CN106385589B - The multi version broadcasting method and system of video-audio program - Google Patents
The multi version broadcasting method and system of video-audio program Download PDFInfo
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- CN106385589B CN106385589B CN201610807926.0A CN201610807926A CN106385589B CN 106385589 B CN106385589 B CN 106385589B CN 201610807926 A CN201610807926 A CN 201610807926A CN 106385589 B CN106385589 B CN 106385589B
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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
-
- 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
-
- 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
Abstract
The invention discloses the multi version broadcasting methods and system of a kind of video-audio program, wherein the described method comprises the following steps: center-side broadcasts end for multiple sections and provides corresponding local material；Center-side needs up/down to cut the position addition audio frequency watermark broadcast in host's video-audio program signal；Center-side broadcasts host's video-audio program, and is transferred to multiple sections and broadcasts end；It broadcasts end for the multiple section and receives host's video-audio program signal, monitor and parse the audio frequency watermark；It is upper section when broadcasting mark that cutting in the audio frequency watermark, which broadcasts type identification, and host's video-audio program signal of output is switched to by local material programme signal；It is lower section when broadcasting mark that cutting in the audio frequency watermark, which broadcasts type identification, and the local material programme signal of output is switched to host's video-audio program signal.The present invention realizes automatic cut and broadcasts, and control process is simple, efficient, while alleviating the stress of operator.
Description
Technical field
The present invention relates to video-audio programs to broadcast technical field, specifically says, is related to a kind of multi version of video-audio program
Broadcasting method and system.
Background technique
In video-audio program broadcast, for example, video-audio program is issued from TV station in most commonly seen television broadcasting,
Generally to pass through some relay base transfers, reach end user.Such as satellite TV's program, each relay base is transferred to by satellite,
Relay base by modes such as cable networks, is transmitted to end user again.Some relay in, due to some specific demands, need by
A part in video-audio program originally, is substituted for other broadcast items.Such as the application such as some regional advertisements, it will
Original advertisement replaces with the advertisement of localization.This broadcast way, in the field of business referred to as cut are broadcast.
The node that original video-audio program replaces with local material may be collectively referred to as cutting and broadcast end.Cut the application broadcast very
Extensively, for example, TV station is that a kind of cut broadcasts end, when relaying the TV programme of a certain channel, the TV programme of relay are replaced
For local program, or the advertisement in former TV programme replaced with into local advertising.Common practice is by manually being replaced at present
It changes, being broadcasted due to advertisement, there is certain regularity to manually control local broadcast by staff when advertisement to be broadcasted
And cut bank is controlled, original broadcast items are substituted for the program locally broadcasted, complete replacement work.This control mode
The disadvantage is that can not accomplish accurately to control, in addition, biggish pressure can be brought to operator.
Current network broadcast, which is also commonly used to cut, to be broadcast, and section broadcast mode is similar with section broadcast mode of TV station, with TV station
Unlike, by network node, such as all kinds of CDN (Content Delivery Network, content distributing network) node is replaced
TV station.
With the improvement of living environment, the screen for outdoor, cell and office building occur is broadcasted, these broadcast point can also be with
It is cut as one kind and broadcasts end, when broadcasting certain 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, different zones are integrally replaced with whole broadcast items, workflow is relatively cumbersome, for difference
Region when multi version being needed to broadcast, it is necessary to replace different contents, increase the workload of replacement program, also considerably increase
The probability of error.
Summary of the invention
In order to solve the deficiencies in the prior art, the present invention provides a kind of multi version broadcasting method of video-audio program and it is
System is broadcast for realizing automatically controlling to cut, and control mode is easy, effective, and discharges pressure of the operator when manually controlling.
In order to solve the above technical problems, a kind of multi version broadcasting method of video-audio program, comprising the following steps:
Center-side broadcasts end for multiple sections and provides corresponding local material；
Center-side needs up/down to cut the corresponding up/down audio water of position addition broadcast in host's video-audio program signal
Print, the up/down audio frequency watermark include cutting to broadcast type identification, broadcast type identification for described section and section broadcast or lower section is broadcast for identifying；
Center-side broadcasts host's video-audio program, and is transferred to multiple sections and broadcasts end；
It broadcasts end for the multiple section and receives host's video-audio program signal, exporting host's video-audio program signal
When, it monitors and parses the audio frequency watermark；
It is upper section when broadcasting mark that cutting in the audio frequency watermark, which broadcasts type identification, by host's video and audio section of output
Mesh signal is switched to the local material programme signal provided by center-side；Cutting in the audio frequency watermark is broadcast under type identification is
It cuts when broadcasting mark, the local material programme signal of output is switched to host's video-audio program signal.
