CN102867529B - Multimedia video time shaft displaying method, device, playing method and player - Google Patents
Multimedia video time shaft displaying method, device, playing method and player Download PDFInfo
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- CN102867529B CN102867529B CN201210325547.XA CN201210325547A CN102867529B CN 102867529 B CN102867529 B CN 102867529B CN 201210325547 A CN201210325547 A CN 201210325547A CN 102867529 B CN102867529 B CN 102867529B
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- 238000000034 method Methods 0.000 title claims abstract description 33
- 230000001747 exhibiting effect Effects 0.000 claims description 13
- 230000008602 contraction Effects 0.000 claims description 6
- 230000002035 prolonged effect Effects 0.000 abstract 1
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- 238000005516 engineering process Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 2
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Abstract
The invention provides a multimedia video time shaft displaying method, a multimedia video playing method, a multimedia video time shaft displaying device, and a multimedia video player, wherein the time shaft displaying method comprises the following steps of: conducting moving and motionlessness analysis to a multimedia video, dividing into a motionless video and a moving vide of at least two time periods, and determining the starting time and ending time of each time period; determining the length of each time period on the time shaft, wherein the occupied length of the motionless video is shortened on the time shaft, and the occupied length of the moving video is prolonged on the time shaft; and arranging the time periods on the time shaft for displaying in time sequence according to the determined length. According to the invention, the high time precision when in positioning time of time periods for moving images can be achieved while displaying larger time span aiming at videos with larger time span and main motionless images, and the problem that the time span and the time precision can not simultaneously meet the demands on the same time shaft can be solved.
Description
Technical field
The present invention relates to multimedia technology field, particularly relate to a kind of exhibiting method of multimedia video time shaft, multimedia video playing method, the demonstration device of multimedia video time shaft and multimedia video player.
Background technology
In multimedia video is play, time shaft not only intuitively can represent playing progress rate, also can be used for dragging broadcasting fast.Traditional time shaft uses uniform scale, and on axle at the same time, unit length represents identical time span.For the screen that time span is larger, because the total length of time shaft is limited, the too low problem of precision will be there is in traditional time shaft, such as one section of video overall length is 100 hours, in traditional coordinate axis, the length of 1 centimetre just may need the video recording representing several hours, is difficult to accurate positioning video on a timeline.In field of video monitoring, usually there is the video of large time span, but overwhelming majority time picture remains static in video, such as span reaches video recording in 1 day for some time, the picture being in active state altogether may less than one hour, we wish that use time shaft represents the time span of 1 day, and can locate accurately the time period that video is in active state again, traditional time shaft obviously cannot be satisfied the demand simultaneously.
Summary of the invention
The features and advantages of the present invention are partly stated in the following description, or can be apparent from this description, or learn by putting into practice the present invention.
For overcoming the problem of prior art, the invention provides a kind of multimedia video time shaft exhibiting method, multimedia video playing method and corresponding multimedia video player, while and video based on still frame comparatively large for time span at one time axle can represent larger time span, there is higher time precision during time period timi requirement to field motion, solve the problem that on axle at one time, time span and time precision cannot be satisfied the demand simultaneously.
It is as follows that the present invention solves the problems of the technologies described above adopted technical scheme:
According to an aspect of the present invention, a kind of exhibiting method of multimedia video time shaft is provided, comprises:
Sound analysis is carried out to multimedia video, is divided into stationary video and the sport video of at least two time periods, and determine initial time and the end time of each time period;
Determine length on a timeline of each time period, the contraction in length wherein taken on a timeline by stationary video, the extension taken on a timeline by sport video;
In chronological order each time period is represented on a timeline according to determined length arrangement.
According to one embodiment of present invention, by each time period according to determined length arrangement on a timeline time, calculate the initial time of each time period or end time corresponding on a timeline coordinate, and mark calculated coordinate and time point corresponding to each coordinate on a timeline.
According to one embodiment of present invention, determine that length on a timeline of each time period is the length utilizing stationary video and sport video, and the time scale ratio combining stationary video and the sport video preset is determined, wherein the time scale ratio of stationary video and sport video is greater than 1.
