CN102663988B - Method, device and system for broadcasting subtitles - Google Patents
Method, device and system for broadcasting subtitles Download PDFInfo
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- CN102663988B CN102663988B CN201210133598.2A CN201210133598A CN102663988B CN 102663988 B CN102663988 B CN 102663988B CN 201210133598 A CN201210133598 A CN 201210133598A CN 102663988 B CN102663988 B CN 102663988B
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Abstract
The embodiment of the invention discloses a method for broadcasting subtitles. The method comprises the following steps of receiving a subtitle broadcasting order, wherein the broadcasting order contains broadcast subtitle information; acquiring starting physical coordinate information of the subtitle broadcasting in a display screen and marking the starting physical coordinate information as first physical coordinate information; marking first physical coordinate information of an administrated screen in the display screen as second physical coordinate information; establishing correlation of the physical coordinate information of the broadcasting subtitles in the administrated screen and the second physical coordinate information according to the first physical coordinate information and the broadcasting subtitle information; and rendering the broadcasting subtitles time by time at a designated rendering speed under the correlation instruction, wherein the beginning time of each rendering is the acquired existing central processing unit (CPU) system time. According to the embodiment, frames utilized by different node computers are unnecessary to synchronize, each node computer is allowed to be rendered by different frame frequencies, so that the splitting problem of the display of a subtitle unit utilizing the frame synchronizing technology in the prior art can be overcome.
Description
Technical field
The present invention relates to Subtitle Demonstration technical field, more particularly, relate to a kind of captions broadcasting method, device and system.
Background technology
It is the modern captions treatment technology being applied in publicity, mark and showing that captions are reported, captions are reported need by means of the processing caption data of the next client, and show caption content with carriers such as LED displays to beholder, display platform is that example illustrates in a distributed manner: distributed display platform utilizes multiple stage Node station as display translation equipment, and each Node station coordinates the system exporting and specify number of words and font.Upper service end receives display request, the next client asks the captioning unit that need show to export to as a whole on display screen according to display, captioning unit will cross over multiple screen after exporting successively, and each Node station controls at least one screen, and multiple Node station coordinates the whole captioning unit of output.
Existing multiple Node station coordinates the report form controlling display captioning unit, with frame synchronizing in control procedure, namely the frame per second (N frame is per second) of each Node station and the captions step-length (the every frame of M element length) of every frame is fixed, to ensure to report synchronism and fluency.
But, above-mentioned report form in multiple Node station wherein certain Node station generation computing capability be discontented with toe framing rate and every frame captions step-length, or when there is the fault promoted suddenly in certain Node station computing capability, to occur that this Node station controls the delay of sub-screen display or radical situation, thus generation captioning unit shows the problem of tearing.
Summary of the invention
In view of this, the invention provides a kind of captions broadcasting method, device and systems approach, device and system, with the problem avoiding captions report process Subtitle Demonstration to tear.
A kind of captions broadcasting method, comprising:
Receive captions and report instruction, described report instruction comprises report caption information;
Obtain captions in display screen and report initial physics coordinate information, be designated as the first physical coordinates information;
And administer the physical coordinates information of screen in described display screen, be designated as the second physical coordinates information;
Associating of the physical coordinates information of described report captions in administered screen and described second physical coordinates information is built according to described first physical coordinates information and described report caption information;
To specify rendering speed successively to described report caption rendering under the instruction of this association, play up the time started is the current C PU system time obtained at every turn.
In order to improve such scheme:
Described report caption information is specially sub-captioning unit and reports parameter, and the generation of described sub-captioning unit comprises:
Carried out texture by server play up according to reporting caption information in described Node station, generate the captioning unit possessing preset format;
With report caption information, described captioning unit cutting is generated at least one sub-captioning unit according to the resolution of described Node station;
Described report parameter comprises caption rendering fiducial time and rendering speed.
