CN105430477B - A kind of real-time carving method and device of CD - Google Patents
A kind of real-time carving method and device of CD Download PDFInfo
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- CN105430477B CN105430477B CN201510828398.2A CN201510828398A CN105430477B CN 105430477 B CN105430477 B CN 105430477B CN 201510828398 A CN201510828398 A CN 201510828398A CN 105430477 B CN105430477 B CN 105430477B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
- H04N21/4334—Recording operations
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/0045—Recording
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
- H04N21/4335—Housekeeping operations, e.g. prioritizing content for deletion because of storage space restrictions
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/85—Assembly of content; Generation of multimedia applications
- H04N21/854—Content authoring
- H04N21/8547—Content authoring involving timestamps for synchronizing content
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
- Management Or Editing Of Information On Record Carriers (AREA)
Abstract
The present invention provides the real-time carving method and device of a kind of CD, this method shows that this method includes for making document files be driven with video file bi-directional synchronization：The entry time of start recording document content when court's trial starts；The video data that imprinting generates in real time on CD when court's trial starts, record video data imprinting at the beginning of and the end time；Time started and end time and the mapping relations of document content entry time are recorded in an index；The document files of the index and real-time update is burnt in CD；When CD is replaced, make be at the beginning of current optical disc video data imprinting a upper optical disk video data imprinting end time.The present invention can make the video file on multiple CDs of real-time imprinting realize that bi-directional synchronization driving is shown with document files.
Description
Technical field
The invention belongs to field of data storage, more particularly to one kind makes document files be driven with video file bi-directional synchronization aobvious
The real-time carving method and device of the CD shown.
Background technology
Video, writing record are a newer industries, are usually used in tribunal clerk and record video notes data, public security inspection
Institute's hearing room inquiry record is examined, but can be just on duty since speed recorded person will pass through training for a long time, to personal information, fast record experience
It is required that very high.So the application industry of speed recorded person cannot be equipped in public security organs, procuratorial organs and people's court etc., it is difficult to realize through information equipment typing electricity
Son notes.
Video record is after analog signal conversion, being compressed into digital signal, to pass through Streaming Media by image capture device
The mode of network transmission or hard disk video recorder, by video information recording；Writing record is inputted by user's keyboard, and text is utilized
The approach such as sheet, word or wps editing machines, document files is recorded as by text information.So-called video file and notes file
Bi-directional synchronization drives, and refers to playing this court's trial picture using the player on CD, on a player, drags video pictures
Playing progress rate when, the notes file that is shown on this player can also be updated by synchronously driving, so as to video playing
The time that time records notes with clerk can be synchronous, and scene restores court's trial picture situation at that time and puts down record content
Scene；Conversely, in the notes region of player, the dragging item of dragging notes the inside can also synchronize when update shows notes content
The content of driving video playing is updated accordingly, and both sides' variation keeps synchronizing in time.
Trial video video is not appoint on traditional media such as similar hard disk with the bi-directional drive of notes file
What problem, because on traditional media medium, it can once obtain whole video record files and entire notes text
Part, the corresponding of progress time tag can be synchronized with the video time inside video file by putting down file in this way, once video
Time forms a complete correspondence with notes time tag, then the bi-directional drive of video and notes is easy for solving.
Trial video video file and notes file, when being burnt on CD, as long as ensuring to generate in entire court trial process
All videos file with notes file can be burnt in the same CD, when this CD of player plays,
A synchronization process can be carried out to video and notes file, realize that bi-directional synchronization driving displaying is also to be easy to solve.
When suspect is inquested in some special court case trials and public security at present, all it is required the mistake in hearing
Cheng Zhong carries out real-time imprinting to CD, and the main purpose of real-time imprinting is exactly the scene of true reduction hearing or court's trial at that time,
It avoids occurring in Interrogation Procedure the video scene video recording that some do not meet specification to be tampered afterwards.When real-time CD recording,
After first CD burning is full, closing disk is carried out, it, can be current video file and all notes files that currently generate when closing disk
It is stored on the CD, this CD, is that can carry out simply since notes file extent is consistent with the video in CD
It can be shown with bi-directional drive after processing；But since second CD when imprinting, there have been problem, second light
After disk imprinting when closing disk, the video file stored inside CD, is one section of video in entire Interrogation Procedure, and imprinting
Notes file is from court's trial is started to a file of all notes currently generated, this has resulted in notes time interval and reality
The problem that the video time section on border does not correspond to, this problem also result in, when playing this CD, cannot achieve notes file
It is driven with video bi-directional synchronization and plays display.
Invention content
Present invention seek to address that video file in imprinting CDs in real time in the prior art can not achieve with notes file it is double
To synchronously driven problem.
