CN100530398C - Method and broadcast apparatus for displaying multi caption using auxiliary picture surface processing method - Google Patents
Method and broadcast apparatus for displaying multi caption using auxiliary picture surface processing method Download PDFInfo
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- CN100530398C CN100530398C CNB2005100635246A CN200510063524A CN100530398C CN 100530398 C CN100530398 C CN 100530398C CN B2005100635246 A CNB2005100635246 A CN B2005100635246A CN 200510063524 A CN200510063524 A CN 200510063524A CN 100530398 C CN100530398 C CN 100530398C
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Abstract
The invention relates to a mechanism which can display diversified titles with assistant-display handling method in laser video disc announcement unit. The mechanism can simultaneously display diversified titles under the control of the users. The invention uses peculiar control steps, bases on time-sharing and multitasking concepts, and only adopts single assistant-display code element and single composition element, which can display diversified titles on the arbitrary position of the dominating display.
Description
Technical field
The invention relates to that the disposal route of utilizing secondary picture shows the playing device of multiple captions, and particularly relevant for a kind of method that shows multiple captions of DVD discs video-audio playing device.
Background technology
Since discs have storage volume big, preserve easily, storage life limit for length, the advantage such as infringement that is difficult for data with low cost, the therefore general traditional magnetic Storage Media (magnetic storage medium) and become one of indispensable optical storage media of modern (optical storage medium) of replacement gradually at present.At present common diversified digital light disc (Digital Versatile Disk, DVD) in the application of audio-visual broadcast, utilize its huge storage volume just, the captions of a large amount of different languages are included in wherein, at user's following in the suitable operation of control interface, can reach the captions that show multiple different language simultaneously.
During the multi-lingual DVD of audio-visual now broadcast, on the captions that show multiple different language, all carry out the decoding of multilingual captions with many groups of secondary picture decoding units, because this known technology is simultaneously when playing two kinds of captions, need to decipher by two groups of secondary picture decoding units simultaneously, then need three groups of secondary picture decoding units to decipher during three kinds of captions, analogize at this point, if desire increases the captions kind time-like of putting of dialling, just need to increase the quantity of secondary picture decoding unit, so not only increase cost of manufacture, and must make many extra corrections, to reach the function of expection original secondary film composition unit.
Fig. 1 shows the process flow diagram of known DVD player when playing multinational captions.At first, in step 100, seek hardware one secondary film composition memory district is provided, it judges whether first group of secondary picture of activation inferior to step 102.If first group of secondary picture of not activation, this secondary picture processing procedure constipation bundle then, if this first group secondary picture of activation arranged, then in step 104, from Storage Media ask for corresponding to the secondary picture steering order of first group of secondary picture and secondary picture image data in case in step 106 to this first group secondary picture in first group of secondary picture unit, decipher.Adjust first group of secondary picture in step 108, in step 110 first group of secondary picture integrating to secondary film composition remembered the district again, just enter second group of secondary picture handling procedure subsequently.Judge whether second group of secondary picture of activation in step 112.If second group of secondary picture of not activation, this secondary picture processing procedure constipation bundle then, if this second group secondary picture of activation arranged, then in step 114, from Storage Media ask for corresponding to the secondary picture steering order of second group of secondary picture and secondary picture image data in case in step 116 to this second group secondary picture in second group of secondary picture unit, decipher.Adjust second group of secondary picture in step 118, in step 120 second group of secondary picture integrating to secondary film composition memory is distinguished again, at last again in step 122, whole secondary film composition is integrated into key frame composition unit, if in this way under the situation of two groups of secondary pictures of activation only, this secondary picture treatment step constipation bundle.
By said procedure as can be known, if when desiring the secondary picture of more groups of activations, except the secondary picture decoding unit quantity of required increase, related additional step is also very considerable, therefore the road that will seek to solve in the middle of the present invention.
Summary of the invention
The objective of the invention is is providing a kind of disposal route of secondary picture, can utilize the controlled step of TCM, shows multiple captions picture.
