CN106454186A - Multi-channel video recording and platform interaction method and device based on Android system - Google Patents
Multi-channel video recording and platform interaction method and device based on Android system Download PDFInfo
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- CN106454186A CN106454186A CN201610946161.9A CN201610946161A CN106454186A CN 106454186 A CN106454186 A CN 106454186A CN 201610946161 A CN201610946161 A CN 201610946161A CN 106454186 A CN106454186 A CN 106454186A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
- H04N5/77—Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television camera
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
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- Engineering & Computer Science (AREA)
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- Human Computer Interaction (AREA)
- Computer Networks & Wireless Communication (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention discloses a multi-channel video recording and platform interaction method based on an Android system. The method comprises the following steps: carrying out image signal processing on multiple channels of original video data collected in real time, and converting the data into video data in a preset format and storing the obtained video data; calling a multimedia encoder/decoder of the Android system through an application program interface, and selectively carrying out video encoding/decoding processing on one or multiple channels of video data in the preset format to obtain corresponding high-definition video data; and storing the high-definition video data into a storage device and/or uploading the high-definition video data to a cloud server in a streaming media manner. The invention also provides a multi-channel video recording and platform interaction device based on the Android system. The method and system can realize compressed playback of multi-channel videos and does not influence application of other Android applications.
Description
Technical field
The present invention relates to field of video processing, the multi-channel video more particularly to based on Android system is recorded and platform interaction
Method and device.
Background technology
Traditional video surveillance has different dividing mode, can be divided into simulation monitoring and digital supervision by signal type, press
Transmission means can be divided into wired monitoring and wireless monitor.With the development of network and computer technology, new wired network is occurred in that
Network digital video monitoring, provides the user interface of close friend, and user can realize accessing by network, by the Internet come remote control
Monitor terminal realizes image control, using embedded OS, can realize accessing by browser and arranging, at image
The selection of multicast on demand can be freely carried out after reason.Existing wireless video monitoring, replaces traditional network electricity by wireless network
Cable, the networking products based on wireless telecommunications can provide high speed bandwidth, meet the demand of wireless video monitoring.Between different networks
Wireless bridging can be passed through, the exchanging visit between network is realized, greatly reduce the cost of laying-out.Wireless monitor is applied to
The occasions such as security monitoring, medical treatment, teaching, video conference, realize high-resolution real-time video monitoring.
Android is intelligent movable operating system most hot at present, and systemic-function itself is powerful, and multimedia function supports journey
Degree is high, and the construction cycle is short, and application popularization is simple.The video monitoring system studied by this method is based on android system.
Development in mobile video monitor field is in the junior stage at present, but the disposal ability with mobile terminal, height
Clear video definition lifting, performance on mobile terminals can be close to traditional PC.
The existing technology based on mobile video monitor is mainly realized multichannel in Android terminal using playout software and is regarded
The decoding of frequency is played, and terminal is connected with video server or Video Decoder by wireless network, realizes multichannel and regard in terminal
Frequency is monitored.But, existing Android device（Mobile phone or flat board）It is only used for a road monitor video, it is impossible to realize multichannel prison
The video recording of control video and playback.
Content of the invention
Present invention is primarily targeted at providing the side that a kind of multi-channel video based on Android system is recorded and platform is interacted
Method and device, it is intended to solve existing Android device（Mobile phone or flat board）It is only used for a road monitor video, it is impossible to realize many
The video recording of road monitor video and the technical problem of playback.
For achieving the above object, the present invention provides the side that a kind of multi-channel video based on Android system is recorded and platform is interacted
Method, methods described comprises the steps：
Picture signal process is carried out to the multichannel original video data of current Real-time Collection, and is converted into the video counts of preset format
According to being stored；
The multimedia coding-decoder of Android system is called by application programming interfaces, and selects one or more is converted into presetting
The video data of form carries out video decoding process, so as to obtain corresponding HD video data；
The HD video data storage is uploaded to cloud server in storage device and/or in the streaming media.
