CN106604128B - A kind of method and system being inserted into pre- promotional items in network video - Google Patents
A kind of method and system being inserted into pre- promotional items in network video Download PDFInfo
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- CN106604128B CN106604128B CN201611262045.1A CN201611262045A CN106604128B CN 106604128 B CN106604128 B CN 106604128B CN 201611262045 A CN201611262045 A CN 201611262045A CN 106604128 B CN106604128 B CN 106604128B
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- 238000000034 method Methods 0.000 title claims abstract description 48
- 230000001737 promoting effect Effects 0.000 title claims abstract description 36
- 230000035772 mutation Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 208000003464 asthenopia Diseases 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 238000004519 manufacturing process 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]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
- H04N21/47202—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for requesting content on demand, e.g. video on demand
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/44016—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving splicing one content stream with another content stream, e.g. for substituting a video clip
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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
- H04N21/47205—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 manipulating displayed content, e.g. interacting with MPEG-4 objects, editing locally
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/81—Monomedia components thereof
- H04N21/812—Monomedia components thereof involving advertisement data
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Human Computer Interaction (AREA)
- Business, Economics & Management (AREA)
- Marketing (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Television Signal Processing For Recording (AREA)
Abstract
The present invention provides a kind of method and system that pre- promotional items are inserted into network video, the project promoted in advance is compiled video by this method, it and is the addition of each video using project name as the video tab of label, network video is parsed, obtain video frame, the I extracted in each video frame in order is auspicious, judge whether n-th I frame and the N+1 I frame are video Abrupt change, this method and system can be according to the differences of scene each in video, the programme items of the promotion such as major businessman are inserted into appropriate scene, thus method and system provided by the invention can be improved the clicking rate and attention rate of user, and the network video that will not also watch user interferes.
Description
Technical field
The present invention relates to a kind of video on demand fields, in particular to a kind of that pre- promotional items destination party is inserted into network video
Method and system.
Background technique
Video is made of multiple video frames, and each video frame includes: again
I frame: it is a full frame compressed coded frames, is also intracoded frame, therefore the data volume of I frame is generally bigger, I frame
Generated without necessarily referring to other frames, it is the reference frame of P frame or B frame, when decoding only use I frame can reconstruct one it is complete
Image.
P frame: being a forward-predictive-coded frames, also referred to as inter-frame encoding frame, and P frame needs to refer to the adjacent thereto of front
I frame or P frame and generate, while it is also the reference frame of other P frames or B frame, and when decoding must rely on the I frame or P of the front
Frame can just reconstruct complete image.
B frame: being a bi-directional predictive coding frame, it is also an inter-frame encoding frame, and B frame needs to refer to the I frame or P of front
Frame or subsequent P frame generate, and B frame is not as the reference frame of other frames, therefore its decoding error not will cause error diffusion, but
I frame or P frame just restructural complete image out must be relied on when being B frame decoding.
Video content always depends on advertisement as revenue source.Recently, spectators have consumed view by new source
Frequency content；These new sources are usually less to be included or not to include commercial advertisement or other promotion methods, so as to cause traditional
Revenue stream, such as the decline of advertising income.In order to solve the technical problem, the trials such as existing supplier are implanted into production in video
Product, for example, CN105474248 discloses a kind of system and method for promoting project relevant to programme content, this method
Mainly the project occurred in the programme contents such as video and supplier etc. are attached, so that project is implanted to programme content
In, it may all be that performer or certain scene are solid that main problem existing for the technical solution, which was the project occurred in programme content, at that time
Surely product is not suitable for public use, thereby reduces the clicking rate and attention rate of the project, and when in the programs such as video
When holding very attractive, people may only focus on plot, without the project of spectators' implantation, cause the project ignorance degree of injection
It is relatively high.
Summary of the invention
In order to solve the problems in the prior art, the present invention provides one kind and is inserted into pre- promotional items destination party in network video
Method and system, this method can be inserted into the promotion such as major businessman according to the difference of scene each in video in appropriate scene
Programme items, thus method and system provided by the invention can be improved the clicking rate and attention rate of user, and will not also be right
The network video of user's viewing interferes.
