CN110324609A - Output signal synchronism detection method, device, electronic equipment and storage medium - Google Patents
Output signal synchronism detection method, device, electronic equipment and storage medium Download PDFInfo
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- CN110324609A CN110324609A CN201810278781.9A CN201810278781A CN110324609A CN 110324609 A CN110324609 A CN 110324609A CN 201810278781 A CN201810278781 A CN 201810278781A CN 110324609 A CN110324609 A CN 110324609A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
Abstract
The embodiment of the invention provides output signal synchronism detection method, device, electronic equipment and storage mediums, this method comprises: obtaining the multipath output signals generated based on test video stream, wherein, output signal includes the video frame cutting cube of each video frame in test video stream, the mark of adjacent video frames is different in test video stream, for every frame video frame, the mark for each video frame cutting cube which is cut into is identical as the mark of the video frame；Detection multipath output signals in the identical each video frame cutting cube of output timing identify whether it is identical；In the identical each video frame cutting cube of output timing of multipath output signals, different video frame cutting cubes is identified if it exists, then determines that multipath output signals are asynchronous.The output signal synchronism detection method of the embodiment of the present invention, realizes the automatic detection of output signal synchronism, compared to artificial detection, improves the detection efficiency of output signal synchronism.
Description
Technical field
The present invention relates to automatic measurement technique fields, more particularly to output signal synchronism detection method, device, electronics
Equipment and storage medium.
Background technique
With the development of video display technology, mosaic screen is widely used in the various aspects of life.Such as in cinema
Mosaic screen, the mosaic screen or the mosaic screen on the exterior wall of market at meeting scene etc..In related mosaic screen display technology, showing
When video image, video frame can be cut into the video frame cutting cube of preset quantity and size by spelling control equipment, mosaic screen
Each display area shows each video frame cutting cube respectively, in order to enhance ornamental value, needs to guarantee each video frame of same video frame
Cutting cube simultaneous display, it is therefore desirable to which the synchronizing property of output signal for spelling control equipment is detected.
In existing method, when spelling control apparatus output signal synchronism detection, artificial detection is relied primarily on.Observer needs
The synchronism that use the long-term observation output signal of naked eyes will cause human cost waste, output signal synchronism caused to detect
Low efficiency.
Summary of the invention
The embodiment of the present invention be designed to provide a kind of output signal synchronism detection method, device, electronic equipment and
Storage medium, to realize the efficiency for increasing the detection of output signal synchronism.Specific technical solution is as follows:
In a first aspect, the embodiment of the invention provides a kind of output signal synchronism detection methods, which comprises
Obtain the multipath output signals generated based on test video stream, wherein the output signal includes the test view
The video frame cutting cube of each video frame in frequency stream, the mark of adjacent video frames is different in the test video stream, regards for every frame
The mark of frequency frame, each video frame cutting cube which is cut into is identical as the mark of the video frame；
Detect the identical each video frame cutting cube of output timing in the multipath output signals identify whether it is identical；
In the identical each video frame cutting cube of output timing of the multipath output signals, different views is identified if it exists
Frequency frame cutting cube then determines that the multipath output signals are asynchronous.
Optionally, the output signal synchronism detection method of the embodiment of the present invention further include:
In the identical each video frame cutting cube of output timing of the multipath output signals, different views is identified if it exists
Frequency frame cutting cube saves the image of the identical each video frame cutting cube composition of the output timing.
Optionally, the output signal synchronism detection method of the embodiment of the present invention further include:
Obtain the play time of the identical each video frame cutting cube of output timing；
The REF video frame cutting cube in the identical each video frame cutting cube of output timing is chosen, when for each output
Sequence calculates separately the play time of each video frame cutting cube and REF video frame cutting cube in the output timing in the output timing
Play time difference, as interval time；
Compare the size of each interval time and preset time threshold；
It is greater than the interval time of the preset time threshold if it exists, then determines that the multipath output signals are asynchronous.
Optionally, the output signal synchronism detection method of the embodiment of the present invention further include:
It is greater than the interval time of the preset time threshold if it exists, is stored in the broadcasting of the REF video frame cutting cube
In time, the image of the multipath output signals composition.
Optionally, the output signal synchronism detection method of the embodiment of the present invention further include:
If the mark of the identical each video frame cutting cube of output timing is all the same in the multipath output signals, and is not present
Greater than the interval time of the preset time threshold, then determine that the multipath output signals are synchronous.
Optionally, in the output signal synchronism detection method of the embodiment of the present invention, broadcasting for video frame cutting cube is determined
The step of putting the time include:
For each video frame cutting cube, the field sync signal of the video frame cutting cube is obtained, is cut according to the video frame
The field sync signal of block determines effective video signal corresponding time, the play time as the video frame cutting cube.
Optionally, the test video stream is generated using following steps:
According to preset color configuration rule, the different test video stream of adjacent video frames picture color is generated；
In the detection multipath output signals the identical each video frame cutting cube of output timing identify whether it is identical,
Include:
Whether the picture color for detecting the identical each video frame cutting cube of output timing in the multipath output signals is identical,
If the picture color of the identical each video frame cutting cube of output timing is all the same, determine that the identical each video frame of output timing is cut
The mark for cutting block is identical, otherwise, it is determined that the mark of the identical each video frame cutting cube of output timing is not all the same.
Optionally, before the multipath output signals for obtaining and being generated based on test video stream, the method also includes:
Test video stream is input to spelling control equipment to be detected, equipment is controlled for the test video by the spelling to be detected
Stream is handled, and is obtained as multipath output signals.