According to another aspect of the present invention, a kind of multimedia video playing method is provided, comprises:
Utilize the exhibiting method of the multimedia video time shaft described in above-mentioned arbitrary technical scheme to represent time shaft, and obtain the coordinate that user clicks on a timeline;
Calculate the time point representated by clicked coordinate, multimedia video is jumped to the time point calculated and start to play.
According to one embodiment of present invention, the time point calculated representated by clicked coordinate is after obtaining the coordinate clicked on a timeline of user, first determine the time period belonging to clicked coordinate on a timeline, again according to the position of clicked coordinate in the time period, the length of binding time section, and initial time or end time realize.
According to a further aspect of the invention, a kind of demonstration device of multimedia video time shaft is provided, comprises:
Sound analysis module, for carrying out sound analysis to multimedia video, is divided into stationary video and the sport video of at least two time periods, and determines initial time and the end time of each time period;
Time shaft represents module, and for determining length on a timeline of each time period, the contraction in length wherein taken on a timeline by stationary video, the length taken on a timeline by sport video is elongated; And in chronological order each time period is represented on a timeline according to determined length arrangement.
According to one embodiment of present invention, time shaft represent module by each time period according to determined length arrangement on a timeline time, calculate the initial time of each time period or end time corresponding on a timeline coordinate, and mark calculated coordinate and time point corresponding to each coordinate on a timeline.
According to one embodiment of present invention, time shaft represents module and determines that length on a timeline of each time period is the length utilizing stationary video and sport video, and the time scale ratio combining stationary video and the sport video preset is determined, wherein the time scale ratio of stationary video and sport video is greater than 1.
According to a further aspect of the invention, a kind of multimedia video player is provided, comprises:
The demonstration device of the multimedia time axle described in above-mentioned arbitrary technical scheme, for representing time shaft, and obtains the coordinate that user clicks on a timeline;
Decoding represents module, for calculating the time point representated by clicked coordinate, multimedia video being jumped to the time point calculated and starting to play.
According to one embodiment of present invention, it is after obtaining the coordinate clicked on a timeline of user that decoding represents the module time point calculated representated by clicked coordinate, first determine the time period belonging to clicked coordinate on a timeline, again according to the position of clicked coordinate in the time period, the length of binding time section, and initial time or end time realize.
The invention provides a kind of multimedia video time shaft exhibiting method, multimedia video playing method and corresponding multimedia video player, while and video based on still frame comparatively large for time span at one time axle can represent larger time span, higher time precision is had during time period timi requirement to field motion, at one time axle uses different time scales to the time period of multimedia picture still of a large time span and the time period of field motion, solve the problem that on axle at one time, time span and time precision cannot be satisfied the demand simultaneously.
By reading instructions, those of ordinary skill in the art will understand the characteristic sum content of these technical schemes better.
Accompanying drawing explanation
Below by with reference to accompanying drawing describe the present invention particularly in conjunction with example, advantage of the present invention and implementation will be more obvious, wherein content shown in accompanying drawing is only for explanation of the present invention, and does not form restriction of going up in all senses of the present invention, in the accompanying drawings:
Fig. 1 is the exhibiting method process flow diagram of embodiment of the present invention multimedia video time shaft;
Fig. 2 is the method flow diagram that embodiment of the present invention axle service time carries out multimedia positioning action;
Fig. 3 is the time shaft schematic diagram that in the embodiment of the present invention, multimedia video is play;
Fig. 4 is embodiment of the present invention multimedia video player system block diagram.
Embodiment
For solving traditional time shaft problem that time span and time precision cannot be satisfied the demand on axle at one time simultaneously, the embodiment of the present invention provides a kind of exhibiting method of multimedia video time shaft, comprising:
Sound analysis is carried out to multimedia video, is divided into stationary video and the sport video of at least two time periods, and determine initial time and the end time of each time period;
Determine length on a timeline of each time period, the contraction in length wherein taken on a timeline by stationary video, the extension taken on a timeline by sport video;
In chronological order each time period is represented on a timeline according to determined length arrangement.
