CN108769572A - Monitor video file generated, device and terminal device - Google Patents
Monitor video file generated, device and terminal device Download PDFInfo
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- CN108769572A CN108769572A CN201810387895.7A CN201810387895A CN108769572A CN 108769572 A CN108769572 A CN 108769572A CN 201810387895 A CN201810387895 A CN 201810387895A CN 108769572 A CN108769572 A CN 108769572A
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- video
- frequency band
- audio
- sound waveform
- monitor
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
Abstract
A kind of monitor video file generated of present invention offer, device and terminal device.Wherein, monitor video document generating method includes：Video-frequency band is extracted from the original monitoring video flow that monitoring camera is shot；Obtain the sound waveform figure with the video-frequency band time synchronization；Monitor video file is generated according to the video-frequency band and the sound waveform figure.The present invention from original monitoring video flow by extracting video-frequency band and obtaining the sound waveform figure with the video-frequency band time synchronization, and then monitor video file is generated according to the video-frequency band and the sound waveform figure, since the generation of event often has sound to send out, therefore, based on the monitor video file, user is when reviewing monitoring, the time of origin of outgoing event can be directly determined according to the variation of wave amplitude size on sound waveform figure, and then the time for quickly locating event generation is further carried out eye-observation, the efficiency looked into is returned so as to effectively improve video.
Description
Technical field
The present invention relates to field of information security technology, and in particular to a kind of monitor video file generated, device and terminal are set
It is standby.
Background technology
Video monitoring system has been widely used in daily life as a kind of social security system system, bank, quotient
The public places such as field, supermarket, hotel, street corner, crossing, charge station are seen everywhere the video capture devices such as camera.This kind of system
Installation substantially increase social safty, play the role of real time monitoring and record to the behavior of criminal, for public affairs
Peace organ clear up a criminal case provides a large amount of true and reliable clues.
Video monitoring system disclosed in the prior art is that the real-time of image in monitoring range is shot with video-corder and stored, main
Purposes is to reappear the site of the accident, and the major way for reappearing the site of the accident is by playing video monitoring file, being seen using human eye
Find to the one frame frame of mode examined the picture of the site of the accident, it is this using it is artificial return look into monitor video by the way of there are many disadvantages
End in duration several hours or even longer monitor video, is looked for for example, in the case where not knowing the accurate incident time
It is tantamount to look for a needle in a haystack to site of the accident picture, moreover, the picture of partial event may be written in water, if using high speed added
Speed plays monitor video, it is more likely that and it misses site of the accident picture and causes to omit, and if using low power speed or normal speed
It plays out, then takes long.
To sum up, be based on existing video monitoring system, manually return look into the site of the accident picture when exist take long, efficiency
The problems such as low.
Invention content
In view of the above problems, the purpose of the present invention is pass through a kind of monitor video document generating method of offer, device and end
End equipment, to solve the problems, such as that it is low that current monitor video file time looks into efficiency.
First aspect present invention provides a kind of monitor video document generating method, including：The original shot from monitoring camera
Video-frequency band is extracted in beginning monitoring video flow；
Obtain the sound waveform figure with the video-frequency band time synchronization；
Monitor video file is generated according to the video-frequency band and the sound waveform figure.
In one change embodiment of first aspect present invention, the sound of the acquisition and the video-frequency band time synchronization
Oscillogram, including：
Obtain the audio-frequency information with the video-frequency band time synchronization of microphone pickup；
Sound waveform figure is generated according to the audio-frequency information.
First aspect present invention another change embodiment in, it is described obtain microphone pickup with the video-frequency band
The audio-frequency information of time synchronization, including：
It is synchronous into row clock with the monitoring camera to sound pick-up；
According to the time range of the video-frequency band, intercepted out from the audio-frequency information of the microphone pickup and the video
The audio-frequency information of section time synchronization.
