CN103974013B - Carry out the method and video record equipment of video record playback - Google Patents
Carry out the method and video record equipment of video record playback Download PDFInfo
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- CN103974013B CN103974013B CN201310028084.5A CN201310028084A CN103974013B CN 103974013 B CN103974013 B CN 103974013B CN 201310028084 A CN201310028084 A CN 201310028084A CN 103974013 B CN103974013 B CN 103974013B
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Abstract
The invention discloses the method and video record equipment for carrying out video record playback, wherein, this method includes：The fileinfo of the video file after start time in setting time section is read from data storage area, by file information storage into index buffering area, the setting time section is less than playback duration section；Fileinfo is read one by one in index buffering area, judge to index whether the fileinfo number not being read in buffering area is more than or equal to given threshold, if not, the fileinfo of follow-up video file is then read from data storage area, store in index buffering area, if buffering area is indexed during storage does not have clearance spaces, the fileinfo being read is covered.The present invention program is capable of the playback of quick response video record, and can increase the video file number of playback.
Description
Technical field
The present invention relates to multimedia data processing, more particularly to carry out the method and video record of video record playback
Equipment.
Background technology
At present, carrying out the scheme of video record includes：Video record equipment gather video data, in data storage area with
The mode of video file stores video data；Each video file contains the Video data in the unit interval, the unit interval
For example, 10 seconds；While video file is stored, video record equipment also stores corresponding video file in data storage area
Fileinfo, this document packet contains the description information of corresponding video file, is specially：The corresponding video time of video file,
The information such as the address of capacity and video file in data storage area.
Stored in data storage area after video file, the playback of video record can be carried out.Existing progress video record is returned
, it is necessary to which the fileinfo of all video files in playback duration section is all read out in the scheme put, index is stored in slow
Rush area；Afterwards, then one by one the fileinfo in index buffering area is read, video is read from data storage area according to fileinfo
Data, are played out.The playback duration section is, for example, 24 hours after start time.
Using it is existing progress video record playback scheme, it is necessary to by playback duration section in all video files file
Information carries out the acquisition and broadcasting of video data again after all reading out, the time for causing response to play back is longer；Also, due to rope
The space for drawing buffering area is limited, can only store limited fileinfo in index buffering area, limits the video recording text played back
Number of packages mesh, causes the time of the Video data of playback shorter.
As fully visible, there is following defect in the existing scheme for carrying out video record playback：It is unable to quick response video record
Playback, and limit the video file number played back.
The content of the invention
The invention provides a kind of method for carrying out video record playback, this method is capable of returning for quick response video record
Put, and the video file number of playback can be increased.
The invention provides a kind of video record equipment, the video record equipment is capable of returning for quick response video record
Put, and the video file number of playback can be increased.
A kind of method for carrying out video record playback, this method includes：
The fileinfo of the video file after start time in setting time section is read from data storage area, file is believed
Breath storage is into index buffering area, and the setting time section is less than playback duration section；
Fileinfo is read one by one in index buffering area, judges the fileinfo number not being read in index buffering area
Whether given threshold is more than or equal to, if it is not, then the fileinfo of follow-up video file is read from data storage area, storage
Into index buffering area, if buffering area is indexed during storage does not have clearance spaces, the fileinfo being read is covered.
A kind of video record equipment, the video record equipment includes playback module, search interactive module, backstage search mould
Block, index buffering area and data storage area；
The playback module, receives play-back command, is sent to search interactive module；And receive from the search interaction mould
The video file of block, is played out；
The search interactive module, receives play-back command, is sent to backstage search module, and in index buffering area one by one
Fileinfo is read, video file is read from data storage area according to the fileinfo of reading, playback module is sent to；From rope
When drawing reading fileinfo in buffering area, also judge to index whether the fileinfo number not being read in buffering area is more than or waits
In given threshold, if it is not, then sending search following instructions to the backstage search module；
The backstage search module, receives play-back command, setting time section after reading start time from data storage area
The fileinfo of interior video file, by file information storage into index buffering area, when the setting time section is less than playback
Between section；Search following instructions are also received, the fileinfo of follow-up video file, storage to index buffering are read from data storage area
Qu Zhong, if buffering area is indexed during storage does not have clearance spaces, covers the fileinfo being read.