With report caption information, described captioning unit cutting is generated at least one sub-captioning unit according to the resolution of described Node station to be specially:
According to the resolution of described Node station and described report caption information, described captioning unit cutting is generated N number of sub-captioning unit to be implemented as:
wherein, described t is the font number in described report caption information; Described T
wfor the set width in described report caption information, described Dw is the resolution laterally value in the resolution of described Node station operational factor.
Generate the captioning unit that the captioning unit possessing preset format is implemented as generating pictures form.
In order to improve such scheme, described broadcasting method also comprises: receive and start to report Ts fiducial time, described start to report to be sent by server by utilizing Linux platform NTP synchronous method fiducial time obtain, be specially:
Obtained by server and record the system time Tf of each task node machine, and setting Td time of delay;
Calculate the described Ts=Tf+Td of superposition and send.
A kind of processing caption data device, comprising:
Report instruction reception unit, report instruction for receiving captions, described report instruction comprises report caption information;
Physical coordinates information acquisition unit, reporting initial physics coordinate information for obtaining captions in display screen, being designated as the first physical coordinates information, obtains the physical coordinates information of Node station administration screen in described display screen, is designated as the second physical coordinates information;
And, build associating of the physical coordinates information of described report captions in administered screen and described second physical coordinates information according to described first physical coordinates information and described report caption information;
Rendering unit, to specify rendering speed successively to described report caption rendering under the instruction of this association, play up the time started is the current C PU system time obtained at every turn.
Preferably, described report caption information is specially sub-captioning unit and reports parameter, and the generation of described sub-captioning unit comprises:
Carried out texture by server play up according to reporting caption information in described Node station, generate the captioning unit possessing preset format;
With report caption information, described captioning unit cutting is generated at least one sub-captioning unit according to the resolution of described Node station, is specially:
According to the resolution of described Node station and described report caption information, described captioning unit cutting is generated N number of sub-captioning unit to be implemented as:
wherein, described t is the font number in described report caption information; Described T
wfor the set width in described report caption information, described Dw is the resolution laterally value in the resolution of described Node station operational factor;
Described report parameter comprises caption rendering fiducial time and rendering speed.
Starting to report receiving element fiducial time, starting to report Ts fiducial time for receiving, described start to report to be sent by server by utilizing Linux platform NTP synchronous method fiducial time obtain, be specially:
Obtained by server and record the system time Tf of each task node machine, and setting Td time of delay;
Calculate the described Ts=Tf+Td of superposition and send.
A kind of captions broadcasting system, comprising: described processing caption data device and upper server.
A kind of captions broadcasting system, comprising: described processing caption data device and server, and described server is have in captions report task node machine.
As can be seen from above-mentioned technical scheme, the captions broadcasting method of the embodiment of the present invention, node pusher side by build report associating of the physical coordinates information of captions in administered screen and described second physical coordinates information, captioning synchronization is converted to Node station administer the first physical coordinates synchronizing information of screen in described display screen, and when playing up captions according to appointment rendering speed, multiple Node station is all according to utilizing carry out the fiducial time after cpu system time adjustment when playing up beginning at every turn, ensure that multiple Node station is synchronously played up for the cooperation of report captions, and use frame synchronization without the need to each Node station, each Node station is allowed to use playing up of different frame per second, overcome in prior art and utilize frame synchronizing captioning unit to show the problem of tearing, in addition, broadcasting method in the embodiment of the present invention make use of the captioning unit by consolidation form, the method that sub-captioning unit carries out reporting is cut into according to specifying specification, achieve the technique effect that full word storehouse is reported.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of captions broadcasting method schematic flow sheet disclosed in the embodiment of the present invention;
Fig. 2 a kind of sub-captioning unit of captions broadcasting method disclosed in further embodiment of this invention generates method flow schematic diagram;
The structural representation of captioning unit in Fig. 3 a kind of captions broadcasting method disclosed in further embodiment of this invention;
Fig. 4 is a kind of captions broadcast device structural representation disclosed in further embodiment of this invention;
Fig. 5 is a kind of captions broadcasting system structural representation disclosed in further embodiment of this invention;
Fig. 6 is a kind of captions broadcasting system structural representation disclosed in further embodiment of this invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Before the elaboration carrying out embodiment, it should be explicitly made clear at this point, in order to illustrate that illustration is clear, this explanation method for processing caption be that application scenarios is described by main display platform in a distributed manner, described distributed display platform is with upper server and some the next Node station compositions, and carry out cooperation by each described Node station and complete, existing Node station realizes reporting synchronously by frame synchronizing, reporting simultaneous techniques due to this kind cannot the synchronous computing of achieve frame when certain Node station occurs that computing capability changes, thus there is the phenomenon that this Node station administration screen display is torn.