Preferably, center-side is each section to broadcast the local material that provides of end is one or more, and according to the local material
Compile program listing, wherein further include the program listing ID in upper audio frequency watermark；
It cuts and broadcasts end when parsing the audio frequency watermark, obtain the program listing ID；
Host's video-audio program signal of output is being switched to the local material programme signal provided by center-side
When, local material is broadcasted according to the program listing.
Preferably, it is multipair, the local material in corresponding one of the position that each pair of up/down section is broadcast that the up/down, which cuts the position broadcast,
Broadcast slot, the corresponding program listing of each broadcast slot, the multiple sections of corresponding program listing ID of identical broadcast slot for broadcasting end
It is identical.
Preferably, it needs up/down to cut the position broadcast in host's video-audio program signal and adds corresponding up/down audio water
The step of print includes:
In the production of host's video-audio program, pre-generated audio frequency watermark is added separately to by editor module described in
The up/down of host's video-audio program file cuts the position broadcast；
Or,
By broadcast module broadcast host's video-audio program when, cut over/under broadcast position control respectively pre-generate
Audio frequency watermark file broadcast；
By the media handling of rear end, is cut in the up/down of the audio of host's video-audio program and broadcast position addition correspondence
Audio frequency watermark.
Preferably, it needs up/down to cut the position broadcast in host's video-audio program signal and adds corresponding up/down audio water
When print, the position addition audio frequency watermark for broadcasting position first time period is cut in the up/down in advance；It obtains cutting the sound broadcast in parsing
Frequency watermark and when obtaining local material programme signal, cuts host's video-audio program signal of output by second time period
The local material programme signal provided by center-side is provided.
Preferably, it is the position with predetermined amount of time that the up/down, which cuts and broadcasts position, is added in the predetermined time
Audio frequency watermark in section is multiple.
Preferably, the audio frequency watermark corresponds to the character string with multidigit character.
The present invention also provides a kind of multi version broadcast system of video-audio program, including center-side and cuts and broadcasts end, wherein
The center-side includes:
Audio frequency watermark generation module broadcasts the audio frequency watermark file of position for generating corresponding up/down section, wherein the sound
Frequency watermark includes cutting to broadcast type identification, broadcasts type identification for described section and section broadcasts or lower section is broadcast for identifying；
Audio frequency watermark adding module, for the audio frequency watermark to be added in host's video-audio program signal；
Material provides module, provides corresponding for broadcasting end for multiple sections of broadcast host's video-audio program signal
Ground material；
Broadcasting end for described section includes:
Monitor parsing module；During exporting host's video-audio program signal, host's video and audio is monitored
Programme signal therefrom extracts audio frequency watermark and parses corresponding section and broadcasts type identification；With
Local Control Module, it is upper section when broadcasting mark that cutting in audio frequency watermark, which broadcasts type identification, by the place of output
Main view audio program signal is switched to local material programme signal；Cutting in the audio frequency watermark is broadcast type identification and is broadcast for lower section
When mark, the local material programme signal of output is switched to host's video-audio program signal.
Preferably, the material offer module includes:
Material provides unit, provides its material locally broadcasted for broadcasting end for multiple sections；With
Program listing edit cell cuts the corresponding program listing of source material editing broadcasting end and locally broadcasting for basis, and is identical
Identical ID is arranged in the program listing of period；
Wherein, for the audio frequency watermark generation module when generating audio frequency watermark, the audio frequency watermark further includes the program
Single ID.
Preferably, the audio frequency watermark adding module includes:
Edit cell, for merging the audio frequency watermark file and host view in the production of host's video-audio program
Audio program files broadcast position so that the up/down that corresponding audio frequency watermark is added to the video-audio program be cut；
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 the host's video-audio program and audio frequency watermark file progress multi-media processing to broadcast, thus
Audio frequency watermark is added in the audio of host's video-audio program.
Preferably, the monitoring parsing module includes:
Watermark extracting unit, for monitoring host's video and audio section during host's video-audio program output
Mesh signal, and therefrom extract audio frequency watermark；With
Resolution unit obtains corresponding section and broadcasts type identification and program listing ID for parsing the audio frequency watermark.
