CN108574814A - Data processing method and device - Google Patents
Data processing method and device Download PDFInfo
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- CN108574814A CN108574814A CN201710136178.2A CN201710136178A CN108574814A CN 108574814 A CN108574814 A CN 108574814A CN 201710136178 A CN201710136178 A CN 201710136178A CN 108574814 A CN108574814 A CN 108574814A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
Abstract
The invention discloses a kind of data processing method and devices, belong to multimedia technology field.This method includes：When the value of SAV in the data line based on reception and the value of EAV confirmly detect blank lines, continuous effective quantity is counted；If continuous effective quantity reaches the first preset quantity, after the EAV for detecting next blank lines, when the value of the SAV in the data line based on reception and the value of EAV confirmly detect effective row, resolved detection to effective row in include valid data.In resolving, when the value of the value of the SAV in the data line based on reception and EAV detects blank lines again, terminate parsing operation, and based on default resolution ratio and receive sequential, the valid data that parsing obtains are reconfigured into framing according to preset data row format.Row or frame losing problem are lost caused by error just abandons data line in this way, avoiding and being detected using CRC, improves the fault-tolerant treatment to data.
Description
Technical field
The present invention relates to multimedia technology field, more particularly to a kind of data processing method and device.
Background technology
Currently, in multimedia technology field, it is most of using SDI (Serial Digital Interface, number point
Amount serial line interface) carry out data transmission, according to the of different sizes of transmission rate, the type of SDI includes HD (High
Definition, high-resolution)-SDI, 3G (Third Generation, the third generation)-SDI etc..Data are being carried out by SDI
When transmission, generally it is transmitted with behavior granularity.In receiving terminal, first by SDI links early period by multiple data lines of reception according to
Sequential combination framing is received, and then the frame data are transferred to subsequent Display processing module to carry out the processing such as showing.
As shown in Figure 1, a frame includes multiple data lines, wherein first few lines and last rows are known as blank lines, middle section
Referred to as effective row.Each data line includes SAV (Start of Active Video, the starting of effective video data), EAV
(End of Active Video, the end of effective video data) and blanking section, and effectively row further includes valid data, it should
Valid data are used to indicate coloration and the brightness of pixel.The blank lines can be distinguished according to the value of SAV and EAV and this is effective
Row, for example, for 8 bit accuracies, the value of the SAV of blank lines is OxFF0000ab, and the value of EAV is OxFF0000b6, and
The value of the SAV of effective row is OxFF000080, and the value of EAV is OxFF00009d.
During actual data transfer, due to being limited by length of cable, data are susceptible to transmission in transmission
The phenomenon of mistake.Currently, receiving terminal generally uses CRC (Cyclic Redundancy Check, cyclic redundancy check) technology pair
The data line of reception is verified, to judge whether error of transmission occur.However, CRC technologies can only verify out transmission data is
No error, but can not detect which part in specifically data line is malfunctioned.Therefore, when detecting data transmission error,
The data line can only be abandoned, so as to cause there is losing row or the phenomenon that frame losing, the fault-tolerant treatment of data is poor.
Invention content
Fault-tolerant treatment in order to solve the problems, such as data in the prior art is poor, and an embodiment of the present invention provides a kind of numbers
According to processing method and processing device.The technical solution is as follows：
On the one hand, a kind of data processing method is provided, the method includes：
When the value of the value of the SAV in the data line based on reception and EAV confirmly detects blank lines, continuous effective is counted
Quantity, the continuous effective quantity are continuously to receive the quantity of effective blank lines, and the effective blank lines refer to including
The effective blank lines of SAV and EAV；
If the continuous effective quantity reaches the first preset quantity, after the EAV for detecting next blank lines, whenever
When the value of SAV in data line based on reception and the value of EAV confirmly detect effective row, resolved detection to effective row in wrap
The valid data contained, the valid data include multiple data components, are used to indicate the display properties of pixel；
In resolving, when the value of the SAV in the data line based on reception and the value of EAV detect blank lines again
When, terminate parsing operation, and based on default resolution ratio and receive sequential, according to preset data row format will parsing obtain it is effective
Data reconfigure framing, to handle transmission data.
Optionally, described when the value and effective video for originating SAV based on the effective video data in the data line of reception
When the value of the end EAV of data confirmly detects blank lines, continuous effective quantity is counted, including：
When the value of SAV and the value of EAV in receiving data line and going based on the data confirmly detect blank lines,
Judge whether the blank lines are effective blank lines；
If the effective blank lines of blanking behavior, increase the continuous effective quantity, otherwise, reset described continuous
Effective quantity.
Optionally, described to judge whether the blank lines are effective blank lines, including：
It is transmitted between SAV in SAV of the statistics in the blank lines and the continuous upper blank lines of the blank lines
Pixel quantity, obtain the first pixel quantity, and count SAV in the blank lines and the blank lines are continuous
The pixel quantity transmitted between SAV in next blank lines obtains the second pixel quantity；
It is transmitted between EAV in EAV of the statistics in the blank lines and the continuous upper blank lines of the blank lines
Pixel quantity, obtain third pixel quantity, and count the next of EAV in the blank lines and the blank lines
The pixel quantity transmitted between EAV in a blank lines obtains the 4th pixel quantity；
If first pixel quantity is identical as second pixel quantity, and the third pixel quantity and institute
It is identical to state the 4th pixel quantity, it is determined that the effective blank lines of blanking behavior.
Optionally, the resolved detection to effective row in include valid data before, further include：
For the effective row received every time, judge EAV in effective row and SAV whether effectively；
As the EAV and/or SAV invalid in effective row, consecutive invalid quantity is counted, and judge the consecutive invalid
Whether quantity reaches the second preset quantity, when the consecutive invalid quantity reaches second preset quantity, stops executing institute
State resolved detection to effective row in include valid data operation；
As the EAV and SAV effective in effective row, by the consecutive invalid zeros data, and institute is continued to execute
State resolved detection to effective row in include valid data operation.
