CN104702876B - A kind of Multi-path synchronous back method and device - Google Patents
A kind of Multi-path synchronous back method and device Download PDFInfo
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- CN104702876B CN104702876B CN201410029642.4A CN201410029642A CN104702876B CN 104702876 B CN104702876 B CN 104702876B CN 201410029642 A CN201410029642 A CN 201410029642A CN 104702876 B CN104702876 B CN 104702876B
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Abstract
The invention discloses a kind of Multi-path synchronous back method and device：Determine playback duration section and need to carry out M passage of Multi-path synchronous playback, M is the positive integer more than 1；For each passage, the video file being consistent with the playback duration section is found out from video file corresponding to the passage respectively；According between at the beginning of each video file found out and the end time, the passage as main channel in the different sub-periods in the playback duration section, the interior passage presence video file to be played back as main channel of each sub-period are determined respectively；According to result is determined, Multi-path synchronous playback is carried out in the way of different sub-period switching at runtime main channels.Using scheme of the present invention, it is possible to increase search efficiency of video file etc..
Description
Technical field
The present invention relates to field of video monitoring, more particularly to a kind of Multi-path synchronous back method and device.
Background technology
Existing digital hard disc video recorder（DVR, Digital Video Recorder）Played back etc. Multi-path synchronous is provided with
Function.Multichannel refers to DVR multiple video channels, represents a passage all the way；Synchronized playback is that finger can play back multiple lead to simultaneously
Video file of the road within the same period, the playback duration of each passage are synchronous with main channel holding；Correspondingly, main channel refers to
A passage in Multi-path synchronous replayed section as normative reference.
Multi-path synchronous playback technology is mainly used in substantial amounts of video file and searched.Such as：1:00~3:00 this time
There are abnormal conditions in section, then then need playback 1:00~3:The video recording text of all control points in 00 this period
Part, to search specific abnormal place and reason etc..
In actual applications, in order to save memory space of hard disk etc., for each passage, it is generally all without 24
Hour is recorded a video always, but is intermittently recorded a video, and such as when meeting video recording condition set in advance every time, is then carried out
Video recording, and generate a video file.
In addition, according to the implementation of existing Multi-path synchronous playback technology, before Multi-path synchronous playback is proceeded by, i.e.,
Need first to determine main channel, can be specified by user, can also be selected according to a certain rule by DVR, moreover, once it is determined that will
A certain passage is as main channel, then and in whole Multi-path synchronous replayed section, the passage will just be used as main channel always, without
Other passages can be changed to.
So, if in specified playback duration section, the main channel presence always video file to be played back, then
The video file of other passages also can be carried out playing back, but if the record to be played back is not present in main channel in a certain sub-period
As file, i.e. main channel is not recorded a video in the sub-period, then due to the playback duration needs of other passages and main channel
Keep synchronous, even if therefore other passages also will be unable to be played back, so as to reduce video recording in the presence of the video file to be played back
The search efficiency of file.
Such as：The playback duration section that user specifies is 1:00~3:00, and specify 16 passages while played back, and
Dedicated tunnel 2 is used as main channel, but passage 2 is 2:00~3:The video file to be played back is not present in 00 this sub-period,
So whole replayed section can only be 2:Just terminate when 00, correspondingly, other passages are 2:00~3:In 00 this sub-period
Video file will be unable to be played back.
The content of the invention
In view of this, the invention provides a kind of Multi-path synchronous back method and device, it is possible to increase the lookup effect of video recording
Rate.
In order to achieve the above object, the technical proposal of the invention is realized in this way：
A kind of Multi-path synchronous back method, including：
Determine playback duration section and need to carry out M passage of Multi-path synchronous playback, M is the positive integer more than 1；
For each passage, find out from video file corresponding to the passage be consistent with the playback duration section respectively
Video file；
According between at the beginning of each video file found out and the end time, determine respectively in the playback duration section
Different sub-periods in passage as main channel, the interior passage presence video recording to be played back as main channel of each sub-period
File；
According to result is determined, Multi-path synchronous playback is carried out in the way of different sub-period switching at runtime main channels.