From such scheme as can be seen that in the present invention, video file after start time in setting time section is read
Fileinfo, storage is into index buffering area, and the setting time section is less than playback duration section；Read one by one in index buffering area
Fileinfo is taken, judges to index whether the fileinfo number not being read in buffering area is more than or equal to given threshold, if
It is not that the fileinfo of follow-up video file is then read from data storage area, storage is into index buffering area, if being indexed during storage
Buffering area does not have clearance spaces, then covers the fileinfo being read.The present invention stores setting time in index buffering area
Fileinfo in section, the reading of fileinfo progress video file that just can be based on storage；Because setting time section is less than back
The period is put, the time of response playback is shortened；Also, renewed simultaneously to index buffering area relaying and store up follow-up fileinfo,
If buffering area is indexed during storage does not have clearance spaces, the fileinfo being read is covered, so, although index buffering area
Space is limited, but by the way of present invention circulation storage file information, can break through the limitation of playback video file number, to return
Put the Video data in longer time section.
Brief description of the drawings
Fig. 1 carries out the method indicative flowchart of video record playback for the present invention；
Fig. 2 indexes the caching Pictorial examples one of buffering area for the present invention；
Fig. 3 carries out the method flow diagram example of video record playback for the present invention；
Fig. 4 indexes the caching Pictorial examples two of buffering area for the present invention；
Fig. 5 is the structural representation of video record equipment of the present invention.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment and accompanying drawing, to this
Invention is further described.
The present invention stores the fileinfo in the setting time section smaller than playback duration section in index buffering area,；Also,
Renewed simultaneously to index buffering area relaying and store up follow-up fileinfo, if buffering area is indexed during storage does not have clearance spaces, covered
Cover the fileinfo being read；So as to realize the playback of quick response video record, and increase the video file of playback
Number.
It is the method indicative flowchart that the present invention carries out video record playback, it comprises the following steps referring to Fig. 1：
Step 101, the fileinfo of the video file after start time in setting time section is read from data storage area,
By file information storage into index buffering area, the setting time section is less than playback duration section.
The playback duration section is, for example, 48 hours after start time, and setting time section can be arranged as required to for example
For 2 minutes after start time；Setting time can also be the time of a video file, that is, as long as can search more to
The fileinfo of one video file, so will more quickly respond playback.
Step 102, fileinfo is read one by one in index buffering area, judge the file not being read in index buffering area
Whether information number is more than or equal to given threshold, if it is not, then reading the file of follow-up video file from data storage area
Information, storage is into index buffering area, if buffering area is indexed during storage does not have clearance spaces, covers the file letter being read
Breath.
In this step, if it is judged that the fileinfo number not being read in index buffering area is more than or equal to setting
Threshold value, then without the reading of fileinfo；If it is judged that the fileinfo number not being read in index buffering area is small
In given threshold, then continue to read follow-up fileinfo；The given threshold can be chosen as needed, and for example, 20.
When storing video file in indexing buffering area, if index buffering area does not have clearance spaces, cover and read
Region in the fileinfo taken, i.e. coverage diagram 2 between base pointer and read pointer.
Store fileinfo in index buffering area, just can the fileinfo based on storage carry out video file and broadcast
Put, specifically include：
Receive play-back command；
According to the fileinfo read one by one from index buffering area, fileinfo is obtained from data storage area corresponding
Video file is played out.
