CN106385589A - Video and audio program multi-version playing method and system - Google Patents
Video and audio program multi-version playing method and system Download PDFInfo
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- CN106385589A CN106385589A CN201610807926.0A CN201610807926A CN106385589A CN 106385589 A CN106385589 A CN 106385589A CN 201610807926 A CN201610807926 A CN 201610807926A CN 106385589 A CN106385589 A CN 106385589A
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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
- H04N21/233—Processing of audio elementary streams
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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
- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
- H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
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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]
- H04N21/60—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
- H04N21/633—Control signals issued by server directed to the network components or client
- H04N21/6332—Control signals issued by server directed to the network components or client directed to client
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- Engineering & Computer Science (AREA)
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- Databases & Information Systems (AREA)
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- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The present invention provides a video and audio program multi-version playing method and system. The method comprises the following steps: a center end is configured to provide corresponding local materials for a plurality of play-cutting end; the center end needs the upper/lower play-cutting positions in the host video and audio program signal to add audio watermarking; the center end plays the host video and audio program and transmits the host video and audio program to a plurality of play-cutting ends; the play-cutting ends receive the host video and audio program signals and monitors and analyzes the audio watermarking; and when the play-cutting type in the audio watermarking is identified as the upper play-cutting identification, the outputting the host video and audio program signals are switched to the local material program signals, and when the play-cutting type in the audio watermarking is identified as the lower play-cutting identification, the output local material program signals are switched to the host video and audio program signals. The video and audio program multi-version playing method and system realize the automatic play cutting, are simple in control process and effective, and can mitigate the operators' mental stress.
Description
Technical field
The present invention relates to video-audio program broadcasts technical field, specifically say, be related to a kind of multi version of video-audio program
Broadcasting method and system.
Background technology
In video-audio program broadcasts, for example, in most commonly seen television broadcasting, video-audio program sends from television station,
Some relay base transfers typically to be passed through, reach end user.Such as satellite TV's program, is transferred to each relay base by satellite,
Relay base by modes such as cable networks, is delivered to end user again.Some relay in, due to some specific demands, need by
The part in video-audio program originally, is substituted for other broadcast items.The such as application such as some regional advertisements, will
Original advertisement, replaces with the advertisement of localization.This broadcast way, in the field of business referred to as cutting is broadcast.
The node that original video-audio program is replaced with local material may be collectively referred to as cutting broadcasts end.Cut the application broadcast very
Extensively, for example, television station is that a kind of cutting broadcasts end, when relaying the TV programme of a certain channel, the TV programme relayed is replaced
For local program, or the advertisement in former TV programme is replaced with local advertising.At present common practice is by manually being replaced
Change, broadcasted due to advertisement and there is certain regularity, when will broadcasting advertisement, locally broadcasted by staff's Non-follow control
And control cut bank, original broadcast items are substituted for the program of local broadcast, complete to replace work.This control mode
Shortcoming is it is impossible to accomplish precise control, in addition, larger pressure can be brought to operator.
Current network broadcasts also to commonly use to cut and broadcasts, and its section of broadcast mode is similar with section broadcast mode of television station, with television station
Except for the difference that, by network node, such as all kinds of CDN (Content Delivery Network, content distributing network) nodes are replaced
Television station.
With the improvement of living environment, occur in that the screen of open air, cell and office building broadcasts, these broadcast point can also
Broadcast end as a kind of cutting, when broadcasting some video and audios, cut and broadcast on local program.However, broadcasting for this kind of section, some are adopted
With storage mediums such as CD, flash memories, whole broadcast items are integrally replaced to zones of different, workflow is relatively cumbersome, for difference
Region when needing multi version to broadcast it is necessary to change different contents, increased the workload changing program, also considerably increase
The probability of error.
Content of the invention
In order to solve the deficiencies in the prior art, the invention provides the multi version broadcasting method of a kind of video-audio program and be
System, broadcasts for realizing automatically controlling cutting, and control mode is easy, effective, and discharges the pressure in Non-follow control for the operator.
For solving above-mentioned technical problem, a kind of multi version broadcasting method of video-audio program, comprise the following steps：
Center-side is broadcast end for multiple sections and is provided corresponding local material；
Center-side needs up/down to cut the corresponding up/down audio frequency water of position interpolation broadcast in host's video-audio program signal
Print, described up/down audio frequency watermark includes cutting broadcasts type identification, described section broadcast type identification be used for identifying section broadcast or lower section broadcast；
Center-side broadcasts described host's video-audio program, and is transferred to multiple sections and broadcasts end；
Broadcast end for the plurality of section and receive described host's video-audio program signal, export described host's video-audio program signal
When, monitor and parse described audio frequency watermark；
In described audio frequency watermark cut broadcast type identification be on cut broadcast mark when, will output described host's video and audio section
Mesh signal switches to the local material programme signal being provided by center-side；Broadcast under type identification is in cutting in described audio frequency watermark
Cut when broadcasting mark, the local material programme signal of output is switched to described host's video-audio program signal.
