CN104240741A - Method for performing video dotting and searching in video recording, and video recording equipment thereof - Google Patents
Method for performing video dotting and searching in video recording, and video recording equipment thereof Download PDFInfo
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- CN104240741A CN104240741A CN201310226411.8A CN201310226411A CN104240741A CN 104240741 A CN104240741 A CN 104240741A CN 201310226411 A CN201310226411 A CN 201310226411A CN 104240741 A CN104240741 A CN 104240741A
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Abstract
The invention discloses a method for performing video dotting and searching in video image recording, and video recording equipment thereof, wherein the method comprises the steps of: receiving video data, extracting a time point from I-frame data of the video data, determining an offset address of the I-frame data in a video storage area, storing each piece of I-frame information of the I-frame data into an I-frame information storage area; storing the video data into the video storage area; receiving dotting information which comprises a dotting content and a dotting time, and storing the dotting information into a dotting information storage area; receiving information reading instruction, reading and displaying each piece of I-frame information from the I-frame information stage area, reading and displaying the dotting information from the dotting information storage area; receiving a searching instruction which contains a preset dotting time, acquiring a corresponding offset address from the displayed I-frame information at the preset dotting time, and reading corresponding video data from the video storage area through the offset address for playing. The method according to the solution provided by the invention can improve speed for positioning the video data according to the dotting information.
Description
Technical field
The present invention relates to video record technology, particularly relate in video record and carry out method that video gets ready and search and video record equipment.
Background technology
In the scheme of video record, video record equipment receives from web camera video data, stores.Wherein, web camera carries out data acquisition to video monitoring scene, sends to video record equipment after coding; Video data after coding comprises multiple I frame data, and I frame data comprise time point.
Below video is got ready and be described, in the process of video acquisition, in order to mark the video data paid close attention to, generating at the corresponding time point of video data and getting information ready, getting packets of information ready containing getting content and dotting time ready.Afterwards, just can according to getting information quick position ready to the video data paid close attention to.Specifically to inquest scene, interrogator's meeting and examined certain information by interrogator in Interrogation Procedure, as crime time, crime place, and to the key point that whole using case trial electric plays an important role in commit a crime course; Interrogator can carry out record to this part information, and namely the content of record gets content ready, also can record hearing time point at that time, i.e. dotting time simultaneously.If desired carry out review or transfer the files checking to hearing process afterwards, can according to getting information quick position ready to the video scene of inquesting at that time.
Existing video is got ready in scheme, the information of getting ready generated is uploaded onto the server; When carrying out video fast finding, obtain from server and get information ready, extract the dotting time in the information of getting ready, the I frame data in the video data stored are searched one by one, find the I frame data consistent with dotting time, play from the I frame data found.
To sum up, existingly carry out in the scheme that video gets ready and search, information of getting ready is carried out separating with video data and is stored, and when carrying out video retrieval, need judge one by one the I frame data in video data, the used time is longer, and speed is slow.
Summary of the invention
The invention provides in a kind of video record the method for carrying out video and getting ready and searching, the method can improve the speed according to getting Information locating video data ready.
The invention provides a kind of video record equipment, this video record equipment can improve the speed according to getting Information locating video data ready.
Carry out the method that video is got ready and searched in video record, in advance memory disc be divided into video storage district, I frame information memory block and get information storage area ready; The method comprises:
Receiving video data, from the I frame data of video data extraction time point, determine the offset address of I frame data in video storage district, the I frame information of each I frame data is stored into I frame information memory block, described I frame information comprises time point and offset address; Video data is stored into video storage district;
Receiving package gets information ready containing what get content and dotting time ready, is stored into and gets information storage area ready;
Reception information reading command, reads from I frame information memory block and shows each I frame information, reads from getting information storage area ready and shows the information of getting ready;
Receiving package is containing the look-up command of specifying dotting time, described appointment dotting time is chosen from getting ready information of display, by specifying dotting time to obtain corresponding offset address from the I frame information of display, reading corresponding video data by offset address from video storage district, playing.