Specific technical solution of the present invention is as follows:
One aspect of the present invention provides a kind of method that pre- promotional items are inserted into network video, and this method includes following step
It is rapid:
S1: compiling video for the project promoted in advance, and is the addition of each video using project name as the video tab of label,
And it stores in the database；
S2: parsing network video, obtains each video frame for forming the network video, and is each view by playing sequence
Frequency frame is numbered；
S3: the I extracted in each video frame in order is auspicious, and the number of each I frame is corresponding with each number of video frames；
S4: judge whether n-th I frame and the N+1 I frame are video Abrupt change, and N >=1 is cut if not video mutation
It changes, carries out step S5, otherwise carry out step S7；
S5: by video frame corresponding to n-th I frame B frame and/or P frame carry out packet loss processing；
S6: pre- promotional items video video corresponding with the n-th I frame by step S5 processing is selected from database
Frame is associated；
S7: network video is played according to playing sequence.
Further to improve, step S6 method specifically comprises the following steps:
S61: the I frame of the complete projects common to being separated out in n-th I frame and the N+1 I frame；
S62: the number of the complete projects common to judging carries out step if the number of shared complete projects is 1
The number of S63, shared complete projects are greater than 1, carry out step S64；
S63: one and the consistent video tab of the project name are selected from database according to the project name of complete projects
Corresponding video video frame corresponding with the n-th I frame by step S5 processing is associated；
S64: respectively by the shared complete projects being separated out in n-th I frame and the N+1 I frame in each I frame proportion
It does weighted average processing, obtains weighted average treated the project name of the corresponding complete projects of maximum value, then walked
Rapid S63.
Further to improve, the specific method of step S5 includes the following steps:
S51: judging the time interval of n-th I frame and the N+1 I frame, if time interval is greater than time threshold, carries out
Otherwise step S52 carries out step S53；
S52: it will be carried out at packet loss in the corresponding video frame of n-th I frame with the immediate P frame of the N+1 I frame and 2 B frames
Reason；
S53: all P frames in the corresponding video frame of n-th I frame and B frame are subjected to packet loss processing.
Further to improve, step S1 further includes following steps:
S11: the project information promoted in advance is implanted in two dimensional code, and project information includes producer, producer address, project valence
Lattice, project color；
S12: it is stabbed for load time display time of two dimensional code；
S13: stabbing for the pre- promotional items video load time, and the timestamp of itself and step S12 load is associated；
S14: the two dimensional code after association is shown in the form rolled.
Further to improve, the specific method is as follows by step S4:
S41: the ratio X of n-th I frame and the N+1 I frame is calculated, and is compared with fractional threshold, if ratio X is big
In fractional threshold, then step S7 is carried out, otherwise carries out step S42, ratio X is calculated as follows:
HNAnd HN+1Respectively indicate the histogram of the DC image of n-th I frame and the N+1 I frame；
S42: calculating the difference in n-th I frame, N+1 and the N+2 I frame between every adjacent two I frame, and handled,
And then judge whether n-th I frame and the N+1 I frame are video Abrupt change.
It is further to improve, step S42's method particularly includes:
S421: the difference A of n-th I frame and the N+1 I frame is calculated separately1And the N+1 I frame and the N+2 I frame
Difference A2；
S422: by difference A1With difference A2Summation is done respectively and asks poor processing, obtains A respectivelyWithAnd ADifference；
S432: judge AWithWith the size of threshold value T1, and A is judgedDifferenceWith the size of threshold value T2, if AWith> threshold value T1, and ADifference
< threshold value T2 carries out step S7, if threshold value T2 < AWith、ADifference< threshold value T1, T1 > threshold value T2+ difference A1, carry out step S5.
Another aspect of the present invention provides a kind of system that pre- promotional items are inserted into network video, which includes service
Device and the database to communicate with server, server include:
Project video editing module for the project promoted in advance to be compiled video, and adds for each video with entry name
The referred to as video tab of label, and store in the database；
Network video processing module, for parsing to network video, acquisition forms each video frame of the network video,
And it is numbered by playing sequence for each video frame；
I frame abstraction module, the number and each number of video frames of each I frame auspicious for extracting the I in each video frame in order
It is corresponding；
Abrupt change judgment module, for judging whether n-th I frame and the N+1 I frame are video Abrupt change, N >=1,
If not video Abrupt change, packet loss instruction is sent to packet loss processing module, is otherwise pressed to the transmission of network video playing module
It is instructed according to played in order；
Packet loss processing module, by video frame corresponding to n-th I frame and the N+1 I frame B frame and/or P frame carry out
Packet loss processing；
Project association module, for selecting a pre- promotional items video from database and being handled by packet loss processing module
The corresponding video frame of n-th I frame be associated；
Network video playing module, for playing network video according to playing sequence.
