CN101388969A - On-line playbill driven multiple channel subtitle editing and playing method - Google Patents
On-line playbill driven multiple channel subtitle editing and playing method Download PDFInfo
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Abstract
The invention discloses an online program list driven multiple channels caption editing and playing method belonging to the field of multiple channels caption editing and displaying in television program producing and playing mechanism in broadcast television field. At present, the caption editing and playing manner in most caption playing system has the disadvantages of heavy working load in caption producing and easy to cause broadcast accident. The method in the invention comprises: firstly, the caption playing system acquires an online program list of all the channels in the video playing system; then generates the caption playing lists of all the channels according to the acquired online program list, the caption mapping list, the caption template base and caption material base; finally, transmits the generated caption playing lists to the caption playing machine of the corresponding channel according to the channel identifications; while the online program list of a channel varies, updates the caption playing list of the channel. The method in the invention can couple the video playing and the caption playing tightly, consequently, reduces the working load of artificial caption producing, and avoids the broadcast accidents caused by artificial operation error.
Description
Technical field
The invention belongs to the multiple channel subtitle editing and playing field of broadcasting and TV field TV programme record and broadcast mechanism, be specifically related to the multiple channel subtitle editing and playing method that a kind of online programme drives.
Background technology
In broadcasting and TV field TV programme record and broadcast mechanism, main control broadcasting line is the final outlet of TV programme.Generally, there are several channels in a TV station, and each channel has independently playing device, mainly comprises video broadcast system and captions broadcast system.In the past, TV station required very low to the captions broadcast system on the main control broadcasting line, and the amount of broadcasting demand is also smaller, just broadcasts some station symbol information, clock information etc.But in recent years following factor actuate with catalysis under, present the impetus of quick growth for the demand of this respect.
The first, the main profit model of TV programme record and broadcast mechanism still relies on television advertising at present.So, except adding on the program making link the advertisement of visual form, broadcast the advertisement that can also add the captions form on the link by the broadcasting line film titler at program, this also is a kind of value-added way that becomes more and more popular now.
The second, it is the general trend that present TV station net is built that the record and broadcast of TV subtitling separates.In TV station's net of radio and television mechanism is built at present, all pay special attention to the process of TV media industrialization, and use the attribute of the commercialization and the marketization of the outstanding TV programme of corresponding techniques means.Exchange after the television program transmission and utilization again will have potential benefit in market circulation link and production link.Yet TV subtitling is the important component part of TV programme, and traditional captions are made and finished in the program making zone, and program making department directly makes captions and is superimposed upon on the image frame, is recorded on the program bearing medium (tape or hard disk).So, image can't be gone with captions again and be separated, and program is worth when exchanging and utilize again falls sharply.
The 3rd, along with the development of tv undertakings, the effect of captions in TV is increasing, daily broadcasts increased frequency, and it is various informative that captions broadcast, and captions are made also exquisite more.Pass through TV subtitling, can make full use of limited video screen space, transmit more information, as the topical news that rolls, accident, tourism information, public service information, weather information, rating be dynamically and television content etc. in real time, thereby more directly embody TV media is the important social property of public service, obtains better social benefit.
Can draw such conclusion by above analysis: along with the captions broadcast business of each channel of vast television structure is on the increase, TV subtitling become TV broadcast in except that video and audio frequency the 3rd broadcast content independently.
On the other hand, the captions that broadcast on main control broadcasting line have following characteristic: the first, regularly broadcast; The second, the amount of roll titles is increasing, comprising spectators' note, rating advance notice, topical news, sports news, public service information, weather information, copy etc.; The 3rd, the form that captions broadcast is variation day by day also, and or not simply only to be written form, but cooperate the form of various figures, animation to show with literal, and with various special effects; The 4th, the TV programme that most captions need cooperate the video broadcast system of each channel to play is carried out accurate regularly broadcast, for example advertisement countdown, next part TV play story introduction, TV play title, advertisement footmark etc.
At present, the way of most of caption systems is that electronic program list is printed, and on the broadcast film titler of each channel, carries out the establishment of captions playitem and the layout of subtitle list than facing toward, and this method has following drawback:
(1) workload of captions making is very big.
(2) cause easily because the broadcast accident that the people brings for misoperation.The stability of the correctness of content of TV program, accuracy and playing device is that TV station broadcasts the problem that department pays close attention to the most.In case break down, will directly cause the broadcast accident, bring bad social effect.
(3) TV guide can be regular carries out that programme content adjustment, order are adjusted etc., and also need manually to carry out readjusting of caption broadcasting list, this process this moment is very loaded down with trivial details, and is easy to mistake occur on the broadcast time of subtitle item.
