CN106488309A - Video resolution conversion method and the network equipment - Google Patents
Video resolution conversion method and the network equipment Download PDFInfo
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- CN106488309A CN106488309A CN201510548027.9A CN201510548027A CN106488309A CN 106488309 A CN106488309 A CN 106488309A CN 201510548027 A CN201510548027 A CN 201510548027A CN 106488309 A CN106488309 A CN 106488309A
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- threshold value
- value
- video
- signal strength
- received signal
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving MPEG packets from an IP network
- H04N21/4382—Demodulation or channel decoding, e.g. QPSK demodulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
- H04N21/2383—Channel coding or modulation of digital bit-stream, e.g. QPSK modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440263—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by altering the spatial resolution, e.g. for displaying on a connected PDA
Abstract
A kind of video resolution conversion method, the method comprising the steps of：First threshold value of setting received signal strength indicator value, the second threshold value and the 3rd threshold value, wherein said first threshold value is more than described second threshold value, and described second threshold value is more than described 3rd threshold value；The mode of operation of detecting Wi-Fi device；Calculate the signal strength indication value that user terminal in current environment receives Wi-Fi；Compare the size of received signal strength indicator value and described first threshold value, described second threshold value and described 3rd threshold value；Adjust the resolution of described video to be transmitted according to the mode of operation of the result comparing after received signal strength indicator value and described threshold value and Wi-Fi device；Described video to be transmitted after adjustment is sent to described user terminal.The present invention also provides a kind of video resolution converting system.The present invention can allow user's viewing video have more preferable experience.
Description
Technical field
The present invention relates to video technique field, especially relate to a kind of video resolution conversion side
Method and system.
Background technology
Cable gateway (cable gateway) or WMG (media gateway) at present
Radio throughput (wireless throughput) often affected by environment, therefore electricity
Gas and Electronic Engineering Association (Institute of Electrical and Electronics
Engineers, IEEE) standard of need to constantly updating to be to provide more stable data transmission standard.But
Among family, more because disturbing with frequency/face frequency, if microwave oven, electromagnetic oven etc., wireless interrogate
Output that number often cannot be continual and steady, leverages user on watching audio-visual video
Experience.
Content of the invention
In view of the foregoing it is necessary to provide a kind of video resolution conversion method, Ke Yirang
User has more preferable experience on viewing video.
In view of the foregoing, a kind of video resolution converting system of offer is provided, permissible
Allow user that more preferable experience is had on viewing video.
The video resolution conversion method that embodiment of the present invention provides includes step：Setting connects
Receive the first threshold value, the second threshold value and the 3rd threshold value of signal strength indication value, wherein
Described first threshold value is more than described second threshold value, and described second threshold value is more than described the
Three threshold values；The mode of operation of detecting Wi-Fi device；Calculate user terminal in current environment
Receive the signal strength indication value of Wi-Fi；Relatively received signal strength indicator value with described
The size of the first threshold value, described second threshold value and described 3rd threshold value；According to comparing
Result after received signal strength indicator value and described threshold value and the Working mould of Wi-Fi device
Formula is adjusting the resolution of described video to be transmitted；Described video to be transmitted after adjustment is passed
Deliver to described user terminal.
Video resolution converting system in embodiment of the present invention includes setup module, detecting
Module, computing module, judge module, adjusting module, delivery module.Setup module is used for
First threshold value of setting received signal strength indicator value, the second threshold value and the 3rd threshold value,
Wherein said first threshold value is more than described second threshold value, and described second threshold value is more than institute
State the 3rd threshold value.Detecting module is used for detecting the mode of operation of Wi-Fi device.Calculate mould
Block is used for calculating the signal strength indication value that user terminal in current environment receives Wi-Fi.
Judge module be used for comparing received signal strength indicator value and described first threshold value, described the
Two threshold values and the size of described 3rd threshold value.Adjusting module be used for according to compare receive letter
The mode of operation of the result after number strength indicator value and described threshold value and Wi-Fi device to be adjusted
The resolution of whole described video to be transmitted.Delivery module be used for will adjustment after described in wait to transmit
Video is sent to described user terminal.
