CN101668131A - Method for editing and broadcasting television caption based on virtual container - Google Patents
Method for editing and broadcasting television caption based on virtual container Download PDFInfo
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Abstract
The invention relates to the technology of television program production and broadcast in the field of radio and television, in particular to a method for editing and broadcasting television caption based on a virtual container. The method comprises the following steps: creating virtual container objects in a caption system, wherein each virtual container object comprises a plurality of actual caption objects which are all positioned in a physical area occupied by the virtual container objects; when rendering the caption objects in each virtual container object, only rendering the current visible caption object, and skipping other caption objects in the virtual container directly; switching each caption object in the virtual container into the current visible caption object through a triggering mechanism and rendering the current visible caption object; and drawing a final rendering result on a window after all caption objects in a caption queue are rendered. The method for editing andbroadcasting the television caption based on the virtual container can improve the convenience and efficiency of caption editing operation, and can improve the accuracy and security of caption broadcast.
Description
Technical field
The present invention relates to broadcasting and TV field TV programme record and broadcast technology, be specifically related to a kind of TV subtitling editor and broadcasting method based on virtual container.
Background technology
TV subtitling is compiled and to be broadcast technology and occupy an important position in the technical development of broadcast television industry, makes and playing device is the digitized important component parts of radio, TV and film industries based on the teletext of computer technology.Teletext making and broadcast system based on computer technology roughly experienced simple two dimensional surface captions, possessed several stages such as the two-dimentional picture and text of texture innervation, high-quality two dimension and the complete fusion of 3-D graphic.The application of graphic subtitle system has covered the every aspect of TV programme, comprises the making and the broadcast of the acute program of live news class program, studio interview class program, variety party class program, the live class program of physical culture, finance and economics information class program, meteorological GEOGRAPHIC ATTRIBUTES program and film and television; The existing live post-production that also has of occasion of using, the post of application comprises edit field, studio and broadcasting line.
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.
No matter at which kind of program category, no matter under which kind of application scenario, the convenient and swift property of editor's creation and correctness, the fail safe of broadcast content are the targets that a captions product is pursued always.But in existing all captions products, the place that all exists some to allow the user puzzle very much:
The first, when same physical location editor created a plurality of caption object, the selection of caption object bothered very much.In existing all captions products, editor creation window all is based on following principle and shows wherein caption object: mix according to certain algorithm according to the sequencing of these caption object in tabulation, the result of Hun Heing is presented at editor and creates in the window the most at last.The edit operation of these caption object all is based on following principle: all edit operations all are at the caption object of choosing, so want a caption object is carried out edit operation, at first will use click to choose this caption object.Wherein operation types has static rendering attributes such as vector adjusting, face Bian Ying to regulate, move positions, scaled, rotation, aligned in position, pel marshalling, the pel system of solutions etc.And, wanting to choose any one object owing to have many objects at same physical location, very trouble all can become.In Fig. 1, four caption object are arranged, be respectively oval object, picture frame object, text object and rectangular object, their physical location is basic identical, is presented at actual editor after mixing according to the front and back ordinal relation and creates in the window.When using mouse to click, according to the residing position of cursor point, always choose same pel, can't choose other pel.Common way is to choose certain object by means of the pel tabulation now, drags to other zones then and carries out attributes edit, and drag and drop are returned again at last, but also need to redefine the position.This brings very big inconvenience for the edit operation of pel.
The second, because the physical location of these caption object is identical, after mixing by the front and back ordinal relation, final mixing resultant is presented in the creation window, when regulating the static rendering attribute of some objects, can't see the whole of caption object.For example in example shown in Figure 1, can only see the situation of playing up on border all around of " ellipse " this caption object in the creation window, the face of " ellipse " has been sheltered from by other objects.Want to see the overall picture of " ellipse " object, this object must be moved to other places, regulated static rendering such as face Bian Ying after, move to original position again.In the captions creation of reality, this makes that also the efficient of making reduces greatly, and causes misoperation easily.
The 3rd, when carrying out the captions broadcast, general meeting be broadcasted according to the captions order, that is: object 1 importing-→ object 1 stop-→ object 1 derivation-→ object 2 importings-→ object 2 stops-→ object 2 derivation-→ ...-→ object N importing-→ object N stop-→ object N derivation.Under this presentation mode, require each caption object that " derivation " trick mode all will be set, otherwise the effect of the mistake that two objects are superimposed will occur.