A kind of video record equipment, this video record equipment comprises memory disc processing unit, video data processing element, gets information process unit, Information reading unit ready and get positioning unit ready;
Described memory disc processing unit, is divided into video storage district, I frame information memory block and gets information storage area ready by memory disc;
Described video data processing element, receiving video data, from the I frame data of video data extraction time point, determine the offset address of I frame data in video storage district, the I frame information of each I frame data is stored into I frame information memory block, and described I frame information comprises time point and offset address; Video data is stored into video storage district;
Describedly get information process unit ready, receiving package gets information ready containing what get content and dotting time ready, is stored into and gets information storage area ready;
Described Information reading unit, receives information reading command, reads and show each I frame information, read from getting information storage area ready and show the information of getting ready from I frame information memory block;
Describedly get positioning unit ready, receiving package is containing the look-up command of specifying dotting time, described appointment dotting time is chosen from getting ready information of display, from the I frame information of display, corresponding offset address is obtained by specifying dotting time, read corresponding video data by offset address from video storage district, play.
As can be seen from such scheme, in the present invention, in advance memory disc be divided into video storage district, I frame information memory block and get information storage area ready; From the I frame data of video data extraction time point, determine the offset address of I frame data in video storage district, the I frame information of each I frame data is stored into I frame information memory block, described I frame information comprises time point and offset address; And information of getting ready is stored into and gets information storage area ready; Then, receive information reading command, read from I frame information memory block and show each I frame information, read from getting information storage area ready and show the information of getting ready; When carrying out video retrieval, by specifying dotting time to obtain corresponding offset address from the I frame information of display, reading corresponding video data by offset address from video storage district, playing.The present invention will get information ready and video data is all stored on memory disc, and the I frame information comprising time point and offset address is stored into I frame information memory block, will get information ready associate with I frame information by time point; When video data is searched, just can find corresponding offset address by dotting time in I frame information, then just can read corresponding video data by offset address from video storage district, play; Like this, without the need to carrying out time match by dotting time one by one to the I frame data in video data, improve seek rate.Further, just get information ready and video data is all stored on memory disc, getting information ready without the need to obtaining from server, further increasing seek rate.
Accompanying drawing explanation
Fig. 1 carries out the method indicative flowchart that video gets ready and search in video record of the present invention;
Fig. 2 carries out the method flow diagram example that video gets ready in video record of the present invention;
Fig. 3 is the method flow diagram example carrying out query video in video record of the present invention;
Fig. 4 is the structural representation of video record equipment of the present invention.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly understand, below in conjunction with embodiment and accompanying drawing, the present invention is described in more detail.
The present invention will get information ready and video data is all stored on memory disc, and the I frame information comprising time point and offset address is stored into I frame information memory block, will get information ready associate with I frame information by time point; Then, just corresponding offset address can be gone out by dotting time fast finding, with playing video data from this offset address, thus, improve the locating speed of video data.
See Fig. 1, for carrying out the method indicative flowchart that video is got ready and searched in video record of the present invention, memory disc is divided into video storage district, I frame information memory block and gets information storage area ready by the method in advance; In existing scheme, memory disc is only for stored video data, and memory disc divides by the present invention, with stored video data, I frame information respectively with get information ready.
The flow process of Fig. 1 comprises the following steps:
Step 101, receiving video data, from the I frame data of video data extraction time point, determine the offset address of I frame data in video storage district, the I frame information of each I frame data is stored into I frame information memory block, and described I frame information comprises time point and offset address; Video data is stored into video storage district.
Web camera carries out data acquisition, coding to video monitoring scene, and the video data after coding is sent to video record equipment.Video data after coding comprises multiple I frame data, and I frame data comprise time point; Video data will be stored in video storage district, determine the offset address of I frame data in video storage district in video data, using the time point of I frame data and offset address as I frame information, be stored into I frame information memory block.