Compared to prior art, described video resolution conversion method and video resolution turn
Change system, can be according to the monitoring to the same frequency of current environment/face frequency interference, can be right in real time
The resolution of video is changed, and user can be allowed to have more preferable experience on viewing video.
Brief description
Fig. 1 is the functional block diagram of video resolution converting system preferred embodiment of the present invention.
Fig. 2 is the decode-regulating scheme of 802.11n standard of the present invention and corresponding bit rate figure.
Fig. 3 is the received signal strength indicator that the present invention is obtained based on the actual measurement of 802.11n standard
Value and the linear regression graph of message transmission rate.
The flow chart of Fig. 4 video of the present invention resolution conversion method preferred embodiment.
Main element symbol description
| The network equipment | 2 |
| User terminal | 4 |
| Video resolution converting system | 10 |
| Memorizer | 20 |
| Processor | 30 |
| Setup module | 100 |
| Detecting module | 200 |
| Computing module | 300 |
| Judge module | 400 |
| Adjusting module | 500 |
| Delivery module | 600 |
Following specific embodiment will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Specific embodiment
Refering to Fig. 1, it is the functional block diagram of inventive network equipment 2 better embodiment.
The network equipment 2 includes video resolution converting system 10, memorizer 20 and processor 30.
In the present embodiment, the network equipment 2 can be the equipment such as gateway, modem, with
Wired or wireless way is connected to one or more user terminals 4.Video resolution conversion system
System 10 is used for the resolution for user terminal 4 converting video.
Described video resolution converting system 10 include setup module 100, detecting module 200,
Computing module 300, judge module 400, adjusting module 500 and delivery module 600.Described
Module is configured to be executed by one or more processors, to complete the present invention.In this enforcement
In mode, described module is executed by processor 30.Module alleged by the present invention is to complete a spy
Determine the computer program code segments of function.Memorizer 20 is used for storing video resolution converting system
The data such as 10 program code.
Described setup module 100 is used for arranging the first thresholding of received signal strength indicator value
Value, the second threshold value and the 3rd threshold value, wherein said first threshold value is more than described second
Threshold value, described second threshold value is more than described 3rd threshold value.In the present embodiment,
Described first threshold value is -50 decibels above milliwatts (dBm), and described second threshold value is -70dBm,
Described 3rd threshold value is -78dBm.
Described detecting module 200 is used for detecting the mode of operation of Wi-Fi device.In this enforcement
In mode, the Wi-Fi device mode of operation of described detecting include 802.11ac, 802.11n and
802.11g and its each self-corresponding decode-regulating scheme.The decode-regulating scheme of described detecting
Corresponding at least first preset value, the second preset value and the 3rd preset value.Refering to Fig. 2,
In present embodiment, described first preset value corresponding modulating decoding scheme numbering 5, its modulation
Type be 64 phase quadrature amplitude modulation (64-Quadrature Amplitude Modulation,
64-QAM), described second preset value corresponding modulating decoding scheme numbering 3, its modulation type
For 16 phase quadrature amplitude modulation (16-Quadrature Amplitude Modulation,
16-QAM), described 3rd preset value corresponding modulating decoding scheme numbering 1, its modulation type
For QPSK (Quadrature Phase Shift Keying, QPSK).By actual measurement
The message transmission rate that reality can be obtained typically can only achieve the 70% of theoretical value.For example join
Read shown in Fig. 2, if the Wi-Fi device of 802.11n standard is operated in decode-regulating side
7,40 megahertzs of (Mega Hertz, MHz) channel widths of case numbering, 400 nanoseconds
During (nanosecond, ns) G1, its theory maximum data transfer rate be 150,000,000 ratio
Special (Million bits per second, Mbps) per second, but according to its actual data of actual measurement
Transfer rate is 150*0.7=105Mbps.