A kind of Multi-path synchronous playback reproducer, including：
First processing module, for determining playback duration section and needing to carry out M passage of Multi-path synchronous playback, M is
Positive integer more than 1, and notify to Second processing module；
The Second processing module, for for each passage, being found out respectively from video file corresponding to the passage
The video file being consistent with the playback duration section；According between at the beginning of each video file found out and the end time,
The passage as main channel in the different sub-periods in the playback duration section is determined respectively, is led in each sub-period as main
The passage in the road presence video file to be played back；According to result is determined, according to the side of different sub-period switching at runtime main channels
Formula carries out Multi-path synchronous playback.
It can be seen that using scheme of the present invention, no longer only immobilized in whole Multi-path synchronous replayed section using one
Main channel, but Multi-path synchronous playback is carried out in the way of different sub-period switching at runtime main channels, so as to as much as possible
So that all video files in playback duration section can be played back, and then improve the search efficiency of video file.
Brief description of the drawings
Fig. 1 is the flow chart of Multi-path synchronous back method embodiment of the present invention.
Fig. 2 is the schematic diagram of played file list of the present invention.
Fig. 3 is switching at runtime schematic diagram in main channel of the present invention.
Fig. 4 is the composition structural representation of Multi-path synchronous playback reproducer embodiment of the present invention.
Embodiment
In order that technical scheme is clearer, clear, develop simultaneously embodiment referring to the drawings, to institute of the present invention
The scheme of stating is described in further detail.
Fig. 1 is the flow chart of Multi-path synchronous back method embodiment of the present invention.As shown in figure 1, comprise the following steps 11~
14。
Step 11：Determine playback duration section and need to carry out M passage of Multi-path synchronous playback, M is just whole more than 1
Number.
Playback duration section and the passage for needing to carry out Multi-path synchronous playback can be set by the user.
Step 12：For each passage, found out respectively from video file corresponding to the passage and playback duration section phase
The video file met.
In this step, for each passage, following handle can be carried out respectively：
A, for each video file corresponding to the passage, between determining respectively at the beginning of the video file and the end time
With the presence or absence of overlapping between the period limited and playback duration section, if it is, the video file to be defined as and play back
The video file that period is consistent；
B, whether the total number for the video file that determination is consistent with playback duration section is 0, if it is not, then generating the passage
Played file list, may include in played file list：The channel number of the passage, the record being each consistent with playback duration section
As the predetermined information of file, the predetermined information includes：Time started and end time, if it is, can terminate to handle.
For each video file, at the beginning of the video file between and period for limiting end time with returning
Put between the period exist it is overlapping can refer to partly overlap or refer to it is completely overlapped.
Illustrate：
Playback duration section is 1:00~3:00, at the beginning of a certain video file between and the end time be respectively 12:50 Hes
2:00, then between period that the end time limits and playback duration section be then part between at the beginning of the video file
It is overlapping；
Equally, playback duration section is 1:00~3:00, at the beginning of a certain video file between and the end time be respectively 1:
00 and 3:00, then be then between period that the end time limits and playback duration section between at the beginning of the video file
It is completely overlapped.
For each passage, the total number for the video file being consistent corresponding to it with playback duration section may be one
It is individual, it is also possible to be multiple, it is also possible to be 0.
If 0, then it can not deal with；If one or more, then need to generate the played file row of the passage
Table, it may include in played file list：The channel number of the passage, the video file being each consistent with playback duration section it is predetermined
Information, the predetermined information may include：Time started and end time.
In addition, the predetermined information can also further comprise：The type of video file, the storage address of video file（
Storage address in hard disk）And length of video file etc., subsequently it can correspondingly carry out video file according to these information
Playback.
