CN102945679A - Video data processing method and video data read-write equipment - Google Patents
Video data processing method and video data read-write equipment Download PDFInfo
- Publication number
- CN102945679A CN102945679A CN2012103752082A CN201210375208A CN102945679A CN 102945679 A CN102945679 A CN 102945679A CN 2012103752082 A CN2012103752082 A CN 2012103752082A CN 201210375208 A CN201210375208 A CN 201210375208A CN 102945679 A CN102945679 A CN 102945679A
- Authority
- CN
- China
- Prior art keywords
- video data
- frame
- read
- initial
- time
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Television Signal Processing For Recording (AREA)
Abstract
The embodiment of the invention provides a video data processing method and video data read-write equipment. The video data processing method comprises the following steps: receiving a data read request message, wherein the data read request message comprises initial time of video data to be read; according to the initial time, determining position information of an initial I frame of the video data to be read in a video data storage region; and according to the position information, reading the video data to be read from the video data storage region. According to the embodiment of the invention, by receiving the data read request message comprising the initial time of the video data to be read, the accurate position information of the initial I frame corresponding to the video data to be read in the video data storage region is rapidly determined and the video data to be read is read from the video data storage region according to the position information so as to improve the extraction speed and the working efficiency of the video data.
Description
Technical field
The embodiment of the invention relates to video technique, relates in particular to a kind of video data handling procedure and video data read-write equipment.
Background technology
Along with field of video applications is more and more wider, the video data volume is also increasing thereupon, and how the user can navigate to required video data fast in the video data of magnanimity, become problem demanding prompt solution.
In the prior art, video data can be divided into a plurality of video files usually to be preserved, and has preserved the video data of a period of time in this video data in each video file, and this video file can comprise zero-time and the concluding time of this section video data.When the video data read-write equipment need to read a certain section video data, it need to be located first the required video data that reads and be arranged in which video file, if the zero-time of the required video data that reads just in time is the zero-time of this video file, then the video data read-write equipment can be from the reference position reading video data of this video file, if the zero-time of the required video data that reads is in the zero-time of this video file with between the concluding time, then the video data read-write equipment also needs further to search the reference position of the required video data that reads in this video file.
Therefore, when the number of video file was more, prior art need to be searched the reference position of the required video data that reads in numerous video files, and consuming time longer, operating efficiency is lower.
Summary of the invention
The embodiment of the invention provides a kind of video data handling procedure and video data read-write equipment, has solved prior art because video file when more, the video data length consuming time of searching required reading matter, inefficient problem.
First aspect of the present invention provides a kind of video data handling procedure, comprising:
Receive data read requests message comprises the zero-time of video data to be read in the described data read request message;
According to described zero-time, determine the positional information of initial I frame in the Video Data Storage zone of described video data to be read;
According to described positional information, from described Video Data Storage zone, read described video data to be read.
Further, above-mentioned video data handling procedure, wherein described according to described zero-time, determine to comprise the positional information of initial I frame in the Video Data Storage zone of described video data to be read:
According to described zero-time, determine the memory location of location expression information in key frame index zone of described initial I frame;
Read the location expression information of the described initial I frame of storing on the described memory location;
According to described location expression information, determine the positional information of described initial I frame in the Video Data Storage zone.
Another aspect of the embodiment of the invention provides a kind of video data read-write equipment, comprising:
Receiver module is used for receive data read requests message, comprises the zero-time of video data to be read in the described data read request message;
Determination module is used for according to described zero-time, determines the positional information of initial I frame in the Video Data Storage zone of described video data to be read;
Read module is used for according to described positional information, reads described video data to be read from described Video Data Storage zone.
Further, above-mentioned video data read-write equipment, wherein, described determination module can comprise:
The first determining unit is used for according to described zero-time, determines the memory location of location expression information in key frame index zone of described initial I frame;
Reading unit is for the location expression information that reads the described initial I frame of storing on the described memory location;
The second determining unit is used for according to described location expression information, determines the positional information of described initial I frame in the Video Data Storage zone.
