CN104333765B - A kind of processing method and processing unit of net cast stream - Google Patents
A kind of processing method and processing unit of net cast stream Download PDFInfo
- Publication number
- CN104333765B CN104333765B CN201410572786.4A CN201410572786A CN104333765B CN 104333765 B CN104333765 B CN 104333765B CN 201410572786 A CN201410572786 A CN 201410572786A CN 104333765 B CN104333765 B CN 104333765B
- Authority
- CN
- China
- Prior art keywords
- bit rate
- video file
- user terminal
- demand bit
- finished product
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
- H04N21/234309—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4 or from Quicktime to Realvideo
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440218—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4
Abstract
The invention discloses a kind of processing method and processing unit of net cast stream, to improve the efficiency of Video processing.Processing method includes：Obtain the net cast stream that code check is 512k；The net cast stream is spliced into complete video file according to the time sequencing of broadcasting, as intermediate video file；Whether the demand bit rate for judging user terminal is 512k；If the demand bit rate of the user terminal is 512k, the intermediate video file is directly carried out to turn the finished product video file that encapsulation process generation code check is 512k, and the finished product video file that the code check is 512k is sent into the user terminal；If the demand bit rate of the user terminal is not 512k, the intermediate video file is subjected to transcoding processing, generation meets the finished product video file of demand bit rate, and the finished product video file for meeting demand bit rate is sent into the user terminal.
Description
Technical field
The present invention relates to internet and technical field of video processing, more particularly to a kind of processing method of net cast stream
And processing unit.
Background technology
At present in multimedia messages such as transmission over networks audio/videos (A/V), mainly there are two kinds of sides of download and stream transmission
Case.The former uses downloading mode, and user must take into consideration two factors：Storage demand and broadcasting start-up study i.e. to client.
Because A/V files are general all larger, the memory capacity needed is also larger；Simultaneously because the limitation of network bandwidth, is downloaded normal
Chang Yaohua dozens of minutes even a few hours, so the delay of this processing method is also very big.
The latter is that stream transmission represents the time-base media such as sound, image or animation from video server to subscriber computer
Continuously, transmission in real time.In the system using stream transmission, user need not wait until that whole file is all downloaded and finish, and only need
It can be watched by the start-up study of several seconds or ten several seconds.When the time-base medias such as sound play on a client, file
Remainder will continue to download out of server on backstage.Stream transmission not only shortens start-up study tenfold, hundred times of ground,
And need not be too big buffer memory capacity.
Obviously, the key technology that Streaming Media is realized is exactly to transmit as a stream.It is transmitted by streaming technology, even in network
Under the conditions of very crowded or very poor dial-up connection, clear, unbroken sound shadow can be also provided to spectators, so that arrowband interconnects
Net transmission multimedia video audio content is possibly realized.
Stream transmission typically uses live TV stream (Live Broadcast Streaming, generally translate into live broadcast stream media)
The live TV stream of video is a series of video file of cbr (constant bit rate)s, fixed encapsulation format and duration very little, and Video editing software
It is generally necessary to different code checks are provided, the finished product video of different encapsulation format.Therefore needed in Video editing software to source video
File passes through multi task process.Wherein by video be converted into specified code check and form processing be related to video video code conversion and
Turn encapsulation technology.
Video code conversion：Refer to the video code flow of compressed encoding being converted into another video code flow, to adapt to difference
Network bandwidth, different terminal processing capacities and different user's requests.Transcoding is substantially one and first decodes, re-encoding
Process, therefore the code stream before and after conversion may follow identical video encoding standard, it is also possible to identical Video coding is not followed
Standard.The conversion of different code checks, the conversion of different compression coding modes, conversion of different encapsulation format etc. may wherein be included
Deng.
Turn encapsulation：Video encapsulation is to encapsulate the audio-frequency information after compressed encoding and video information according to a kind of form
In one file.Therefore the encapsulation format that video is simply changed in encapsulation, the other information without changing video are turned.Therefore envelope is turned
The efficiency of dress can be higher than transcoding.
, it is necessary to which the live TV stream of acquisition to be converted into the finished product video file of user's needs in existing video processing technique,
Processing method is：Video editing software obtains the live TV stream of video, has been obtained by some processing with live TV stream with code check with envelope
Fill the intermediate video file of form.Then in order to meet the needs of different code checks and encapsulation format, it is necessary to by intermediate video text
Part gives transcoding center and carries out transcoding.This processing method meets the user of Video editing software to a variety of codes of same video
The requirement of rate, a variety of encapsulation format.
