CN105872441A - Video communication method and device - Google Patents
Video communication method and device Download PDFInfo
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- CN105872441A CN105872441A CN201610028606.5A CN201610028606A CN105872441A CN 105872441 A CN105872441 A CN 105872441A CN 201610028606 A CN201610028606 A CN 201610028606A CN 105872441 A CN105872441 A CN 105872441A
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- video
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
- H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
Abstract
The invention discloses a video communication method and device. The method comprises the following steps of collecting terminal information and network information; obtaining a first video parameter according to at least one of the terminal information and the network information; carrying out video recording according to the first video parameter; and carrying out video transmission according to the first video parameter. The device comprises an information collection module used for collecting the terminal information and the network information, a video parameter obtaining module connected to the information collection module and used for obtaining the first video parameter according to at least one of the terminal information and the network information, a video recording module connected to the video parameter obtaining module and used for carrying out video recording according to the first video parameter, and a transmission control module connected to the video parameter obtaining module and the video recording module and used for carrying out video transmission according to the first video parameter. According to the video communication method, recording and transmission of the video can be adaptively adjusted according to the state of the terminal and the access network, so that the quality of video communication is improved.
Description
Technical field
The present invention relates to communication technical field, particularly to a kind of video communication method and device.
Background technology
Along with the development of communication technology, terminal the most solely provides voice service, video communication
Become a kind of mode that user is used more and more.
Video communication is often referred to: hold based on the Internet and mobile Internet (such as 3G the Internet),
By transmitting voice and the image (e.g., the bust of people, photo, article etc.) of people between terminal in real time
A kind of communication mode.According to the difference of terminal, video communication is generally divided into four kinds of modes:
PC-to-PC, PC-to-Phone, Phone-to-PC and Phone-to-Phone via Internet.
When carrying out video communication, there are two comparison units that are crucial and that affect video communication quality
Device: photographic head and display screen, wherein, camera collection video data, mike gathers audio frequency
Data.The video data collected and voice data are encoded by terminal according to set agreement,
With certain code check, video data and voice data are sent again, transmit via network, by regarding
The opposite end (that is, another terminal) of frequency communication receives, and will receive video data and audio frequency number
It is decoded according to according to set agreement, is finally shown by display screen.
In video communication service, along with various mobile terminals (such as mobile phone, panel computer etc.)
Adding market, the mobile terminal of video communication participant is more and more diversified.The use of video communication
Family is experienced to be affected by video parameter (such as resolution).Traditional low-resolution video communications
Can not meet the demand of user, when user is expected to the performance permission of mobile terminal, adopted
With the most high-resolution video image.
It addition, the Netowrk tape of the network that video communication is relied on (such as, 2G/3G/WLAN etc.)
Wide different with data throughout, network transfer speeds is also the most different.Current video communication is typically
Fixing transformat is used to carry out transmitting video data, when network type changes, with this
Mode carrys out transmitting video data, not only consumes substantial amounts of data traffic, and can cause video figure
The definition of picture is the highest, even results in picture card and pauses.
Further, different owing to participating in the configuration of two mobile terminals of video communication, example
As, the resolution of display screen is different, and the resolution of photographic head is different, and this is it is possible to lead
Cause the resolution carrying out the photographic head of a mobile terminal of the video communication mobile terminal with opposite end
The resolution of display screen is not mated.As a result, video image display on the display screen of opposite end is caused
Incomplete, even because not shown by the display screen support of opposite end.
Summary of the invention
The technical problem to be solved in the present invention is, for the deficiencies in the prior art, it is provided that one regards
Frequently communication means and system, the recording of the video being adaptively adjusted in video communication and transmission,
Improve the quality of video communication.
In order to solve above-mentioned technical problem, according to an aspect of the present invention, the invention provides one
Plant video communication method, including:
Acquisition terminal information and the network information；
Obtain first according at least one category information in described end message and the described network information to regard
Frequently parameter；
Video record is carried out according to described first video parameter；With,
Transmission of video is carried out according to described first video parameter.
Alternatively, carrying out video record according to described first video parameter, and according to described first
After video parameter carries out transmission of video and before video communication terminates, when the update cycle arrives,
Also include:
At least one category information in acquisition terminal information and the network information；
Obtain the most more according at least one category information in described end message and the described network information
Second video parameter in new cycle；
Video record is carried out according to second video parameter of described current update cycle, and/or, press
The second video parameter according to the described current update cycle carries out transmission of video.
Alternatively, carrying out video record according to second video parameter of described current update cycle,
And/or, before carrying out transmission of video according to second video parameter of described current update cycle, also wrap
Include:
Calculate between the second video parameter and the currently used video parameter of current update cycle
Difference；
Then carry out video record according to second video parameter of described current update cycle, and/or,
Carrying out transmission of video according to second video parameter of described current update cycle is:
If the absolute value of described difference is equal to or more than the first threshold preset, then work as according to described
Second video parameter of front update cycle carries out video record, and/or, according to described current renewal week
Second video parameter of phase carries out transmission of video.