The video data handling procedure that the embodiment of the invention provides and video data read-write equipment, the data read request message that comprises video data zero-time to be read by reception, determine corresponding initial I frame, and the positional information in the corresponding Video Data Storage zone that comprises by this I frame reads corresponding video data, thereby improved extraction rate and the work efficiency of video data.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do one to the accompanying drawing of required use in embodiment or the description of the Prior Art and introduce simply, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the process flow diagram of video data handling procedure embodiment one of the present invention;
Fig. 2 is the process flow diagram of video data handling procedure embodiment two of the present invention;
Fig. 3 is the structural representation of video data read-write equipment embodiment one of the present invention;
Fig. 4 is the structural representation of video data read-write equipment embodiment two of the present invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Fig. 1 is the process flow diagram of video data handling procedure embodiment one of the present invention, and as shown in Figure 1, the method for present embodiment can comprise:
S100, receive data read requests message.
Concrete, comprise the zero-time of video data to be read in the above-mentioned data read request message.For example, when the user need to retrieve and check one section video data from a certain moment, in fact just be equivalent to user's foundation and sent above-mentioned data read request message for present embodiment, and comprise the zero-time of this section video data of user's needs in this message.
S102 according to zero-time, determines the positional information of initial I frame in the Video Data Storage zone of video data to be read.
Concrete, the coded image of video data is comprised of two field picture one by one, and frame itself can be divided into: I frame, P frame and B frame.Wherein, P frame and B frame all need to carry out corresponding decode operation based on the I frame, can't independently extract and use, so nonsensical for the embodiment of the invention.The I frame then can independently carry out decode operation, so the embodiment of the invention based on the independence of I frame, has adopted the I frame to determine the positional information of video data to be read in the Video Data Storage zone.
In the prior art, method for the video data processing, because being divided into a plurality of video files, preserves video data, preserved the video data of a period of time in this video data in each video file, when needs read one when looking closely audio data, need to search first and determine to comprise one section video data file of zero-time, further search the memory location of the accurately zero-time that in this video file the user is needed again, and the video data that begins from zero-time that will find again offers the user and checks.For example, for prior art, when the user wishes to see the one section video data that begins from 11:20, so at first need the video data that comprises this time point of 11:20 is searched, if the zero-time of the required video data that reads is in the zero-time of this video file with between the concluding time, such as having found video data file A, this video data file A is to be that 10:00 is to one section video data of 12:00 the time, the time point that has comprised user's needs, search video data file A this moment again, further in this section video data, determine the position of the 11:20 that the user is required, and offer the user and check.But along with the video data file number is on the increase, the video data processing procedure efficient of prior art obviously descends, and is unfavorable for that the user finds the video data of required start time point quickly and accurately.And used the I frame in the embodiment of the invention as the bridge between the positional information of user's search operation and Video Data Storage information area, make information searching that the user directly comprises by the I frame in search procedure to the accurate location information of the video data that begins from required zero-time, check thereby directly the video data of this start time point is read and offer the user, very effectively improved the efficient that video data is processed.
S104 according to positional information, reads video data to be read from the Video Data Storage zone.
In the present embodiment, the data read request message that comprises video data zero-time to be read by reception, determine with the positional information of initial I frame in the Video Data Storage zone corresponding to reading video data, and from the Video Data Storage zone, read video data to be read according to this positional information, thereby extraction rate and the work efficiency of video data have been improved.
Fig. 2 is the process flow diagram of video data handling procedure embodiment two of the present invention, and as shown in Figure 2, the method for present embodiment can comprise:
S200, receive data read requests message.
Concrete, comprise the zero-time of video data to be read in the above-mentioned data read request message.
S202 according to zero-time, determines the memory location of location expression information in key frame index zone of initial I frame.
Need to prove, key frame index zone is a pre-assigned storage space independently, I frame unification in a period of time is stored in this key frame index zone, and the space size in this key frame index zone is determined by length, the I frame density of unit interval and the shared space size of each I frame information of time period, for example, if it is one 1 day (24 hours) that a key frame index zone needs the time quantum of reservation, have at most 1 I key frame 1 second, then need to reserve 24*3600=86400 I frame information space; Have at most 2 key frames 1 second, then need to reserve 24*3600*2=172800 key frame information space.
And m divides s second when zero-time is h, according to zero-time, determines the memory location of location expression information in key frame index zone of initial I frame, comprising:
Adopt following formula, determine the memory location:
（h×3600+m×60+s）×L；
Wherein, L is the space size of the location expression information of each I frame of storage in the key frame index zone.