The present invention in host's video-audio program by increasing audio frequency watermark prompt information, in section for needing multi version to broadcast
End is broadcast, according to the audio watermark information of identification, the video-audio program broadcasted originally is replaced with into local video-audio program and is broadcasted, or
The broadcast for restoring host's video-audio program realizes automatic cut and broadcasts, also, control process is simple, effective, while releasing operation
The stress of personnel.
Detailed description of the invention
By referring to the drawings to the description of the embodiment of the present invention, above-mentioned and other purposes of the 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 the corresponding character string meaning schematic diagram of audio watermark information of the present invention；
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 the principle and its structural schematic diagram of one embodiment of the invention sound intermediate frequency watermark adding module；
Fig. 6 is the principle and its structural schematic diagram of another embodiment of the present invention sound intermediate frequency watermark adding module；
Fig. 7 is the structure principle chart of monitoring parsing module of the present invention.
Fig. 8 is to cut the structure principle chart for broadcasting end in multi version broadcast system embodiment two of the present invention.
Specific embodiment
As shown in Figure 1, for the overview flow chart of the multi version broadcasting method in one embodiment of the invention.In the present embodiment
In, the multi version broadcasting method mainly includes two most of, and first part is the treatment process in center-side, and second part is
Cutting the treatment process for broadcasting end.Wherein, host's video-audio program signal is transferred to section mode for broadcasting end from center-side can
According to center-side, cut broadcast end and host's video-audio program signal (file) format it is different, do not do emphasis in the present invention
Explanation.
Specifically, in center-side, comprising the following steps:
Step S11, center-side broadcast end to broadcast multiple sections of host's video-audio program and provide corresponding local material.Such as
Different ad materials etc. is provided for different zones, and these materials are distributed to each section and broadcast end.
Step S12 finds in host's video-audio program signal and up/down is needed to cut the position broadcast, such as sometime.
Step S13 cuts the position broadcast over/under respectively and adds corresponding up/down audio frequency watermark.Wherein, the up/down sound
Frequency watermark includes cutting to broadcast type identification, broadcasts type identification for described section and broadcasts or lower section is broadcast for identifying to cut, and is determined for section broadcasting to hold
The fixed moment is host's video-audio program to be replaced with to specified local material, or the local material broadcasted is replaced back
Original host's video-audio program.
Step S14, center-side broadcasts the host's video-audio program for having added audio frequency watermark, and is transferred to the multiple
It cuts and broadcasts end.
End is broadcast cutting:
Step S21 receives and stores the local material sent from center-side.
Step S22 is received and is exported the host's video-audio program signal sent from center-side.
During output, whether step S23, monitoring has audio frequency watermark in host's video-audio program signal, such as
Fruit has monitored audio frequency watermark, and the audio frequency watermark is extracted and parsed, and obtains cutting in the audio frequency watermark and broadcasts type
Mark.
Step S24, it is upper section when broadcasting mark that cutting in the audio frequency watermark, which broadcasts type identification, i.e., currently extracts and be
Host's video-audio program signal of output is switched to the corresponding local material section provided by center-side by upper audio frequency watermark
Mesh signal.
Step S25, it is lower section when broadcasting mark that cutting in the audio frequency watermark, which broadcasts type identification, by the local material of output
Programme signal is switched to host's video-audio program signal.
Wherein, the audio frequency watermark in the present invention can use the audio frequency watermark of various ways, as a preferable embodiment,
The digital watermarking of present invention selection strong antijamming capability.Since the audio frequency watermark is by the way that in human ear, (in general, human ear can be known
Other sound frequency is 20 --- and 20000 hertz) unrecognizable frequency increases the marking, to the original sound quality of audio file without too big
It influences, thus its imperceptible influence of human ear, so audio frequency watermark does not influence spectators to the auditory perception of program.
The present invention is utilized by increasing audio frequency watermark prompt information in host's video-audio program, and multi version is being needed to broadcast
Cut broadcast end, according to the audio watermark information of identification, the host's video-audio program signal exported originally is replaced with into local material
Programme signal, or restore host's video-audio program signal.It realizes automatic cut to broadcast, and control process is simple, efficient.