Another of first aspect present invention changes in embodiment, described to generate sound waveform according to the audio-frequency information
Figure, including：
The corresponding sound waveform figure of the audio-frequency information is generated using pulse code modulation scheme.
It is described according to the video-frequency band and the sound waveform in another change embodiment of first aspect present invention
Figure generates monitor video file, including：
Establish Video coding area and waveform coding area；
The video-frequency band is loaded into the Video coding area, and the sound waveform figure is loaded into the waveform and is compiled
Code area；
According to the time shaft of the video-frequency band Video coding area and the waveform coding area are carried out together sampling and
Coding generates monitor video file.
In another change embodiment of first aspect present invention, the waveform coding area is set to the Video coding area
Lower section.
In another change embodiment of first aspect present invention, in the time shaft according to the video-frequency band to institute
It states Video coding area and the waveform coding area to be sampled and encoded together, before generating monitor video file, further includes：
Corresponding to each frame in the video-frequency band, in waveform coding area addition framing bit mark, the framing bit mark
For identifying position of the present frame in the time shaft of the video-frequency band.
It is described that sound waveform is generated according to the audio-frequency information in another change embodiment of first aspect present invention
Figure, including：
The audio-frequency information is pre-processed, pretreated audio-frequency information is obtained；
Sound waveform figure is generated according to the pretreated audio-frequency information.
Second aspect of the present invention provides a kind of monitor video file creating apparatus, including：
Video-frequency band extraction module extracts video-frequency band in the original monitoring video flow for being shot from monitoring camera；
Oscillogram acquisition module, for obtaining and the sound waveform figure of the video-frequency band time synchronization；
File generating module is monitored, for generating monitor video file according to the video-frequency band and the sound waveform figure.
In one change embodiment of second aspect of the present invention, the oscillogram acquisition module, including：
Audio-frequency information acquiring unit, the audio-frequency information with the video-frequency band time synchronization for obtaining microphone pickup；
Oscillogram generation unit, for generating sound waveform figure according to the audio-frequency information.
In another change embodiment of second aspect of the present invention, the audio-frequency information acquiring unit, including：
Clock synchronizes subelement, for synchronous into row clock with the monitoring camera to sound pick-up；
Audio truncation subunit, for audio interception according to the time range of the video-frequency band, from the microphone pickup
Audio-frequency information in intercept out audio-frequency information with the video-frequency band time synchronization.
Another of second aspect of the present invention changes in embodiment, the oscillogram generation unit, including：
Oscillogram generates subelement, for generating the corresponding sound waves of the audio-frequency information using pulse code modulation scheme
Shape figure.
In another change embodiment of second aspect of the present invention, the monitoring file generating module, including：
Unit is established in code area, for establishing Video coding area and waveform coding area；
Code area is loaded into unit, for the video-frequency band to be loaded into the Video coding area, and by the sound waves
Shape figure is loaded into the waveform coding area；
Coding unit, for the time shaft according to the video-frequency band to the Video coding area and the waveform coding area one
And sampled and encoded, generate monitor video file.
In another change embodiment of second aspect of the present invention, the waveform of unit foundation is established in the code area
Code area is set to the lower section in the Video coding area.
In another change embodiment of second aspect of the present invention, the monitoring file generating module further includes：
Framing bit identifies unit, and for corresponding to each frame in the video-frequency band, framing bit is added in the waveform coding area
Mark, the framing bit mark is for identifying position of the present frame in the time shaft of the video-frequency band.
In another change embodiment of second aspect of the present invention, the oscillogram generation unit, including：
Pretreatment subelement obtains pretreated audio-frequency information for being pre-processed to the audio-frequency information；
Oscillogram generates subelement, for generating sound waveform figure according to the pretreated audio-frequency information.
Third aspect present invention provides a kind of terminal device, including：It memory, processor and is stored on the memory
And the computer program that can be run on the processor, the present invention is executed when the processor runs the computer program to be carried
The monitor video document generating method of confession.