Preferably, the multichannel original video data to current Real-time Collection carries out picture signal process, and is converted into
The step of video data of preset format is stored comprises the following specific steps that：
Original video data described in real-time reception multichannel；
The form of original video data according to each road introduces accordingly coding and decoding video storehouse and carries out video compression coding
Process；
Obtain the yuv data of original video data described in each road after compressed encoding is processed；
Text Flag information is added to the yuv data and renders process；
The yuv data after process is stored.
Preferably, the coding and decoding video storehouse includes that ffmpeg, x264 and libmpeg increase income storehouse.
Preferably, the multimedia coding-decoder for calling Android system by application programming interfaces, and select to a road
Or during multipath conversion is the step of become the video data of preset format to carry out video decoding process, application layer is by the application
Routine interface is realized selecting to regard one or more described video data for being converted into preset format via local ccf layer
Frequency decoding process.
Preferably, the application layer controls the broadcasting of local video by the application programming interfaces, so as to realize selecting
Play or single broadcasting while multichannel Streaming Media.
Preferably, select to carry out video decoding to one or more described video data for being converted into preset format described
In the step of process, the decoding process of H.264 HD video data is realized.
Preferably, described the HD video data storage is uploaded in storage device and/or in the streaming media
The step of to cloud server, comprises the following specific steps that：
Stream copy function is carried out to the HD video data；
The HD video data storage after stream copy function is uploaded in storage device and/or in the streaming media
Cloud server.
Preferably, the step by the HD video data storage in storage device is comprised the following specific steps that：
The content of HD video data described in multichannel is merged, is formed and integrate stream；
Integrate, by described, the file destination output that circulation changes preset format into；
The file destination is stored in storage device.
A kind of according to the above-mentioned device for supporting multi-channel video to record and interact with platform based on Android system, including：Video
Format converting module, for carrying out picture signal process to the multichannel original video data of current Real-time Collection, and is converted into pre-
If the video data of form；Video storage modules, have been converted into the video data of preset format for storage；Video processing
Module, for optionally calling one or more to be converted into the video data of preset format, and by Android system
Multimedia coding-decoder carries out video decoding process, and obtains corresponding HD video data；Video interactive module, for inciting somebody to action
The HD video data storage is uploaded to cloud server in storage device and/or in the streaming media.
Preferably, the video processing module includes：Video calling module, for being called by the application programming interfaces
Have been converted into one or more described video data of preset format；Video decoding module, for being connect by the application program
Mouth calls the multimedia coding-decoder of Android system, and using the multimedia coding-decoder to an invoked road or multichannel
The video data is decoded processing；Video sending module, for being decoded the video by the application programming interfaces
The decoded video data transmitting of module delivers to application layer.
Beneficial effect achieved by the present invention：The multi-channel video based on Android system record and platform interaction method and
In device, the APP of the application layer carries out information exchange so as to reality by the application programming interfaces with the local ccf layer
Now the selectivity of the video data is processed, the side that therefore multi-channel video based on Android system is recorded and platform is interacted
Method and device not only can be realized the compression of multi-channel video and play back, and have no effect on the use of other ARIXTRA applications, Jin Eryong
The performance of the Android system is made full use of, provides the user with complete function selecting.
And, the method and device that the multi-channel video based on Android system is recorded and platform is interacted is also by after process
Video file is uploaded to cloud server, so as to realize the platform interactive function between the Android system and cloud server,
And then realize the function of remote monitoring.
Description of the drawings
Fig. 1 is the stream of the method that the multi-channel video based on Android system provided in an embodiment of the present invention is recorded and platform is interacted
Journey block diagram；
Fig. 2 is that the flow process of the method that the multi-channel video based on Android system provided in an embodiment of the present invention is recorded and platform is interacted is shown
It is intended to；
Fig. 3 is the structure of the device for supporting multi-channel video recording and platform interaction based on Android system provided in an embodiment of the present invention
Block diagram.
