquisition database.
Described Set Top Box is using time shift duration as parameter, and sending time shifting request to M3U8 server is that 3-7s circulation sends once.
After described server receives request, analytic parameter, gets time shift duration, in internal memory, then inquire the TS file that this duration is corresponding, obtains 3-6 sheet continuously.
Usefulness of the present invention is: the present invention is based on HLS protocol, Set Top Box is when carrying out viewing programme televised live, by rewind, during fast forward button, time shift duration is calculated according to progress bar, generation request is sent to server, the time shift duration that server is new according to the acquisition request received, get new TS sheet, the new M3U8 file of dynamic generation sends to box end, after box end gets M3U8, order request will be re-started, thus the object reached to program time shifting in network direct broadcasting process, can accomplish that penetrability is strong, HLS protocol is used to carry out direct broadcast time-shift, make directly to obtain from the internal memory of server during terminal request data, greatly improve the reaction speed to terminal data request, optimize video viewing experience.
Accompanying drawing explanation
Fig. 1 direct broadcast time-shift deployment architecture of the present invention schematic diagram;
Fig. 2 direct broadcast time-shift interaction flow of the present invention schematic diagram.
Embodiment
Content of the present invention is further elaborated by reference to the accompanying drawings.
Embodiment 1
A method for time shift in the live process of Set Top Box is realized based on HLS protocol, based on HLS protocol,
Utilize server end build M3U8 service, in internal memory, set up list, successively according to channel designation, programm name, program starts and program end time carrys out live TS slice information in timing acquisition database; Such as choose Chinese Central Television's sports channel, music channel, news channel, the wherein live game coverage of sports channel, the concert of music channel is live, and the interview of news channel is live, then starts according to above-mentioned program and program end time carrys out live TS slice information in timing acquisition database;
Time live, select Set Top Box player plays time-shifting function, the F.F. that uses a teleswitch, rewind button, by progress pointer movement to relevant position, according to total duration, shift time during calculating, time shift duration as parameter, is sent time shifting request to M3U8 server by Set Top Box, and 3s circulation sends once;
After server receives request, analytic parameter, gets time shift duration, in internal memory, then inquire the TS file that this duration is corresponding, continuous acquisition 3, server, according to the live standard of M3U8, generates M3U8 file content character string, returns to Set Top Box provide download with the form of document flow, after Set Top Box gets M3U8 file, obtain corresponding TS to the stream pushing server that M3U8 document is fixed to cut into slices, and automatically play according to HLS protocol, realize time shift effect.
Embodiment 2
A method for time shift in the live process of Set Top Box is realized based on HLS protocol, based on HLS protocol,
Utilize server end build M3U8 service, in internal memory, set up list, successively according to channel designation, programm name, program starts and program end time carrys out live TS slice information in timing acquisition database; Such as choose Hunan TV stage body ssd channel, juvenile's Cartoon Network, news channel, the wherein live game coverage of sports channel, the little reporter of juvenile's Cartoon Network interviews live, the focus inside the province of news channel is live, then starts according to above-mentioned program and program end time carrys out live TS slice information in timing acquisition database;
Time live, select Set Top Box player plays time-shifting function, the F.F. that uses a teleswitch, rewind button, by progress pointer movement to relevant position, according to total duration, shift time during calculating, time shift duration as parameter, is sent time shifting request to M3U8 server by Set Top Box, and 5s circulation sends once;
After server receives request, analytic parameter, gets time shift duration, in internal memory, then inquire the TS file that this duration is corresponding, continuous acquisition 4, server, according to the live standard of M3U8, generates M3U8 file content character string, returns to Set Top Box provide download with the form of document flow, after Set Top Box gets M3U8 file, obtain corresponding TS to the stream pushing server that M3U8 document is fixed to cut into slices, and automatically play according to HLS protocol, realize time shift effect.
Embodiment 3
A method for time shift in the live process of Set Top Box is realized based on HLS protocol, based on HLS protocol,
Utilize server end build M3U8 service, in internal memory, set up list, successively according to channel designation, programm name, program starts and program end time carrys out live TS slice information in timing acquisition database; Such as choose Jinan TV station education channel, sports channel, news channel, the wherein live game coverage of sports channel, the information of entering oneself for the examination of education channel is live, the city focus of news channel is live, then starts according to above-mentioned program and program end time carrys out live TS slice information in timing acquisition database;
Time live, select Set Top Box player plays time-shifting function, the F.F. that uses a teleswitch, rewind button, by progress pointer movement to relevant position, according to total duration, shift time during calculating, time shift duration as parameter, is sent time shifting request to M3U8 server by Set Top Box, and 7s circulation sends once;
After server receives request, analytic parameter, gets time shift duration, in internal memory, then inquire the TS file that this duration is corresponding, continuous acquisition 6, server, according to the live standard of M3U8, generates M3U8 file content character string, returns to Set Top Box provide download with the form of document flow, after Set Top Box gets M3U8 file, obtain corresponding TS to the stream pushing server that M3U8 document is fixed to cut into slices, and automatically play according to HLS protocol, realize time shift effect.