The monitor video document generating method that first aspect present invention provides, including：It is shot from monitoring camera original
Video-frequency band is extracted in monitoring video flow；Obtain the sound waveform figure with the video-frequency band time synchronization；According to the video-frequency band and
The sound waveform figure generates monitor video file.The present invention from original monitoring video flow by extracting video-frequency band and acquisition
With the sound waveform figure of the video-frequency band time synchronization, and then monitoring is generated according to the video-frequency band and the sound waveform figure and is regarded
Frequency file, since the generation of event often has sound to send out, it is based on the monitor video file, user is reviewing prison
When control, the time of origin of outgoing event can be directly determined according to the variation of wave amplitude size on sound waveform figure, and then rapidly fixed
The time that position occurs to event is further carried out eye-observation, and the efficiency looked into is returned so as to effectively improve video.
The terminal device that monitor video file creating apparatus that second aspect of the present invention provides, the third aspect provide, and it is upper
The monitor video document generating method of first aspect offer is stated for identical inventive concept, advantageous effect having the same.
Description of the drawings
By reading the detailed description of hereafter preferred embodiment, various other advantages and benefit are common for this field
Technical staff will become clear.Attached drawing only for the purpose of illustrating preferred embodiments, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings：
Fig. 1 shows a kind of flow chart for monitor video document generating method that embodiment of the present invention is provided；
Fig. 2 shows a kind of schematic diagrames for broadcasting monitor video file that embodiment of the present invention is provided；
Fig. 3 shows a kind of schematic diagram for monitor video file creating apparatus that embodiment of the present invention is provided；
Fig. 4 shows a kind of schematic diagram for terminal device that embodiment of the present invention is provided.
Specific implementation mode
The illustrative embodiments of the disclosure are more fully described below with reference to accompanying drawings.Although showing this public affairs in attached drawing
The illustrative embodiments opened, it being understood, however, that may be realized in various forms the disclosure without the reality that should be illustrated here
The mode of applying is limited.It is to be able to be best understood from the disclosure on the contrary, providing these embodiments, and can be by this public affairs
The range opened completely is communicated to those skilled in the art.
It should be noted that unless otherwise indicated, the technical term or scientific terminology that the present invention uses should be this hair
The ordinary meaning that bright one of ordinary skill in the art are understood.
A kind of monitor video document generating method of present invention offer, device and terminal device.Below in conjunction with the accompanying drawings to this hair
Bright embodiment illustrates.
Referring to FIG. 1, a kind of stream of the monitor video document generating method provided it illustrates embodiment of the present invention
Cheng Tu, the monitor video document generating method include the following steps：
Step S101：Video-frequency band is extracted from the original monitoring video flow that monitoring camera is shot.
The monitoring document generating method that the embodiment of the present invention is provided can be applied to the external control of monitoring camera
Machine, such as monitor indoor monitoring host computer, monitoring server, the same monitoring host computer or server can external multiple prisons simultaneously
Camera is controlled, and receives the original monitoring video flow that the monitoring camera returns in real time, then according to time interval, video flowing
The factors such as size intercept out video-frequency band from the original monitoring video flow, for example, can at interval of one hour or a few hours from
Video-frequency band is intercepted out in the original monitoring video flow.
It is easily understood that the monitoring document generating method that the embodiment of the present invention is provided, can also be applied to itself have
Standby video processing, store function integral type monitor camera, the monitor camera be integrated with monitoring camera, processor,
The components such as memory can independently realize the function of dumping to the monitoring video flow of acquisition in the memory devices such as storage card.
Step S102：Obtain the sound waveform figure with the video-frequency band time synchronization.
The purpose of Time To Event is determined to realize the embodiment of the present invention according to sound waveform, the embodiment of the present invention is also
It needs to obtain the sound waveform figure with the video-frequency band time synchronization.Wherein, it is cross that the sound waveform figure, which can be with the time,
Axis is the oscillogram that the longitudinal axis generates with loudness, sound intensity etc..The time synchronization refers to the video-frequency band and the sound waveform figure
Beginning and ending time it is consistent.