Further to improve, project association module includes:
Separate submodule, for being separated out the I frame of complete projects common in n-th I frame and the N+1 I frame；
Judging submodule, for judging the number of common complete projects, if the number of shared complete projects is 1
A, Xiang Guanlian submodule sends instruction, if the number of shared complete projects is greater than 1, sends out to maximum value acquisition submodule
Send instruction；
It is associated with submodule, is selected from database for the project name according to complete projects one consistent with the project name
The corresponding video of video tab be associated with the corresponding video frame of n-th I frame by the processing of packet loss processing module；
Maximum value acquisition submodule, the shared complete projects for will be separated out in n-th I frame and the N+1 I frame respectively
Proportion does weighted average processing in each I frame, obtains weighted average treated the item of the corresponding complete projects of maximum value
Mesh title, right backward association submodule send instruction.
Further to improve, packet loss processing module includes:
Time interval judging submodule, for judging the time interval of n-th I frame and the N+1 I frame, if between the time
It every being greater than time threshold, sends and instructs to the first packet loss submodule, otherwise send and instruct to the second packet loss submodule；
First packet loss submodule, for by the corresponding video frame of n-th I frame with the immediate P frame of the N+1 I frame and 2
A B frame carries out packet loss processing；
Second packet loss submodule, for carrying out all P frames in the corresponding video frame of n-th I frame and B frame at packet loss
Reason.
Beneficial effects of the present invention are as follows: the present invention provide a kind of method that pre- promotional items are inserted into network video and
System,.
Detailed description of the invention
Fig. 1 is a kind of flow chart for the method that pre- promotional items are inserted into network video of embodiment 1；
Fig. 2 is the flow chart of the step S6 of embodiment 2；
Fig. 3 is the flow chart of the step S5 of embodiment 3；
Fig. 4 is the flow chart of the step S1 of embodiment 4；
Fig. 5 is the flow chart of the step S4 of embodiment 5；
Fig. 6 is the flow chart of the step S42 of embodiment 5；
Fig. 7 is the structural block diagram of the server of embodiment 6；
Fig. 8 is the structural block diagram of the project association module of embodiment 7；
Fig. 9 is the structural block diagram of the packet loss processing module of embodiment 8.
Specific embodiment
Embodiment 1
The present invention provides a kind of method that pre- promotional items are inserted into network video, as shown in Figure 1, this method comprises:
S1: compiling video for the project promoted in advance, and is the addition of each video using project name as the video tab of label,
And it stores in the database；It can show that the project information to be promoted, relevant operation illustrate in the project video promoted in advance, project
Information Center includes size, color, company-information, price etc.；
S2: parsing network video, obtains each video frame for forming the network video, and is each view by playing sequence
Frequency frame is numbered；
S3: the I extracted in each video frame in order is auspicious, and the number of each I frame is corresponding with each number of video frames；
S4: judge whether n-th I frame and the N+1 I frame are video Abrupt change, and N >=1 is cut if not video mutation
It changes, carries out step S5, otherwise carry out step S7；
S5: by video frame corresponding to n-th I frame B frame and/or P frame carry out packet loss processing；
S6: pre- promotional items video video corresponding with the n-th I frame by step S5 processing is selected from database
Frame is associated；
S7: network video is played according to playing sequence.