Preferably, the local material that center-side broadcasts end offer for each section is one or more, and according to described local material
Compile programme, wherein, in upper audio frequency watermark, also include described programme ID；
Cut and broadcast end when parsing described audio frequency watermark, obtain described programme ID；
Described host's video-audio program signal of output is being switched to the local material programme signal being provided by center-side
When, broadcast local material according to described programme.
Preferably, described up/down cuts the position broadcast is multipair, and each pair up/down is cut the position broadcast and corresponded to a local material
Broadcast slot, each broadcast slot correspond to a programme, the multiple sections of identical broadcast slot corresponding programme ID broadcasting end
Identical.
Preferably, need up/down to cut the position broadcast in host's video-audio program signal and add corresponding up/down audio frequency water
The step of print includes：
When host's video-audio program makes, the audio frequency watermark previously generating is added separately to described by editor module
The up/down of host's video-audio program file cuts the position broadcast；
Or,
When broadcasting described host's video-audio program by broadcasting module, cut over/under to broadcast position and control respectively and previously generate
Audio frequency watermark file broadcast；
By the media handling of rear end, cut in the up/down of the audio frequency of described host's video-audio program and broadcast position addition correspondence
Audio frequency watermark.
Preferably, need up/down to cut the position broadcast in host's video-audio program signal and add corresponding up/down audio frequency water
During print, cut the position interpolation audio frequency watermark broadcasting position first time period in described up/down in advance；Obtain cutting the sound broadcast in parsing
The described host's video-audio program signal exporting is cut by frequency watermark when obtaining local material programme signal through second time period
The local material programme signal being provided by center-side is provided.
Preferably, described up/down is cut and broadcast position is a position with predetermined amount of time, is added on the described scheduled time
Audio frequency watermark in section is multiple.
Preferably, described audio frequency watermark corresponds to the character string with multidigit character.
Present invention also offers a kind of multi version broadcast system of video-audio program, broadcast end including center-side with cutting, wherein,
Described center-side includes：
Audio frequency watermark generation module, cuts the audio frequency watermark file broadcasting position, wherein, described sound for generating corresponding up/down
Frequency watermark includes cutting broadcasts type identification, described section broadcast type identification be used for identifying section broadcast or lower section broadcast；
Audio frequency watermark add module, for being added to described audio frequency watermark in host's video-audio program signal；
Material provides module, and broadcasting end for multiple sections for broadcasting described host's video-audio program signal provides corresponding
Ground material；
Broadcast end for described section to include：
Monitoring parsing module；During exporting described host's video-audio program signal, monitor described host's video and audio
Programme signal, therefrom extracts audio frequency watermark and parses corresponding section and broadcast type identification；With
Local Control Module, in audio frequency watermark cut broadcast type identification be on cut broadcast mark when, will output described place
Main view audio program signal switches to local material programme signal；Cutting in described audio frequency watermark is broadcast type identification and is broadcast for lower section
During mark, the local material programme signal of output is switched to described host's video-audio program signal.
Preferably, described material provides module to include：
Material provides unit, provides its local material broadcasting for broadcasting end for multiple sections；With
Programme edit cell, cuts for basis and broadcasts the local corresponding programme of source material editing broadcasting in end, and be identical
Programme setting identical ID of period；
Wherein, when generating audio frequency watermark, described audio frequency watermark also includes described program to described audio frequency watermark generation module
Single ID.
Preferably, described audio frequency watermark add module includes：
Edit cell, for when host's video-audio program makes, the described audio frequency watermark file of merging and described host regard
Audio program files, thus the up/down that corresponding audio frequency watermark is added to described video-audio program is cut and is broadcast position；
Or
Play-out unit, for broadcasting video-audio program described in host, and cuts over/under and broadcasts position and control audio frequency watermark respectively
File broadcasts；With
Synthesis unit, for multi-media processing is carried out to the host's video-audio program broadcasting and audio frequency watermark file, thus
Audio frequency watermark is added in the audio frequency of described host's video-audio program.