In some embodiments, the acquisition and the sound waveform figure of the video-frequency band time synchronization may include：It obtains
Take the audio-frequency information with the video-frequency band time synchronization of microphone pickup；Sound waveform figure is generated according to the audio-frequency information.
In the above-described embodiment, the sound pick-up can it is separately installed, can also be with the integrated peace of the monitoring camera
It is fitted together, for example, can be with integrated installation in integral type monitor camera.It, can basis for separately installed sound pick-up
The performance parameter of sound pick-up and environmental requirement carry out adaptability installation, in order to ensure that the above sound oscillogram can accurately reflect
Go out to monitor the acoustic information in visual field, in the specific implementation, the installation site of the sound pick-up should make the sound pick-up
Monitor the field range that range covers the monitoring camera.
In some embodiments, the audio-frequency information with the video-frequency band time synchronization for obtaining microphone pickup,
May include：It is synchronous into row clock with the monitoring camera to sound pick-up；According to the time range of the video-frequency band, from described
The audio-frequency information with the video-frequency band time synchronization is intercepted out in the audio-frequency information of microphone pickup.
By synchronous into row clock with the monitoring camera to sound pick-up, the record time of the sound pick-up can be solved
The problem of with the record Time Inconsistency of the monitoring camera, specifically, being synchronized by clock, the pickup can be calculated
The clock difference of the equipment time of device and the equipment time of the monitoring camera, according to the clock difference, you can from microphone pickup
Audio-frequency information in intercept out audio-frequency information with the video-frequency band time synchronization.
In the embodiment of the present invention, according to the method that the audio-frequency information generates sound waveform figure, the prior art may be used
Any one sound waveform drawing generating method of middle offer, for example, pulse code modulation (full name in English may be used：Pulse
Code Modulation, English abbreviation：PCM) technology generates the corresponding sound waveform figure of the audio-frequency information, the sound waves
Waveform in shape figure can be impulse wave, string wave, triangular wave, square wave etc. any one.
Step S103：Monitor video file is generated according to the video-frequency band and the sound waveform figure.
In the embodiment of the present invention, the video-frequency band and the sound waveform figure can be carried out to splicing and generate monitor video text
Part, so that the monitor video file generated can show the sound at broadcasting (return and look into) while playing monitored picture
Sound oscillogram so that user determines the time for having sound to send out according to the variation of wave amplitude in the sound waveform figure, and then can be with
Quickly playing progress rate is adjusted to check by frame again at the time, the time range looked into is returned to substantially reduce video,
It improves returning for monitor video and looks into efficiency.
For example, referring to FIG. 2, a kind of broadcasting monitor video file provided it illustrates embodiment of the present invention shows
It is intended to, as shown, in monitor video file provided in an embodiment of the present invention using player plays, in broadcast interface,
The lower section meeting one sound waveform figure of simultaneous display of monitored picture, it is clear that the larger position of waveform transition, wave amplitude indicates that the time supervises
Sound is heard, it is possible to the variation of event have occurred, therefore, it is larger that playing progress rate directly can be adjusted to wave amplitude by user
It is played out at time and looks into the site of the accident to return.
Fig. 2 is please referred to, specifically, in some embodiments, it is described according to the video-frequency band and the sound waveform figure
Monitor video file is generated, may include：
Establish Video coding area and waveform coding area；
The video-frequency band is loaded into the Video coding area, and the sound waveform figure is loaded into the waveform and is compiled
Code area；
According to the time shaft of the video-frequency band Video coding area and the waveform coding area are carried out together sampling and
Coding generates monitor video file.
Wherein, the method for sampling and encoding, may be used any one video sampling method for providing in the prior art and
Method for video coding, the embodiment of the present invention are not specifically limited.In some embodiments, may be used compression coding technology into
Row coding, for example, can according to mpeg-1, mpeg-2, H.263, H.264, H.265 etc. coding standards are encoded, so as to
To reduce the file size of monitor video file, and then utilize the monitor video text of less memory space storage longer time
Part.