Another object of the present invention is that a kind of playing device that shows multiple captions is being provided, and can need to use simultaneously the secondary picture decoding units of many groups to reach repeatedly composition, the work that just is accomplished with in single secondary picture decoding unit and the single composition realization known technology.
The invention provides a kind of disposal route of secondary picture, be applicable to a video-audio playing device, this video-audio playing device reads audiovisual materials, and these audiovisual materials comprise that N organizes the data of secondary picture, each data of organizing secondary picture comprises a secondary picture control image data, each is organized secondary picture control image data and also comprises a secondary picture steering order and a secondary picture image data, and the disposal route of this secondary picture is able to that the following step implements.At first, when M organizes secondary picture activation, judge whether present display position equals M in the information of vertical direction and organize the information of secondary picture predetermined display positions in vertical direction.Secondly, under sure situation, requiring to organize the secondary picture steering order of secondary picture and secondary picture image data coding corresponding to M should pair picture image data, therefore can obtain a secondary picture image signal and with its output.At last, repeat above-mentioned steps again, to the picture bottom, wherein M, N are natural number, and M＜=N up to this present display position.
The present invention provides a kind of disposal route of secondary picture in addition, be applicable to a video-audio playing device, this video-audio playing device reads audiovisual materials, and these audiovisual materials comprise that N organizes the data of secondary picture, each data of organizing secondary picture comprises a secondary picture control image data, each is organized secondary picture control image data and also comprises a secondary picture steering order and a secondary picture image data, and the disposal route of this secondary picture is able to that the following step implements.At first, when M organized secondary picture activation, requiring to organize the secondary picture steering order of secondary picture and secondary picture image data coding corresponding to M should pair picture image data and store in advance.Secondly, when a present display position when the information of vertical direction equals M and organizes the information of secondary picture predetermined display positions in vertical direction, the secondary picture image data of having deciphered that stores is in advance exported with a secondary picture image signal.At last, repeat above-mentioned steps again, to the picture bottom, wherein M, N are natural number, and M＜=N up to this present display position.
According to preferred embodiment of the present invention, the disposal route of above-mentioned two kinds of secondary pictures, wherein the M secondary picture steering order of organizing secondary picture comprises in order to provide M to organize secondary picture and originally desired display position in the original vertical display position information of the information of vertical direction and in order to provide M to organize the virtual vertical display position information of secondary picture predetermined display positions in the information of vertical direction.
According to another kind of preferred embodiment of the present invention, the disposal route of above-mentioned two kinds of secondary pictures, wherein the M secondary picture steering order of organizing secondary picture comprises that one upgrades vertical display position information, be directly to change and get, organize the information of secondary picture predetermined display positions in vertical direction in order to M to be provided by the original vertical display position information of correspondence.
The present invention provides a kind of playing device that shows multiple captions again, and it comprises separates multiplexer, key frame decoding unit, secondary picture main control unit, secondary picture decoding unit and composition unit.Separating multiplexer can be divided into audiovisual materials one key frame image data and N and organize secondary picture control image data.The key frame decoding unit key frame image data can be deciphered a key frame signal of video signal.Secondary picture main control unit can be organized each secondary picture control image data and be further divided into a secondary picture steering order and a secondary picture image data.Secondary picture decoding unit can produce secondary picture control signal according to the secondary picture steering order that M organizes secondary picture, the secondary picture image data of again M being organized secondary picture secondary picture control signal with the TCM mode handle following, decoding produces secondary picture image signal.Caption information that the composition unit can be comprised secondary picture image signal and key frame signal of video signal synthesize a digitized video output signal, and wherein M, N are natural number, and M＜=N.