Wherein, by each time period according to determined length arrangement on a timeline time, calculate the initial time of each time period or end time corresponding on a timeline coordinate, and mark calculated coordinate and time point corresponding to each coordinate on a timeline.Determine that length on a timeline of each time period is the length utilizing stationary video and sport video, and the time scale ratio combining stationary video and the sport video preset is determined, wherein the time scale ratio of stationary video and sport video is greater than 1.
Below in conjunction with Fig. 1, the concrete methods of realizing of the present embodiment is described in detail:
S101, carry out sound analysis to multimedia, multimedia is become n time period with the different demarcation of sound state in chronological order, and n is positive integer; Determine initial time and the end time of the video of each section of static video and motion, the time at the whole story of i-th time period is respectively t
i-1and t
i, wherein t
0the sound state of=0, i-th time period is f
i, f during i-th time period image freeze that and if only if
i=0, otherwise f
i=1.
Such as: the multimedia file of 18 hours is become 3 time periods with the different demarcation of sound state in chronological order.Wherein, the time at the whole story of the 1st time period is respectively t
0and t
1, wherein t
0=0, t
1=14 hours; The time at the whole story of the 2nd time period is respectively t
1and t
2, wherein t
1=14 hours, t
2=15 hours; The time at the whole story of the 3rd time period is respectively t
2and t
3, wherein t
2=15 hours, t
3=18 hours.Then, the sound state of the 1st time period is quiet, f
1=0; The sound state of the 2nd time period is, f
2=1; The sound state of the 3rd time period is quiet, f
3=0.
S102, utilization determine the time scale of stationary video and sport video in advance than determining length on a timeline of each time period.I-th time period length is on a timeline l
i, then
wherein, with scale ratio on a timeline during image motion when s is image freeze, such as, unit length represents the rest image of 1 minute or the moving image of 1 second on a timeline, then s=60, l represent the overall length of time shaft.So, the 1st time period length l on a timeline
1for the 14/77,2nd the time period length l on a timeline of time shaft overall length
2for the 60/77,3rd the time period length l on a timeline of time shaft overall length
3for 3/77 of time shaft overall length.
In other embodiment of the present invention, suppose that one section of stationary video A length is 60 minutes, and sport video B length is 5 minutes, the time scale of stationary video and sport video is than being 60:1, so stationary video A length is on a timeline 1 minute, sport video B length is on a timeline 5 minutes, and these two sections of videos length is on a timeline than being 1:5.
S103, each time period is arranged on time shaft represents in chronological order.
The coordinate that S104, the initial time calculating each time period or end time are corresponding on a timeline, namely calculates t
1~ t
ithe coordinate of corresponding point on a timeline.Note t
icoordinate corresponding is on a timeline p
i, then
such as, be divided in the example of 3 time periods at the above-mentioned multimedia file by 18 hours, t
1horizontal ordinate corresponding is on a timeline 14/77, t of time shaft overall length
2horizontal ordinate corresponding is on a timeline 74/77, t of time shaft overall length
3horizontal ordinate corresponding is on a timeline time shaft overall length.
S105, mark calculated coordinate and time point corresponding to each coordinate on a timeline.Namely p is marked on a timeline
1~ p
n, and mark the time point of its correspondence.
Above-mentionedly can to find, the embodiment of the present invention at one time axle uses different time scales to the time period of multimedia picture still of a large time span and the time period of field motion, while and video based on still frame comparatively large for time span at one time axle can represent larger time span, there is higher time precision during time period timi requirement to field motion, solve the problem that on axle at one time, time span and time precision cannot be satisfied the demand simultaneously.
The embodiment of the present invention provides a kind of multimedia video playing method simultaneously, comprising:
Utilize the exhibiting method of the multimedia video time shaft in technique scheme to represent time shaft, and obtain the coordinate that user clicks on a timeline;
Calculate the time point representated by clicked coordinate, multimedia video is jumped to the time point calculated and start to play.
Wherein, the time point calculated representated by clicked coordinate is after obtaining the coordinate clicked on a timeline of user, first determine the time period belonging to clicked coordinate on a timeline, again according to the position of clicked coordinate in the time period, the length of binding time section, and initial time or end time realize.