The root of above-mentioned all problems is in TV station's main control broadcasting line, and the captions broadcast system can't obtain the TV guide of video broadcast system.In the video broadcast system, must have a programme, it has determined which time to broadcast which program in channel every day.Under normal conditions, the general editting office of TV station can shift to an earlier date 7 days, and (at different TV stations, the time that shifts to an earlier date is slightly variant) submits the programme of each channel to, and running into special circumstances certainly can adjust timely.Then, the broadcast portion of TV station can prepare uploading of material and playing control system is submitted in programme according to these programmes.Programme also is very useful for the captions broadcast system, if the captions broadcast system can access this programme, and so will be of great advantage for the making and the broadcast of captions.
Summary of the invention
At problems of the prior art, the purpose of this invention is to provide the multiple channel subtitle editing and playing method that a kind of online programme drives, this method can make video broadcast and the captions broadcast closely is coupled together, thereby reduce the workload of manual manufacture captions, avoid because the broadcast accident that the human operational error causes.
To achieve these goals, the technical solution used in the present invention is that the multiple channel subtitle editing and playing method that a kind of online programme drives comprises the steps:
(1) the captions broadcast system obtains the online programme of all channels in the video broadcast system;
(2) the captions broadcast system generates the caption broadcasting list of all channels according to the online programme of all channels that obtain in the step (1) and the coupling that captions mapping table, subtitle template storehouse and captions material database carry out caption object;
(3) caption broadcasting list that generates in the step (2) is sent to the broadcast film titler of corresponding channel according to channel identication;
(4) if the online programme of channel changes, then upgrade the caption broadcasting list of this channel.
The multiple channel subtitle editing and playing method that aforesaid a kind of online programme drives, the mode that the middle captions broadcast system of step (1) obtains online programme comprises " pushing away " pattern and " drawing " pattern; After described " pushing away " pattern is meant that the video broadcast system is packaged into the XML protocol format file that both sides define with online programme, the WEB service of initiatively calling the captions broadcast system, with XML protocol format file push to the captions broadcast system; Described " drawing " pattern is meant that the captions broadcast system sends the message that a request obtains online programme to the video broadcast system, after the video broadcast system receives this message, the online programme of captions broadcast system request is packaged into the XML protocol format file that both sides define, then this document is sent to the captions broadcast system.
The multiple channel subtitle editing and playing method that aforesaid a kind of online programme drives, wherein, the specific implementation process of described " pushing away " pattern may further comprise the steps:
1. the WEB service that the online programme of video broadcast system is obtained in definition in the captions broadcast system;
2. with step 1. in the definition the WEB service registry in the WEB server of captions broadcast system;
3. the WSDL with the 1. middle WEB service that defines of step is registered in the application gateway of video broadcast system;
4. the application gateway of video broadcast system calls the WEB service of obtaining the online programme of video broadcast system in the WEB server of captions broadcast system, and online programme is packaged into the XML protocol format that both sides define, and active push is given the captions broadcast system.
The multiple channel subtitle editing and playing method that aforesaid a kind of online programme drives, wherein, the specific implementation process of described " drawing " pattern may further comprise the steps:
1. dispose a messenger service in the application gateway of video broadcast system, described messenger service is subjected to the triggering from " obtaining online programme " message of captions broadcast system;
2. the captions broadcast system sends " obtaining online programme " message to the video broadcast system;
3. after the messenger service in the application gateway of video broadcast system receives this message, from database, take out the online programme of captions broadcast system request, be packaged into the XML protocol format file that both sides define, and this document is returned to the captions broadcast system.
The multiple channel subtitle editing and playing method that aforesaid a kind of online programme drives, the captions mapping table described in the step (2) are the incidence relation between program category, subtitle template ID, broadcast slot and the replacement material in the online programme.Program category can corresponding a plurality of subtitle template ID and a plurality of broadcast time section, a subtitle template ID can corresponding a plurality of program categories.
The multiple channel subtitle editing and playing method that aforesaid a kind of online programme drives, the type of the subtitle template in the subtitle template storehouse described in the step (2) comprise the template of Alternate text, replace the template of picture, the template of replacing animation and the template of not replacing.
The multiple channel subtitle editing and playing method that aforesaid a kind of online programme drives, the type of the captions material in the captions material database described in the step (2) comprises word content, rolling text content, content of image files, animation file content, TV station's station symbol content, standard digital clock and simulated clock simulation clock.