Described computing module 300 is used for calculating user terminal in current environment and receives Wi-Fi
Signal strength indication value, wherein received signal strength indicator value (Received Signal
Strength Indication, RSSI)=transmit power (Txpower)+antenna gain
(Antenna Gain)-path loss (Path Loss).Signal be can be received according to actual measurement
Strength indicator value and the linear regression graph of message transmission rate, refering to Fig. 3.
Described judge module 400 is used for comparing received signal strength indicator value and described first
The size of limit value, described second threshold value and described 3rd threshold value.
Described adjusting module 500 is used for according to comparing received signal strength indicator value and described door
The mode of operation of the result after limit value and Wi-Fi device is adjusting the solution of described video to be transmitted
Analysis degree.In the present embodiment, described adjusting module 500 be used for when described receipt signal strong
Degree indicated value is more than described first threshold value, and detects the current work of described Wi-Fi device
When the described decode-regulating Protocol Numbers of operation mode are more than the first preset value, adjustment is described to be passed
Send the resolution of video extremely super clear；When described received signal strength indicator value is more than described second
Threshold value, and detect the described decode-regulating of the current operation mode of described Wi-Fi device
When Protocol Numbers are more than the second preset value, the resolution adjusting described video to be transmitted is to high definition；
When described received signal strength indicator value is more than described 3rd threshold value, and detect described
The described decode-regulating Protocol Numbers of the current operation mode of Wi-Fi device are more than the 3rd to be preset
During value, the resolution adjusting described video to be transmitted is to SD.
Described adjusting module 500 be additionally operable to according to described received signal strength indicator value with described
Smaller value in the described decode-regulating Protocol Numbers of the current operation mode of Wi-Fi device is adjusted
The resolution of whole described video to be transmitted.For example, when described received signal strength indicator value is big
In described first threshold value, but detect the institute of the current operation mode of described Wi-Fi device
When stating decode-regulating Protocol Numbers less than or equal to the first preset value, then according to described Wi-Fi
Treat described in the adjustment corresponding to described decode-regulating Protocol Numbers of the current operation mode of device
The resolution of transmission video.
Described delivery module 600 is described for being sent to the described video to be transmitted after adjustment
User terminal.
Described delivery module 600 is additionally operable to be less than or equal to when described received signal strength indicator value
The information of video during described three threshold value, cannot be play to described user terminal feedback.
It is the flow chart of frequency resolution conversion method preferred embodiment of the present invention refering to Fig. 4.Institute
State video resolution conversion method and be applied to video resolution converting system 10, by processor
In 30 execution memorizeies 20, the program code of storage is realized.
Step S10, the first threshold value of setting received signal strength indicator value, the second thresholding
Value and the 3rd threshold value, wherein said first threshold value is more than described second threshold value, described
Second threshold value is more than described 3rd threshold value.In the present embodiment, described first thresholding
It is worth for -50dBm, described second threshold value is -70dBm, described 3rd threshold value is -78
dBm.
Step S11, the mode of operation of detecting Wi-Fi device.In the present embodiment, institute
State detecting Wi-Fi device mode of operation include 802.11ac, 802.11n and 802.11g and
Its each self-corresponding decode-regulating scheme.The decode-regulating scheme of described detecting corresponds at least
First preset value, the second preset value and the 3rd preset value.Refering to Fig. 2, in present embodiment
In, described first preset value corresponding modulating decoding scheme numbering 5, its modulation type is
64-QAM, described second preset value corresponding modulating decoding scheme numbering 3, its modulation type is
16-QAM, described 3rd preset value corresponding modulating decoding scheme numbering 1, its modulation type is
QPSK.Theoretical value typically be can only achieve by the message transmission rate that actual measurement can obtain reality
70%.For example refer to shown in Fig. 2, if the Wi-Fi device work of 802.11n standard
Make in decode-regulating Protocol Numbers 7,40MHz channel width, 400ns G1, it is theoretical
Maximum data transfer rate be 150Mbps, but pass according to surveying its actual data
Defeated speed is 150*0.7=105Mbps.