Optionally, the resolved detection to effective row in include valid data after, further include：
Restrict processing and median filter process are carried out to the valid data of parsing；
Correspondingly, described based on default resolution ratio and reception sequential, have what parsing obtained according to preset data row format
Effect data reconfigure framing, including：
Based on default resolution ratio and sequential is received, will pass through restrict processing and intermediate value according to preset data row format
Valid data after being filtered reconfigure framing.
Optionally, the valid data of described pair of parsing carry out restrict processing, including：
Each data component in the multiple data components for including for the valid data, if the value of the data component
The value of the data component is then revised as corresponding with the data component by preset range corresponding more than with the data component
Preset range upper limit value；
If the value of the valid data is less than preset range corresponding with the data component, by the data component
Value is revised as the lower limiting value of preset range corresponding with the data component.
Optionally, described based on default resolution ratio and reception sequential, have what parsing obtained according to preset data row format
Effect data reconfigure framing, including：
Based on the default resolution ratio, effective row is generated according to the valid data that preset data row format obtains parsing,
And generate blank lines according to the preset data row format；
Based on the reception sequential, the blank lines of generation and effective row are reconfigured into framing.
On the other hand, a kind of data processing equipment is provided, described device includes：
Statistical module, for as the starting SAV based on the effective video data in the data line of reception value with effectively regard
When the value of the end EAV of frequency evidence confirmly detects blank lines, continuous effective quantity is counted, the continuous effective quantity is continuous
The quantity of effective blank lines is received, the effective blank lines refer to the effective blank lines of the SAV for including and EAV；
Parsing module, if the continuous effective quantity for the statistical module counts reaches the first preset quantity,
After the EAV for detecting next blank lines, whenever the value of the SAV in the data line based on reception and the value of EAV determine detection
When to effective row, resolved detection to effective row in include valid data, the valid data include multiple data components, use
In the display properties of instruction pixel；
Composite module, in the parsing module resolving, when the SAV in the data line based on reception value and
When the value of EAV detects blank lines again, terminate parsing operation, and based on default resolution ratio and receive sequential, according to present count
The valid data that parsing obtains are reconfigured into framing according to row format, to handle transmission data.
Optionally, the statistical module includes：
Judging unit, for when receive data line and based on the data go in SAV value and EAV value determine inspection
When measuring blank lines, judge whether the blank lines are effective blank lines；
Statistic unit, for when the effective blank lines of the blanking behavior, increasing the continuous effective quantity, otherwise,
Reset the continuous effective quantity.
Optionally, the judging unit is used for：
It is transmitted between SAV in SAV of the statistics in the blank lines and the continuous upper blank lines of the blank lines
Pixel quantity, obtain the first pixel quantity, and count SAV in the blank lines and the blank lines are continuous
The pixel quantity transmitted between SAV in next blank lines obtains the second pixel quantity；
It is transmitted between EAV in EAV of the statistics in the blank lines and the continuous upper blank lines of the blank lines
Pixel quantity, obtain third pixel quantity, and count the next of EAV in the blank lines and the blank lines
The pixel quantity transmitted between EAV in a blank lines obtains the 4th pixel quantity；
If first pixel quantity is identical as second pixel quantity, and the third pixel quantity and institute
It is identical to state the 4th pixel quantity, it is determined that the effective blank lines of blanking behavior.
Optionally, described device further includes：
Judgment module judges whether the EAV and SAV in effective row have for effective row for receiving every time
Effect；
Trigger module, for as the EAV and/or SAV invalid in effective row, counting consecutive invalid quantity, and sentence
Whether the consecutive invalid quantity of breaking reaches the second preset quantity, when the consecutive invalid quantity reaches second preset quantity
When, trigger the parsing module stop executing the resolved detection to effective row in include valid data operation；
The trigger module is additionally operable to as the EAV and SAV effective in effective row, by the consecutive invalid number
According to clearing, and trigger the parsing module continue to execute the resolved detection to effective row in include valid data behaviour
Make.
Optionally, described device further includes：
Processing module carries out restrict processing and median filter process for the valid data to parsing；
The composite module is additionally operable to based on default resolution ratio and receives sequential, will pass through according to preset data row format
Valid data after restrict processing and median filter process reconfigure framing.
Optionally, the processing module is used for：
Each data component in the multiple data components for including for the valid data, if the value of the data component
The value of the data component is then revised as corresponding with the data component by preset range corresponding more than with the data component
Preset range upper limit value；
If the value of the valid data is less than preset range corresponding with the data component, by the data component
Value is revised as the lower limiting value of preset range corresponding with the data component.
Optionally, the composite module is used for：
Based on the default resolution ratio, effective row is generated according to the valid data that preset data row format obtains parsing,
And generate blank lines according to the preset data row format；
Based on the reception sequential, the blank lines of generation and effective row are reconfigured into framing.
The advantageous effect that technical solution provided in an embodiment of the present invention is brought is：In receiving data procedures, when based on connecing
When the value of SAV and the value of EAV confirmly detect blank lines in the data line of receipts, statistics continuously receives the number of effective blank lines
Amount.If the quantity of statistics reaches the first predetermined threshold value, illustrate that transmission link is preferable, is next received it is possible thereby to estimate
Data line transmission is correct.Therefore, whenever detecting the effective row of the data behavior of reception, the valid data in effective row are parsed,
When detecting blank lines again, a frame data end of transmission is determined.Later, it is based on default resolution ratio and receives sequential, press
The valid data that parsing obtains are reconfigured into framing according to preset data row format.By EAV in the data line to reception and
SAV is analyzed, and valid data is parsed from effective row, and reconfigure framing, is avoided and is detected out using CRC technologies
Row or frame losing problem are lost caused by the wrong data line for just abandoning error, the fault-tolerant processing to data is realized, improves data
Fault-tolerant treatment.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is a kind of form schematic diagram of frame data shown according to an exemplary embodiment；
Fig. 2A is a kind of data processing method flow chart shown according to an exemplary embodiment；
Fig. 2 B are a kind of form schematic diagrams of blank lines shown according to an exemplary embodiment；
Fig. 2 C are a kind of schematic diagrames of effective row of generation shown according to an exemplary embodiment；
Fig. 2 D are a kind of schematic diagrames of the blank lines of generation shown according to an exemplary embodiment；
Fig. 2 E (1) are a kind of display effect schematic diagrames for noisy image that Fig. 2A embodiments are related to；
Fig. 2 E (2) are a kind of display effect schematic diagrames for image after medium filtering that Fig. 2A embodiments are related to；
Fig. 3 A are a kind of structural schematic diagrams of data processing equipment shown according to an exemplary embodiment；
Fig. 3 B are the structural schematic diagrams of another data processing equipment shown according to an exemplary embodiment；
Fig. 3 C are the structural schematic diagrams of another data processing equipment shown according to an exemplary embodiment；
Fig. 4 is a kind of structural schematic diagram of receiving terminal shown according to an exemplary embodiment.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
Before the embodiment of the present invention is introduced, the scene of application of the embodiment of the present invention is introduced first.This
The data processing method that inventive embodiments provide can apply the application for being related to data transmission in broadcast, security protection, video conference etc.
