CN102065231B - Multipath data fusion device, realization method thereof and multipath audio data processing system - Google Patents
Multipath data fusion device, realization method thereof and multipath audio data processing system Download PDFInfo
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Abstract
The invention discloses a multipath data fusion device, a realization method thereof and a multipath audio data processing system, wherein the method comprises the following steps of: in each sampling period, simultaneously receiving N paths of digital audio data and respectively distributing the digital audio data received in the first half period and the digital audio data received in the second half period to a first data buffer and a second data buffer for storage, wherein N is not less than 2; fusing and packing all digital audio data distributed to the first data buffer and the second data buffer in the current sampling period; and sequentially transmitting the fused and packed digital audio data stored in the first data buffer and the second data buffer to an audio and video processor. The invention realizes no-delay and no-loss transmission and processing of the audio data.
Description
Technical field
The invention belongs to protection and monitor field, relate to FPGA/CPLD logical design, multimedia technology and audio signal processing technique, particularly a kind of multichannel data fusing device and its implementation, multi-path audio-frequency data processing system.
Background technology
Along with the progressively raising of social security environmental requirement, more and more to the demand of safety monitoring equipment both at home and abroad, also more and more stricter to the control of cost, thus multichannel watch-dog becomes a kind of development trend.
Typical safety monitoring equipment all can comprise video acquisition and audio collection.The signal of audio collection has two kinds: sound accompaniment and voice.
Sound accompaniment is the background sound collection at video monitoring scene, and sound accompaniment stream is continuously continual.Must keep synchronously between all sound channels, guarantee that nothing time-delay or time-delay are in tolerance interval.In addition, each road sound channel all will keep lip synchronous with corresponding video channel, and the image of namely seeing after the client decoding will keep synchronously obvious delay being arranged with the sound of hearing.
Voice are used for client and monitor on-the-spot telecommunication, and voice flow is interrupted, but the transmission of voice must be in real time, and time-delay will be in tolerance interval.
In the safety monitoring terminal equipment of main flow, voice only have one the tunnel at present, and sound accompaniment has 1 the tunnel, the 2 tunnel, the 4 tunnel, the 8 tunnel, the 16 tunnel not wait.Sound accompaniment and the voice of input all are analog quantitys, and they must at first through the processing of audio frequency analog to digital converter (ADC), convert thereof into digital audio, otherwise audio video processor can't be processed.ADC can change the multi-channel analog audio conversion into one railway digital audio frequency, but the accessible analog channel number of ADC is limited, when voice-grade channel is many, must use multi-disc ADC, will produce the multi-path digital audio frequency like this.
Audio video processor commonly used, audio interface quantity is limited, mostly only has an interface.If in multi-path digital audio frequency when input, arranged simultaneously, guarantee voice-grade channel synchronously, not the losing of voice data, it is helpless only relying on audio video processor, must add control circuit.
The control circuit that present solution multichannel voice frequency is inputted simultaneously often adopts the multi-channel switcher that comprises buffer memory shown in Figure 1.In Fig. 1, the digital audio of ADC output at first deposits buffer memory separately in, then according to about definite sequence, by the mode that multichannel is switched, the voice data in each buffer memory is sent into respectively audio video processor.
The major defect that control circuit shown in Figure 1 exists comprises: poor synchronization, and need to add extra buffer memory and cause cost to increase, audio video processor is required high.These shortcomings show more obviously when port number is more.Multi-channel switcher is sent each railway digital audio frequency into audio video processor in order, and that sends at first is processed at first, then down arranges successively.Although do not have loss of data, between each passage time-delay can be arranged, the time-delay of sending into the latest audio video processor is maximum.In addition, if sound accompaniment has been used different ADC from voice, digital audio format just may there are differences, and is different such as conversion accuracy.For this species diversity, need in audio video processor, add extra treatment step, not only take more resource, audio video processor is also had higher requirement.Generally speaking, this control circuit is unsatisfactory, and applicability is not strong.
Summary of the invention
The object of the present invention is to provide a kind of multichannel data fusing device and its implementation, realize with less Resources Consumption the fusion of multi-path digital voice data being become a railway digital voice data.
