CN107147949A - The playing progress rate control method and system of a kind of direct broadcast time-shift - Google Patents
The playing progress rate control method and system of a kind of direct broadcast time-shift Download PDFInfo
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- CN107147949A CN107147949A CN201710311607.5A CN201710311607A CN107147949A CN 107147949 A CN107147949 A CN 107147949A CN 201710311607 A CN201710311607 A CN 201710311607A CN 107147949 A CN107147949 A CN 107147949A
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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
- H04N21/47—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
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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
- H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
- H04N21/44204—Monitoring of content usage, e.g. the number of times a movie has been viewed, copied or the amount which has been watched
-
- 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
- H04N21/488—Data services, e.g. news ticker
- H04N21/4884—Data services, e.g. news ticker for displaying subtitles
-
- 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
- H04N21/8547—Content authoring involving timestamps for synchronizing content
Abstract
The invention provides the playing progress rate control method and system of a kind of direct broadcast time-shift, this method includes：The content information occurred in live video stream in each frame of video is gathered, and remembers the issuing time point of content information；Content information is associated by the corresponding frame of video of issuing time point；The time shifting broadcasting request that user sends is received, judges whether current live video flowing meets time shift condition, provides the user positioning time shift search interface；The critical field inputted according to user searches for content information in database and carries out matching treatment；The frame picture of frame of video associated with it is quickly jumped to according to the issuing time of content information point, and is played out；The system includes database and information acquisition module, relating module, request receiving module, interface creating module, search matching module, jump module.The present invention, which can be positioned quickly, jumps to the play position that user wants, and time shift progress has more hommization, effectively increases the accuracy rate of time shift.
Description
Technical field
The present invention relates to multimedia play technology field, the playing progress rate control method of more particularly to a kind of direct broadcast time-shift and
System.
Background technology
So-called time shift, refers to that spectators can arbitrarily play back the live content of time in the past.Time shift is live mutually to be tied with program request
A kind of new business formed by conjunction, is the supplement of live broadcast service.User can suspend, later halfway when watching programme televised live
It can continue to watch at pause, in order to avoid miss some important plots.Technically, when suspending request, Play Server
Section directory is got off, when continuing to play, then the program that record is got off is replayed using unicast fashion.
For live program, any time that the flow medium live system with time-shifting function can be after sees section
Mesh, for example, play ball match, is not necessarily intended to live viewing ball match, can at any time suspend, plays back, advances or play, that is, ball
The reproduction time synchronism of match thinks when to see just when see to eliminating, and wants to see the excellent wink that any one is scored
Between can play back viewing, bring facility to user.
At present, when user's viewing live video wants adjustment playing progress rate, it is typically only possible by manually or case is pulled and broadcast
Progress bar adjustment playing progress rate is put, such as existing patent publication No. is a kind of broadcasting of direct broadcast time-shift disclosed in CN102664032A
In progress adjustment bar and its control method, the technology, user can adjust playing progress rate by adjusting progress bar, but pass through this
Technology can not rapidly, accurately navigate to the progress of oneself wanting to see during playing progress rate adjustment, and adjust back and forth into
Degree is more uninteresting, and position error is larger, it is impossible to carries out quick positioning according to the content of broadcasting and jumps to the broadcasting position that user wants
Put, the inadequate hommization of progress regulation, user experience are poor, therefore, urgent need exploitation is a kind of can be accurately positioned playing progress rate
The playing progress rate control method and system of direct broadcast time-shift.
The content of the invention
In order to solve in existing video playback progress regulation technology, it is impossible to rapidly, accurately navigate to and oneself want what is seen
Progress, and regulation progress is more uninteresting back and forth, and position error is larger, it is impossible to carries out quick positioning according to the content of broadcasting and redirects
The play position wanted to user, the problems such as progress adjusts inadequate hommization, user experience is poor, the invention provides one kind
The playing progress rate control method and system of the direct broadcast time-shift of playing progress rate can be accurately positioned.