Receiving play-back command can perform before step 101, it is, after play-back command is received, just carrying out file
The storage of information and the broadcasting of video file；Can also, after storage file information, carried out again if receiving play-back command
The broadcasting of video file, specifically such as, if receiving play-back command after step 101, just carries out the broadcasting of video file.
Video record equipment gathers video data in advance, stores video counts in the way of video file in data storage area
According to；Each video file contains the Video data in the unit interval, and the unit interval is, for example, 10 seconds；In storage video file
While, video record equipment also stores the fileinfo of corresponding video file in data storage area, and this document packet contains phase
The description information of video file is answered, is specially：The corresponding video time of video file, capacity and video file are in data storage
The information such as the address in area.Stored in data storage area after video file, just can carry out the playback of video record.
In storage file information in indexing buffering area, can the specific point on the basis of base pointer, in the position of write pointer instruction
Put write-in fileinfo；Correspondingly, when reading fileinfo, the point on the basis of base pointer, the position indicated in read pointer is read
Fileinfo.Referring to Fig. 2, to index in the caching schematic diagram of buffering area, figure, write pointer and read pointer are all moved towards buffering area direction
Dynamic, the region between base pointer and read pointer is to have played back the fileinfo but without covering, between read pointer and base pointer
Region not play back, i.e., the fileinfo not being read；Grey parts are the region for having been written into fileinfo in figure.Receiving
Play-back command, is carried out after video playback, and user can carry out time drag operation, repositions the start time point played back；
In this case, present invention additionally comprises the playback flow shown in Fig. 3, specifically：
Step 301, the positive dragging instruction for including time point after dragging is received.
Step 302, judge whether time point corresponding fileinfo is stored in index buffering area after dragging, if it is,
Step 303 is then performed, step 304 is otherwise performed.
Step 303, it is time point corresponding fileinfo position after dragging by read pointer location updating in index buffering area,
The position that read pointer is indicated in the updated, reads fileinfo one by one, and according to the fileinfo of reading from data storage area
Video file is read, is played back.
Step 304, index buffering area is emptied, is read from data storage area after dragging after time point in setting time section
Fileinfo, by file information storage into index buffering area.
Step 305, fileinfo is read one by one in index buffering area, according to the fileinfo of reading from data storage area
Middle reading video file, is played back.
Step 306, every time from index buffering area in read fileinfo while, also judge index buffering area in not by
Whether the fileinfo number of reading is more than or equal to given threshold, if it is not, then continuing to read subsequently from data storage area
The fileinfo of video file, storage, if buffering area is indexed during storage does not have clearance spaces, is covered into index buffering area
The fileinfo being read.
In this step, if it is judged that the fileinfo number not being read in index buffering area is more than or equal to setting
Threshold value, then without the reading of fileinfo；If it is judged that the fileinfo number not being read in index buffering area is small
In given threshold, then continue to read follow-up fileinfo.
During video playback is carried out, user can carry out button operation, the switching between just being put and put upside down；It is right
In switching to situation about putting upside down by just putting, present invention additionally comprises：
Reception is put upside down instruction；
Original write pointer is changed to base pointer, original base pointer is changed to write pointer.
Enter after line pointer replacing, still carry out video playback according to playback mode before.It is index of the present invention referring to Fig. 4
The schematic diagram example that pointer is changed in buffering area, afterwards, read pointer carry out the reading of fileinfo to the write pointer direction after change
Take.
It is above-mentioned if desired to put upside down to switch to and just put, then mode is similar will just to put the example for switching to and putting upside down, by before
Write pointer be changed to base pointer, base pointer before is changed to write pointer.
When needing to terminate video playback, user clicks on and exits button, correspondingly, present invention additionally comprises:
Receive exit instruction；
Stop reading fileinfo from index buffering area, and empty the fileinfo in index buffering area.
