CN102263930B - Method and device for broadcasting multiple pictures in video conference - Google Patents
Method and device for broadcasting multiple pictures in video conference Download PDFInfo
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Abstract
The invention provides a method and a device for broadcasting multiple pictures in a video conference. A storage space is arranged for a multi-point control unit (MCU) so as to store the set multi-picture setting information, so that, after entering a multi-picture setting mode, the MCU can set the pictures according to the multi-picture setting information finally entering the storage space when the multi-picture setting information exists in the storage space; if the MCU receives instructions containing split screen mode information, the MCU sets a split screen mode according to the split screen mode information, and when the multi-picture setting information corresponding to the split screen mode exists in the storage space, the MCU sets a conference site of each picture according to the multi-picture setting information which finally enters the storage space and corresponds to the split screen mode. With the method and the device, the multiple pictures can be set more simply and quickly while being broadcasted.
Description
Technical field
The present invention relates to video conferencing technology, particularly a kind of method and apparatus of broadcasting multiple pictures in video conference.
Background technology
Video conferencing system realizes virtual meeting by the network communications technology, makes the user who disperses on geographical position can pass through the mode exchange of information such as image, sound, carries out collaborative work.Space length has been shortened in video conference to the full extent, has facilitated between cooperation member in real time, has exchanged intuitively.Such conference model has obtained more and more general application.
Generally, this meeting is carried out according to predefined flow process, all watches the image in a certain specific meeting-place in all meeting-place of synchronization, listens to the sound in this meeting-place.The flow process of whole meeting is passed through the multipoint control unit as video conference nucleus equipment (MCU) to control by administrative staff or Chair site, maybe needs to switch different meeting-place broadcast in meeting according to agenda.Wherein, the control of being undertaken by MCU keeper is called director's pattern, and the control of being undertaken by Chair site is called chairman's pattern.
For further convenient interchange, in video conference at present, MCU adopts the mode of the many pictures of broadcast, i.e. span mode more.When many pictures are arranged, first enter split screen pattern is set; Then concrete span mode is set, selects single-image, 2 pictures, 4 pictures, 9 pictures, 16 picture isotypes, as shown in Figure 1; Each sprite being arranged can field information again, for example, for being designated 0 sprite, meeting-place 1 is set, and is designated 1 sprite meeting-place 2 etc. is set; After setting completes, MCU goes out multi-image broadcast.
In prior art, if broadcast again single-image after setting up many pictures, the setting of so much picture will be lost, then while carrying out the broadcast of many pictures, needs again MCU to re-start the setting of many pictures, realizes very trouble, and consuming time longer.
Summary of the invention
In view of this, the invention provides a kind of method and apparatus of broadcasting multiple pictures in video conference, make when many pictures of broadcast, the setting of many pictures is more simple, quick.
A method for broadcasting multiple pictures in video conference, the method comprises:
A, multipoint control unit MCU receive and enter many pictures and arrange after the instruction of pattern, entering many pictures arranges pattern and judges in memory space, whether there is many pictures configuration information, if, according to the many pictures configuration information that finally enters memory space in described memory space, many pictures are set, execution step B; If not, directly perform step B;
If the described MCU of B receives the instruction that comprises span mode information, the span mode of many pictures is set, execution step C according to described span mode information; Otherwise, directly perform step E;
C, judge in the memory space of MCU whether comprise many pictures configuration information corresponding to described span mode information; If so, the meeting field information of each sprite is set according to the many pictures configuration information that finally enters memory space in many pictures configuration information corresponding to described span mode information, execution step D; Otherwise, directly perform step D;
If D MCU receives the instruction that comprises sprite configuration information, the meeting field information of corresponding sprite in many pictures is set according to described sprite configuration information, until each sprite setting completed, execution step E; Otherwise, directly perform step E;
E, described MCU receive after the instruction of the many pictures of broadcast, and the many pictures that set are broadcasted and according to current, arranging of many pictures stored to many pictures configuration information to memory space;
Wherein, described many pictures configuration information comprises: the meeting field information of span mode information and each sprite.