Claims (4)
1. realize a method for time shift in the live process of Set Top Box based on HLS protocol, based on HLS protocol, it is characterized in that
Utilize server end to build M3U8 service, in internal memory, set up list, be used for live TS slice information in timing acquisition database;
Time live, select Set Top Box player plays time-shifting function, the F.F. that uses a teleswitch, rewind button, by progress pointer movement to relevant position, according to total duration, shift time during calculating, time shift duration as parameter, is sent time shifting request to M3U8 server by Set Top Box;
After server receives request, analytic parameter, get time shift duration, in internal memory, then inquire the TS file that this duration is corresponding, server is according to the live standard of M3U8, generate M3U8 file content character string, return to Set Top Box with the form of document flow and download is provided, after Set Top Box gets M3U8 file, obtain corresponding TS to the stream pushing server that M3U8 document is fixed and cut into slices, and automatically play according to HLS protocol, realize time shift effect.
2. according to a kind of method realizing time shift in the live process of Set Top Box based on HLS protocol according to claim 1, it is characterized in that described in internal memory, setting up list, successively according to channel designation, programm name, program starts and program end time carrys out live TS slice information in timing acquisition database.
3. a kind of method realizing time shift in the live process of Set Top Box based on HLS protocol according to claim 1 and 2, is characterized in that described Set Top Box using time shift duration as parameter, and sending time shifting request to M3U8 server is that 3-7s circulation sends once.
4. a kind of method realizing time shift in the live process of Set Top Box based on HLS protocol according to claim 2, after it is characterized in that described server receives request, analytic parameter, gets time shift duration, then in internal memory, inquire the TS file that this duration is corresponding, obtain 3-6 sheet continuously.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105704568A (en) * | 2016-02-03 | 2016-06-22 | 浪潮软件集团有限公司 | Method and device for realizing live broadcast time shifting |
| CN106210783A (en) * | 2016-07-29 | 2016-12-07 | 浪潮软件集团有限公司 | Method for dynamically adjusting bandwidth of broadcast television network of set top box based on HLS protocol |
| CN106454447A (en) * | 2016-10-11 | 2017-02-22 | 青岛海信电器股份有限公司 | Video playing and processing method and device, and television |
| CN108024157A (en) * | 2016-10-28 | 2018-05-11 | 中国电信股份有限公司 | Realize method and system, set-top box and the fringe node with the live seamless time shifts of HLS |
| CN108156490A (en) * | 2017-12-27 | 2018-06-12 | 深圳康佳信息网络有限公司 | A kind of method, system and storage medium using mobile terminal playback live telecast |
| CN109040769A (en) * | 2018-08-22 | 2018-12-18 | 广东省南方数字电视无线传播有限公司 | Direct broadcast time-shift method and device based on HLS protocol |
| CN110784737A (en) * | 2019-10-21 | 2020-02-11 | 北京东方广视科技股份有限公司 | HLS protocol-based time-shifted television playing method, terminal and server |
| CN112601131A (en) * | 2020-12-10 | 2021-04-02 | 杭州当虹科技股份有限公司 | HLS video slice file storage optimization method |
| CN117336311A (en) * | 2023-11-30 | 2024-01-02 | 深圳市小溪流科技有限公司 | Method and device for keeping consistency of multiple HLS server slices |
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| CN110784737A (en) * | 2019-10-21 | 2020-02-11 | 北京东方广视科技股份有限公司 | HLS protocol-based time-shifted television playing method, terminal and server |
| CN112601131A (en) * | 2020-12-10 | 2021-04-02 | 杭州当虹科技股份有限公司 | HLS video slice file storage optimization method |
| CN117336311A (en) * | 2023-11-30 | 2024-01-02 | 深圳市小溪流科技有限公司 | Method and device for keeping consistency of multiple HLS server slices |
| CN117336311B (en) * | 2023-11-30 | 2024-03-12 | 深圳市小溪流科技有限公司 | Method and device for keeping consistency of multiple HLS server slices |
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Application publication date: 20151118 |