This shows, solve the many pels editor of same physical location and the problem of broadcast, for the convenience and the efficient of the caption editing operation that improves caption system, and correctness and fail safe that the raising captions broadcast are very important.
Summary of the invention
The objective of the invention is to the editor that brought when having many pels on the same physical location of above-mentioned television subtitling system and the problem of broadcast, a kind of TV subtitling editor and broadcasting method based on virtual container is provided, this method can improve the convenience and the efficient of caption editing operation, and can improve correctness and fail safe that captions broadcast.
Technical scheme of the present invention is as follows: a kind of TV subtitling editor and broadcasting method based on virtual container, this method is created the virtual container object in caption system, each virtual container object comprises several actual caption object, and described caption object all is positioned within the occupied physical region of virtual container object; When the caption object in each virtual container object is played up, only current visible caption object is played up operation, other caption object that is arranged in virtual container is directly skipped; By trigger mechanism each caption object in the virtual container is switched to current visible caption object successively, and it is played up operation; When caption object all in the captions formation all play up finish after, final rendering result is plotted on the window.
Further, aforesaid TV subtitling editor and broadcasting method based on virtual container, wherein, the method for described establishment virtual container object has two kinds:
One, physical region of hand drawn in caption system, create a virtual container according to this zone, the attribute of virtual container comprises: Container Name, physical region, objects trigger device, object-detection device, current visible caption object, importing stunt, derivation stunt all are defaulted as " cutting soon " with " importing stunt " and " derivation stunt ";
Two, choose some a plurality of actual caption object that are positioned at same zone, create a virtual container, the attribute of virtual container comprises: Container Name, physical region, objects trigger device, object-detection device, current visible caption object, importing stunt, derivation stunt; The value of the union of maximum how much bounding boxs of these caption object, the total trick mode of these caption object " importing stunt " and " derivation stunt " attribute as this virtual container as " physical region " attribute of this virtual container.
Further, aforesaid TV subtitling editor and broadcasting method based on virtual container, wherein, described physical region is a rectangular area, or any one irregular closed area.
Further, aforesaid TV subtitling editor and broadcasting method based on virtual container, wherein, described objects trigger device comprises data, display icon and message response function three parts, data are for pointing to the pointer of the current visible subtitle object in the virtual container, display icon is presented at the upper left corner of virtual container, comprises " switching forward ", " index switching " and " switching backward " three kinds of icons.
Further, aforesaid TV subtitling editor and broadcasting method based on virtual container, wherein, described object-detection device comprises automatic absorption and shifts out two functions automatically, the area threshold values M that the object-detection device has defined the area threshold values F of automatic absorption and shifted out automatically, F and M are two percentages.
Further, aforesaid TV subtitling editor and broadcasting method based on virtual container, wherein, described importing stunt is meant that a caption object represents on the video screen in which way; Described derivation stunt is meant that a caption object disappears from video screen in which way.
Further, aforesaid TV subtitling editor and broadcasting method based on virtual container, wherein, the step that the caption object in the captions formation is played up is as follows:
(1) prepares one and play up buffering area RenderBuffer;
(2) from the captions formation, take out first caption object;
(3) judge whether this caption object belongs to some virtual containers,, then this caption object is rendered among the RenderBuffer if do not belong to any one virtual container;
(4) if this caption object belongs to some virtual containers, judge again whether this caption object is the current visible subtitle object of this virtual container, if current visible subtitle object then is rendered into this object among the RenderBuffer, if not then directly skipping;
(5) from the captions formation, take out next caption object, repeating step (3).
Further, aforesaid TV subtitling editor and broadcasting method based on virtual container, wherein, in whole captions formation, the sequencing of the caption object in virtual container is provided with flexibly, can select continuous arrangement, also can select to intert and arrange between other caption object.
Further, aforesaid TV subtitling editor and broadcasting method based on virtual container, wherein, after in a common caption object outside the virtual container is moved to the physical region that a virtual container contains, this common caption object will be set to the current visible subtitle object in the virtual container; Common caption object is moved to the bounding box rectangle that is meant this caption object in the physical region that a virtual container contains has had the part that surpasses automatic adsorption area threshold values F to be positioned at the physical region of virtual container.