In scene, also, in practical application scene, transmitting terminal passes through such as 3G-SDI, HD-SDI, 6G (Sixth with receiving terminal
Generation, the 6th generation) SDI of-SDI etc realizes data transmission.SDI is a kind of standardized interface, passes through coaxial electrical
Cable, can composite audio and video carry out data transmission.Since video and audio are one-way transmissions, itself there is no transmitting machine
System, therefore, in data transmission procedure, it is possible that the phenomenon that error of transmission.For this purpose, an embodiment of the present invention provides one kind
Data processing method, the data processing method can carry out analysis and fault-tolerant processing in receiving terminal to the data of reception, in order to
Will treated after data are transferred to the modules such as subsequent display processing, the display quality of image can be improved.Wherein, the reception
End can be that various multimedia equipments are being implemented as follows for example, the multimedia equipment may include video camera, Medical Instruments etc.
In example, executive agent is referred to as receiving terminal.
In addition, it is necessary to explanation, data processing method provided in an embodiment of the present invention can be applied in multiclass platform,
For example, the platform can be SOC (System on Chip, system level chip), DSP (Digital Signal
Processing, Digital Signal Processing), FPGA (Field Programmable Gate Array, field programmable gate
Array) etc., it is not limited in the embodiment of the present invention.
Fig. 2A is a kind of data processing method flow chart shown according to an exemplary embodiment, which can
To include the following steps：
Step 201：When the value of the value of the SAV in the data line based on reception and EAV confirmly detects blank lines, statistics
Continuous effective quantity, the continuous effective quantity are continuously to receive the quantity of effective blank lines, which refers to packet
The effective blank lines of SAV and EAV contained.
As it was noted above, when being carried out data transmission by SDI, usually it is transmitted with data behavior granularity.Wherein,
The data line includes blank lines and effective row.It may determine that the data line is to disappear according to the value of the value of EAV in data line and SAV
Hidden row or effective row.For example, for 8 bit accuracies, if the value of SAV is OxFF0000ab and EAV in the data line
Value be OxFF0000b6, then can determine the data behavior blank lines, and if in the data line SAV value be OxFF000080 and
The value of EAV is OxFF00009d, then can determine the effective row of data behavior.
During actually realizing, if the performance of transmission link is poor, the data line of transmission can be caused to transmit
Mistake.In order to estimate the performance of transmission link, receiving terminal is determined when the value of value and EAV based on the SAV in the data line of reception
When detecting blank lines, the transmission link can be estimated according to the validity of the blank lines continuously received, be connect down to estimate
It is whether correct come effective row for transmitting.It that is to say, during receiving data line, when receiving terminal is based in the data line of reception
The value of SAV and the value of EAV when confirmly detecting blank lines, statistics continuously receives the quantity of effective blank lines.
It is specifically, above-mentioned when the value of the value of the SAV in the data line based on reception and EAV confirmly detects blank lines,
Statistics continuous effective quantity may include following several realization steps：
Step 2011：When receiving data line and the value of value and EAV based on the SAV in the data line confirmly detects and disappears
When hidden row, judge whether the blank lines are effective blank lines.
In order to count continuous effective quantity, receiving terminal needs to judge whether the data line received every time is blank lines, if
It is blank lines, it is also necessary to further judge whether the blank lines are effective.In the concrete realization, judge whether the blank lines are effective
Blank lines may include that following (1)-(3) realize process：
(1) it is transmitted between the SAV in SAV of the statistics in the blank lines and the continuous upper blank lines of the blank lines
Pixel quantity, obtains the first pixel quantity, and counts SAV in the blank lines and the blank lines are continuously next
The pixel quantity transmitted between SAV in blank lines obtains the second pixel quantity.
In fact, the pixel quantity all same that each data line includes, wherein each pixel can be by comprising more
The pixel value of a bit indicates.During actual data transfer, blanking section and data section include pixel,
In, the data interval in blank lines refers to blank lines data portion, and the data difference in effective row refers to valid data part.
In the case of correct transmission, in two data lines, the pixel quantity that blanking section includes is identical, the picture that data interval includes
Vegetarian refreshments quantity is also identical.In that case, it may be determined that the format of the data line is correct, i.e. the effective data of data behavior
Row.Therefore, in order to judge whether the blank lines are effective blank lines, include in the blank lines that receiving terminal statistics continuously receives
Pixel quantity.
For example, please referring to Fig.2 B, to judge whether blank lines 2 are effective blank lines, then receiving terminal counts blank lines 2
In SAV and blank lines 1 in SAV between the pixel quantity transmitted, obtain the first pixel quantity, and count the blanking
The quantity of the pixel transmitted between SAV in SAV in row 2 and blank lines 3 obtains the second pixel quantity.
(2) it is transmitted between the EAV in EAV of the statistics in the blank lines and the continuous upper blank lines of the blank lines
Pixel quantity obtains third pixel quantity, and counts next blanking of the EAV and the blank lines in the blank lines
The pixel quantity transmitted between EAV in row obtains the 4th pixel quantity.