A device for broadcasting multiple pictures in video conference, this device is arranged in MCU, and this device comprises: command reception unit, set handling unit, the first judging unit, the second judging unit, image broadcast unit, storage processing unit and memory space;
Described command reception unit, for receiving instruction;
Described set handling unit, enters many pictures and arranges after the instruction of pattern for receiving in described command reception unit, enters many pictures pattern is set, and send judgement notice to described the first judging unit; When judgment result is that of described the first judging unit is, according to the many pictures configuration information that finally enters memory space in described memory space, many pictures are set; If described command reception unit receives the instruction that comprises span mode information, the span mode of many pictures is set according to described span mode information, and sends judgement notice to described the second judging unit; When judgment result is that of described the second judging unit is, the meeting field information of each sprite is set according to the many pictures configuration information that finally enters memory space in many pictures configuration information corresponding to described span mode information; If described command reception unit receives the instruction that comprises sprite configuration information, the meeting field information of corresponding sprite in many pictures is set according to described sprite configuration information, until each sprite setting completed;
Described the first judging unit, for receiving after judgement notice, judges in described memory space, whether there is many pictures configuration information;
Described the second judging unit, for receiving after judgement notice, judges in described memory space, whether to comprise many pictures configuration information corresponding to described span mode information;
Described image broadcast unit, for receiving in described command reception unit after the instruction of the many pictures of broadcast, broadcasts the many pictures that set;
Described storage processing unit, for receiving in described command reception unit after the instruction of the many pictures of broadcast, stores many pictures configuration information to memory space according to current to arranging of many pictures;
Described memory space, for storing many pictures configuration information, wherein said many pictures configuration information comprises the meeting field information of many span mode information and each sprite.
As can be seen from the above technical solutions, the present invention is used for storing by memory space is set for MCU the many pictures configuration information arranging, making MCU enter many pictures arranges after pattern, can picture be set according to the many pictures configuration information that finally enters memory space, revert to up-to-date many pictures configuration information, if user need to recover this up-to-date many pictures setting, without repeating complicated setting up procedure; If MCU receives the instruction that comprises span mode information, according to span mode information, span mode is set, and the meeting-place of each sprite can be set according to the many pictures configuration information that finally enters memory space in many pictures configuration information corresponding to span mode information, if this kind of meeting-place that user need to recover to set under span mode arranges, also without repeating complicated sprite meeting-place, arrange.Obviously, the invention enables when many pictures of broadcast, the setting of many pictures is more simple, quick.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that split screen arranges interface;
Fig. 2 is main method flow chart provided by the invention;
Fig. 3 is the schematic diagram of multiple span mode;
Fig. 4 is the schematic diagram of explicit each meeting-place numbering of conference terminal;
Fig. 5 is apparatus structure schematic diagram provided by the invention.
Embodiment
In order to make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the drawings and specific embodiments, describe the present invention.
Method provided by the invention can as shown in Figure 2, mainly comprise the following steps:
Step 201:MCU receives and enters many pictures and arrange after the instruction of pattern, enters many pictures pattern is set.
Step 202: judge in the memory space of this MCU whether have many pictures configuration information, if so, according to the many pictures configuration information that finally enters memory space in memory space, many pictures are set, perform step 203; If not, perform step 203.
In the present invention, can memory space be set for MCU, this memory space is used for preserving many pictures configuration information.Wherein, many pictures configuration information comprises: the meeting field information that span mode and each sprite arrange.Maximum that can limited storage space according to the free space size of MCU.To the many pictures configuration information in this memory space, can adopt queue mode to manage, also can adopt other data structure to manage.
Management to many pictures configuration information in memory space can comprise following several respects:
1), if MCU does not carry out the setting of too much picture, memory space is empty.
2) MCU to many pictures after setting completed, is stored in many pictures configuration information in memory space according to time sequencing.
3) if memory space is full, can adopt mode below to delete after existing many pictures configuration information, store again new many pictures configuration information: traversal memory space, if there is many pictures configuration information with many pictures configuration information to be stored with identical span mode in memory space, deletion has in many pictures configuration information of identical span mode the earliest; Otherwise many pictures configuration information the earliest or delete the minimum many pictures configuration information of sprite number in deletion memory space.Can certainly adopt other deletion mode, for example, directly delete many pictures configuration information the earliest in memory space, or directly delete the minimum many pictures configuration information of sprite number etc.Exhaustive no longer one by one at this.
Step 203: if MCU receives the instruction that comprises span mode information, the span mode of many pictures is set according to the span mode information comprising in instruction, performs step 204; Otherwise, directly perform step 206.