Wherein, also include in aforementioned schemes:
If the absolute value of described difference is less than the first threshold preset, then continue according to currently used
Video parameter carry out video record, and, carry out transmission of video according to currently used video parameter.
Alternatively, described end message includes: the real time status information of local terminal.Wherein, institute
The real time status information stating local terminal includes: main board work frequency, mainboard temperature, battery electric quantity
With at least one in available dynamic memory capacity.
Alternatively, described end message also includes the hardware letter realizing the distant terminal of video communication
Breath；
The hardware information gathering the distant terminal realizing video communication is: receives the described video that realizes and leads to
The hardware letter of the described distant terminal realizing video communication that the distant terminal of letter is sent by network
Breath.Wherein, the hardware information of the described distant terminal realizing video communication includes: described realization regards
The resolution of the display screen of the distant terminal of frequency communication.
Alternatively, the described network information includes: at least one in network type and network throughput.
Alternatively, in described video communication method, obtain video parameter in the following way,
Described video parameter is the first video parameter and/or the second video parameter:
The mapping table prestored according to the information inquiry collected, obtains video parameter；Described prestore
Mapping table in maintain the mapping between described end message and the described network information and video parameter
Relation；
Wherein, when video parameter is the first video parameter, described in the information that collects be terminal
Information and the network information, when video parameter is the second video parameter, described in the information that collects
For at least one category information in end message and the network information.
Alternatively, in described video communication method, the information inquiry according to collecting prestores
Mapping table, including:
According to default described end message and the priority orders of the described network information, will adopt successively
Collect the various information and respective reference comprised in the described end message and the described network information obtained
Threshold value compares seriatim；
If any one comprised in the described end message collected and the described network information
Information, less than corresponding reference threshold, is less than information and the video of corresponding reference threshold according to numerical value
The mapping relations of parameter, obtain video parameter from the described mapping table prestored.
Alternatively, in aforesaid video communication method, also include: if collect is described
The various information comprised in end message and the described network information are both greater than or equal to respective with reference to threshold
Value, according to default described end message and the weight of the described network information, calculating collects
Described end message and the weighted mean of the described network information；
According to the described described end message collected and the weighted mean of the described network information
The mapping table that inquiry prestores, obtains video parameter；The described mapping table prestored maintains described end
Mapping relations between client information and the weighted mean of the described network information and video parameter.
Alternatively, in described video communication method, according to described end message and described network
At least one category information in information obtains second video parameter of current update cycle, including:
According to default described end message and the weight of the described network information, calculating collects
The weighted mean of all kinds information；
Relatively described weighted mean and the size of default Second Threshold；
If described weighted mean is more than or equal to described default Second Threshold, add according to described
Weight average value inquires about the mapping table prestored, and obtains second video parameter of described current update cycle；
The described mapping table prestored maintains at least one class in described end message and the described network information
Mapping relations between weighted mean and described second video parameter of information.
In order to solve the deficiencies in the prior art, according to a further aspect in the invention, the present invention also provides for
A kind of video communication device, including:
Information acquisition module, for acquisition terminal information and the network information；
Video parameter acquisition module, is connected with described information acquisition module, for according to described terminal
At least one category information in information and the described network information obtains the first video parameter；
Video record module, is connected with described video parameter acquisition module, according to described first
Video parameter carries out video record；With
Transmission control module, is connected with described video parameter acquisition module and described video record module
Connect, carry out transmission of video according to described first video parameter.
Alternatively, described video communication device also includes:
Time block, is carrying out video record for providing according to described first video parameter, and is pressing
According to described first video parameter carry out transmission of video after and before video communication terminates, described
Information acquisition module periodically acquisition terminal information and the network information, described video parameter obtain mould
Block periodicity ground obtains the update cycle of the second video parameter.
Alternatively, in aforesaid video communication device, also include:
Video parameter contrast module, with described video parameter acquisition module, described video record module
It is connected with described transmission control module；For calculate second video parameter of current update cycle with
The currently used difference between video parameter；
If the absolute value of described difference is equal to or more than the first threshold preset, will currently update week
Second video parameter of phase is sent to described video record module and described transmission control module, presses
The second video parameter according to the described current update cycle carries out video record, and/or, work as according to described
Second video parameter of front update cycle carries out transmission of video.
Alternatively, described video parameter acquisition module includes:
Memory element, for storage system maintenance, described end message and the described network information are joined with video
The mapping table of mapping relations between number, described video parameter is the first video parameter and/or the second video
Parameter；And
Query unit, for according to mapping table described in the information inquiry collected, to obtain video
Parameter.