The multiple channel subtitle editing and playing method that aforesaid a kind of online programme drives, the process of the caption broadcasting list of all channels of generation described in the step (2) may further comprise the steps:
1. travel through the online programme of current channel, take out a undressed task period in the programme;
2. the 1. middle task period of taking out of traversal step, take out the undressed clauses and subclauses period of this task in the period;
3. 2. program category and the beginning and ending time of middle clauses and subclauses period of taking out are searched the mapping item that is complementary in the captions mapping table according to step, the condition of coupling is that program category is identical, and the time period of mapping item is in the beginning and ending time of clauses and subclauses period section, if do not find the mapping item that is complementary, then go to step 7.;
4. the template ID according to the mapping item finds corresponding template file;
5. replace template according to the material content and the template type of mapping item, generate caption object; This caption object is inherited the following attribute of task period, clauses and subclauses period and mapping item: the task identifier of caption object is inherited the identifier of task period, the entry identifier of caption object is inherited the identifier of clauses and subclauses period, the clauses and subclauses time period of caption object is inherited the beginning and ending time section of clauses and subclauses period, and the broadcast time of caption object is inherited the time period of mapping item;
6. the caption object that generates is joined in the current caption broadcasting list, and the template of unloading mapping item;
7. repeating step 2. to step 6., dispose up to all clauses and subclauses periods;
8. repeating step 1. to step 7., dispose up to all task periods;
9. repeat the next channel of above step process, up to handling all channels.
The multiple channel subtitle editing and playing method that aforesaid a kind of online programme drives, upgrade the change process of caption broadcasting list of channel of online programme and may further comprise the steps in the step (4):
1. the captions broadcast system obtains the change new online programme of channel of online programme in the video broadcast system;
2. travel through new online programme, take out undressed task period in this new online programme;
3. traversal step task period of taking out in 2., take out this task undressed clauses and subclauses period in the period;
4. according to the identifier of task period and clauses and subclauses period, in former subtitle list, search corresponding caption object,, then generate new caption object, new caption object is joined in the former caption broadcasting list if do not find corresponding caption object;
5. the caption object that finds is carried out following processing:
Suppose that the beginning and ending time that the clauses and subclauses period broadcasts is respectively b0 and b1, the original beginning and ending time of broadcasting of caption object is respectively t0 and t1, and the beginning and ending time of the clauses and subclauses time period that caption object is original is respectively x0 and x1, and the time period, [t0, t1] was within [x0, x1];
The broadcast time started t0 ' that caption object is new=b0+ (x0-t0), close of transmission time t1 '=b1+ (x1-t1), will [t0 ', t1 '] fix on approximately within [b0, b1];
The clauses and subclauses time period that caption object is new is [b0, b1];
6. repeating step 3. to step 5., dispose up to all clauses and subclauses periods;
7. repeating step 2. to step 6., dispose up to all task periods;
8. traversal is through above-mentioned amended caption broadcasting list, task identifier and entry identifier according to each caption object, in new online programme, search and whether have the corresponding clauses and subclauses period, if there is no, then this caption object is deleted from caption broadcasting list, obtain final caption broadcasting list.
The multiple channel subtitle editing and playing method that aforesaid a kind of online programme drives, described identifier is the GUID identifier.
Method of the present invention, by obtaining the online programme of all channels in the video broadcast system, the caption broadcasting list that generates all channels according to online programme and captions mapping table, subtitle template storehouse and the captions material database of channel, video broadcast and captions are broadcasted closely to be coupled together, thereby reduce the workload of manual manufacture captions, avoided because the broadcast accident that the human operational error causes.
Description of drawings
Fig. 1 is a method flow diagram of the present invention;
Fig. 2 is the pattern diagram of two kinds of mutual realizations of video broadcast system and captions broadcast system;
Fig. 3 is the realization flow figure of " pushing away " pattern;
Fig. 4 is the realization flow figure of " drawing " pattern;
Fig. 5 is a captions mapping table structural representation;
Fig. 6 is the flow chart that generates caption broadcasting list;
Fig. 7 is the flow chart that upgrades caption broadcasting list.
Embodiment
Describe the present invention below in conjunction with execution mode and accompanying drawing.
Core concept of the present invention is to adopt standard XML form and standard web application service technology, the video broadcast system on the realization TV station main control broadcasting line and the data interaction of captions broadcast system are delivered to the real-time online programme of video broadcast system in the captions broadcast system by the WEB service.Under the driving of online programme, the subtitle editing and playing system is according to the captions mapping table, subtitle template storehouse and the captions material database that configure in advance, be that each channel generates caption broadcasting list, and caption broadcasting list be sent on the broadcast film titler of each channel and broadcast.After the online programme of certain or certain several channels changes, upgrade caption broadcasting list according to new online programme.
Fig. 1 has shown the flow process of the multiple channel subtitle editing and playing method of online programme driving of the present invention, may further comprise the steps.
(1) the captions broadcast system obtains the online programme of all channels in the video broadcast system.
In actual application environment, the video broadcast system and the captions broadcast system of TV station's main control broadcasting line are isomeries, are mainly reflected in following aspect: 1. the video broadcast system is provided by different manufacturers with the captions broadcast system; 2. the video broadcast system is than the level of security height of captions broadcast system, and therefore owing to the problem of technology kernel and technology realization, the video broadcast system has been taked Unix or (SuSE) Linux OS mostly, and captions broadcast system majority has been taked Windows operating system; 3. because the difference of operating system realizes that the video broadcast system is different with the developing instrument of captions broadcast system.