It that is to say, when whether judge blank lines is effective blank lines, in addition to needing to count the pixel transmitted between SAV
Except point quantity, it is also necessary to count the pixel quantity transmitted between EAV.
For example, please continue to refer to Fig. 2 B, to judge whether blank lines 2 are effective blank lines, then count in blank lines 2
EAV and blank lines 1 in EAV between the pixel quantity transmitted, obtain third pixel quantity, and count the blank lines
The quantity of the pixel transmitted between EAV in EAV in 2 and blank lines 3 obtains the 4th pixel quantity.
(3) if first pixel quantity is identical as second pixel quantity, and the third pixel quantity with this
Four pixel quantities are identical, it is determined that the effective blank lines of blanking behavior.
If first pixel quantity is identical as second pixel quantity, and the third pixel quantity and the 4th picture
Vegetarian refreshments quantity is identical, then can determine blanking section includes in the blank lines pixel quantity and blanking in a upper blank lines
The pixel quantity that section includes is identical, and in the pixel quantity that data interval includes in the blank lines and a upper blank lines
The pixel quantity that data interval includes is identical, and in that case, receiving terminal determines that the blank lines are effective blank lines.
It should be noted that if first pixel quantity is identical as second pixel quantity, it can be said that bright this disappears
SAV in hidden row is effective, if the third pixel quantity is identical as the 4th pixel quantity, it can be said that in bright blank lines
EAV is effective.It that is to say, during whether judge blank lines is effective blank lines, can judge SAV's and EAV respectively
Validity, as the SAV and EAV effective in blank lines, it may be determined that the blank lines are effective blank lines.
In the concrete realization, after judging whether the SAV is effective, which can be marked.If for example, the SAV has
Effect, the then value that can record the corresponding SAV_Right_ERRN of the SAV are 1, otherwise, however, it is determined that the SAV is invalid, then can record
The value of the corresponding SAV_Right_ERRN of the SAV is 0.
Similarly, in the concrete realization, after judging whether the EAV is effective, which can also be identified.If for example,
The EAV is effective, then the value that can record the corresponding EAV_Right_ERRN of the EAV is 1, otherwise, however, it is determined that the EAV is invalid, then
The value that the corresponding EAV_Right_ERRN of the EAV can be recorded is 0.
For the blank lines received every time, judge whether the value of SAV_Right_ERRN is 1, and judge EAV_Right_
Whether the value of ERRN is 1, if the value of the value EAV_Right_ERRN of the SAV_Right_ERRN is 1, it is determined that the blank lines
For effective blank lines.
Step 2012：If the effective blank lines of blanking behavior, increase the continuous effective quantity, otherwise, resetting should
Continuous effective quantity.
In the concrete realization, if the effective blank lines of blanking behavior, which can be added to 1, and
Continue that the data line next received is detected and is judged, that is, detect the data line that next receives whether or blanking
Row.If the data line next received not instead of blank lines, effective row then abandon the frame data, and return to step again
201。
If the data line next received is blank lines, judge whether the blank lines are effective blank lines, if it is
Effective blank lines then continue growing continuous effective quantity., whereas if the blank lines that the blanking behavior is invalid, the i.e. blanking
At least one in SAV and EAV in row is invalid, it is determined that the invalid blank lines of the blanking behavior.In that case, it receives
Continuous effective zeroing number is counted the continuous effective quantity by end again.That is to say, connect it is lower in data transmission procedure
In, when the value of SAV in the data line for being again based on reception and the value of EAV detect blank lines, continuous effective number is counted again
Amount.
In the concrete realization, above-mentioned when the value of value and EAV based on the SAV in the data line of reception confirmly detects blanking
When row, statistics continuous effective quantity can pass through following Implementation of pseudocode：
Wherein, N_line_cnt represents continuous effective quantity, and N represents the first preset quantity as described below.When detecting
When SAV in blank lines, judge whether the value of SAV_Right_ERRN is 1, when detecting the EAV in blank lines, judges
Whether the value of EAV_Right_ERRN is 1, if there are one being 0, continuous effective zeroing number, otherwise, continuous effective quantity
Add 1.
Step 202：If the continuous effective quantity reaches the first preset quantity, in the EAV for detecting next blank lines
Afterwards, when the value of the SAV in the data line based on reception and the value of EAV confirmly detect effective row, resolved detection to have
The valid data for including in effect row, the valid data include multiple data components, are used to indicate the display properties of pixel.
If the continuous effective quantity reaches the first preset quantity, current transmission link better performances can be estimated, i.e.,
Do not occur the abnormal phenomenon of error of transmission, in this case, after the EAV for detecting next blank lines, is prepared to enter into lock
Determine state, that is, prepares this frame data of locking current transmission.When the value of SAV in the data line based on reception and the value of EAV are true
When regular inspection measures effective row, receiving terminal parses the valid data for including in effective row, and caches the valid data.
It should be noted that the valid data may include multiple data components, for example, the data component includes brightness point
Measure Y, chromatic component U and V.
Wherein, which can be by user according to the self-defined setting of actual demand, in the concrete realization, can be with
Configuration is in application control layer.
It should be noted that first preset quantity cannot be arranged it is too small, if because first preset quantity setting
It is too small, then mean receiving terminal after based on the effective blank lines of the lesser amt continuously received, that is, estimate transmission link compared with
It is good, cause to estimate inaccuracy.In this way, the valid data in the effective row subsequently parsed may be caused to have error of transmission, image to miss
Code is more, poor so as to cause image displaying quality.
In addition, first preset quantity is not easy to the excessive of setting, it, may if first preset quantity setting is excessive
The EAV that can not detect next blank lines, so as to cause cannot be introduced into lock-out state.In the concrete realization, this is first default
Quantity is less than the quantity for the blank lines that first few lines or rear several rows include in a frame image.In one possible implementation, should
First preset quantity could be provided as 5.