Second aspect, the embodiment of the invention provides a kind of output signal synchronism detection device, described device includes:
Output signal obtains module, for obtaining the multipath output signals generated based on test video stream, wherein described defeated
Signal includes the video frame cutting cube of each video frame in the test video stream out, adjacent video frames in the test video stream
Mark is different, for every frame video frame, the mark of the mark and the video frame of each video frame cutting cube which is cut into
It is identical；
Block identification determination module is cut, is cut for detecting the identical each video frame of output timing in the multipath output signals
Cut block identify whether it is identical；
First synchronous determination module, for the identical each video frame cutting cube of the output timing in the multipath output signals
In, different video frame cutting cubes is identified if it exists, then determines that the multipath output signals are asynchronous.
Optionally, the output signal synchronism detection device of the embodiment of the present invention further include:
First image storage module, for the identical each video frame cutting cube of the output timing in the multipath output signals
In, identify different video frame cutting cubes if it exists, by the image of the identical each video frame cutting cube composition of the output timing into
Row saves.
Optionally, the output signal synchronism detection device of the embodiment of the present invention further include:
Play time obtains module, for obtaining the play time of the identical each video frame cutting cube of output timing；
Interval time determining module is cut for choosing the REF video frame in the identical each video frame cutting cube of output timing
Block is cut, for each output timing, when calculating separately the play time of each video frame cutting cube and the output in the output timing
The difference of the play time of REF video frame cutting cube in sequence, as interval time；
Time threshold determination module, the size for more each interval time and preset time threshold；
Second synchronous determination module, for being greater than the interval time of the preset time threshold if it exists, then described in judgement
Multipath output signals are asynchronous.
Optionally, the output signal synchronism detection device of the embodiment of the present invention further include:
Second image storage module is stored in described for being greater than the interval time of the preset time threshold if it exists
In the play time of REF video frame cutting cube, the image of the multipath output signals composition.
Optionally, the output signal synchronism detection device of the embodiment of the present invention further include:
Third synchronizes determination module, if for the identical each video frame cutting cube of output timing in the multipath output signals
Mark it is all the same, and there is no greater than the preset time threshold interval time, then determine that the multipath output signals are same
Step.
Optionally, the output signal synchronism detection device of the embodiment of the present invention further include:
Play time determining module obtains the field synchronization of the video frame cutting cube for being directed to each video frame cutting cube
Signal determines the effective video signal corresponding time according to the field sync signal of the video frame cutting cube, cuts as the video frame
Cut the play time of block.
Optionally, the output signal synchronism detection device of the embodiment of the present invention further include:
Test video stream generation module, for generating adjacent video frames picture color according to preset color configuration rule
Different test video stream；
The cutting block identification determination module, is specifically used for:
Whether the picture color for detecting the identical each video frame cutting cube of output timing in the multipath output signals is identical,
If the picture color of the identical each video frame cutting cube of output timing is all the same, determine that the identical each video frame of output timing is cut
The mark for cutting block is identical, otherwise, it is determined that the mark of the identical each video frame cutting cube of output timing is not all the same.
Optionally, the output signal synchronism detection device of the embodiment of the present invention further include:
Video flowing output module controls equipment for test video stream to be input to spelling to be detected, passes through the spelling to be detected
Control equipment handles the test video stream, obtains as multipath output signals.
The third aspect, the embodiment of the invention provides a kind of electronic equipment, including field programmable gate array FPGA
Module and communication module, wherein the communication module controls the communication of equipment room for realizing the FPGA module and spelling to be detected,
The FPGA module at runtime, realizes any output signal synchronism detection method of above-mentioned first aspect.
Fourth aspect, the embodiment of the invention provides a kind of computer readable storage medium, the computer-readable storage
Dielectric memory contains computer program, and the computer program realizes that above-mentioned first aspect is any described when being executed by processor
Output signal synchronism detection method.
Output signal synchronism detection method, device, electronic equipment and storage medium provided in an embodiment of the present invention obtain
The multipath output signals generated based on test video stream, wherein output signal includes the view of each frame video frame in test video stream
Frequency frame cutting cube, the mark of adjacent video frames is different in test video stream, and for every frame video frame, which is cut into each
The mark of video frame cutting cube is identical as the mark of the video frame；Detect the identical each video of output timing in multipath output signals
Identifying whether for frame cutting cube is identical；In the identical each video frame cutting cube of output timing of multipath output signals, if it exists
Different video frame cutting cubes is identified, then determines that multipath output signals are asynchronous.Realize the automatic inspection of output signal synchronism
It surveys, compared to artificial detection, improves the detection efficiency of output signal synchronism.Certainly, implement any of the products of the present invention or
It is not absolutely required to reach above all advantages simultaneously for method.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of flow diagram of the output signal synchronism detection method of the embodiment of the present invention；
Fig. 2 is a kind of schematic diagram of the output signal synchronism detection device of the embodiment of the present invention；
Fig. 3 is a kind of schematic diagram of the electronic equipment of the embodiment of the present invention；
Fig. 4 is that the electronic equipment of the embodiment of the present invention detects a kind of schematic diagram of multipath output signals synchronism.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Apparatus output signal synchronism detection method is controlled in existing spelling, relies primarily on artificial detection.Observer needs to make
The synchronism for the naked eye observing output signal for a long time will cause human cost waste, lead to output signal synchronism detection efficiency
It is low.
In view of this, the embodiment of the invention provides a kind of output signal synchronism detection methods, referring to Fig. 1, this method
Include:
S101 obtains the multipath output signals generated based on test video stream, wherein above-mentioned output signal includes above-mentioned survey
The video frame cutting cube of each video frame in video flowing is tried, the mark of adjacent video frames is different in above-mentioned test video stream, for every
The mark of frame video frame, each video frame cutting cube which is cut into is identical as the mark of the video frame.