When span mode refers to many pictures of configuration, the sprite number of many pictures, the size of sprite and the position relationship of sprite, can comprise: 2 split screens, 3 split screens, 4 split screens, 9 split screens, 16 split screens etc.As shown in Figure 3.
Step 204: judge in the memory space of MCU whether comprise many pictures configuration information corresponding to this span mode information; If so, the meeting field information of each sprite is set according to the many pictures configuration information that finally enters memory space in many pictures configuration information corresponding to this span mode information, performs step 205; If not, directly perform step 205.
Step 205: if MCU receives the instruction that comprises sprite configuration information, the meeting field information of corresponding sprite in many pictures is set according to the sprite configuration information comprising in instruction, until each sprite setting completed, perform step 206; Otherwise, directly perform step 206.
Step 206: receive after the instruction of the many pictures of broadcast, the many pictures that set are broadcasted, and according to current, arranging of many pictures stored to many pictures configuration information to memory space.
In this step, according to current many pictures are arranged to storage many pictures configuration information to before memory space, can first judge that whether the many pictures configuration information that will store is identical with the many pictures configuration information that finally enters memory space in memory space, if identical, needn't carry out this storage operation, if different, according to current, arranging of many pictures stored to many pictures configuration information to memory space.
Said method in Fig. 2 can be applied under director's pattern, when MCU keeper controls MCU, and the implementation procedure of MCU.
Lift an object lesson below said process is described, suppose that MCU was once set up 9 pictures and 4 pictures, therefore, in the memory space of MCU, stored picture configuration information more than two, correspondence 9 pictures wherein, another correspondence 4 pictures.At MCU, broadcasted after single-image, needed again to broadcast many pictures, can realize according to following detailed process:
MCU receives and enters split screen and arrange after the instruction of pattern, enter split screen pattern is set, and judge in the memory space of this MCU whether have many pictures configuration information, owing to there being picture configuration information more than two, according to the many pictures configuration information that finally enters memory space in memory space, many pictures are set, according to many pictures configuration information corresponding to 4 pictures, be arranged to 4 pictures, and the meeting field information of each sprite is set according to this many pictures configuration information.
Now, if the keeper of MCU wants to recover this set exactly, can broadcast the option of many pictures to the instruction of the many pictures of MCU transmission broadcast by click, MCU can directly broadcast 4 pictures that set, and wherein each sprite provides the video in corresponding meeting-place according to corresponding meeting field information.
If the keeper of MCU wants to be arranged to 9 pictures, can interface be set by many pictures and to MCU, send the instruction of being arranged to 9 pictures, it is 9 pictures that span mode is namely set.Now MCU judges in memory space and has comprised many pictures configuration information that 9 pictures are corresponding, and MCU arranges the meeting field information of each sprite according to many pictures configuration information corresponding to this 9 picture.
If the keeper of MCU is exactly the setting of wanting to recover this 9 picture, can broadcast the option of many pictures to the instruction of the many pictures of MCU transmission broadcast by click, MCU can directly broadcast 9 pictures that set, and wherein each sprite provides the video in corresponding meeting-place according to corresponding meeting field information.
If the keeper of MCU wants this 9 picture to reset the meeting field information of each sprite, can interface be set by many pictures and to MCU, send the instruction that comprises sprite configuration information, in this instruction, can comprise the meeting-place sign of sprite sign and this sprite.MCU arranges the meeting field information of corresponding sprite according to sprite configuration information.Treat to the meeting field information of each sprite after setting completed, preserve many pictures configuration information of this 9 picture to memory space.The keeper of MCU can broadcast the option of many pictures to the instruction of the many pictures of MCU transmission broadcast by click, and MCU broadcasts 9 pictures that set, and wherein each sprite provides the video in corresponding meeting-place according to corresponding meeting field information.
When MCU is provided with after span mode, if many pictures of corresponding identical span mode configuration information has many in memory space, the configuration information of picture more than many corresponding to this span mode can be arranged on interface explicitly in the mode of digital label according to time sequencing at many pictures, for MCU keeper, select to return to concrete which many pictures of bar configuration information.If MCU keeper clicks some digital labels, described MCU arranges the meeting field information of each sprite according to the corresponding many pictures configuration information of digital label of clicking.If MCU keeper does not click some digital labels, continue execution step 205.