Be that straight record CD is described with memory disc, adopt and directly record CD, all data being stored into straight record CD, all without third party's transfer, directly write CD by CD writer; Correspondingly, described in this step, the I frame information of each I frame data is stored into I frame information memory block and specifically comprises: laser head is switched to I frame information memory block, the I frame information of each I frame data is stored into I frame information memory block; Described in this step, video data is stored into video storage district specifically to comprise: laser head is switched to video storage district, video data is stored into video storage district.
Step 102, receiving package gets information ready containing what get content and dotting time ready, is stored into and gets information storage area ready.
If memory disc is for directly to record CD, this step specifically comprises: receiving package gets information ready containing what get content and dotting time ready, and switched to by laser head and get information storage area ready, information of getting ready is stored into gets information storage area ready.
After starting straight record CD, can close as required: receive and close video recording instruction, stop, to straight record CD write data, closing and directly recording CD.
Step 101 and step 102 can unorderedly perform.
Step 103, receives information reading command, reads and show each I frame information, read from getting information storage area ready and show the information of getting ready from I frame information memory block.
The each I frame information of described display can adopt the mode of I frame information table to show, and described I frame information table comprises the corresponding relation between time point and offset address; Described display is got the mode that information can adopt display to get information table ready ready and is shown, described in get information table ready and comprise the corresponding relation got ready between content and dotting time.
Step 104, receiving package is containing the look-up command of specifying dotting time, and described appointment dotting time is chosen from getting ready information of display, obtains corresponding offset address by specifying dotting time from the I frame information of display, read corresponding video data by offset address from video storage district, play.
I frame information table can being adopted to show with the mode getting information table ready if information is got in each I frame information of described display and display ready, specifically comprising by specifying dotting time to obtain corresponding offset address from the I frame information of display described in this step: inquire from I frame information table and the offset address of specifying dotting time corresponding.
Further, receiving package described in this step, containing after the look-up command of specifying dotting time, can also comprise: by specifying dotting time corresponding to get content ready from getting ready information table to inquire, what display inquired gets content ready.Specific address, gets that content is stackable to be presented on the video pictures of broadcasting ready.
The present invention can be applicable to various video monitoring scene, concrete as hearing scene, interrogator's meeting and examined certain information by interrogator in Interrogation Procedure, as crime time, crime place, and to the key point that whole using case trial electric plays an important role in commit a crime course; Interrogator can carry out record to this part information, and namely the content of record gets content ready, also can record hearing time point at that time, i.e. dotting time simultaneously.If desired carry out review or transfer the files checking to hearing process afterwards, can according to getting information quick position ready to the video scene of inquesting at that time.
Get ready below by the video in Fig. 2,3 pairs of video records of the present invention, video query method is described respectively.See Fig. 2, for carrying out the method flow diagram example that video is got ready in video record of the present invention, it comprises the following steps:
Step 201, initialization directly records CD.
This step specifically comprises and dividing straight record CD, generating video memory block, I frame information memory block and get information storage area ready, then starts and directly records CD.
Step 202, receiving video data, determines whether I frame data, if so, then performs step 203, otherwise performs step 205.
Step 203, from I frame data extraction time point, determine the offset address of I frame data in video storage district, using time point and the offset address I frame information as I frame data.
Step 204, switches to I frame information memory block by laser head, the I frame information of each I frame data is stored into I frame information memory block.
Step 205, switches to video storage district by laser head, video data is stored into video storage district.
Step 206, receiving package gets information ready containing what get content and dotting time ready, and switched to by laser head and get information storage area ready, information of getting ready is stored into gets information storage area ready.
Step 202 and step 206 can unorderedly perform.
Step 207, receives and closes video recording instruction, refuses, to straight record CD write data, to close and directly record CD.
Step 207 may perform by any instant after step 201.
See Fig. 3, for carrying out the method flow diagram example of query video in video record of the present invention, it comprises the following steps:
Step 301, receives information reading command, reads each I frame information from I frame information memory block, and generate I frame information table, described I frame information table comprises the corresponding relation between time point and offset address; Read get information ready from getting information storage area ready, generate and get information table ready, described in get information table ready and comprise the corresponding relation got ready between content and dotting time.