Isomerism based on video broadcast system and captions broadcast system wants to realize the data interaction of two systems, must take cross-platform and the irrelevant technical scheme of concrete programming implementation language.The present invention has taked the system interaction agreement and the software communication interface protocol of standard.Aspect interaction protocol, the present invention has adopted the form of standard XML protocol as data; Aspect the software communication interface protocol, message queue interface technology and Web Services interfacing have been adopted.
XML (eXtensible Markup Language extend markup language) is a kind of simple storage language, uses a series of simple mark data of description, and these marks can be set up with mode easily.XML simply makes it be easy to read and write data in Any Application, and XML and concrete operating system platform and programming language are irrelevant, thereby becomes unique common language of exchanges data, can carry out the mutual of data between all heterogeneous systems.The present invention is with the interaction protocol of XML as video broadcast system and captions broadcast system, in different hardware platforms, different operating system and different data base management system, as long as follow the agreement of this standard, just can realize the exchanges data that heterogeneous system is cross-platform.
Aspect the software communication interface protocol, the present invention has adopted the mode that message queue interface technology and WebServices interfacing are combined.In the message queue interface technology, message is the information of the required transmission of communicating pair; Formation is the public storage space that sends and receive message, is the data structure of storing message, may reside in internal memory or the physical file.Web Services a kind ofly can receive the request that passes over, the independently mechanics of communication of lightweight from other system.This technology allows all systems on the network to carry out alternately.The definition of Web Services is made up of SOAP and WSDL two parts: SOAP has defined the basic communication agreement between the Web Services; WSDL is a Web Services descriptive language, and it has defined Web Services what is done, and how to do and Query Information.After using WSDL that a Web Services is defined, in order to make more user can find this Web service, simultaneously also be connected hold facility during with disaster recovery, this Web service registration need be published in the system and go for the interoperability of strengthening this Web service.In application program, quote the process of the special interface among the WebServices, be called " calling of service ".The SOAP user end to server sends solicited message, requires the service of calling, and required function is carried out in the request that server process sends, and then execution result is sent to client by response message.These information all are the XML forms, and can transmit between client and server with various protocols.
Fig. 2 has shown the pattern of two kinds of mutual realizations of video broadcast system and captions broadcast system, and a kind of is " pushing away " pattern, and a kind of is " drawing " pattern.The pattern that " pushes away " is meant in two systems that carry out exchanges data, and after system A became the file of the XML protocol format that both sides define with data encapsulation, the initiatively WEB of calling system B service was pushed to packaged data among the B of system.The pattern of " drawing " is meant in two systems that carry out exchanges data, when the A of system need be when the B of system obtains data, system A sends a message to the B of system, after system B receives this message, the data encapsulation that the A of system is needed becomes the file of the XML protocol format that both sides define, and sends to the B of system.Wherein, " pushing away " pattern is to realize with the communication interface of WEB service; The pattern of " drawing " is to realize with the communication interface of message queue technology.
Fig. 3 has shown the realization flow of " pushing away " pattern, and promptly the video broadcast system is pushed to the online programme of channel in the captions broadcast system and goes, and mainly may further comprise the steps.
1. in captions broadcast system definition WEB service, obtain the current up-to-date online playbill data of video broadcast system:
public?String?pushNewestPlayList(String?channel?ID)
Wherein, parameter c hannel ID represents the sign of channel, and the content of returning is the character string of an XML form, comprises the current up-to-date online programme of this channel.
2. with the pushNewestPlayList service registry in the WEB server of captions broadcast system.
3. the WSDL of pushNewestPlayList service is registered to the application gateway of video broadcast system.
4. the application gateway of video broadcast system calls the pushNewestPlayList service.
In the video broadcast system, when certain channel has generated a new online programme, when adjustment has taken place in perhaps online programme, application program on the application gateway just can be described the pushNewestPlayList service of calling the WEB server that is arranged in the captions broadcast system according to WSDL, the current up-to-date online programme of this channel is packaged into the file of an XML form, and active push is given the captions broadcast system.
Fig. 4 has shown the realization flow of " drawing " pattern, and promptly the captions broadcast system is moved the online programme of video broadcast system channel to self system, mainly may further comprise the steps.
1. messenger service is disposed: in messenger service of application gateway deploy of video broadcast system, this service is subjected to the triggering from " obtaining programme " message of captions broadcast system.
2. message trigger, Message Processing and data interaction: the captions broadcast system sends " obtaining programme " message to the video broadcast system, after the messenger service of video broadcast system receives this message, from database, take out the up-to-date online programme information of this channel, write in the XML file, and this document returned to the captions broadcast system, after the captions broadcast system obtains this file, read programme information wherein, write in the database.