Preferably, described monitoring parsing module includes：
Watermark extracting unit, for, in described host's video-audio program output procedure, monitoring described host's video and audio section
Mesh signal, and therefrom extract audio frequency watermark；With
Resolution unit, for parsing described audio frequency watermark, obtains corresponding section and broadcasts type identification and programme ID.
The present invention passes through to increase audio frequency watermark information in host's video-audio program, is needing cutting of multi version broadcast
Broadcast end, according to the audio watermark information of identification, the original video-audio program broadcasting is replaced with local video-audio program and broadcasts, or
Recover the broadcast of host's video-audio program and broadcast it is achieved that automatically cutting, and, control process is simple, effective, releases operation simultaneously
The stress of personnel.
Brief description
By the description to the embodiment of the present invention referring to the drawings, the above-mentioned and other purposes of the present invention, feature and
Advantage will be apparent from, in the accompanying drawings：
Fig. 1 is the overview flow chart of the multi version broadcasting method in one embodiment of the invention；
Fig. 2 is audio watermark information of the present invention corresponding character string implication schematic diagram；
Fig. 3 A is signal moment schematic diagram when adding audio frequency watermark in one embodiment of the invention；
Fig. 3 B is signal moment schematic diagram when extracting audio frequency watermark, switching broadcasting signal in one embodiment of the invention；
Fig. 4 is the structure principle chart of multi version broadcast system embodiment one of the present invention；
Fig. 5 is principle and its structural representation of one embodiment of the invention sound intermediate frequency watermark add module；
Fig. 6 is principle and its structural representation of another embodiment of the present invention sound intermediate frequency watermark add module；
Fig. 7 is the structure principle chart of monitoring parsing module of the present invention.
Fig. 8 is that cutting in multi version broadcast system embodiment two of the present invention broadcasts the structure principle chart at end.
Specific embodiment
As shown in figure 1, the overview flow chart for the multi version broadcasting method in one embodiment of the invention.In the present embodiment
In, described multi version broadcasting method mainly includes two major parts, and Part I is the processing procedure in center-side, and Part II is
Cutting the processing procedure broadcasting end.Wherein, from center-side by described host's video-audio program signal transmission to cut broadcast the mode at end can
According to center-side, cut broadcast end and host's video-audio program signal (file) form different, do not do emphasis in the present invention
Explanation.
Specifically, in center-side, comprise the following steps：
Step S11, center-side provides corresponding local material for broadcasting multiple sections of host's video-audio program and broadcasting end.For example
There is provided different ad material etc. for zones of different, and these materials are distributed to each section and broadcast end.
Step S12, finding in host's video-audio program signal needs up/down to cut the position broadcast, such as sometime.
Step S13, cuts the position broadcast respectively over/under and adds corresponding up/down audio frequency watermark.Wherein, described up/down sound
Frequency watermark includes cutting broadcasts type identification, described section broadcast type identification be used for identifying cut broadcast or lower section broadcast, to determine for section broadcasting to hold
This moment fixed is that host's video-audio program replaces with the local material specified, or the local material broadcasting is replaced back
Original host's video-audio program.
Step S14, center-side broadcasts the described host's video-audio program having added audio frequency watermark, and is transferred to the plurality of
Cut and broadcast end.
Broadcast end cutting：
Step S21, receives and stores the local material sending from center-side.
Step S22, receives and exports the host's video-audio program signal sending from center-side.
In output procedure, step S23, whether monitoring has audio frequency watermark, such as in described host's video-audio program signal
Fruit has monitored audio frequency watermark, described audio frequency watermark is extracted and parses, and obtains cutting in described audio frequency watermark and broadcasts type
Mark.
Step S24, in described audio frequency watermark cut broadcast type identification be on cut broadcast mark when, currently extract is
Upper audio frequency watermark, described host's video-audio program signal of output is switched to the corresponding local material section being provided by center-side
Mesh signal.
Step S25, when cutting in described audio frequency watermark is broadcast type identification and is broadcast mark for lower section, the local material that will export
Programme signal switches to described host's video-audio program signal.
Wherein, the audio frequency watermark in the present invention can adopt the audio frequency watermark of various ways, as a preferable embodiment,
The present invention selects the digital watermarking of strong antijamming capability.Because this audio frequency watermark is by human ear, (in general, human ear can be known
Other sound frequency is at 20 20000 hertz) the unrecognizable frequency increase marking is no too big to the original tonequality of audio file
Impact, thus human ear its impact imperceptible, so audio frequency watermark does not affect the auditory perception to program for the spectators.
