CN106231225A - A kind of network hard disk video recorder data processing method and system - Google Patents
A kind of network hard disk video recorder data processing method and system Download PDFInfo
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- CN106231225A CN106231225A CN201610825303.6A CN201610825303A CN106231225A CN 106231225 A CN106231225 A CN 106231225A CN 201610825303 A CN201610825303 A CN 201610825303A CN 106231225 A CN106231225 A CN 106231225A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
- H04N5/77—Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television camera
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
- H04N19/423—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation characterised by memory arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/91—Television signal processing therefor
- H04N5/93—Regeneration of the television signal or of selected parts thereof
-
- 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
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Television Signal Processing For Recording (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Abstract
This application discloses a kind of network hard disk video recorder data processing method, including: obtaining the video flowing that web camera provides, described video flowing includes main bit stream and time code stream, described main bit stream and described subcategory number stream is saved in respectively in different cachings；The described main bit stream mated with the decoding capability of decoding window or described subcategory number stream is dynamically selected to be decoded in described caching.Disclosed herein as well is a kind of network hard disk video recorder data handling system.In the detailed description of the invention of the application, owing to dynamically selecting the main bit stream mated with the decoding capability of decoding window or subcategory number stream to be decoded, make NVR can support more decoding window, do not limited by the high request of the main bit stream of IPC, and when amplifying some decoding window, owing to needing the window number of display to tail off, switch to main-stream decoder, more decode resource to this channel allocation, improve the definition of video, can preferably take into account decoding window number and definition.
Description
Technical field
The application relates to field of video monitoring, particularly relates to a kind of network hard disk video recorder data processing method and system.
Background technology
When legacy network DVR (NVR) obtains web camera (IPC) code stream, it is intended that equipment to be obtained
Primary and secondary code stream is decoded preview, even gets main bit stream and just solves main bit stream, obtains time code stream and just solves time code stream.
Every NVR supports the video decoding channels of some, and the most corresponding one an of decoding channels shows picture
Seeing video window, if currently displaying picture sees video window, the most just bottom decoding channels that representative needs are the most, by
Limited in one's ability in the overall process of CPU, the decoding resource being assigned to each decoding channels can be along with increasing of decoding channels number
Diminish, and resource number directly influence the decoding capability of this passage, the most whether have the ability to the video counts sended over
According to being decoded display.
The most finally decide whether to decode the requirement of display video data to be seen itself, the code stream brought from IPC
Having two kinds, be main bit stream and time code stream respectively, the resolution of usual main bit stream is the highest, is suitable for requiring higher to definition
Occasion, and subcategory number flow point resolution all ratios are relatively low, are suitable for occasion less demanding to definition.And the high code stream of resolution is to decoding
Requirement the highest, the video that decoding capability have to reach to solve could normally show.
Therefore, use traditional preview processing method, if specifying main bit stream, owing to main bit stream is to solution when NVR connects IPC
Code requires higher, and the window that NVR can decode display is the most fewer, thus limits NVR preview screen number, it is impossible to simultaneously
Monitoring more video point, if specifying time code stream, the decoding window number that can support is many a lot, but when amplifying preview
Find during window that video is the most unintelligible, affects monitoring effect.
Summary of the invention
The application provides a kind of network hard disk video recorder data processing method and system.
According to the first aspect of the application, the application provides a kind of network hard disk video recorder data processing method, including:
Obtaining the video flowing that web camera provides, described video flowing includes main bit stream and time code stream, by described main bit stream and institute
State subcategory number stream to be saved in respectively in different cachings；
The described main bit stream mated with the decoding capability of decoding window or described subcategory number stream is dynamically selected to carry out in described caching
Decoding.