It is considered that in practical application, the progress bar of player is generally positioned at the lower section of broadcast interface, for the ease of user
Playing progress rate is adjusted on the progress bar with reference to sound waveform figure, in some embodiments, the waveform coding area is set to
It improves adjustment video to improve the correspondence of sound waveform figure and player progress bar and broadcasts in the lower section in the Video coding area
The efficiency of degree of putting into, further increases back and looks into efficiency.
It is considered that in the player of part, the length of progress bar and the width of broadcast interface are inconsistent, in this case, meeting
The correspondence of sound waveform figure and player progress bar is seriously affected, and then influences adjustment of the user to playing progress rate, in consideration of it,
Referring to FIG. 2, in some embodiments, framing bit mark can also be arranged on the sound waveform figure, framing bit mark can
With reproduction time and along the sound waveform figure transverse shifting, to play the function of identifying currently playing progress, in this way, adjusting
When sliding block on progress bar, with the variation of monitored picture, the framing bit mark also can be with reproduction time synchronizing moving to identify
Playing progress rate can also be intuitively presented to the user, to carry by playing progress rate by the above embodiment with patterned way
High user adjusts the efficiency of video playing progress, further increases back and looks into efficiency.
In the specific implementation mode of the above embodiment, it can exist corresponding to the video frame in each video frame
A framing bit mark is added in position in time shaft on the sound waveform figure, in this way, in playing process, with video
The variation of frame, the framing bit mark can show the effect moved with reproduction time.For example, in some embodiments,
The time shaft according to the video-frequency band is sampled and is encoded together to Video coding area and the waveform coding area,
Before generating monitor video file, further include：Corresponding to each frame in the video-frequency band, frame is added in the waveform coding area
Bit identification, the framing bit mark is for identifying position of the present frame in the time shaft of the video-frequency band.
More than, for a kind of embodiment explanation of monitor video document generating method provided by the invention, the embodiment of the present invention
By extracting video-frequency band from original monitoring video flow and obtaining the sound waveform figure with the video-frequency band time synchronization, in turn
Monitor video file is generated according to the video-frequency band and the sound waveform figure, since the generation of event often has sound to send out
, therefore, it is based on the monitor video file, user, can be according to the change of wave amplitude size on sound waveform figure when reviewing monitoring
The time changed the time of origin for directly determining outgoing event, and then quickly locate event generation is further carried out human eye sight
It examines, the efficiency looked into is returned so as to effectively improve video.
It is considered that in practical applications, in the sound waveform figure generated according to the audio-frequency information of microphone pickup, wave amplitude
Variation range may be bigger, for example, the wave amplitude may correspond to 0-150 decibels of range, in this way, in the sound waveform
In figure, 30 decibels of corresponding wave amplitudes just seem unobvious, especially are easier to be ignored when sound waveform figure is relatively narrow, and
The purpose of the embodiment of the present invention essentially consists in when instruction user has issued sound, therefore, in some changes of the embodiment of the present invention
It is described that sound waveform figure is generated according to the audio-frequency information in more embodiment, may include：
The audio-frequency information is pre-processed, pretreated audio-frequency information is obtained；
Sound waveform figure is generated according to the pretreated audio-frequency information.
Wherein, the pretreatment may include the processing such as noise reduction, amplification, peak clipping, when it is implemented, in order to more obvious
It embodies difference of the sound with and without between and avoids the influence of amount of bass noise, in some embodiments, the pre- place
Reason, can be by the audio-frequency information, and the sound intensity is amplified processing between 15-40 decibels of part, and the sound intensity is more than 80 points
The part of shellfish carries out reduction processing, so that can more be highlighted according to the sound waveform figure that pretreated audio-frequency information generates
Go out sound whether there is or not difference, more easily observe, user avoided to omit the smaller situation of wave amplitude, improve video and return the success rate looked into
And accuracy, avoid under-enumeration.