Output signal synchronism detection method in the embodiment of the present invention can realize that detection system is by detection system
It arbitrarily can be realized the system of the output signal synchronism detection method of the embodiment of the present invention.Such as:
Detection system can be a kind of equipment, comprising: processor, memory, communication interface and bus；Processor, storage
Device is connected by bus with communication interface and completes mutual communication；Memory stores executable program code；Processor is logical
It crosses and reads in memory the executable program code that stores to run program corresponding with executable program code, for executing
The output signal synchronism detection method of the embodiment of the present invention.
Detection system can also be a kind of application program, and the output signal for executing the embodiment of the present invention at runtime is same
Step property detection method.
Detection system can also be a kind of storage medium, and for storing executable code, executable code is for executing sheet
The output signal synchronism detection method of inventive embodiments.
Every frame video frame in test video stream is cut into multiple video frame cutting cubes respectively, different video frame it is multiple
Video frame cutting cube forms output signal all the way.The mark of adjacent video frames is different in test video stream, and is directed to every frame video
The mark of frame, each video frame cutting cube which is cut into is identical as the mark of the video frame.Optionally, of the invention real
It applies in the output signal synchronism detection method of example, the mark of different video frame is different, is able to ascend the inspection of output signal synchronism
The accuracy of survey.The mark of video frame can be the feature that can arbitrarily distinguish video frame, for example, being the picture face of video frame
Color, or the figure shown for video frame or character etc..When being identified as figure or character, regarded for every frame of test video stream
Frequency frame, needs to meet in each video frame cutting cube of the video frame and contains at least one complete character or figure, to guarantee
Video frame is cut block identification and be can recognize.
S102, that detects the identical each video frame cutting cube of output timing in above-mentioned multipath output signals identifies whether phase
Together.
Output timing refers to the locating playback period of each video frame cutting cube in output signal, video frame cutting cube it is defeated
Timing is identical out refers to that these video frame blocks are in same playback period.It can be believed according to the frame synchronization of each video frame cutting cube
Number or the play time etc. of each video frame cutting cube determine playback period locating for each video frame cutting cube, and then determine each video
The output timing of frame cutting cube.Identifying whether for the identical each video frame cutting cube of detection system detection output timing is identical.
For example, above-mentioned multipath output signals be 4 tunnel output signals, i.e. output signal A, output signal B, output signal C and
Output signal D.Output signal A includes that (video frame is cut by video frame cutting cube A1, video frame cutting cube A2 and video frame cutting cube A3
Cutting block A1, video frame cutting cube A2 and video frame cutting cube A3 is three different video frame cutting cubes in timing, rather than same
Three video frame cutting cubes of one video frame), output timing is followed successively by 1,2 and 3；Output signal B includes video frame cutting cube
B1, video frame cutting cube B2 and video frame cutting cube B3, output timing are followed successively by 1,2 and 3；Output signal C includes video frame
Cutting cube C1, video frame cutting cube C2 and video frame cutting cube C3, output timing are followed successively by 1,2 and 3.Output signal D includes
Video frame cutting cube D1, video frame cutting cube D2 and video frame cutting cube D3, output timing are followed successively by 1,2 and 3.
Detection system detects video frame cutting cube A1, video frame cutting cube B1, video frame cutting cube C1 and video frame cutting
Identifying whether for block D1 is identical, and detection video frame cutting cube A2, video frame cutting cube B2, video frame cutting cube C2 and video frame are cut
That cuts block D2 identifies whether identical, detection video frame cutting cube A3, video frame cutting cube B3, video frame cutting cube C3 and video frame
Identifying whether for cutting cube D3 is identical, is only illustrated by taking three video frame cutting cubes as an example in every road output signal herein, often
The quantity of video frame cutting cube can be set as any amount in the output signal of road.
S103 is identified not if it exists in the identical each video frame cutting cube of output timing of above-mentioned multipath output signals
Same video frame cutting cube, then determine that above-mentioned multipath output signals are asynchronous.
In the identical video frame cutting cube of output timing, exists and identify different video frame cutting cubes, illustrate output signal
It is abnormal to occur the loss of video frame cutting cube or repetition transmission etc. during generation and/or output, it is known that multiple-channel output
Signal is asynchronous.
In embodiments of the present invention, in the identical video frame cutting cube of output timing of each road output signal, if it exists
Different video frame cutting cubes is identified, then determines that each road output signal is asynchronous.Realize the automatic inspection of output signal synchronism
It surveys, compared to artificial detection, improves the detection efficiency of output signal synchronism.
Optionally, the output signal synchronism detection method of the embodiment of the present invention further include:
In the identical each video frame cutting cube of output timing of above-mentioned multipath output signals, different views is identified if it exists
Frequency frame cutting cube saves the image of the identical each video frame cutting cube composition of the output timing.
In embodiments of the present invention, in the identical each video frame cutting cube of the output timing of above-mentioned multipath output signals,
Different video frame cutting cubes is identified if it exists, and the image of the identical each video frame cutting cube composition of the output timing is protected
It deposits, facilitates and subsequent output signal is analyzed.
Optionally, the output signal synchronism detection method of the embodiment of the present invention further include:
Step 1 obtains the play time of the identical each video frame cutting cube of output timing.
Detection system can be gated according to the field sync signal, line synchronising signal or valid data of each video frame cutting cube to be believed
Number etc., determine the play time of each video frame cutting cube.
Optionally, the step of determining the play time of video frame cutting cube include:
For each video frame cutting cube, the field sync signal of the video frame cutting cube is obtained, is cut according to the video frame
The field sync signal of block determines effective video signal corresponding time, the play time as the video frame cutting cube.