To solve the above-mentioned problems, the CD of real-time imprinting is enable to make notes file and video file bi-directional drive, this
Invention provides a kind of real-time carving method of CD, and this method is aobvious for making document files and video file bi-directional synchronization drive
Show, this method includes：
The entry time of start recording document content when court's trial starts；
The video data that imprinting generates in real time on CD when court's trial starts, record video data imprinting at the beginning of and
End time；
Time started and end time and the mapping relations of document content entry time are recorded in an index；
The document files of the index and real-time update is burnt in CD；
When CD is replaced, make to be a upper optical disk video data imprinting at the beginning of current optical disc video data imprinting
End time.
Further, the entry time of start recording document content includes when court's trial starts：
Start a thread for generating time tag when court's trial starts, interval generates a time tag at regular intervals；
The time tag of generation is inserted into document files present cursor position.
Further, the time tag includes：Relative time when court's trial starts.
Further, each CD further includes before imprinting document files or after the complete document files of imprinting：One is broadcast
Device is put to be burnt in CD.
The present invention separately provides a kind of real-time Writing device of CD, and the device is for keeping document files two-way with video file
Synchronous driving display, including：
Document content entry time logging modle, the entry time of start recording document content when starting for court's trial；
Video data imprinting module, when starting for court's trial on CD imprinting video data；
Video data writing time setting module, for recording video data imprinting at the beginning of and the end time, when
When CD is replaced, make at the end of at the beginning of current optical disc video data imprinting being a upper optical disk video data imprinting
Between；
Mapping relations logging modle is used for the mapping relations of time started and end time and document content entry time
It is recorded in an index；
Document files imprinting module, for the document files of the index and real-time update to be burnt in CD.
Further, document content entry time logging modle includes：
Time tag generation module starts a thread for generating time tag, at regular intervals when starting for court's trial
Interval generates a time tag；
It is inserted into module, for the time tag of generation to be inserted into document files present cursor position.
Further, the time tag includes：Relative time when court's trial starts.
Further, disc recording apparatus further includes player imprinting module, for a player to be burnt in CD.
The entry time of present invention start recording document content when court's trial starts, while CD burning is opened, Mei Geguang
At the beginning of also video data imprinting being recorded when disk imprinting and the end time, and the beginning of each optical disk video data imprinting
Time be a upper optical disk video data imprinting end time, by the beginning of video data imprinting and the end time with text
Shelves content entry time mapping relations be burnt in CD so that CD play when, according to video data imprinting
Time started and end time can find corresponding document files content, realize that video playback time progress is remembered with document content
It is mutually converted between the record time, and then realizes video playing and driven with the bi-directional synchronization that document files is shown.For the ease of inserting
Enter after CD can playing video file and document files, in CD burning, also imprinting has player in an optical disc.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Attached drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill of field, without having to pay creative labor, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is the real-time carving method flow chart of CD of one embodiment of the invention；
Fig. 2 is the flow chart of the entry time of the recording documents content of one embodiment of the invention；
Fig. 3 is the structure chart of the real-time Writing device of the CD of one embodiment of the invention；
Fig. 4 is the real-time carving method flow chart of the CD of another embodiment of the present invention.
Specific implementation mode
In order to which the technical characterstic and effect that make the present invention are more obvious, technical scheme of the present invention is done below in conjunction with the accompanying drawings
It further illustrates, the specific example that the present invention also can have other different is illustrated or implements, any those skilled in the art
The equivalents done within the scope of the claims belong to the protection category of the present invention.
It should be noted that video data involved in the present invention generates in real time, document files is with the time
Real-time update is elapsed, the present invention is applied to the scene of real-time imprinting video file and document files, when such as court hearing, in order to
Ensure that video file and document files are not tampered, need in court trial process real-time imprinting video data and document files.
As shown in FIG. 1, FIG. 1 is the real-time carving method flow chart of the CD of one embodiment of the invention, this method can make
CD realizes that document shows that the real-time carving method of CD includes the following steps with the driving of video bi-directional synchronization when playing：
Step S11：The entry time of start recording document content when court's trial starts；
Specifically, as shown in Fig. 2, step S11 further comprises：
Step S111：Start a thread for generating time tag when court's trial starts, interval generates for the moment at regular intervals
Between label；Wherein, the least unit of the time tag is the second, and time interval can be set as 1~10 second.
Step S112：The time tag of generation is inserted into document files present cursor position.
In one embodiment of the invention, relative time when time tag starts for court's trial, time tag is to start court's trial
It it is initial 0 moment at the time of instruction issues, form is such as：B009310 indicates relative time when time tag generates, i.e., certainly
Start the 9310th second of court's trial.