Although current this method for processing video frequency meets requirement of the user to different code checks, different encapsulation format, still
Every video, which will carry out transcoding, can increase the processing time of Video editing software, so as to reduce operating efficiency.
The content of the invention
The present invention provides a kind of processing method and processing unit of net cast stream, to improve the efficiency of Video processing.
The present invention provides a kind of processing method of net cast stream, including：
Obtain the net cast stream that code check is 512k；
The net cast stream is spliced into complete video file according to the time sequencing of broadcasting, as intermediate video text
Part；
Whether the demand bit rate for judging user terminal is 512k；
If the demand bit rate of the user terminal is 512k, the intermediate video file is directly carried out turning at encapsulation
The finished product video file that reason generation code check is 512k, and the finished product video file that the code check is 512k is sent to the user
Terminal；
If the demand bit rate of the user terminal is not 512k, the intermediate video file is subjected to transcoding processing,
Generation meets the finished product video file of demand bit rate, and the finished product video file for meeting demand bit rate is sent into the use
Family terminal.
Optionally, in above-mentioned processing method, the step of whether demand bit rate for judging user terminal is 512k, specifically wraps
Include：
Whether the terminal type for judging the user terminal is mobile phone, is the demand bit rate for obtaining the mobile phone, otherwise
The demand bit rate of the user terminal is not 512k.
Optionally, in above-mentioned processing method, if the demand bit rate of the mobile phone can not be obtained, the mobile phone is given tacit consent to
Demand bit rate be 512k.
Optionally, in above-mentioned processing method, it is described obtain code check be 512k net cast stream the step of in, by regarding
Frequency capture card obtains the net cast stream.
Optionally, in above-mentioned processing method, in addition to：
According to the instruction of the user terminal, edit operation is carried out to the finished product video file.
In order to preferably realize the purpose of the present invention, present invention also offers a kind of processing unit of net cast stream, bag
Include：
Acquiring unit, it is used for：Obtain the net cast stream that code check is 512k；
Intermediate video file unit, is used for：The net cast stream is spliced into completely according to the time sequencing of broadcasting
Video file, as intermediate video file；
Judging unit, it is used for：Whether the demand bit rate for judging user terminal is 512k；
Turn encapsulation unit, be used for：If the demand bit rate of the user terminal is 512k, by the intermediate video file
Directly carry out turning the finished product video file that encapsulation process generation code check is 512k, and the finished product video that the code check is 512k is literary
Part is sent to the user terminal；
Transcoding units, it is used for：If the demand bit rate of the user terminal is not 512k, by the intermediate video file
Transcoding processing is carried out, generation meets the finished product video file of demand bit rate, and the finished product video for meeting demand bit rate is literary
Part is sent to the user terminal.
Optionally, in above-mentioned processing unit, the judging unit, it is specifically used for：
Whether the terminal type for judging the user terminal is mobile phone, is the demand bit rate for obtaining the mobile phone, otherwise
The demand bit rate of the user terminal is not 512k.
Optionally, in above-mentioned processing unit, the judging unit, it is additionally operable to：If the code of the mobile phone can not be obtained
Rate demand, the then demand bit rate for giving tacit consent to the mobile phone are 512k.
Optionally, in above-mentioned processing unit, the acquiring unit is video frequency collection card.
Optionally, in above-mentioned processing unit, in addition to：
Edit cell, it is used for：According to the instruction of the user terminal, edit operation is carried out to the finished product video file.
The present invention has following technique effect：
1) embodiment of the present invention is especially handled 512k video, is also 512k's in the demand bit rate of user terminal
In the case of, without transcoding, directly carry out turning encapsulation process, so as to improve treatment effeciency.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
Obtain it is clear that or being understood by implementing the present invention.The purpose of the present invention and other advantages can be by the explanations write
Specifically noted structure is realized and obtained in book, claims and accompanying drawing.
Below by drawings and examples, technical scheme is described in further detail.