In step s 11, when up/down only a pair of of in host's video-audio program cuts the position broadcast, i.e., only one cuts and broadcasts
Period, and the material locally broadcasted also only one when, audio frequency watermark only need to include cut broadcast type identification.But when
When situation complexity, if any multiple sections of sowing time sections, each period locally has multiple materials to broadcast, and broadcasts end at this point, cutting for convenience
The local material for needing to broadcast is found, center-side broadcasts end, in the local that needs of a certain period broadcast also according to described cut is distributed to
Material makes corresponding program listing, and is equipped with unique identity, i.e. a program listing has unique ID, and same section
Sowing time, the program listing ID that uses of section was identical, but the particular content needs that can broadcast end according to each section and it is different.Work as conduct
The video-audio program of host is added to multipair audio frequency watermark, i.e., when cutting the position broadcast with multipair up/down, difference cuts sowing time section
Program listing ID is different.Thus, in step s 12, multipair audio frequency watermark can be added, in each pair of audio frequency watermark, including cut and broadcast
Type identification and program listing ID.
In the specific implementation, corresponding one character string with multidigit character of audio frequency watermark, as one embodiment, such as Fig. 2
It is shown, a field is set in the character string, type identification is broadcast to cut, for example, indicating the audio water with a bit 1
Printing corresponding is that upper cut broadcasts position, and use 0, which indicates that the audio frequency watermark is corresponding, to be lower section and broadcast, when cut broadcast hold detect it is obtained after parsing
When the field is 1, output signal is switched to local material programme signal, and when detecting the field obtained after parsing is 0,
Output signal is switched to former host's video-audio program signal again.It broadcasts after type id field cutting as program listing ID, such as one
16 character strings.
Accordingly, end is broadcast cutting, in step S23, when parsing the audio frequency watermark, obtaining section broadcasting type identification
Meanwhile it can also obtain the program listing ID.
In step s 24, it corresponding is provided by center-side host's video-audio program signal of output to be switched to
Local material programme signal when, according to the program listing ID, find the program listing and local playing material of storage inside, according to
The program listing broadcasts local material, to obtain local material programme signal.
Since system is when parsing audio frequency watermark and triggering corresponding device action, the regular hour is needed, thus, center
End cut over/under broadcast position addition audio frequency watermark when, the up/down in advance cut broadcast position first time period position add sound
Frequency watermark.Fig. 3 A is signal moment schematic diagram when adding audio frequency watermark in one embodiment of the invention.The horizontal axis indicates signal
At the time of, for convenience of the prominent moment, programme signal is omitted in the figure.Wherein, moment T1 is that theoretic upper cut broadcasts position, i.e.,
Audio frequency watermark should be theoretically added at moment T1.Broadcast processing time at end in view of cutting, such as extract audio frequency watermark, parsing and
Equipment operation proposes previous time period t 1, and audio frequency watermark is added at moment T2.
It cuts and broadcasts end in parsing, as shown in Figure 3B, to extract audio frequency watermark, switching output letter in one embodiment of the invention
Number when signal moment schematic diagram.Audio frequency watermark has been monitored in moment T2, by the extraction of audio frequency watermark, parsing, and has been controlled
Corresponding local material broadcasts, and by a time period t 2', i.e., obtains local material programme signal, time period t 2' in moment T3
It, may be different because of various factors with uncertainty.In order to make signal successful switch in theoretical moment T1.
The present invention has also reserved second time period t2, i.e., after the processing such as extraction, parsing, broadcasting, obtains local material in moment T3
When programme signal, do not switch at once at this time, but is waiting a time period t 2, then switch over.So that t2+t2'=t1,
In the specific implementation, t1 is generally set to several seconds, such as 5 seconds, is tested repeatedly cutting to broadcast to hold, thus learn t2', such as 3 seconds, and
Afterwards according to preset t1, determine that the specific time of the time period t 2 waited is 2 seconds.So that practical switching moment T4 and theory
Moment, T1 was identical.By the cooperation of t1 and t2, guarantee that section frame broadcast a little is accurate.Lower section similar the case where broadcasting, and is not repeated
Explanation.
Preferably, audio frequency watermark is supervised for anti-leak-stopping, as a preferable embodiment, the up/down in the present embodiment, which is cut, broadcasts position
It is set to a very short period, it is standby as safety that multiple identical audio frequency watermarks are added to consecutive intervals in the period
Part.The period can be manually set.
In step s 13, it adds the mode of audio frequency watermark for example: in the production of host's video-audio program, will pre-generate
Audio frequency watermark the position broadcast is cut by the up/down that editor module is added separately to host's video-audio program file；Alternatively,
By broadcast module control broadcast host's video-audio program when, be multicast to up/down cut broadcast position when, control pre- Mr. respectively
At audio frequency watermark file broadcast；By the media handling of rear end, cuts and broadcast in the up/down of the audio of host's video-audio program
Corresponding audio frequency watermark is added in position.