Further, aforesaid TV subtitling editor and broadcasting method based on virtual container, wherein, after the caption object in the virtual container shifts out the physical region of place virtual container, virtual container will be automatically from wherein being put into this caption object the common caption object chained list, upgrades the current visible subtitle object in the virtual container simultaneously; The physical region that caption object shifts out the place virtual container is meant that the bounding box rectangle of this caption object has had and surpasses the part that shifts out area threshold values M automatically and be positioned at outside the rectangular area of virtual container.
Further, aforesaid TV subtitling editor and broadcasting method based on virtual container, wherein, surface rendering at the virtual container object has some grid line, and the user goes up the operation of alignment, alignment down, left-justify, Right Aligns, horizontal center, vertical center to a plurality of caption object in the virtual container according to grid line.
Beneficial effect of the present invention is as follows: " books " in the simulating reality of the present invention world and the relation of " container ", proposed the notion of a kind of " virtual container object ", solved with this and have the editor that many pels are brought and the problem of broadcast on same physical location of television subtitling system.By method proposed by the invention, the applying virtual container object is effectively managed other caption object, has improved the convenience and the efficient of caption editing operation, has also improved correctness and fail safe that captions broadcast simultaneously.
Description of drawings
Fig. 1 is the schematic diagram that is positioned at a plurality of pels of same physical location;
Fig. 2 is the structural representation of virtual container object and attribute thereof;
Fig. 3 is the caption object queue management mode schematic diagram based on virtual container;
Fig. 4 is for to play up flow chart based on the caption object of virtual container;
Fig. 5 is the workflow diagram of virtual container objects trigger device;
Fig. 6 is the virtual container object-detection device object workflow diagram of absorption automatically;
The workflow diagram that Fig. 7 shifts out automatically for virtual container object-detection device object.
Embodiment
Below in conjunction with accompanying drawing the present invention is described in detail.
The virtual container object that the present invention relates to refers to a kind of virtual caption object of specific type, is wherein comprising some other actual caption object, and these caption object are positioned within the occupied physical region of virtual container.
The structural representation of virtual container as shown in Figure 2, a virtual container comprises following attribute: Container Name, physical region, objects trigger device, object-detection device, current visible caption object, import stunt, derive stunt.
1. " Container Name " is mainly used to distinguish a plurality of containers in the captions formation.
2. " physical region " attribute both can be the zone of a rectangle, also can be any one irregular closed area.The physical region of virtual container is made up of the maximum bounding box rectangle of all caption object of virtual container.In fact, the physical region of a virtual container comprises one " rectangular area " and one " irregular area ".The computational methods of " rectangular area " adopt in the set operation the Union operator with the maximum bounding box rectangle " also " of all caption object together; " irregular area " then is that the peripheral boundary of these bounding box rectangles is combined, and the angle that constitutes every limit all is the polygon of 90 degree.This shows that the rectangular area comprises irregular area, the former area is more than or equal to the latter.In the specific implementation of virtual container, the two is used in different occasions: aspects such as " rectangular area " main use is drawn at the icon of objects trigger device, the detection foundation of object-detection device, the drafting of virtual container grid, in these purposes, all only relate to the drafting of window self, can not relate to playing up of caption object; " irregular area " mainly is used in the zone of playing up of current caption object in the virtual container, because its area, therefore can improve the efficient that refreshes of captions creation window less than the rectangular area, improves the caption editing response speed of system.
3. " objects trigger device " is a function items of virtual container, is mainly used to select caption object different in the container.The objects trigger device has comprised " data ", " display icon " and " message response function " three parts: data are to point to the pointer of the current viewable objects in the virtual container; Display icon is presented at the upper left corner of virtual container, is embodied in " switching forward ", " index switching " and " switching backward " three kinds of icons; The message response function is realized the message response from the various operations of inner (drafting) and outside (keyboard and mouse), the message response function is determined according to concrete action type, contained necessity operation to a caption object, those skilled in the art can compile and edit as required.