The realization of the object of the invention, functional characteristics and advantage will be described further in conjunction with the embodiments referring to the drawings.
Specific embodiment
It should be appreciated that specific embodiment described herein is not intended to limit the present invention only in order to explain the present invention.
It is that the multi-channel video based on Android system provided in an embodiment of the present invention is recorded referring to Fig. 1 and Fig. 2, Fig. 1
And the FB(flow block) of the method for platform interaction, Fig. 2 is that the multi-channel video based on Android system provided in an embodiment of the present invention is recorded
And the schematic flow sheet of the method for platform interaction.The method bag that the multi-channel video based on Android system is recorded and platform is interacted
Include following steps：
Step S10, carries out picture signal process to the multichannel original video data of current Real-time Collection, and is converted into preset format
Video data stored.
In step S10, by multiple photographic head while real-time video is gathered, and gathering the real-time video
Meanwhile, the original video data for collecting is sent to Android device.That is, the Android device can be connect simultaneously
Receive original video data described in the multichannel by multiple photographic head Real-time Collections.And, the Android device receives many
After original video data described in road, just enter row format conversion to each original video data, and will convert into described default
The video data of form is directly stored, in case the Android system is called.Preferably, the video of the preset format
Data are yuv datas.
Specifically, in the present embodiment, step S10 comprises the steps：
Original video data described in real-time reception multichannel；
The form of original video data according to each road introduces accordingly coding and decoding video storehouse and carries out video compression coding
Process；
Obtain the yuv data of original video data described in each road after compressed encoding is processed；
Text Flag information is added to the yuv data and renders process；
The yuv data after process is stored.
Selectively, original video data described in multichannel can come from the different types of photographic head, and for example, CVBS takes the photograph
As head, MIPI photographic head and USB camera etc., the present invention is not limited to this.It should be appreciated that the photographic head of each type of correspondence
The form of the original video data for being obtained simultaneously is differed, it is therefore desirable to the lattice of original video data according to each road
Formula introduces accordingly coding and decoding video storehouse and carries out video compression coding process.Selectively, the coding and decoding video storehouse includes
Ffmpeg, x264 and libmpeg increase income storehouse etc..
And, in step S10, using the coding and decoding video storehouse, the original video data is compressed compiling
The process of code is specifically included：
First, the collection of video data, the yuv data for collecting is sampled；
2nd, frame data are predicted with coding, using intraframe predictive coding, spatial redundancy are reduced to key frame, to non-key frame
Time redundancy is reduced using inter prediction encoding；
3rd, by the entropy code of prediction residual, reduce code check.
Further, in order to process to original video data described in multichannel simultaneously, then compressed encoding process is being obtained
Afterwards after the yuv data of original video data described in each road, Text Flag information is added to the yuv data and renders place
Reason, the identification so as to realize between the yuv data of original video data described in multichannel is distinguished.
And, in order to obtain real-time video data, by the yuv data real-time storage after process in storage device
In, for example, the internal memory of mobile terminal or hard disk etc., the present invention is not limited to this.In the present embodiment, Real-time Collection multichannel institute
Original video data is stated, and picture signal process is carried out to the original video data, so as to obtain the yuv data.And,
After the yuv data is obtained, deposit standby in storage device for the yuv data real-time storage, wait by the Android system
According to the instruction of application layer and selectivity is called.Therefore, the video data that the Android system is called by the application layer can
With the video information comprising the photographic head Real-time Collection all the time.
Step S20, is called the multimedia coding-decoder of Android system, and selects to a road or many by application programming interfaces
Road is converted into the video data of preset format and carries out video decoding process, so as to obtain corresponding HD video data.