The present invention, using by increasing audio frequency watermark information in host's video-audio program, broadcasts needing multi version
Cut and broadcast end, according to the audio watermark information of identification, host's video-audio program signal of original output is replaced with local material
Programme signal, or recover host's video-audio program signal.Achieve automatically to cut and broadcast, and control process is simple, efficiently.
In step s 11, when only having a pair of up/down to cut the position broadcast in host's video-audio program, that is, only one of which is cut and is broadcast
Period, and the material locally broadcasting also only one of which when, audio frequency watermark only need to include cut broadcast type identification.But, when
When situation is complicated, if any multiple sections of sowing time sections, each period locally has multiple materials will broadcast, and now, cuts for convenience and broadcasts end
Find the local material needing to broadcast, center-side is broadcast end, needs the local of broadcast in a certain period always according to being distributed to described cutting
Material, makes corresponding programme, and is provided with unique identity, be i.e. a programme has unique ID, and same section
The programme ID that sowing time section uses is identical, but particular content can broadcast the needs at end according to each section and different.Work as conduct
The video-audio program of host with the addition of multipair audio frequency watermark, that is, when there is multipair up/down cutting the position broadcast, different sowing time sections of cutting
Programme ID is different.Thus, in step s 12, multipair audio frequency watermark can be added, in each pair audio frequency watermark, broadcast including cutting
Type identification and programme ID.
In the specific implementation, audio frequency watermark corresponding has the character string of multidigit character, as an embodiment, such as Fig. 2
Shown, this character string arranges a field, broadcasts type identification for cutting, for example, represent this audio frequency water with a bit 1
Print is corresponding to be that upper cutting broadcasts position, representing that this audio frequency watermark is corresponding with 0 is lower section and broadcasts, and obtains after end is detected and parsed when cutting to broadcast
When this field is 1, output signal is switched to local material programme signal, and when this field obtaining after detection parsing is 0,
Again output signal is switched to former host's video-audio program signal.Cut broadcast type id field after be programme ID, such as one
The character string of 16.
Accordingly, cut broadcast end, in step S23, parse described audio frequency watermark when, obtain cut broadcast type identification
Meanwhile, described programme ID can also be obtained.
In step s 24, corresponding provided by center-side switching to described host's video-audio program signal of output
Local material programme signal when, according to described programme ID, find the programme of storage inside and local playing material, according to
Described programme broadcasts local material, thus obtaining local material programme signal.
Because system is when parsing audio frequency watermark and triggering corresponding device action, need the regular hour, thus, center
End is cut when broadcasting position interpolation audio frequency watermark over/under, cuts the position interpolation sound broadcasting position first time period in described up/down in advance
Frequency watermark.Fig. 3 A is signal moment schematic diagram when adding audio frequency watermark in one embodiment of the invention.Described transverse axis represents signal
Moment, for convenience of the prominent moment, omit programme signal in the figure.Wherein, moment T1 is that theoretic upper cutting broadcasts position, that is,
Audio frequency watermark should be added in theory at moment T1.Broadcast the process time at end in view of cutting, such as extract audio frequency watermark, parsing and
Equipment operation, puies forward previous time period t 1, adds audio frequency watermark at moment T2.
Cut and broadcast end in parsing, as shown in Figure 3 B, be in one embodiment of the invention, to extract audio frequency watermark, switching output letter
Number when signal moment schematic diagram.Monitor audio frequency watermark in moment T2, through extraction, the parsing of audio frequency watermark, and controlled
Local material broadcasts accordingly, through time period t 2', obtains local material programme signal, time period t 2' in moment T3
There is uncertainty, may be different because of various factors.In order to make signal successful switch in theoretical moment T1.
The present invention has also reserved second time period t2, that is, after extracting, parse, play etc. and processing, obtains local material in moment T3
During programme signal, now do not switch at once, but in one time period t 2 of wait, then switch over.Make t2+t2'=t1,
In the specific implementation, t1 is typically set to several seconds, such as 5 seconds, broadcasts end and is repeatedly tested cutting, thus learning t2', such as 3 seconds, and
Afterwards according to default t1, determine that the concrete time of the time period t 2 waiting is 2 seconds.So that actual switching instant T4 and theory
Moment, T1 was identical.By the cooperation of t1 and t2 it is ensured that section frame broadcast a little is accurate.Lower section of situation about broadcasting is similar, is not repeated
Explanation.
Preferably, it is anti-leak-stopping prison audio frequency watermark, as a preferable embodiment, the up/down in the present embodiment is cut and broadcast position
It is set to a very short time period, add to consecutive intervals multiple identical audio frequency watermarks when this time period standby as safety
Part.The described time period can be manually set.