Fig. 2 be service time axle carry out the method flow diagram of multimedia positioning action, concrete steps are as follows:
The coordinate that step S201, acquisition user click on a timeline, is designated as p.Such as, p is 1/2 of time shaft overall length.
Step S202, determine clicked coordinate p on a timeline belonging to time period, be designated as x, i.e. p
x-1≤ p≤p
x.Be divided in the example of 3 time periods at the above-mentioned multimedia file by 18 hours, can determine, the coordinate clicked is affiliated 2nd time period on a timeline.
Step S203, according to the position of clicked coordinate in the time period, the length of binding time section, and initial time or end time, by formula
calculate the time point of the coordinate p representative clicked.Be divided in the example of 3 time periods at the above-mentioned multimedia file by 18 hours, can determine, the time point of the coordinate clicked representative be 14 hours 24 points 30 seconds.
Multimedia is jumped to time point t by step S204, player.
The time shaft schematic diagram that in the embodiment of the present invention, multimedia video is play as shown in Figure 3, traditional non-uniform time axle is become uneven, run duration section is wherein elongated, rest time, section shortened, at one time axle uses different time scales to the time period of multimedia picture still of a large time span and the time period of field motion, solve the problem that on axle at one time, time span and time precision cannot be satisfied the demand simultaneously, while and video based on still frame comparatively large for time span at one time axle can represent larger time span, higher time precision is had during time period timi requirement to field motion.
As shown in Figure 4, the embodiment of the present invention also provides a kind of demonstration device of multimedia video time shaft, comprising:
Sound analysis module 10, for carrying out sound analysis to multimedia video, is divided into stationary video and the sport video of at least two time periods, and determines initial time and the end time of each time period;
Time shaft represents module 20, and for determining length on a timeline of each time period, the contraction in length wherein taken on a timeline by stationary video, the length taken on a timeline by sport video is elongated; And in chronological order each time period is represented on a timeline according to determined length arrangement.
Wherein, time shaft represent module 20 by each time period according to determined length arrangement on a timeline time, calculate the initial time of each time period or end time corresponding on a timeline coordinate, and mark calculated coordinate and time point corresponding to each coordinate on a timeline.Time shaft represents module 20 and determines that length on a timeline of each time period is the length utilizing stationary video and sport video, and the time scale ratio combining stationary video and the sport video preset is determined, wherein the time scale ratio of stationary video and sport video is greater than 1.
As shown in Figure 4, the embodiment of the present invention also provides a kind of multimedia video player, comprising:
The demonstration device of the multimedia time axle of technique scheme, for representing time shaft, and obtains the coordinate that user clicks on a timeline;
Decoding represents module 30, for calculating the time point representated by clicked coordinate, multimedia video being jumped to the time point calculated and starting to play.
Wherein, it is after obtaining the coordinate clicked on a timeline of user that decoding represents module 30 time point calculated representated by clicked coordinate, first determine the time period belonging to clicked coordinate on a timeline, again according to the position of clicked coordinate in the time period, the length of binding time section, and initial time or end time realize.
More specifically mutual see the description in method flow between above-mentioned module, repeats no more herein.
Above with reference to the accompanying drawings of the preferred embodiments of the present invention, those skilled in the art do not depart from the scope and spirit of the present invention, and multiple flexible program can be had to realize the present invention.For example, to illustrate as the part of an embodiment or the feature that describes can be used for another embodiment to obtain another embodiment.These are only the better feasible embodiment of the present invention, not thereby limit to interest field of the present invention that the equivalence change that all utilizations instructions of the present invention and accompanying drawing content are done all is contained within interest field of the present invention.
Claims (10)
1. an exhibiting method for multimedia video time shaft, is characterized in that, comprising:
Sound analysis is carried out to multimedia video, is divided into stationary video and the sport video of at least two time periods, and determine initial time and the end time of each time period;
Determine length on a timeline of each time period, the contraction in length wherein taken on a timeline by stationary video, the extension taken on a timeline by sport video;
In chronological order each time period is represented on a timeline according to determined length arrangement.