Said method also can be applied under chairman's pattern, and conference terminal is realized the setting to many pictures by sending instruction to MCU.For example, conference terminal can enter or exit many pictures pattern is set by increase " many pictures " button on remote controller, sends and enters instruction that many pictures arrange pattern to MCU.Wherein between conference terminal and MCU, can send instruction by signaling H.245, in the data segment of signaling H.245, carry specifying information, also can send instruction by other privately owned signaling.
At this, give one example, suppose that content that user inputs by remote controller and corresponding purposes are as shown in table 1.
Table 1
| user's input | purposes | for example |
| * N# | the span mode of N picture is set | * 16# is for arranging 16 pictures |
| n*M# | it is M meeting-place that N sprite is set, and bundle panel number corresponds to meeting- |
3*8# is No. 8 meeting-place for 3 work song pictures are set |
| #N# | many pictures setting of N time before recovering | #1# recovers last many pictures setting |
| * # | broadcast/watch switching | notice MCU broadcasts many pictures or watches the setting of many pictures. |
The user of meeting-place terminal presses after " many pictures " button, sends and to enter instruction that many pictures arrange pattern to MCU.
The user of meeting-place terminal inputs * #, and what notice MCU need to arrange is to watch many pictures.
The user of meeting-place terminal inputs * 4#, and the instruction that transmission arranges 4 image modes is to MCU, and MCU is according to the span mode of the operation setting of step 203 4 pictures, and continuation execution step 204.
In the terminal of meeting-place, can understand field information to user by explicit each, for user, carry out the meeting field information setting of follow-up sprite, as shown in Figure 4.
The user of meeting-place terminal inputs 0*6#, and the meeting-place that sprite 0 is set is meeting-place, Guangzhou, and the instruction that comprises this sprite configuration information is sent to MCU, MCU execution step 205.Wherein, the meeting field information in sprite configuration information can be by meeting-place label (P, Q) sign, the identification number that wherein P is MCU, and Q is meeting-place identification number.
The user of meeting-place terminal inputs * #, sends after the instruction of the many pictures of broadcast to MCU, press many pictures that " many pictures " button exits terminal pattern is set, and the presetting bit of assurance camera can be used.MCU receives after the instruction of the many pictures of broadcast, and the many pictures that start setting are broadcasted.
In addition, the user of meeting-place terminal can also input #1#, sends the instruction of the upper setting of picture more than of recovery to MCU.MCU receives after the instruction of the upper setting of picture more than of this recovery, obtains the many pictures configuration information that finally enters memory space from memory space, according to this many pictures configuration information, many pictures is set.The user who is meeting-place terminal inputs after #N#, sends the instruction of upper N the many pictures settings of recovery to MCU, and MCU obtains N reciprocal many pictures configuration information that enters memory space from memory space, according to this many pictures configuration information, many pictures is set.
This meeting-place terminal that many pictures are set can be the meeting-place terminal of Chair site, can be also other meeting-place terminal with the authority of arranging.
It is more than the detailed description that method provided by the present invention is carried out, below device provided by the present invention is described, this device is arranged in MCU, as shown in Figure 5, this device can comprise: command reception unit 501, set handling unit 502, the first judging unit 503, the second judging unit 504, image broadcast unit 505, storage processing unit 506 and memory space 500.
The first judging unit 503, for receiving after judgement notice, judges in memory space 500, whether there is many pictures configuration information.
The second judging unit 504, for receiving after judgement notice, judges in memory space 500, whether to comprise many pictures configuration information corresponding to this span mode information.
Further, this device can also comprise: maintenance of information unit 507, when in this set handling unit, 502 many pictures of storage configuration informations are to memory space 500, if memory space 500 is full, travel through memory space 500, if there is many pictures configuration information with many pictures configuration information to be stored with identical span mode in memory space 500, delete the many pictures configuration information that enters the earliest memory space 500 in this many pictures configuration information with identical span mode; Otherwise delete, enter the earliest many pictures configuration information of memory space 500 or delete the minimum many pictures configuration information of memory space 500 neutron frame numbers.
Wherein, above-mentioned command reception unit 501 can receive the instruction that interface is set from many pictures of MCU, or receives from the instruction that has many pictures and arrange the conference terminal of authority.
Further, this device can also comprise: recovery unit 508 is set, while being used for receiving in command reception unit 501 instruction of N many pictures settings in recovery, from memory space 500, obtain N reciprocal many pictures configuration information that enters memory space 500, according to many pictures configuration information of obtaining, this many pictures are set.