Specifically, in step S20, by the local ccf layer of the Android system（Native layer）Application is provided
Routine interface（API）Information exchange is realized with the APP of application layer.In the present embodiment, the application layer is by the application journey
Sequence interface is realized selecting to carry out one or more described video data for being converted into preset format via the local ccf layer
Video decoding process, and, the application layer can also control the broadcasting of local video by the application programming interfaces, so as to
Realize selecting playing or single broadcasting while multichannel Streaming Media, and then the HD video of recording is delivered to decoder and broadcast
Putting, the functions such as preview, monitor in real time, playback is realized in client.
That is, the APP of the application layer can be by the application programming interfaces via the local framework layer choosing
The video data on each road or a few roads is called to selecting property, is recorded while so as to realize multi-path camera, and multichannel is taken the photograph
The encapsulation integration function of video acquisition, compressed encoding, image preview and multichannel flow data as head.
And, call the multimedia coding-decoder of Android system to enter the video data by the application programming interfaces
Row decoding process, can play the decoding performance of system to greatest extent by using the hardware decoder of Android system.It is preferred that
Ground, in step S20, the hardware decoder of the Android system realizes the decoding process of H.264 HD video data.
The APP for being additionally, since the application layer enters row information by the application programming interfaces with the local ccf layer
Interaction is processed so as to realize the selectivity to the video data, then so that the android terminal is except carrying out multi-channel video monitor
Beyond function, the ability also having more than needed carries out the process of other application；And when other applications are carried out, multi-channel video monitor
Can also continue to run with backstage.
It should be appreciated that step S20 can include that step is played in video Selection and call step and video decoding.Specifically
Ground, the video invocation step may include steps of：
The video call instruction of the APP receiving user's input of the application layer；
The APP of the application layer is sent the video call instruction to the local framework by the application programming interfaces
Layer；
The local ccf layer is according to the video call instruction calls the road or multichannel that store in step slo
Yuv data.
Wherein, the yuv data is a kind of colour coding method for being adopted by eurovision system, for optimizing colour
The transmission of ornaments signal.If be color coded to coloured image using the yuv data, the brightness letter of Y representative image
Number, that is, grey decision-making；The carrier chrominance signal of U and V representative image, for describing colors of image and saturation, and then specified pixel
Color.
The video decoding is played step and be may include steps of：
The application layer calls the multimedia coding-decoder of Android system by the application programming interfaces；
The multimedia coding-decoder receives an invoked road or yuv data described in multichannel, and the yuv data is carried out
Decoding process, so as to obtain HD video data, but also by the HD video data feedback to the local ccf layer；
The decoded HD video data is activation is answered to described by the local ccf layer by the application programming interfaces
With layer, and played out by the player of the application layer.
Step S30, the HD video data storage is uploaded to cloud in storage device and/or in the streaming media
End server.
Specifically, step S30 is comprised the following specific steps that：
Stream copy function is carried out to the HD video data；
The HD video data storage after stream copy function is uploaded in storage device and/or in the streaming media
Cloud server.
In the present embodiment, the HD video data can be directly stored in storage device, the SD of such as mobile terminal
Card, disk, hard disk etc., the present invention is not limited to this.If the HD video data are directly stored in storage device, wrap
Include following steps：
The content of HD video data described in multichannel is merged, is formed and integrate stream；
Integrate, by described, the file destination output that circulation changes preset format into；
The file destination is stored in storage device.
Selectively, the file destination is the file of MP4 form.Certainly, it is not limited in the present embodiment, the target text
Part can also be the file of other video formats such as AVI format, rmvb form, 3GP.
If the HD video data are uploaded to cloud server in the streaming media, can pass through described in real-time performance
Platform interactive function between Android system and cloud server.
Refer to Fig. 3, be based on shown in Fig. 1 based on Android system support multi-channel video record and with platform exchange method
The structured flowchart of device.Described device includes video format modular converter 10, video storage modules 20,30 and of video processing module
Video interactive module 40.
The video format modular converter 10 is used for carrying out image letter to the multichannel original video data of current Real-time Collection
Number process, and be converted into the video data of preset format.Preferably, the video data of the preset format is yuv data.
