CN105142017B - Picture switching method and picture switching device during picture video playing - Google Patents

Picture switching method and picture switching device during picture video playing Download PDF

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Publication number
CN105142017B
CN105142017B CN201510493009.5A CN201510493009A CN105142017B CN 105142017 B CN105142017 B CN 105142017B CN 201510493009 A CN201510493009 A CN 201510493009A CN 105142017 B CN105142017 B CN 105142017B
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China
Prior art keywords
switching
playing
background music
picture
duration
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CN105142017A (en
Inventor
张莉
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Beijing Jupiter Technology Co ltd
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Beijing Kingsoft Internet Security Software Co Ltd
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Priority to CN201510493009.5A priority Critical patent/CN105142017B/en
Publication of CN105142017A publication Critical patent/CN105142017A/en
Priority to PCT/CN2016/094454 priority patent/WO2017025040A1/en
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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
    • H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
    • 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
    • H04N21/439—Processing of audio elementary streams
    • 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
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
    • 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
    • H04N21/81—Monomedia components thereof

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Graphics (AREA)
  • Studio Circuits (AREA)
  • Television Signal Processing For Recording (AREA)
  • Reverberation, Karaoke And Other Acoustics (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

The embodiment of the invention discloses a picture switching method and a picture switching device during picture video playing. Wherein, the method comprises the following steps: the method comprises the steps that a picture switching device obtains background music of a target picture video and a playing picture contained in the target picture video; determining the characteristic time contained in the background music according to the characteristic information of the background music; selecting N-1 characteristic moments from the characteristic moments contained in the background music as switching moments for switching playing pictures in the target picture video; and switching the playing pictures according to the determined switching time when the target picture video is played. According to the embodiment of the invention, the picture switching device can determine the switching time according to the characteristic moment of the background music, so that the correlation degree of the background music and the picture switching is enhanced, the picture switching mode is not single any more when the picture video is played, and the user experience is improved.

Description

Picture switching method and picture switching device when a kind of picture video plays
Technical field
The present invention relates to multimedia application technical fields, and in particular to picture switching method when a kind of picture video plays And picture switching device.
Background technique
With popularizing for mobile Internet, more and more users like recording the life of oneself by video, and divide Enjoy social platform.In order to meet this requirement of the user, a kind of picture video technology of simple magic lantern sheet mode meet the tendency of and It is raw.The plurality of pictures that local or cloud server save can be combined by user, to be combined into a short-sighted frequency.
Currently, the short-sighted frequency with background music can also be formed by way of adding music, so that picture is playing It is accompanied by background music in the process.But existing short-sighted frequency, during picture playing, the playing duration of every picture is basis Video total duration is distributed equally, and animation duration when switching between picture and picture is also mean allocation.It is this The picture duration method of salary distribution makes the degree of correlation of the picture in switching between background music lower, and picture switching mode is more single One.
Summary of the invention
The embodiment of the invention discloses the picture switching methods and picture switching device when a kind of broadcasting of picture video, can The switching mode of abundant picture video picture when playing improves phase of the picture in switching with background music in picture video Guan Du.
First aspect of the embodiment of the present invention discloses picture switching method when a kind of picture video plays, comprising:
The background music of Target Photo video is obtained, and obtains the playing pictures that the Target Photo video includes；
The characteristic time that the background music includes is determined according to the characteristic information of the background music；
From N-1 characteristic time is chosen in the characteristic time that the background music includes as in the Target Photo video Switch the switching moment of the playing pictures, N is the integer more than or equal to 2, and N indicates the quantity of the playing pictures；
The switching of the playing pictures is carried out according to the switching moment when playing the Target Photo video.