Fig. 2 is the schematic diagram of played file list of the present invention.As illustrated in fig. 2, it is assumed that M played file list is co-existed in,
The M passage that channel number is 1~M is corresponded respectively to, n represents the video recording text being consistent corresponding to each passage with playback duration section
The total number of part, it is positive integer.
Step 13：According between at the beginning of each video file found out and the end time, playback duration is determined respectively
Passage in different sub-periods in section as main channel, what the interior passage presence as main channel of each sub-period to be played back
Video file.
The specific implementation of this step can be：
A, using playback duration section at the beginning of between as the reference time, and using each video file found out as search model
Enclose；
B, determine in seeking scope with the presence or absence of the time started earlier than or equal to the reference time video file；
If it is, using a time started earlier than or equal to the reference time video file as newest reference text
Part；
If it is not, then time started and reference time closest video file are determined from seeking scope, and will
It is as newest reference paper；
Passage corresponding to newest reference paper is defined as main channel, and generates a main channel information, is added to master
In channel list, the main channel information includes：Between at the beginning of the main channel, the end time of the main channel, and the master
The channel number of passage；
It is equal to or is later than playback earlier than or equal to reference time and end time between at the beginning of the newest reference paper
During the end time of period, at the beginning of the main channel between be the reference time, the end time of the main channel is playback duration
The end time of section；
It is later than the reference time between at the beginning of the newest reference paper and the end time is equal to or be later than playback duration section
End time when, at the beginning of the main channel between be at the beginning of newest reference paper between, the end time of the main channel
For the end time of playback duration section；
Earlier than or equal to reference time and end time earlier than playback duration section between at the beginning of the newest reference paper
End time when, at the beginning of the main channel between be the reference time, the end time of the main channel is newest reference paper
End time；
Be later than the reference time between at the beginning of the newest reference paper and the end time earlier than playback duration section end
During the time, at the beginning of the main channel between be at the beginning of newest reference paper between, the end time of the main channel is newest
Reference paper end time；
Also, when newest reference paper end time earlier than playback duration section end time when, perform step C,
Otherwise, end is handled；
C, the video recording text for being later than the end time of newest reference paper in seeking scope with the presence or absence of the end time is determined
Part；If it is, be later than to the video file of the end time of newest reference paper as seeking scope the end time, will most
The end time of new reference paper repeats step B as the reference time, otherwise, end processing.
In above-mentioned steps B, when in seeking scope the time started earlier than or equal to the video file of reference time total number
During more than 1, the video file of end time the latest can be therefrom selected, as newest reference paper；
Similarly, when the total number of the closest video file of time started and reference time in seeking scope is more than 1
When, the video file of end time the latest can be therefrom selected, as newest reference paper.
The video file of end time the latest is selected to be reduced in Multi-path synchronous replayed section as newest reference paper
Main channel switching times, so as to save system resource.
In addition, it is assumed that the reference time is 2:00, and be 1 between assuming at the beginning of a video file in seeking scope:
50, at the beginning of another video file between be 2:05, at the beginning of other video files between be later than 2:05, then such as step
Described in B, it is 1 that the time started, which may be selected,:50 video file is as newest reference paper, rather than the time started is 2:05
Video file, correspondingly, will the time started be 1:Passage corresponding to 50 video file is so located as newest main channel
Reason is advantageous in that：The playback of continuous Multi-path synchronous can be achieved, and be unlikely to the break period for occurring 5 minutes, so as to cause this 5
The playback of video file can not be carried out in minute, and then reduce the search efficiency of video file.