Because the space size in key frame index zone need to be determined by the length of time period, namely, the hard disk sector of storage I frame is the whole I frame position descriptors that comprise in a period of time, and the zero-time I frame that the I frame of the initial time that stores in this hard disk sector and user need to retrieve has a deviation post, if need to read the I frame rope location expression information that some day, m divided s time point second during h, m divides the s time of second in the time of only need to be from the key frame index zone reference position time migration h of this day, can navigate to the I frame of the zero-time of appointment.For example, when required zero-time is 8:15, when L was 1bit, the memory location of the location expression information of I frame in same day key frame index zone was exactly the side-play amount of the initial time in this zero-time 8:15 and the same day key frame index zone, and namely (8 * 3600+15 * 60+0) * 1bit.
S204 reads the location expression information of the initial I frame of storing on the memory location.
Found the I frame of required zero-time in key frame index zone after, concrete, the location expression information of I frame comprises: the identification information of the hard disk sector of this initial I frame storage, this initial I frame are at the relative position of the previous I frame of the deviation post of storage hard disk sector, I frame and the relative position of a rear I frame.Because the location expression information of I frame comprises the relative position of previous I frame of I frame and the relative position of a rear I frame, when the user checks video data, can carry out corresponding F.F. and fast reverse operation according to the relative position of previous I frame and the relative position of a rear I frame like this.
For the location expression information that reads the initial I frame of storing on the memory location, concrete, read the identification information of hard disk sector at initial I frame place and the deviation post on hard disk sector.
According to location expression information, determine the positional information of initial I frame in the Video Data Storage zone, comprising:
According to the identification information of hard disk sector, determine the hard disk sector at initial I frame place.
Concrete, because the Video Data Storage zone is generally divided into a plurality of sectors, so the identification information of this hard disk sector can be determined the sector at the video data place of the actual correspondence of initial I frame.
Can locate accurately the hard disk sector of initial I frame storage by the identification information of this hard disk sector.
According to deviation post, determine the deviation post of initial I frame on hard disk sector.
Concrete, the deviation post of video data on the sector that initial I frame is corresponding, be actually relevant at key frame index zone deviation post with initial I frame, side-play amount by initial I frame, just can obtain accurately the side-play amount of corresponding video data zero-time on the sector of this video data of storage, thereby determine the accurate location information of this video data zero-time.
S206 according to location expression information, determines the positional information of initial I frame in the Video Data Storage zone.
Like this, location expression information by initial I frame, obtain storing the sector of required video data, and then obtained the deviation post of this video data zero-time in the sector, thus the positional information of initial I frame in the Video Data Storage zone of definite video data to be read.
S208 according to positional information, reads video data to be read from the Video Data Storage zone.
Need to prove, before above-mentioned receive data read requests, in the Video Data Storage zone, store video data to be read, and the location expression information of initial I frame is stored on the memory location corresponding with zero-time in the key frame index zone.
Present embodiment at first passes through in advance storage video data to be read in the Video Data Storage zone, and the location expression information of initial I frame is stored on the memory location corresponding with zero-time in the key frame index zone.The data read request message that comprises again video data zero-time to be read by reception, and according to this video data zero-time to be read, determine the memory location of location expression information in key frame index zone of initial I frame, and then determine the positional information of initial I frame in the Video Data Storage zone of video data to be read according to the location expression information that this memory location obtains initial I frame, and then according to this positional information, from the Video Data Storage zone, read video data to be read.Realized the quick and precisely search of user to video data file.Processing speed and the work efficiency of video data have been improved.
Fig. 3 is the structural representation of video data read-write equipment embodiment one of the present invention, and as shown in Figure 3, the equipment of present embodiment comprises: receiver module 30, determination module 32, read module 34.
Read module 34 is used for according to positional information, reads video data to be read from the Video Data Storage zone.
The device of present embodiment can be for the technical scheme of carrying out embodiment of the method shown in Figure 1, and its realization principle and technique effect are similar, repeat no more herein.
Fig. 4 is the structural representation of video data read-write equipment embodiment two of the present invention, as shown in Figure 4, the device of present embodiment is on the basis of apparatus structure shown in Figure 3, and further, determination module 32 can also comprise: the first determining unit 320, reading unit 322, the second determining unit 324.For the said equipment, can also comprise: writing module 36.
With reference to Fig. 4 as can be known, receive the data read request message of the zero-time that comprises video data to be read by receiver module 30, and this data read request message is sent to the first determining unit 320.
This first determining unit 320 is used for according to zero-time, determines the memory location of location expression information in key frame index zone of initial I frame.The first determining unit 320 has adopted following formula when determining the memory location:
(h * 3600+m * 60+s) * L, wherein, L is the space size of the location expression information of each I frame of storage in the key frame index zone.