The present invention is stored in index buffering area after the fileinfo in setting time section, just the fileinfo based on storage
Carry out the reading of video file；Because setting time section is less than playback duration section, the time of response playback is shortened；Also, it is same
When renewed to index buffering area relaying and store up follow-up fileinfo, if buffering area is indexed during storage does not have clearance spaces, cover
The fileinfo being read, so, although the space of index buffering area is limited, but using present invention circulation storage file information
Mode, can break through playback video file number limitation, to play back the Video data in longer time section.
Be the structural representation of video record equipment of the present invention referring to Fig. 5, the video record equipment include playback module,
Search for interactive module, backstage search module, index buffering area and data storage area；
The playback module, receives play-back command, is sent to search interactive module；And receive from the search interaction mould
The video file of block, is played out；
The search interactive module, receives play-back command, is sent to backstage search module, and in index buffering area one by one
Fileinfo is read, video file is read from data storage area according to the fileinfo of reading, playback module is sent to；From rope
When drawing reading fileinfo in buffering area, also judge to index whether the fileinfo number not being read in buffering area is more than or waits
In given threshold, if it is not, then sending search following instructions to the backstage search module；
The backstage search module, receives play-back command, setting time section after reading start time from data storage area
The fileinfo of interior video file, by file information storage into index buffering area, when the setting time section is less than playback
Between section；Search following instructions are also received, the fileinfo of follow-up video file, storage to index buffering are read from data storage area
Qu Zhong, if buffering area is indexed during storage does not have clearance spaces, covers the fileinfo being read.
It is preferred that the backstage search module includes write-in submodule, the point on the basis of the base pointer for indexing buffering area will
The position that write pointer is indicated in the fileinfo write-in index buffering area read from data storage area；
The search interactive module includes reading submodule, receives after play-back command, using index the base pointer of buffering area as
Datum mark, the position indicated in read pointer, reads fileinfo one by one.
Fig. 5 video record equipment is, after play-back command is received, and just carries out the storage of fileinfo and video file is broadcast
The specific implementation put.
It is preferred that the playback module, also receives the positive dragging instruction for including time point after dragging, is sent to search and hands over
Mutual module；
The search interactive module, receives the positive dragging instruction for including time point after dragging, judges time point after dragging
Whether corresponding fileinfo is stored in index buffering area, if it is, being by read pointer location updating in index buffering area
Time point corresponding fileinfo position after dragging, the position that read pointer is indicated in the updated, reads fileinfo, and root one by one
Video file is read from data storage area according to the fileinfo of reading, playback module is sent to；If being not stored in index
Buffering area, then empty index buffering area, and sending the positive dragging to the backstage search module instructs, and in index buffering area
In read fileinfo one by one, video file is read from data storage area according to the fileinfo of reading, the backstage is sent
Module, when reading fileinfo from index buffering area, also judges that the fileinfo number not being read in index buffering area is
It is no to be more than or equal to given threshold, if it is not, then sending search following instructions to the backstage search module；
The backstage search module, receives positive dragging instruction, reads and is set after dragging after time point from data storage area
The fileinfo fixed time in section, by file information storage into index buffering area；Search following instructions are also received, are deposited from data
Storage area reads the fileinfo of follow-up video file, and storage is into index buffering area, if it is not vacant that buffering area is indexed during storage
Space, then cover the fileinfo being read.
It is preferred that the playback module, also receives instruction of putting upside down, is sent to search interactive module；
The search interactive module, receives instruction of putting upside down, and the write pointer for indexing original in buffering area is changed into base pointer, will
Original base pointer is changed to write pointer.
It is preferred that the playback module, also receives exit instruction, search interactive module is sent to；
The search interactive module, receives exit instruction, stops reading fileinfo from index buffering area, and empty index
Fileinfo in buffering area.
Video record equipment of the present invention refers to the various equipment for carrying out video data recording and playback, specific such as numeral
DVR；The video record equipment can have a recording passage, can also have multiple tracks to record passage.