The present invention also provides a kind of multi version broadcast systems of video-audio program, as shown in figure 4, being the reality of the system
Example one is applied, the broadcast for IP stream.Specifically, the system comprises center-side 1 and cut broadcast end 2, wherein the center-side packet
It includes:
Audio frequency watermark generation module 11 broadcasts the audio frequency watermark file of position for generating corresponding up/down section, wherein described
Audio frequency watermark includes cutting to broadcast type identification, broadcasts type identification for described section and section broadcasts or lower section is broadcast for identifying；
Audio frequency watermark adding module 12, for the audio frequency watermark to be added in host's video-audio program signal；With
Material provides module 13, provides corresponding local material for broadcasting end for multiple sections of broadcast video-audio program, and
Material is sent to cut and broadcasts end 2；
Broadcasting end 2 for described section includes:
Monitor parsing module 21；During exporting host's video-audio program signal, monitors the host and regard sound
Frequency programme signal therefrom extracts audio frequency watermark, and parse corresponding up/down cut broadcast cut broadcast type identification；With
Local Broadcast Control switching module 22, it is upper section when broadcasting mark that cutting in audio frequency watermark, which broadcasts type identification, by broadcast
Host's video-audio program signal is switched to local material programme signal；Type mark is broadcast in solution cutting in the audio frequency watermark
When knowledge broadcasts mark for lower section, the local material programme signal of broadcast is switched to host's video-audio program signal.
Optionally, cutting and broadcasting end 2 further includes local material memory module 23, for storing from the local that center-side 1 is sent
Material.
The audio frequency watermark generation module 11 is generated by audio watermarking algorithm (to be had or not specific audio watermark
With the character string of meaning field) audio frequency watermark file, audio frequency watermark therein include respectively correspond up/down cut broadcast position
Up/down audio frequency watermark.In one embodiment, the corresponding character string of the audio frequency watermark is as shown in Fig. 2, include cutting to broadcast type mark
Section of becoming literate and program listing id field.
Audio frequency watermark adding module 12 is for the audio frequency watermark to be added in host's video-audio program signal.Its
In, the mode of addition is as shown in Figure 5 and Figure 6, and Fig. 5 and Fig. 6 respectively correspond two kinds of audio frequency watermark addition manners.
As shown in figure 5, audio frequency watermark adding module 12 includes an edit cell 121, the edit cell 121 such as one
Common software for editing in a little TV stations.Corresponding audio frequency watermark file is added to program material by the edit cell 121
In file (being obtained by the program making module E1), the corresponding audio frequency watermark of position increase is broadcast to cut in corresponding up/down.
As shown in fig. 6, audio frequency watermark adding module 12 also may include play-out unit 122 and synthesis unit 123, it is described to broadcast
Unit 122 is for broadcasting the host's video-audio program made out, and cuts over/under and broadcast position and broadcast audio respectively
Watermark file.Media handling is carried out by 123 pairs of broadcast video-audio program files of combining unit and audio frequency watermark file in rear end,
To which audio frequency watermark be added in the audio of the video-audio program.
Wherein, either pass through the combining unit 123 in the edit cell 121 (software for editing) or Fig. 6 in Fig. 5,
During program making process or broadcast, by encoding and decoding technique, audio frequency watermark file and program file are merged, thus
Up/down, which is cut, broadcasts the corresponding audio frequency watermark of position increase.
It includes that material provides unit 131 and program listing edit cell 132 that the material, which provides module 13,.Wherein, material mentions
For unit 131, its material locally broadcasted is provided for broadcasting end for multiple sections.Wherein, according to cut broadcast end need difference, be it
The material of offer may be identical, it is also possible to different.And end can be broadcast for same section, different sections of sowing time sections provide different cutting and broadcast element
Material.Program listing edit cell 132 is used to broadcast the corresponding program listing of source material editing that locally broadcasts of end according to cutting, and when being identical
Identical ID is arranged in section, the different sections of program listings for broadcasting end.
Program in the present invention broadcasts transmission module E2 and is streamed to the IP for being added to the video-audio program of audio frequency watermark
Corresponding cut broadcasts end.