According to preferred embodiment of the present invention, wherein should comprise instruction buffer, control module, data buffer and diffusing dot element by pair picture decoding unit.Instruction buffer is in order to receive secondary picture steering order, again through buffered to produce a plurality of steering orders.Control module produces corresponding secondary picture control signal and diffusing point control signal according to the steering order that is received.The data impact damper is in order to receiving secondary picture control signal and to control the secondary picture image data of institute's buffered, and then produces secondary picture color signal.Loose dot element in order to receiving loose point control signal and secondary picture color signal, and regulate and control secondary picture color signal, and then produce secondary picture image signal with diffusing point control signal.
According to preferred embodiment of the present invention, wherein the mode of TCM is according to implementing with the following step.At first, when M organizes secondary picture activation, judge whether present display position equals M in the information of vertical direction and organize the information of secondary picture predetermined display positions in vertical direction.Secondly, under sure situation, requirement also requires to organize corresponding to M the secondary picture image data input data impact damper of secondary picture corresponding to secondary picture steering order input instruction impact damper and this control module that M organizes secondary picture, and deciphers that secondary picture image data gets a secondary picture image signal and with its output.At last, repeat above-mentioned steps again, up to this present display position to the picture bottom.
According to preferred embodiment of the present invention, wherein secondary picture decoding unit also comprises a random access memory.Then wherein the TCM mode according to implementing with the following step.At first, when M organizes secondary picture activation, require to import the secondary picture image data input data impact damper that this instruction buffer and this control module also require to organize corresponding to M secondary picture corresponding to the secondary picture steering order that M organizes secondary picture.Secondly, judge present display position is when whether the information of vertical direction equals M and organize the information of secondary picture predetermined display positions in vertical direction.If under sure situation, just will be stored in advance with the secondary picture image data of having deciphered in the access memory and it be exported with a secondary picture image signal.At last, repeat above-mentioned steps again, up to this present display position to the picture bottom.
According to preferred embodiment of the present invention, this secondary picture steering order that can show that the M of the playing device of multiple captions organizes secondary picture comprises in order to provide M to organize secondary picture originally desired display position in the original vertical display position information of the information of vertical direction and in order to provide M to organize the virtual vertical display position information of secondary picture predetermined display positions in the information of vertical direction.
According to another kind of preferred embodiment of the present invention, this secondary picture steering order that can show that the M of the playing device of multiple captions organizes secondary picture comprises that one upgrades vertical display position information, be directly to change and get, organize the information of secondary picture predetermined display positions in vertical direction in order to M to be provided by the original vertical display position information of correspondence.
The present invention is because utilize distinctive controlled step, based on the notion of TCM, thus only used single secondary picture decoding unit and single composition unit, and reach the function that shows multiple different language captions in the optional position of key frame.
For above and other objects of the present invention, feature and advantage can be become apparent, preferred embodiment cited below particularly, and cooperate appended graphicly, elaborate.
Description of drawings
Fig. 1 shows the process flow diagram of known DVD player when playing multinational captions;
Fig. 2 is the summary calcspar that shows the video signal playing device;
Fig. 3 A is a preferred embodiment of the secondary picture decoding unit in the displayed map 2;
Fig. 3 B is another preferred embodiment of the secondary picture decoding unit in the displayed map 2;
Fig. 3 C is the another preferred embodiment of the secondary picture decoding unit in the displayed map 2;
Fig. 4 A is the preferred embodiment that shows a kind of auxiliary picture surface processing method;
Fig. 4 B is another preferred embodiment that shows a kind of auxiliary picture surface processing method.
Embodiment
The preferable feature of embodiment chosen of the present invention will explain with reference to graphic.Spirit of the present invention and scope are not limited to these embodiment of selected usefulness as an illustration.It should be noted that these graphicly should not be considered as any specific size or ratio.In scope of the present invention, hereinafter described any structure and material all can suitably be changed.
Fig. 2 is the summary calcspar of video signal playing device, is the treatment mechanism of the secondary picture of DVD discs of exemplary embodiments of the present invention shown in the figure.
With reference to shown in Figure 2, its flow process square comprises user's interface 200, control module 202, DVD discs 204, main control unit 206, separates multiplexer 208, key frame decoding unit 210, secondary picture main control unit 212, secondary picture decoding unit 214, composition unit 216, display unit 218, message decoding unit 220, message processing unit 222 and message output unit 224.