It further,, can after determining that continuous effective quantity reaches the first preset quantity due to during actual transmissions
It can be influenced by factors such as environment, the transmission performance of transmission link is deteriorated suddenly.In this way, effective row of receipt of subsequent may go out
Existing error of transmission may lead to the valid data received if receiving terminal in that case parses effective row of reception
It is wrong, influence the quality of image.For this purpose, for the effective row received every time, the valid data for including in effective row are carried out
Before parsing, the performance for detecting transmission link can also be continued according to the validity of effective row, to determine whether to carry out parsing behaviour
Make.
Specifically, resolved detection to effective row in include valid data before, for the effective row received every time,
Judge that whether effectively EAV in effective row and SAV, as the EAV and/or SAV invalid in effective row, counts continuous nothing
Quantity is imitated, and judges whether the consecutive invalid quantity reaches the second preset quantity, when to reach this second pre- for the consecutive invalid quantity
If when quantity, stop execute the resolved detection to effective row in include valid data operation, the EAV in effective row
When effective with SAV, by the consecutive invalid zeros data, and continue to execute the resolved detection to effective row in include it is effective
The operation of data.
Wherein, judge that the whether effective realization method of EAV and SAV in effective row may refer to above-mentioned judgement blanking
The whether effective realization method of EAV and SAV in row, is no longer discussed in detail here.
EAV and/or SAV in above-mentioned effective row refer to that the EAV in effective row is invalid in vain, alternatively, effective row
In SAV it is invalid, alternatively, the SAV and EAV in effective row are invalid.It that is to say, if in the EAV and SAV effectively in row extremely
Few there are one invalid, it is determined that effective row is invalid.
When effective row is invalid, consecutive invalid quantity is counted, and judge whether consecutive invalid quantity reaches the second present count
Amount, if the consecutive invalid quantity reaches second preset quantity, illustrates that the multiple effective rows continuously received are invalid, at this
In the case of kind, it may be possible to which transmission link is deteriorated.
When transmission link is deteriorated, the valid data mistake parsed is relatively more, even if subsequently again by the valid data
Framing is combined, the display quality of image has also been seriously affected.Therefore, when the consecutive invalid quantity reaches second preset quantity
When, receiving terminal stops executing subsequent parsing operation, also, waits for the arrival of next frame data.It that is to say, in receipt of subsequent number
During row, receiving terminal comes back to the process of statistics continuous effective quantity, that is, returns to above-mentioned steps 201.
If the consecutive invalid quantity is not up to second preset quantity, the valid data in effective row are parsed.Also,
Receiving terminal continues to be detected next data line of reception, next to judge whether next data line is effective row
The effective row of data behavior then judges whether SAV in effective row and EAV are effective.If SAV and EAV in next effective row
Effectively, then by the consecutive invalid zeroing number, count consecutive invalid quantity again, and continue to execute the resolved detection arrive it is effective
The operation for the valid data for including in row.If at least one invalid in the SAV and EAV in next effective row, continue to count
Consecutive invalid quantity, and continue to judge whether the consecutive invalid quantity reaches second preset quantity.
Wherein, which can be by user according to the self-defined setting of actual demand, in the concrete realization, can be with
Configuration is in application control layer.
It should be noted that second preset quantity can not be arranged it is too small, if second preset quantity setting mistake
It is small, then it is easy to cause image flicker.Second preset quantity can not be arranged it is excessive, if second preset quantity setting mistake
Greatly, then in transmission process, continuous mistake is more, i.e., error code is more, poor so as to cause picture quality.In a kind of possible reality
In existing mode, which could be provided as 32.
Step 203：In resolving, when the value of the SAV in the data line based on reception and the value of EAV detect again
When blank lines, terminates parsing operation, and based on default resolution ratio and receive sequential, obtain parsing according to preset data row format
Valid data reconfigure framing, to handle transmission data.
When the value of the value of the SAV in the data line based on reception and EAV detects blank lines again, determination writes one all over
Frame, receiving terminal terminate parsing operation.Later, receiving terminal is based on default resolution ratio and receives sequential, according to preset data row format
The valid data that parsing obtains are reconfigured into framing.
Specifically, receiving terminal is based on the default resolution ratio, the valid data for obtaining parsing according to preset data row format
Generate effective row, and blank lines generated according to the preset data row format, be based on the reception sequential, by the blank lines of generation and
Effective row reconfigures framing.
Wherein, which can also be given tacit consent to by user according to the self-defined setting of actual demand by receiving terminal
Setting, the embodiment of the present invention are not construed as limiting this.
It should be noted that the phenomenon that error of transmission is likely to occur due to transmission link, at this point, receiving terminal self-adapting detecting
Resolution ratio may be caused due to the transmission error code of transmission link detection malfunction.Therefore, during reconfiguring framing,
The resolution ratio that self-adapting detecting cannot be used to arrive.
It can be appreciated that receiving sequential can serve to indicate that the sequencing for receiving each effective row, may further be used for
Indicate the sequencing of the valid data in each effective row of parsing.
Wherein, which can be arranged in advance.Please refer to Fig.2 C, Fig. 2 C be based on default resolution ratio by
The obtained valid data of parsing are generated into effective row according to preset data row format, wherein the value of the EAV in effective row is
The value of OxFF00009d, SAV are OxFF000080, and effective row data of insertion as parse obtained valid data.In addition, having
The blanking interval in blanking section can be generated according to pre-set value in effect row.
D is please referred to Fig.2, Fig. 2 D are the blank lines generated according to preset data row format, wherein in the blank lines of generation
The value of EAV be OxFF0000b6, the value of SAV is OxFF0000ab, and blank lines data are inserted according to pre-defined rule
Enter, and blanking interval can also be generated according to the value of default setting.
After generating blank lines and effective row, blank lines and effective row can be reassembled by receiving terminal according to sequential is received
Frame.It should be noted that the quantity for the blank lines that first few lines and rear a few rows include in the frame being reassembled into can be set in advance
It sets.In this way, realizing the fault-tolerant processing of data, later, you can the frame being reassembled into is sent to subsequent display processing
Etc. modules.