When virtual container is drawn, after having drawn current viewable objects, will draw out three icons in the upper left corner of virtual container according to the data of objects trigger device.But these three icons are not plotted in the internal memory of caption object, but directly are plotted in the captions creation window.That is to say that the objects trigger device only appears on the display of computer, and can not appear on the video-frequency monitor of the final output of captions.When the user uses the shortcut (as PageDn or PageUp) of keyboard or click objects trigger device, the objects trigger device will upgrade data (being current viewable objects) wherein according to type of message, and up-to-date viewable objects is notified to virtual container.For example, when clicking " switching forward " icon, the objects trigger device will carry out following operation:
(1) in the captions formation, locatees the pointer D of current viewable objects;
(2) in the captions formation, search and be positioned at the object P in caption object D front, and this object belongs to this virtual container;
(3) objects trigger device P is set to current viewable objects, notifies virtual container that this object is played up out simultaneously.
In a virtual container, can only see one of them caption object, promptly current visible caption object, the present invention is switched current visible subtitle object fast by the objects trigger device.Select caption object in the virtual container fast by on the virtual container object surface, drawing a designator directly perceived (Indicator).Fig. 5 has represented the course of work of the objects trigger device of virtual container.
4. " object-detection device " is that the virtual container object is used for automatically a kind of mechanism of management caption object wherein.Comprise automatic absorption and shift out two functions automatically:
(1) at first in virtual container, set three options: the first, whether enable automatic detecting function; The second, the area threshold values F of automatic absorption; The 3rd, the area threshold values M that shifts out automatically.F and M are two percentages, and concrete numerical value can determine according to the requirement to system, as 70%, 80%, 90% or the like.If first option is not selected, then the object-detection device is not worked, and both options of back are invalid.In this case, can only use other function items that a caption object is brought in the virtual container, perhaps therefrom shift out.Following description is based on has enabled automatic detecting function.
(2) user in captions creation window, use mouse carry out outside the container caption object pull (Drag ﹠amp; When Drop) operating, when the bounding box rectangle of this caption object had had the part that surpasses automatic adsorption area threshold values F to be positioned at the rectangular area of virtual container, virtual container was just included with this caption object, and is set at current viewable objects.The rectangular area of supposing virtual container is X, and the bounding box rectangle of caption object is Y, then:
if((X∩Y)/Y＞＝F)
{
With this caption object virtual container of packing into, and be set to current viewable objects, will upgrade simultaneously
The rectangular area of this virtual container and the value of irregular area.
}
(3) when the user uses mouse to pull current visible subtitle object in the container to operate, when the bounding box rectangle of this caption object has had outside the rectangular area that is positioned at virtual container above the part that shifts out area threshold values M automatically, virtual container just therefrom shifts out this caption object, and the next object in the container is set to current viewable objects.The rectangular area of supposing virtual container is X, and the bounding box rectangle of caption object is Y, then:
if((Y-(X∩Y))/Y＞＝M)
{
If (also having caption object in the container)
{
This caption object is shifted out virtual container, and the next object in the container is set to
Current viewable objects will be upgraded the rectangular area and the region of disorder of this virtual container simultaneously
The value in territory.
}
else
{
The current viewable objects of virtual container is set to NULL, refreshes virtual container then
The rectangular area.
}
}
Based on the automatic absorption of object-detection device with shift out mechanism, the present invention carries out intelligent management to the caption object in the container.By this technology, some caption object can be included in automatically or shifted out current virtual container, need not the method that is provided with by manual.After a common caption object outside the container is moved in the physical region at a virtual container place, this virtual container object will arrive this common caption object " dress " among this container automatically, and this caption object is set to current viewable objects.Otherwise after the caption object in the virtual container shifted out the region, virtual container will be automatically from wherein shifting out this caption object container, is put in the common caption object chained list, will upgrade the current viewable objects in this container simultaneously.In the process of adsorbing automatically and shifting out automatically, can not change the front and back ordinal relation of all caption object in total captions formation.Fig. 6 and Fig. 7 represent the automatic absorption of object-detection device of virtual container and the course of work that shifts out automatically respectively.
5. " current visible caption object " is meant the current caption object that is in active state in virtual container, has and have only one " current visible caption object " in the virtual container.
The method that common caption object is set to the current visible caption object in the virtual container has two kinds: the first, and the automatic adsorption function of the object-detection device by virtual container; The second, set by function items by force.The former introduces hereinbefore, below second kind of situation is once described.