Said process can be illustrated below：
Assuming that the playback duration section that user specifies is 1:00~3:00, it is necessary to carry out Multi-path synchronous playback port number be 4,
Respectively passage 1, passage 2, passage 3 and passage 4；
Wherein, the video file being consistent with playback duration section corresponding to passage 1 is：Video file a1 and video file
Between at the beginning of a2, video file a1 and the end time is respectively 12:50 and 1:Between at the beginning of 30, video file a2 and terminate
Time is respectively 2:40~3:10；
The video file being consistent with playback duration section corresponding to passage 2 is：Video file b1, the time started is with the end of
Between be respectively 1:30~2:30；
The video file being consistent with playback duration section corresponding to passage 3 is：Video file c1, the time started is with the end of
Between be respectively 1:20 and 2:50；
The video file being consistent with playback duration section corresponding to passage 4 is：Video file d1, the time started is with the end of
Between be respectively 1:55 and 2:55；
So, 1:00~1:, can be using passage 1 as main channel in 30 sub-period, corresponding reference paper is video recording
File a1；1:30~2:, can be using passage 3 as main channel in 50 sub-period, corresponding reference paper is video file c1；
2:50~3:, can be using passage 1 as main channel in 00 sub-period, corresponding reference paper is video file a2.
Step 14：According to result is determined, Multi-path synchronous is carried out in the way of different sub-period switching at runtime main channels and is returned
Put.
In this step, can according to generation time of each main channel information in the list of main channel by the order after arriving first,
Different sub-period switching at runtime main channels, and according to the information recorded in each played file list, realize that Multi-path synchronous plays back.
Fig. 3 is switching at runtime schematic diagram in main channel of the present invention.As shown in figure 3, with reference to the example above, 1:00~1:
In 30 this sub-period, according to by passage 1 for main channel in a manner of carry out Multi-path synchronous playback, be switched to passage 3 afterwards, that is, exist
1:30~2:In 50 this sub-period, according to by passage 3 for main channel in a manner of carry out Multi-path synchronous playback, be switched to again afterwards
Passage 1, i.e., 2:50~3:In 00 this sub-period, according to by passage 1 for main channel in a manner of carry out Multi-path synchronous playback；Separately
Outside, can be from 1 for video file a1:00 starts to play back it, i.e., it will not be played back before this, right
For video file a2, when arrival 3:When 00, i.e., it can terminate to play back it, i.e., again it will not be continued to play back,
, can be from 1 for video file c1:20 start to 2:50 terminate to play back it, simply 1:30~2:50 this
In sub-period, its corresponding passage is main channel, 1:20~1:In 30 this sub-period, its corresponding passage is not main logical
Road.
In addition, in Multi-path synchronous replayed section, can be according to the information recorded in each played file list, for each record
As file, the video file is obtained according to the storage address of the video file respectively, and according to the type of the video file, beginning
Time and length etc. carry out the playback of the video file, are implemented as prior art.
Based on above-mentioned introduction, Fig. 4 is the composition structural representation of Multi-path synchronous playback reproducer embodiment of the present invention.Such as Fig. 4
It is shown, including：
First processing module, for determining playback duration section and needing to carry out M passage of Multi-path synchronous playback, M is
Positive integer more than 1, and notify to Second processing module；
Second processing module, for for each passage, find out respectively from video file corresponding to the passage and institute
State the video file that playback duration section is consistent；According between at the beginning of each video file found out and the end time, respectively
Determine the passage as main channel in different sub-periods in the playback duration section, each sub-period is interior as main channel
The passage presence video file to be played back；According to result is determined, enter in the way of different sub-period switching at runtime main channels
Row Multi-path synchronous plays back.
Specifically,
Second processing module can be directed to each passage, and be directed to each video file corresponding to the passage, and determining respectively should
With the presence or absence of overlapping between period that the end time limits and the playback duration section between at the beginning of video file, such as
Fruit is that the video file is then defined as to the video file being consistent with the playback duration section；It is determined that with the playback duration
Whether the total number for the video file that section is consistent is 0, if it is not, then the played file list of the passage is generated, broadcasting text
Part list includes：The predetermined information of the channel number of the passage, the video file being each consistent with the playback duration section, institute
Stating predetermined information includes：Time started and end time.