The method provided by the invention that pre- promotional items are inserted into network video mainly parses video, extracts
I in each video frame is auspicious, and the similarity of adjacent two I frame is compared, if adjacent two I frame is similar, it is considered that two
A I frame to video frame be gradual change video frame, indicate two video frames indicate scene it is similar, in this way can two similar frames it
Between be inserted into the project promoted in advance, which includes but is not limited to common products & services project etc., such as clothes, furniture, object for appreciation
Tool, tableware etc. are not inserted into project between two frames if two neighboring I frame is dissimilar；Method provided by the invention is mainly examined
The daily viewing of the spectators of worry is accustomed to, generally when video Abrupt change be not present in the scene of one section of video, can to spectators with
Carry out feeling of fatigue, so F.F. processing will be carried out to this section of video, then the viewing that most spectators are mainly utilized in this method is practised
It is used, it is implanted into the project to be promoted in similar scene, the project of the promotion can be any products & services, major can supply
The commodity sales promotion of quotient's offer can be the commodity of major supermarket promotion, if there is video mutation to cut between general consecutive frame
It changes, then spectators have not needed interference in spectators' video, this time this method issues instruction, it is handled without inserted term purpose,
So method provided by the invention can be inserted into the project to be promoted on appropriate opportunity, and featured videos segment will not be interfered
Between switching, be inserted into project under the premise of spectators have visual fatigue due to referring to, the clicking rate of spectators can be improved indirectly；And
The project that the present invention will promote is inserted into the corresponding position of network video in the form of video, makes the project information to be promoted
Spectators are exposed directly to, clicking rate is further improved.
Embodiment 2
The embodiment of the present invention 2 provide the method that pre- promotional items are inserted into network video unlike the first embodiment,
As shown in Fig. 2, step S6 method specifically comprises the following steps:
S61: the I frame of the complete projects common to being separated out in n-th I frame and the N+1 I frame；
S62: the number of the complete projects common to judging carries out step if the number of shared complete projects is 1
The number of S63, shared complete projects are greater than 1, carry out step S64；
S63: one and the consistent video tab of the project name are selected from database according to the project name of complete projects
Corresponding video video frame corresponding with the n-th I frame by step S5 processing is associated；
S64: respectively by the shared complete projects being separated out in n-th I frame and the N+1 I frame in each I frame proportion
It does weighted average processing, obtains weighted average treated the project name of the corresponding complete projects of maximum value, then walked
Rapid S63.
The present invention further screens the project being inserted into network video, can guarantee to watch net in spectators in this way
When network video, it is unlikely to the vision conversion for having too big, ensure that fluency when viewing.
Embodiment 3
The embodiment of the present invention 3 provide the method that pre- promotional items are inserted into network video as different from Example 2,
As shown in figure 3, the specific method of step S5 includes the following steps:
S51: judging the time interval of n-th I frame and the N+1 I frame, if time interval is greater than time threshold, carries out
Otherwise step S52 carries out step S53；
S52: it will be carried out at packet loss in the corresponding video frame of n-th I frame with the immediate P frame of the N+1 I frame and 2 B frames
Reason；
S53: all P frames in the corresponding video frame of n-th I frame and B frame are subjected to packet loss processing.
When the present invention is inserted into project in corresponding position, further defines and how the sequence frame in video frame is carried out
The problems such as packet loss is handled, and not only be ensure that the fluency of viewing, and is also solved network delay.
Embodiment 4
The embodiment of the present invention 4 provide the method that pre- promotional items are inserted into network video as different from Example 3,
As shown in figure 4, step S1 method particularly includes:
Step S1 further includes following steps:
S11: the project information promoted in advance is implanted in two dimensional code；
S12: it is stabbed for load time display time of two dimensional code；
S13: stabbing for the pre- promotional items video load time, and the timestamp of itself and step S12 load is associated；
S14: the two dimensional code after association is shown in the form rolled.
The present invention further improves, and can load two dimensional code for the project promoted in advance, and shown on the screen, work as sight
When crowd scans the two-dimensional code, directly the promotional items of insertion can be shown in terminal, be browsed convenient for spectators, and will not delay
The viewing of video, improve for clicking rate.
Embodiment 5
The embodiment of the present invention 5 provide the method that pre- promotional items are inserted into network video as different from Example 4,
As shown in figure 5, the specific method is as follows by step S4:
S41: the ratio X of n-th I frame and the N+1 I frame is calculated, and is compared with fractional threshold, if ratio X is big
In fractional threshold, then step S7 is carried out, otherwise carries out step S42, ratio X is calculated as follows:
HNAnd HN+1Respectively indicate the histogram of the DC image of n-th I frame and the N+1 I frame；
S42: calculating the difference in n-th I frame, N+1 and the N+2 I frame between every adjacent two I frame, and handled,
And then judge whether n-th I frame and the N+1 I frame are video Abrupt change.