In the above-described embodiment, a kind of monitor video document generating method is provided, corresponding, the present invention is also
A kind of monitor video file creating apparatus is provided.Referring to FIG. 3, a kind of its monitor video for being provided by embodiment of the present invention
The schematic diagram of file creating apparatus.Since device embodiment is substantially similar to embodiment of the method, so describe fairly simple, phase
Place is closed referring to the part of embodiment of the method to illustrate.Device embodiment described below is only schematical.
As shown in figure 3, a kind of monitor video file creating apparatus 2 provided in an embodiment of the present invention, including：
Video-frequency band extraction module 21 extracts video-frequency band in the original monitoring video flow for being shot from monitoring camera；
Oscillogram acquisition module 22, for obtaining and the sound waveform figure of the video-frequency band time synchronization；
File generating module 23 is monitored, for generating monitor video text according to the video-frequency band and the sound waveform figure
Part.
In a change embodiment of the embodiment of the present invention, the oscillogram acquisition module 22, including：
Audio-frequency information acquiring unit, the audio-frequency information with the video-frequency band time synchronization for obtaining microphone pickup；
Oscillogram generation unit, for generating sound waveform figure according to the audio-frequency information.
In another change embodiment of the embodiment of the present invention, the audio-frequency information acquiring unit, including：
Clock synchronizes subelement, for synchronous into row clock with the monitoring camera to sound pick-up；
Audio truncation subunit, for audio interception according to the time range of the video-frequency band, from the microphone pickup
Audio-frequency information in intercept out audio-frequency information with the video-frequency band time synchronization.
Another in the embodiment of the present invention changes embodiment, the oscillogram generation unit, including：
Oscillogram generates subelement, for generating the corresponding sound waves of the audio-frequency information using pulse code modulation scheme
Shape figure.
In another change embodiment of the embodiment of the present invention, the monitoring file generating module 23, including：
Unit is established in code area, for establishing Video coding area and waveform coding area；
Code area is loaded into unit, for the video-frequency band to be loaded into the Video coding area, and by the sound waves
Shape figure is loaded into the waveform coding area；
Coding unit, for the time shaft according to the video-frequency band to the Video coding area and the waveform coding area one
And sampled and encoded, generate monitor video file.
In another change embodiment of the embodiment of the present invention, the waveform of unit foundation is established in the code area
Code area is set to the lower section in the Video coding area.
In another change embodiment of the embodiment of the present invention, the monitoring file generating module 23 further includes：
Framing bit identifies unit, and for corresponding to each frame in the video-frequency band, framing bit is added in the waveform coding area
Mark, the framing bit mark is for identifying position of the present frame in the time shaft of the video-frequency band.
In another change embodiment of the embodiment of the present invention, the oscillogram generation unit, including：
Pretreatment subelement obtains pretreated audio-frequency information for being pre-processed to the audio-frequency information；
Oscillogram generates subelement, for generating sound waveform figure according to the pretreated audio-frequency information.
Monitor video file creating apparatus 2 provided in an embodiment of the present invention, the monitoring provided with present invention
Video file generation method is for identical inventive concept, advantageous effect having the same.
In the above-described embodiment, a kind of monitor video document generating method and device are provided, it is corresponding, this
Invention also provides a kind of terminal device, and the terminal device can be monitoring device such as integral type monitor camera, can also be
The monitor video management equipment etc. being connect by wired mode or wireless mode with monitoring camera, can be independent calculating
Equipment can also be distributed server cluster etc..Referring to FIG. 4, Fig. 4 is a kind of terminal device provided in an embodiment of the present invention
Schematic diagram.As shown in figure 4, the terminal device 3 includes：Processor 30, memory 31, bus 32 and communication interface 33, institute
Processor 30, communication interface 33 and memory 31 is stated to connect by bus 32；Being stored in the memory 31 can be at the place
The computer program run on reason device 30, the processor 30 execute monitoring provided by the invention when running the computer program
Video file generation method.