2. the exhibiting method of multimedia video time shaft according to claim 1, it is characterized in that, by each time period according to determined length arrangement on a timeline time, calculate the initial time of each time period or end time corresponding on a timeline coordinate, and mark calculated coordinate and time point corresponding to each coordinate on a timeline.
3. the exhibiting method of multimedia video time shaft according to claim 1 and 2, it is characterized in that, describedly determine that length on a timeline of each time period is the length utilizing stationary video and sport video, and the time scale ratio combining stationary video and the sport video preset is determined, the time scale ratio of wherein said stationary video and sport video is greater than 1; Described time scale than for during image freeze with scale ratio on a timeline during image motion.
4. a multimedia video playing method, is characterized in that, comprising:
Utilize the exhibiting method of the multimedia video time shaft according to any one of claim 1-3 to represent time shaft, and obtain the coordinate that user clicks on a timeline;
Calculate the time point representated by clicked coordinate, multimedia video is jumped to the time point calculated and start to play.
5. multimedia video playing method according to claim 4, it is characterized in that, the described time point calculated representated by clicked coordinate is after obtaining the coordinate clicked on a timeline of user, first determine the time period belonging to clicked coordinate on the time axis, again according to the position of clicked coordinate in the described time period, in conjunction with the length of described time period, and initial time or end time realize.
6. a demonstration device for multimedia video time shaft, is characterized in that, comprising:
Sound analysis module, for carrying out sound analysis to multimedia video, is divided into stationary video and the sport video of at least two time periods, and determines initial time and the end time of each time period;
Time shaft represents module, and for determining length on a timeline of each time period, the contraction in length wherein taken on a timeline by stationary video, the length taken on a timeline by sport video is elongated; And in chronological order each time period is represented on a timeline according to determined length arrangement.
7. the demonstration device of multimedia video time shaft according to claim 6, it is characterized in that, described time shaft represent module by each time period according to determined length arrangement on a timeline time, calculate the initial time of each time period or end time corresponding on a timeline coordinate, and mark calculated coordinate and time point corresponding to each coordinate on a timeline.
8. the demonstration device of multimedia video time shaft according to claim 6, it is characterized in that, described time shaft represents module and determines that length on a timeline of each time period is the length utilizing stationary video and sport video, and the time scale ratio combining stationary video and the sport video preset is determined, the time scale ratio of wherein said stationary video and sport video is greater than 1; Described time scale than for during image freeze with scale ratio on a timeline during image motion.
9. a multimedia video player, is characterized in that, comprising:
The demonstration device of the multimedia time axle described in any one of claim 6-8, for representing time shaft, and obtains the coordinate that user clicks on a timeline;
Decoding represents module, for calculating the time point representated by clicked coordinate, multimedia video being jumped to the time point calculated and starting to play.
10. multimedia video player according to claim 9, it is characterized in that, it is after obtaining the coordinate clicked on a timeline of user that described decoding represents the module time point calculated representated by clicked coordinate, first determine the time period belonging to clicked coordinate on the time axis, again according to the position of clicked coordinate in the described time period, in conjunction with the length of described time period, and initial time or end time realize.
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| CN201210325547.XA CN102867529B (en) | 2012-09-05 | 2012-09-05 | Multimedia video time shaft displaying method, device, playing method and player |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210325547.XA CN102867529B (en) | 2012-09-05 | 2012-09-05 | Multimedia video time shaft displaying method, device, playing method and player |
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| CN102867529A CN102867529A (en) | 2013-01-09 |
| CN102867529B true CN102867529B (en) | 2015-07-15 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104053066B (en) * | 2014-06-13 | 2017-08-08 | 无锡天脉聚源传媒科技有限公司 | The method and device that a kind of video is got ready |
| CN104270605B (en) * | 2014-09-23 | 2017-08-25 | 浪潮(北京)电子信息产业有限公司 | A kind of processing method and processing device of video monitoring data |
| CN110225310A (en) * | 2019-06-24 | 2019-09-10 | 浙江大华技术股份有限公司 | Computer readable storage medium, the display methods of video and device |
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