In addition,
Second processing module can using the playback duration section at the beginning of between as the reference time, each video recording that will be found out
File performs following predetermined process as seeking scope, and according to the reference time and the seeking scope：
Determine in the seeking scope with the presence or absence of the time started earlier than or equal to the reference time video file；
If it is, using a time started earlier than or equal to the reference time video file as newest reference
File；
If it is not, then time started and the reference time closest video recording text are determined from the seeking scope
Part, and as newest reference paper；
Passage corresponding to newest reference paper is defined as main channel, and generates a main channel information, is added to master
In channel list, the main channel information includes：Between at the beginning of the main channel, the end time of the main channel, and the master
The channel number of passage；
It is equal to or is later than earlier than or equal to the reference time and end time between at the beginning of the newest reference paper
During the end time of the playback duration section, at the beginning of the main channel between be the reference time, at the end of the main channel
Between be the playback duration section end time；
It is later than the reference time between at the beginning of the newest reference paper and the end time is equal to or be later than described return
When putting the end time of period, at the beginning of the main channel between be at the beginning of newest reference paper between, the main channel
End time is the end time of the playback duration section；
Earlier than or equal to the reference time and end time earlier than described time between at the beginning of the newest reference paper
When putting the end time of period, at the beginning of the main channel between be the reference time, the end time of the main channel is most
The end time of new reference paper；
It is later than the reference time between at the beginning of the newest reference paper and the end time is earlier than the playback duration
During the end time of section, at the beginning of the main channel between be at the beginning of newest reference paper between, at the end of the main channel
Between be newest reference paper end time；
Also, Second processing module can be further used for, when the end time of newest reference paper is earlier than described time
When putting the end time of period, the knot for being later than newest reference paper in the seeking scope with the presence or absence of the end time is determined
The video file of beam time, if it is, the video file that the end time is later than to the end time of newest reference paper is made
For the seeking scope, using the end time of newest reference paper as the reference time, and repeat described predetermined
Processing, otherwise, end processing.
In addition,
Second processing module can be further used for, when in the seeking scope time started earlier than or equal to the reference
When the total number of the video file of time is more than 1, the video file of end time the latest is therefrom selected, as newest ginseng
Examine file；
When the total number of the closest video file of time started and the reference time in the seeking scope is more than 1
When, the video file of end time the latest is therefrom selected, as newest reference paper.
Further,
The predetermined information of the video file can also further comprise：The type of video file, the storage of video file
Location and the length of video file；
Correspondingly, Second processing module can be according to the generation time of each main channel information in the main channel list by elder generation
Order after arriving, in different sub-period switching at runtime main channels, and according to the information recorded in each played file list, realize
Multi-path synchronous plays back.
The specific workflow of Fig. 4 shown device embodiments refer to the respective description in preceding method embodiment, herein
Repeat no more.In actual applications, Fig. 4 shown devices can be DVR etc..
In summary, presently preferred embodiments of the present invention is these are only, is not intended to limit the scope of the present invention.
Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., it should be included in the present invention's
Within protection domain.
Claims (10)
- A kind of 1. Multi-path synchronous back method, it is characterised in that including：Determine playback duration section and need to carry out M passage of Multi-path synchronous playback, M is the positive integer more than 1；For each passage, the record being consistent with the playback duration section is found out from video file corresponding to the passage respectively As file；According between at the beginning of each video file found out and the end time, determine respectively in the playback duration section not With the passage in sub-period as main channel, as the passage presence of the main channel video recording to be played back text in each sub-period Part；According to result is determined, Multi-path synchronous playback is carried out in the way of different sub-period switching at runtime main channels；It is described carried out in the way of different sub-period switching at runtime main channels Multi-path synchronous playback include：According to the main channel The generation time of each main channel information in list by the order after arriving first, in different sub-period switching at runtime main channels.
- 2. according to the method for claim 1, it is characterised in thatIt is described to be directed to each passage, find out from video file corresponding to the passage be consistent with the playback duration section respectively Video file include：For each passage, following handle is carried out respectively：For each video file corresponding to the passage, limited between determining respectively at the beginning of the video file with the end time Period and the playback duration section between with the presence or absence of overlapping, if it is, the video file is defined as and described time Put the video file that the period is consistent；It is determined that whether the total number for the video file being consistent with the playback duration section is 0, if it is not, then generating the passage Played file list, the played file list include：The channel number of the passage, each it is consistent with the playback duration section The predetermined information of video file, the predetermined information include：Time started and end time.