Wherein, memory 31 may include high-speed random access memory (RAM：Random Access Memory),
May further include non-labile memory (non-volatile memory), for example, at least a magnetic disk storage.By extremely
A few communication interface 33 (can be wired or wireless) is realized logical between the system network element and at least one other network element
Letter connection can use internet, wide area network, local network, Metropolitan Area Network (MAN) etc..
Bus 32 can be isa bus, pci bus or eisa bus etc..The bus can be divided into address bus, data
Bus, controlling bus etc..Wherein, memory 31 is for storing program, and the processor 30 executes after receiving and executing instruction
Described program, the monitor video document generating method that aforementioned any embodiment of the embodiment of the present invention discloses can be applied to
In processor 30, or realized by processor 30.
Processor 30 may be a kind of IC chip, the processing capacity with signal.During realization, above-mentioned side
Each step of method can be completed by the integrated logic circuit of the hardware in processor 30 or the instruction of software form.Above-mentioned
Processor 30 can be general processor, including central processing unit (Central Processing Unit, abbreviation CPU), network
Processor (Network Processor, abbreviation NP) etc.；It can also be digital signal processor (DSP), application-specific integrated circuit
(ASIC), ready-made programmable gate array (FPGA) either other programmable logic device, discrete gate or transistor logic,
Discrete hardware components.It may be implemented or execute disclosed each method, step and the logic diagram in the embodiment of the present invention.It is general
Processor can be microprocessor or the processor can also be any conventional processor etc..In conjunction with institute of the embodiment of the present invention
The step of disclosed method, can be embodied directly in hardware decoding processor and execute completion, or with the hardware in decoding processor
And software module combination executes completion.Software module can be located at random access memory, and flash memory, read-only memory may be programmed read-only
In the storage medium of this fields such as memory or electrically erasable programmable memory, register maturation.The storage medium is located at
The step of memory 31, processor 30 reads the information in memory 31, the above method is completed in conjunction with its hardware.
Terminal device provided in an embodiment of the present invention goes out with monitor video document generating method provided in an embodiment of the present invention
In identical inventive concept, advantageous effect having the same.
It should be noted that the flow chart and block diagram in attached drawing show multiple embodiments according to the present invention system,
The architecture, function and operation in the cards of method and computer program product.In this regard, in flowchart or block diagram
Each box can represent a part for a module, section or code, the part packet of the module, section or code
Containing one or more executable instructions for implementing the specified logical function.It should also be noted that at some as the reality replaced
In existing, the function of being marked in box can also occur in a different order than that indicated in the drawings.For example, two continuous sides
Frame can essentially be basically executed in parallel, they can also be executed in the opposite order sometimes, this according to involved function and
It is fixed.It is also noted that the group of each box in block diagram and or flow chart and the box in block diagram and or flow chart
It closes, the dedicated hardware based system of function or action as defined in execution is realized, or can use specialized hardware
Combination with computer instruction is realized.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments provided by the present invention, it should be understood that disclosed device and method can pass through it
Its mode is realized.The apparatus embodiments described above are merely exemplary, for example, the division of the unit, only
A kind of division of logic function, formula that in actual implementation, there may be another division manner, in another example, multiple units or component can combine
Or it is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed phase
Coupling, direct-coupling or communication connection between mutually can be by some communication interfaces, the INDIRECT COUPLING of device or unit or
Communication connection can be electrical, machinery or other forms.
The unit illustrated as separating component may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, you can be located at a place, or may be distributed over multiple
In network element.Some or all of unit therein can be selected according to the actual needs to realize the mesh of this embodiment scheme
's.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it can also
It is that each unit physically exists alone, it can also be during two or more units be integrated in one unit.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in a computer read/write memory medium.Based on this understanding, technical scheme of the present invention is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be expressed in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be
People's computer, server or network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention.