Another object of the present invention is to provide a kind of multi-path audio-frequency data processing system, realize without the audio data transmission and the processing that postpone, nothing is lost.
The embodiment of the invention is achieved in that a kind of multichannel data fusing device, comprising: data buffer zone, input module, data fusion packetization module, output module and input and output fit module; Wherein,
Described data buffer zone comprises the first data buffer zone and the second data buffer zone, is used for the storage digital audio-frequency data;
Described input module, be used for receiving the N road from the digital audio-frequency data of the N with identical sample rate audio frequency analog to digital converter simultaneously, and will when received digital audio-frequency data of front half period in each sampling period and later half cycle etc., be assigned in the different data buffer zones; Described N 〉=2;
Described data fusion packetization module is used for when input module carries out the data storage its all digital audio-frequency datas that obtain in each sampling period being merged packing;
Described output module is used for described the first data buffer zone and the second data buffer zone are sent to audio video processor through the digital audio-frequency data that merges packing;
Described input and output fit module was used in the front half period in each sampling period, and the control inputs module is assigned to the storage of the first data buffer area with digital audio-frequency data, and the control output module is exported the digital audio-frequency data of storing in the second data buffer area; In the later half cycle in each sampling period, the control inputs module is assigned to the storage of the second data buffer area with digital audio-frequency data, and the control output module is exported the digital audio-frequency data of storing in the first data buffer area.
Wherein, the data transfer rate of described output module be input module data transfer rate N doubly.
Wherein, the space size S of described the first data buffer zone and the second data buffer zone is identical, and S=(D
Max* N)/2; Wherein, D
MaxBe the maximum data width in N the digital audio-frequency data of described different audio frequency analog to digital converter conversion outputs.
Wherein, described data fusion packetization module also is used for the form of this digital audio-frequency data being unified to process before all digital audio-frequency datas are merged packing.
A kind of multichannel voice frequency is fused to the implementation method of SCVF single channel voice frequency, comprises: in each sampling period,
Receive simultaneously N railway digital voice data, and the digital audio-frequency data that the front half period is received and received digital audio-frequency data of later half cycle are assigned to respectively the first data buffer zone and the storage of the second data buffer zone; Described N 〉=2;
All digital audio-frequency datas that the current sampling period is assigned to the first data buffer zone and the second data buffer zone merge and pack;
The digital audio-frequency data through fusion and packing that is stored in the first data buffer zone and the second data buffer zone is sent to audio video processor in order.
Wherein, the described method that all digital audio-frequency datas are merged is: in the digital audio-frequency data storage, the initial space storage synchronizing information in the first data buffer zone is filled invalid data at the ending remaining space of the second data buffer zone.
Wherein, the described step that digital audio-frequency data is sent to audio video processor in order further comprises: the front half period in each sampling period, the digital audio-frequency data that is stored in the second data buffer zone is sent to audio video processor; In the later half cycle in each sampling period, the audio, video data that is stored in the first data buffer zone is sent to audio video processor.
Wherein, described the multi-path digital voice data is assigned to the storage of the first data buffer zone and the second data buffer zone before, the form of each railway digital voice data is unified to process.
Said method also comprises: after described audio video processor is received digital audio-frequency data, remove the synchronizing information of stem and the invalid data of afterbody, obtain decomposing behind the significant digits voice data wherein, corresponding with every road analogue audio frequency passage according to storage order.
A kind of multi-path audio-frequency data processing system, comprise for the multi-channel analog audio conversion being the audio frequency analog to digital converter of a railway digital audio frequency and the audio video processor that digital audio-frequency data is processed, also comprise aforesaid multichannel data fusing device, be connected between described audio frequency analog to digital converter and the audio video processor, be used for to receive the N railway digital voice data from N audio frequency analog to digital converter, and send to audio video processor after this N railway digital voice data fusion is packaged into the single channel digital audio-frequency data.
The embodiment of the invention compared with prior art, beneficial effect is:
1) multichannel data fusing device proposed by the invention only needs the middle-size and small-size FPGA/CPLD of a slice to realize, and is simple and reliable, with low cost.