- 3. according to the method for claim 2, it is characterised in thatAccording between at the beginning of each video file for finding out and the end time, determine respectively in the playback duration section Passage in different sub-periods as main channel includes：A, using the playback duration section at the beginning of between as the reference time, and using each video file found out as search model Enclose；B, determine in the seeking scope with the presence or absence of the time started earlier than or equal to the reference time video file；If it is, using a time started earlier than or equal to the reference time video file as newest reference text Part；If it is not, then time started and the reference time closest video file are determined from the seeking scope, And as newest reference paper；Passage corresponding to newest reference paper is defined as main channel, and generates a main channel information, is added to main channel In list, the main channel information includes：Between at the beginning of the main channel, the end time of the main channel, and the main channel Channel number；Earlier than or equal to the reference time and end time it is equal to or is later than between at the beginning of the newest reference paper and is described During the end time of playback duration section, at the beginning of the main channel between be the reference time, the end time of the main channel is The end time of the playback duration section；When being later than the reference time between at the beginning of newest reference paper and the end time is equal to or is later than the playback Between section end time when, at the beginning of the main channel between be at the beginning of newest reference paper between, the end of the main channel Time is the end time of the playback duration section；When between at the beginning of newest reference paper earlier than or equal to the reference time and end time earlier than the playback when Between section end time when, at the beginning of the main channel between be the reference time, the end time of the main channel is newest The end time of reference paper；It is later than the reference time between at the beginning of the newest reference paper and the end time is earlier than the playback duration section During the end time, at the beginning of the main channel between be at the beginning of newest reference paper between, the end time of the main channel is The end time of newest reference paper；Also, when newest reference paper end time earlier than the playback duration section end time when, perform step C, Otherwise, end is handled；C, the video recording text for being later than the end time of newest reference paper in the seeking scope with the presence or absence of the end time is determined Part；If it is, be later than to the video file of the end time of newest reference paper as the seeking scope end time, Using the end time of newest reference paper as the reference time, and step B is repeated, otherwise, end processing.
- 4. according to the method for claim 3, it is characterised in thatThis method further comprises：When in the seeking scope time started earlier than or equal to the video file of the reference time total number be more than 1 when, The video file of end time the latest is therefrom selected, as newest reference paper；When the total number of the closest video file of time started and the reference time in the seeking scope is more than 1, The video file of end time the latest is therefrom selected, as newest reference paper.
- 5. the method according to claim 3 or 4, it is characterised in thatThe predetermined information of the video file further comprises：The type of video file, the storage address of video file and record As the length of file.
- A kind of 6. Multi-path synchronous playback reproducer, it is characterised in that including：First processing module, for determining playback duration section and needing to carry out M passage of Multi-path synchronous playback, M is more than 1 Positive integer, and notify to Second processing module；The Second processing module, for for each passage, find out respectively from video file corresponding to the passage and institute State the video file that playback duration section is consistent；According between at the beginning of each video file found out and the end time, respectively Determine the passage as main channel in different sub-periods in the playback duration section, each sub-period is interior as main channel The passage presence video file to be played back；According to result is determined, enter in the way of different sub-period switching at runtime main channels Row Multi-path synchronous plays back；The Second processing module, generation time of each main channel information being further used in the main channel list by Order after arriving first, in different sub-period switching at runtime main channels.
- 7. device according to claim 6, it is characterised in thatThe Second processing module is directed to each passage, and is directed to each video file corresponding to the passage, determines the record respectively As between at the beginning of file between period that the end time limits and the playback duration section with the presence or absence of overlapping, if It is that the video file is then defined as to the video file being consistent with the playback duration section；It is determined that with the playback duration section Whether the total number for the video file being consistent is 0, if it is not, then generating the played file list of the passage, the played file List includes：The predetermined information of the channel number of the passage, the video file being each consistent with the playback duration section, it is described Predetermined information includes：Time started and end time.