This reading unit 322 is used for reading the location expression information of the initial I frame of storing on the memory location.Concrete, reading unit 322 reads the identification information of hard disk sector at initial I frame place and the deviation post on hard disk sector.
This second determining unit 324 is used for according to location expression information, determines the positional information of initial I frame in the Video Data Storage zone.Concrete, the second determining unit 324 is determined the hard disk sector at initial I frame place for the identification information according to hard disk sector, according to deviation post, determines the deviation post of initial I frame on hard disk sector.The second determining unit 324 sends to read module 34 with the positional information that obtains.
Read module 34 reads video data to be read according to this positional information from the Video Data Storage zone, offer the user and check.
And, the determination module that provides for present embodiment, preferred, also comprise the relative position of previous I frame of initial I frame and the relative position of a rear I frame in the location expression information.So that the user carries out the fast forwarding and fast rewinding operation when checking video data.
This writing module 36 is used at Video Data Storage zone storage video data to be read, and the location expression information of initial I frame is stored on the memory location corresponding with zero-time in the key frame index zone.
The device of present embodiment can be for the technical scheme of carrying out embodiment of the method shown in Figure 2, and its realization principle and technique effect are similar, repeat no more herein.
One of ordinary skill in the art will appreciate that: all or part of step that realizes above-mentioned each embodiment of the method can be finished by the relevant hardware of programmed instruction.Aforesaid program can be stored in the computer read/write memory medium.This program is carried out the step that comprises above-mentioned each embodiment of the method when carrying out; And aforesaid storage medium comprises: the various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
It should be noted that at last: above each embodiment is not intended to limit only in order to technical scheme of the present invention to be described; Although with reference to aforementioned each embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps some or all of technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of various embodiments of the present invention technical scheme.
Claims (12)
1. a video data handling procedure is characterized in that, comprising:
Receive data read requests message comprises the zero-time of video data to be read in the described data read request message;
According to described zero-time, determine the positional information of initial I frame in the Video Data Storage zone of described video data to be read;
According to described positional information, from described Video Data Storage zone, read described video data to be read.
2. method according to claim 1 is characterized in that, and is described according to described zero-time, determines the positional information of initial I frame in the Video Data Storage zone of described video data to be read, comprising:
According to described zero-time, determine the memory location of location expression information in key frame index zone of described initial I frame;
Read the location expression information of the described initial I frame of storing on the described memory location;
According to described location expression information, determine the positional information of described initial I frame in the Video Data Storage zone.
3. method according to claim 2 is characterized in that, m divided s second when described zero-time was h, and is described according to described zero-time, determines the memory location of location expression information in key frame index zone of described initial I frame, comprising:
Adopt following formula, determine described memory location:
（h×3600+m×60+s）×L；
Wherein, L is the space size of the location expression information of each I frame of storage in the described key frame index zone.
4. method according to claim 2 is characterized in that, the described location expression information that reads the described initial I frame of storing on the described memory location comprises:
Read identification information and the deviation post on described hard disk sector of the hard disk sector at described initial I frame place;
Described according to described location expression information, determine the positional information of described initial I frame in the Video Data Storage zone, comprising:
According to the identification information of described hard disk sector, determine the hard disk sector at described initial I frame place;
According to described deviation post, determine the deviation post of described initial I frame on described hard disk sector.
5. method according to claim 2 is characterized in that, also comprises the relative position of previous I frame of described initial I frame and the relative position of a rear I frame in the described location expression information.
6. each described method is characterized in that according to claim 2 ~ 5, before the described receive data read requests message, also comprises:
In described Video Data Storage zone, store described video data to be read, and the location expression information of described initial I frame is stored on the memory location corresponding with described zero-time in the key frame index zone.
7. a video data read-write equipment is characterized in that, comprising:
Receiver module is used for receive data read requests message, comprises the zero-time of video data to be read in the described data read request message;
Determination module is used for according to described zero-time, determines the positional information of initial I frame in the Video Data Storage zone of described video data to be read;
Read module is used for according to described positional information, reads described video data to be read from described Video Data Storage zone.
8. equipment according to claim 7 is characterized in that, described determination module comprises:
The first determining unit is used for according to described zero-time, determines the memory location of location expression information in key frame index zone of described initial I frame;
Reading unit is for the location expression information that reads the described initial I frame of storing on the described memory location;
The second determining unit is used for according to described location expression information, determines the positional information of described initial I frame in the Video Data Storage zone.