More preferably, this device can also comprise: the 3rd judging unit 509 and tag processes unit 510.
The 3rd judging unit 509, for receiving after judgement notice, judges in memory space 500, whether to comprise the configuration information of picture more than many corresponding to this span mode information.
By above description, can be found out, method and apparatus provided by the invention can possess following advantage:
1) the present invention is used for storing by memory space is set for MCU the many pictures configuration information arranging, making MCU enter many pictures arranges after pattern, can picture be set according to the many pictures configuration information that finally enters memory space, revert to up-to-date many pictures configuration information, if user need to recover this up-to-date many pictures setting, without repeating complicated setting up procedure; If MCU receives the instruction that comprises span mode information, according to span mode information, span mode is set, and the meeting-place of each sprite can be set according to the many pictures configuration information that finally enters memory space in many pictures configuration information corresponding to span mode information, if this kind of meeting-place that user need to recover to set under span mode arranges, also without repeating complicated sprite meeting-place, arrange.Obviously, the invention enables when many pictures of broadcast, the setting of many pictures is more simple, quick.
2) method provided by the invention not only can, for the setting of MCU keeper to MCU under director's pattern, equally also can, for the setting of conference terminal to MCU under chairman's pattern, make operation more flexible and convenient.
3) the invention provides the mode that the many pictures of multiple recovery arrange, such as recovering, set a certain set-up mode under span mode, in recovery, N subframe arranges etc., for user provides implementation flexibly.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of making, be equal to replacement, improvement etc., within all should being included in the scope of protection of the invention.
Claims (10)
1. a method for broadcasting multiple pictures in video conference, is characterized in that, the method comprises:
A, multipoint control unit MCU receive and enter many pictures and arrange after the instruction of pattern, entering many pictures arranges pattern and judges in memory space, whether there is many pictures configuration information, if, according to the many pictures configuration information that finally enters memory space in described memory space, many pictures are set, execution step B; If not, directly perform step B;
If the described MCU of B receives the instruction that comprises span mode information, the span mode of many pictures is set, execution step C according to described span mode information; Otherwise, directly perform step E;
C, judge in the memory space of MCU whether comprise many pictures configuration information corresponding to described span mode information; If so, the meeting field information of each sprite is set according to the many pictures configuration information that finally enters memory space in many pictures configuration information corresponding to described span mode information, execution step D; Otherwise, directly perform step D;
If D MCU receives the instruction that comprises sprite configuration information, the meeting field information of corresponding sprite in many pictures is set according to described sprite configuration information, until each sprite setting completed, execution step E; Otherwise, directly perform step E;
E, described MCU receive after the instruction of the many pictures of broadcast, the many pictures that set are broadcasted and judged that whether current many pictures configuration information that correspondence is set to many pictures is identical with the many pictures configuration information finally entering in current memory space, if not, according to current, arranging of many pictures stored to many pictures configuration information to memory space, if so, process ends;
Wherein, described many pictures configuration information comprises: the meeting field information of span mode information and each sprite.
2. method according to claim 1, it is characterized in that, while storing many pictures configuration information to memory space in step e, if described memory space is full, travel through described memory space, if there is many pictures configuration information with many pictures configuration information to be stored with identical span mode in memory space, described in deleting, there is the many pictures configuration information that enters the earliest memory space in many pictures configuration information of identical span mode; Otherwise delete, enter the earliest many pictures configuration information of described memory space or delete the minimum many pictures configuration information of described memory space neutron frame numbers.
3. method according to claim 1, is characterized in that, the instruction in steps A, B, D and E arranges interface from many pictures of described MCU, or from the conference terminal that there are many pictures and arrange authority.
4. method according to claim 1, it is characterized in that, the method also comprises: when described MCU receives the instruction that recovers upper N many pictures settings, from memory space, obtain N reciprocal many pictures configuration information that enters memory space, according to many pictures configuration information of obtaining, described many pictures are set.
5. method according to claim 1, is characterized in that, be, and before described step D, the method also comprises judgment result is that of described step C:
If comprise the configuration information of picture more than many corresponding to described span mode information in the memory space of F MCU, described MCU arranges interface on explicit according to time sequencing at many pictures in the mode of digital label by the described configuration information of picture more than many;
If one of them digital label of G is clicked, according to the corresponding many pictures configuration information of clicked digital label, the meeting field information of each sprite is arranged execution step E; Otherwise continue to carry out described step D.