2) the present invention is when realization is fused into the single channel digital audio-frequency data with the multi-path digital voice data, overcome the difference between different ADC output data formats, realized the synchronous requirement between all sound channels, and the lip between sound accompaniment and the video is synchronous, has guaranteed the real-time of voice transfer.
3) has stronger autgmentability, the port number of accessible digital audio-frequency data is unrestricted, only need to enlarge the space of data buffer area, do not need to add extra treatment circuit or adopt complicated processing method, reduced the requirement to audio interface and the disposal ability thereof of audio video processor.
Description of drawings
Fig. 1 is the control circuit schematic diagram that comprises buffer memory and multi-channel switch.
Fig. 2 is the structural representation of multi-path audio-frequency data processing system proposed by the invention.
Fig. 3 is the schematic diagram that is assigned to the data buffer zone in the embodiment of the invention during with each railway digital audio frequency etc.
Fig. 4 is the structural representation of multi-path audio-frequency data processing system in the embodiment of the invention.
Fig. 5 is ADC in the embodiment of the invention
1With ADC
2The digital audio format schematic diagram of output.
Fig. 6 is through merging and the frame data format of packing in the embodiment of the invention.
Fig. 7 is input, output module cooperation schematic diagram in the embodiment of the invention.
Embodiment
See also Fig. 2, multi-path audio-frequency data processing system proposed by the invention comprises: ADC
1~ ADC
N, multichannel data fusing device and audio video processor; ADC
1, ADC
NAll in order to the multi-channel analog audio conversion is changed into a railway digital audio frequency (such as figure, ADC
1J road analogue audio frequency is converted to 1 railway digital audio frequency, ADC
2K road analogue audio frequency is converted to 1 railway digital audio frequency, ADC
NL road analogue audio frequency is converted to 1 railway digital audio frequency); Multichannel data fusing device and ADC
1~ ADC
N, audio video processor connects respectively, further comprises data buffer zone, input module, data fusion packetization module, output module and input and output fit module, is used for receiving ADC
1~ ADC
NThe altogether N railway digital voice data of output and it is fused into the single channel digital audio-frequency data after send to audio video processor.
Wherein, input module has a plurality of data channel, and output module only has a data passage, for the continuity (being that the data that gather in the unit interval sent within the unit interval) that guarantees transfer of data, the data transfer rate of output module must be N times (port number of N representative digit audio frequency) of input module.
The data buffer zone comprises data buffer zone 1 and data buffer zone 2, has identical space size S, and S=(D
Max* N)/2; Wherein, D
MaxBe the maximum data width in N the digital audio-frequency data of audio frequency analog to digital converter conversion output.
Said system with the implementation method that multi-path audio-frequency data is fused into the SCVF single channel voice frequency data is:
The first step: input module receives each railway digital voice data simultaneously, according to sampling clock, take the sampling period as unit, be assigned to different data buffer zones during with each railway digital voice data of sampling in the unit interval etc.Distribute schematic diagram during waiting as shown in Figure 3, in each sampling period, each railway digital voice data that the front half period is received is assigned to storage in the data buffer zone 1, and each railway digital voice data that the later half cycle is received is assigned to storage in the data buffer zone 2.
Second step: the voice data that the current sampling period is assigned to the data buffer zone merges and packs.If there is the inconsistent situation of digital audio format, need before the storage to process first, with uniform format.Data fusion method is: in the data storage, and 1 the initial space storage synchronizing information in the data buffer zone, 2 ending remaining space is filled with invalid data in the data buffer zone, and its complementary space is the effective voice data of storage all.Like this, data buffer zone 1 and data buffer zone 2 data of storing are added up and have just been consisted of complete frame data.
The 3rd step: output module sends the digital audio-frequency data that merges after packing, according to sampling clock, the data of storing in two data buffering areas are sent into audio video processor in order, namely in the front half period in each sampling period, the digital audio-frequency data that is stored in the second data buffer zone is sent to audio video processor; In the later half cycle in each sampling period, the audio, video data that is stored in the first data buffer zone is sent to audio video processor.