Concrete technical scheme of the present invention is as follows：
The invention provides a kind of playing progress rate control method of direct broadcast time-shift, the control method comprises the following steps：
The content information occurred in S1, collection live video stream in each frame of video, and remember the hair of the content information
Cloth time point, the issuing time point is reproduction time stamp of the frame of video in the live video stream, while preserving extremely
Database, the content information includes caption content, perhaps audio content in barrage；
S2, the content information is associated by the corresponding frame of video of the issuing time point；
S3, user send time shifting broadcasting request, and the time shifting broadcasting request includes rewind, F.F. or pause；
S4, the reception time shifting broadcasting request, judge whether presently described live video stream meets time shift condition, if full
Foot, then give user and provide positioning time shift search interface；
S5, according to user searches in the database in the critical field that the positioning time shift search interface is inputted
Content information simultaneously carries out matching treatment；
S6, when the match is successful, the content information matched in the database is obtained, according to the content information
The issuing time point quickly jumps to the frame picture of the frame of video associated with it, and plays out.
Further, step S1, to the content information occurred in the live video stream in each described frame of video
Collection comprise the following steps：
1., judge to whether there is caption content or barrage content in the frame picture of the frame of video, if in the presence of capturing institute
State the keyword or key wordses of caption content or the barrage content and preserve to the database, if being not present, enter
Step is 2.；
2. the audio content in the frame of video, is monitored, and speech recognition is carried out to the audio content, institute is obtained
State the keyword or key wordses in audio content and preserve to the database.
Further, in step S2, the content information is passed through into the corresponding video of the issuing time point
Frame is associated, and specifically includes following steps：
S2-1, the corresponding frame of video of the content information is associated；
S2-2, the reproduction time stamp of some frame of video form progress bar, the progress bar according to reproduction time progress
At the time of node it is corresponding with the reproduction time stamp of some frame of video；
S2-3, the moment node of the progress bar is passed through into corresponding reproduction time stamp link each institute
State frame of video.
Further, in step S4, the time shifting broadcasting request is received, judges whether presently described live video stream meets
Time shift condition, if meeting, gives user and provides positioning time shift search interface, specific method is：
S4-1, the time shifting broadcasting request for receiving user's transmission, exit live state, and it is live to be transferred to half with caching
State, determines current live time point and time shifting request time point；
S4-2, using the time shifting request time point as playing progress rate initial time, by the current live time point
It is used as the end time of playing progress rate；
S4-3, the video flowing between the initial time and the end time is judged with the presence or absence of caching, and really
Determine storage location；
If S4-4, be not present caching, be unsatisfactory for time shift condition, to user send time shift failure information；If there is caching,
Time shift condition is then met, now, user is given and positioning time shift search interface is provided.
It is preferred that, in step S5, according to user in the critical field for positioning the input of time shift search interface in the number
According to searching for the content information in storehouse and carrying out matching treatment, specific method comprises the following steps：
S5-1, user is identified in the critical field of the positioning time shift search interface input；
The critical field that S5-2, basis are identified searches for the content letter similar to its in the database
Breath, and carry out matching treatment；
S5-3, if match it is unsuccessful if can not realize automatic time shifting request, user is only capable of by adjusting playing progress rate manually；
If the match is successful, into step S6.
It is preferred that, it is further comprising the steps of in step S5-2：
If the critical field according to identifying searches out multiple contents similar to its in the database
During information, then remind user to input other critical fielies for the second time in the positioning time shift search interface, searched in first time
The content information matched with the critical field twice is searched in the similar content information that rope goes out；
If still searching out multiple content informations in the database according to two critical fielies, remind
User inputs other critical fielies in the positioning time shift search interface third time, until searching out the described of matching
Untill content information.