When specific implementation, can adopt " pushing away " pattern, also can adopt " drawing " pattern, can also adopt this two kinds of patterns simultaneously.Under most of applied environments, " pushing away " pattern of use can satisfy the demands, but from the perfect in shape and function of system and the angle of operability, " drawing " pattern also is necessary.In the present embodiment, adopt " pushing away ", " drawing " two kinds of patterns, it is recessive wherein " pushing away " pattern, participation that need not be artificial; And " drawing " pattern is a dominance, needs the manual triggering of application program.
In the present embodiment, the data model of the online programme that obtains from the video broadcast system is to use the XML agreement, and programme is described to online television.
Online programme based on the XML form comprises two-layer configuration, is respectively " task period " and " clauses and subclauses period ".The online programme of an XML form can comprise a plurality of " task periods ", and each " task period " can comprise a plurality of " clauses and subclauses periods ".Different " the task periods " identified by unique ID and distinguishes, and different " clauses and subclauses periods " also are to be distinguished by unique ID.
The online programme of XML form comprises as lower node:
The PROGRAM node, the beginning of an online programme of expression comprises FILE node, INFO node and PGM node;
The FILE node, the information of expression file, this node comprises name (title of file), version (version of file) and create (creation-time of file);
The INFO node, be used for describing channel and date and time information, comprise channel (sign of channel), date (current date), name (time period, " morning ", " afternoon " or " night "), description (description of channel uses a GUID to represent) and index (call number of channel);
The PGM node, content node is as the container of task period and clauses and subclauses period;
ITEM: the task period, each ITEM describes a task;
MAIN node: the time started and the concluding time of describing task, comprise date (broadcasting the date), time (broadcast time), som (Start Of Media, material is gone into a little), dur (duration), name (time name section), the id (unique identification of task period, in whole online programme, do not repeat, this id produces during the period in newly-increased task, the deletion task was eliminated during the period, and updating task remained unchanged during the period);
The CLIP node, the clauses and subclauses period, comprise that date (broadcasting the date), time (broadcast time), som (go into a little, when form is: divide: second: frame), eom (goes out a little, when form is: divide: second: frame), (program category of numeral is as 0: advertisement for name (title of clauses and subclauses period), PrimaryID (unique identifier) and CLIPTYPE; 1: news; 2: TV play etc.).
Below be the signal of online programme of the XML form of video broadcast system:
<?xml?version＝＂1.0＂encoding＝＂GB2312＂?>
＜!--root node--〉
<PROGRAM>
＜FILE comprises title, version and date created 〉
＜!--the INFO node, channel, date and time information are described--
＜INFO comprises channel identication, current date, description, index 〉
＜!--content node, as the container of task period and clauses and subclauses period--
<PGM>
＜!--task time section, each ITEM describes a task--〉
<ITEM>
＜!--the MAIN node is described the start and end time of task, the date, and the time, go into a little,
Duration, the time name section, the unique identification of task period--〉
＜MAIN comprises broadcast date, the time, goes into point, duration, title, ID 〉
<CLIP>
＜!--clauses and subclauses period--〉
＜ITEM comprises date, time, goes into point, goes out point, title, ID, program category 〉
</CLIP>
</ITEM>
</PGM>
</PROGRAM>
(2) the captions broadcast system generates the caption broadcasting list of all channels according to the online programme of all channels that obtain in the step (1) and the coupling that captions mapping table, subtitle template storehouse and captions material database carry out caption object.
In the captions broadcast system, the very important role of subtitle template performer.This is because in the broadcast business of each channel of TV station, fixes relatively for the form that represents of captions, just before broadcasting caption content (for example content of text, picture file, animation file) is wherein replaced.For example, position, speed, the background colour of character rolling, stunt discrepancy mode of captions etc. are drawn in the font of use, font size, word look, the position of advertisement footmark, size, the end.Can be in the captions manufacturing system, the common template that all channels are used is made in advance, and specifies the Substitution Rules of caption object in the template.
In the present embodiment, subtitle template has following several types, and the process and the Substitution Rules of making are as follows.
1. the template of Alternate text: make one and broadcast scene, revise the name of figure tuple and pel then, the name of the literal pel that requirement will be replaced also is " replace " for the name of the figure tuple at " replace " and its place.
2. replace the template of picture: make one and broadcast scene, revise the name of figure tuple and pel then, the name of the picture pel that requirement will be replaced also is " replace " for the name of the figure tuple at " replace " and its place.
3. replace the template of animation.Make one and broadcast scene, and incite somebody to action animation primitive called after " replace " wherein.
The template of 4. not replacing.Make one and broadcast scene, wherein the name of all pels is not set to " replace ".
In the process that subtitle template is created, can generate a meta file that uses the XML formal definition, the type of template, the rule of replacement etc. have wherein been described.After having created all subtitle template, the Template Manager system can distribute a unique ID identifier for each template, these information are recorded in the caption system core database, then with the subtitle template file migration in application server.