It cuts after broadcasting the IP stream that end 2 receives the video-audio program, is broadcasted by local Broadcast Control switching module 22, while monitoring solution
Analysis module 21 monitors host's video-audio program signal.Specifically, the monitoring parsing module 21 is as shown in fig. 7, comprises water
Print extraction unit 211 and resolution unit 212, wherein the watermark extracting unit 211 monitors the host's video-audio program received
Signal, and audio frequency watermark is completely extracted from the audio of former host file according to watermark extraction algorithm；The resolution unit
212, for parsing the 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 cuts and broadcasts type, and according to program listing id field, determines the present period local material section to be broadcasted
Mesh list cuts according to the up/down of the audio frequency watermark and broadcasts type, and corresponding information is sent to the local Broadcast Control switching module
22。
Local Broadcast Control module 22 receives the information that monitoring parsing module 21 is sent, if the control signal includes upper section
Information is broadcast, the broadcast to former host's video-audio program signal is stopped, according to the program listing ID in information, according to program listing, from this
Corresponding material is found in ground material memory module 23, and then broadcasts the local material, i.e., believes former host's video-audio program
Number it is switched 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 sends that information to described
Local Broadcast Control module 22.The local Broadcast Control module 22 broadcasts mark according to lower section, stops broadcasting the local material, and then continue
Export host's video-audio program signal.
For the application example one of 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.
Such as the video and audio screen in the large screen or elevator of cell or office building, most of is that advertising company transports
Battalion broadcasts some small programs and advertisement.Advertisement therein is largely the same, but have it is some have in different zones it is different
It broadcasts and requires.For example, may have 50% program is unified advertisement, but right in the screen that the same advertiser in somewhere manages
In the different region in this area, there may be other 50% demand for thering is the multi version of local advertising to broadcast.For example, being broadcast in cell A
Advertising programme relevant to cell A out broadcasts advertising programme relevant to cell B in cell B.Wherein, the advertisement of this area
It is held centered on the computer room of the sending advertising programme where company or broadcast room, the broadcast child node of each cell or office building
End is broadcast to cut, center-side adds audio frequency watermark in being sent to each section of advertising programme for broadcasting end, and by each cell or writes
Building needs to cut the advertisement broadcast and program listing is distributed to the broadcast child node of each cell or office building.In each cell or office building
When the advertising programme that playout center end is sent, monitors whether audio frequency watermark, if monitoring audio frequency watermark, has extracted and parse,
According to the program listing in audio frequency watermark, current advertising programme is replaced with into this district advertisement program.After broadcasting a period of time,
If monitoring audio frequency watermark from former advertising programme, mark is broadcast according to lower section therein, by this currently playing district advertisement
Program replaces with former advertising programme.Home cell advertising programme is the advertisement for adapting to this cell, not with other cells or office building
Together.
For the application example two of system embodiment shown in Fig. 4: being directed to different nets in the broadcast of network video-audio program
The multi version of network node broadcasts
The present disclosure additionally applies for network broadcasts, wherein cutting and broadcasting end is different network node or CDN node.It is broadcasted
Process is similar with application example one, and this will not be repeated here.
Wherein, it in above-mentioned application example, cuts and broadcasts end and can realize that monitoring, stream are broadcast by specifically broadcasting control program
Out and stream switching.
As shown in figure 8, to cut the knot for broadcasting end in the multi version broadcast system embodiment two of video-audio program of the present invention
Structure schematic illustration.In this example, the center-side is higher level TV station or is former TV station, specific structure and Fig. 4 institute
The embodiment shown is similar, thus, this will not be repeated here.Cutting in the present embodiment broadcasts end and is TV station, junior or is relay
TV station.
Former TV station needs to cut the local advertising broadcast for each rebroadcast television and its program listing is sent to each relay electricity
Television stations, each rebroadcast television receive and store local advertising program and corresponding program listing.Former TV station is in host's video and audio
It needs to add upper audio frequency watermark by the position that local advertising is replaced in programme signal, in the position for needing to terminate local advertising broadcast
Place's addition subaudio frequency watermark to be set, broadcasts host's video-audio program, and be transferred to each rebroadcast television, transmission mode is unlimited,
Such as satellite transmission, optical fiber transmission.
Wherein, upper audio frequency watermark include upper section broadcast mark and program listing ID, subaudio frequency watermark includes lower section and broadcasts mark and (can wrap
It includes or does not include program listing ID).