Optionally, described that N-1 characteristic time is chosen from the characteristic time that the background music includes as the mesh Switch the switching moment of the playing pictures in mark picture video, comprising:
The broadcasting total duration T of the Target Photo video is obtained, and determines the object time collection played in total duration Close T', T'={ t'k|t'k=(T/N) * k, 1≤k≤N-1 }, wherein k is integer, t'kIt indicates in the object time set T' Including object time；
It is chosen and the object time t' from the characteristic time that the background music includeskNearest characteristic time conduct The switching moment t of kth Zhang Suoshu playing picturesk。
Optionally, the characteristic information according to the background music determines the characteristic time that the background music includes, Include:
Parse the rhythm point that the background music includes；
It is determined as the characteristic time of the background music at the time of each rhythm point is corresponded to.
Optionally, the method also includes:
According to the switching moment of playing pictures described in every, determine that the playing pictures switch between next playing pictures Switch the playing duration s of animationk；
The switching for carrying out the playing pictures according to the switching moment when playing the Target Photo video, packet It includes:
Kth Zhang Suoshu playing pictures are controlled in the switching moment t of kth Zhang Suoshu playing pictureskIt is dynamic to switch to the switching It draws, and controls the switching animation in tk+skMoment switches to kth+1 playing pictures.
Optionally, the switching moment according to playing pictures described in every determines that the playing pictures switch to next broadcast Put the playing duration s of the switching animation between picturek, comprising:
The rhythm point that the background music includes is ranked up according to the broadcasting timing of the background music, is obtained each The arrangement serial number of the rhythm point；
Determine the switching moment tkArrangement serial number a of the corresponding rhythm point in the rhythm pointk；
Obtain akThe corresponding characteristic time of+m rhythm points, and calculate ak+ m rhythm points and akA rhythm Point between target duration, wherein m be switching animation the included rhythm point of playing duration amount threshold；
From the default playing duration threshold value t of switching animationmaxIt is opened with minimum duration is chosen in the target duration as kth The playing pictures switch to the playing duration s of the switching animation between kth+1 playing picturesk。
Correspondingly, second aspect of the embodiment of the present invention discloses a kind of picture switching device, comprising:
Acquiring unit for obtaining the background music of Target Photo video, and obtains the Target Photo video and includes Playing pictures；
First determination unit, described in the characteristic information of the background music for being obtained according to the acquiring unit determines The characteristic time that background music includes；
Selection unit, for being chosen from the characteristic time that the background music includes described in N-1 characteristic time conduct Switch the switching moment of the playing pictures in Target Photo video, N is the integer more than or equal to 2, and N indicates the broadcasting figure The quantity of piece；
Switch unit, when for when playing the Target Photo video according to the switching of selection unit selection Carve the switching for carrying out the playing pictures.
Optionally, the selection unit includes that the first acquisition subelement and first choose subelement, in which:
Described first obtains subelement, broadcasts for obtaining the broadcasting total duration T of the Target Photo video, and described in determination Put object time set T', the T'={ t' in total durationk|t'k=(T/N) * k, 1≤k≤N-1 }, wherein k is integer, t'kTable Show the object time for including in the object time set T'；
Described first chooses subelement, when for choosing from the characteristic time that the background music includes with the target Carve t'kSwitching moment t of the nearest characteristic time as kth Zhang Suoshu playing picturesk。
Optionally, first determination unit includes that parsing subunit and first determine subelement, in which:
The parsing subunit, the rhythm point for including for parsing the background music；
Described first determines subelement, is determined as the background music at the time of for corresponding to each rhythm point Characteristic time.
Optionally, described device further include:
Second determination unit determines that the playing pictures switch to for the switching moment according to playing pictures described in every The playing duration s of switching animation between next playing picturesk；
The switch unit when playing the Target Photo video according to the selection unit choose the switching when Carve the concrete mode for carrying out the switching of the playing pictures are as follows:
Kth Zhang Suoshu playing pictures are controlled in the switching moment t of kth Zhang Suoshu playing pictureskIt is dynamic to switch to the switching It draws, and controls the switching animation in tk+skMoment switches to kth+1 playing pictures.