Alternatively, described memory element also stores the excellent of described end message and the described network information
First level, described video parameter acquisition module also includes:
Comparing unit, for according to the priority orders preset, the described end that will collect successively
The various information comprised in client information and the described network information are carried out seriatim with respective reference threshold
Relatively；If any one comprised in the described end message collected and the described network information
Information, less than corresponding reference threshold, sends inquiry notice to described query unit；
Described query unit is according in described inquiry notice, and numerical value is less than the information of corresponding reference threshold
With the mapping relations of video parameter, inquire about described mapping table, obtain from the described mapping table prestored
Video parameter.
Alternatively, described memory element also stores the pre-of described end message and the described network information
If weight, described mapping table maintains the mapping between data weighted average value and described video parameter
Relation；Described video parameter acquisition module also includes:
Weighted mean computing unit, according to default weight, calculates all information collected
Weighted mean, and described weighted mean is sent to described query unit；
Described query unit inquires about mapping table according to described data weighted average value, prestores from described
Mapping table obtains video parameter.
Alternatively, in described video communication device, described video parameter acquisition module can also wrap
Include:
Memory element, for storing the default weight of described end message and the described network information, and
For safeguarding the mapping table of the mapping relations between weighted mean and video parameter, described video is joined
Number is the second video parameter；
Weighted mean computing unit, according to default weight, calculates all kinds collected
The weighted mean of information；
Comparing unit, relatively described weighted mean and the size of default Second Threshold, add when described
When weight average value is more than described Second Threshold, send inquiry notice to query unit；With
Query unit, for according to the weighted mean in the inquiry notice received, inquiry prestores
Mapping table, obtain second video parameter of described current update cycle.
The present invention, according to terminal and the state of access network, is adaptively adjusted recording and the biography of video
Defeated video parameter, so that video image keeps relative preferably quality when recording with transmission,
Thus improve the quality of video communication.
Accompanying drawing explanation
By description to the embodiment of the present invention referring to the drawings, the present invention above-mentioned and other
Objects, features and advantages will be apparent from, in the accompanying drawings:
Fig. 1 is embodiment one flow chart of video communication method of the present invention；
Fig. 2 be video communication method of the present invention embodiment one in video parameter acquisition process stream
Cheng Tu；
Fig. 3 is embodiment two flow chart of video communication method of the present invention；
Fig. 4 is the theory diagram of video communication device one embodiment of the present invention；
Fig. 5 is the theory diagram of another embodiment of video communication device of the present invention；
Fig. 6 is the structural principle block diagram of the embodiment one of video parameter acquisition module in the present invention；
Fig. 7 is the structural principle block diagram of the embodiment two of video parameter acquisition module in the present invention；
Fig. 8 is the structural principle block diagram of the embodiment three of video parameter acquisition module in the present invention；With
Fig. 9 is the structural principle block diagram of the embodiment three of video parameter acquisition module in the present invention.
Detailed description of the invention
Below based on embodiment, present invention is described, but the present invention is not restricted to these
Embodiment.In below the details of the present invention being described, detailed describe some specific detail portion
Point.The description not having these detail sections for a person skilled in the art can also understand this completely
Invention.In order to avoid obscuring the essence of the present invention, known method, process, flow process are the most in detail
Narration.Additionally accompanying drawing is not necessarily drawn to scale.
Flow chart in accompanying drawing, block diagram illustrate the system of the embodiment of the present invention, method, device
Possible System Framework, function and operation, the square frame on flow chart and block diagram can represent a mould
Block, program segment or only one section of code, described module, program segment and code are all used to realize
The executable instruction of regulation logic function.It should also be noted that described realize regulation logic function can
Perform instruction can reconfigure, thus generate new module and program segment.Therefore the square frame of accompanying drawing
And square frame order is used only to preferably illustrate process and the step of embodiment, and should not make with this
For the restriction to invention itself.
As it is shown in figure 1, be the brief of a specific embodiment of video communication method of the present invention
Flow chart.Originally practicing at the beginning of video communication, such as, calling terminal has sent video communication please
Ask, or called end receives video communication request, just starts to build between calling terminal and called end
The sight of vertical video communication.The method that the present invention provides comprises the following steps:
Step Sa1, communication terminal acquisition terminal information and the network information.
Wherein, described end message includes the real time status information of local terminal and the hard of distant terminal
Part information.Specifically, the real time status information of described local terminal includes main board work frequency, master
At least one in plate temperature, battery electric quantity and available dynamic memory capacity.Wherein, in,
Main board work frequency is the dominant frequency of CPU, in order to the performance of decision systems.Owing to video calling is compared
More power consumption for other programs run in terminal, then can cause the rising of terminal mainboard temperature,
And this problem can be solved by reducing systematic function.So that it is current according to terminal mainboard
Temperature decides whether to need due to temperature drift to reduce performance.Can be with dynamically depositing by current residual
Reservoir (RAM) understands the performance height of current system, such as system response speed and resources occupation rate etc..
The hardware information of distant terminal includes the display screen of the described distant terminal realizing video communication
Resolution.The hardware information gathering the distant terminal realizing video communication is: receive described realization
The described distant terminal realizing video communication that the distant terminal of video communication is sent by network hard
Part information.