User's interface 200 impels control module 202 output one Play Control signal with an action command, and main control unit 206 just according to this Play Control signal, reads audiovisual materials from DVD discs 204, and these audiovisual materials are sent to separate multitask 208 and deal with.Separate multiplexer 208 audiovisual materials are divided into key frame image data, secondary picture control image data and audio data, so that make follow-up sound processing.
The key frame image data after key frame decoding unit 210 decoding, winner's picture image signal.
Secondary picture control image data is further divided into secondary picture steering order Cs and secondary picture image data Dv by secondary picture main control unit 212.In secondary picture decoding unit 214, the secondary picture steering order Cs of input can produce secondary picture control signal, so that with the mode of secondary picture image data Dv with TCM, decoding produces a secondary picture image signal under the situation of only utilizing one group of secondary picture decoding unit 214.The mode of this TCM can be improved in the known technology shortcoming that needs the secondary picture decoding unit running of many groups but realize with single secondary picture decoding unit.
Secondary picture image signal has comprised multiple caption information, after secondary picture decoding unit 214 is delivered to composition unit 216, with the key frame signal of video signal composition formation digitized video output signal of key frame decoding unit 210 decoding gained.This digitized video output signal converts the digital simulation output image signal to for the display video picture through display unit 218.
Audio data is sent the message analog signal that can listen to via message decoding unit 220, message processing unit 222 and message output unit 224.
Shown in Fig. 3 A, the secondary picture main control unit 212 of Fig. 2 filters control and the image information of each group from secondary picture control image data, and cooperate each to organize secondary picture secondary picture steering order Cs and secondary picture image data Dv are provided, and secondary picture steering order Cs has wherein comprised the original vertical display position information S1 and virtual (pseudo) vertical display position information S2 of secondary picture again in Shu preferred embodiment of the present invention.
As shown in Figure 3A, the secondary picture decoding unit 214 among Fig. 2 comprises instruction buffer 301, control module 302, data buffer 303, the table of comparisons 304, colour disk 305, some parameter storage element 306 and diffusing dot element 307 loose.
Secondary picture main control unit instruction buffer 301 receives original vertical display position information S1 and virtual vertical display position information S2, and the virtual vertical display position information S2 that is read by control module 302 and incite somebody to action wherein treats as the information of actual displayed position in vertical direction in the information of vertical direction.This control module 302 is in order to resolving secondary picture steering order Cs, can produce a secondary picture control signal Sc, and the data stream in the secondary picture decoding unit 214 are controlled.
Data impact damper 303 is in order to store the secondary picture image data Dv before decompressing, controlled by a secondary picture control signal Sc, the secondary picture image data Dv that will not decompress through the table of comparisons 304, to the secondary picture image data type of breaking forth after decompressing, the color index that is produced (color index) can be read the secondary picture color of desire output by the color information that colour disk 305 stores.
The point parameter of loosing storage element 306 is to be used to store various adjustment parameters, so that adjust size or the brightness of respectively organizing secondary picture.The controlling signal that 307 receptions of dot element of loosing are controlled from color information and 302 pairs of data streams of control module of colour disk 305, and then adjust the size of respectively organizing secondary picture, produce secondary picture image signal.
Shown in Fig. 3 B, in another preferred embodiment of the present invention, secondary picture steering order Cs has wherein comprised the vertical display position information of the renewal S3 of secondary picture again, it is directly changed and is got by an original vertical display position information S1, in order to the information of this pair picture actual displayed position in vertical direction to be provided.
Shown in Fig. 3 B, the secondary picture decoding unit 214 among Fig. 2 comprises instruction buffer 311, control module 312, data buffer 313, the table of comparisons 314, colour disk 315, some parameter storage element 316 and diffusing dot element 317 loose.