Optionally, second determination unit include sorting subunit, second determine subelement, second obtain subelement with And second choose subelement, in which:
The sequencing unit, rhythm point for including by the background music according to the background music broadcasting timing It is ranked up, obtains the arrangement serial number of each rhythm point；
Described second determines subelement, for determining the switching moment tkCorresponding rhythm point is in the rhythm point Arrange serial number ak；
Described second obtains subelement, for obtaining akThe corresponding characteristic time of+m rhythm points, and calculate ak + m rhythm points and akTarget duration between a rhythm point, wherein m is included rhythm point by the playing duration for switching animation Amount threshold；
Described second chooses subelement, for the default playing duration threshold value t from switching animationmaxWith the target duration The middle minimum duration of selection switches to the switching animation between kth+1 playing pictures as kth Zhang Suoshu playing pictures Playing duration sk。
The implementation of the embodiments of the present invention has the following beneficial effects:
In the embodiment of the present invention, the background music of the available Target Photo video of picture switching device, and obtain the mesh The playing pictures that piece video of marking on a map includes；And when determining the feature that the background music includes according to the characteristic information of the background music It carves；It is played from N-1 characteristic time is chosen in the characteristic time that the background music includes as switching in the Target Photo video The switching moment of picture, N is the integer more than or equal to 2, and N is the playing pictures number that the Target Photo video includes；And it is broadcasting The switching of picture is played out when putting the Target Photo video according to determining switching moment.Through the embodiment of the present invention, picture Switching device can determine its switching time according to the characteristic time of background music, strengthen background music and picture switching The degree of correlation, so that picture video, when playing out, picture switching mode is no longer single, to promote user experience.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other Attached drawing.
Fig. 1 is the flow diagram of picture switching method when a kind of picture video disclosed by the embodiments of the present invention plays；
Fig. 2 is the process signal of picture switching method when another picture video disclosed by the embodiments of the present invention plays Figure；
Fig. 3 is the process signal of picture switching method when another picture video disclosed by the embodiments of the present invention plays Figure；
Fig. 4 is a kind of structural schematic diagram of picture switching device disclosed by the embodiments of the present invention；
Fig. 5 is the structural schematic diagram of another picture switching device disclosed by the embodiments of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
The embodiment of the invention discloses the picture switching methods and picture switching device when a kind of broadcasting of picture video, can The switching mode of picture when abundant picture video plays, the picture improved in picture video are related to background music in switching Degree.It is described in detail separately below.
Referring to Fig. 1, Fig. 1 is the stream of picture switching method when a kind of picture video disclosed by the embodiments of the present invention plays Journey schematic diagram.Wherein, method shown in Fig. 1 can be applied to smart phone (such as Android phone, iOS mobile phone), plate electricity Brain, palm PC and mobile internet device (Mobile Internet Devices, MID), personal digital assistant (Personal Digital Assistant, PDA), media player, smart television, smartwatch, intelligent glasses, intelligent hand The terminals such as ring.As shown in Figure 1, the picture switching method when picture video plays may comprise steps of:
S101, picture switching device obtain the background music of Target Photo video, and obtain the Target Photo video and include Playing pictures.
In the embodiment of the present invention, when production has the picture video of background music, picture switching device is firstly the need of true The background music of Target Photo video and all playing pictures of composition Target Photo video are made in customization, then control again all Playing pictures played according to certain playing sequence and specific playing interval, to realize broadcasting for Target Photo video It puts.
Therefore, which can obtain the background music of Target Photo video first, and obtains and form the target All playing pictures of picture video.Wherein, which can be the system default sound that picture switching device is locally stored It is happy, it is also possible to the snatch of music that user intercepts from certain a piece of music as needed, the embodiment of the present invention is without limitation. The playing pictures that the Target Photo video includes can be the system default picture of the picture switching device, be also possible to user from The photo chosen in local data base can also be that user passes through the photo that camera is shot immediately, and the embodiment of the present invention is not made It limits.