Inventor, for above-mentioned prior art problem, is studied with logical derivation and discloses a kind of captions broadcasting method, device and the system disclosed in the embodiment of the present invention, with the problem avoiding captions report process Subtitle Demonstration to tear.
Fig. 1 shows a kind of captions broadcasting method, comprising:
Step 11: receive captions and report instruction, described report instruction comprises report caption information;
Described report caption information comprises: sub-captioning unit and report parameter, and the generation of described sub-captioning unit, see Fig. 2, comprising:
Step 21: carried out texture by server play up according to reporting caption information in described Node station, generate the captioning unit possessing preset format;
To embed the server of windows system, the support of windows system runs full word storehouse, and can coordinate with compatible software the font in character library is processed, unloading and output.
Described texture is played up and is referred to that described server carries out the processing of font, size and lines to reporting captions according to the requirement of report font, described preset format can be selected temporarily, namely choose from several consolidation form, or carry preset format information when sending report request with user orientation server, do not limit to, such as, generate the captioning unit that the captioning unit possessing preset format is implemented as generating pictures form, namely PNG JPG GIF the picture format such as BMP.
Step 22: with report caption information, described captioning unit cutting is generated at least one sub-captioning unit according to the resolution of described Node station.
Be implemented as:
Wherein, described t is the font number in described caption information; Described TW is the set width in described font information, and described Dw is the resolution laterally value in the resolution of described Node station operational factor; Suppose that Node station resolution is DW x DH=1024x768, in subtitle parameters, font size is standard x=60pt, the size representing a word is TW x TH=60pt x 125pt, wherein, described pt represent pixel value, because Chinese character takies 2 characters, then when word number is t=20 in captions, captions picture total length after playing up is t x TW pt=20x60x 2, then
In above-mentioned illustration, described captioning unit is according to Node station resolution, and font information, be divided into 3 captioning unit, and the Node station with report task will be reported to these 3 captioning unit.(described report parameter comprises caption rendering fiducial time and rendering speed to resolve described report parameter by task node machine client.) after, the report instruction issued according to server, the report form of above-mentioned 3 captioning unit is distributed and indicated, have received the sub-captioning unit of all segmentation formation at each task node machine after, what the screen of its administration controlled display is a part of content with play position information matches.
Step 12: obtain captions in display screen and report initial physics coordinate information, be designated as the first physical coordinates information, and administer the physical coordinates information of screen in described display screen, be designated as the second physical coordinates information;
The described first physical coordinates information sub-captioning unit be designated as in above-described embodiment explanation starts the coordinate reported, and namely screen coordinate normalization is expressed as (1.0,1.0) place.
Step 13: build associating of the physical coordinates information of described report captions in administered screen and described second physical coordinates information according to described first physical coordinates information and described report caption information;
It is pointed out that the unit of described first physical coordinates and the second physical coordinates pixel can carry out metering as unit and illustrate:
(in screen unit, screen 1,2,3 and 4 sorts citing clockwise for the multi-screen unit that forms with the screen unit of 2*2, do not limit to) display wall, each screen is wide by 1024, high by 768, each Node station can control at least one screen unit, and this kind of control form does not limit to.
The upper left side apex coordinate of screen 2 is (1024,768*2), and upper right side apex coordinate is (1024*2,768*2);
The initial physical coordinates of captions, namely, first physical coordinates is be that the summit, upper right side (1024*2,768*2) being assumed to be screen 2 starts, and it is (X with normalization coordinate form (coordinate information comprised in the described report caption information that namely this Node station is corresponding)
u, Y
u)=(1024x 2/ (1024x 2), 768x 2/ (768x 2))=i.e. (1.0,1.0).