I frame information table is concrete as in the example of table 1, gets the concrete example as shown in Figure 2 of information table ready.
| Get content ready | Dotting time |
| Criminal hands over crime place | T1 |
| Criminal hands over tool used in crime | T2 |
| Criminal hands over criminal motive | T3 |
| Criminal hands over the crime confederate | T4 |
Table 1I frame information table example
| I frame number | I frame time (time point) | Side-play amount (offset address) in CD |
| 1 | Time1 | Offset1 |
| … | … | … |
| N | T1 | Offset |
| N+1 | Time?n | Offset?n |
| … | … | … |
Information table example got ready by table 2
Step 302, receiving package is containing the look-up command of specifying dotting time, and described appointment dotting time is chosen from getting ready information of display, inquires and the offset address of specifying dotting time corresponding from I frame information table.
Step 303, switches to the offset address place inquired by laser head, read corresponding video data, play from video storage district.
Step 304, by specifying dotting time corresponding to get content ready from getting ready information table to inquire, what display inquired gets content ready.
In the present invention, in advance memory disc be divided into video storage district, I frame information memory block and get information storage area ready; From the I frame data of video data extraction time point, determine the offset address of I frame data in video storage district, the I frame information of each I frame data is stored into I frame information memory block, described I frame information comprises time point and offset address; And information of getting ready is stored into and gets information storage area ready; Then, receive information reading command, read from I frame information memory block and show each I frame information, read from getting information storage area ready and show the information of getting ready; When carrying out video retrieval, by specifying dotting time to obtain corresponding offset address from the I frame information of display, reading corresponding video data by offset address from video storage district, playing.The present invention will get information ready and video data is all stored on memory disc, and the I frame information comprising time point and offset address is stored into I frame information memory block, will get information ready associate with I frame information by time point; When video data is searched, just can find corresponding offset address by dotting time in I frame information, then just can read corresponding video data by offset address from video storage district, play; Like this, without the need to by dotting time, one by one time match is carried out to the I frame data in video data, improves seek rate.Further, just get information ready and video data is all stored on memory disc, getting information ready without the need to obtaining from server, further increasing seek rate.
See Fig. 4, be the structural representation of video record equipment of the present invention, this video record equipment comprises memory disc processing unit, video data processing element, gets information process unit, Information reading unit ready and get positioning unit ready;
Described memory disc processing unit, is divided into video storage district, I frame information memory block and gets information storage area ready by memory disc;
Described video data processing element, receiving video data, from the I frame data of video data extraction time point, determine the offset address of I frame data in video storage district, the I frame information of each I frame data is stored into I frame information memory block, and described I frame information comprises time point and offset address; Video data is stored into video storage district;
Describedly get information process unit ready, receiving package gets information ready containing what get content and dotting time ready, is stored into and gets information storage area ready;
Described Information reading unit, receives information reading command, reads and show each I frame information, read from getting information storage area ready and show the information of getting ready from I frame information memory block;
Describedly get positioning unit ready, receiving package is containing the look-up command of specifying dotting time, described appointment dotting time is chosen from getting ready information of display, from the I frame information of display, corresponding offset address is obtained by specifying dotting time, read corresponding video data by offset address from video storage district, play.
Preferably, described memory disc is for directly to record CD, and described video data is to the on-the-spot data of carrying out video acquisition of hearing; Described video data processing element comprises I frame information process subelement and video data process subelement, described in get information process unit ready and comprise and get information processing subelement ready;
Described I frame information process subelement, switches to I frame information memory block, the I frame information of each I frame data is stored into I frame information memory block by laser head;
Described video data process subelement, switches to video storage district, the video data of reception is stored into video storage district by laser head;
Describedly get information processing subelement ready, switched to by laser head and get information storage area ready, information of getting ready is stored into gets information storage area ready.