In step s 13, add the mode of audio frequency watermark for example：When host's video-audio program makes, will previously generate
Audio frequency watermark the position broadcast is cut by the up/down that editor module is added separately to described host's video-audio program file；Or,
By broadcast module control broadcast described host's video-audio program when, be multicast to up/down cut broadcast position when, control pre- Mr. respectively
The audio frequency watermark file becoming broadcasts；By the media handling of rear end, cut in the up/down of the audio frequency of described host's video-audio program and broadcast
Position adds corresponding audio frequency watermark.
A kind of present invention also offers multi version broadcast system of video-audio program, as shown in figure 4, the reality for described system
Apply example one, for the broadcast of IP stream.Specifically, described system includes center-side 1 and cuts and broadcast end 2, wherein, described center-side bag
Include：
Audio frequency watermark generation module 11, cuts, for generating corresponding up/down, the audio frequency watermark file broadcasting position, wherein, described
Audio frequency watermark includes cutting broadcasts type identification, described section broadcast type identification be used for identifying section broadcast or lower section broadcast；
Audio frequency watermark add module 12, for being added to described audio frequency watermark in host's video-audio program signal；With
Material provides module 13, and broadcasting end for multiple sections for broadcasting video-audio program provides corresponding local material, and
Material is sent to cut and broadcasts end 2；
Broadcast end 2 for described section to include：
Monitoring parsing module 21；During exporting described host's video-audio program signal, monitor described host and regard sound
Frequency programme signal, therefrom extracts audio frequency watermark, and parses corresponding up/down and cut cutting of broadcasting and broadcast type identification；With
Local Broadcast Control handover module 22, cutting in audio frequency watermark broadcast type identification be on cut broadcast mark when, by broadcast
Described host's video-audio program signal switches to local material programme signal；Broadcast type mark in solution cutting in described audio frequency watermark
Know when broadcasting mark for lower section, the local material programme signal broadcasted is switched to described host's video-audio program signal.
Alternatively, cut and broadcast end and 2 also include local material memory module 23, for storage from center-side 1 send local
Material.
Described audio frequency watermark generation module 11 has special audio watermark by the generation of audio watermarking algorithm and (has not
Character string with implication field) audio frequency watermark file, audio frequency watermark therein includes corresponding to up/down respectively cutting broadcasts position
Up/down audio frequency watermark.In one embodiment, the corresponding character string of described audio frequency watermark broadcasts type mark as shown in Fig. 2 including cutting
Character learning section and programme id field.
Audio frequency watermark add module 12 is used for described audio frequency watermark is added in host's video-audio program signal.Its
In, as shown in Figure 5 and Figure 6, Fig. 5 and Fig. 6 corresponds to two kinds of audio frequency watermark addition manners to the mode of interpolation respectively.
As shown in figure 5, audio frequency watermark add module 12 includes an edit cell 121, described edit cell 121 such as
Conventional software for editing in a little television stations.Corresponding audio frequency watermark file is added to by program material by this edit cell 121
In file (being obtained by described program making module E1), thus cut in corresponding up/down broadcasting the corresponding audio frequency watermark of position increase.
As shown in fig. 6, audio frequency watermark add module 12 can also include play-out unit 122 and synthesis unit 123, described broadcast
Go out unit 122 for broadcast described host's video-audio program of having made, and cut over/under and broadcast position and broadcast audio frequency respectively
Watermark file.In rear end, media handling is carried out to broadcast video-audio program file and audio frequency watermark file by combining unit 123,
Thus adding audio frequency watermark in the audio frequency of described video-audio program.
Wherein, either pass through the edit cell 121 (software for editing) in Fig. 5, or the combining unit in Fig. 6 123,
During program making process or broadcast, by encoding and decoding technique, audio frequency watermark file and program file are merged, thus
Up/down is cut and is broadcast the corresponding audio frequency watermark of position increase.
Described material provides module 13 to include material and provides unit 131 and programme edit cell 132.Wherein, material carries
For unit 131, provide its local material broadcasting for broadcasting end for multiple sections.Wherein, according to cut broadcast end need difference, for it
The material providing may identical it is also possible to different.And end can be broadcast for same section, different sowing time sections of cutting provide different cutting to broadcast element
Material.Programme edit cell 132 is used for basis section and broadcasts the local corresponding programme of source material editing broadcasting in end, and when being identical
Section, the different sections of programmes broadcasting end arrange identical ID.