Step S12, calculates the signal intensity that user terminal in current environment receives Wi-Fi
Indicated value, wherein RSSI=Txpower+Antenna Gain-Path Loss.Can according to actual measurement
To obtain the linear regression graph of received signal strength indicator value and message transmission rate, refering to figure
3.
Step S13, compares received signal strength indicator value and described first threshold value, described
Second threshold value and the size of described 3rd threshold value.
Step S14, according to the knot comparing after received signal strength indicator value and described threshold value
The resolution to adjust described video to be transmitted for the mode of operation of fruit and Wi-Fi device.At this
In embodiment, described adjusting module 500 be used for when described received signal strength indicator value big
In described first threshold value, and detect the institute of the current operation mode of described Wi-Fi device
When stating decode-regulating Protocol Numbers more than the first preset value, adjust the solution of described video to be transmitted
Analysis degree is extremely super clear；When described received signal strength indicator value is more than described second threshold value, and
The described decode-regulating Protocol Numbers detecting the current operation mode of described Wi-Fi device are big
When the second preset value, the resolution adjusting described video to be transmitted is to high definition；Connect when described
Receive signal strength indication value and be more than described 3rd threshold value, and detect described Wi-Fi device
Current operation mode described decode-regulating Protocol Numbers be more than three preset values when, adjustment
The resolution of described video to be transmitted is to SD.
Work at present mould according to described received signal strength indicator value and described Wi-Fi device
Smaller value in the described decode-regulating Protocol Numbers of formula adjusts the parsing of described video to be transmitted
Degree.For example, when described received signal strength indicator value is more than described first threshold value, but detect
The described decode-regulating Protocol Numbers measuring the current operation mode of described Wi-Fi device are less than
Or when being equal to the first preset value, then the institute of the current operation mode according to described Wi-Fi device
State the resolution of the described video to be transmitted of adjustment corresponding to decode-regulating Protocol Numbers.
Step S15, the described video to be transmitted after adjustment is sent to described user terminal.
When described received signal strength indicator value is less than or equal to described three threshold value, to institute
State the information that user terminal feedback cannot play video.
Above example only in order to technical scheme to be described and unrestricted, although reference
Preferred embodiment has been described in detail to the present invention, and those of ordinary skill in the art should
Understand, technical scheme can be modified or equivalent, without deviating from this
The spirit and scope of inventive technique scheme.
Claims (12)
1. a kind of video resolution conversion method is it is characterised in that the method comprising the steps of：
First threshold value of setting received signal strength indicator value, the second threshold value and the 3rd
Limit value, wherein said first threshold value is more than described second threshold value, described second threshold value
More than described 3rd threshold value；
The mode of operation of detecting Wi-Fi device；
Calculate the signal strength indication value that user terminal in current environment receives Wi-Fi；
Relatively received signal strength indicator value and described first threshold value, described second threshold value
With described 3rd threshold value；
According to the result comparing after received signal strength indicator value and described threshold value and Wi-Fi
The mode of operation of device is adjusting the resolution of described video to be transmitted；And
Described video to be transmitted after adjustment is sent to described user terminal.
2. video resolution conversion method as claimed in claim 1 is it is characterised in that institute
The mode of operation stating Wi-Fi device includes 802.11ac, 802.11n and 802.11g and its each
Self-corresponding decode-regulating scheme.
3. video resolution conversion method as claimed in claim 2 is it is characterised in that institute
State decode-regulating Protocol Numbers pre- corresponding at least first preset value, the second preset value and the 3rd
If value.