Its described network information includes the handling capacity of network type and network.It is commonly used for video
Communication network type include GSM (Global System for Mobile Communications,
Global system for mobile communications), CDMA (Code Division Multiple Access, CDMA),
W-CDMAUMTS (Universal Mobile Telecommunications System, General Mobile
Communication system), CDMA2000 and TD-SCDMA (Time Division-Synchronous CDMA),
(Enhanced Data rate for GSM Evolution strengthens the GSM of data rate to EDGE
Evolution), GPRS (General Packet Radio Service, general packet radio service),
The connec-tionless network such as WIFI or LTE (i.e. 4G).
When the handling capacity (number that i.e. unit interval can transmit determining network type and current network
According to amount (bit/s), it is also possible to be referred to as network speed), just can as condition select corresponding resolution,
Video compress ratio, frame per second and code check etc..Such as, when network speed is fast when, it is possible to use low
Video compress ratio, high-resolution (e.g., the form of high definition)；When network speed is slow when, it is possible to
Use high video compress ratio, low resolution (e.g., SD or the form of more low resolution).
Wherein, about aforesaid high-definition format and SD form, according to the standard of radio and television, will
" high definition (High Definition) " is defined as 720p, 1080i and tri-kinds of canonical forms of 1080p.
" SD (Standard Definition) " is the physical resolution a kind of video at below 720p
Form.
Step Sa2, according to described end message and/or the described network information, it is thus achieved that video record and
The first video parameter required for transmission, such as resolution etc..
About the acquisition of video parameter, in the method embodiment, use a specific embodiment
(for convenience of distinguishing with following embodiment, hereon referred to as embodiment one), by inquiry memory element
The mapping table prestored, in this mapping table, records described end message and the network information and video
The corresponding relation of parameter, thus, when there is known described end message and the network information or two category informations
In any one, just can obtain required video parameter by tabling look-up.
After determining the first video parameter of video record and transmission, in step Sa3, set up double
Video communication link between side.
Step Sa4, carries out the recording of video according to the first video parameter obtained.
Step Sa5, carries out the transmission of video according to the first video parameter obtained.
About the acquisition of video parameter in step Sa2, it is also possible to by the method in following example
Obtain:
Embodiment two, weighted average method.Particularly as follows: prestore end message in the memory unit
Or the weight of the network information, for the multiple information gathered, such as end message or the network information, root
According to described default weight, calculate the weighted mean of all collection information, in the memory unit,
Also prestoring a mapping table, this mapping table describes the corresponding relation of weighted mean and video parameter.
When known weights meansigma methods, required video parameter just can be obtained by tabling look-up.
Embodiment three, priority method.Prestore in the memory unit and compare priority, according to presetting
Described end message and the priority orders of the described network information, successively by collected information with
Its respective reference threshold compares one by one, such as the reference threshold less than correspondence of any one information
Value, when having in comparative result less than its corresponding threshold value, according to numerical value less than corresponding reference threshold
The information of value and the mapping relations of video parameter, obtain video parameter from the described mapping table prestored.
Such as, for network type, network throughput, main board work frequency, mainboard temperature, battery electricity
Amount and available these several information of dynamic memory capacity, compare the order of priority from first to rear point
Wei battery electric quantity, network throughput, available dynamic memory capacity, network type, mainboard
Temperature, main board work frequency, relatively time, first comparative cell electricity and its reference threshold,
In the present embodiment, the reference threshold of each described information is used for weighing whether this information current be enough to
Affect video communication quality, if currently this information is less than its reference threshold, illustrate according to this information
Just can change and determine new video parameter.If battery electric quantity is less than its reference threshold, then stop
Only comparing, according to the mapping relations of battery electric quantity Yu video parameter, inquiry obtains new in the mapping table
Video parameter.If battery electric quantity is more than or equal to its reference threshold, then continues comparing cell and gulp down
The amount of telling and its reference threshold, by that analogy, until having compared all information collected.
The present invention can also obtain video parameter in conjunction with priority method and weighted average method.Such as figure
Embodiment shown in 2, the stream of specific embodiment that a kind of video parameter provided for the present invention obtains
Cheng Tu, method, specific as follows:
Step Sb1, according to default priority, takes the information collected, such as battery surplus
Remaining this information of electricity.
Step Sb2, comparative cell dump energy and the size of its reference threshold, remain if working as forebay
Remaining electricity, less than its reference threshold, illustrates that now battery dump energy is little, the most logical in order to ensure
Letter, then need not consider further that the concrete data of other information, just may determine that and needs to come by low resolution
Recorded video, therefore, forwards step Sb6 to.
Step Sb6, according to the mapping relations of battery dump energy Yu video parameter, in the mapping table
The video parameter that inquiry is recorded accordingly and transmitted.