Secondary picture main control unit instruction buffer 311 receives and upgrades vertical display position information S3, read by control module 312 again and the vertical display position information of renewal S3 that will be wherein in the information of vertical direction as the information of actual displayed position in vertical direction.This control module 312 is in order to resolving secondary picture steering order Cs, can produce a secondary picture control signal Sc, and the data stream in the secondary picture decoding unit 214 are controlled.
Data impact damper 313 is in order to store the secondary picture image data Dv before decompressing, controlled by a secondary picture control signal Sc, the secondary picture image data Dv that will not decompress through the table of comparisons 314, to the secondary picture image data type of breaking forth after decompressing, the color index that is produced can be read the secondary picture color of desire output by the color information that colour disk 315 stores.
The point parameter of loosing storage element 316 is to be used to store various adjustment parameters, so that adjust size or the brightness of respectively organizing secondary picture.The controlling signal that 317 receptions of dot element of loosing are controlled from color information and 312 pairs of data streams of control module of colour disk 315, and then adjust the size of respectively organizing secondary picture, produce secondary picture image signal.
Shown in Fig. 3 C, in another preferred embodiment of the present invention, secondary picture steering order Cs has wherein comprised the display position information S4 of secondary picture again, its can by extra virtual vertical display position information S2 or directly change and the vertical display position information of renewal S3 both one of them substituted, in order to the information of this pair picture actual displayed position in vertical direction to be provided.
Shown in Fig. 3 C, the secondary picture decoding unit 214 among Fig. 2 comprises instruction buffer 321, control module 322, data buffer 323, the table of comparisons 324, colour disk 325, the some parameter of loosing storage element 326, dot element 327 and random access memory 328 loose.
Secondary picture main control unit instruction buffer 321 receives display position information S4, and the display position information S4 that is read by control module 322 and incite somebody to action wherein treats as the information of actual displayed position in vertical direction in the information of vertical direction.This control module 322 is in order to resolving secondary picture steering order Cs, can produce a secondary picture control signal Sc, and the data stream in the secondary picture decoding unit 214 are controlled.
Data impact damper 323 is in order to store the secondary picture image data Dv before decompressing, controlled by a secondary picture control signal Sc, the secondary picture image data Dv that will not decompress through the table of comparisons 324, to the secondary picture image data type of breaking forth after decompressing, the color index that is produced can be read the secondary picture color of desire output by the color information that colour disk 325 stores, this pair picture color the secondary picture that will show will be stored in the random access memory 328, and by control module 322 its access facilities of control.
The point parameter of loosing storage element 326 is to be used to store various adjustment parameters, so that adjust size or the brightness of respectively organizing secondary picture.The controlling signal that 327 receptions of dot element of loosing are controlled from 322 pairs of data streams of control module also obtains from random access memory 328 and to decipher secondary picture data and to adjust the size of respectively organizing secondary picture, to produce secondary picture image signal.This embodiment carries out pre-decode (pre-decode) and writes back random access memory 328, and the method for the aforementioned two kinds of embodiment that arrange in pairs or groups, put positional information S2 according to virtual vertical group or upgrade vertical dialling by control module 321 and put positional information S3, secondary picture image signal is read, be directly inputted to the composition unit.
Above-mentioned all embodiment realize utilizing single secondary picture code translator and single composition unit simultaneously more than one secondary picture to be carried out further signal of video signal with TCM to handle, and it carries out, and step and program will be in detailed description hereinafter.
Fig. 4 A is the preferred embodiment that shows a kind of auxiliary picture surface processing method of the present invention, is applicable to video-audio playing device.This video-audio playing device can read audiovisual materials, and these audiovisual materials comprise that N organizes the data of secondary picture, and each data of organizing secondary picture comprises a secondary picture control image data, in addition, each secondary picture control image data then comprises a secondary picture steering order Cs and a secondary picture image data Dv, and the flow chart step of this auxiliary picture surface processing method is as described below.