Present invention also offers a kind of playing progress rate control system of direct broadcast time-shift, including database and with the database
The information acquisition module that communicates, relating module, request receiving module, interface creating module, search for matching module, redirect mould
Block；
Described information acquisition module is used to gather the content information occurred in the frame of video of each in live video stream, and remembers
The issuing time point of the content information, while preserving to the database, the issuing time point is the frame of video in institute
State the reproduction time stamp in live video stream, the content information includes caption content, perhaps audio content in barrage；
The relating module is used to the content information passing through the corresponding frame of video of the issuing time point
It is associated；
The request receiving module is used for the time shifting broadcasting request for receiving user's transmission, and judges presently described live
Whether video flowing meets time shift condition, if meeting, and generation search instruction is sent to the interface creating module；
The interface creating module is used to receive the search instruction and provides the user the positioning time shift search circle of establishment
Face；
The search matching module is used for according to user in the critical field for positioning the input of time shift search interface in institute
State and the content information is searched in database and matching treatment is carried out, time shift instruction transmission is generated if matching and redirects mould to described
Block；
The jump module is used to obtain the content information matched in the database, while being believed according to the content
The issuing time point of breath quickly jumps to the frame picture of the frame of video associated with it, and plays out.
Further, described information acquisition module includes content judging unit, the crawl list communicated with the database
Member, monitoring unit, voice recognition unit, the content judging unit whether there is in the frame picture for judging the frame of video
Caption content or barrage content, if in the presence of generation content crawl instruction is sent to the placement unit；The placement unit is used
In the keyword or key wordses and preservation for capturing the caption content or the barrage content to the database；If not depositing
Then generating audio select instruction and sending to the monitoring unit, the monitoring unit is used to monitor the institute in the frame of video
Audio content is stated, and is sent to the voice recognition unit；The voice recognition unit is used to carry out language to the audio content
Sound is recognized, is obtained the keyword or key wordses in the audio content and is preserved to the database.
Further, the receiving unit, status toggle unit, caching that the request receiving module includes communicating judge single
Member, the receiving unit is used for the time shifting broadcasting request for receiving user's transmission；The status toggle unit is used for according to institute
Time shifting broadcasting request is stated, control broadcast state exits live state, and is transferred to half live state with caching, determines current live
Time point and time shifting request time point；The caching judging unit is used to judge the time shifting request time point and described current straight
The video flowing between time point is broadcast with the presence or absence of caching, and determines storage location, if there is caching, search instruction is generated
Send to the interface creating module.
It is preferred that, the search matching module includes field recognition unit, the search unit communicated with the database,
The field recognition unit is used to user be identified in the critical field of the positioning time shift search interface input, and sends
To the search unit；The search unit is used to be searched in the database and it according to the critical field identified
The similar content information, and matching treatment is carried out, if the match is successful, generation time shift instruction is sent redirects mould to described
Block.
Beneficial effects of the present invention are as follows：The method that the present invention is provided moves on to use when can realize fast and accurately positioning
The progress seen is wanted at family, and overcomes user in the prior art and adjust progress bar manually, it is impossible to definitely fixed according to video frame content
The defects such as position playing progress rate, this method effectively increases the accuracy rate of time shift, does not influence live effect not only, and can be quick
Positioning jumps to the play position that user wants, and time shift progress has more hommization, saves excellent in user's playback video flowing
The time of picture, accurate positioning, in addition, the system architecture is simple, can realize that user is accurately positioned to time shift progress, practical
Property is strong.
Brief description of the drawings
Fig. 1 is a kind of schematic flow sheet of the playing progress rate control method of direct broadcast time-shift described in embodiment 1；
Fig. 2 adopts for content information in step S1 in a kind of playing progress rate control method of direct broadcast time-shift described in embodiment 2
The method flow diagram of collection；
Fig. 3 be embodiment 2 described in a kind of direct broadcast time-shift playing progress rate control method in step S2 concrete operations stream
Cheng Tu；
Fig. 4 be embodiment 2 described in a kind of direct broadcast time-shift playing progress rate control method in step S4 concrete operations stream
Cheng Tu；
Fig. 5 be embodiment 2 described in a kind of direct broadcast time-shift playing progress rate control method in step S5 concrete operations stream
Cheng Tu；
Fig. 6 is a kind of structured flowchart of the playing progress rate control system of direct broadcast time-shift described in embodiment 3；
Fig. 7 be embodiment 4 described in a kind of direct broadcast time-shift playing progress rate control system in information acquisition module structure
Block diagram；
Fig. 8 be embodiment 4 described in a kind of direct broadcast time-shift playing progress rate control system in request receiving module structure
Block diagram；
Fig. 9 be embodiment 4 described in a kind of direct broadcast time-shift playing progress rate control system in search for matching module structure
Block diagram.