4. video resolution conversion method as claimed in claim 3 is it is characterised in that adjust
The step of the resolution of whole described video to be transmitted also includes：
When described received signal strength indicator value is more than described first threshold value, and detect institute
The described decode-regulating Protocol Numbers stating the current operation mode of Wi-Fi device are pre- more than first
If during value, the resolution adjusting described video to be transmitted is extremely super clear；
When described received signal strength indicator value is more than described second threshold value, and detect institute
The described decode-regulating Protocol Numbers stating the current operation mode of Wi-Fi device are pre- more than second
If during value, the resolution adjusting described video to be transmitted is to high definition；And
When described received signal strength indicator value is more than described 3rd threshold value, and detect institute
The described decode-regulating Protocol Numbers stating the current operation mode of Wi-Fi device are pre- more than the 3rd
If during value, the resolution adjusting described video to be transmitted is to SD.
5. video resolution conversion method as claimed in claim 2 is it is characterised in that be somebody's turn to do
Method also includes step：
Work at present mould according to described received signal strength indicator value and described Wi-Fi device
Smaller value in the described decode-regulating Protocol Numbers of formula adjusts the parsing of described video to be transmitted
Degree.
6. video resolution conversion method as claimed in claim 1 is it is characterised in that work as
When described received signal strength indicator value is less than or equal to described three threshold value, to described user
Terminal feedback cannot play the information of video.
7. a kind of network equipment, the described network equipment is wirelessly connected to user terminal,
It is characterized in that, the described network equipment includes：
Setup module, for arrange received signal strength indicator value the first threshold value, second
Threshold value and the 3rd threshold value, wherein said first threshold value is more than described second threshold value,
Described second threshold value is more than described 3rd threshold value；
Detecting module, for detecting the mode of operation of Wi-Fi device；
Computing module, receives the signal of Wi-Fi for calculating user terminal in current environment
Strength indicator value；
Judge module, be used for comparing received signal strength indicator value and described first threshold value,
Described second threshold value and described 3rd threshold value；
Adjusting module, for according to comparing after received signal strength indicator value and described threshold value
Result and Wi-Fi device the resolution to adjust described video to be transmitted for the mode of operation；
And
Delivery module, for being sent to described user eventually by the described video to be transmitted after adjustment
End.
8. the network equipment as claimed in claim 7 is it is characterised in that described detecting
The mode of operation of Wi-Fi device includes 802.11ac, 802.11n and 802.11g and its each
Corresponding decode-regulating scheme.
9. the network equipment as claimed in claim 8 is it is characterised in that the tune of described detecting
Decoding scheme processed is numbered corresponding at least first preset value, the second preset value and the 3rd preset value.
10. the network equipment as claimed in claim 9 is it is characterised in that described adjustment mould
Block is additionally operable to：
When described received signal strength indicator value is more than described first threshold value, and detect institute
The described decode-regulating Protocol Numbers stating the current operation mode of Wi-Fi device are pre- more than first
If during value, the resolution adjusting described video to be transmitted is extremely super clear；
When described received signal strength indicator value is more than described second threshold value, and detect institute
The described decode-regulating Protocol Numbers stating the current operation mode of Wi-Fi device are pre- more than second
If during value, the resolution adjusting described video to be transmitted is to high definition；And
When described received signal strength indicator value is more than described 3rd threshold value, and detect institute
The described decode-regulating Protocol Numbers stating the current operation mode of Wi-Fi device are pre- more than the 3rd
If during value, the resolution adjusting described video to be transmitted is to SD.
11. network equipments as claimed in claim 8 are it is characterised in that described adjustment mould
Block is additionally operable to the current work according to described received signal strength indicator value and described Wi-Fi device
Smaller value in the described decode-regulating Protocol Numbers of operation mode adjusts described video to be transmitted
Resolution.
12. network equipments as claimed in claim 7 are it is characterised in that described transmission mould
Block is additionally operable to when described received signal strength indicator value is less than or equal to described three threshold value,
The information of video cannot be play to described user terminal feedback.
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| CN201510548027.9A CN106488309B (en) | 2015-08-31 | 2015-08-31 | Video resolution conversion method and the network equipment |
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