Now suppose that display screen lower left origin is R
0overall coordinate be (0,0), X in the first coordinate information of captions can be drawn
w:
X
W＝X
U-R
W＝1.0*1024*2；
YW in first physical coordinates:
Y
W＝Y
U-R
H＝1.0*768*2；
Wherein, R
wfor the width of display screen, R
hfor the height of display screen.
Suppose a Node station administer the first physical coordinates information of each screen, namely the overall coordinate (being the second physical coordinates information) of this screen is (X
c, Y
c) (1024,768*2), screen width W
c1024, starting altitude is HC768, according to the X tried to achieve before
wand Y
w, for separate unit Node station client, described report captions at this Node station administer physical coordinates information in screen, the local coordinate system namely under this screen (screen 2) is:
X
L＝X
U-R
W-X
C
Y
L＝Y
U*R
H-Y
C+H
C；
That is:
X
L＝|Xw-Xc|＝1024*2-1024＝1024；
Y
L＝|Yw-Yc|+Hc＝768*2-768*2+768＝768；
Can see from the above results, when captions are about to move and move, position reported in the captions shown by each Node station, is only subject to X
cand Y
cthe impact of (being the second physical coordinates information).Further, the rotating direction reporting parameter in setting is in the process of captions horizontal rolling, can think that YC is constant.
That is, build report associating of the physical coordinates information of captions in administered screen and described second physical coordinates information, the problem of the first physical coordinates synchronizing information of screen in described display screen that be that to be Node station by the question variation of captioning synchronization administer.
Step 14: to specify rendering speed successively to described report caption rendering under the instruction of this association, play up the time started is the current C PU system time obtained at every turn.
General rendering image 30 – per second of Node station client 60 times, the process that described rendering image carried out before Node station is play, incite somebody to action output display on a display screen after playing up, rendering speed is relevant with default rendering speed.
When playing up at every turn:
First Node station client run play up at every turn before record present system time T
s(being accurate to Microsecond grade), then before next frame is played up, register system time T again
e(playing up the system after a frame).By calculating the interval of two times, the summation that previous frame plays up CPU time sheet used just can be obtained.Suppose that the speed setting captions rolling is S
u, represent per second through how many mobile units (mobile unit can the pixel on display screen measure), captions current location be X
current, so can obtain the position X of next frame captions
next
The captions misalignment then once played up is X
next– X
current;
In playing up at N time, when supposing that first time plays up, subtitle position is X
0, the record time started is T
1B, the record end time is T
1E, when playing up for the N time, subtitle position is X
n, the record time started is T
nB, the record end time is T
nE, can think T
nS=T
(N-1) E, so can draw:
Namely
Namely
Because T
1Sfiducial time reported in captions, and the fiducial time that can be considered as each Node station is constant, so at T
nEmoment, the X of all Node station clients
nbe all equal, thus achieve the report synchronism of each task node machine, and above-mentioned derivation to the frame per second of each Node station without the need to being fixedly installed, ensure that multiple Node station for report captions cooperation synchronously play up.
Fig. 3 shows another captions broadcasting method, comprising:
Step 31: receive captions and report instruction, described report instruction comprises report caption information;
Step 32: obtain captions in display screen and report initial physics coordinate information, be designated as the first physical coordinates information;
And administer the physical coordinates information of screen in described display screen, be designated as the second physical coordinates information;
Step 33: build associating of the physical coordinates information of described report captions in administered screen and described second physical coordinates information according to described first physical coordinates information and described report caption information;
Step 34: receive and start to report Ts fiducial time;
Described start to report to be sent by server by utilizing Linux platform NTP synchronous method fiducial time obtain, be specially:
Obtained by server and record the system time Tf of each task node machine, and setting Td time of delay;
Calculate the described Ts=Tf+Td of superposition and send.