The host signal of rebroadcast television receive output module E3 and local program playing device E4 respectively with cut bank E5
Connection, the cut bank are controlled by Local Control Module 22a, which signal decision exports.Under normal circumstances, the cut bank
It connects host signal and receives output module E3, host's video/audio signal is exported.It monitors parsing module 21a and monitors host's letter
Number reception output module E3 received signal, has monitored whether audio frequency watermark, if monitoring audio frequency watermark, has extracted and parse,
Information is sent to Local Control Module 22a, the Local Control Module 22a broadcasts mark and program listing according to upper cut in audio frequency watermark
ID, control local program broadcast module E4 according to the local material in the local material memory module of program listing broadcast, obtain local
Material programme signal, the Local Control Module 22a simultaneously control cut bank E5, and output signal is believed by current host's video and audio
Number local material programme signal is replaced with, 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 down section broadcasting mark
Know, send that information to the Local Control Module 22a, the Local Control Module 22a controls cut bank E5, and output is believed
Number host's video/audio signal is switched to by local advertising or local news.
The present invention is for very useful in the underdeveloped junior area of some smaller or economic condition.It broadcasts in these areas
The demand of one's respective area news, but have no ability to one channel of independent construction.After using method of the present invention, by higher level
One individual channel of regional construction, i.e., the center-side in the corresponding present invention, junior region usually broadcast the section in higher level region
Mesh broadcasts identical program.In the period for broadcasting news, local domain news is respectively broadcasted in each junior area.Such as a city
A district channel is built, usually the radio relay broadcasting station in each district relays this channel, the section for this channel that each district is watched
Mesh is the same.In specific information slot, the radio relay broadcasting station in each district broadcasts the news in oneself district, and replaces host
Program output, the program that each district is seen is different.
By the above method and system provided by the invention, automatic cut realized in television relay is broadcast, it is no longer necessary to work
Make personnel to switch by hand, releases the stress of staff.
It is as described above according to the embodiment of the present invention, these embodiments details all there is no detailed descriptionthe, also not
Limiting the invention is only the specific embodiment.Obviously, as described above, can make many modifications and variations.This explanation
These embodiments are chosen and specifically described to book, is principle and practical application in order to better explain the present invention, thus belonging to making
Technical field technical staff can be used using modification of the invention and on the basis of the present invention well.Protection model of the invention
The range that the claims in the present invention are defined should be subject to by enclosing.
Claims (9)
1. a kind of multi version broadcasting method of video-audio program, wherein the following steps are included:
Center-side broadcasts end for multiple sections and provides corresponding local material；
Center-side needs up/down to cut the corresponding up/down audio frequency watermark of position addition broadcast, institute in host's video-audio program signal
Stating up/down audio frequency watermark includes cutting to broadcast type identification, broadcasts type identification for described section and section broadcasts or lower section is broadcast for identifying；
Center-side broadcasts host's video-audio program, and is transferred to multiple sections and broadcasts end；
It broadcasts end for the multiple section and receives host's video-audio program signal, when exporting host's video-audio program signal,
It monitors and parses the audio frequency watermark；
It is upper section when broadcasting mark that cutting in the audio frequency watermark, which broadcasts type identification, and host's video-audio program of output is believed
The local material programme signal provided by center-side number is provided；Cutting in the audio frequency watermark is broadcast type identification and is broadcast for lower section
When mark, the local material programme signal of output is switched to host's video-audio program signal,
Wherein, when up/down being needed to cut the position corresponding up/down audio frequency watermark of addition broadcast in host's video-audio program signal,
The position addition audio frequency watermark for broadcasting position first time period is cut in the up/down in advance；It obtains cutting the audio water broadcast in parsing
When printing and obtaining local material programme signal, host's video-audio program signal of output is switched to by second time period
The local material programme signal provided by center-side.
2. the multi version broadcasting method of video-audio program as described in claim 1, wherein center-side is broadcast end for each section and provided
Local material be one or more, and according to the local source material editing at program listing, wherein further include in upper audio frequency watermark
The program listing ID；
It cuts and broadcasts end when parsing the audio frequency watermark, obtain the program listing ID；
When host's video-audio program signal of output is switched to the local material programme signal provided by center-side, press
Local material is broadcasted according to the program listing.
3. the multi version broadcasting method of video-audio program as claimed in claim 2, wherein the up/down cuts the position broadcast and is
Multipair, each pair of up/down cuts corresponding one of the position broadcast and cuts the broadcast slot for broadcasting end, and each broadcast slot corresponds to a program listing,
The multiple sections of corresponding program listing ID of identical broadcast slot for broadcasting end are identical.