Step 2 chooses the REF video frame cutting cube in the identical each video frame cutting cube of output timing, for each
Output timing calculates separately the play time of each video frame cutting cube and REF video frame in the output timing in the output timing
The difference of the play time of cutting cube, as interval time.
The choosing method of REF video frame cutting cube is arbitrary choosing method.For example, in each output timing, at random
A video frame cutting cube is chosen as REF video frame cutting cube, or chooses output signal specified all the way, which is believed
Each video frame cutting cube in number is respectively as the REF video frame cutting cube for corresponding to output timing.
Step 3, the size of more each above-mentioned interval time and preset time threshold.
Preset time threshold is empirical value, requires to be tested according to actual synchronization.Synchronism requirement is stringenter, presets
Time threshold is set smaller.Optionally, preset time threshold be human eye can perceive video frame cutting cube it is asynchronous when, frequency
The minimal difference of frame cutting cube play time.
Step 4 is greater than the interval time of above-mentioned preset time threshold if it exists, then determines above-mentioned multipath output signals not
It is synchronous.
In embodiments of the present invention, it is greater than the interval time of above-mentioned preset time threshold if it exists, then determines above-mentioned multichannel
Output signal is asynchronous.It is same to improve output signal compared to artificial detection for the automatic detection for realizing output signal synchronism
The detection efficiency of step property.Output signal synchronism is quantified by preset time threshold, can be improved the standard of synchronism detection
Exactness.
In embodiments of the present invention, the detection of each video frame cutting block identification and each interval time and preset time threshold
The judgement of size can carry out simultaneously, to increase the speed of output signal synchronism detection.Each video frame can also first be carried out to cut
The detection for cutting block identification, for each output timing, when the mark of each video frame cutting cube is all the same in the output timing, than
Compared with the size of each interval time and preset time threshold in the output timing；The mark of each video frame cutting cube in the output timing
When knowing not all the same, determines that output signal is asynchronous, no longer compare each interval time and preset time threshold in the output timing
Size, to save computing resource.Can certainly first comparison interval time and preset time threshold size, for each defeated
Timing out, when each interval time is respectively less than preset time threshold in the output timing, the mark of more each video frame cutting cube
It is whether identical；When there is the interval time greater than preset time threshold in the output timing, determine that output signal is asynchronous, no
Compare again each video frame cutting cube in the output timing identify whether it is identical, to save computing resource.
Optionally, the output signal synchronism detection method of the embodiment of the present invention further include:
It is greater than the interval time of above-mentioned preset time threshold if it exists, is stored in the broadcasting of said reference video frame cutting cube
In time, the image of above-mentioned multipath output signals composition.
Using the play time of REF video frame cutting cube as fiducial time, when saving fiducial time, multipath output signals
The image of composition.
In embodiments of the present invention, it is greater than the interval time of above-mentioned preset time threshold if it exists, is stored in said reference
The play time of video frame cutting cube, the image of above-mentioned multipath output signals composition facilitate and subsequent analyze output signal.
Optionally, the output signal synchronism detection method of the embodiment of the present invention further include:
If the mark of the identical each video frame cutting cube of output timing is all the same in above-mentioned multipath output signals, and is not present
Greater than the interval time of above-mentioned preset time threshold, then determine that above-mentioned multipath output signals are synchronous.
In embodiments of the present invention, if in above-mentioned multipath output signals the identical each video frame cutting cube of output timing mark
Know all the same, and there is no the interval time greater than above-mentioned preset time threshold, then determines that above-mentioned multipath output signals are synchronous.It is real
The automatic detection for having showed output signal synchronism improves the detection efficiency of output signal synchronism compared to artificial detection.It is logical
It crosses preset time threshold to quantify output signal synchronism, can be improved the accuracy of synchronism detection.
Detection system can produce the different test video stream of adjacent video frame identification according to preset rules.Such as it generates
The different test video stream of adjacent video frames display number, or generate adjacent video frames and show the different test video stream of figure
Deng.
Optionally, above-mentioned test video stream is generated using following steps:
According to preset color configuration rule, the different test video stream of adjacent video frames picture color is generated.
Preset color configuration rule needs to meet adjacent video frames color to be arbitrarily the rule of video frame color matching
It is different.For example, detection system generates the pure color video frame of random color, and adjacent video frames picture color is different.
Optionally, above-mentioned according to preset color configuration rule, generate the different test view of adjacent video frames picture color
Frequency flows, comprising:
According to default picture color sequence, the periodically variable test video of picture color of included video frame is generated
Stream, wherein the picture color of adjacent video frames is different in above-mentioned test video stream.
Correspondingly, the mark of the identical each video frame cutting cube of output timing is in the above-mentioned above-mentioned multipath output signals of detection
It is no identical, comprising:
Whether the picture color for detecting the identical each video frame cutting cube of output timing in above-mentioned multipath output signals is identical,
If the picture color of the identical each video frame cutting cube of output timing is all the same, determine that the identical each video frame of output timing is cut
The mark for cutting block is identical, otherwise, it is determined that the mark of the identical each video frame cutting cube of output timing is not all the same.
In embodiments of the present invention, using picture color as the mark of video frame cutting cube, and judged by picture color
Whether the identical each video frame cutting cube of output timing belongs to same video frame, realizes the automatic inspection of output signal synchronism
It surveys, compared to artificial detection, improves the detection efficiency of output signal synchronism.
Optionally, before the multipath output signals that above-mentioned acquisition is generated based on test video stream, the embodiment of the present invention
Output signal synchronism detection method further include:
Test video stream is input to spelling control equipment to be detected, equipment is controlled for above-mentioned test video by above-mentioned spelling to be detected
Stream is handled, and is obtained as multipath output signals.