6. the device of a broadcasting multiple pictures in video conference, this device is arranged in MCU, it is characterized in that, this device comprises: command reception unit, set handling unit, the first judging unit, the second judging unit, image broadcast unit, storage processing unit and memory space;
Described command reception unit, for receiving instruction;
Described set handling unit, enters many pictures and arranges after the instruction of pattern for receiving in described command reception unit, enters many pictures pattern is set, and send judgement notice to described the first judging unit; When judgment result is that of described the first judging unit is, according to the many pictures configuration information that finally enters memory space in described memory space, many pictures are set; If described command reception unit receives the instruction that comprises span mode information, the span mode of many pictures is set according to described span mode information, and sends judgement notice to described the second judging unit; When judgment result is that of described the second judging unit is, the meeting field information of each sprite is set according to the many pictures configuration information that finally enters memory space in many pictures configuration information corresponding to described span mode information; If described command reception unit receives the instruction that comprises sprite configuration information, the meeting field information of corresponding sprite in many pictures is set according to described sprite configuration information, until each sprite setting completed;
Described the first judging unit, for receiving after judgement notice, judges in described memory space, whether there is many pictures configuration information;
Described the second judging unit, for receiving after judgement notice, judges in described memory space, whether to comprise many pictures configuration information corresponding to described span mode information;
Described image broadcast unit, for receiving in described command reception unit after the instruction of the many pictures of broadcast, broadcasts the many pictures that set;
Described storage processing unit, for receiving in described command reception unit after the instruction of the many pictures of broadcast, judge that whether current many pictures configuration information that correspondence is set to many pictures is identical with the many pictures configuration information finally entering in current memory space, if not, according to current, arranging of many pictures stored to many pictures configuration information to memory space, if not, do not carry out described storage operation;
Described memory space, for storing many pictures configuration information, wherein said many pictures configuration information comprises the meeting field information of many span mode information and each sprite.
7. device according to claim 6, it is characterized in that, this device also comprises: maintenance of information unit, while being used for storing many pictures configuration information to memory space in described set handling unit, if described memory space is full, travel through described memory space, if there is many pictures configuration information with many pictures configuration information to be stored with identical span mode in memory space, described in deleting, there is the many pictures configuration information that enters the earliest memory space in many pictures configuration information of identical span mode; Otherwise delete, enter the earliest many pictures configuration information of described memory space or delete the minimum many pictures configuration information of described memory space neutron frame numbers.
8. device according to claim 6, is characterized in that, described command reception unit receives the instruction that interface is set from many pictures of MCU, or receives from the instruction that has many pictures and arrange the conference terminal of authority.
9. device according to claim 6, it is characterized in that, this device also comprises: recovery unit is set, while being used for receiving in described command reception unit the instruction of N many pictures settings in recovery, from described memory space, obtain N reciprocal many pictures configuration information that enters memory space, according to many pictures configuration information of obtaining, described many pictures are set.
10. device according to claim 6, is characterized in that, this device also comprises: the 3rd judging unit and tag processes unit;
Described set handling unit, before sending judgement notice to described the second judging unit, sends judgement notice to described the 3rd judging unit; If receive many pictures configuration information that described tag processes unit provides, according to this many pictures configuration information, the meeting field information of each sprite is arranged; If do not receive many pictures configuration information that described tag processes unit provides, continue to carry out the operation that sends judgement notice to described the second judging unit;
Described the 3rd judging unit, for receiving after judgement notice, judges in described memory space, whether to comprise the configuration information of picture more than many corresponding to described span mode information;
Described tag processes unit, for when judgment result is that of described the 3rd judging unit is, described many picture configuration informations are offered to many pictures in the mode of digital label according to time sequencing, and that interface is set is explicit; If one of them digital label is clicked, the corresponding many pictures configuration information of this clicked digital label is offered to described set handling unit.
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| CN109768964B (en) * | 2018-12-13 | 2022-03-29 | 视联动力信息技术股份有限公司 | Audio and video display method and device |
| CN113727149B (en) | 2021-08-31 | 2023-06-30 | 京东方科技集团股份有限公司 | Display control method and device, video processing device and display system |
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| CN101316352A (en) * | 2008-07-01 | 2008-12-03 | 中兴通讯股份有限公司 | Method and device for implementing multiple pictures of conference television system, video gateway and implementing method thereof |
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