As shown in fig. 6, step S42 method particularly includes:
S421: the difference A of n-th I frame and the N+1 I frame is calculated separately1And the N+1 I frame and the N+2 I frame
Difference A2；
S422: by difference A1With difference A2Summation is done respectively and asks poor processing, obtains A respectivelyWithAnd ADifference；
S432: judge AWithWith the size of threshold value T1, and A is judgedDifferenceWith the size of threshold value T2, if AWith> threshold value T1, and ADifference
< threshold value T2 carries out step S7, if threshold value T2 < AWith、ADifference< threshold value T1, T1 > threshold value T2+ difference A1, carry out step S5.
The similarity that adjacent two frame is judged by above method, is remarkably improved judging efficiency.
Embodiment 6
The embodiment of the present invention 6 provides a kind of system that pre- promotional items are inserted into network video, as shown in fig. 7, this adds
Adding system includes server 1 and the database that communicates with server 1, and server 1 includes:
Project video editing module 10 for the project promoted in advance to be compiled video, and adds for each video with project
The video tab of entitled label, and store in the database；
Network video processing module 20 obtains each video for forming the network video for parsing to network video
Frame, and be that each video frame is numbered by playing sequence；
I frame abstraction module 30, auspicious for extracting the I in each video frame in order, the number and each video frame of each I frame are compiled
It is number corresponding；
Abrupt change judgment module 40, for judging whether n-th I frame and the N+1 I frame are video Abrupt change, N >=
1, if not video Abrupt change, packet loss instruction is sent to packet loss processing module 50, otherwise to network video playing module 70
Send play instruction in sequence；
Packet loss processing module 50, by video frame corresponding to n-th I frame and the N+1 I frame B frame and/or P frame into
The processing of row packet loss；
Project association module 60, for selecting a pre- promotional items video from database and passing through packet loss processing module 50
The corresponding video frame of n-th I frame of processing is associated；
Network video playing module 70, for playing network video according to playing sequence.
The system provided by the invention that pre- promotional items are inserted into network video mainly parses video, extracts
I in each video frame is auspicious, and the similarity of adjacent two I frame is compared, if adjacent two I frame is similar, it is considered that two
A I frame to video frame be gradual change video frame, indicate two video frames indicate scene it is similar, in this way can two similar frames it
Between be inserted into the project promoted in advance, which includes but is not limited to common products & services project etc., such as clothes, furniture, object for appreciation
Tool, tableware etc. are not inserted into project between two frames if two neighboring I frame is dissimilar；System provided by the invention is mainly examined
The daily viewing of the spectators of worry is accustomed to, generally when video Abrupt change be not present in the scene of one section of video, can to spectators with
Carry out feeling of fatigue, so F.F. processing will be carried out to this section of video, then the viewing that most spectators are mainly utilized in the system is practised
It is used, it is implanted into the project to be promoted in similar scene, the project of the promotion can be any products & services, major can supply
The commodity sales promotion of quotient's offer can be the commodity of major supermarket promotion, if there is video mutation to cut between general consecutive frame
It changes, then spectators in spectators' video, have not needed interference, therefore this system issues instruction, it is handled without inserted term purpose,
So system provided by the invention can be inserted into the project to be promoted on appropriate opportunity, and featured videos segment will not be interfered
Between switching, be inserted into project under the premise of spectators have visual fatigue due to referring to, the clicking rate of spectators can be improved indirectly；And
The project that the present invention will promote is inserted into the corresponding position of network video in the form of video, makes the project information to be promoted
Spectators are exposed directly to, clicking rate is further improved.