Test video stream is input in spelling control equipment to be detected by detection system, so that spelling to be detected controls equipment and regards test
Frequency stream is handled, and is obtained as multipath output signals.Spelling control equipment to be detected handles test video stream, including but unlimited
Test video stream is zoomed in and out in: spelling to be detected control equipment, is divided or the processing such as lamination.
In embodiments of the present invention, test video stream is input to spelling to be detected and controls equipment, controlled by above-mentioned spelling to be detected
Equipment handles above-mentioned test video stream, obtains realizing to spelling to be detected control equipment output letter for multipath output signals
Number the automatic detection of synchronism improve the detection effect that control apparatus output signal synchronism is spelled in detection compared to artificial detection
Rate.
Optionally, the output signal synchronism detection method of the embodiment of the present invention further include:
Save the synchronization sex determination result of each above-mentioned interval time and above-mentioned multipath output signals.
The synchronization sex determination result of multipath output signals includes that multipath output signals are synchronous or multipath output signals are asynchronous.
The synchronization sex determination result of each above-mentioned interval time and above-mentioned multipath output signals is saved in predeterminated position, example by detection system
Such as, it is medium to be saved in default hard disk or be saved in SD (Secure Digital Memory Card, secure data card) card.
In embodiments of the present invention, the synchronization sex determination knot of each above-mentioned interval time and above-mentioned multipath output signals is saved
Fruit facilitates and subsequent analyzes interval time and synchronous sex determination result.
Optionally, the output signal synchronism detection method of the embodiment of the present invention further include:
The synchronization sex determination result of each above-mentioned interval time and above-mentioned multipath output signals is sent to default client.
Default client is to subscribe to the Data receiver of synchronous sex determination result, such as default client can be a kind of electricity
Sub- equipment or default client can be the application product on computer or smart phone.Detection system is to default client
End send the synchronization sex determination of each interval time and multipath output signals as a result, so that default client show each interval time and
The synchronization sex determination result of multipath output signals.
In embodiments of the present invention, the same of each above-mentioned interval time and above-mentioned multipath output signals is sent to default client
Sex determination is walked as a result, realizing the remote exhibition of synchronous sex determination result.
Optionally, the output signal synchronism detection method of the embodiment of the present invention further include:
Above-mentioned multipath output signals are output on mosaic screen.
In embodiments of the present invention, multipath output signals are output on mosaic screen, it is convenient that multichannel is observed by mosaic screen
The image of output signal composition.
Referring to fig. 2, Fig. 2 is another schematic diagram of the output signal synchronism detection device of the embodiment of the present invention, the dress
It sets and includes:
Output signal obtains module 201, for obtaining the multipath output signals generated based on test video stream, wherein on
State the video frame cutting cube that output signal includes each video frame in above-mentioned test video stream, adjacent video in above-mentioned test video stream
The mark of frame is different, for every frame video frame, mark and the video frame of each video frame cutting cube which is cut into
It identifies identical；
Block identification determination module 202 is cut, for detecting the identical each video of output timing in above-mentioned multipath output signals
Identifying whether for frame cutting cube is identical；
First synchronous determination module 203, cuts for the identical each video frame of the output timing in above-mentioned multipath output signals
It cuts in block, identifies different video frame cutting cubes if it exists, then determine that above-mentioned multipath output signals are asynchronous.
In embodiments of the present invention, in the identical video frame cutting cube of output timing of each road output signal, if it exists
Different video frame cutting cubes is identified, then determines that each road output signal is asynchronous.Realize the automatic inspection of output signal synchronism
It surveys, compared to artificial detection, improves the detection efficiency of output signal synchronism.
Optionally, the output signal synchronism detection device of the embodiment of the present invention further include:
First image storage module, for the identical each video frame cutting cube of the output timing in above-mentioned multipath output signals
In, identify different video frame cutting cubes if it exists, by the image of the identical each video frame cutting cube composition of the output timing into
Row saves.
In embodiments of the present invention, in the identical each video frame cutting cube of the output timing of above-mentioned multipath output signals,
Different video frame cutting cubes is identified if it exists, and the image of the identical each video frame cutting cube composition of the output timing is protected
It deposits, facilitates and subsequent output signal is analyzed.
Optionally, the output signal synchronism detection device of the embodiment of the present invention further include:
Play time obtains module, for obtaining the play time of the identical each video frame cutting cube of output timing；
Interval time determining module is cut for choosing the REF video frame in the identical each video frame cutting cube of output timing
Block is cut, for each output timing, when calculating separately the play time of each video frame cutting cube and the output in the output timing
The difference of the play time of REF video frame cutting cube in sequence, as interval time；
Time threshold determination module, the size for more each above-mentioned interval time and preset time threshold；
Second synchronous determination module then determines above-mentioned for being greater than the interval time of above-mentioned preset time threshold if it exists
Multipath output signals are asynchronous.
In embodiments of the present invention, it is greater than the interval time of above-mentioned preset time threshold if it exists, then determines above-mentioned multichannel
Output signal is asynchronous.It is same to improve output signal compared to artificial detection for the automatic detection for realizing output signal synchronism
The detection efficiency of step property.Output signal synchronism is quantified by preset time threshold, can be improved the standard of synchronism detection
Exactness.
Optionally, the output signal synchronism detection device of the embodiment of the present invention further include:
Second image storage module is stored in above-mentioned for being greater than the interval time of above-mentioned preset time threshold if it exists
In the play time of REF video frame cutting cube, the image of above-mentioned multipath output signals composition.
In embodiments of the present invention, it is greater than the interval time of above-mentioned preset time threshold if it exists, is stored in said reference
The play time of video frame cutting cube, the image of above-mentioned multipath output signals composition facilitate and subsequent analyze output signal.