9. equipment according to claim 8 is characterized in that, m divided s second when described zero-time was h, and described the first determining unit specifically is used for:
Adopt following formula, determine described memory location:
（h×3600+m×60+s）×L；
Wherein, L is the space size of the location expression information of each I frame of storage in the described key frame index zone.
10. equipment according to claim 8 is characterized in that, described reading unit specifically is used for:
Read identification information and the deviation post on described hard disk sector of the hard disk sector at described initial I frame place;
Described the second determining unit, concrete for the identification information according to described hard disk sector, determine the hard disk sector at described initial I frame place, according to described deviation post, determine the deviation post of described initial I frame on described hard disk sector.
11. equipment according to claim 8 is characterized in that, also comprises the relative position of previous I frame of described initial I frame and the relative position of a rear I frame in the described location expression information.
12. each described equipment is characterized in that according to claim 8 ~ 11, also comprises:
Writing module is used at the described video data to be read of described Video Data Storage zone storage, and the location expression information of described initial I frame is stored on the memory location corresponding with described zero-time in the key frame index zone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103752082A CN102945679A (en) | 2012-09-29 | 2012-09-29 | Video data processing method and video data read-write equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103752082A CN102945679A (en) | 2012-09-29 | 2012-09-29 | Video data processing method and video data read-write equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102945679A true CN102945679A (en) | 2013-02-27 |
Family
ID=47728616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103752082A Pending CN102945679A (en) | 2012-09-29 | 2012-09-29 | Video data processing method and video data read-write equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102945679A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105302856A (en) * | 2015-09-18 | 2016-02-03 | 四川效率源信息安全技术股份有限公司 | Method for quickly extracting monitoring video data |
| CN105338297A (en) * | 2014-08-11 | 2016-02-17 | 杭州海康威视系统技术有限公司 | Video data storage and playback system, device and method |
| CN107295402A (en) * | 2017-08-11 | 2017-10-24 | 成都品果科技有限公司 | Video encoding/decoding method and device |
| CN109508408A (en) * | 2018-10-25 | 2019-03-22 | 北京陌上花科技有限公司 | A kind of video retrieval method and computer readable storage medium based on frame density |
| CN109597566A (en) * | 2017-09-30 | 2019-04-09 | 杭州海康威视系统技术有限公司 | A kind of reading data, storage method and device |
| CN110099238A (en) * | 2019-05-31 | 2019-08-06 | 杭州涂鸦信息技术有限公司 | A kind of packaging method of video requency frame data, intelligent terminal and storage device |
| CN110213642A (en) * | 2019-05-23 | 2019-09-06 | 腾讯音乐娱乐科技（深圳）有限公司 | Breakpoint playback method, device, storage medium and the electronic equipment of video |
| CN117093541A (en) * | 2023-08-18 | 2023-11-21 | 北京天华星航科技有限公司 | Data extraction and archiving system for remote sensing data |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1561111A (en) * | 2004-02-26 | 2005-01-05 | 晶晨半导体(上海)有限公司 | Method for quckly indexing plaing information in digital video compression code stream |
| CN1873820A (en) * | 2006-05-18 | 2006-12-06 | 北京中星微电子有限公司 | Method for processing video file, method for indexing video, and video indexing unit |
| CN101420577A (en) * | 2008-11-07 | 2009-04-29 | 武汉烽火网络有限责任公司 | Storage method for multimedia data and method for accurately positioning playback position |
| CN101442647A (en) * | 2008-12-30 | 2009-05-27 | 北京中星微电子有限公司 | Control method for video playback and localization of video monitoring system and storage server thereof |
-
2012
- 2012-09-29 CN CN2012103752082A patent/CN102945679A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1561111A (en) * | 2004-02-26 | 2005-01-05 | 晶晨半导体(上海)有限公司 | Method for quckly indexing plaing information in digital video compression code stream |
| CN1873820A (en) * | 2006-05-18 | 2006-12-06 | 北京中星微电子有限公司 | Method for processing video file, method for indexing video, and video indexing unit |
| CN101420577A (en) * | 2008-11-07 | 2009-04-29 | 武汉烽火网络有限责任公司 | Storage method for multimedia data and method for accurately positioning playback position |