Material in the captions broadcast system is meant the content of the actual broadcast that template is replaced.In the present embodiment, the captions material comprises following several types:
1. word content is as TV play title, name of tv column, advertisement trade name, advertising matter title etc.;
2. rolling text content is as spectators' note, lastest news, instant weather information, public service information, advertisement text, story introduction, program guide etc.;
3. content of image files is as the static Logo of column, the static Logo of advertisement etc.;
4. animation file content is as advertisement countdown, column animation Logo, advertisement animation Logo etc.;
5. TV station's station symbol content;
6. standard digital clock and simulated clock simulation clock.
In the multiple channel subtitle broadcast system, different channels all has the material of oneself, the material that also exists all channels to share.Material is created according to different material types by the material management system, as for the relevant material of advertisement, provides name of product, rolling literal, picture file and animation file by advertisement manufacturer usually; For the material of certain column, provide by concrete program department usually; For the rolling text of other types, usually all by the typing of the department of broadcast.The material management system uses the mode unified management material of database, and this way to manage has following advantage:
1. during the replacement before broadcasting, easily from material database, transfer these materials;
2. different channels can be shared some public materials, has avoided unnecessary material to repeat to create;
3. the information inquiry after conveniently broadcasting, for example exact date, time and the broadcast number of times etc. of certain advertisement broadcast;
4. the content auditing before being convenient to broadcast;
5. be convenient to the investigation of the accident of broadcasting.
The captions mapping table is meant a kind of realization mechanism that online programme and subtitle template, captions material are mated, and different channels has different mapping tables according to Promgramming.The captions mapping table has been set up the corresponding relation of program category ClipType, subtitle template ID, broadcast slot and the replacement material of online programme.
On the main control broadcasting line of TV station, for the layout of program following characteristic is arranged: in certain relatively-stationary time cycle, television programs is a basic fixed, task period in the promptly online programme and clauses and subclauses period basic fixed.For example, task in the period in 19:40--21:40 TV play in night, broadcast three set contents of a certain TV series, this task period is broadcasted corresponding video content in the following order: ad entry, on collect playback, ad entry, this collection TV play head, ad entry, this collection TV play first, ad entry, this collection TV play second portion, ad entry ... this collection TV play N part, this collection TV play run-out, ad entry, next part advance notice, ad entry ... (next set content is identical with top order).
This layout is just to be fixed up in advance, and is corresponding,, broadcasts which captions material and also just can be fixed up in the period in each clauses and subclauses of this task period.Just be based on top characteristic, the captions mapping table just can be set up the incidence relation between program category, subtitle template ID, broadcast slot and the replacement material.
Fig. 5 has shown the structure of captions mapping tables, ClipType can corresponding a plurality of subtitle template ID and a plurality of broadcast time section, a template ID also can corresponding a plurality of ClipType.
Fig. 6 has shown the flow process that generates caption broadcasting list, mainly may further comprise the steps.
1. travel through the online programme of current channel, take out a undressed task period in the programme;
2. the 1. middle task period of taking out of traversal step, take out the undressed clauses and subclauses period of this task in the period;
3. 2. program category and the beginning and ending time of middle clauses and subclauses period of taking out are searched the mapping item that is complementary in the captions mapping table according to step, the condition of coupling is that program category is identical, and the time period of mapping item is in the beginning and ending time of clauses and subclauses period section, if do not find the mapping item that is complementary, then go to step 7.;
4. the template ID according to the mapping item finds corresponding template file;
5. replace template according to the material content and the template type of mapping item, generate caption object; This caption object is inherited the following attribute of task period, clauses and subclauses period and mapping item: the task identifier of caption object is inherited the GUID identifier of task period, the entry identifier of caption object is inherited the GUID identifier of clauses and subclauses period, the clauses and subclauses time period of caption object is inherited the beginning and ending time section of clauses and subclauses period, and the broadcast time of caption object is inherited the time period of mapping item;
6. the caption object that generates is joined in the current caption broadcasting list, and the template of unloading mapping item;
7. repeating step 2. to step 6., dispose up to all clauses and subclauses periods;
8. repeating step 1. to step 7., dispose up to all task periods;
9. repeat the next channel of above step process, up to handling all channels.
(3) caption broadcasting list that generates in the step (2) is sent to the broadcast film titler of corresponding channel according to channel identication;
(4) if the online programme of channel changes, then upgrade the caption broadcasting list of this channel.
In actual applications, the online programme meeting of channel is often adjusted, and what comprise Pgmtime postpones, inserts new program, a deletion program etc.Will carry out again coupling as input this moment with new online programme and former caption broadcasting list, generates new caption broadcasting list.