In another embodiment of the present invention, time tag further includes absolute time when time tag generates, and form is：
B009310t8552678093, wherein b009310 represent the relative time when time tag generates, i.e., and the since the court's trial
9310 seconds, t8552678093 represented absolute time when time label generate, and CTime values are in corresponding WinAPI
8552678093.By recording absolute time, respective file time and video record time can be recorded in real time.
In one embodiment of the invention, also start video recording recording system when court's trial starts, for recording court trial process.
Step S12：Real-time CD recording system, the video counts that imprinting generates in real time on CD are opened when court's trial starts
According to, during each CD burning, record video data imprinting at the beginning of and the end time；
Step S13：Time started and end time and the mapping relations of document content entry time are recorded in an index
In；
Step S14：The document files of the index and real-time update is burnt in CD, the quarter of a CD is completed
Record.
In the present embodiment, (there are certain spaces for imprinting text for the video data that first imprinting generates in real time in a CD
Files), at the beginning of recording video data imprinting, after the space imprinting of the CD burning video data is full, record regards
The end time of frequency data carving, when the document files and record of imprinting real-time update have beginning in the remaining space of the CD
Between and end time and document content entry time mapping relations index, complete the imprinting of the CD.
Continue the video data that imprinting generates in real time on other CDs in the same way, wherein when CD is replaced,
Make be at the beginning of current optical disc video data imprinting upper optical disk video data imprinting end time.
In detail, bigger in view of video data, about with the video per second for generating 2Mbps, video data produces in real time
Raw, in CD, document files is smaller for imprinting at any time, and disposably whole imprintings, therefore, can in CD when CD closing disk
A time thread (initial time of the time thread can be identical as the initial time of time tag thread) is set, according to the time
At the beginning of thread records each optical disk video data imprinting and the end time, ignore the time of document files imprinting consumption.
In one embodiment of the invention, the video data generated in real time is first stored in caching, and a CD burning completely continues to carve
When recording next CD, video is (video data is obtained from caching) of the continuous imprinting of video of a then upper CD,
It will be in current whole document files imprintings to remaining space in each CD.
The present invention is marked the entry time of document content in video process, and is also recorded for each CD and regards
At the beginning of frequency data carving and the end time, when CD is replaced, at the beginning of the video data imprinting for making next CD
Between it is identical as the upper end time of video data imprinting of a CD, by time started and end time and document content typing
The mapping relations of time are recorded in an index, and the index is burnt in CD.After CD places CD-ROM drive, player starts
When, read the index in CD, according to index, at the beginning of obtaining video data imprinting and the end time, and according to this two
A time loads the document content and video content of the period, the information realization video file and document loaded according to player
The bi-directional synchronization driving display of file, the process of bi-directional synchronization driving display will be described in detail in the embodiment below,
It is first not described herein.
In another embodiment of the present invention, each CD further includes after imprinting document files or the complete document files of imprinting：
For one player of imprinting to the remaining space of CD, video file and document files can be realized by being inserted into after CD thereby using family
It plays.
As shown in figure 3, disc recording apparatus provided by the invention includes：Document content entry time logging modle 31 regards
Frequency data carving module 32, video data writing time setting module 33, mapping relations logging modle 34 and document files imprinting
Module 35.
The entry time of start recording document content when document content entry time logging modle 31 starts for court's trial；Depending on
The video data that imprinting generates in real time on CD when frequency data carving module 32 starts for court's trial；Video data writing time
At the beginning of setting module 33 is used to record video data imprinting and the end time makes current optical disc regard when CD is replaced
It is the end time of a upper optical disk video data imprinting at the beginning of frequency data carving；Mapping relations logging modle 34 is used for
Time started and end time and the mapping relations of document content entry time are recorded in an index；Document files imprinting mould
Block 35 is used to the document files of the index and real-time update being burnt in CD.
Further, document content entry time logging modle further includes time tag generation module and is inserted into module, when
Between tag generation module start a thread for generating time tag when starting for court's trial, interval generates for the moment at regular intervals
Between label；Module is inserted into be used to the time tag of generation being inserted into document files present cursor position.
It can realize that video playing is shown with document files using the CD of disc recording apparatus imprinting provided by the invention
Bi-directional synchronization driving.
Below by real-time imprinting video file in court trial process and notes file for, illustrate the present invention make document files with
The real-time carving method of the CD of video file bi-directional synchronization driving display, as shown in figure 4, including：
Step S41：When court's trial starts, the video recording of activation system is recorded, while starting a timing generated time label line
The main function of journey, the thread is exactly that the time tag is inserted by generation time label btime after the time tag generates
Put down file present cursor position.