Brief description of the drawings
Accompanying drawing is used for providing a further understanding of the present invention, and a part for constitution instruction, the reality with the present invention
Apply example to be used to explain the present invention together, be not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the flow chart of the processing method of one embodiment of the invention；
Fig. 2 is the flow chart of the processing method of another embodiment of the present invention；
Fig. 3 is the flow chart of the processing method of further embodiment of the present invention；
Fig. 4 is the structure chart of the processing unit of one embodiment of the invention；
Fig. 5 is the structure chart of the processing unit of another embodiment of the present invention.
Embodiment
The preferred embodiments of the present invention are illustrated below in conjunction with accompanying drawing, it will be appreciated that described herein preferred real
Apply example to be merely to illustrate and explain the present invention, be not intended to limit the present invention.
Fig. 1 is the flow chart of the implementation method of the embodiment of the present invention, is regarded as shown in figure 1, the embodiment of the present invention provides one kind
The processing method of frequency live TV stream, including：
Step 101, the net cast stream that code check is 512k is obtained；
Step 102, the net cast stream is spliced into complete video file according to the time sequencing of broadcasting, as in
Between video file；
Step 103, whether the demand bit rate for judging user terminal is 512k；
Step 104, if the demand bit rate of the user terminal is 512k, the intermediate video file is directly carried out
Turn the finished product video file that encapsulation process generation code check is 512k, and the finished product video file that the code check is 512k is sent to
The user terminal；
Step 105, if the demand bit rate of the user terminal is not 512k, the intermediate video file is turned
Code processing, generation meets the finished product video file of demand bit rate, and the finished product video file for meeting demand bit rate is sent
To the user terminal.
It can be seen that the embodiment of the present invention is especially handled 512k video, also it is in the demand bit rate of user terminal
In the case of 512k, without transcoding, directly carry out turning encapsulation process, so as to improve treatment effeciency.Wherein, the embodiment of the present invention
It is that the video that 512k is found by the deep research and development to existing video requirement meets the screen demand of most of mobile terminal, leads to
Analysis is crossed, the share that the demand of 512k videos is shared in video clipping is very big, and therefore, directly 512k video is carried out
Turn encapsulation process, treatment effeciency can be obviously improved.
Fig. 2 is the flow chart of the processing method of another embodiment of the present invention, in another embodiment of the present invention, is sentenced
Whether the demand bit rate of disconnected user terminal is 512k；Specifically include：
Whether the terminal type for judging the user terminal is mobile phone, is the demand bit rate for obtaining the mobile phone, otherwise
The demand bit rate of the user terminal is not 512k.If the demand bit rate of the mobile phone can not be obtained, the mobile phone is given tacit consent to
Demand bit rate be 512k, if can obtain, according to the demand bit rate of acquisition confirm the mobile phone demand bit rate whether be
512k。
Therefore, the embodiment complete procedure is as follows：
Step 101, the net cast stream that code check is 512k is obtained；
Step 102, the net cast stream is spliced into complete video file according to the time sequencing of broadcasting, as in
Between video file；
Step 103, whether the terminal type for judging the user terminal is mobile phone, is that the code check for obtaining the mobile phone needs
Ask, otherwise the demand bit rate of the user terminal is not 512k；If the demand bit rate of the mobile phone can not be obtained, institute is given tacit consent to
The demand bit rate for stating mobile phone is 512k, if can obtain, the demand bit rate of the mobile phone is confirmed according to the demand bit rate of acquisition
Whether it is 512k；
Step 104, if the demand bit rate of the user terminal is 512k, the intermediate video file is directly carried out
Turn the finished product video file that encapsulation process generation code check is 512k, and the finished product video file that the code check is 512k is sent to
The user terminal；
Step 105, if the demand bit rate of the user terminal is not 512k, the intermediate video file is turned
Code processing, generation meets the finished product video file of demand bit rate, and the finished product video file for meeting demand bit rate is sent
To the user terminal.
Wherein, it is described obtain code check be 512k net cast stream the step of in, by video frequency collection card obtain described in regard
Frequency live TV stream.
As shown in figure 3, in yet another embodiment of the present invention, in addition to：
Step 106, according to the instruction of the user terminal, edit operation is carried out to the finished product video file.