When user carries out playback related operation, the present invention program searches only for the video file in very short a period of time, just
Playing back videos can be proceeded by, during playing back videos, remaining fileinfo is searched for by backstage search mission, so that
The quickly related operation of response playback.
Also, by way of setting up loop index buffering area, recorded a video simultaneously during fileinfo is searched for
Playback, so that the video file that can be played back is broken through by the video file number limitation that buffer size is brought.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements done etc. should be included within the scope of protection of the invention.
Claims (11)
1. a kind of method for carrying out video record playback, it is characterised in that this method includes：
The fileinfo of the video file after start time in setting time section is read from data storage area, fileinfo is deposited
Store up in index buffering area, the setting time section is less than playback duration section, and the fileinfo of the video file includes：It is described
The description information of video file；
Fileinfo is read one by one in index buffering area, judges in index buffering area whether is the fileinfo number that is not read
More than or equal to given threshold, if it is not, then reading the fileinfo of follow-up video file from data storage area, rope is arrived in storage
Draw in buffering area, if buffering area is indexed during storage does not have clearance spaces, cover the fileinfo being read.
2. the method as described in claim 1, it is characterised in that this method also includes：
Play-back command is received, according to the fileinfo read one by one from index buffering area, file is obtained from data storage area
The corresponding video file of information is played out.
3. the method as described in claim 1, it is characterised in that described to include file information storage to index buffering area：
The point on the basis of the base pointer for indexing buffering area, the position that write pointer is indicated is write by fileinfo；
It is described to read fileinfo one by one in index buffering area and include：The point on the basis of the base pointer for indexing buffering area, is reading
The position that pointer is indicated, reads fileinfo one by one.
4. method as claimed in claim 2, it is characterised in that this method also includes：
Receive after play-back command, also receive the positive dragging instruction for including time point after dragging；
Judge whether time point corresponding fileinfo is stored in index buffering area after dragging, if it is, index is buffered
Read pointer location updating is time point corresponding fileinfo position after dragging in area, the position that read pointer is indicated in the updated,
Fileinfo is read one by one, and video file is read from data storage area according to the fileinfo of reading, is played back；It is no
Then：
Index buffering area is emptied, then the fileinfo after dragging after time point in setting time section is read from data storage area,
By file information storage into index buffering area；
Fileinfo is read one by one in index buffering area, reads video recording text from data storage area according to the fileinfo of reading
Part, is played back；
While reading fileinfo from index buffering area, the fileinfo number not being read in index buffering area is also judged
Whether mesh is more than or equal to given threshold, if it is not, then continuing to read the file letter of follow-up video file from data storage area
Breath, storage is into index buffering area, if buffering area is indexed during storage does not have clearance spaces, covers the file letter being read
Breath.
5. method as claimed in claim 2, it is characterised in that this method also includes：
Receive after play-back command, also receive instruction of putting upside down；
Original write pointer is changed to base pointer, original base pointer is changed to write pointer.
6. method as claimed in claim 2, it is characterised in that this method also includes：
Receive after play-back command, receive exit instruction；
Stop reading fileinfo from index buffering area, and empty the fileinfo in index buffering area.
7. a kind of video record equipment, it is characterised in that the video record equipment include playback module, search interactive module, after
Platform search module, index buffering area and data storage area；
The playback module, receives play-back command, is sent to search interactive module；And receive from the search interactive module
Video file, is played out；
The search interactive module, receives play-back command, is sent to backstage search module, and read one by one in index buffering area
Fileinfo, reads video file according to the fileinfo of reading from data storage area, is sent to playback module；It is slow from index
When rushing reading fileinfo in area, also judge whether the fileinfo number not being read in index buffering area is more than or equal to and set
Threshold value is determined, if it is not, then sending search following instructions to the backstage search module；
The backstage search module, receives play-back command, is read from data storage area after start time in setting time section
The fileinfo of video file, by file information storage into index buffering area, the setting time section is less than playback duration section；
Search following instructions are also received, the fileinfo of follow-up video file is read from data storage area, are stored into index buffering area,
If buffering area is indexed during storage does not have clearance spaces, the fileinfo being read, the file letter of the video file are covered
Breath includes：The description information of the video file.