Program in the present invention broadcasts transport module E2 and is streamed to the IP that with the addition of the video-audio program of audio frequency watermark
Corresponding cutting broadcasts end.
Cut after broadcasting the IP stream that end 2 receives this video-audio program, broadcasted by local Broadcast Control handover module 22, simultaneously monitoring solution
Analysis module 21 monitors described host's video-audio program signal.Specifically, described monitoring parsing module 21 is as shown in fig. 7, comprises water
Print extraction unit 211 and resolution unit 212, wherein, host's video-audio program that described watermark extracting unit 211 monitoring receives
Signal, and audio frequency watermark is intactly extracted from the audio frequency of former host file according to watermark extraction algorithm；Described resolution unit
212 are used for parsing described audio frequency watermark, obtain a corresponding multidigit character string, and broadcast type field according to described section, determine
The up/down of present video watermark is cut and is broadcast type, and according to programme id field, determines present period local material section to be broadcasted
Mesh list, cuts according to the up/down of described audio frequency watermark and broadcasts type, and corresponding information is sent to described local Broadcast Control handover module
22.
Local Broadcast Control module 22 receives the information that monitoring parsing module 21 sends, if described control signal includes cutting
Broadcast information, stop the broadcast to former host's video-audio program signal, according to the programme ID in information, according to programme, from this
Find corresponding material in ground material memory module 23, and then broadcast described local material, will former host's video-audio program letter
Number switch to local material programme signal.During broadcasting local material, monitoring parsing module 21 continues to monitor former host
Video-audio program signal, if monitoring audio frequency watermark, and is therefrom resolved to down to cut and broadcasts mark, then send that information to described
Local Broadcast Control module 22.Described local Broadcast Control module 22 broadcasts mark according to lower section, stops broadcasting described local material, and then continues
Output host's video-audio program signal.
Application example one for the system embodiment shown in Fig. 4：Video and audio advertisement large-size screen monitors, the video and audio of mobile terminal etc.
Program multi version broadcasts.
Video and audio screen for example in the giant-screen or elevator of cell or office building, major part is advertising company's fortune
Battalion broadcasts some little programs and advertisement.Advertisement major part therein is the same, but there have some to have in zones of different to be different
Broadcast and require.For example, the screen managed in the same advertiser in somewhere, the program that may have 50% is unified advertisement, but right
In the different region in this area, may there is the demand that other 50% multi version having local advertising broadcasts.For example, broadcast in cell A
Go out the advertising programme related to this cell A, broadcast the advertising programme related to cell B in cell B.Wherein, the advertisement of this area
What company was located sends the machine room of described advertising programme or holds centered on broadcasting room, the broadcast child node of each cell or office building
Broadcast end for cutting, center-side adds audio frequency watermark in the advertising programme being sent to each section and broadcasting end, and by each cell or writes
Building needs to cut the advertisement broadcast and programme is distributed to each cell or the broadcast child node of office building.In each cell or office building
During the advertising programme that playout center end sends, monitor whether audio frequency watermark, if monitoring audio frequency watermark, having extracted and parsing,
According to the programme in audio frequency watermark, current advertising programme is replaced with this district advertisement program.After broadcasting a period of time,
If monitoring audio frequency watermark from former advertising programme, broadcast mark according to lower section therein, by this currently playing district advertisement
Program replaces with former advertising programme.Home cell advertising programme is the advertisement adapting to this cell, with other cells or office building not
With.
Application example two for the system embodiment shown in Fig. 4：Network video-audio program broadcast in for different nets
The multi version of network node broadcasts
The present disclosure additionally applies for network broadcasts, wherein, cut and broadcast end for different network nodes or CDN node.It broadcasts
Process is similar with application example one, is not repeated.
Wherein, in above-mentioned application example, cut and broadcast end and can broadcast that control program realize monitoring, stream is broadcast by specific
The switching going out and flowing.
As shown in figure 8, cutting, in the multi version broadcast system embodiment two of video-audio program of the present invention, the knot broadcasting end
Structure principle schematic.In this example, described center-side is higher level television station or referred to as former television station, concrete structure and Fig. 4 institute
The embodiment shown is similar to, thus, it is not repeated.Cutting in the present embodiment broadcasts end for television station of subordinate or referred to as relay
Television station.
Former television station needs to cut the local advertising broadcast by each rebroadcast television and its programme is sent to each and relays electricity
Television stations, each rebroadcast television receives and stores local advertising program and corresponding programme.Former television station is in host's video and audio
Need in programme signal to add upper audio frequency watermark by the position that local advertising is replaced, needing to terminate the position that local advertising broadcasts
Put place and add subaudio frequency watermark, broadcast host's video-audio program, and be transferred to each rebroadcast television, its transmission means does not limit,
As satellite transmission, fiber-optic transfer etc..