Wherein：1st, database；2nd, information acquisition module；201st, content judging unit；202nd, placement unit；203rd, monitor single
Member；204th, voice recognition unit；3rd, relating module；4th, request receiving module；401st, receiving unit；402nd, status toggle unit；
403rd, judging unit is cached；5th, interface creating module；6th, matching module is searched for；601st, field recognition unit；602nd, search unit；
7th, jump module.
Embodiment
The present invention is described in further detail with following examples below in conjunction with the accompanying drawings.
Embodiment 1
As shown in figure 1, the embodiment of the present invention 1 provides a kind of playing progress rate control method of direct broadcast time-shift, the manipulation
Method comprises the following steps：
The content information occurred in S1, collection live video stream in each frame of video, and remember the hair of the content information
Cloth time point, the issuing time point is reproduction time stamp of the frame of video in the live video stream, while preserving extremely
Database 1, the timing code of content information should be corresponding with the reproduction time stamp of frame of video, could so pass through content information correspondence
Frame of video is searched, facilitates the positioning of frame of video.The content information includes caption content, perhaps audio content in barrage；Content
Information can be by extracting keyword, if not having captions or bullet in the frame picture in the captions or barrage of the frame picture of frame of video
Curtain, then can facilitate later stage user to pass through pass with the audio in acquisition frame picture, by the parsing identidication key information to audio
The key search words frame picture.
S2, the content information is associated by the corresponding frame of video of the issuing time point；Will be interior
After appearance information is associated with frame of video, frame of video could be directly connected to by content information.
S3, user send time shifting broadcasting request, and the time shifting broadcasting request includes rewind, F.F. or pause；Time shifting broadcasting
Request can be rewind, F.F. or pause, when moving playing request when sending, exit live-mode, into program request state, this
When, between live node by sending time shifting broadcasting request, systems stay is cached.
S4, the reception time shifting broadcasting request, in order to realize time shift, it is necessary to judge that presently described live video stream is
It is no to meet time shift condition, if meeting, give user and positioning time shift search interface is provided；Whether time shift can be realized, main system
System is cached either with or without the stage for time shift.
S5, in order to realize time shift is accurately positioned, improves the accuracy and location efficiency of time shift, it is necessary to pass through keyword
Duan Jinhang retrieval by window, is searched according to user in the critical field that the positioning time shift search interface is inputted in the database 1
Suo Suoshu content informations simultaneously carry out matching treatment；
S6, when the match is successful, the content information matched in the database 1 is obtained, according to the content information
The issuing time point quickly jump to the frame picture of the frame of video associated with it, and play out.If matching not into
Work(, then system time shift can be pointed out to fail.
The critical field that the method that the present invention is provided can be inputted by user is retrieved in database 1, so as to logical
The matching of critical field is crossed, the frame of video of association is accurately positioned, the accuracy rate of time shift positioning is improved, can quickly position jump
The play position that user wants is gone to, time shift progress has more hommization, save excellent picture in user's playback video flowing
Time, accurate positioning is practical.
For example, when user watches live ball match, if watching moment of excellent goal because some things delay, in order to
The video content can be played back, user can suspend live state, enter program request state by sending time shifting broadcasting request, and lead to
The content information that the critical fielies such as input " score, entered, goal " retrieve correlation in database 1 is crossed, while by retrieving
The related frame of video of content information matching so that by the presentation of video frames retrieved.
Embodiment 2
The embodiment of the present invention 2 further defines the playing progress rate control method of direct broadcast time-shift on the basis of embodiment 1
In each step concrete operation method, effectively increase being accurately positioned for direct broadcast time-shift.
As shown in Fig. 2 it should be further stated that, step S1, to each described frame of video in the live video stream
The collection of the content information of interior appearance comprises the following steps：
1., judge to whether there is caption content or barrage content in the frame picture of the frame of video, if in the presence of capturing institute
State the keyword or key wordses of caption content or the barrage content and preserve to the database 1, if being not present, enter
Step is 2.；
2. the audio content in the frame of video, is monitored, and speech recognition is carried out to the audio content, institute is obtained
State the keyword or key wordses in audio content and preserve to the database 1.