Said method, the described described main bit stream dynamically selecting to mate with the decoding capability of decoding window in described caching
Or described subcategory number stream is decoded, specifically include:
When the decoding window that described web camera is currently displaying is single window, 4 windows, 8 windows, 9 windows or 16 window, choosing
Select described main bit stream to be decoded；
When the decoding window that described web camera is currently displaying is 25 windows or 32 window, described subcategory number stream is selected to solve
Code.
Said method, also includes:
When playing back, if searching less than video recording to be played back, extracting video flowing the most in the buffer and playing out.
Said method, also includes:
Being grouped by multiple hard disks, often organize and at least include two hard disks, two hard disks often organized store data for rotation.
According to the second aspect of the application, the application provides a kind of network hard disk video recorder data handling system, including:
Receiver module, for obtaining the video flowing that web camera provides, described video flowing includes main bit stream and time code stream, by institute
State main bit stream and described subcategory number stream is saved in different cachings respectively；
Processing module, for dynamically selecting described main bit stream or the institute mated with the decoding capability of decoding window in described caching
State subcategory number stream to be decoded.
Said system, described processing module, it is additionally operable to be list when the currently displaying decoding window of described web camera
When window, 4 windows, 8 windows, 9 windows or 16 window, described main bit stream is selected to be decoded；When described web camera is current
When the decoding window of display is 25 windows or 32 window, described subcategory number stream is selected to be decoded.
Said system, also includes playback module；
Described playback module, when being used for playing back, if searching less than video recording to be played back, extracting video the most in the buffer and flowing to
Row is play.
Said system, also includes memory module；
Described memory module, for being grouped by multiple hard disks, often organizes and at least includes two hard disks, and two hard disks often organized are for taking turns
Change storage data.
Owing to have employed above technical scheme, make what the application possessed to have the beneficial effects that:
In the detailed description of the invention of the application, owing to dynamically selecting the main bit stream or secondary mated with the decoding capability of decoding window
Code stream is decoded, and makes NVR can support more decoding window, is not limited by the high request of the main bit stream of IPC, and when amplifying certain
During one decoding window, owing to needing the window number of display to tail off, switch to main-stream decoder, more to this channel allocation
Decoding resource, improves the definition of video, can preferably take into account decoding window number and definition.
Accompanying drawing explanation
Fig. 1 is the present processes flow chart in one embodiment；
Fig. 2 is the system high-level schematic functional block diagram in one embodiment of the application；
Fig. 3 is the system high-level schematic functional block diagram in another embodiment of the application.
Detailed description of the invention
Combine accompanying drawing below by detailed description of the invention the application is described in further detail.
Embodiment one:
As it is shown in figure 1, the network hard disk video recorder data processing method of the application, its a kind of embodiment, comprise the following steps:
Step 102: the video flowing that acquisition web camera provides, video flowing includes main bit stream and time code stream, by main bit stream with secondary
Code stream is saved in different cachings respectively.
Step 104: dynamically select the main bit stream mated with the decoding capability of decoding window or subcategory number stream to carry out in the buffer
Decoding.
Wherein step 104 specifically includes:
When the decoding window that web camera is currently displaying is single window, 4 windows, 8 windows, 9 windows or 16 window, select main
Code stream is decoded；
When the decoding window that web camera is currently displaying is 25 windows or 32 window, subcategory number stream is selected to be decoded.
The decoding window performance indications of the application are as follows:
1 or 4 windows: maximum can solve 1080P(1920X1080)；
8 windows: maximum can solve 1080P(1920X1080)；
9 windows: maximum can solve 960P(1280X960)；
16 windows: maximum can solve 720P(1280X720)；
25/32 window: maximum can solve D1(720X576)；
Go to mate suitable code stream according to above hardware performance index to be decoded.The primary key of existing high-definition network camera
Flow point resolution is typically 1080P, 960P, 720P, and subcategory number stream is typically the resolution of D1 or lower.