Wherein, upper audio frequency watermark includes cutting and broadcasts mark and programme ID, and subaudio frequency watermark includes lower section to be broadcast mark and (can wrap
Include or do not include programme ID).
The host signal of rebroadcast television receive output module E3 and local program playing device E4 respectively with cut bank E5
Connect, described cut bank is controlled by Local Control Module 22a, determine which signal output.Under normal circumstances, described cut bank
Connect host signal and receive output module E3, host's video/audio signal is exported.Monitoring parsing module 21a monitoring described host letter
The signal that number reception output module E3 receives, has monitored whether audio frequency watermark, if monitoring audio frequency watermark, having extracted and parsing,
Send information to Local Control Module 22a, described Local Control Module 22a broadcasts mark and programme according to upper cutting in audio frequency watermark
ID, controls local program to broadcast the local material that module E4 is broadcasted according to programme in local material memory module, obtains local
Material programme signal, described Local Control Module 22a simultaneously controls cut bank E5, and output signal is believed by current host's video and audio
Number replace with local material programme signal, such as local advertising or local news.When local advertising or local news broadcast one section
Between after, if monitoring parsing module 21a monitors audio frequency watermark from host's video/audio signal, and parse and obtain lower section and broadcast mark
Know, send that information to described Local Control Module 22a, described Local Control Module 22a controls cut bank E5, by output letter
Number host's video/audio signal is switched to by local advertising or local news.
The present invention is for less or economic condition underdeveloped subordinate area is very useful at some.These areas are broadcast
The demand of one's respective area news, but have no ability to independently build a channel.After using method of the present invention, by higher level
The single channel of regional construction one, that is, correspond to the center-side in the present invention, and the section in higher level region is broadcasted in subordinate ground region at ordinary times
Mesh, that is, broadcast identical program.In the period broadcasting news, local domain news is each broadcasted in each subordinate area.As a city
Build a district channel, this channel all relayed by the radio relay broadcasting station in each district at ordinary times, the section of this channel that each district is watched
Mesh is just as.In specific information slot, the radio relay broadcasting station in each district broadcasts the news in oneself district, and replaces host
Program exports, and the program that each district is seen is different.
The method and system that there is provided by the above present invention is it is achieved that cutting in television relay broadcasts automatically it is no longer necessary to work
Make personnel to switch by hand, release the stress of staff.
According to embodiments of the invention as described above, these embodiments do not have all of details of detailed descriptionthe, not yet
Limit the specific embodiment that this invention is only described.Obviously, as described above, can make many modifications and variations.This explanation
Book is chosen and is specifically described these embodiments, is to preferably explain the principle of the present invention and practical application, so that affiliated
Technical field technical staff can utilize the present invention and modification on the basis of the present invention to use well.The protection model of the present invention
Enclose and should be defined by the scope that the claims in the present invention are defined.
Claims (10)
1. a kind of multi version broadcasting method of video-audio program, wherein, comprises the following steps：
Center-side is broadcast end for multiple sections and is provided corresponding local material；
Center-side needs up/down to cut the corresponding up/down audio frequency watermark of position interpolation broadcast, institute in host's video-audio program signal
State up/down audio frequency watermark and include cutting and broadcast type identification, described section broadcast type identification be used for identifying section broadcast or lower section broadcast；
Center-side broadcasts described host's video-audio program, and is transferred to multiple sections and broadcasts end；
Broadcast end for the plurality of section and receive described host's video-audio program signal, when exporting described host's video-audio program signal,
Monitor and parse described audio frequency watermark；
Cutting in described audio frequency watermark broadcast type identification be on cut broadcast mark when, by described host's video-audio program letter of output
Number switch to the local material programme signal being provided by center-side；Cutting in described audio frequency watermark is broadcast type identification and is broadcast for lower section
During mark, the local material programme signal of output is switched to described host's video-audio program signal.
2. the multi version broadcasting method of video-audio program as claimed in claim 1, wherein, center-side is broadcast end for each section and is provided
Local material be one or more, and programme is become according to described local source material editing, wherein, also includes in upper audio frequency watermark
Described programme ID；
Cut and broadcast end when parsing described audio frequency watermark, obtain described programme ID；
When described host's video-audio program signal of output is switched to the local material programme signal being provided by center-side, press
Broadcast local material according to described programme.