8. video record equipment as claimed in claim 7, it is characterised in that the backstage search module includes write-in submodule
Block, the point on the basis of the base pointer for indexing buffering area, by the fileinfo read from data storage area write-in index buffering area
The position that write pointer is indicated；
The search interactive module includes reading submodule, receives after play-back command, on the basis of the base pointer for indexing buffering area
Point, the position indicated in read pointer, reads fileinfo one by one.
9. video record equipment as claimed in claim 8, it is characterised in that the playback module, is also received comprising after dragging
The positive dragging instruction at time point, is sent to search interactive module；
The search interactive module, receives the positive dragging instruction for including time point after dragging, judges time point correspondence after dragging
Fileinfo whether be stored in index buffering area in, if it is, will index buffering area in read pointer location updating for dragging
Time point corresponding fileinfo position, the position that read pointer is indicated in the updated, read fileinfo one by one afterwards, and according to reading
The fileinfo taken reads video file from data storage area, is sent to playback module；If being not stored in index buffering
Area, then empty index buffering area, and sending the positive dragging to the backstage search module instructs, and in index buffering area by
Individual reading fileinfo, video file is read according to the fileinfo of reading from data storage area, background module is sent, from rope
When drawing reading fileinfo in buffering area, also judge to index whether the fileinfo number not being read in buffering area is more than or waits
In given threshold, if it is not, then sending search following instructions to the backstage search module；
The backstage search module, receives positive dragging instruction, when being set after time point after data storage area reading dragging
Between fileinfo in section, by file information storage into index buffering area；Search following instructions are also received, from data storage area
The fileinfo of follow-up video file is read, storage is into index buffering area, if buffering area is indexed during storage does not have clearance spaces,
Then cover the fileinfo being read.
10. video record equipment as claimed in claim 8, it is characterised in that the playback module, also receives instruction of putting upside down,
It is sent to search interactive module；
The search interactive module, receives instruction of putting upside down, and the write pointer for indexing original in buffering area is changed into base pointer, will be original
Base pointer be changed to write pointer.
11. video record equipment as claimed in claim 8, it is characterised in that the playback module, also receives exit instruction,
It is sent to search interactive module；
The search interactive module, receives exit instruction, stops reading fileinfo from index buffering area, and empty index buffering
Fileinfo in area.
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| CN201310028084.5A CN103974013B (en) | 2013-01-24 | 2013-01-24 | Carry out the method and video record equipment of video record playback |
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| CN201310028084.5A CN103974013B (en) | 2013-01-24 | 2013-01-24 | Carry out the method and video record equipment of video record playback |
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| CN103974013B true CN103974013B (en) | 2017-09-08 |
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| CN105142004B (en) * | 2015-08-28 | 2018-09-04 | 深圳Tcl数字技术有限公司 | Multimedia file read method and device |
| CN107018040A (en) * | 2017-02-27 | 2017-08-04 | 杭州天宽科技有限公司 | A kind of port data collection, the implementation method for caching and showing |
| CN110971857B (en) | 2018-09-28 | 2021-04-27 | 杭州海康威视***技术有限公司 | Video playback method and device and computer readable storage medium |
| CN111866419B (en) * | 2019-04-24 | 2022-05-31 | 杭州海康微影传感科技有限公司 | Thermal imaging image display method and device and thermal imaging equipment |
| CN111866549B (en) * | 2019-04-29 | 2023-03-24 | 腾讯科技（深圳）有限公司 | Video processing method and device, terminal and storage medium |
| CN111614997B (en) * | 2020-05-11 | 2022-04-15 | 浙江大华技术股份有限公司 | Far-end video playback method, device, equipment and medium |
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