Specifically, the video format modular converter 10 is while receive the multichannel by multiple photographic head Real-time Collections
The original video data, and row format conversion is entered to each original video data, convert thereof into the preset format
Video data directly carry out being stored in the video storage modules 20, in case the Android system is called.
Wherein, carry out in video format transformation process in the video format modular converter 10, due to each type of correspondence
The form of the original video data that obtained of photographic head and differ, therefore 10 basis of video format modular converter
The form of original video data described in each road introduces accordingly coding and decoding video storehouse and carries out video compression coding process.Optional
Ground is selected, the coding and decoding video storehouse includes that ffmpeg, x264 and libmpeg increase income storehouse etc..
The video storage modules 20 have been converted into the video data of preset format for storage.Selectively, institute
Internal memory or hard disk that video storage modules 20 can be mobile terminal is stated, the present invention is not limited to this.
Specifically, the YUV that video format modular converter 10 described in 20 real-time storage of the video storage modules is converted to
Data.That is, the video information of 20 memory storage of the video storage modules is the video of the photographic head Real-time Collection obtaining
The yuv data for arriving.
The video processing module 30 is used for optionally calling one or more to be converted into the video of preset format
Data, and video decoding process is carried out by the multimedia coding-decoder of Android system, and obtain corresponding HD video number
According to.
Specifically, the video processing module 30 includes：Video calling module 31, Video decoding module 32 and video send
Module 33.Wherein, the video calling module 31 is used for calling by the application programming interfaces having been converted into preset format
One or more described video data.The Video decoding module 32 is used for calling Android system by the application programming interfaces
Multimedia coding-decoder, and using the multimedia coding-decoder, an invoked road or video data described in multichannel are entered
Row decoding process.The video sending module 33 is used for decoding the Video decoding module 32 by the application programming interfaces
Video data transmitting deliver to application layer, so as to be played out by the player of the application layer.
In the present embodiment, the video calling module 31 is used for realizing the video selection tune of the video processing module 30
Use function.Specifically, the video call instruction that the video calling module 31 is received according to the APP of the application layer, from
And realize optionally calling yuv data described in a road or multichannel.And the video calling module 31 is also by described
Ground ccf layer sends an invoked road or yuv data described in multichannel to the video processing module 30.
The video processing module 32 is used for realizing the video decoding playing function of the video processing module 32.Specifically
Ground, the video processing module 32 receives a road of body frame floor transmission or yuv data described in multichannel, and to described
Yuv data is decoded processing, so as to obtain HD video data, but also by the HD video data feedback to described
Body ccf layer.Selectively, the video processing module 32 can be the Android system software decode module, or
The hardware decoder of the Android system, the present invention is not limited to this.
The video interactive module 40 is used for by the HD video data storage in storage device and/or with Streaming Media
Mode be uploaded to cloud server.Selectively, the screen interactive module 40 can be selected the HD video data
It is directly stored in storage device, the SD card of such as mobile terminal, disk, hard disk etc., the present invention is not limited to this；The screen
Interactive module 40 is uploaded to cloud server in the streaming media it is also possible that stating HD video data, so as to pass through network
Realize the platform interactive function between the Android system and cloud server.
Compared to prior art, the multi-channel video recording based on Android system and the method for platform interaction that the present invention is provided
In, it is right so as to realize that the APP of the application layer carries out information exchange by the application programming interfaces and the local ccf layer
The selectivity of the video data is processed, therefore the multi-channel video based on Android system record and platform interaction method and
Device not only can be realized the compression of multi-channel video and play back, and have no effect on the use of other ARIXTRA applications, and then with fully
Using the performance of the Android system, complete function selecting is provided the user with.
And, the method that the multi-channel video based on Android system is recorded and platform is interacted is also by the video file after process
Cloud server is reached, so as to the platform interactive function between the Android system and cloud server is realized, and then is realized remote
The function of range monitoring.