Specifically, time tag be with start court's trial instruction issue at the time of be initial 0 moment, least unit be the second when
Between label, the time interval of generation time label could be provided as 1~10 second, in the present embodiment, generate a time within every 10 seconds
Label.
Step S42：The real-time RW system that CD is opened when court's trial starts starts the video data that imprinting generates in real time,
Record video data imprinting at the beginning of gstart_time_0, a file organization index in record the time started and when
Between label btime mapping relations.
Specifically, in the present embodiment, time of video data imprinting is also to be first at the time of starting that court's trial instruction issues
Began for 0 moment, time and the time tag of video data imprinting are mapping relations one by one.
Step S43：Wait for CD setting space (system setting there are certain spaces for subsequent other files supplement
Imprinting) after imprinting is full, the end time gend_time_1 of video data imprinting is recorded, it is single that terminate writing time, which be also with the second,
Position, such as gend_time:5400, that is, start the imprintings for terminating this CD in 1.5 hours after court's trial is recorded.In file group
Knit the mapping relations that the end time and time tag btime are recorded in index.
Step S44：Then, the notes file generated in real time is burnt in the remaining space of CD.
Further, it can play in order to which user is inserted into CD, player be also burnt to CD, closing disk completes first
The imprinting of a CD.
The present embodiment is able to know that player needs which video file, which notes text played according to file organization index
Part etc. when so as to dvd playback video, can be put down according to the beginning writing time and end writing time of video data with record
The time tag of file content carries out operation, so as to which video time progress position is accurately positioned.
Step S45：Start the video data that imprinting generates in real time on second CD, sets and record second CD
Video data imprinting at the beginning of be gstart_time_1, i.e., with the video data imprinting of a upper CD at the end of
Between it is identical.
Step S46：(it is full to refer to video data imprinting) after second CD burning is full, at the end of recording video data imprinting
Between gend_time_2, at the beginning of recording video data imprinting in file organization index and end time and time tag
Mapping relations.
Step S47：The notes file generated in real time is burnt to second CD, player is burnt to second light
Disk.
Step S48：Repeat the above steps S45~step S47, until court's trial terminates the complete video data generated in real time of imprinting
Until.
When playing the CD of imprinting as stated above, the player in CD can be booted up automatically, be read in CD
File organization index, at the beginning of obtaining the imprinting of this optical disk video data and the mapping of end time and time tag close
System, to realize the bi-directional synchronization driving of video file and document files.
It is described in detail how video drives how document, document drive video below with two embodiments, the two realities
Apply in example, time tag start generate the moment be 0, the video data imprinting time started also be 0, every 10s generate a label.
Video drive document：
1) when video is in automatic play or when user drags player progress bar, system acquisition to current video text
The reproduction time t in seconds of part；Assuming that it is when starting that the reproduction time of the video file in each CD, which is with 0,
Between；
2) according to time t, optical disk video data imprinting at the beginning of gstart_time, so that it may to obtain current optical disc
The play position of video data should be corresponding with the time tag of the t+gstart_time in document files, pay attention to here
Play position it is stringent not corresponding with the label of document, similar correspondence, reproduction time is to be accurate to the second, and document time
Label is the time scale for being accurate to 10 seconds.
Specifically, the end writing time gend_ for starting writing time gstart_time and video data of video data
Time is serial number in seconds, and time tag btime be since 0, every 10 seconds generate a label, this
A label is that fixed interval generates, from numerically meeting btime1=[gstart_time/10] * 10；Btime2=
[gend_time/10]*10；Wherein A=[B] indicates that A is the integer part of B blocked.
3) it is based on t+gstart_time, so that it may when in document files, finding document files matched with the time point
Between label btime (wherein, btime=[(t+gend_time)/10] * 10), can be in document according to time tag btime
Document display area shows this corresponding document content of btime time tags, is achieved that and drives document by the progress of video
The display of content.
Document drives video：
1) otherwise video is driven by dragging document, in this CD, due to gstart_time, gend_time time
It is to determine, when showing document, the document content of the btime of the document files label less than gstart_time would not be shown
Show, the document content more than the btime of the document files label of gend_time times will not be shown, the two time values from
Generally confirm the boundary that the document files in this CD can be revealed；More than the document content except this boundary at this
It can not be revealed in CD, avoid the occurrence of that can not find can not matched video with document content；Assuming that corresponding gstart_
The document time label of time, gend_time are btime1, btime2.