Wherein, the duration of the background music is less than or equal to the playing duration of the Target Photo video, the Target Photo video The quantity for the playing pictures for including is N, and wherein N is the integer more than or equal to 2.
As an alternative embodiment, the picture switching device can obtain the background of the Target Photo video simultaneously Music and it includes playing pictures, can also be and background music and determine to obtain the mesh again after characteristic time obtaining The playing pictures for marking picture video, can also be the broadcasting figure of the Target Photo video obtained before obtaining background music Piece, the embodiment of the present invention is without limitation.
When S102, the picture switching device determine the feature that the background music includes according to the characteristic information of the background music It carves.
In the embodiment of the present invention, after the background music for getting the Target Photo video, the picture switching device meeting The characteristic information of the background music is analyzed, so that it is determined that going out the characteristic time of the background music.Wherein, background music packet The quantity of the characteristic time contained is more than or equal to the quantity for the playing pictures that the Target Photo video includes.
It should be noted that the characteristic information of the background music can be the decibel for including in music, frequency, tone, section It plays, the embodiment of the present invention is without limitation.Therefore, which determines according to the characteristic information of the background music At the time of characteristic time can be decibel value in default decibel section；At the time of being also possible to each rhythm point and correspond to；Also At the time of frequency be can be in predeterminated frequency section etc..
S103, the picture switching device are chosen (N-1) a characteristic time from the characteristic time that the background music includes and are made For the switching moment for switching the playing pictures in the Target Photo video.
In the embodiment of the present invention, in order to which multiple playing pictures are fabricated to picture video, need by every playing pictures by It is arranged according to specific playing sequence, then resets the play time of every playing pictures, that is, currently playing picture playing At the time of next playing pictures will be switched to after specified duration.Therefore, switch the playing pictures in Target Photo video Switching moment it is to be understood that at the time of adjacent two playing pictures of triggering switch over.
Specifically, when the picture switching device according to the characteristic information of the background music select multiple characteristic times it Afterwards, which will choose the characteristic time of 1 quantity fewer than playing pictures quantity from these characteristic times.? That is the picture switching device will be from the background music if the Target Photo video bag contains N playing pictures In the characteristic time for including, (N-1) a characteristic time is selected as switching cutting for the playing pictures in the Target Photo video Change the moment.
Further, after determining switching moment, which can be according to a playing pictures pair The rule for answering a switching moment, by playing pictures in conjunction with background music, to be fabricated to the target figure including background music Piece video.
It should be noted that every playing pictures all correspond to a switching moment, then currently playing picture is corresponding After switching moment cuts out (disappearance), it can be incision (display) next playing pictures at once, be also possible to slowly cutting out While currently playing picture, next playing pictures are slowly cut, switching animation, this hair can be set in handoff procedure Bright embodiment is without limitation.
That is, in order to increase interest of the Target Photo video when playing, which may be used also Certain switching animation (also referred to as transition effect or effect steering effect) is arranged, then in currently playing picture playing to cutting It can be cut out according to preset switching animation when changing the moment, then next playing pictures can also be cut according to preset switching animation Enter.
S104, the picture switching device carry out the playing pictures according to switching moment when playing the Target Photo video Switching.
In the embodiment of the present invention, after the switching moment for selecting Target Photo video switching playing pictures, the figure Piece switching device can be fabricated to Target Photo according to the switching moment of selection according to the background music and playing pictures and regard Frequently.Therefore, for the picture switching device when playing the Target Photo video, each playing pictures are in its corresponding switching moment Next playing pictures will be switched to.
It, can also be with it should be noted that the duration of Target Photo video of production can be consistent with the duration of background music It is default duration of the picture switching device when generating picture video, can also be that duration set by user, the present invention are implemented Example is without limitation.