In said process, input module and output module are worked simultaneously, and when input module received digital audio-frequency data, output module was also sending digital audio-frequency data, but both have used different data buffer zones.Under the control of sampling clock, input module and output module are used alternatingly data buffer zone 1 and data buffer zone 2: in the front half period in each sampling period, and input module usage data buffer district 1, output module usage data buffer district 2; In the later half cycle in each sampling period, input module usage data buffer district 2, output module usage data buffer district 1.In this process, input module and output module under the control of sampling clock according to beat, the switching that cooperatively interacts, not only guaranteed input audio stream and output audio stream continuously, also realized not pausing, transmit with losing.
The 4th step: audio video processor is after receiving digital audio-frequency data, judge the beginning of each frame by the identification synchronizing information, then remove synchronizing information and the invalid data of head and the tail part, the significant digits voice data that obtains is decomposed, corresponding with each road analogue audio frequency passage according to storage order.
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, multi-path audio-frequency data processing system of the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
In the present embodiment, the structure of multi-path audio-frequency data processing system has been used two ADC:ADC as shown in Figure 4 altogether
1With ADC
2, their accessible maximum analog voice-grade channel numbers are different, and sampling precision is also different, but the multi-channel analog audio conversion can both be changed into the I of a road sign standard
2The output of S format digital audio frequency; ADC
1For the treatment of sound accompaniment 1 ~ sound accompaniment 4, ADC
2For the treatment of voice, thereby produce the output of two-way digital audio: digital audio 1 and digital audio 2.
I
2S is a kind of audio format for the transmission stereophony, and highest order during transfer of data (MSB) is front, and lowest order (LSB) is rear.In each sampling period, the corresponding L channel of the digital audio of front half period, the corresponding R channel of the digital audio in rear cycle.
Fig. 5 is the data format of digital audio 1 and digital audio 2.As shown in Figure 5, ADC
1With ADC
2The digital audio format of output is inconsistent.ADC
14 road sound accompaniments are converted to respectively the digital quantity of 16-bit, ADC
2Be the digital quantity of 24-bit with 1 tunnel speech conversion.ADC
2Can realize simultaneously the analog-to-digital conversion of 2 road analogue audio frequencies, but only use L channel as phonetic entry in the present embodiment, so digital audio corresponding to R channel is hash entirely.In addition, because ADC
1The overall width of the digital quantity of output is 64bit, ADC
2The digital quantity of output is 24 bit, then ADC
1And ADC
2The maximum data width D of 2 railway digital audio frequency of output
Max=64bit is according to formula S=(D
Max* N)/2 can draw the space size S=64 bit of data buffer zone 1 and data buffer zone 2.
In the present embodiment, the course of work of multi-path audio-frequency data processing system is as follows.
Input module receives ADC simultaneously
1With ADC
2Digital audio 1 and the digital audio 2 exported respectively, they are assigned to two data buffering areas according to left and right sound channels: digital audio 1 is stored into data buffer zone 1 with the L channel data of digital audio 2, the right data of digital audio 1 is stored into data buffer zone 2, and the right data of digital audio 2 is all abandoned.
Because digital audio 1 is inconsistent with the form of digital audio 2, thereby before the data storage, need digital audio 1 and the form of digital audio 2 are unified to process: because ADC
1Export the digital quantity of 4 road 16bit, ADC
2Export the digital quantity of 1 road 24bit, so in the present embodiment according to the principle that the minority is subordinate to the majority, each railway digital audio format unification is 16bit, namely when depositing digital audio 2 in data buffer zone 1, only intercept the 16-bit of front, abandon the 8-bit of back, the loss that intercepting causes can compensate when client is decoded.
When carrying out the data storage, all data of storage in data buffer zone 1 and the data buffer zone 2 are merged and packs: synchronizing information is stored in the 16-bit space of 1 original position in the data buffer zone, 2 remaining space uses invalid data to fill in the data buffer zone, so far namely finish data fusion and the packing of two-way digital audio a sampling period, and it has been consisted of a complete frame: Fig. 6 is through merging the frame data format with packing, as shown in Figure 6, the total length of every frame data is 128-bit, with the synchronizing information of 16-bit as initial, as ending, the centre is effective voice data of 80-bit with the invalid data of 32-bit.