Optionally, the output signal synchronism detection device of the embodiment of the present invention further include:
Third synchronizes determination module, if for the identical each video frame cutting cube of output timing in above-mentioned multipath output signals
Mark it is all the same, and there is no greater than above-mentioned preset time threshold interval time, then determine that above-mentioned multipath output signals are same
Step.
In embodiments of the present invention, if in above-mentioned multipath output signals the identical each video frame cutting cube of output timing mark
Know all the same, and there is no the interval time greater than above-mentioned preset time threshold, then determines that above-mentioned multipath output signals are synchronous.It is real
The automatic detection for having showed output signal synchronism improves the detection efficiency of output signal synchronism compared to artificial detection.It is logical
It crosses preset time threshold to quantify output signal synchronism, can be improved the accuracy of synchronism detection.
Optionally, the output signal synchronism detection device of the embodiment of the present invention further include:
Play time determining module obtains the field synchronization of the video frame cutting cube for being directed to each video frame cutting cube
Signal determines the effective video signal corresponding time according to the field sync signal of the video frame cutting cube, cuts as the video frame
Cut the play time of block.
Optionally, the output signal synchronism detection device of the embodiment of the present invention further include:
Test video stream generation module, for generating adjacent video frames picture color according to preset color configuration rule
Different test video stream；
Above-mentioned cutting block identification determination module 202, is specifically used for:
Whether the picture color for detecting the identical each video frame cutting cube of output timing in above-mentioned multipath output signals is identical,
If the picture color of the identical each video frame cutting cube of output timing is all the same, determine that the identical each video frame of output timing is cut
The mark for cutting block is identical, otherwise, it is determined that the mark of the identical each video frame cutting cube of output timing is not all the same.
Optionally, above-mentioned test video stream generation module, is specifically used for:
According to default picture color sequence, the periodically variable test video of picture color of included video frame is generated
Stream, wherein the picture color of adjacent video frames is different in above-mentioned test video stream.
In embodiments of the present invention, using picture color as the mark of video frame cutting cube, and judged by picture color
Whether the identical each video frame cutting cube of output timing belongs to same video frame, realizes the automatic inspection of output signal synchronism
It surveys, compared to artificial detection, improves the detection efficiency of output signal synchronism.
Optionally, the output signal synchronism detection device of the embodiment of the present invention further include:
Video flowing output module controls equipment for test video stream to be input to spelling to be detected, passes through above-mentioned spelling to be detected
Control equipment handles above-mentioned test video stream, obtains as multipath output signals.
In embodiments of the present invention, test video stream is input to spelling to be detected and controls equipment, controlled by above-mentioned spelling to be detected
Equipment handles above-mentioned test video stream, obtains realizing to spelling to be detected control equipment output letter for multipath output signals
Number the automatic detection of synchronism improve the detection effect that control apparatus output signal synchronism is spelled in detection compared to artificial detection
Rate.
Optionally, the output signal synchronism detection device of the embodiment of the present invention further include:
Data memory module, for saving the synchronization sex determination knot of each above-mentioned interval time and above-mentioned multipath output signals
Fruit.
In embodiments of the present invention, the synchronization sex determination knot of each above-mentioned interval time and above-mentioned multipath output signals is saved
Fruit facilitates and subsequent analyzes interval time and synchronous sex determination result.
Optionally, the output signal synchronism detection device of the embodiment of the present invention further include:
Network module, for sending the synchronism of each above-mentioned interval time and above-mentioned multipath output signals to default client
Determine result.
In embodiments of the present invention, the same of each above-mentioned interval time and above-mentioned multipath output signals is sent to default client
Sex determination is walked as a result, realizing the remote exhibition of synchronous sex determination result.
The embodiment of the invention also provides a kind of electronic equipment, and referring to Fig. 3, which includes:
Field programmable gate array FPGA module 301 and communication module 302, wherein above-mentioned communication module 302 is used for
Realize that above-mentioned FPGA module 301 and the communication to be detected for spelling control equipment room, above-mentioned FPGA module 301 at runtime, are realized as follows
Step:
Obtain the multipath output signals generated based on test video stream, wherein it includes above-mentioned survey that output signal is stated in every road
The video frame cutting cube of the same position of every frame video frame of video flowing is tried, the mark of adjacent video frames in above-mentioned test video stream
Difference, for every frame video frame, the mark for each video frame cutting cube which is cut into is identical as the mark of the video frame；
Detect the identical each video frame cutting cube of output timing in above-mentioned multipath output signals identify whether it is identical；
In the identical each video frame cutting cube of output timing of above-mentioned multipath output signals, different views is identified if it exists
Frequency frame cutting cube then determines that above-mentioned multipath output signals are asynchronous.
In embodiments of the present invention, in the identical video frame cutting cube of output timing of each road output signal, if it exists
Different video frame cutting cubes is identified, then determines that each road output signal is asynchronous.Realize the automatic inspection of output signal synchronism
It surveys, compared to artificial detection, improves the detection efficiency of output signal synchronism.
Optionally, above-mentioned FPGA module 301 is at runtime, additionally it is possible to realize any of the above-described output signal synchronism detection side
Method.
FPGA (Field Programmable Gate Array, field programmable gate array) module 301, including
Software and logic two parts, logical gate realize the generation of test video stream and the synchronous detection of output signal；Software section is then
Entire electronic equipment is controlled, the functions such as image preservation, log recording and network linking may be implemented.It is arranged in communication module 302
There is communication interface, spelling control equipment to be detected can be connected.Communication module 302 is controlled for realizing FPGA module 301 and spelling to be detected
The communication of equipment room.