Network hard disk video recorder have employed switching at runtime primary and secondary code stream decoding mode, owing to web camera both provides master
Secondary code stream selection, usual main bit stream all reaches high definition resolution, and secondary code stream is exactly D1 (720x576) or more low resolution, NVR
Software can switch primary and secondary code stream according to the preview window number, if the currently displaying single-image of NVR or 4 pictures then decoding channels are just
Solve main bit stream, if be switched to 16 or during 32 picture decoding channels just solve time code stream, because 16 or each video during 32 preview screen
Window is smaller, high definition and D1(720x576) display effect the most as broad as long, and display window when single-image or 4 picture
Mouth is bigger, needs to show that high-definition signal can be only achieved clear effect, owing to when single-image or 4 picture, decoding channels is few, and chip
Also full HD decoding can be met.
In one embodiment, the network hard disk video recorder data processing method of the application, further comprising the steps of:
Step 106: when playing back, if searching less than video recording to be played back, extracting video flowing the most in the buffer and playing out.
The network hard disk video recorder of the application supports video instant playback function, it is simply that if user is in viewing preview video
Time, want suddenly to check the video of first tens seconds of certain passage, before the most just being leafed through the most rapidly by shirtsleeve operation tens
The video of second, the way of usual network hard disk video recorder software is all the video recording searched from video file first tens seconds, but
There is problems in that owing to video is first to leave in a caching, the most again slow from Network Capture of this way
Deposit code stream and be sent to file system, and file system also can leave the code stream received in the caching of oneself, final act system
System is just written to disk by magnetic disk drive interface.Whole procedure links of depositing is too much, therefore has time delay and produces, if being currently
The when of uniting busy, it may appear that search the video recording of the most front less than former seconds tens seconds；If it addition, current video disk (-sc) occurs
When fault can not normally be recorded a video, it is more to find the video recording of first tens seconds, so influences whether the effect of instant playback.Pin
The mode that this problem the application uses caching playback is tackled, if user wants to carry out instant playback, video recording first thumbed by software
Whether exist, if not existing, the method extracting video flowing by caching, the code stream of first tens seconds is put forward to play, by this
Even if mode network hard disk video recorder equipment does not carry out recording a video or be fitted without hard disk nor affects on instant playback at all
Effect.
In another embodiment, the network hard disk video recorder data processing method of the application, further comprising the steps of:
Step 108: be grouped by multiple hard disks, often organizes and at least includes two hard disks, and two hard disks often organized store number for rotation
According to.
Owing to present high definition code stream is the biggest, the full HD code stream of 1080P the most all reaches 4Mbit/s, high for 32 tunnels
The storage of clear code stream, the pressure of hard disk is very big, and perhaps the monitoring dedicated hard disk that some read-write efficiencies are higher can be dealt with, but right
In the common hard disc that some read-write efficiencies are relatively low, it is possible that the situation of loss of data, therefore we intend to introduce packet and deposit
The management mode of storage, allows equipment use under 4 or above hard disk number, and hard disk carries out packet storage, and each group all includes
Two or more hard disks, because two or more hard disk just can carry out rotation storage, more preferably protects hard disk life-span, and often group sets
Back-up does not share the store tasks of passage portion, so can improve the read-write efficiency of hard disk, prevent loss of data.It addition, I
Be also introduced into disk array way to manage, allow hard disk error time can carry out data recovery, disk array to be used needs
Sacrificing the memory space of some disks, this is just given user and goes to select according to the service condition of oneself.
Embodiment two:
As shown in Figure 2 and Figure 3, the network hard disk video recorder data handling system of the application, its a kind of embodiment, including receiving
Module and processing module.Receiver module, for obtaining the video flowing that web camera provides, video flowing includes main bit stream and subcategory number
Stream, is saved in different cachings respectively by main bit stream and subcategory number stream；Processing module, for dynamically selecting and decoding in the buffer
Main bit stream or the subcategory number stream of the decoding capability coupling of window are decoded.