And storage medium above-mentioned includes：USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
The various media that can store program code such as reservoir (RAM, Random Access Memory), magnetic disc or CD.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme should all cover in the claim of the present invention and the range of specification.
Claims (10)
1. a kind of monitor video document generating method, which is characterized in that including：
Video-frequency band is extracted from the original monitoring video flow that monitoring camera is shot；
Obtain the sound waveform figure with the video-frequency band time synchronization；
Monitor video file is generated according to the video-frequency band and the sound waveform figure.
2. monitor video document generating method according to claim 1, which is characterized in that the acquisition and the video-frequency band
The sound waveform figure of time synchronization, including：
Obtain the audio-frequency information with the video-frequency band time synchronization of microphone pickup；
Sound waveform figure is generated according to the audio-frequency information.
3. monitor video document generating method according to claim 2, which is characterized in that the acquisition microphone pickup
With the audio-frequency information of the video-frequency band time synchronization, including：
It is synchronous into row clock with the monitoring camera to sound pick-up；
According to the time range of the video-frequency band, when intercepted out from the audio-frequency information of the microphone pickup with the video-frequency band
Between synchronous audio-frequency information.
4. monitor video document generating method according to claim 2, which is characterized in that described according to the audio-frequency information
Sound waveform figure is generated, including：
The corresponding sound waveform figure of the audio-frequency information is generated using pulse code modulation scheme.
5. monitor video document generating method according to claim 1, which is characterized in that it is described according to the video-frequency band and
The sound waveform figure generates monitor video file, including：
Establish Video coding area and waveform coding area；
The video-frequency band is loaded into the Video coding area, and the sound waveform figure is loaded into the waveform coding
Area；
The Video coding area and the waveform coding area are sampled and are encoded together according to the time shaft of the video-frequency band,
Generate monitor video file.
6. monitor video document generating method according to claim 5, which is characterized in that the waveform coding area is set to institute
State the lower section in Video coding area.
7. monitor video document generating method according to claim 5, which is characterized in that described according to the video-frequency band
Time shaft the Video coding area and the waveform coding area are sampled and are encoded together, generate monitor video file it
Before, further include：
Corresponding to each frame in the video-frequency band, in waveform coding area addition framing bit mark, the framing bit mark is used for
Identify position of the present frame in the time shaft of the video-frequency band.
8. monitor video document generating method according to claim 2, which is characterized in that described according to the audio-frequency information
Sound waveform figure is generated, including：
The audio-frequency information is pre-processed, pretreated audio-frequency information is obtained；
Sound waveform figure is generated according to the pretreated audio-frequency information.
9. a kind of monitor video file creating apparatus, which is characterized in that including：
Video-frequency band extraction module extracts video-frequency band in the original monitoring video flow for being shot from monitoring camera；
Oscillogram acquisition module, for obtaining and the sound waveform figure of the video-frequency band time synchronization；
File generating module is monitored, for generating monitor video file according to the video-frequency band and the sound waveform figure.
10. a kind of terminal device, including：It memory, processor and is stored on the memory and can be on the processor
The computer program of operation, which is characterized in that perform claim requires 1-8 any when the processor runs the computer program
Monitor video document generating method described in.
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| CN201810387895.7A CN108769572A (en) | 2018-04-26 | 2018-04-26 | Monitor video file generated, device and terminal device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810387895.7A CN108769572A (en) | 2018-04-26 | 2018-04-26 | Monitor video file generated, device and terminal device |
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| CN111935395A (en) * | 2020-06-29 | 2020-11-13 | 联想(北京)有限公司 | Video file generation method and electronic equipment |
| CN112969068A (en) * | 2021-05-19 | 2021-06-15 | 四川省商投信息技术有限责任公司 | Monitoring video data storage and playing method and device |
| CN115150004A (en) * | 2022-07-01 | 2022-10-04 | 国仪量子(合肥)技术有限公司 | Narrow pulse generator |
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