Fig. 7 has shown the flow process of upgrading caption broadcasting list, mainly may further comprise the steps.
1. the captions broadcast system obtains the change new online programme of channel of online programme in the video broadcast system;
2. travel through new online programme, take out a undressed task period of new online programme;
3. the 1. middle task period of taking out of traversal step, take out the undressed clauses and subclauses period of this task in the period;
4. according to the GUID identifier of task period and clauses and subclauses period, in old subtitle list, search corresponding caption object,, then generate new caption object, new caption object is joined in the former caption broadcasting list if do not find corresponding caption object;
5. the caption object that finds is carried out following processing:
Suppose that the beginning and ending time that the clauses and subclauses period broadcasts is respectively b0 and b1, the original beginning and ending time of broadcasting of caption object is respectively t0 and t1, and the beginning and ending time of the clauses and subclauses time period that caption object is original is respectively x0 and x1, and the time period, [t0, t1] was within [x0, x1];
The broadcast time started t0 ' that caption object is new=b0+ (x0-t0), close of transmission time t1 '=b1+ (x1-t1), will [t0 ', t1 '] fix on approximately within [b0, b1];
The clauses and subclauses time period that caption object is new is [b0, b1];
6. repeating step 3. to step 5., dispose up to all clauses and subclauses periods;
7. repeating step 2. to step 6., dispose up to all task periods;
8. traversal is through the amended caption broadcasting list of above-mentioned steps, task identifier and entry identifier according to each caption object, in new online programme, search and whether have the corresponding clauses and subclauses period, if there is no, then this caption object is deleted from caption broadcasting list, obtain final caption broadcasting list.
Broadcast in the film titler at channel, except the caption object that generates according to online programme, also have two types captions broadcast content: promptly intercut caption object and local captions and broadcast task.The establishment of these two kinds of caption object, layout and broadcast are directly broadcasted film titler at channel and are carried out.
This mechanism mainly is to provide a kind of method of manually carrying out captions establishment and layout for the user.On main control broadcasting line, also have the captions of some types to broadcast demand, for example station symbol of TV station, clock, the urgent news etc. that happens suddenly, often it doesn't matter with the online programme of channel in the broadcast of these captions.For these type of captions, directly enterprising edlin of broadcast film titler and the broadcast at channel gets final product, and after programme was adjusted, the content of this part caption object and broadcast time need not be adjusted.
Method of the present invention is not limited to above-mentioned embodiment, and those skilled in the art's technical scheme according to the present invention draws other execution mode, belongs to technological innovation scope of the present invention equally.
Claims (12)
1. multiple channel subtitle editing and playing method that online programme drives may further comprise the steps:
(1) the captions broadcast system obtains the online programme of all channels in the video broadcast system;
(2) the captions broadcast system generates the caption broadcasting list of all channels according to the online programme of all channels that obtain in the step (1) and the coupling that captions mapping table, subtitle template storehouse and captions material database carry out caption object;
(3) caption broadcasting list that generates in the step (2) is sent to the broadcast film titler of corresponding channel according to channel identication;
(4) if the online programme of channel changes, then upgrade the caption broadcasting list of this channel.
2. the multiple channel subtitle editing and playing method that a kind of online programme as claimed in claim 1 drives is characterized in that: the mode that the middle captions broadcast system of step (1) obtains online programme comprises " pushing away " pattern and " drawing " pattern; After described " pushing away " pattern is meant that the video broadcast system is packaged into the XML protocol format file that both sides define with online programme, the WEB service of initiatively calling the captions broadcast system, with XML protocol format file push to the captions broadcast system; Described " drawing " pattern is meant that the captions broadcast system sends the message that a request obtains online programme to the video broadcast system, after the video broadcast system receives this message, the online programme of captions broadcast system request is packaged into the XML protocol format file that both sides define, then this document is sent to the captions broadcast system.
3. the multiple channel subtitle editing and playing method that a kind of online programme as claimed in claim 2 drives is characterized in that the specific implementation process of described " pushing away " pattern may further comprise the steps:
1. the WEB service that the online programme of video broadcast system is obtained in definition in the captions broadcast system;
2. with step 1. in the definition the WEB service registry in the WEB server of captions broadcast system;
3. the WSDL with the 1. middle WEB service that defines of step is registered in the application gateway of video broadcast system;
4. the application gateway of video broadcast system calls the WEB service of obtaining the online programme of video broadcast system in the WEB server of captions broadcast system, and online programme is packaged into the XML protocol format that both sides define, and active push is given the captions broadcast system.
4. the multiple channel subtitle editing and playing method that a kind of online programme as claimed in claim 2 drives is characterized in that the specific implementation process of described " drawing " pattern may further comprise the steps:
1. dispose a messenger service in the application gateway of video broadcast system, described messenger service is subjected to the triggering from " obtaining online programme " message of captions broadcast system;
2. the captions broadcast system sends " obtaining online programme " message to the video broadcast system;
3. after the messenger service in the application gateway of video broadcast system receives this message, from database, take out the online programme of captions broadcast system request, be packaged into the XML protocol format file that both sides define, and this document is returned to the captions broadcast system.