Step 35: to specify rendering speed successively to described report caption rendering under the instruction of described association, play up the time started is the current C PU system time obtained at every turn.
It should be noted that: the client that described Node station is corresponding receives corresponding sub-captioning unit and the wrapper reporting parameter, identify described sub-captioning unit, and reported by the client that Node station is corresponding according to described report parameter, described Node station can by upper server, issue realization as distributed platform server is unified, described Node station is the Node station based on LINUX system;
Also can using in some Node station as server, specific implementation form can adjust according to system architecture and communication protocol (can select ICP/IP protocol in the present embodiment), is not limited to wherein a kind of.
Fig. 4 shows a kind of processing caption data device, comprising:
Report instruction reception unit 41, report instruction for receiving captions, described report instruction comprises report caption information;
Described report caption information is specially sub-captioning unit and reports parameter, and the generation of described sub-captioning unit comprises:
Carried out texture by server play up according to reporting caption information in described Node station, generate the captioning unit possessing preset format;
With report caption information, described captioning unit cutting is generated at least one sub-captioning unit according to the resolution of described Node station, is specially:
According to the resolution of described Node station and described report caption information, described captioning unit cutting is generated N number of sub-captioning unit to be implemented as:
wherein, described t is the font number in described report caption information; Described T
wfor the set width in described report caption information, described Dw is the resolution laterally value in the resolution of described Node station operational factor.
Described report parameter comprises caption rendering fiducial time and rendering speed.
Physical coordinates information acquisition unit 42, reporting initial physics coordinate information and the physical coordinates information of Node station administration screen in described display screen for obtaining captions in display screen, being designated as the first physical coordinates information;
And, build associating of the physical coordinates information of described report captions in administered screen and described second physical coordinates information according to described first physical coordinates information and described report caption information;
Rendering unit 43, to specify rendering speed successively to described report caption rendering under the instruction of this association, play up the time started is the current C PU system time obtained at every turn.
As shown in the figure, also show in Fig. 4:
Starting to report receiving element 44 fiducial time, starting to report Ts fiducial time for receiving, described start to report to be sent by server by utilizing Linux platform NTP synchronous method fiducial time obtain, be specially:
Obtained by server and record the system time Tf of each task node machine, and setting Td time of delay;
Calculate the described Ts=Tf+Td of superposition and send.
For device embodiment, because it is substantially corresponding to embodiment of the method, so describe fairly simple, relevant part illustrates see the part of embodiment of the method.Device embodiment described above is only schematic, the wherein said unit illustrated as separating component or can may not be and physically separates, parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed in multiple network element.Some or all of module wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.Those of ordinary skill in the art, when not paying creative work, are namely appreciated that and implement.
Fig. 5 shows a kind of captions broadcasting system, comprising:
Captions broadcast device shown in Fig. 4, this device can be the upper server 51 of the service end in native system, each Node station is the Node station 52 in distributed display system, the corresponding client of Node station, described Node station can need to arrange some according to practical application, clear in order to what identify, to mark wherein.
For some Node station, the different response receiving captions report request may be distributed to different task node machines and perform, and every platform task node machine under this report task according to described report parameter, sub-captioning unit at the play position information of this task node machine client administration display screen and this task node machine administration display screen in the position reporting display screen, the sub-captioning unit of mating with the play position that this task node machine client described administers display screen is reported.
The client that described Node station is corresponding receives corresponding sub-captioning unit and the wrapper reporting parameter, identify described sub-captioning unit, and reported by the client that Node station is corresponding according to described report parameter, described Node station can by upper server, issue realization as distributed platform server is unified, described Node station is the Node station based on LINUX system; Also can using in some Node station as server, specific implementation form can adjust according to system architecture and communication protocol (can select ICP/IP protocol in the present embodiment), is not limited to wherein a kind of.
The 26S Proteasome Structure and Function of described processing caption data device, with reference to flow process and the diagram of Fig. 1-4, it is no longer repeated.
Fig. 6 shows another captions broadcasting system, comprise: this device can be the server 61 of the service end in native system, and the Node station 62 of task reported in the captions in distributed display system, described server 61 is for there being in the Node station of captions report task.