Video flowing is to be played to be formed with Time Continuous by some frame of video, in order to realize the positioning to frame of video, is needed
Captions, barrage or audio can be included by gathering the information in the content information in frame of video, frame of video, in order to improve content letter
The collecting efficiency of breath, captions or barrage can be recognized first, be easy to processing and contents extraction, if in the frame picture of the frame of video not
With captions or barrage, in order to realize the extraction of content, the information of audio identification frame of video, such as live ball match can be passed through
Cheng Zhong, can gather the audios such as host, football fan, team member, judge, recognize key message, carry out the collection of content information, effectively
Improve information extraction efficiency.
As shown in Figure 3, it is necessary to be explained further, in step S2, the content information is passed through into the issuing time
The corresponding frame of video of point is associated, and specifically includes following steps：
S2-1, the corresponding frame of video of the content information is associated；
S2-2, the reproduction time stamp of some frame of video form progress bar, the progress bar according to reproduction time progress
At the time of node it is corresponding with the reproduction time stamp of some frame of video；Progress bar is computer in the task of processing, in real time,
With the speed of graphic form display processing task, completeness, residue does not complete the size of task amount, and when may need processing
Between, typically shown with rectangle strip.The reproduction time stamp of frame of video in time correspondence video flowing on progress bar.
S2-3, the moment node of the progress bar is passed through into corresponding reproduction time stamp link each institute
State frame of video.When adjusting the timing node on progress bar, the frame of video for redirecting out link can be corresponded to, facilitates different video to return
The regulation put, advanced.
As shown in figure 4, needing further exist in explanation, step S4, the time shifting broadcasting request is received, current institute is judged
State whether live video stream meets time shift condition, if meeting, give user and positioning time shift search interface, specific method are provided
For：
S4-1, the time shifting broadcasting request for receiving user's transmission, exit live state, and it is live to be transferred to half with caching
State, determines current live time point and time shifting request time point；
S4-2, using the time shifting request time point as playing progress rate initial time, by the current live time point
It is used as the end time of playing progress rate；
S4-3, the video flowing between the initial time and the end time is judged with the presence or absence of caching, and really
Determine storage location；
If S4-4, be not present caching, be unsatisfactory for time shift condition, to user send time shift failure information；If there is caching,
Time shift condition is then met, now, user is given and positioning time shift search interface is provided.
Only when Installed System Memory is in video cache, the time shift of live video could be realized, therefore, during live,
, it is necessary to exit live state when user sends time shifting broadcasting request, and cached, the when shift time that then detection request is played
The video of point is with the presence or absence of caching, if can just realize time shift in the presence of caching.
As shown in Figure 5, it is preferred that in step S5, the keyword inputted according to user in the positioning time shift search interface
Section searches for the content information in the database 1 and carries out matching treatment, and specific method comprises the following steps：
S5-1, user is identified in the critical field of the positioning time shift search interface input；
The critical field that S5-2, basis are identified searches for the content letter similar to its in the database 1
Breath, and carry out matching treatment；
S5-3, if match it is unsuccessful if can not realize automatic time shifting request, user is only capable of by adjusting playing progress rate manually；
If the match is successful, into step S6.
When user input critical field the content information associated with frame of video of extraction can be retrieved in database 1,
Then prove that the match is successful, if not retrieving relevant content information, prove that the content information matched is not present.
It is preferred that, it is further comprising the steps of in step S5-2：
If searching out multiple contents similar to its in the database 1 according to the critical field identified
During information, then remind user to input other critical fielies for the second time in the positioning time shift search interface, searched in first time
The content information matched with the critical field twice is searched in the similar content information that rope goes out；
If still searching out multiple content informations in the database 1 according to two critical fielies, carry
The user that wakes up inputs other critical fielies in the positioning time shift search interface third time, until searching out the institute of a matching
Untill stating content information.