It should be noted that in resolving, when the SAV in the data line based on reception value and EAV value again
When detecting blank lines, after terminating parsing operation, it can continue to be detected the data line of reception.In a kind of possible realization
In mode, receiving terminal can in the data line based on reception SAV and EAV detect blank lines when, continue statistics continuously have
Quantity is imitated, that is, continues the performance for estimating transmission link according to the blank lines of reception, determines whether to the effective of receipt of subsequent
Row is parsed.
In alternatively possible realization method, reception can also judge whether during receipt of subsequent data line
It detects effective row, if detecting effective row, judges whether effective row is effective, if effective row is effective, continue to parse
Valid data in effective row.If detecting that effective row is invalid, consecutive invalid quantity is counted, once detect consecutive invalid
Quantity reaches the second preset quantity, stops parsing operation.Later, the SAV in the data line based on reception and EAV detections disappear again
Hidden row, and continuous effective quantity is counted, to be continued to estimate the performance of transmission link according to the blank lines of reception.
Further, in practical application scene, each data component in valid data is restricted range, example
Such as, by taking the luminance component Y in valid data as an example, normally ranging from [16,235].And in data transmission procedure, it may
Since error of transmission leads to error code phenomenon so that the value of data component is not in the range of requiring.Alternatively, when there is bit-level
When error of transmission, it will appear noise phenomenon on the image that subsequently shows.In order to not influence the display effect of image, in resolved detection
To effective row in include valid data after, receiving terminal can also to the valid data of parsing carry out restrict processing with
And median filter process.
Specifically, it may include that following (1)-(2) realize step to carry out restrict processing to the valid data of parsing：
(1) each data component in the multiple data components for including for the valid data, if the value of the data component
The value of the data component is then revised as corresponding with the data component default by preset range corresponding more than with the data component
The upper limit value of range.
Wherein, which can also be given tacit consent to by user according to the self-defined setting of actual demand by the receiving terminal
Setting, it is not limited in the embodiment of the present invention.
It should be noted that each data component in multiple data component is corresponding with the preset range of oneself, example
Such as, the corresponding preset ranges of luminance component Y are [16,235].If transmission link mistake leads to occur error condition, data point
The value of amount may not be in corresponding preset range, in that case, in order to not influence the display quality of image, receiving terminal pair
Data component carries out restrict processing, so that data component is in corresponding preset range.If for example, the valid data
In luminance component value be 237, be more than 235, then receiving terminal the value of the luminance component is revised as 235.
(2) if the value of the valid data is less than preset range corresponding with the data component, by the value of the data component
It is revised as the lower limiting value of preset range corresponding with the data component.
For example, by taking the luminance component Y in data component as an example, if the value of the luminance component is 10, it is less than 16, then receiving terminal
The value of the luminance component is revised as 16.
Wherein, the principle of median filter process is a neighbour the value of a certain pixel in the valid data pixel
The Mesophyticum of each pixel replaces in domain, so that the pixel value of surrounding is close to actual value, to eliminate isolated noise spot, in this way,
Can so that user sees is not the signal source for being covered with noise.E (1) and Fig. 2 E (2) are please referred to Fig.2, which is to make an uproar
The display effect schematic diagram of the image of sound, Fig. 2 E (2) are the display effect schematic diagrames of the image after medium filtering.Its
In, the realization process that the valid data of parsing are carried out with median filter process may refer to the relevant technologies, not be detailed Jie here
It continues.
Restrict processing and median filter process are carried out above by valid data, blank screen, image can be improved
There is the phenomenon that noise, so as to improve the quality of image.
In addition, it is necessary to which explanation, is said for handling valid data by the way of medium filtering here
It is bright, in another embodiment, other image processing algorithms can also be used to improve picture quality, the embodiment of the present invention does not make this
It limits.
When receiving terminal carries out restrict processing and median filter process to the valid data of parsing, when parsed
The value of SAV in journey in the data line based on reception and the value of EAV detect blank lines and terminate after parsing operation again, receive
End group is in default resolution ratio and receives sequential, will pass through at restrict processing and medium filtering according to preset data row format
Valid data after reason reconfigure framing.
Wherein, above-mentioned based on default resolution ratio and reception sequential, it will pass through at restrict according to preset data row format
Valid data after reason and median filter process reconfigure framing specific implementation process may refer to it is above-mentioned based on default
The valid data that parsing obtains, the specific implementation of framing is reconfigured according to preset data row format by resolution ratio and reception sequential
Process is no longer described in detail here.
In embodiments of the present invention, in receiving data procedures, as the value of SAV in the data line based on reception and EAV
When value confirmly detects blank lines, statistics continuously receives the quantity of effective blank lines.If it is pre- that the quantity of statistics reaches first
If threshold value, then illustrate that transmission link is preferable, it is possible thereby to which it is correct to estimate the data line transmission next received.Therefore, Mei Dangjian
When measuring the effective row of data behavior of reception, the valid data in effective row are parsed, when detecting blank lines again, are determined
The one frame data end of transmission.Later, it is based on default resolution ratio and receives sequential, obtain parsing according to preset data row format
Valid data reconfigure framing.It is analyzed by EAV in the data line to reception and SAV, is parsed from effective row
Valid data, and framing is reconfigured, it avoids caused by detecting that error just abandons the data line to malfunction using CRC technologies
Row or frame losing problem are lost, the fault-tolerant processing to data is realized, improves the fault-tolerant treatment of data.
Fig. 3 A are a kind of structural schematic diagram of data processing equipment shown according to an exemplary embodiment, the data processing
Device being implemented in combination with by software, hardware or both.The data processing equipment may include：
Statistical module 310, for executing the step 201 in above-mentioned Fig. 2 B embodiments；
Parsing module 320, for executing the step 202 in above-mentioned Fig. 2 B embodiments；
Composite module 330, for executing the step 203 in above-mentioned Fig. 2 B embodiments.