- 8. device according to claim 7, it is characterised in thatThe Second processing module using the playback duration section at the beginning of between as the reference time, by each video recording found out text Part performs following predetermined process as seeking scope, and according to the reference time and the seeking scope：Determine in the seeking scope with the presence or absence of the time started earlier than or equal to the reference time video file；If it is, using a time started earlier than or equal to the reference time video file as newest reference text Part；If it is not, then time started and the reference time closest video file are determined from the seeking scope, And as newest reference paper；Passage corresponding to newest reference paper is defined as main channel, and generates a main channel information, is added to main channel In list, the main channel information includes：Between at the beginning of the main channel, the end time of the main channel, and the main channel Channel number；Earlier than or equal to the reference time and end time it is equal to or is later than between at the beginning of the newest reference paper and is described During the end time of playback duration section, at the beginning of the main channel between be the reference time, the end time of the main channel is The end time of the playback duration section；When being later than the reference time between at the beginning of newest reference paper and the end time is equal to or is later than the playback Between section end time when, at the beginning of the main channel between be at the beginning of newest reference paper between, the end of the main channel Time is the end time of the playback duration section；When between at the beginning of newest reference paper earlier than or equal to the reference time and end time earlier than the playback when Between section end time when, at the beginning of the main channel between be the reference time, the end time of the main channel is newest The end time of reference paper；It is later than the reference time between at the beginning of the newest reference paper and the end time is earlier than the playback duration section During the end time, at the beginning of the main channel between be at the beginning of newest reference paper between, the end time of the main channel is The end time of newest reference paper；Also, the Second processing module is further used for, when the end time of newest reference paper is earlier than the playback Between section end time when, determine at the end of being later than newest reference paper with the presence or absence of the end time in the seeking scope Between video file, if it is, to be later than to the video file of the end time of newest reference paper as institute the end time Seeking scope is stated, using the end time of newest reference paper as the reference time, and repeats the predetermined process, Otherwise, end is handled.
- 9. device according to claim 8, it is characterised in thatThe Second processing module is further used for, when in the seeking scope time started earlier than or equal to the reference time The total number of video file when being more than 1, therefrom select the video file of end time the latest, it is literary as newest reference Part；The Second processing module is further used for, closest when time started in the seeking scope and the reference time The total number of video file when being more than 1, therefrom select the video file of end time the latest, it is literary as newest reference Part.
- 10. device according to claim 8 or claim 9, it is characterised in thatThe predetermined information of the video file further comprises：The type of video file, the storage address of video file and record As the length of file.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN107635109A (en) * | 2016-07-19 | 2018-01-26 | 杭州海康威视数字技术股份有限公司 | One kind video recording player method and device |
| CN108174132B (en) * | 2016-12-07 | 2020-12-11 | 杭州海康威视数字技术股份有限公司 | Video file playback method and device |
| CN107231574A (en) * | 2017-07-05 | 2017-10-03 | 北京辰安信息科技有限公司 | Video broadcasting method and video play device |
| CN108966027A (en) * | 2018-08-15 | 2018-12-07 | 郑州云海信息技术有限公司 | A kind of audio video synchronization back method and device |
| CN114827680A (en) * | 2022-04-21 | 2022-07-29 | 上海艺赛旗软件股份有限公司 | Multi-channel video synchronous playing method, system, equipment and storage medium |
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| CN1860469A (en) * | 2003-10-16 | 2006-11-08 | 学校法人汉阳学院 | Method for serving multimedia data on demand using dynamic channel and apparatus there-of |
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| CN201781583U (en) * | 2010-01-22 | 2011-03-30 | 深圳市同洲电子股份有限公司 | Multichannel server video playback synchronous control system |
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