Afterwards, output module is sent every frame data into audio video processor.Fig. 7 is the cooperation schematic diagram of input module and output module in the said process, as shown in Figure 7, data buffer zone 1 alternately cooperates with data buffer zone 2, and every half period changes a data flow, thereby the continuously uninterrupted and nothing that has guaranteed input traffic and output stream is lost.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a multichannel data fusing device is characterized in that, this device comprises: data buffer zone, input module, data fusion packetization module, output module and input and output fit module; Wherein,
Described data buffer zone comprises the first data buffer zone and the second data buffer zone, is used for the storage digital audio-frequency data;
Described input module, be used for receiving the N road from the digital audio-frequency data of the N with identical sample rate audio frequency analog to digital converter simultaneously, and will when received digital audio-frequency data of front half period in each sampling period and later half cycle etc., be assigned in the different data buffer zones; Described N 〉=2;
Described data fusion packetization module is used for when input module carries out the data storage its all digital audio-frequency datas that obtain in each sampling period being merged packing;
Described output module is used for described the first data buffer zone and the second data buffer zone are sent to audio video processor through the digital audio-frequency data that merges packing;
Described input and output fit module was used in the front half period in each sampling period, and the control inputs module is assigned to the storage of the first data buffer zone with digital audio-frequency data, and the control output module is exported the digital audio-frequency data of storing in the second data buffer zone; In the later half cycle in each sampling period, the control inputs module is assigned to the storage of the second data buffer zone with digital audio-frequency data, and the control output module is exported the digital audio-frequency data of storing in the first data buffer zone.
2. multichannel data fusing device as claimed in claim 1 is characterized in that, the data transfer rate of described output module be input module data transfer rate N doubly.
3. multichannel data fusing device as claimed in claim 2 is characterized in that, the space size S of described the first data buffer zone and the second data buffer zone is identical, and S=(Dmax * N)/2; Wherein, Dmax is the maximum data width in N the digital audio-frequency data of described different audio frequency analog to digital converter conversion output.
4. multichannel data fusing device as claimed in claim 2 or claim 3 is characterized in that, described data fusion packetization module also is used for the form of each railway digital voice data being unified to process before all digital audio-frequency datas are merged packing.
5. one kind is fused to the implementation method of SCVF single channel voice frequency with multichannel voice frequency, it is characterized in that the method comprises: in each sampling period,
Receive simultaneously N railway digital voice data, and the digital audio-frequency data that the front half period is received is assigned to the first data buffer zone, the digital audio-frequency data that the later half cycle is received is assigned to the storage of the second data buffer zone; Described N 〉=2;
All digital audio-frequency datas that the current sampling period is assigned to the first data buffer zone and the second data buffer zone merge and pack;
The digital audio-frequency data through fusion and packing that is stored in the first data buffer zone and the second data buffer zone is sent to audio video processor in order: the front half period in each sampling period, the digital audio-frequency data that is stored in the second data buffer zone is sent to audio video processor; In the later half cycle in each sampling period, the digital audio-frequency data that is stored in the first data buffer zone is sent to audio video processor.
6. the implementation method that multichannel voice frequency is fused to SCVF single channel voice frequency as claimed in claim 5, it is characterized in that, the described method that all digital audio-frequency datas are merged is: in the digital audio-frequency data storage, initial space storage synchronizing information in the first data buffer zone is filled invalid data at the ending remaining space of the second data buffer zone.
7. such as claim 5 or the 6 described implementation methods that multichannel voice frequency are fused to SCVF single channel voice frequency, it is characterized in that, described the multi-path digital voice data is assigned to the storage of the first data buffer zone and the second data buffer zone before, the form of this digital audio-frequency data is unified to process.
8. the implementation method that multichannel voice frequency is fused to SCVF single channel voice frequency as claimed in claim 6, it is characterized in that, the method also comprises: after described audio video processor is received digital audio-frequency data, remove the synchronizing information of stem and the invalid data of afterbody, obtain decomposing behind the significant digits voice data wherein, corresponding with every road analogue audio frequency passage according to storage order.