When user inputs first keyword, if retrieve some content informations in database 1, in order to realize
Being accurately positioned for frame of video, can be retrieved keyword, further by inputting the second keyword in the form of " and "
Content information is accurately positioned, if there are still multiple corresponding content informations, can further input the 3rd keyword, enter
One step is retrieved and positioned, untill retrieve the corresponding content of only one of which, it is achieved thereby that frame of video is accurately positioned.
For example when playing ball match, " score, enter " etc. can be retrieved as keyword and carry out information retrieval, if occurring 3
The individual content information matched with it, then retrieved, you can retrieve using " goal and goals team member " as keyword again
A matched only content information, realizes being accurately positioned for frame of video.
Embodiment 3
As shown in fig. 6, the embodiment of the present invention 3 provides a kind of playing progress rate control system of direct broadcast time-shift, including data
Storehouse 1 and the information acquisition module 2 communicated with the database 1, relating module 3, request receiving module 4, interface creating module
5th, search matching module 6, jump module 7；
Described information acquisition module 2 is used to gather the content information occurred in the frame of video of each in live video stream, and remembers
Recall the issuing time point of the content information, while preserving to the database 1, the issuing time point is that the frame of video exists
Reproduction time stamp in the live video stream, the content information includes caption content, perhaps audio content in barrage；
The relating module 3 is used to the content information passing through the corresponding frame of video of the issuing time point
It is associated；
The request receiving module 4 is used for the time shifting broadcasting request for receiving user's transmission, and judges presently described straight
Broadcast whether video flowing meets time shift condition, if meeting, generation search instruction is sent to the interface creating module 5；
The interface creating module 5 is used to receive the search instruction and provides the user the positioning time shift search circle of establishment
Face；
The search matching module 6 is used for according to user in the critical field for positioning the input of time shift search interface in institute
State and the content information is searched in database 1 and matching treatment is carried out, time shift instruction transmission is generated if matching and is redirected to described
Module 7；
The jump module 7 is used to obtain the content information matched in the database 1, while according to the content
The issuing time point of information quickly jumps to the frame picture of the frame of video associated with it, and plays out.
System architecture that the present invention is provided is simple, can be by the collection of the content information to frame of video, by content
The retrieval of information, can realize that user is accurately positioned to time shift progress, practical.
Embodiment 4
As shown in fig. 7, the embodiment of the present invention 4 is further defined on the basis of embodiment 3, described information acquisition module
2 content judging unit 201, placement unit 202, monitoring unit 203, speech recognition lists including being communicated with the database 1
With the presence or absence of in caption content or barrage in member 204, frame picture of the content judging unit 201 for judging the frame of video
Hold, if in the presence of generation content crawl instruction is sent to the placement unit 202；The placement unit 202 is described for capturing
The keyword or key wordses of caption content or the barrage content are simultaneously preserved to the database 1；If being not present, sound is generated
Frequency is monitored instruction and sent to the monitoring unit 203, and the monitoring unit 203 is used to monitor the audio in the frame of video
Content, and send to the voice recognition unit 204；The voice recognition unit 204 is used to carry out language to the audio content
Sound is recognized, is obtained the keyword or key wordses in the audio content and is preserved to the database 1.
Content information that can be in precise acquisition frame of video by information acquisition module 2, facilitates the later stage to pass through content information
Positioning and screening to frame of video, effectively improve time shift efficiency.
As shown in figure 8, it should be further stated that, the request receiving module 4 includes the receiving unit communicated
401st, status toggle unit 402, caching judging unit 403, the receiving unit 401 are used for the time shift for receiving user's transmission
Playing request；The status toggle unit 402 is used to be asked according to the time shifting broadcasting, and control broadcast state exits live shape
State, and half live state with caching is transferred to, determine current live time point and time shifting request time point；The caching judges single
The video flowing that member 403 was used to judge between the time shifting request time point and the current live time point is with the presence or absence of slow
Deposit, and determine storage location, if there is caching, generation search instruction is sent to the interface creating module 5.
As shown in figure 9, it is preferred that the need for illustrate, it is described search matching module 6 include communicated with the database 1
Field recognition unit 601, search unit 602, the field recognition unit 601 be used for user it is described positioning time shift search
The critical field of interface input is identified, and sends to the search unit 602；The search unit 602 is used for according to knowledge
The critical field not gone out searches for the content information similar to its in the database 1, and carries out matching treatment, if
The match is successful, then generate time shift instruction and send to the jump module 7.