2) when dragging document content in document files when us, player gets the text that this document content includes
Shelves time tag btime, and then btime-btime1 are obtained, the time difference of the two document time labels, so that it may to be used to
In the corresponding video times of the direct SEEK of video file；It thereby realizes and video is driven by dragging document.
The entry time of present invention start recording document content when court's trial starts, while CD burning is opened, Mei Geguang
At the beginning of also video data imprinting being recorded when disk imprinting and the end time, and the beginning of each optical disk video data imprinting
Time be a upper optical disk video data imprinting end time, by the beginning of video data imprinting and the end time with text
Shelves content entry time mapping relations be burnt in CD so that CD play when, according to video data imprinting
Time started and end time can find corresponding document files content, realize in video playback time progress and document files
Hold and mutually converted between recording the time, and then realizes video playing and driven with the bi-directional synchronization that document files is shown.In order to just
After being inserted into CD can playing video file and document files, in CD burning, also imprinting has player in an optical disc.
The above is only used to illustrate the technical scheme of the present invention, any those of ordinary skill in the art can without prejudice to
Under the spirit and scope of the present invention, modifications and changes are made to the above embodiments.Therefore, the scope of the present invention should regard
Subject to right.
Claims (8)
1. a kind of real-time carving method of CD, which is characterized in that this method is for keeping document files and video file two-way same
Step driving display, this method include：
The entry time of start recording document content when court's trial starts；
The video data that imprinting generates in real time on CD when court's trial starts at the beginning of recording video data imprinting and terminates
Time；
Time started and end time and the mapping relations of document content entry time are recorded in an index；
The document files of the index and real-time update is burnt in CD；
When CD is replaced, make be at the beginning of current optical disc video data imprinting a upper optical disk video data imprinting knot
The beam time；
The time of video data imprinting is to start at the time of court's trial instruction issues as initial time.
2. the real-time carving method of CD according to claim 1, which is characterized in that start recording document when court's trial starts
The entry time of content includes：
Start a thread for generating time tag when court's trial starts, interval generates a time tag at regular intervals；
The time tag of generation is inserted into document files present cursor position.
3. the real-time carving method of CD according to claim 2, which is characterized in that the time tag includes：Court's trial
Relative time when beginning.
4. the real-time carving method of CD according to claim 1, which is characterized in that each CD is in imprinting document files
Further include before or after the complete document files of imprinting：One player is burnt in CD.
5. a kind of real-time Writing device of CD, which is characterized in that the device is for keeping document files and video file two-way same
Step driving display, including：
Document content entry time logging modle, the entry time of start recording document content when starting for court's trial；
Video data imprinting module, the video data that imprinting generates in real time on CD when starting for court's trial；
Video data writing time setting module, for recording video data imprinting at the beginning of and the end time, work as CD
When replacement, make be at the beginning of current optical disc video data imprinting a upper optical disk video data imprinting end time；
Mapping relations logging modle, for recording time started and end time and the mapping relations of document content entry time
In an index；
Document files imprinting module, for the document files of the index and real-time update to be burnt in CD；
The time of video data imprinting is to start at the time of court's trial instruction issues as initial time.
6. the real-time Writing device of CD according to claim 5, which is characterized in that document content entry time records mould
Block includes：
Time tag generation module starts a thread for generating time tag, is spaced at regular intervals when starting for court's trial
Generate a time tag；
It is inserted into module, for the time tag of generation to be inserted into document files present cursor position.
7. the real-time Writing device of CD according to claim 6, which is characterized in that the time tag includes：Court's trial
Relative time when beginning.
8. the real-time Writing device of CD according to claim 5, which is characterized in that further include player imprinting module,
For a player to be burnt in CD.
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| CN107277395A (en) * | 2016-04-08 | 2017-10-20 | 北京国双科技有限公司 | The method and apparatus for adding trial video captions |
| CN107273388A (en) * | 2016-04-08 | 2017-10-20 | 北京国双科技有限公司 | The treating method and apparatus and querying method and device of trial video |
| CN112243161A (en) * | 2019-07-16 | 2021-01-19 | 武汉佳世创科技有限公司 | Recording file playing method and system with label function |
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| JP3903561B2 (en) * | 1997-12-26 | 2007-04-11 | ソニー株式会社 | Recording apparatus and recording method |
| CN101930564A (en) * | 2010-07-30 | 2010-12-29 | 北京华夏电通科技有限公司 | Method for manually and automatically dotting on record during court trial by court clerk |
| CN102723085B (en) * | 2012-06-18 | 2015-01-14 | 苏州科达科技股份有限公司 | Device for controlling synchronous double-disc burning |
| US20150310358A1 (en) * | 2014-04-25 | 2015-10-29 | Mohammad Iman Khabazian | Modeling consumer activity |
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