(1) chooses a caption object P;
(2) by mouse or keyboard message, " the virtual container function of packing into " of calling this caption object P (LaunchToVirtualContainer);
(3) LaunchToVirtualContainer can calculate all virtual containers that P can pack into according to the Rectangular Bounding Volume of caption object P, and carries out object according to user's selection and pack into.Performing step is as follows:
A. travel through current all virtual container objects, according to their physical region and the situation (judging) that intersects of the Rectangular Bounding Volume of caption object P according to a threshold values, determine whether caption object P can pack into wherein, just obtained a virtual container tabulation since like this;
If b. caption object P itself belongs to a container, in the virtual container that then the obtains tabulation this virtual container is deleted from above.Finally just obtained the virtual container tabulation L that caption object P can pack into;
C. top virtual container tabulation L is presented among the ListBox, selects for the user;
D. when the user selects a virtual container from L after behind the C, carry out a series of associative operations of object: P is encased among the C with caption object, and is arranged to the current visible caption object of C, upgrades the physical region of C then, and finishes refreshing of this zone; If caption object P belonged to a virtual container D originally, also to from D, caption object P be shifted out, recomputate the current visible subtitle object of D then, upgrade the physical region of D, and finish refreshing of this zone.
6. " importing stunt " and " derivation stunt " attribute is the broadcast stunt of virtual container object, if certain caption object in the container is not provided with trick mode, it will inherit " the importing stunt " and " derivation stunt " in the container so, like this, just need not all carry out the setting of trick mode for each object in the container, when broadcasting, needn't worry to occur the problem of mutual aliasing between the object.
The importing stunt refers to this caption object and represents in which way on the video screen, and the derivation stunt refers to this caption object and disappears from video screen in which way.For a caption object, can adopt different importing stunts and derive stunt.Its kind depends on the realization of a concrete caption system to trick mode.Common having soon cut, is fade-in fade-out, ripples, scrolling, queuing, rolling, draw that picture, expansion, flag waft, cracked, two-dimensional space conversion, three dimensions conversion etc.
Definition importing stunt and derivation stunt mainly are the wherein stunt settings of object for convenience in virtual container.For example in libretto (as personage's dialogue, a lyrics) container that has sentence up to a hundred even thousands of caption object, for stunt with quantity of parameters, it is very loaded down with trivial details all setting the trick mode of coming in and going out for each libretto, and for the libretto of new " threading " container, if forgotten the setting trick mode, when broadcasting, reality will cause makeing mistakes.Therefore in virtual container, set and import and derive the wherein total broadcast mode of caption object of stunt conduct.
Certainly, for the flexibility that captions broadcast, also allow the object in the container to broadcast: to solve this problem in virtual container by the option that " whether using unified trick mode " is set according to the trick mode of oneself.Parameter setting method and other caption object of the importing stunt of virtual container and derivation stunt are identical.
The establishment of virtual container object has following two kinds of approach:
(1) as creating other caption object, physical region of hand drawn is created a virtual container according to this zone, and " importing stunt " and " derivation stunt " all is defaulted as " cutting soon ";
(2) choose some a plurality of actual caption object that are positioned at same zone, create a virtual container object automatically.The value of the union (Union) of maximum how much bounding boxs of these caption object, the total trick mode of these caption object " importing stunt " and " derivation stunt " attribute as this virtual container as " physical region " attribute of this virtual container.
The implementation method that the caption object based on virtual container that the present invention relates to is played up technology is: when carrying out static rendering for the caption object of the N in the virtual container, only need play up current visible caption object, other caption object can be skipped.Like this, just improved the editorial efficiency of caption system greatly.
The step of playing up be the traversal whole caption object, each object is handled, idiographic flow as shown in Figure 4:
The first step: prepare one and play up buffering area RenderBuffer.
Second step: from the captions formation, take out first caption object.
The 3rd step: judge whether this caption object belongs to some virtual containers,, then this object is rendered among the RenderBuffer if do not belong to any one virtual container.
The 4th step:, judge again whether this caption object is the current visible subtitle object of this virtual container, if current viewable objects then is rendered into this object among the RenderBuffer if this caption object belongs to some virtual containers; If not then directly skipping.