Embodiment 7
The embodiment of the present invention 7 provides a kind of system that pre- promotional items are inserted into network video, as shown in figure 8, project
Relating module 60 includes:
Separate submodule 61, for being separated out the I frame of complete projects common in n-th I frame and the N+1 I frame；
Judging submodule 62, for judging the number of common complete projects, if the number of shared complete projects
It is 1, Xiang Guanlian submodule 63 sends instruction, if the number of shared complete projects is greater than 1, obtains submodule to maximum value
Block 64 sends instruction；
It is associated with submodule 63, selects one and the project name one from database for the project name according to complete projects
The corresponding video of the video tab of cause video frame corresponding with the n-th I frame handled by packet loss processing module 50 is associated；
Maximum value acquisition submodule 64, the shared complete item for will be separated out in n-th I frame and the N+1 I frame respectively
Mesh proportion in each I frame does weighted average processing, obtains weighted average treated the corresponding complete projects of maximum value
Project name, right backward association submodule 63 send instruction.
The present invention further screens the project being inserted into network video, can guarantee to watch net in spectators in this way
When network video, it is unlikely to the vision conversion for having too big, ensure that fluency when viewing.
Embodiment 8
The embodiment of the present invention 8 provides a kind of system that pre- promotional items are inserted into network video, as shown in figure 9, packet loss
Processing module 50 includes:
Time interval judging submodule 51, for judging the time interval of n-th I frame and the N+1 I frame, if the time
Interval is greater than time threshold, sends and instructs to the first packet loss submodule 52, otherwise sends and instructs to the second packet loss submodule 53；
First packet loss submodule 52, for by the corresponding video frame of n-th I frame with the immediate P frame of the N+1 I frame
Packet loss processing is carried out with 2 B frames；
Second packet loss submodule 53, for carrying out all P frames in the corresponding video frame of n-th I frame and B frame at packet loss
Reason.
When the present invention is inserted into project in corresponding position, further defines and how the sequence frame in video frame is carried out
The problems such as packet loss is handled, and not only be ensure that the fluency of viewing, and is also solved network delay.
The present invention is not limited to above-mentioned preferred forms, anyone can show that other are various under the inspiration of the present invention
The product of form, however, make any variation in its shape or structure, it is all have communicate with the application or similar
Technical solution is within the scope of the present invention.
Claims (6)
1. a kind of method for being inserted into pre- promotional items in network video, which is characterized in that described method includes following steps:
S1: compiling video for the project promoted in advance, and is the addition of each video using project name as the video tab of label, and deposit
Storage is in the database；
S2: parsing network video, obtains each video frame for forming the network video, and is each video frame by playing sequence
It is numbered；
S3: extracting the I frame in each video frame in order, and the number of each I frame is corresponding with each number of video frames；
S4: judging whether n-th I frame and the N+1 I frame are video Abrupt change, N >=1, if not video Abrupt change,
Step S5 is carried out, step S7 is otherwise carried out；The specific method is as follows by step S4:
S41: calculating the ratio X of n-th I frame and the N+1 I frame, and be compared with fractional threshold, if ratio X greater than than
It is worth threshold value, then carries out step S7, otherwise carry out step S42, ratio X is calculated as follows:
HNAnd HN+1Respectively indicate the histogram of the DC image of n-th I frame and the N+1 I frame；
S42: the difference in n-th I frame, N+1 and the N+2 I frame between every adjacent two I frame is calculated, and is handled, in turn
Judge whether n-th I frame and the N+1 I frame are video Abrupt change；
S5: by video frame corresponding to n-th I frame B frame and/or P frame carry out packet loss processing；
Specific method described in step S5 includes the following steps:
S51: judging the time interval of n-th I frame and the N+1 I frame, if time interval is greater than time threshold, carries out step
Otherwise S52 carries out step S53；
S52: packet loss processing will be carried out with the immediate P frame of the N+1 I frame and 2 B frames in the corresponding video frame of n-th I frame；
S53: all P frames in the corresponding video frame of n-th I frame and B frame are subjected to packet loss processing；
S6: selected from database a pre- promotional items video and the corresponding video frame of n-th I frame that is handled by step S5 into
Row association；
S7: network video is played according to playing sequence.