When user input critical field the content information associated with frame of video of extraction can be retrieved in database 1,
Then prove that the match is successful, if not retrieving relevant content information, prove that the content information matched is not present.
The present invention is not limited to above-mentioned preferred forms, and anyone can show that other are various under the enlightenment of the present invention
The product of form, however, make any change in its shape or structure, it is every that there is skill identical or similar to the present application
Art scheme, is within the scope of the present invention.
Claims (10)
1. the playing progress rate control method of a kind of direct broadcast time-shift, it is characterised in that the control method comprises the following steps：
The content information occurred in S1, collection live video stream in each frame of video, and when remembering the issue of the content information
Between point, the issuing time point is reproduction time stamp of the frame of video in the live video stream, while preserving to data
Storehouse (1), the content information includes caption content, perhaps audio content in barrage；
S2, the content information is associated by the corresponding frame of video of the issuing time point；
S3, user send time shifting broadcasting request, and the time shifting broadcasting request includes rewind, F.F. or pause；
S4, the reception time shifting broadcasting request, judge whether presently described live video stream meets time shift condition, if meeting,
Give user and positioning time shift search interface is provided；
S5, according to user searches in the critical field that the positioning time shift search interface is inputted in the database (1)
Content information simultaneously carries out matching treatment；
S6, when the match is successful, the content information of matching in the database (1) is obtained, according to the content information
The issuing time point quickly jumps to the frame picture of the frame of video associated with it, and plays out.
2. the playing progress rate control method of direct broadcast time-shift as claimed in claim 1, it is characterised in that step S1, to described straight
The collection for broadcasting the content information occurred in the frame of video of each in video flowing comprises the following steps：
1., judge to whether there is caption content or barrage content in the frame picture of the frame of video, if in the presence of capturing the word
Curtain in perhaps described barrage content keyword or key wordses and preserve to the database (1), if being not present, enter walk
Suddenly 2.；
2. the audio content in the frame of video, is monitored, and speech recognition is carried out to the audio content, the sound is obtained
Keyword or key wordses in frequency content are simultaneously preserved to the database (1).
3. the playing progress rate control method of direct broadcast time-shift as claimed in claim 1, it is characterised in that in step S2, will be described
Content information is associated by the corresponding frame of video of the issuing time point, specifically includes following steps：
S2-1, the corresponding frame of video of the content information is associated；
S2-2, some frame of video reproduction time stamp according to reproduction time progress formed progress bar, the progress bar when
Carve node corresponding with the reproduction time stamp of some frame of video；
S2-3, the moment node of the progress bar regarded described in each by corresponding reproduction time stamp link
Frequency frame.
4. the playing progress rate control method of direct broadcast time-shift as claimed in claim 1, it is characterised in that in step S4, receives institute
Time shifting broadcasting request is stated, judges whether presently described live video stream meets time shift condition, if meeting, user is given and provides fixed
Position time shift search interface, specific method is：
S4-1, the time shifting broadcasting request for receiving user's transmission, exit live state, and be transferred to the half live shape with caching
State, determines current live time point and time shifting request time point；
S4-2, using the time shifting request time point as playing progress rate initial time, using the current live time point as
The end time of playing progress rate；
S4-3, the video flowing between the initial time and the end time is judged with the presence or absence of caching, and determine to deposit
Storage space is put；
If S4-4, be not present caching, be unsatisfactory for time shift condition, to user send time shift failure information；It is full if there is caching
Sufficient time shift condition, now, gives user and provides positioning time shift search interface.
5. the playing progress rate control method of direct broadcast time-shift as claimed in claim 1, it is characterised in that in step S5, according to
Family is searched for the content information in the critical field of the positioning time shift search interface input and carried out in the database (1)
Matching treatment, specific method comprises the following steps：
S5-1, user is identified in the critical field of the positioning time shift search interface input；
The critical field that S5-2, basis are identified search content information similar to its in the database (1),
And carry out matching treatment；
S5-3, if match it is unsuccessful if can not realize automatic time shifting request, user is only capable of by adjusting playing progress rate manually；If
With success, then into step S6.