Step Sb3, if when forebay dump energy is more than or equal to its reference threshold, it may be judged whether
All information collected are the most complete, arrive if it did not, repeat step Sb1
Sb3, until all of information is the most complete.
Step Sb4, if all information is both greater than its respective reference threshold, then according to default
Weight, calculates the weighted mean of all information.
Step Sb5, according to the mapping relations of weighted mean Yu video parameter, looks into from mapping table
Inquiry is recorded accordingly and is transmitted video parameter.
In above-mentioned steps Sb2, when a certain information is less than its reference threshold, it is sufficient to how determine use
When planting recording and the transmission that video parameter carries out video, then need not again other information be compared
Relatively, i.e. stop comparing.As a example by battery dump energy, if be detected that now the residue of battery is electric
Measure the lowest, now need not consider further that the data of other information, just may determine that and now need application
Low resolution carrys out recorded video.Thus avoid unnecessary calculating, both saved system resource,
Also improve processing speed.
About how to determine video parameter to be used by the information collected, these are only this
The embodiment that invention provides, those skilled in the art can also use various method to determine one
Preferably scheme, as use Delphi method (expert estimation), AHP method (step analysis), more than
The combination of two kinds of methods, factorial analysis flexible strategy method, quantity of information flexible strategy method or independence flexible strategy method etc..
Owing to these methods are known in the art technology, thus do not repeat them here.
After video communication is set up, in addition it is also necessary to periodically repeat acquisition step, acquisition regards
Frequently parameter step, carry out the step of video record according to video parameter and according to described video
Parameter carries out the step of Network Video Transmission.Thus in video communication, dynamically change video
Record and the video parameter of transmission so that the listener in video communication receives in present case
The most optimal video image.The flow chart of concrete embodiment as shown in Figure 3.
Step Sc1, carries out video record and transmission according to the video parameter determined before.
Step Sc2, it may be judged whether arriving timing, this is a update cycle of inner setting,
Without arriving timing, i.e. it is less than the next update cycle, then continues step Sc1,
If timing arrives, then carry out step Sc3.
Step Sc3, acquisition terminal information and the network information.
Step Sc4, regards according to the second of end message and/or network information acquisition current update cycle
Frequently parameter.About the acquisition of second video parameter of current update cycle, can use above-mentioned various
Method, is not repeated explanation.
Step Sc5, calculates second video parameter of current update cycle and regarding of being being currently used
Frequently whether the difference of parameter is more than the threshold value preset.
Step Sc6, it is judged that whether the absolute value of described difference is less than the first threshold preset, if
It is less than, then it is assumed that second video parameter of current update cycle and the video parameter being being currently used
Difference little, it is not necessary to change video parameter, i.e. return step Sc1, continue join with former video
Number carries out video record and transmission, if the absolute value of described difference is equal to or more than first preset
Threshold value, then step Sc6.
Step Sc6, by currently the video parameter just used be updated to the most calculated currently
Second video parameter of update cycle；
Step Sc7, carries out recording and the transmission of video with the second video parameter after change.
Next proceed to step Sc2 and judge whether to arrive timing, thus complete one and update week
Phase.In the present invention, periodically gather data, detect current communications status whether with currently
System mode and network state are consistent, and are in time adjusted video communication, make whole
In communication process, picture is clear, smooth, it is ensured that the quality of video communication.
In the above-mentioned methods, by judging that second video parameter of current update cycle is with the most
The difference of the video parameter used determines the need for carrying out video ginseng the most in allowed limits
The adjustment of number, furthermore it is also possible to there is another scheme, i.e. when obtaining video parameter, passes through
Inquiry mapping table just can determine whether to adjust, and only when needs adjust, just can table look-up
Time obtain new video parameter, because without as in preceding method, first obtaining the current update cycle
The second video parameter, then two video parameters are compared.
Described scheme is: according to default described end message and the weight of the described network information, meter
The weighted mean of all kinds information collected；Relatively described weighted mean is with default
The size of Second Threshold；If described weighted mean is more than or equal to described the second default threshold
Value, inquires about the mapping table prestored, obtains the described current update cycle according to described weighted mean
Second video parameter；The described mapping table prestored maintains described end message and described network letter
Mapping between weighted mean and described second video parameter of at least one category information in breath is closed
System.If described weighted mean is less than described default Second Threshold, then can not obtain video ginseng
Number, thus still according to the video parameter being being currently used.
From system aspects, the present invention is described in detail below.Fig. 4 is video of the present invention
The theory diagram of communicator one embodiment.Communicator of the present invention includes information gathering mould
Block 1, video parameter acquisition module 2, video record module 3 and transmission control module 4.Wherein,
Information acquisition module 1 is for acquisition terminal information and the network information, including various sensors, as with
In the temperature controller of detection terminal mainboard Current Temperatures, for detecting the electricity of battery dump energy
Sensor etc..Described end message also includes the system that the hardware detection by terminal is learnt
The frequency run and the current residual obtained by the operating system detection of terminal (dynamically can be deposited with RAM
Reservoir).The modem of terminal can provide the network information, as the network type being currently accessed,
The handling capacity etc. of current network, carries out network video between described local terminal and described exterior terminal
Keep pouring in defeated, described exterior terminal hardware information is supplied to described local terminal.Specifically, institute
The hardware information stating exterior terminal includes screen resolution.