FPGA module 301 generates the periodically variable test video stream of video frame picture color, wherein in test video stream
Adjacent video frames picture color is different.Test video stream is output to spelling to be detected and controls equipment by communication module 302, so as to be detected
It spells control equipment to handle test video stream, obtain as multipath output signals.Communication module 302 is received to be set by spelling to be detected control
Multipath output signals are transmitted to FPGA module 301 by the multipath output signals that preparation is sent.Optionally, when equipment is controlled in spelling to be detected
When needing multiple test video stream input superpositions, multiple FPGA output multi-channel test videos in FPGA module 301 can be used
Stream is realized.Wherein, each FPGA in FPGA module 301 can provide the output of test video stream and two-way output signal all the way
Synchronism detection.
Optionally, when the multipath output signals to be detected for spelling control equipment are greater than two-way, the SerDes of FPGA can be passed through
The synchronism detection that (Serializer/Deserializer, serializer/de-serializers) cascade to realize multipath output signals.Such as
Shown in Fig. 4:
Spelling control equipment to be detected exports the road 2n output signal by 2n (upward 2 alignment, n is positive integer) a delivery outlet, will
The road 2n output signal is input in n FPGA.For each FPGA, video in the two-way output signal of detection access can be passed through
The color of frame cutting cube judges whether the color of video frame cutting cube in current output timing is identical, and counts field synchronization letter
Number the information such as time interval.N FPGA is linked to be 1 winding by serdes, can be using the 1st FPGA as main card, other
The information that FPGA will test, by 2- > 3- > 4- > ... -> n- > 1 is gradually sent in main card.Main card handles what each FPGA was detected
As a result, judging whether multipath output signals synchronize, the determination method whether multipath output signals synchronize and above-mentioned output signal are same
The method for determining whether multipath output signals synchronize in step property detection method is same or similar, and details are not described herein again.
Optionally, the output signal synchronism detection device of the embodiment of the present invention further include: memory.
The synchronism testing result of multipath output signals can be saved in memory by FPGA module 301.FPGA module
301 the image of nonsynchronous multipath output signals can also to be saved in memory medium.
In embodiments of the present invention, the automatic detection for realizing output signal synchronism is improved compared to artificial detection
The detection efficiency of output signal synchronism.Output signal synchronism is quantified by preset time threshold, can be improved synchronization
Property detection accuracy.
Optionally, above-mentioned FPGA module 301, above-mentioned communication module 302 and above-mentioned memory can be complete by communication bus
At mutual communication.
The communication bus that above-mentioned electronic equipment is mentioned can be Peripheral Component Interconnect standard (Peripheral Component
Interconnect, PCI) bus or expanding the industrial standard structure (Extended Industry Standard
Architecture, EISA) bus etc..The communication bus can be divided into address bus, data/address bus, control bus etc..For just
It is only indicated with a thick line in expression, figure, it is not intended that an only bus or a type of bus.
Communication interface is for the communication between above-mentioned electronic equipment and other equipment.
Memory may include random access memory (Random Access Memory, RAM), also may include non-easy
The property lost memory (Non-Volatile Memory, NVM), for example, at least a magnetic disk storage.Optionally, memory may be used also
To be storage device that at least one is located remotely from aforementioned processor.
The embodiment of the invention also provides a kind of computer readable storage medium, above-mentioned computer readable storage medium memory
Computer program is contained, appeal computer program realizes following steps when being executed by processor:
Obtain the multipath output signals generated based on test video stream, wherein it includes above-mentioned survey that output signal is stated in every road
The video frame cutting cube of the same position of every frame video frame of video flowing is tried, the mark of adjacent video frames in above-mentioned test video stream
Difference, for every frame video frame, the mark for each video frame cutting cube which is cut into is identical as the mark of the video frame；
Detect the identical each video frame cutting cube of output timing in above-mentioned multipath output signals identify whether it is identical；
In the identical each video frame cutting cube of output timing of above-mentioned multipath output signals, different views is identified if it exists
Frequency frame cutting cube then determines that above-mentioned multipath output signals are asynchronous.
In embodiments of the present invention, in the identical video frame cutting cube of output timing of each road output signal, if it exists
Different video frame cutting cubes is identified, then determines that each road output signal is asynchronous.Realize the automatic inspection of output signal synchronism
It surveys, compared to artificial detection, improves the detection efficiency of output signal synchronism.
Optionally, when upper computer program is executed by processor, additionally it is possible to realize any of the above-described output signal synchronism inspection
Survey method.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
Each embodiment in this specification is all made of relevant mode and describes, same and similar portion between each embodiment
Dividing may refer to each other, and each embodiment focuses on the differences from other embodiments.Especially for device,
For the embodiment of electronic equipment and storage medium, since it is substantially similar to the method embodiment, so be described relatively simple,
The relevent part can refer to the partial explaination of embodiments of method.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the scope of the present invention.It is all
Any modification, equivalent replacement, improvement and so within the spirit and principles in the present invention, are all contained in protection scope of the present invention
It is interior.
Claims (18)
1. a kind of output signal synchronism detection method, which is characterized in that the described method includes:
Obtain the multipath output signals generated based on test video stream, wherein the output signal includes the test video stream
In each video frame video frame cutting cube, the mark of adjacent video frames is different in the test video stream, for every frame video frame,
The mark for each video frame cutting cube that the video frame is cut into is identical as the mark of the video frame；
Detect the identical each video frame cutting cube of output timing in the multipath output signals identify whether it is identical；
In the identical each video frame cutting cube of output timing of the multipath output signals, different video frames is identified if it exists
Cutting cube then determines that the multipath output signals are asynchronous.
2. the method according to claim 1, wherein the method also includes:
In the identical each video frame cutting cube of output timing of the multipath output signals, different video frames is identified if it exists
Cutting cube saves the image of the identical each video frame cutting cube composition of the output timing.