The 5th step: from the captions formation, take out next caption object, repeated for the 3rd step.
The 6th step: caption object all in the captions all dispose, and the final rendering result among the RenderBuffer is plotted in the window.
This shows that use is played up technology based on the caption object of virtual container can make the efficient of caption rendering be increased exponentially, thereby the editorial efficiency of whole system is increased exponentially.
The queue management mode of the caption object of virtual container as shown in Figure 3, in a caption object formation, the sequencing of the caption object in the virtual container both can be continuous, also can intert between other caption object, had just improved the flexibility of broadcasting sequence greatly since like this.
Putting in order of caption object determined the order of its broadcast, and this order at first is the order that caption object is created.Then by the manual method of setting, the needs that in the captions queue table, broadcast, the freely order of crawl according to reality.Stand in the angle of whole captions formation, N object in virtual container and nonessential be N continuous in formation object, but can intert between other noncontainer object.This also is to realize by the manual method that pulls.
For the ease of the alignment operation of a plurality of caption object in the virtual container, the invention provides a kind of grid alignment techniques of virtual container, it is the mechanism that all caption object are carried out aligned in position in a kind of virtual container.The mode that realizes is to draw some grid line in the virtual container object surface, and the scale of grid can be selected by the user.Grid line is a display properties of virtual container object, and its data attribute has following two:
(1) whether draws the container grid, show as a switching variable;
(2) density of grid comprises horizontal and vertical density, and showing as with the pixel is the numerical value of unit.
Like this, just operations such as alignment, alignment down, left-justify, Right Aligns, horizontal center, vertical center can have been gone up flexibly to a plurality of caption object in the virtual container.
Method of the present invention is not limited to the embodiment described in the 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. TV subtitling editor and broadcasting method based on a virtual container, it is characterized in that: this method is created the virtual container object in caption system, each virtual container object comprises several actual caption object, and described caption object all is positioned within the occupied physical region of virtual container object; When the caption object in each virtual container object is played up, only current visible caption object is played up operation, other caption object that is arranged in virtual container is directly skipped; By trigger mechanism each caption object in the virtual container is switched to current visible caption object successively, and it is played up operation; When caption object all in the captions formation all play up finish after, final rendering result is plotted on the window.
2. TV subtitling editor and broadcasting method based on virtual container as claimed in claim 1, it is characterized in that: the method for described establishment virtual container object is: physical region of hand drawn in caption system, create a virtual container according to this zone, the attribute of virtual container comprises: Container Name, physical region, objects trigger device, object-detection device, current visible caption object, importing stunt, derivation stunt all are defaulted as " cutting soon " with " importing stunt " and " derivation stunt ".
3. TV subtitling editor and broadcasting method based on virtual container as claimed in claim 1, it is characterized in that: the method for described establishment virtual container object is: choose some a plurality of actual caption object that are positioned at same zone, create a virtual container, the attribute of virtual container comprises: Container Name, physical region, objects trigger device, object-detection device, current visible caption object, importing stunt, derivation stunt; The value of the union of maximum how much bounding boxs of these caption object, the total trick mode of these caption object " importing stunt " and " derivation stunt " attribute as this virtual container as " physical region " attribute of this virtual container.
4. as claim 2 or 3 described TV subtitling editor and broadcasting methods based on virtual container, it is characterized in that: described physical region is a rectangular area, or any one irregular closed area.
5. as claim 2 or 3 described TV subtitling editor and broadcasting methods based on virtual container, it is characterized in that: described objects trigger device comprises data, display icon and message response function three parts, data are for pointing to the pointer of the current visible subtitle object in the virtual container, display icon is presented at the upper left corner of virtual container, comprises " switching forward ", " index switching " and " switching backward " three kinds of icons.
6. as claim 2 or 3 described TV subtitling editor and broadcasting methods based on virtual container, it is characterized in that: described object-detection device comprises automatic absorption and shifts out two functions automatically, the area threshold values M that the object-detection device has defined the area threshold values F of automatic absorption and shifted out automatically, F and M are two percentages.
7. as claim 2 or 3 described TV subtitling editor and broadcasting methods based on virtual container, it is characterized in that: described importing stunt is meant that a caption object represents on the video screen in which way; Described derivation stunt is meant that a caption object disappears from video screen in which way.