| CN101442647A (en) * | 2008-12-30 | 2009-05-27 | 北京中星微电子有限公司 | Control method for video playback and localization of video monitoring system and storage server thereof |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105338297A (en) * | 2014-08-11 | 2016-02-17 | 杭州海康威视系统技术有限公司 | Video data storage and playback system, device and method |
| CN105338297B (en) * | 2014-08-11 | 2019-03-12 | 杭州海康威视系统技术有限公司 | A kind of storage of video data and playback system, device and method |
| CN105302856A (en) * | 2015-09-18 | 2016-02-03 | 四川效率源信息安全技术股份有限公司 | Method for quickly extracting monitoring video data |
| CN105302856B (en) * | 2015-09-18 | 2019-06-18 | 四川效率源信息安全技术股份有限公司 | The method of rapidly extracting monitor video data |
| CN107295402A (en) * | 2017-08-11 | 2017-10-24 | 成都品果科技有限公司 | Video encoding/decoding method and device |
| CN109597566A (en) * | 2017-09-30 | 2019-04-09 | 杭州海康威视系统技术有限公司 | A kind of reading data, storage method and device |
| CN109597566B (en) * | 2017-09-30 | 2022-03-04 | 杭州海康威视系统技术有限公司 | Data reading and storing method and device |
| CN109508408A (en) * | 2018-10-25 | 2019-03-22 | 北京陌上花科技有限公司 | A kind of video retrieval method and computer readable storage medium based on frame density |
| CN110213642A (en) * | 2019-05-23 | 2019-09-06 | 腾讯音乐娱乐科技（深圳）有限公司 | Breakpoint playback method, device, storage medium and the electronic equipment of video |
| CN110099238A (en) * | 2019-05-31 | 2019-08-06 | 杭州涂鸦信息技术有限公司 | A kind of packaging method of video requency frame data, intelligent terminal and storage device |
| CN117093541A (en) * | 2023-08-18 | 2023-11-21 | 北京天华星航科技有限公司 | Data extraction and archiving system for remote sensing data |
| CN117093541B (en) * | 2023-08-18 | 2024-02-23 | 北京天华星航科技有限公司 | Data extraction and archiving system for remote sensing data |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102945679A (en) | Video data processing method and video data read-write equipment | |
| CN106874348B (en) | File storage and index method and device and file reading method | |
| CN101872639B (en) | Method and device for storing and retrieving image data on digital hard disk video recorder | |
| CN107168651B (en) | Small file aggregation storage processing method | |
| CN102147711A (en) | Storage method and device based on data content identification | |
| CN103399823A (en) | Method, equipment and system for storing service data | |
| CN103955433A (en) | Shingled magnetic recording hard disk, and method and device for writing data in shingled magnetic recording hard disk | |
| CN102308336B (en) | Data recording device, data reading device, tape drive, method of recording data, and method of reading data | |
| CN101963977A (en) | A search method and mobile terminal without urban search | |
| CN102243884B (en) | Method for storing streaming media data and apparatus thereof | |
| US8868429B2 (en) | Method and device for storing audio data | |
| CN107229421B (en) | Method and device for creating video data storage system, method and device for writing file into video data storage system and method and device for reading video data storage system | |
| CN107728948A (en) | A kind of memory performance optimization method and device, computer equipment | |
| KR101472016B1 (en) | Creation method of complex file having image file and additional data inserted in the image file and data record apparatus recording the complex file | |
| CN101540184A (en) | Method and apparatus for reproducing first part of music data having plurality of repeated parts | |
| CN104133640B (en) | From the fast quick-recovery of dormancy | |
| CN102117623B (en) | Method and device for recovering magnetic tape metadata | |
| WO2009110665A1 (en) | Information storage medium for recording data according to journaling file system, and method of and apparatus for writing/recovering data using journaling file system | |
| RU2007112776A (en) | RECORDING MEDIA AND METHOD AND DEVICE FOR PLAYING DATA FROM RECORDING MEDIA | |
| US20040019597A1 (en) | Information processing apparatus, method of controlling information processing apparatus, control program for information processing apparatus and recording medium having control program recorded thereon for information processing apparatus | |
| US20060239656A1 (en) | Recording medium for storing video file and method for editing video file | |
| CN102541957A (en) | Method and device for operating data files on basis of data flow magnetic tapes | |
| CN103092859A (en) | Method and device for acquiring music file information | |
| CN102567209B (en) | Flash memory chip data analyzing method and flash memory chip data analyzing device | |
| CN104618644A (en) | Method and terminal for writing image data into file |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130227 |