At first, judge that in step 402 whether M organizes the activation of secondary picture.If not, then come back to previous step, organize the whether activation of secondary picture to judge another, if, then enter next step 404, judge whether present display position equals M in the information of vertical direction and organize the information of secondary picture predetermined display positions in vertical direction, and this predetermined display positions information S4 can be virtual vertical display position information S2 mentioned above or upgrade vertical display position information S3.If not, it is rapid then to return previous step, judge whether present display position equals another in the information of vertical direction and organize the information of secondary picture predetermined display positions in vertical direction, if then ask for secondary picture steering order Cs and the secondary picture image data Dv that organizes secondary picture corresponding to M in step 406.Secondly,, decipher secondary picture image data Dv, and the secondary picture image signal of gained is exported in step 408.Repeat above-mentioned steps, and judge whether reach picture bottom 410, last if arrive the picture bottom, then this secondary picture just processing finish, if no show picture bottom still then comes back to step 402, next organizes secondary picture to determine whether activation.
Wherein M, N are natural number, and M＜=N.
Following in conjunction with secondary picture decoding unit, this embodiment auxiliary picture surface processing method is as described below.When M organizes secondary picture activation, judge then whether present display position equals M in the information of vertical direction and organize the information of secondary picture predetermined display positions in vertical direction, ask for secondary picture steering order Cs input instruction impact damper, the control module of organizing secondary picture corresponding to M subsequently and require to organize the secondary picture image data Dv input data impact damper of secondary picture, and decipher secondary picture image data Dv so that obtain secondary picture image signal and with its output corresponding to M.Repeat above-mentioned steps, up to present display position to the picture bottom.
Fig. 4 B is another preferred embodiment that shows a kind of auxiliary picture surface processing method of the present invention, also is applicable to video-audio playing device.Used the mode that stores in advance with maximum different being in of Fig. 4 A, the data storage after the decoding in random access memory, is treated again it to be read use afterwards in it.The audiovisual materials that this video-audio playing device read comprise that N organizes the data of secondary picture, each data of organizing secondary picture comprises a secondary picture control image data, in addition, each secondary picture control image data then comprises a secondary picture steering order Cs and a secondary picture image data Dv, and the flow chart step of this auxiliary picture surface processing method is as described below.
At first, judge that in step 412 whether M organizes the activation of secondary picture.If not, then come back to previous step, organize the whether activation of secondary picture to judge another, if, then enter next step 414, ask for the secondary picture steering order Cs and the secondary picture image data Dv that organize secondary picture corresponding to M.Secondly, the secondary picture data that to decipher in step 416 is stored in the random access memory in advance, enter step 418 subsequently, judge whether present display position equals M in the information of vertical direction and organize the information of secondary picture predetermined display positions in vertical direction, and this predetermined display positions information S4 can be virtual vertical display position information S2 mentioned above or upgrade vertical display position information S3.If not, it is rapid then to return previous step, judge whether present display position equals another in the information of vertical direction and organize the information of secondary picture predetermined display positions in vertical direction, if, then the secondary picture image data Dv that has deciphered in random access memory in step 420 reads, and exports secondary picture image signal.Repeat above-mentioned steps, and judge whether reach picture bottom 422, last if arrive the picture bottom, then this secondary picture just processing finish, if no show picture bottom still then comes back to step 412, next organizes secondary picture to determine whether activation.
Wherein M, N are natural number, and M＜=N.
Following in conjunction with secondary picture decoding unit, this embodiment auxiliary picture surface processing method is as described below.When M organizes secondary picture activation, then ask for the secondary picture image data Dv input data impact damper that secondary picture steering order Cs input instruction impact damper, the control module of organizing secondary picture corresponding to M require to organize corresponding to M secondary picture, judge subsequently whether present display position equals M in the information of vertical direction and organize the information of secondary picture predetermined display positions in vertical direction, will be stored in advance again with the secondary picture image data Dv that has deciphered in the access memory with a secondary picture image signal output.Repeat above-mentioned steps, up to this present display position to the picture bottom.