The information collected is sent to video parameter acquisition module 2 by information acquisition module 1, by regarding
Frequently parameter acquisition module 2 obtains one group of corresponding video record according to the every terms of information currently collected
With transmission video parameter, to adapt to current terminal local system and network.Finally give regards
Frequency record and transmission video parameter be not likely to be best, but relative to current system conditions,
One group of network condition optimum.
As it is shown in figure 5, another embodiment of the video communication device provided for the present invention.At this
In embodiment, compared with the embodiment shown in Fig. 4, add a time block 5 for determining
A update cycle in video communication, as within this update cycle, gather information, and
Determine up-to-date video parameter.
This embodiment also includes video parameter comparison module 6, is used in video communication,
The most suitable for determining currently used video parameter, if to need to change.Specific as follows: when regarding
Frequently parameter acquisition module 2 is in timing cycle, obtains according to present terminal information and/or the network information
After the second video parameter in the current update cycle, video parameter comparison module 6 contrast current the most more
Whether the second video parameter in the new cycle and the difference of the video parameter being being currently used be less than pre-
If first threshold, if it is lower, illustrate that the real-time condition change of now terminal and network is little,
It is made without adjusting.If greater than or be equal to, then by the current update cycle second video ginseng
Number is sent to described video record module 3 and described transmission control module 4；Then video record mould
Block 3 and described transmission control module 4 use the second video parameter in the current update cycle, carry out
The recording of video and transmission.
About the video parameter acquisition module 2 in Fig. 4 and Fig. 5, it can have multiple implementation,
With three embodiments, this video parameter acquisition module 2 is described in detail below.
The embodiment one of video parameter acquisition module 2 is concrete as shown in Figure 6, including the first storage list
Unit 21a and the first query unit 22a.Wherein, in the first memory element 21a, storage has described end
The mapping table of client information and the described network information and described video parameter relation；First query unit
22a receives information acquisition module 1 and obtains multiple described end message, the described network information, and root
According to these information to the first memory element 21a are inquired about described mapping table, thus obtain video ginseng
Number.
The embodiment two of video parameter acquisition module 2 is as shown in Figure 7.Including the second memory element
21b, weighted mean computing unit 22b and the second query unit 23b.Second memory element 21b
Middle storage has the default weight of described end message and the described network information, also storage to maintain and add
Weight average value and the mapping table of video parameter corresponding relation.Weighted mean computing unit 22b receives
Information acquisition module 1 obtains multiple described end message and the described network information, according to the second storage
In unit 21b, the default weight of upper storage, calculates the data weighted average value of the plurality of information.
Second query unit 23b inquires about mapping table according to described weighted mean, to obtain video parameter.
The embodiment three of video parameter acquisition module 2 is as shown in Figure 8.Including the 3rd memory element
21c, contrast unit 22c and the 3rd query unit 23c.In 3rd memory element 21c, storage is described
End message and the priority of the described network information and respective reference threshold, also storage have described
End message, the described network information and the mapping table of described video parameter relation.Comparing unit 22c
Receive information acquisition module 1 and obtain multiple described end message and the described network information.By described many
Individual information data contrasts with respective reference threshold, when there being information to be more than its reference threshold,
Send inquiry notice to the 3rd query unit 23c.3rd query unit 23c is according to comparing unit 22c
The inquiry notice inquiry mapping table sent, to obtain video parameter.
The embodiment four of video parameter acquisition module 2 is as shown in Figure 9.Including the 4th memory element
21d, weighted mean computing unit 22d, contrast unit 23d and the 4th query unit 24d.The
Four memory element 21b store the default weight of described end message and the described network information, also deposits
Contain weighted mean and the mapping table of video parameter corresponding relation and the second threshold of weighted mean
Value.Weighted mean computing unit 22d receives information acquisition module 1 and obtains multiple described terminal letter
Breath and the described network information, according to the default weight of storage upper in the 4th memory element 21d, calculate
The weighted mean of the plurality of data.Contrast unit 23d is by default with one for weighted mean the
Two threshold values contrast, if greater than described threshold value, then by the 4th query unit 23d according to described
Weighted mean inquiry mapping table, to obtain video parameter.
During according to aforementioned acquisition video parameter embodiment four, it is not necessary to the video parameter ratio in this example
Relatively module.Because having been carried out comparing when obtaining video parameter, it is determined that the need of change record
System and the video parameter of transmission, when needs are changed, just can obtain when weighted mean is more than preset value
To video parameter.