The preferred embodiments of the present invention are these are only, the scope of the claims of the present invention is not thereby limited, every using this
Equivalent structure or equivalent flow conversion that bright description and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of method that multi-channel video based on Android system is recorded and platform is interacted, it is characterised in that methods described includes
Following steps：
Picture signal process is carried out to the multichannel original video data of current Real-time Collection, and is converted into the video counts of preset format
According to being stored；
The multimedia coding-decoder of Android system is called by application programming interfaces, and selects one or more is converted into presetting
The video data of form carries out video decoding process, so as to obtain corresponding HD video data；
The HD video data storage is uploaded to cloud server in storage device and/or in the streaming media.
2. the method for claim 1, it is characterised in that the multichannel original video data to current Real-time Collection is entered
Row picture signal is processed, and is converted into the step of video data of preset format is stored and is comprised the following specific steps that：
Original video data described in real-time reception multichannel；
The form of original video data according to each road introduces accordingly coding and decoding video storehouse and carries out video compression coding
Process；
Obtain the yuv data of original video data described in each road after compressed encoding is processed；
Text Flag information is added to the yuv data and renders process；
The yuv data after process is stored.
3. method as claimed in claim 2, it is characterised in that the coding and decoding video storehouse include ffmpeg, x264 and
Libmpeg increases income storehouse.
4. the method for claim 1, it is characterised in that many matchmakers for calling Android system by application programming interfaces
Body codec, and select to carry out one or more video data for being converted into preset format the step of video decoding process
In rapid, application layer is realized selecting one or more is converted into presetting lattice via local ccf layer by the application programming interfaces
The video data of formula carries out video decoding process.
5. method as claimed in claim 4, it is characterised in that the application layer is local by the application programming interfaces control
The broadcasting of video, plays or single broadcasting while so as to realize selecting multichannel Streaming Media.
6. method as claimed in claim 4, it is characterised in that select to be converted into preset format to one or more described
In the step of video data carries out video decoding process, the decoding process of H.264 HD video data is realized.
7. the method for claim 1, it is characterised in that described by the HD video data storage in storage device
And/or comprise the following specific steps that the step of be uploaded to cloud server in the streaming media：
Stream copy function is carried out to the HD video data；
The HD video data storage after stream copy function is uploaded in storage device and/or in the streaming media
Cloud server.
8. method as claimed in claim 7, it is characterised in that described by the HD video data storage in storage device
The step of comprise the following specific steps that：
The content of HD video data described in multichannel is merged, is formed and integrate stream；
Integrate, by described, the file destination output that circulation changes preset format into；
The file destination is stored in storage device.
9. a kind of device for supporting multi-channel video to record and interact with platform based on Android system, it is characterised in that include：
Video format modular converter, for carrying out picture signal process to the multichannel original video data of current Real-time Collection, and
It is converted into the video data of preset format；
Video storage modules, have been converted into the video data of preset format for storage；
Video processing module, for optionally calling one or more to be converted into the video data of preset format, and leads to
The multimedia coding-decoder for crossing Android system carries out video decoding process, and obtains corresponding HD video data；
Video interactive module, for by the HD video data storage in storage device and/or in the streaming media
Reach cloud server.
10. device as claimed in claim 9, it is characterised in that the video processing module includes：
Video calling module, for called by the application programming interfaces have been converted into preset format one or more described in
Video data；
Video decoding module, for being called the multimedia coding-decoder of Android system by the application programming interfaces, and is utilized
The multimedia coding-decoder is decoded processing to an invoked road or video data described in multichannel；
Video sending module, for passing through the application programming interfaces by decoded for Video decoding module video data transmitting
Deliver to application layer.
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| WO2019063013A1 (en) * | 2017-09-30 | 2019-04-04 | 中兴通讯股份有限公司 | Method for playing multiple videos on mobile terminal, mobile terminal, and readable storage medium |
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| CN110933470A (en) * | 2019-11-29 | 2020-03-27 | 杭州当虹科技股份有限公司 | Video data sharing method |
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