3. the method according to claim 1, wherein the method also includes:
Obtain the play time of the identical each video frame cutting cube of output timing；
The REF video frame cutting cube in the identical each video frame cutting cube of output timing is chosen, for each output timing, is divided
The play time of each video frame cutting cube in the output timing is not calculated to broadcast with REF video frame cutting cube in the output timing
The difference for putting the time, as interval time；
Compare the size of each interval time and preset time threshold；
It is greater than the interval time of the preset time threshold if it exists, then determines that the multipath output signals are asynchronous.
4. according to the method described in claim 3, it is characterized in that, the method also includes:
It is greater than the interval time of the preset time threshold if it exists, is stored in the play time of the REF video frame cutting cube
In, the image of the multipath output signals composition.
5. according to the method described in claim 3, it is characterized in that, the method also includes:
If the mark of the identical each video frame cutting cube of output timing is all the same in the multipath output signals, and there is no be greater than
The interval time of the preset time threshold then determines that the multipath output signals are synchronous.
6. according to the method described in claim 3, it is characterized in that, the step of determining the play time of video frame cutting cube is wrapped
It includes:
For each video frame cutting cube, the field sync signal of the video frame cutting cube is obtained, according to the video frame cutting cube
Field sync signal determines effective video signal corresponding time, the play time as the video frame cutting cube.
7. the method according to claim 1, wherein the test video stream is generated using following steps:
According to preset color configuration rule, the different test video stream of adjacent video frames picture color is generated；
The identical each video frame cutting cube of output timing identifies whether identical, packet in the detection multipath output signals
It includes:
Whether the picture color for detecting the identical each video frame cutting cube of output timing in the multipath output signals is identical, if defeated
The picture color of the identical each video frame cutting cube of timing is all the same out, then determines the identical each video frame cutting cube of output timing
Mark it is identical, otherwise, it is determined that the mark of the identical each video frame cutting cube of output timing is not all the same.
8. the method according to claim 1, wherein defeated in the multichannel that the acquisition is generated based on test video stream
Out before signal, the method also includes:
Test video stream is input to spelling control equipment to be detected, equipment is controlled by the spelling to be detected and flows into the test video
Row processing, obtains multipath output signals.
9. a kind of output signal synchronism detection device, which is characterized in that described device includes:
Output signal obtains module, for obtaining the multipath output signals generated based on test video stream, wherein the output letter
It number include the video frame cutting cube of each video frame in the test video stream, the mark of adjacent video frames in the test video stream
Difference, for every frame video frame, the mark for each video frame cutting cube which is cut into is identical as the mark of the video frame；
Block identification determination module is cut, for detecting the identical each video frame cutting cube of output timing in the multipath output signals
Identify whether it is identical；
First synchronous determination module, in the identical each video frame cutting cube of the output timing in the multipath output signals,
Different video frame cutting cubes is identified if it exists, then determines that the multipath output signals are asynchronous.
10. device according to claim 9, which is characterized in that described device further include:
First image storage module, in the identical each video frame cutting cube of the output timing in the multipath output signals,
Different video frame cutting cubes is identified if it exists, and the image of the identical each video frame cutting cube composition of the output timing is protected
It deposits.
11. device according to claim 9, which is characterized in that described device further include:
Play time obtains module, for obtaining the play time of the identical each video frame cutting cube of output timing；
Interval time determining module, for choosing the cutting of the REF video frame in the identical each video frame cutting cube of output timing
Block calculates separately the play time of each video frame cutting cube and the output timing in the output timing for each output timing
The difference of the play time of middle REF video frame cutting cube, as interval time；
Time threshold determination module, the size for more each interval time and preset time threshold；
Second synchronous determination module then determines the multichannel for being greater than the interval time of the preset time threshold if it exists
Output signal is asynchronous.
12. device according to claim 11, which is characterized in that described device further include:
Second image storage module is stored in the benchmark for being greater than the interval time of the preset time threshold if it exists
In the play time of video frame cutting cube, the image of the multipath output signals composition.
13. device according to claim 11, which is characterized in that described device further include:
Third synchronizes determination module, if the mark for the identical each video frame cutting cube of output timing in the multipath output signals
Know all the same, and there is no the interval time greater than the preset time threshold, then determines that the multipath output signals are synchronous.
14. device according to claim 11, which is characterized in that described device further include:
Play time determining module, for obtaining the field sync signal of the video frame cutting cube for each video frame cutting cube,
The effective video signal corresponding time is determined according to the field sync signal of the video frame cutting cube, as the video frame cutting cube
Play time.
15. device according to claim 9, which is characterized in that described device further include:
Test video stream generation module, for it is different to generate adjacent video frames picture color according to preset color configuration rule
Test video stream；
The cutting block identification determination module, is specifically used for:
Whether the picture color for detecting the identical each video frame cutting cube of output timing in the multipath output signals is identical, if defeated
The picture color of the identical each video frame cutting cube of timing is all the same out, then determines the identical each video frame cutting cube of output timing
Mark it is identical, otherwise, it is determined that the mark of the identical each video frame cutting cube of output timing is not all the same.
16. device according to claim 9, which is characterized in that described device further include:
Video flowing output module controls equipment for test video stream to be input to spelling to be detected, is set by the spelling control to be detected
It is standby to handle the test video stream, it obtains as multipath output signals.
17. a kind of electronic equipment, which is characterized in that including field programmable gate array FPGA module and communication module,
In, the communication module is being transported for realizing the FPGA module and the communication to be detected for spelling control equipment room, the FPGA module
When row, any method and step of claim 1-8 is realized.
18. a kind of computer readable storage medium, which is characterized in that be stored with computer in the computer readable storage medium
Program realizes claim 1-8 any method and step when the computer program is executed by processor.
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