In one embodiment, processing module, it is additionally operable to be list when the currently displaying decoding window of web camera
When window, 4 windows, 8 windows, 9 windows or 16 window, main bit stream is selected to be decoded；When the solution that web camera is currently displaying
When code window is 25 windows, 32 windows or more window, subcategory number stream is selected to be decoded.
The decoding window performance indications of the application are as follows:
1 or 4 windows: maximum can solve 1080P(1920X1080)；
8 windows: maximum can solve 1080P(1920X1080)；
9 windows: maximum can solve 960P(1280X960)；
16 windows: maximum can solve 720P(1280X720)；
25/32 window: maximum can solve D1(720X576)；
Go to mate suitable code stream according to above hardware performance index to be decoded.The primary key of existing high-definition network camera
Flow point resolution is typically 1080P, 960P, 720P, and subcategory number stream is typically the resolution of D1 or lower.
Network hard disk video recorder have employed switching at runtime primary and secondary code stream decoding mode, owing to web camera both provides master
Secondary code stream selection, usual main bit stream all reaches high definition resolution, and secondary code stream is exactly D1 (720x576) or more low resolution, NVR
Software can switch primary and secondary code stream according to the preview window number, if the currently displaying single-image of NVR or 4 pictures then decoding channels are just
Solve main bit stream, if be switched to 16 or during 32 picture decoding channels just solve time code stream, because 16 or each video during 32 preview screen
Window is smaller, high definition and D1(720x576) display effect the most as broad as long, and display window when single-image or 4 picture
Mouth is bigger, needs to show that high-definition signal can be only achieved clear effect, owing to when single-image or 4 picture, decoding channels is few, and chip
Also full HD decoding can be met.
The network hard disk video recorder data handling system of the application, it is also possible to include playback module；Playback module, be used for into
During row playback, if searching less than video recording to be played back, extracting video flowing the most in the buffer and playing out.
The network hard disk video recorder of the application supports video instant playback function, it is simply that if user is in viewing preview video
Time, want suddenly to check the video of first tens seconds of certain passage, before the most just being leafed through the most rapidly by shirtsleeve operation tens
The video of second, the way of usual network hard disk video recorder software is all the video recording searched from video file first tens seconds, but
There is problems in that owing to video is first to leave in a caching, the most again slow from Network Capture of this way
Deposit code stream and be sent to file system, and file system also can leave the code stream received in the caching of oneself, final act system
System is just written to disk by magnetic disk drive interface.Whole procedure links of depositing is too much, therefore has time delay and produces, if being currently
The when of uniting busy, it may appear that search the video recording of the most front less than former seconds tens seconds；If it addition, current video disk (-sc) occurs
When fault can not normally be recorded a video, it is more to find the video recording of first tens seconds, so influences whether the effect of instant playback.Pin
The mode that this problem the application uses caching playback is tackled, if user wants to carry out instant playback, video recording first thumbed by software
Whether exist, if not existing, the method extracting video flowing by caching, the code stream of first tens seconds is put forward to play, by this
Even if mode network hard disk video recorder equipment does not carry out recording a video or be fitted without hard disk nor affects on instant playback at all
Effect.
The network hard disk video recorder data handling system of the application, it is also possible to include memory module；Described memory module, uses
In being grouped by multiple hard disks, often organizing and at least include two hard disks, two hard disks often organized store data for rotation.
Owing to present high definition code stream is the biggest, the full HD code stream of 1080P the most all reaches 4Mbit/s, high for 32 tunnels
The storage of clear code stream, the pressure of hard disk is very big, and perhaps the monitoring dedicated hard disk that some read-write efficiencies are higher can be dealt with, but right
In the common hard disc that some read-write efficiencies are relatively low, it is possible that the situation of loss of data, therefore we intend to introduce packet and deposit
The management mode of storage, allows equipment use under 4 or above hard disk number, and hard disk carries out packet storage, and each group all includes
Two or more hard disks, because two or more hard disk just can carry out rotation storage, more preferably protects hard disk life-span, and often group sets
Back-up does not share the store tasks of passage portion, so can improve the read-write efficiency of hard disk, prevent loss of data.It addition, I
Be also introduced into disk array way to manage, allow hard disk error time can carry out data recovery, disk array to be used needs
Sacrificing the memory space of some disks, this is just given user and goes to select according to the service condition of oneself.