Preferably, described Information reading unit comprises I frame information and reads subelement and get information reading sub-unit ready, described in get positioning unit ready and comprise address lookup subelement;
Described I frame information reads subelement, reads and show each I frame information from I frame information memory block, display I frame information table, and described I frame information table comprises the corresponding relation between time point and offset address;
Describedly get information reading sub-unit ready, read from getting information storage area ready and show the information of getting ready, information table is got in display ready, described in get information table ready and comprise the corresponding relation got ready between content and dotting time;
Described address lookup subelement, inquires and the offset address of specifying dotting time corresponding from I frame information table.
Preferably, described in get positioning unit ready and also comprise and get content search subelement ready, after receiving package is containing the look-up command of specifying dotting time, by specifying dotting time corresponding to get content ready from getting ready information table to inquire, what display inquired gets content ready.
Preferably, described memory disc processing unit comprises CD and closes subelement, receives and closes video recording instruction, refuses, to straight record CD write data, to close and directly record CD.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within the scope of protection of the invention.
Claims (10)
1. carry out the method that video is got ready and searched in video record, it is characterized in that, in advance memory disc be divided into video storage district, I frame information memory block and get information storage area ready; The method comprises:
Receiving video data, from the I frame data of video data extraction time point, determine the offset address of I frame data in video storage district, the I frame information of each I frame data is stored into I frame information memory block, described I frame information comprises time point and offset address; Video data is stored into video storage district;
Receiving package gets information ready containing what get content and dotting time ready, is stored into and gets information storage area ready;
Reception information reading command, reads from I frame information memory block and shows each I frame information, reads from getting information storage area ready and shows the information of getting ready;
Receiving package is containing the look-up command of specifying dotting time, described appointment dotting time is chosen from getting ready information of display, by specifying dotting time to obtain corresponding offset address from the I frame information of display, reading corresponding video data by offset address from video storage district, playing.
2. the method for claim 1, is characterized in that, described memory disc is for directly to record CD;
The described I frame information by each I frame data is stored into I frame information memory block and comprises: laser head is switched to I frame information memory block, the I frame information of each I frame data is stored into I frame information memory block;
The described video storage district that is stored into by video data comprises: laser head is switched to video storage district, video data is stored into video storage district;
Described receiving package gets information ready containing what get content and dotting time ready, be stored into and get information storage area ready and comprise: receiving package gets information ready containing what get content and dotting time ready, switched to by laser head and get information storage area ready, information of getting ready is stored into gets information storage area ready.
3. method as claimed in claim 1 or 2, it is characterized in that, each I frame information of described display comprises: display I frame information table, and described I frame information table comprises the corresponding relation between time point and offset address; Described display is got information ready and is comprised: information table is got in display ready, described in get information table ready and comprise the corresponding relation got ready between content and dotting time;
The described offset address by specifying dotting time to obtain correspondence from the I frame information of display comprises: inquire from I frame information table and the offset address of specifying dotting time corresponding.
4. method as claimed in claim 3, is characterized in that, described receiving package is containing after the look-up command of specifying dotting time, and the method also comprises: by specifying dotting time corresponding to get content ready from getting ready information table to inquire, what display inquired gets content ready.
5. method as claimed in claim 2, is characterized in that, described in be stored into and get information storage area ready after, the method also comprises:
Receive and close video recording instruction, stop, to straight record CD write data, closing and directly recording CD.
6. a video record equipment, is characterized in that, this video record equipment comprises memory disc processing unit, video data processing element, gets information process unit, Information reading unit ready and get positioning unit ready;
Described memory disc processing unit, is divided into video storage district, I frame information memory block and gets information storage area ready by memory disc;
Described video data processing element, receiving video data, from the I frame data of video data extraction time point, determine the offset address of I frame data in video storage district, the I frame information of each I frame data is stored into I frame information memory block, and described I frame information comprises time point and offset address; Video data is stored into video storage district;
Describedly get information process unit ready, receiving package gets information ready containing what get content and dotting time ready, is stored into and gets information storage area ready;
Described Information reading unit, receives information reading command, reads and show each I frame information, read from getting information storage area ready and show the information of getting ready from I frame information memory block;
Describedly get positioning unit ready, receiving package is containing the look-up command of specifying dotting time, described appointment dotting time is chosen from getting ready information of display, from the I frame information of display, corresponding offset address is obtained by specifying dotting time, read corresponding video data by offset address from video storage district, play.