5. the multiple channel subtitle editing and playing method that a kind of online programme as claimed in claim 1 drives is characterized in that: the captions mapping table described in the step (2) is the incidence relation between program category, subtitle template ID, broadcast slot and the replacement material in the online programme.
6. the multiple channel subtitle editing and playing method that a kind of online programme as claimed in claim 5 drives is characterized in that: corresponding a plurality of subtitle template ID of program category and a plurality of broadcast time section.
7. the multiple channel subtitle editing and playing method that a kind of online programme as claimed in claim 5 drives is characterized in that: the corresponding a plurality of program categories of subtitle template ID.
8. the multiple channel subtitle editing and playing method that a kind of online programme as claimed in claim 1 drives is characterized in that: the type of the subtitle template in the subtitle template storehouse described in the step (2) comprises the template of Alternate text, replaces the template of picture, the template of replacing animation and the template of not replacing.
9. the multiple channel subtitle editing and playing method that a kind of online programme as claimed in claim 1 drives, it is characterized in that: the type of the captions material in the captions material database described in the step (2) comprises word content, rolling text content, content of image files, animation file content, TV station's station symbol content, standard digital clock and simulated clock simulation clock.
10. the multiple channel subtitle editing and playing method that a kind of online programme as claimed in claim 1 drives is characterized in that the process of the caption broadcasting list of all channels of generation described in the step (2) may further comprise the steps:
1. travel through the online programme of current channel, take out a undressed task period in this online programme;
2. the 1. middle task period of taking out of traversal step, take out the undressed clauses and subclauses period of this task in the period;
3. 2. program category and the beginning and ending time of middle clauses and subclauses period of taking out are searched the mapping item that is complementary in the captions mapping table according to step, the condition of coupling is that program category is identical, and the time period of mapping item is in the beginning and ending time of clauses and subclauses period section, if do not find the mapping item that is complementary, then go to step 7.;
4. the template ID according to the mapping item finds corresponding template file;
5. replace template according to the material content and the template type of mapping item, generate caption object; This caption object is inherited the following attribute of task period, clauses and subclauses period and mapping item: the task identifier of caption object is inherited the identifier of task period, the entry identifier of caption object is inherited the identifier of clauses and subclauses period, the clauses and subclauses time period of caption object is inherited the beginning and ending time section of clauses and subclauses period, and the broadcast time of caption object is inherited the time period of mapping item;
6. the caption object that generates is joined in the current caption broadcasting list, and the template of unloading mapping item;
7. repeating step 2. to step 6., dispose up to all clauses and subclauses periods;
8. repeating step 1. to step 7., dispose up to all task periods;
9. repeat the next channel of above step process, up to handling all channels.
11. the multiple channel subtitle editing and playing method that a kind of online programme as claimed in claim 10 drives is characterized in that, upgrades the change process of caption broadcasting list of channel of online programme in the step (4) and may further comprise the steps:
1. the captions broadcast system obtains the change new online programme of channel of online programme in the video broadcast system;
2. travel through new online programme, take out undressed task period in this new online programme;
3. traversal step task period of taking out in 2., take out this task undressed clauses and subclauses period in the period;
4. according to the identifier of task period and clauses and subclauses period, in former caption broadcasting list, search corresponding caption object,, then generate new caption object, new caption object is joined in the former caption broadcasting list if do not find corresponding caption object;
5. the caption object that finds is carried out following processing:
Suppose that the beginning and ending time that the clauses and subclauses period broadcasts is respectively b0 and b1, the original beginning and ending time of broadcasting of caption object is respectively t0 and t1, and the beginning and ending time of the clauses and subclauses time period that caption object is original is respectively x0 and x1, and the time period, [t0, t1] was within [x0, x1];
The broadcast time started t0 ' that caption object is new=b0+ (x0-t0), close of transmission time t1 '=b1+ (x1-t1), will [t0 ', t1 '] fix on approximately within [b0, b1];
The clauses and subclauses time period that caption object is new is [b0, b1];
6. repeating step 3. to step 5., dispose up to all clauses and subclauses periods;
7. repeating step 2. to step 6., dispose up to all task periods;
8. traversal is through above-mentioned amended caption broadcasting list, task identifier and entry identifier according to each caption object, in new online programme, search and whether have the corresponding clauses and subclauses period, if there is no, then this caption object is deleted from caption broadcasting list, obtain final caption broadcasting list.
12. as the multiple channel subtitle editing and playing method of claim 10 or 11 described a kind of online programmes drivings, it is characterized in that: described identifier is the GUID identifier.
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