By the above embodiments as can be known,, not only need not carry out any modification, also needn't increase the number of decoding unit the composition unit if will increase the secondary number of pictures of being supported.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limiting the present invention, anyly has the knack of this skill person, without departing from the spirit and scope of the present invention; when can doing a little change and retouching, so protection scope of the present invention is as the criterion when looking the accompanying Claim person of defining.
Claims (15)
1. the disposal route of a secondary picture, be applicable to a video-audio playing device, this video-audio playing device reads audiovisual materials, these audiovisual materials comprise that N organizes the data of secondary picture, each data of organizing secondary picture comprises a secondary picture control image data, each those secondary picture control image data comprises a secondary picture steering order and a secondary picture image data, and the disposal route of this pair picture comprises the following steps:
When M organizes secondary picture activation, then:
When a present display position when the information of vertical direction equals M and organizes the information of secondary picture predetermined display positions in vertical direction;
This pair picture steering order and this pair picture image data of secondary picture organized in requirement corresponding to this M; And
Decipher this pair picture image data, get a secondary picture image signal and output; And
Repeat above-mentioned steps, up to this present display position to the picture bottom,
Wherein M, N are natural number, and M＜=N.
2. the disposal route of secondary picture as claimed in claim 1, this pair picture steering order that wherein said M organizes secondary picture comprises:
One original vertical display position information was originally desired the information of display position in vertical direction in order to provide described M to organize secondary picture; And
One virtual vertical display position information is organized the information of secondary picture predetermined display positions in vertical direction in order to described M to be provided.
3. the disposal route of secondary picture as claimed in claim 1, the described secondary picture steering order that wherein said M organizes secondary picture comprises that one upgrades vertical display position information, be directly to change and get, organize the information of secondary picture predetermined display positions in vertical direction in order to this M to be provided by an original vertical display position information of correspondence.
4. the disposal route of a secondary picture, be applicable to a video-audio playing device, this video-audio playing device reads audiovisual materials, these audiovisual materials comprise that N organizes the data of secondary picture, each data of organizing secondary picture comprises a secondary picture control image data, each those secondary picture control image data comprises a secondary picture steering order and a secondary picture image data, and the disposal route of this pair picture comprises the following steps:
When M organizes secondary picture activation, then:
This pair picture steering order and this pair picture image data of secondary picture organized in requirement corresponding to this M;
Decipher this pair picture image data and storage in advance;
When a present display position when the information of vertical direction equals M and organizes the information of secondary picture predetermined display positions in vertical direction; And
This pair picture image data deciphered that stores is in advance exported with a secondary picture image signal; And
Repeat above-mentioned steps, up to this present display position to the picture bottom,
Wherein M, N are natural number, and M＜=N.
5. the disposal route of secondary picture as claimed in claim 4, the described secondary picture steering order that wherein said M organizes secondary picture comprises:
One original vertical display position information was originally desired the information of display position in vertical direction in order to provide described M to organize secondary picture; And
One virtual vertical display position information is organized the information of secondary picture predetermined display positions in vertical direction in order to described M to be provided.
6. the disposal route of secondary picture as claimed in claim 4, the described secondary picture steering order that wherein said M organizes secondary picture comprises that one upgrades vertical display position information, be directly to change and get, organize the information of secondary picture predetermined display positions in vertical direction in order to described M to be provided by an original vertical display position information of correspondence.
7. playing device that can show multiple captions comprises:
One separates multiplexer, audiovisual materials is divided into a key frame image data and N organizes secondary picture control image data;
One key frame decoding unit, with described key frame image data through decipher a key frame signal of video signal;
One secondary picture main control unit is further divided into a secondary picture steering order and a secondary picture image data with each described secondary picture control image data;
One secondary picture decoding unit, this pair picture steering order of organizing secondary picture according to M produces a secondary picture control signal, this pair picture image data of again M being organized secondary picture is under this pair picture control signal is handled in a TCM mode, and decoding produces a secondary picture image signal; And
One composition unit, the caption information with this pair picture image signal is comprised synthesizes a digitized video output signal with this key frame signal of video signal,
Wherein M, N are natural number, and M＜=N.