2. the method for pre- promotional items is inserted into network video as described in claim 1, which is characterized in that described in step S6
Method specifically comprises the following steps:
S61: the I frame of the complete projects common to being separated out in n-th I frame and the N+1 I frame；
S62: the number of the complete projects common to judging carries out step S63 if the number of shared complete projects is 1,
The number of shared complete projects is greater than 1, carries out step S64；
S63: it is selected from database according to the project name of complete projects one corresponding with the consistent video tab of the project name
Video be associated with the corresponding video frame of n-th I frame by step S5 processing；
S64: by the shared complete projects being separated out in n-th I frame and the N+1 I frame, proportion adds in each I frame respectively
Weight average processing, obtains the project name of weighted average treated corresponding complete projects of maximum value, then carries out step
S63。
3. the method for pre- promotional items is inserted into network video as described in claim 1, which is characterized in that step S1 is also wrapped
Include following steps:
S11: the project information promoted in advance is implanted in two dimensional code；
S12: it is stabbed for load time display time of two dimensional code；
S13: it is stabbed for the pre- promotional items video load time, and it is associated with the timestamp loaded of step S 12；
S14: the two dimensional code after association is shown in the form rolled.
4. the method for pre- promotional items is inserted into network video as described in claim 1, which is characterized in that step S42's
Method particularly includes:
S421: the difference A of n-th I frame and the N+1 I frame is calculated separately1And the difference of the N+1 I frame and the N+2 I frame
A2；
S422: by difference A1With difference A2Summation is done respectively and asks poor processing, obtains A respectivelyWithAnd ADifference；
S432: judge AWithWith the size of threshold value T1, and A is judgedDifferenceWith the size of threshold value T2, if AWith> threshold value T1, and ADifference< threshold
Value T2 carries out step S7, if threshold value T2 < AWith、ADifference< threshold value T1, T1 > (threshold value T2+ difference A1), carry out step S5.
5. a kind of system for being inserted into pre- promotional items in network video, which is characterized in that the system comprises server (1) and
The database to communicate with the server (1), the server (1) include:
Project video editing module (10) for the project promoted in advance to be compiled video, and adds for each video with entry name
The referred to as video tab of label, and store in the database；
Network video processing module (20), for parsing to network video, acquisition forms each video frame of the network video,
And it is numbered by playing sequence for each video frame；
I frame abstraction module (30), for extracting the I frame in each video frame, the number and each number of video frames of each I frame in order
It is corresponding；
Abrupt change judgment module (40), for judging whether n-th I frame and the N+1 I frame are video Abrupt change, N >=1,
If not video Abrupt change, packet loss instruction is sent to packet loss processing module (50), otherwise to network video playing module
(70) play instruction in sequence is sent；
Packet loss processing module (50), by video frame corresponding to n-th I frame and the N+1 I frame B frame and/or P frame carry out
Packet loss processing；
The packet loss processing module (50) includes:
Time interval judging submodule (51), for judging the time interval of n-th I frame and the N+1 I frame, if between the time
It every being greater than time threshold, sends and instructs to the first packet loss submodule (52), otherwise send and instruct to the second packet loss submodule (53)；
First packet loss submodule (52), for by the corresponding video frame of n-th I frame with the immediate P frame of the N+1 I frame and 2
A B frame carries out packet loss processing；
Second packet loss submodule (53), for all P frames in the corresponding video frame of n-th I frame and B frame to be carried out packet loss processing
Project association module (60), for selecting a pre- promotional items video from database and passing through packet loss processing module (50)
The corresponding video frame of n-th I frame of processing is associated；
Network video playing module (70), for playing network video according to playing sequence.
6. the system of pre- promotional items is inserted into network video as claimed in claim 5, which is characterized in that the project is closed
Gang mould block (60) includes:
Separate submodule (61), for being separated out the I frame of complete projects common in n-th I frame and the N+1 I frame；
Judging submodule (62), for judging the number of common complete projects, if the number of shared complete projects is 1
A, Xiang Guanlian submodule (63) sends instruction, if the number of shared complete projects is greater than 1, obtains submodule to maximum value
Block (64) sends instruction；
It is associated with submodule (63), is selected from database for the project name according to complete projects one consistent with the project name
The corresponding video of video tab be associated with the corresponding video frame of n-th I frame by packet loss processing module (50) processing；
Maximum value acquisition submodule (64), the shared complete projects for will be separated out in n-th I frame and the N+1 I frame respectively
Proportion does weighted average processing in each I frame, obtains weighted average treated the item of the corresponding complete projects of maximum value
Mesh title, right backward association submodule (63) send instruction.
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