9. multi-path audio-frequency data processing system, comprise for the multi-channel analog audio conversion being the audio frequency analog to digital converter of a railway digital audio frequency and the audio video processor that digital audio-frequency data is processed, it is characterized in that, also comprise multichannel data fusing device as claimed in claim 1, be connected between described audio frequency analog to digital converter and the audio video processor, be used for to receive the N railway digital voice data from N audio frequency analog to digital converter, and send to audio video processor after this N railway digital voice data fusion is packaged into the single channel digital audio-frequency data.
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106488357B (en) * | 2015-09-01 | 2019-07-05 | 视联动力信息技术股份有限公司 | A kind of method and apparatus of audio interface conversion |
| CN105261365A (en) * | 2015-09-15 | 2016-01-20 | 北京云知声信息技术有限公司 | Audio output method and device |
| CN105635909B (en) * | 2015-12-23 | 2019-05-03 | 深圳市东微智能科技股份有限公司 | A kind of FPGA large size voice-grade channel route matrix and its method for routing |
| CN106782562A (en) * | 2016-12-20 | 2017-05-31 | Tcl通力电子（惠州）有限公司 | Audio-frequency processing method, apparatus and system |
| CN106875952B (en) * | 2016-12-23 | 2021-02-26 | 伟乐视讯科技股份有限公司 | Multi-channel audio soft coding mechanism based on FPGA embedded system |
| CN107040832B (en) * | 2017-04-22 | 2019-06-11 | 广州市比丽普电子有限公司 | A kind of handheld terminal formula microphone system based on Bluetooth technology |
| CN111835991B (en) * | 2019-04-17 | 2024-04-02 | 鸿富锦精密工业(武汉)有限公司 | Display data channel circuit |
| CN110400570B (en) * | 2019-06-24 | 2021-08-31 | 成都航天通信设备有限责任公司 | Multi-channel digital audio mixing implementation method |
| CN111010652B (en) * | 2019-12-19 | 2021-02-02 | 杭州叙简科技股份有限公司 | Audio signal double-link backup method |
| CN112188610B (en) * | 2020-08-18 | 2023-08-01 | 天津七所精密机电技术有限公司 | Burst dense data fusion processing and high-precision synchronization device and method thereof |
| CN113741311B (en) * | 2021-09-16 | 2023-03-10 | 深圳市软赢科技有限公司 | Bus control system and method with sub-period high-frequency processing function |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6311161B1 (en) * | 1999-03-22 | 2001-10-30 | International Business Machines Corporation | System and method for merging multiple audio streams |
| CN101075183A (en) * | 2007-06-29 | 2007-11-21 | 北京中星微电子有限公司 | Multi-path audio-frequency data processing system |
| CN101516015A (en) * | 2008-12-31 | 2009-08-26 | 广东威创视讯科技股份有限公司 | Multi-path video data acquiring, processing and transmitting device and method thereof |
| CN101667845A (en) * | 2008-09-05 | 2010-03-10 | 中兴通讯股份有限公司 | Self-adapting incorporative method and self-adapting incorporative method system for multi-channel signals |
| CN101702305A (en) * | 2009-10-23 | 2010-05-05 | 广东威创视讯科技股份有限公司 | Method and device for converting, transmitting and processing multi-screen images |
-
2010
- 2010-11-26 CN CN201010559340XA patent/CN102065231B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6311161B1 (en) * | 1999-03-22 | 2001-10-30 | International Business Machines Corporation | System and method for merging multiple audio streams |
| CN101075183A (en) * | 2007-06-29 | 2007-11-21 | 北京中星微电子有限公司 | Multi-path audio-frequency data processing system |
| CN101667845A (en) * | 2008-09-05 | 2010-03-10 | 中兴通讯股份有限公司 | Self-adapting incorporative method and self-adapting incorporative method system for multi-channel signals |
| CN101516015A (en) * | 2008-12-31 | 2009-08-26 | 广东威创视讯科技股份有限公司 | Multi-path video data acquiring, processing and transmitting device and method thereof |
| CN101702305A (en) * | 2009-10-23 | 2010-05-05 | 广东威创视讯科技股份有限公司 | Method and device for converting, transmitting and processing multi-screen images |
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|---|---|
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