8. the playing device that shows multiple captions as claimed in claim 7, wherein said secondary picture decoding unit comprises:
One instruction buffer receives described these secondary picture steering orders, again through buffered to produce most steering orders;
One control module produces this a corresponding pair picture control signal and a diffusing point control signal according to described these steering orders that received;
One data impact damper receives described secondary picture control signal described these secondary picture image data in order to control institute buffered, and then produces a secondary picture color signal; And
One diffusing dot element receives described diffusing point control signal and described secondary picture color signal, and regulates and control described secondary picture color signal with described diffusing point control signal, and then produces described secondary picture image signal.
9. the playing device that shows multiple captions as claimed in claim 8, wherein said TCM mode comprises the following steps:
When M organizes secondary picture activation, then:
When a present display position when the information of vertical direction equals M and organizes the information of secondary picture predetermined display positions in vertical direction;
Requirement is imported this instruction buffer corresponding to this pair picture steering order that this M organizes secondary picture;
This control module requires to organize corresponding to this M this this data impact damper of pair picture image data input of secondary picture; And
Decipher this pair picture image data and get a secondary picture image signal and output; And
Repeat above-mentioned steps, up to this present display position to the picture bottom.
10. the described secondary picture steering order that the playing device that shows multiple captions as claimed in claim 9, wherein said M are organized secondary picture comprises:
One original vertical display position information was originally desired the information of display position in vertical direction in order to provide described M to organize secondary picture; And
One virtual vertical display position information is organized the information of secondary picture predetermined display positions in vertical direction in order to described M to be provided.
11. the playing device that shows multiple captions as claimed in claim 9, the described secondary picture steering order that wherein said M organizes secondary picture comprises that one upgrades vertical display position information, be directly to change and get, organize the information of secondary picture predetermined display positions in vertical direction in order to described M to be provided by an original vertical display position information of correspondence.
12. the playing device that shows multiple captions as claimed in claim 8 wherein should also comprise a random access memory by pair picture decoding unit.
13. the playing device that shows multiple captions as claimed in claim 12, wherein said TCM mode comprises the following steps:
When M organizes secondary picture activation, then:
Requirement is imported this instruction buffer corresponding to the described secondary picture steering order that described M organizes secondary picture;
Described control module requires to organize corresponding to described M this this data impact damper of pair picture image data input of secondary picture;
When a present display position when the information of vertical direction equals M and organizes the information of secondary picture predetermined display positions in vertical direction; And
Export with a secondary picture image signal with this pair picture image data deciphered in the access memory being stored in this in advance; And
Repeat above-mentioned steps, up to this present display position to the picture bottom.
14. organizing the described secondary picture steering order of secondary picture, the playing device that shows multiple captions as claimed in claim 13, wherein said M comprise:
One original vertical display position information was originally desired the information of display position in vertical direction in order to provide described M to organize secondary picture; And
One virtual vertical display position information is organized the information of secondary picture predetermined display positions in vertical direction in order to described M to be provided.
15. the playing device that shows multiple captions as claimed in claim 13, the described secondary picture steering order that wherein said M organizes secondary picture comprises that one upgrades vertical display position information, be directly to change and get, organize the information of secondary picture predetermined display positions in vertical direction in order to described M to be provided by an original vertical display position information of correspondence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100635246A CN100530398C (en) | 2005-04-08 | 2005-04-08 | Method and broadcast apparatus for displaying multi caption using auxiliary picture surface processing method |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005100635246A CN100530398C (en) | 2005-04-08 | 2005-04-08 | Method and broadcast apparatus for displaying multi caption using auxiliary picture surface processing method |
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| CN1845247A CN1845247A (en) | 2006-10-11 |
| CN100530398C true CN100530398C (en) | 2009-08-19 |
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| CN1845247A (en) | 2006-10-11 |
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