Optionally, which includes judging unit and statistic unit：
The judging unit, for executing the step 2011 in above-mentioned Fig. 2 B embodiments；
The statistic unit, for executing the step 2012 in above-mentioned Fig. 2 B embodiments；
Optionally, B is please referred to Fig.3, which further includes：Judgment module 340 and trigger module 350：
The judgment module 340 judges whether EAV in effective row and SAV are equal for effective row for receiving every time
Effectively；
Trigger module 350, for as the EAV and/or SAV invalid in effective row, counting consecutive invalid quantity, and sentence
Whether the consecutive invalid quantity of breaking reaches the second preset quantity, when the consecutive invalid quantity reaches second preset quantity, touches
Parsing module 320 is sent out to stop executing parsing operation；
The trigger module 350 is additionally operable to as the EAV and SAV effective in effective row, and the consecutive invalid data are clear
Zero, and trigger parsing module 320 continues to execute parsing operation.
Optionally, C is please referred to Fig.3, which further includes：Processing module 360 carries out about for the valid data to parsing
Beam limitation processing and median filter process.
In embodiments of the present invention, in receiving data procedures, as the value of SAV in the data line based on reception and EAV
When value confirmly detects blank lines, statistics continuously receives the quantity of effective blank lines.If it is pre- that the quantity of statistics reaches first
If threshold value, then illustrate that transmission link is preferable, it is possible thereby to which it is correct to estimate the data line transmission next received.Therefore, Mei Dangjian
When measuring the effective row of data behavior of reception, the valid data in effective row are parsed, when detecting blank lines again, are determined
The one frame data end of transmission.Later, it is based on default resolution ratio and receives sequential, obtain parsing according to preset data row format
Valid data reconfigure framing.It is analyzed by EAV in the data line to reception and SAV, is parsed from effective row
Valid data, and framing is reconfigured, it avoids caused by detecting that error just abandons the data line to malfunction using CRC technologies
Row or frame losing problem are lost, the fault-tolerant processing to data is realized, improves the fault-tolerant treatment of data.
Fig. 4 is a kind of structural schematic diagram of receiving terminal shown according to an exemplary embodiment, mainly includes transmitter
401, receiver 402, memory 404, processor 403 and communication bus 405.It will be understood by those skilled in the art that in Fig. 4
The structure of the receiving terminal 400 shown does not constitute the restriction to receiving terminal, may include components more more or fewer than diagram, or
Person combines certain components or different components arrangement, and it is not limited in the embodiment of the present invention.
Wherein, which can be used for follow-up processing module transmission data, such as frame data.
The memory 404 can be used for the valid data of storing and resolving, also, the memory 404 can be used for storing
One or more operation programs and/or module for executing above-mentioned data processing method.
Wherein, the processor 403 can be a general central processor (Central Processing Unit, below
Abbreviation CPU), microprocessor, application-specific integrated circuit (Application-Specific Integrated Circuit, with
Lower abbreviation ASIC), or one or more integrated circuits for controlling the execution of the present invention program program.The processor 403 can be with
By running or execute the software program and/or module that are stored in memory 404, and calls and be stored in memory 404
Data, the method that is provided of figure 2 above A embodiments is provided.
Wherein, which may include an access, and letter is transmitted between above-mentioned processor 403 and memory 404
Breath.
It should be noted that：Above-described embodiment provide data processing equipment when realizing data processing method, only more than
The division progress of each function module is stated for example, in practical application, it can be as needed and by above-mentioned function distribution by difference
Function module complete, i.e., the internal structure of equipment is divided into different function modules, with complete it is described above whole or
Person's partial function.In addition, the data processing equipment that above-described embodiment provides belongs to same design with data processing method embodiment,
Its specific implementation process refers to embodiment of the method, and which is not described herein again.
One of ordinary skill in the art will appreciate that realizing that all or part of step of above-described embodiment can pass through hardware
It completes, relevant hardware can also be instructed to complete by program, the program can be stored in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only memory, disk or CD etc..
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (14)
1. a kind of data processing method, which is characterized in that the method includes：
As the value of the starting SAV of effective video data in the data line based on reception and the end EAV of effective video data
When value confirmly detects blank lines, continuous effective quantity is counted, the continuous effective quantity is continuously to receive effective blank lines
Quantity, the effective blank lines refer to the effective blank lines of the SAV for including and EAV；
If the continuous effective quantity reaches the first preset quantity, after the EAV for detecting next blank lines, whenever based on
When the value of SAV in the data line of reception and the value of EAV confirmly detect effective row, resolved detection to effective row in include
Valid data, the valid data include multiple data components, are used to indicate the display properties of pixel；
In resolving, when the value of the value of the SAV in the data line based on reception and EAV detects blank lines again, knot
Beam parsing operation, and based on default resolution ratio and sequential is received, the valid data for obtaining parsing according to preset data row format
Framing is reconfigured, to handle transmission data.
2. the method as described in claim 1, which is characterized in that described when based on the effective video data in the data line of reception
The value of starting SAV and the value of end EAV of effective video data when confirmly detecting blank lines, count continuous effective quantity,
Including：
When the value of SAV and the value of EAV in receiving data line and going based on the data confirmly detect blank lines, judge
Whether the blank lines are effective blank lines；
If the effective blank lines of blanking behavior, increase the continuous effective quantity, otherwise, the continuous effective is reset
Quantity.
3. method as claimed in claim 2, which is characterized in that it is described to judge whether the blank lines are effective blank lines,
Including：
The picture transmitted between SAV in SAV of the statistics in the blank lines and the continuous upper blank lines of the blank lines
Vegetarian refreshments quantity, obtains the first pixel quantity, and counts SAV in the blank lines and the blank lines are continuously next
The pixel quantity transmitted between SAV in a blank lines obtains the second pixel quantity；
The picture transmitted between EAV in EAV of the statistics in the blank lines and the continuous upper blank lines of the blank lines
Vegetarian refreshments quantity obtains third pixel quantity, and the EAV counted in the blank lines disappears with the next of the blank lines
The pixel quantity transmitted between EAV in hidden row obtains the 4th pixel quantity；
If first pixel quantity is identical as second pixel quantity, and the third pixel quantity and described the
Four pixel quantities are identical, it is determined that the effective blank lines of blanking behavior.