4. the multi version broadcasting method of video-audio program as described in claim 1, wherein in host's video-audio program signal
It needs up/down to cut the step of corresponding up/down audio frequency watermark is added in the position broadcast to include:
In the production of host's video-audio program, pre-generated audio frequency watermark is added separately to the host by editor module
The up/down of video-audio program file cuts the position broadcast；
Or,
When broadcasting host's video-audio program by broadcasting module, cuts over/under and broadcast position and control pre-generated sound respectively
Frequency watermark file is broadcasted；
By the media handling of rear end, is cut in the up/down of the audio of host's video-audio program and broadcast the corresponding sound of position addition
Frequency watermark.
5. the multi version broadcasting method of the video-audio program as described in claim 1-4 is any, wherein the up/down cuts and broadcasts position
It is set to the position with predetermined amount of time, it is multiple for adding the audio frequency watermark in the predetermined amount of time.
6. the multi version broadcasting method of video-audio program as described in claim 1, wherein the audio frequency watermark corresponds to have
The character string of multidigit character.
7. a kind of multi version broadcast system of video-audio program, including center-side and cut and broadcast end, wherein the center-side includes:
Audio frequency watermark generation module broadcasts the audio frequency watermark file of position for generating corresponding up/down section, wherein the audio water
Print includes cutting to broadcast type identification, broadcasts type identification for described section and section broadcasts or lower section is broadcast for identifying；
Audio frequency watermark adding module, for the audio frequency watermark to be added in host's video-audio program signal, also, in place
When up/down being needed to cut the position corresponding up/down audio frequency watermark of addition broadcast in main view audio program signal, on described in advance/
Add audio frequency watermark in the lower section of position for broadcasting position first time period；
Material provides module, provides corresponding local element for broadcasting end for multiple sections of broadcast host's video-audio program signal
Material；
Broadcasting end for described section includes:
Monitor parsing module；During exporting host's video-audio program signal, host's video-audio program is monitored
Signal therefrom extracts audio frequency watermark and parses corresponding section and broadcasts type identification；With
Local Control Module, it is upper section when broadcasting mark that cutting in audio frequency watermark, which broadcasts type identification, obtains section broadcasting in parsing
Audio frequency watermark and when obtaining local material programme signal, by second time period by host's video-audio program signal of output
The local material programme signal provided by center-side is provided；Cutting in the audio frequency watermark broadcasts type identification and broadcasts mark for lower section
When knowledge, the local material programme signal of output is switched to host's video-audio program signal.
8. the multi version broadcast system of video-audio program as claimed in claim 7, wherein the material provides module and includes:
Material provides unit, provides its material locally broadcasted for broadcasting end for multiple sections；With
Program listing edit cell cuts the corresponding program listing of source material editing broadcasting end and locally broadcasting for basis, and is the identical period
Program listing identical ID is set；
Wherein, for the audio frequency watermark generation module when generating audio frequency watermark, the audio frequency watermark further includes the program listing ID；
The monitoring parsing module includes:
Watermark extracting unit, for during host's video-audio program output, monitoring host's video-audio program letter
Number, and therefrom extract audio frequency watermark；With
Resolution unit obtains corresponding section and broadcasts type identification and program listing ID for parsing the audio frequency watermark.
9. the multi version broadcast system of video-audio program as claimed in claim 7, wherein the audio frequency watermark adding module packet
It includes:
Edit cell, for merging the audio frequency watermark file and host's video and audio in the production of host's video-audio program
Program file broadcasts position so that the up/down that corresponding audio frequency watermark is added to the video-audio program be cut；
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
It broadcasts；With
Synthesis unit, for the host's video-audio program and audio frequency watermark file progress multi-media processing to broadcast, thus in institute
It states in the audio of host's video-audio program and audio frequency watermark is added.
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| CN101272449B (en) * | 2008-03-28 | 2010-12-15 | 山东泰信电子有限公司 | Television advertisement cut-broadcasting method based on digital TV set-top box |
| CN101626276A (en) * | 2008-07-10 | 2010-01-13 | 华为技术有限公司 | Method, device and system for replacing advertisement |
| WO2011075098A1 (en) * | 2009-12-16 | 2011-06-23 | Thomson Licensing | System and method for protecting advertising cue messages |
| US8726304B2 (en) * | 2012-09-13 | 2014-05-13 | Verance Corporation | Time varying evaluation of multimedia content |
| CN104902287A (en) * | 2015-05-14 | 2015-09-09 | 无锡天脉聚源传媒科技有限公司 | Video switching playing method and device |
| CN105392022B (en) * | 2015-11-04 | 2019-01-18 | 北京符景数据服务有限公司 | Information interacting method and device based on audio frequency watermark |
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