In sum:
The captions broadcasting method of the embodiment of the present invention, node pusher side by build report associating of the physical coordinates information of captions in administered screen and described second physical coordinates information, captioning synchronization is converted to Node station administer the first physical coordinates synchronizing information of screen in described display screen, and when playing up captions according to appointment rendering speed, multiple Node station is all according to utilizing carry out the fiducial time after cpu system time adjustment when playing up beginning at every turn, ensure that multiple Node station is synchronously played up for the cooperation of report captions, and use frame synchronization without the need to each Node station, each Node station is allowed to use playing up of different frame per second, overcome in prior art and utilize frame synchronizing captioning unit to show the problem of tearing, in addition, broadcasting method in the embodiment of the present invention make use of the captioning unit by consolidation form, the method that sub-captioning unit carries out reporting is cut into according to specifying specification, achieve the technique effect that full word storehouse is reported.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.For device disclosed in embodiment and system, because it corresponds to the method disclosed in Example, so description is fairly simple, relevant part illustrates see method part.
Professional can also recognize further, in conjunction with unit and the algorithm steps of each example of embodiment disclosed herein description, can realize with electronic hardware, computer software or the combination of the two, in order to the interchangeability of hardware and software is clearly described, generally describe composition and the step of each example in the above description according to function.These functions perform with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.Professional and technical personnel can use distinct methods to realize described function to each specifically should being used for, but this realization should not thought and exceeds scope of the present invention.
The software module that the method described in conjunction with embodiment disclosed herein or the step of algorithm can directly use hardware, processor to perform, or the combination of the two is implemented.Software module can be placed in the storage medium of other form any known in random asccess memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technical field.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from the spirit or scope of the embodiment of the present invention, can realize in other embodiments.Therefore, the embodiment of the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a captions broadcasting method, is characterized in that, comprising:
Receive captions and report instruction, described report instruction comprises report caption information;
Obtain captions in display screen and report initial physics coordinate information, be designated as the first physical coordinates information;
And administer the physical coordinates information of screen in described display screen, be designated as the second physical coordinates information;
Associating of the physical coordinates information of described report captions in administered screen and described second physical coordinates information is built according to described first physical coordinates information and described report caption information;
To specify rendering speed successively to described report caption rendering under the instruction of this association, play up the time started is the current C PU system time obtained at every turn.
2. captions broadcasting method as claimed in claim 1, is characterized in that, described report caption information is specially sub-captioning unit and reports parameter, and the generation of described sub-captioning unit comprises:
Carried out texture by server play up according to reporting caption information in Node station, generate the captioning unit possessing preset format;
With report caption information, described captioning unit cutting is generated at least one sub-captioning unit according to the resolution of described Node station;
Described report parameter comprises caption rendering fiducial time and rendering speed.
3. captions broadcasting method as claimed in claim 2, is characterized in that, according to resolution and the report caption information of described Node station, described captioning unit cutting is generated at least one sub-captioning unit concrete
For:
According to the resolution of described Node station and described report caption information, described captioning unit cutting is generated N number of sub-captioning unit to be implemented as:
wherein, described t is the font number in described report caption information; Described T
wfor the set width in described report caption information, described Dw is the resolution laterally value in the resolution of described Node station operational factor.
4. captions broadcasting method as claimed in claim 2, is characterized in that, generates the captioning unit that the captioning unit possessing preset format is implemented as generating pictures form.
5. captions broadcasting method as claimed in claim 1, is characterized in that, also comprise: receive and start to report Ts fiducial time, described start to report to be sent by server by utilizing Linux platform NTP synchronous method fiducial time obtain, be specially:
Obtained by server and record the system time Tf of each task node machine, and setting Td time of delay;
Calculate the described Ts=Tf+Td of superposition and send.