Above content is to combine the further description that the application is made by specific embodiment, it is impossible to assert this Shen
Being embodied as please is confined to these explanations.For the application person of an ordinary skill in the technical field, do not taking off
On the premise of the application conceives, it is also possible to make some simple deduction or replace.
Claims (8)
1. a network hard disk video recorder data processing method, it is characterised in that including:
Obtaining the video flowing that web camera provides, described video flowing includes main bit stream and time code stream, by described main bit stream and institute
State subcategory number stream to be saved in respectively in different cachings；
The described main bit stream mated with the decoding capability of decoding window or described subcategory number stream is dynamically selected to carry out in described caching
Decoding.
2. network hard disk video recorder data processing method as claimed in claim 1, it is characterised in that described in described caching
Dynamically select the described main bit stream mated with the decoding capability of decoding window or described subcategory number stream to be decoded, specifically include:
When the decoding window that described web camera is currently displaying is single window, 4 windows, 8 windows, 9 windows or 16 window, choosing
Select described main bit stream to be decoded；
When the decoding window that described web camera is currently displaying is 25 windows or 32 window, described subcategory number stream is selected to solve
Code.
3. network hard disk video recorder data processing method as claimed in claim 1 or 2, it is characterised in that also include:
When playing back, if searching less than video recording to be played back, extracting video flowing the most in the buffer and playing out.
4. network hard disk video recorder data processing method as claimed in claim 3, it is characterised in that also include:
Being grouped by multiple hard disks, often organize and at least include two hard disks, two hard disks often organized store data for rotation.
5. a network hard disk video recorder data handling system, it is characterised in that including:
Receiver module, for obtaining the video flowing that web camera provides, described video flowing includes main bit stream and time code stream, by institute
State main bit stream and described subcategory number stream is saved in different cachings respectively；
Processing module, for dynamically selecting described main bit stream or the institute mated with the decoding capability of decoding window in described caching
State subcategory number stream to be decoded.
6. network hard disk video recorder data handling system as claimed in claim 5, it is characterised in that
Described processing module, is additionally operable to be single window, 4 windows, 8 windows when the currently displaying decoding window of described web camera
When mouth, 9 windows or 16 window, described main bit stream is selected to be decoded；When the decoding window that described web camera is currently displaying
When being 25 windows or 32 window, described subcategory number stream is selected to be decoded.
7. the network hard disk video recorder data handling system as described in claim 5 or 6, it is characterised in that also include playing back mould
Block；
Described playback module, when being used for playing back, if searching less than video recording to be played back, extracting video the most in the buffer and flowing to
Row is play.
8. network hard disk video recorder data handling system as claimed in claim 7, it is characterised in that also include memory module；
Described memory module, for being grouped by multiple hard disks, often organizes and at least includes two hard disks, and two hard disks often organized are for taking turns
Change storage data.
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| CN201610825303.6A CN106231225A (en) | 2016-09-14 | 2016-09-14 | A kind of network hard disk video recorder data processing method and system |
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| CN201610825303.6A CN106231225A (en) | 2016-09-14 | 2016-09-14 | A kind of network hard disk video recorder data processing method and system |
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| CN115379158A (en) * | 2022-07-11 | 2022-11-22 | 杭州杰峰科技有限公司 | Video playing method and device, electronic equipment and computer readable storage medium |
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| CN115379158B (en) * | 2022-07-11 | 2023-11-17 | 杭州杰峰科技有限公司 | Video playing method and device, electronic equipment and computer readable storage medium |
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