As a rule, the video parameter required for recording is resolution, such as, can be QCIF
(176 × 144), CIF (352 × 288), D1 (704 × 576), 720P (1280 × 720) or 1080P
(1920*1080).After determining resolution, the data volume that unit image needs just determines that
, then determined frame per second by current processing capabilities.For the mapping table being applied in the present invention, can
To be stored in advance in terminal, including required elementary video parameter, such as resolution, it is also possible to
Including other parameters corresponding, such as frame per second, code check, compression ratio etc..The invention is not limited in this
A little parameters, some other recording and transmission parameter can also be according to basic parameter and current network state
Calculate in real time.Owing to this type of technology is well known to those skilled in the art, thus the most superfluous at this
State.
The present invention can video record in adaptive change video call process and transmission.Such as
If be detected that use non-wlan network to converse, the most automatically change the recording of video, reduce and differentiate
Rate, to save flow, and determines to transmit frame per second according to current network handling capacity.If used
WLAN and mobile phone state are good (i.e. the every data of the system mode of the machine are good), and WLAN
The current bandwidth that connects support higher picture quality transmission, be the most automatically replaced by corresponding resolution,
And monitor handling capacity change when WLAN connects in real time and adjust transmission code rate or frame per second, it is ensured that
Smooth transmission of video.
According to embodiments of the invention as described above, these embodiments do not have detailed descriptionthe own
Details, be also not intended to the specific embodiment that this invention is only described.Obviously, as described above,
Can make many modifications and variations.These embodiments are chosen and specifically described to this specification, be in order to
Preferably explain the principle of the present invention and actual application, so that skilled artisan's energy
The present invention and amendment on the basis of the present invention is utilized to use well.Protection scope of the present invention
Should be defined in the range of standard with the claims in the present invention.
Claims (20)
1. a video communication method, including:
Acquisition terminal information and the network information；
Obtain first according at least one category information in described end message and the described network information to regard
Frequently parameter；
Video record is carried out according to described first video parameter；With,
Transmission of video is carried out according to described first video parameter.
2. video communication method as claimed in claim 1, wherein, is regarding according to described first
Frequently parameter carries out video record, and after carrying out transmission of video according to described first video parameter and
Before video communication terminates, when the update cycle arrives, also include:
At least one category information in acquisition terminal information and the network information；
Obtain the most more according at least one category information in described end message and the described network information
Second video parameter in new cycle；
Video record is carried out according to second video parameter of described current update cycle, and/or, press
The second video parameter according to the described current update cycle carries out transmission of video.
3. video communication method as claimed in claim 2, wherein,
Video record is being carried out according to second video parameter of described current update cycle, and/or,
Before carrying out transmission of video according to second video parameter of described current update cycle, also include:
Calculate between the second video parameter and the currently used video parameter of current update cycle
Difference；
Then carry out video record according to second video parameter of described current update cycle, and/or,
Carrying out transmission of video according to second video parameter of described current update cycle is:
If the absolute value of described difference is equal to or more than the first threshold preset, then work as according to described
Second video parameter of front update cycle carries out video record, and/or, according to described current renewal week
Second video parameter of phase carries out transmission of video.
4. video communication method as claimed in claim 3, wherein, also includes:
If the absolute value of described difference is less than the first threshold preset, then continue according to currently used
Video parameter carry out video record, and, carry out transmission of video according to currently used video parameter.
5. the video communication method as described in claim 1-4 is arbitrary, wherein, described terminal is believed
Breath includes: the real time status information of local terminal.
6. video communication method as claimed in claim 5, wherein, the reality of described local terminal
Time status information include: main board work frequency, mainboard temperature, battery electric quantity and available dynamically depositing
At least one in reservoir capacity.
7. the video communication method as described in claim 1-4 is arbitrary, wherein, described terminal is believed
Breath also includes realizing the hardware information of the distant terminal of video communication；
The hardware information gathering the distant terminal realizing video communication is: receives the described video that realizes and leads to
The hardware letter of the described distant terminal realizing video communication that the distant terminal of letter is sent by network
Breath.
8. video communication method as claimed in claim 7, wherein, described realizes video communication
The hardware information of distant terminal include: the display screen of the described distant terminal realizing video communication
Resolution.
9. the video communication method as described in claim 1-4 is arbitrary, wherein, described network is believed
Breath includes: at least one in network type and network throughput.
10. the video communication method as described in claim 1-4 is arbitrary, wherein, by such as lower section
Formula obtains video parameter, and described video parameter is the first video parameter and/or the second video parameter:
The mapping table prestored according to the information inquiry collected, obtains video parameter；Described prestore
Mapping table in maintain the mapping between described end message and the described network information and video parameter
Relation；
Wherein, when video parameter is the first video parameter, described in the information that collects be terminal
Information and the network information, when video parameter is the second video parameter, described in the information that collects
For at least one category information in end message and the network information.