Fig. 4 is the structure chart of the processing unit of one embodiment of the invention, as shown in figure 4, a kind of place of net cast stream
Device is managed, including：
Acquiring unit 401, is used for：Obtain the net cast stream that code check is 512k；
Intermediate video file unit 402, is used for：The net cast stream is spliced into completely according to the time sequencing of broadcasting
Video file, as intermediate video file；
Judging unit 403, is used for：Whether the demand bit rate for judging user terminal is 512k；
Turn encapsulation unit 404, be used for：If the demand bit rate of the user terminal is 512k, by the intermediate video
File is directly carried out turning the finished product video file that encapsulation process generation code check is 512k, and the finished product that the code check is 512k is regarded
Frequency file is sent to the user terminal；
Transcoding units 405, are used for：If the demand bit rate of the user terminal is not 512k, by the intermediate video
File carries out transcoding processing, and generation meets the finished product video file of demand bit rate, and the finished product for meeting demand bit rate is regarded
Frequency file is sent to the user terminal.
Wherein, the judging unit, is specifically used for：Whether the terminal type for judging the user terminal is mobile phone, is then
The demand bit rate of the mobile phone is obtained, otherwise the demand bit rate of the user terminal is not 512k.If the hand can not be obtained
The demand bit rate of machine, the then demand bit rate for giving tacit consent to the mobile phone are 512k.
The acquiring unit can be video frequency collection card.
Fig. 5 is the structure chart of the processing unit of another embodiment of the present invention, as shown in figure 5, processing unit, in addition to：
Edit cell 407, is used for：According to the instruction of the user terminal, edlin behaviour is entered to the finished product video file
Make.
It can be seen that processing unit of the present invention can provide video editing function.Processing unit obtains 512k net cast stream informations
Afterwards, intermediate video file is generated by processing, if the requirement of finished product video file and 512k code check, processing unit is not just right
Intermediate video file does transcoding processing, and is replaced with encapsulation process is turned.If finished product video file requires the text of other code checks
Part, then processing unit still does transcoding processing.In this way, regarded for the live circulation 512k of substantial amounts of 512k finished product
Frequency file just reduces substantial amounts of processing time, substantially increases the efficiency of Video editing software.
In Video editing software compared with the prior art the more time can be spent to be converted into 512k in 512k live TV stream
Finished product video file, and treating method and apparatus of the embodiment of the present invention be exactly for such case with turn encapsulate a technology replace
Transcoding, so as to improve the efficiency of Video editing software.
In actual use, the video handled by software for editing some be used in mobile phone terminal.And for similar
This kind of mobile device of mobile phone, 512K video is selected with regard to video quality can be met, and the bandwidth that foradownloaded video is consumed is tried one's best
Reduce.According to existing processing method, 512k (code check) live TV stream is also required to just be converted into finished product video by transcoding.This
The video that sample is handled in software for editing for mobile device is also required to the live circulation by spending the more time in 512k
512k finished product video file is turned to, and treatment method is exactly to replace transcoding with the technology for turning encapsulation for such case, from
And improve the efficiency of Video editing software.
Therefore 512K code check is selected here, is that 512K code check can either because for this kind of mobile device of mobile phone
Meet quality, reduce file size as far as possible again.
It should be understood by those skilled in the art that, embodiments of the invention can be provided as method, system or computer program
Product.Therefore, the present invention can use the reality in terms of complete hardware embodiment, complete software embodiment or combination software and hardware
Apply the form of example.Moreover, the present invention can use the computer for wherein including computer usable program code in one or more
The shape for the computer program product that usable storage medium is implemented on (including but is not limited to magnetic disk storage and optical memory etc.)
Formula.
The present invention is the flow with reference to method according to embodiments of the present invention, equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that can be by every first-class in computer program instructions implementation process figure and/or block diagram
Journey and/or the flow in square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided
The processors of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that produced by the instruction of computer or the computing device of other programmable data processing devices for real
The device for the function of being specified in present one flow of flow chart or one square frame of multiple flows and/or block diagram or multiple square frames.