3. the multi version broadcasting method of video-audio program as claimed in claim 2, wherein, described up/down is cut the position broadcast and is
Multipair, each pair up/down is cut corresponding one of the position broadcast and is cut the broadcast slot broadcasting end, and each broadcast slot corresponds to a programme,
The multiple sections of identical broadcast slot corresponding programme ID broadcasting end are identical.
4. the multi version broadcasting method of video-audio program as claimed in claim 1, wherein, in host's video-audio program signal
The step that up/down cuts the corresponding up/down audio frequency watermark of position interpolation broadcast is needed to include：
When host's video-audio program makes, the audio frequency watermark previously generating is added separately to described host by editor module
The up/down of video-audio program file cuts the position broadcast；
Or,
When broadcasting described host's video-audio program by broadcasting module, cut over/under and broadcast position and control the sound previously generating respectively
Frequency watermark file is broadcasted；
By the media handling of rear end, cut in the up/down of the audio frequency of described host's video-audio program and broadcast the corresponding sound of position addition
Frequency watermark.
5. the multi version broadcasting method of described video-audio program as arbitrary in claim 1-4, wherein, in host's video-audio program
When needing up/down to cut the position broadcast and add corresponding up/down audio frequency watermark in signal, cut in described up/down in advance and broadcast position the
Audio frequency watermark is added in the position of one time period；Obtain cutting the audio frequency watermark broadcast and obtaining local material programme signal in parsing
When, through second time period, the described host's video-audio program signal exporting is switched to the local material section being provided by center-side
Mesh signal.
6. the multi version broadcasting method of described video-audio program as arbitrary in claim 1-4, wherein, described up/down is cut and is broadcast position
It is set to a position with predetermined amount of time, the audio frequency watermark being added in described predetermined amount of time is multiple.
7. the multi version broadcasting method of video-audio program as claimed in claim 1, wherein, described audio frequency watermark corresponds to be had
The character string of multidigit character.
8. the multi version broadcast system of a kind of video-audio program, broadcasts end including center-side with cutting, wherein, described center-side includes：
Audio frequency watermark generation module, cuts, for generating corresponding up/down, the audio frequency watermark file broadcasting position, wherein, described audio frequency water
Print includes cutting broadcasts type identification, described section broadcast type identification be used for identifying section broadcast or lower section broadcast；
Audio frequency watermark add module, for being added to described audio frequency watermark in host's video-audio program signal；
Material provides module, and broadcasting end for multiple sections for broadcasting described host's video-audio program signal provides corresponding local element
Material；
Broadcast end for described section to include：
Monitoring parsing module；During exporting described host's video-audio program signal, monitor described host's video-audio program
Signal, therefrom extracts audio frequency watermark and parses corresponding section and broadcast type identification；With
Local Control Module, in audio frequency watermark cut broadcast type identification be on cut broadcast mark when, by output described host regard
Audio program signal switches to local material programme signal；Cutting in described audio frequency watermark is broadcast type identification and is broadcast mark for lower section
When, the local material programme signal of output is switched to described host's video-audio program signal.
9. the multi version broadcast system of video-audio program as claimed in claim 8, wherein, described material provides module to include：
Material provides unit, provides its local material broadcasting for broadcasting end for multiple sections；With
Programme edit cell, for broadcasting the local corresponding programme of source material editing broadcasting in end according to cutting, and is the identical period
Programme setting identical ID；
Wherein, when generating audio frequency watermark, described audio frequency watermark also includes described programme ID to described audio frequency watermark generation module；
Described monitoring parsing module includes：
Watermark extracting unit, for, in described host's video-audio program output procedure, the described host's video-audio program of monitoring is believed
Number, and therefrom extract audio frequency watermark；With
Resolution unit, for parsing described audio frequency watermark, obtains corresponding section and broadcasts type identification and programme ID.
10. the multi version broadcast system of video-audio program as claimed in claim 8, wherein, described audio frequency watermark add module
Including：
Edit cell, for when host's video-audio program makes, merging described audio frequency watermark file and described host's video and audio
Program file, thus the up/down that corresponding audio frequency watermark is added to described video-audio program is cut and is broadcast position；
Or
Play-out unit, for broadcasting video-audio program described in host, and cuts over/under and broadcasts position and control audio frequency watermark file respectively
Broadcast；With
Synthesis unit, for multi-media processing is carried out to the host's video-audio program broadcasting and audio frequency watermark file, thus in institute
State addition audio frequency watermark in the audio frequency of host's video-audio program.
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