8. TV subtitling editor and broadcasting method based on virtual container as claimed in claim 1, it is characterized in that: the step that the caption object in the captions formation is played up is as follows:
(1) prepares one and play up buffering area RenderBuffer;
(2) from the captions formation, take out first caption object;
(3) judge whether this caption object belongs to some virtual containers,, then this caption object is rendered among the RenderBuffer if do not belong to any one virtual container;
(4) if this caption object belongs to some virtual containers, judge again whether this caption object is the current visible subtitle object of this virtual container, if current visible subtitle object then is rendered into this object among the RenderBuffer, if not then directly skipping;
(5) from the captions formation, take out next caption object, repeating step (3).
9. TV subtitling editor and broadcasting method based on virtual container as claimed in claim 8, it is characterized in that: in whole captions formation, the sequencing of the caption object in virtual container is provided with flexibly, can select continuous arrangement, also can select to intert and between other caption object, arrange.
10. TV subtitling editor and broadcasting method based on virtual container as claimed in claim 6, it is characterized in that: after in a common caption object outside the virtual container is moved to the physical region that a virtual container contains, this common caption object will be set to the current visible subtitle object in the virtual container; Common caption object is moved to the bounding box rectangle that is meant this caption object in the physical region that a virtual container contains has had the part that surpasses automatic adsorption area threshold values F to be positioned at the physical region of virtual container.
11. TV subtitling editor and broadcasting method based on virtual container as claimed in claim 6, it is characterized in that: after the caption object in the virtual container shifts out the physical region of place virtual container, virtual container will be automatically from wherein being put into this caption object the common caption object chained list, upgrades the current visible subtitle object in the virtual container simultaneously; The physical region that caption object shifts out the place virtual container is meant that the bounding box rectangle of this caption object has had and surpasses the part that shifts out area threshold values M automatically and be positioned at outside the rectangular area of virtual container.
12. as claim 1 or 2 or 3 described TV subtitling editor and broadcasting methods based on virtual container, it is characterized in that: the surface rendering at the virtual container object has some grid line, and the user goes up the operation of alignment, alignment down, left-justify, Right Aligns, horizontal center, vertical center to a plurality of caption object in the virtual container according to grid line.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102724418A (en) * | 2011-05-11 | 2012-10-10 | 新奥特（北京）视频技术有限公司 | Method for realizing special fade-in and fade-out effects in three-dimensional scene |
| CN102736837A (en) * | 2011-05-10 | 2012-10-17 | 新奥特（北京）视频技术有限公司 | Subtitle editing method based on grid |
| CN102736837B (en) * | 2011-05-10 | 2016-12-14 | 新奥特（北京）视频技术有限公司 | A kind of caption editing method based on grid |
| CN107302717A (en) * | 2017-06-30 | 2017-10-27 | 武汉斗鱼网络科技有限公司 | Barrage information broadcasting method and device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100433807C (en) * | 2002-05-15 | 2008-11-12 | 汤姆森特许公司 | Close captioning system in windows based graphics system |
| GB0426170D0 (en) * | 2004-11-29 | 2004-12-29 | Falanx Microsystems As | Processing of computer graphics |
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2008
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102736837A (en) * | 2011-05-10 | 2012-10-17 | 新奥特（北京）视频技术有限公司 | Subtitle editing method based on grid |
| CN102736837B (en) * | 2011-05-10 | 2016-12-14 | 新奥特（北京）视频技术有限公司 | A kind of caption editing method based on grid |
| CN102724418A (en) * | 2011-05-11 | 2012-10-10 | 新奥特（北京）视频技术有限公司 | Method for realizing special fade-in and fade-out effects in three-dimensional scene |
| CN102724418B (en) * | 2011-05-11 | 2016-06-15 | 新奥特（北京）视频技术有限公司 | A kind of three-dimensional scenic realizes out the method for stunt |
| CN107302717A (en) * | 2017-06-30 | 2017-10-27 | 武汉斗鱼网络科技有限公司 | Barrage information broadcasting method and device |
| CN107302717B (en) * | 2017-06-30 | 2019-04-05 | 武汉斗鱼网络科技有限公司 | Barrage information broadcasting method and device |
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