These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which produces, to be included referring to
Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or
The function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, so as in computer or
The instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in individual square frame or multiple square frames.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (6)
- A kind of 1. processing method of net cast stream, it is characterised in that including：Obtain the net cast stream that code check is 512k；The net cast stream is spliced into complete video file according to the time sequencing of broadcasting, as intermediate video file；Whether the demand bit rate for judging user terminal is 512k；If the demand bit rate of the user terminal is 512k, the intermediate video file is directly carried out to turn encapsulation process life User's end is sent into the finished product video file that code check is 512k, and by the finished product video file that the code check is 512k End；If the demand bit rate of the user terminal is not 512k, the intermediate video file is subjected to transcoding processing, generation Meet the finished product video file of demand bit rate, and the finished product video file for meeting demand bit rate is sent to user's end End；The step of whether demand bit rate for judging user terminal is 512k specifically includes：Judge the terminal type of the user terminal Whether it is mobile phone, is the demand bit rate for obtaining the mobile phone, otherwise the demand bit rate of the user terminal is not 512k；If The demand bit rate of the mobile phone can not be obtained, then the demand bit rate for giving tacit consent to the mobile phone is 512k.
- 2. processing method as claimed in claim 1, it is characterised in that the step for obtaining the net cast stream that code check is 512k In rapid, the net cast stream is obtained by video frequency collection card.
- 3. processing method as claimed in claim 1, it is characterised in that also include：According to the instruction of the user terminal, edit operation is carried out to the finished product video file.
- A kind of 4. processing unit of net cast stream, it is characterised in that including：Acquiring unit, it is used for：Obtain the net cast stream that code check is 512k；Intermediate video file unit, is used for：The net cast stream is spliced into complete video according to the time sequencing of broadcasting File, as intermediate video file；Judging unit, it is used for：Whether the demand bit rate for judging user terminal is 512k；Turn encapsulation unit, be used for：It is if the demand bit rate of the user terminal is 512k, the intermediate video file is direct Carry out turning the finished product video file that encapsulation process generation code check is 512k, and the finished product video file that the code check is 512k is sent out Give the user terminal；Transcoding units, it is used for：If the demand bit rate of the user terminal is not 512k, the intermediate video file is carried out Transcoding processing, generation meets the finished product video file of demand bit rate, and the finished product video file for meeting demand bit rate is sent out Give the user terminal；The judging unit, is specifically used for：Whether the terminal type for judging the user terminal is mobile phone, is to obtain the hand The demand bit rate of machine, otherwise the demand bit rate of the user terminal is not 512k；The judging unit, is additionally operable to：If can not The demand bit rate of the mobile phone is obtained, then the demand bit rate for giving tacit consent to the mobile phone is 512k.
- 5. processing unit as claimed in claim 4, it is characterised in that the acquiring unit is video frequency collection card.
- 6. processing unit as claimed in claim 4, it is characterised in that also include：Edit cell, it is used for：According to the instruction of the user terminal, edit operation is carried out to the finished product video file.
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| CN201410572786.4A CN104333765B (en) | 2014-10-23 | 2014-10-23 | A kind of processing method and processing unit of net cast stream |
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| CN104837033B (en) * | 2015-05-20 | 2018-09-25 | 腾讯科技（北京）有限公司 | A kind of information processing method and server |
| CN105898372A (en) * | 2015-12-15 | 2016-08-24 | 乐视云计算有限公司 | Live video to video-on-demand method and system |
| CN110062278A (en) * | 2019-04-12 | 2019-07-26 | 北京字节跳动网络技术有限公司 | Video data issues method, apparatus, electronic equipment and storage medium |
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| CN102883216B (en) * | 2011-07-14 | 2017-10-10 | 上海聚力传媒技术有限公司 | A kind of net cast method and apparatus |
| KR101231265B1 (en) * | 2011-10-31 | 2013-02-07 | 포항공과대학교 산학협력단 | Method and system for providing of streaming service in heterogeneous wireless networks |
| CN103036888B (en) * | 2012-12-19 | 2016-04-13 | 南京视海网络科技有限公司 | Adaptive flow media playing method and adaptive identifying unit thereof |
| CN103475901A (en) * | 2013-09-05 | 2013-12-25 | 乐视网信息技术（北京）股份有限公司 | Unified-source network video system and network video design method |
| CN103491393B (en) * | 2013-09-23 | 2016-11-23 | 华为技术有限公司 | A kind of video traffic processing method and equipment |
| CN103957469B (en) * | 2014-05-21 | 2017-09-15 | 百视通网络电视技术发展有限责任公司 | Based on the Internet video-on-demand method and system for turning encapsulation in real time |
| CN104079949B (en) * | 2014-06-26 | 2017-06-16 | 北京世纪鼎点软件有限公司 | Towards the data encapsulation method and apparatus and system of the scene adaptive of multi-screen |
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