6. a processing caption data device, is characterized in that, comprising:
Report instruction reception unit, report instruction for receiving captions, described report instruction comprises report caption information;
Physical coordinates information acquisition unit, reporting initial physics coordinate information for obtaining captions in display screen, being designated as the first physical coordinates information, obtains the physical coordinates information of Node station administration screen in described display screen, is designated as the second physical coordinates information;
And, build associating of the physical coordinates information of described report captions in administered screen and the second physical coordinates information according to described first physical coordinates information and described report caption information;
Rendering unit, to specify rendering speed successively to described report caption rendering under the instruction of this association, play up the time started is the current C PU system time obtained at every turn.
7. processing unit as claimed in claim 6, is characterized in that, described report caption information is specially sub-captioning unit and reports parameter, and the generation of described sub-captioning unit comprises:
Carried out texture by server play up according to reporting caption information in described Node station, generate the captioning unit possessing preset format;
With report caption information, described captioning unit cutting is generated at least one sub-captioning unit according to the resolution of described Node station, is specially:
According to the resolution of described Node station and described report caption information, described captioning unit cutting is generated N number of sub-captioning unit to be implemented as:
wherein, described t is the font number in described report caption information; Described T
wfor the set width in described report caption information, described Dw is the resolution laterally value in the resolution of described Node station operational factor;
Described report parameter comprises caption rendering fiducial time and rendering speed.
8. processing unit as claimed in claim 6, is characterized in that, start to report receiving element fiducial time, starts to report Ts fiducial time for receiving, described start to report to be sent by server by utilizing Linux platform NTP synchronous method fiducial time obtain, be specially:
Obtained by server and record the system time Tf of each task node machine, and setting Td time of delay;
Calculate the described Ts=Tf+Td of superposition and send.
9. a captions broadcasting system, is characterized in that, comprising: the processing caption data device described in any one of claim 6-8 and upper server.
10. a captions broadcasting system, is characterized in that, comprising: the processing caption data device described in any one of claim 6-8 and server, and described server is have in the Node station of captions report task.
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| CN102932607B (en) * | 2012-10-29 | 2015-05-20 | 北京东方艾迪普科技发展有限公司 | Caption graphics and text information generation method and device |
| CN108366182B (en) * | 2018-02-13 | 2020-07-07 | 京东方科技集团股份有限公司 | Calibration method and device for synchronous broadcast of text voice and computer storage medium |
| CN112486438A (en) * | 2019-09-12 | 2021-03-12 | 杭州海康威视数字技术股份有限公司 | OSD (on-screen display) cross-screen scrolling display method and device and display output equipment |
| CN112689188B (en) * | 2020-12-21 | 2022-06-21 | 威创集团股份有限公司 | Large-screen rolling caption display method, device, terminal and storage medium |
| CN115914770A (en) * | 2022-12-22 | 2023-04-04 | 广州市保伦电子有限公司 | Synchronous display method, device and system for distributed multi-device rolling captions |
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| CN100414976C (en) * | 2004-01-12 | 2008-08-27 | 松下电器产业株式会社 | Caption treating device |
| US20060062552A1 (en) * | 2004-09-23 | 2006-03-23 | Richard Lesser | System and method of adapting sub-picture data for being displayed on mini-screens |
| CN101238719B (en) * | 2005-08-05 | 2012-05-30 | 三星电子株式会社 | Apparatus for providing multiple screens and method of dynamically configuring multiple screens |
| CN101552877B (en) * | 2008-04-03 | 2013-06-05 | 技嘉科技股份有限公司 | Method for painting subtitle by using pixel as unit |
| CN101309259B (en) * | 2008-06-24 | 2012-07-11 | 广东威创视讯科技股份有限公司 | Distributed image display method |
| CN101668132A (en) * | 2008-09-02 | 2010-03-10 | 华为技术有限公司 | Method and system for matching and processing captions |
| CN101650959B (en) * | 2009-09-07 | 2012-10-17 | 中国科学院声学研究所 | Layering framework for multimedia synchronous broadcast and control relationship |
| CN102065234B (en) * | 2009-11-12 | 2014-11-05 | 新奥特（北京）视频技术有限公司 | Caption producing and broadcasting method and system based on distributive type caption processing system |
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