11. video communication methods as claimed in claim 10, wherein, according to collect
The mapping table that information inquiry prestores, including:
According to default described end message and the priority orders of the described network information, will adopt successively
Collect the various information and respective reference comprised in the described end message and the described network information obtained
Threshold value compares seriatim；
If any one comprised in the described end message collected and the described network information
Information, less than corresponding reference threshold, is joined with video less than the information of corresponding reference threshold according to numerical value
The mapping relations of number, obtain video parameter from the described mapping table prestored.
12. video communication methods as claimed in claim 11, wherein, also include:
If the various information comprised in the described end message collected and the described network information
It is both greater than or equal to respective reference threshold, believes according to default described end message and described network
The weight of breath, calculates the described end message and the weighted mean of the described network information collected；
According to the described described end message collected and the weighted mean of the described network information
The mapping table that inquiry prestores, obtains video parameter；The described mapping table prestored maintains described end
Mapping relations between client information and the weighted mean of the described network information and video parameter.
13. video communication methods as claimed in claim 2, wherein, according to described end message
With in the described network information at least one category information obtain the current update cycle the second video parameter,
Including:
According to default described end message and the weight of the described network information, calculating collects
The weighted mean of all kinds information；
Relatively described weighted mean and the size of default Second Threshold；
If described weighted mean is more than or equal to described default Second Threshold, add according to described
Weight average value inquires about the mapping table prestored, and obtains second video parameter of described current update cycle；
The described mapping table prestored maintains at least one class in described end message and the described network information
Mapping relations between weighted mean and described second video parameter of information.
14. 1 kinds of video communication device, including:
Information acquisition module, for acquisition terminal information and the network information；
Video parameter acquisition module, is connected with described information acquisition module, for according to described terminal
At least one category information in information and the described network information obtains the first video parameter；
Video record module, is connected with described video parameter acquisition module, according to described first
Video parameter carries out video record；With
Transmission control module, is connected with described video parameter acquisition module and described video record module
Connect, carry out transmission of video according to described first video parameter.
15. video communication device as claimed in claim 14, wherein, also include:
Time block, is carrying out video record for providing according to described first video parameter, and is pressing
According to described first video parameter carry out transmission of video after and before video communication terminates, described
Information acquisition module periodically acquisition terminal information and the network information, described video parameter obtain mould
Block periodicity ground obtains the update cycle of the second video parameter.
16. video communication device as claimed in claim 15, wherein, also include:
Video parameter contrast module, with described video parameter acquisition module, described video record module
It is connected with described transmission control module；For calculate second video parameter of current update cycle with
The currently used difference between video parameter；
If the absolute value of described difference is equal to or more than the first threshold preset, will currently update week
Second video parameter of phase is sent to described video record module and described transmission control module, presses
The second video parameter according to the described current update cycle carries out video record, and/or, work as according to described
Second video parameter of front update cycle carries out transmission of video.
17. video communication device as described in claim 14-16 is arbitrary, wherein, described video
Parameter acquisition module includes:
Memory element, for storage system maintenance, described end message and the described network information are joined with video
The mapping table of mapping relations between number, described video parameter is the first video parameter and/or the second video
Parameter；And
Query unit, for according to mapping table described in the information inquiry collected, to obtain video
Parameter.
18. video communication device as claimed in claim 17, wherein, described memory element is also
Storage has described end message and the priority of the described network information, described video parameter acquisition module
Also include:
Comparing unit, for according to the priority orders preset, the described end that will collect successively
The various information comprised in client information and the described network information are carried out seriatim with respective reference threshold
Relatively；If any one comprised in the described end message collected and the described network information
Information, less than corresponding reference threshold, sends inquiry notice to described query unit；
Described query unit is inquired about the information being less than corresponding reference threshold in notice according to described and regarded
Frequently the mapping relations of parameter, inquire about described mapping table, obtain video from the described mapping table prestored
Parameter.
19. video communication device as claimed in claim 17, wherein, described memory element is also
Storage has the default weight of described end message and the described network information, and described mapping table maintains number
According to the mapping relations between weighted mean and described video parameter；Described video parameter acquisition module
Also include:
Weighted mean computing unit, according to default weight, calculates all information collected
Weighted mean, and described weighted mean is sent to described query unit；
Described query unit inquires about mapping table according to described data weighted average value, prestores from described
Mapping table obtains video parameter.
20. video communication device as claimed in claim 15, wherein, described video parameter obtains
Delivery block includes:
Memory element, for storing the default weight of described end message and the described network information, and
For safeguarding the mapping table of the mapping relations between weighted mean and video parameter, described video is joined
Number is the second video parameter；
Weighted mean computing unit, according to default weight, calculates all kinds collected
The weighted mean of information；
Comparing unit, relatively described weighted mean and the size of default Second Threshold, add when described
When weight average value is more than described Second Threshold, send inquiry notice to query unit；With
Query unit, for according to the weighted mean in the inquiry notice received, inquiry prestores
Mapping table, obtain second video parameter of described current update cycle.
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