6. the playing progress rate control method of direct broadcast time-shift as claimed in claim 5, it is characterised in that in step S5-2, also wrap
Include following steps：
If searching out multiple contents similar to its in the database (1) according to the critical field identified to believe
During breath, then remind user to input other critical fielies for the second time in the positioning time shift search interface, searched in first time
The content information matched with the critical field twice is searched in the similar content information gone out；
If still searching out multiple content informations in the database (1) according to two critical fielies, remind
User inputs other critical fielies in the positioning time shift search interface third time, until searching out the described of matching
Untill content information.
7. a kind of playing progress rate control system of direct broadcast time-shift, it is characterised in that including database (1) and with the database
(1) information acquisition module (2) that communicates, relating module (3), request receiving module (4), interface creating module (5), search
With module (6), jump module (7)；
Described information acquisition module (2) is used to gather the content information occurred in the frame of video of each in live video stream, and remembers
The issuing time point of the content information, while preserving to the database (1), the issuing time point is that the frame of video exists
Reproduction time stamp in the live video stream, the content information includes caption content, perhaps audio content in barrage；
The relating module (3) is used to enter the content information by the corresponding frame of video of the issuing time point
Row association；
The request receiving module (4) is used for the time shifting broadcasting request for receiving user's transmission, and judges presently described live
Whether video flowing meets time shift condition, if meeting, and generation search instruction is sent to the interface creating module (5)；
The interface creating module (5) is used to receive the search instruction and provides the user the positioning time shift search circle of establishment
Face；
The search matching module (6) is used for according to user in the critical field for positioning the input of time shift search interface described
The content information is searched in database (1) and matching treatment is carried out, generation time shift instruction is sent if matching redirects to described
Module (7)；
The jump module (7) is used for the content information for obtaining matching in the database (1), while according to the content
The issuing time point of information quickly jumps to the frame picture of the frame of video associated with it, and plays out.
8. the playing progress rate control system of direct broadcast time-shift as claimed in claim 7, it is characterised in that described information acquisition module
(2) include communicated with the database (1) content judging unit (201), placement unit (202), monitoring unit (203),
Voice recognition unit (204), the content judging unit (201) whether there is word in the frame picture for judging the frame of video
Perhaps barrage content in curtain, if in the presence of generation content crawl instruction transmission to the placement unit (202)；The crawl is single
First (202) are for capturing the keyword or key wordses of the caption content or the barrage content and preserving to the database
(1)；If being not present, generation audio select instruction is sent to the monitoring unit (203), and the monitoring unit (203) is used for
The audio content in the frame of video is monitored, and is sent to the voice recognition unit (204)；The voice recognition unit
(204) it is used to carry out speech recognition to the audio content, obtains the keyword or key wordses in the audio content and protect
Deposit to the database (1).
9. the playing progress rate control system of direct broadcast time-shift as claimed in claim 7, it is characterised in that the request receiving module
(4) receiving unit (401), status toggle unit (402), caching judging unit (403), the receiving unit communicated is included
(401) it is used for the time shifting broadcasting request for receiving user's transmission；The status toggle unit (402) is used for according to the time shift
Playing request, control broadcast state exits live state, and is transferred to half live state with caching, determines current live time point
With time shifting request time point；The caching judging unit (403) is used to judge the time shifting request time point and described current straight
The video flowing between time point is broadcast with the presence or absence of caching, and determines storage location, if there is caching, search instruction is generated
Send to the interface creating module (5).
10. the playing progress rate control system of direct broadcast time-shift as claimed in claim 7, it is characterised in that the search matches mould
Block (6) includes field recognition unit (601), the search unit (602) communicated with the database (1), the field identification
Unit (601) is used to user be identified in the critical field of the positioning time shift search interface input, and sends to described
Search unit (602)；The search unit (602) is used for according to the critical field identified in the database (1)
The search content information similar to its, and matching treatment is carried out, if the match is successful, generation time shift instruction is sent to described
Jump module (7).
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