4. the method as described in claim 1, which is characterized in that the resolved detection to effective row in include valid data
Before, further include：
For the effective row received every time, judge EAV in effective row and SAV whether effectively；
As the EAV and/or SAV invalid in effective row, consecutive invalid quantity is counted, and judge the consecutive invalid quantity
Whether reach the second preset quantity, when the consecutive invalid quantity reaches second preset quantity, stops executing the solution
Analyse the operation for the valid data for including in the effective row detected；
As the EAV and SAV effective in effective row, by the consecutive invalid zeros data, and the solution is continued to execute
Analyse the operation for the valid data for including in the effective row detected.
5. the method as described in claim 1, which is characterized in that the resolved detection to effective row in include valid data
Later, further include：
Restrict processing and median filter process are carried out to the valid data of parsing；
Correspondingly, described based on default resolution ratio and reception sequential, the significant figure for obtaining parsing according to preset data row format
According to reconfiguring framing, including：
Based on default resolution ratio and sequential is received, will pass through restrict processing and medium filtering according to preset data row format
Treated, and valid data reconfigure framing.
6. method as claimed in claim 5, which is characterized in that the valid data of described pair of parsing carry out restrict processing,
Including：
Each data component in the multiple data components for including for the valid data, if the value of the data component is more than
The value of the data component is then revised as corresponding with the data component pre- by preset range corresponding with the data component
If the upper limit value of range；
If the value of the valid data is less than preset range corresponding with the data component, the value of the data component is repaiied
It is changed to the lower limiting value of preset range corresponding with the data component.
7. the method as described in claim 1, which is characterized in that it is described based on default resolution ratio and reception sequential, according to default
The valid data that parsing obtains are reconfigured framing by data row format, including：
Based on the default resolution ratio, effective row is generated according to the valid data that preset data row format obtains parsing, and
Blank lines are generated according to the preset data row format；
Based on the reception sequential, the blank lines of generation and effective row are reconfigured into framing.
8. a kind of data processing equipment, which is characterized in that described device includes：
Statistical module, for the value and effective video number as the starting SAV based on the effective video data in the data line of reception
According to the value of end EAV confirmly detect blank lines when, count continuous effective quantity, the continuous effective quantity is continuous receive
The quantity of effective blank lines, the effective blank lines refer to the effective blank lines of the SAV for including and EAV；
Parsing module is being examined if the continuous effective quantity for the statistical module counts reaches the first preset quantity
After the EAV for measuring next blank lines, whenever the value of the SAV in the data line based on reception and the value of EAV have confirmly detected
Imitate row when, resolved detection to effective row in include valid data, the valid data include multiple data components, for referring to
Show the display properties of pixel；
Composite module is used in the parsing module resolving, when the value and EAV of the SAV in the data line based on reception
Value when detecting blank lines again, terminate parsing operation, and based on default resolution ratio and receive sequential, according to preset data row
The valid data that parsing obtains are reconfigured framing by format, to handle transmission data.
9. device as claimed in claim 8, which is characterized in that the statistical module includes：
Judging unit, for when receive data line and based on the data go in the value of SAV and the value of EAV confirmly detect
When blank lines, judge whether the blank lines are effective blank lines；
Otherwise statistic unit, is reset for when the effective blank lines of the blanking behavior, increasing the continuous effective quantity
The continuous effective quantity.
10. device as claimed in claim 9, which is characterized in that the judging unit is used for：
The picture transmitted between SAV in SAV of the statistics in the blank lines and the continuous upper blank lines of the blank lines
Vegetarian refreshments quantity, obtains the first pixel quantity, and counts SAV in the blank lines and the blank lines are continuously next
The pixel quantity transmitted between SAV in a blank lines obtains the second pixel quantity；
The picture transmitted between EAV in EAV of the statistics in the blank lines and the continuous upper blank lines of the blank lines
Vegetarian refreshments quantity obtains third pixel quantity, and the EAV counted in the blank lines disappears with the next of the blank lines
The pixel quantity transmitted between EAV in hidden row obtains the 4th pixel quantity；
If first pixel quantity is identical as second pixel quantity, and the third pixel quantity and described the
Four pixel quantities are identical, it is determined that the effective blank lines of blanking behavior.
11. device as claimed in claim 8, which is characterized in that described device further includes：
Effectively whether judgment module judge EAV in effective row and SAV for effective row for receiving every time；
Trigger module, for as the EAV and/or SAV invalid in effective row, counting consecutive invalid quantity, and judge institute
State whether consecutive invalid quantity reaches the second preset quantity, when the consecutive invalid quantity reaches second preset quantity,
Trigger the parsing module stop executing the resolved detection to effective row in include valid data operation；
The trigger module is additionally operable to as the EAV and SAV effective in effective row, and the consecutive invalid data are clear
Zero, and trigger the parsing module continue to execute the resolved detection to effective row in include valid data operation.
12. device as claimed in claim 8, which is characterized in that described device further includes：
Processing module carries out restrict processing and median filter process for the valid data to parsing；
The composite module is additionally operable to based on default resolution ratio and receives sequential, will be through Planar Mechanisms according to preset data row format
Valid data after limitation processing and median filter process reconfigure framing.
13. device as claimed in claim 12, which is characterized in that the processing module is used for：
Each data component in the multiple data components for including for the valid data, if the value of the data component is more than
The value of the data component is then revised as corresponding with the data component pre- by preset range corresponding with the data component
If the upper limit value of range；
If the value of the valid data is less than preset range corresponding with the data component, the value of the data component is repaiied
It is changed to the lower limiting value of preset range corresponding with the data component.
14. device as claimed in claim 8, which is characterized in that the composite module is used for：
Based on the default resolution ratio, effective row is generated according to the valid data that preset data row format obtains parsing, and
Blank lines are generated according to the preset data row format；
Based on the reception sequential, the blank lines of generation and effective row are reconfigured into framing.
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| CN110995392A (en) * | 2019-11-28 | 2020-04-10 | 上海集成电路研发中心有限公司 | Data transmission method and device |
| CN115756382A (en) * | 2023-01-06 | 2023-03-07 | 北京象帝先计算技术有限公司 | Video processing method and device, electronic assembly and electronic equipment |
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