7. video record equipment as claimed in claim 6, it is characterized in that, described memory disc is for directly to record CD, and described video data processing element comprises I frame information process subelement and video data process subelement, described in get information process unit ready and comprise and get information processing subelement ready;
Described I frame information process subelement, switches to I frame information memory block, the I frame information of each I frame data is stored into I frame information memory block by laser head; Described video data process subelement, switches to video storage district, the video data of reception is stored into video storage district by laser head;
Describedly get information processing subelement ready, switched to by laser head and get information storage area ready, information of getting ready is stored into gets information storage area ready.
8. video record equipment as claimed in claims 6 or 7, is characterized in that, described Information reading unit comprises I frame information and reads subelement and get information reading sub-unit ready, described in get positioning unit ready and comprise address lookup subelement;
Described I frame information reads subelement, reads and show each I frame information from I frame information memory block, display I frame information table, and described I frame information table comprises the corresponding relation between time point and offset address;
Describedly get information reading sub-unit ready, read from getting information storage area ready and show the information of getting ready, information table is got in display ready, described in get information table ready and comprise the corresponding relation got ready between content and dotting time;
Described address lookup subelement, inquires and the offset address of specifying dotting time corresponding from I frame information table.
9. video record equipment as claimed in claim 8, it is characterized in that, described positioning unit of getting ready also comprises and gets content search subelement ready, after containing the look-up command of specifying dotting time in receiving package, by specifying dotting time corresponding to get content ready from getting ready information table to inquire, what display inquired gets content ready.
10. video record equipment as claimed in claim 7, is characterized in that, described memory disc processing unit comprises CD and closes subelement, receives and closes video recording instruction, refuses, to straight record CD write data, to close and directly record CD.
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| CN201310226411.8A CN104240741B (en) | 2013-06-07 | 2013-06-07 | Method and video record equipment that video is got ready and searched are carried out in video record |
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| CN201310226411.8A CN104240741B (en) | 2013-06-07 | 2013-06-07 | Method and video record equipment that video is got ready and searched are carried out in video record |
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| CN104766618A (en) * | 2015-04-22 | 2015-07-08 | 北京锤子数码科技有限公司 | Multi-media file recording method and system and multi-media file playing method and system |
| CN104766618B (en) * | 2015-04-22 | 2018-01-23 | 北京锤子数码科技有限公司 | Multimedia document recording method and system, method for broadcasting multimedia file and system |
| CN104980808A (en) * | 2015-07-06 | 2015-10-14 | 无锡天脉聚源传媒科技有限公司 | Method and device for accurately dotting video resources |
| CN104994435A (en) * | 2015-07-06 | 2015-10-21 | 无锡天脉聚源传媒科技有限公司 | Method and device for accurately dotting video resources |
| CN106409031A (en) * | 2015-08-03 | 2017-02-15 | 北京鸿合智能系统股份有限公司 | Recorded broadcast student terminal recording problem method and apparatus thereof |
| CN110278398A (en) * | 2018-03-16 | 2019-09-24 | 杭州海康威视数字技术股份有限公司 | Date storage method, video clip searching method, device and electronic equipment |
| CN110278398B (en) * | 2018-03-16 | 2022-01-21 | 杭州海康威视数字技术股份有限公司 | Data storage method, video clip searching method, device and electronic equipment |
| CN108831510A (en) * | 2018-06-29 | 2018-11-16 | Oppo（重庆）智能科技有限公司 | Method, apparatus, terminal and the storage medium that audio-video document is got ready |
| CN108831510B (en) * | 2018-06-29 | 2020-08-04 | Oppo（重庆）智能科技有限公司 | Method, device, terminal and storage medium for dotting audio and video files |
| WO2020108248A1 (en) * | 2018-11-28 | 2020-06-04 | 华为技术有限公司 | Video playback method and apparatus |
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