As an example it is assumed that the Target Photo video bag contains 6 playing pictures, and the characteristic time in background music divides It Wei not the 2nd second, the 7th second, the 13rd second, the 20th second, the 28th second, the 33rd second, the 37th second, the 42nd second, the 44th second, the 52nd second, the 56th Second, the 63rd second, the 67th second, the 71st second, the 78th second, then the picture switching device can according to the quantity of playing pictures, from 5 switching moments, such as the 13rd second, the 28th second, the 42nd second, the 56th second, the 71st second are chosen in characteristic time.Therefore, it broadcasts for first Putting picture will cut out when playing to 13 seconds, and second playing pictures was also cut at 13 seconds simultaneously, when playing to 28 seconds, Second picture will be cut out, and so on.
As it can be seen that in the method depicted in fig. 1, the spy which passes through the background music of Target Photo video Reference ceases the characteristic time for determining that the background music includes, and selection (N-1) is a from the characteristic time that the background music includes Characteristic time is as the switching moment for switching playing pictures in the Target Photo video, then when playing the Target Photo video The switching of picture is played out according to determining switching moment.Through the embodiment of the present invention, picture switching device can be according to back The characteristic time of scape music determines its switching time, so that picture switching when picture video plays can be with background music depth Degree combines, and enhances the degree of correlation of background music and picture switching, and picture video is when playing out, picture switching mode It is no longer single, to promote user experience.
Referring to Fig. 2, Fig. 2 is picture switching method when another picture video disclosed by the embodiments of the present invention plays Flow diagram.Wherein, method shown in Fig. 2 can be applied to smart phone (such as Android phone, iOS mobile phone), plate electricity Brain, palm PC and mobile internet device, personal digital assistant, media player, smart television, smartwatch, intelligence The terminals such as glasses, Intelligent bracelet.As shown in Fig. 2, the picture switching method when picture video plays may comprise steps of:
S201, picture switching device obtain the background music of Target Photo video, and obtain the Target Photo video and include Playing pictures.
When S202, the picture switching device determine the feature that the background music includes according to the characteristic information of the background music It carves.
In the embodiment of the present invention, which determines the background music packet according to the characteristic information of the background music The concrete mode of the characteristic time contained may comprise steps of:
Step 11) parses the rhythm point that the background music includes；
Step 12) is determined as the characteristic time of the background music at the time of corresponding to each rhythm point.
In the specific implementation, the picture switching device can parse after the background music for getting Target Photo video At the time of all rhythm points and each rhythm point that the background music includes correspond to, at the time of then each rhythm point is corresponded to It is determined as the characteristic time of the background music.That is, the characteristic time that the background music includes is each of which rhythm point At the time of corresponding.
S203, the picture switching device obtain the broadcasting total duration T of the Target Photo video, and determine the broadcasting total duration In object time set T'.
In the embodiment of the present invention, the broadcasting total duration T of the Target Photo video can be system default duration, be also possible to Duration set by user can also be the total duration of the background music, and the embodiment of the present invention is without limitation.Therefore, when the picture When the broadcasting total duration of switching device acquisition Target Photo video is T, when will determine multiple targets from broadcasting total duration It carves, each object time t'kIt indicates, t'k=(T/N) * k, wherein 1≤k≤N-1, and k is integer, N is Target Photo video The quantity for the playing pictures for including.That is, the picture switching device, which can will play total duration T, is divided into N parts, every part of table Show an object time, shares (N-1) a object time, and this (N-1) a object time is in object time set T' Element.That is, the first aim moment is T/N in object time set T', the second target moment is (T/N) * 2, Third object time is (T/N) * 3, and (N-1) a namely the last one object time is (T/N) * (N-1).
As an example it is assumed that the Target Photo video includes 8 playing pictures, and when the broadcasting of the Target Photo video is total A length of 24 seconds, then the picture switching device will will play total duration in determine object time set T'=[3,6,9,12, 15,18,21]。
It should be noted that the picture switching device determines object time from the broadcasting total duration of Target Photo video Set, can be and execute before the characteristic time for determining background music, be also possible in the characteristic time for determining background music It executes later, can also be and be performed simultaneously with the characteristic time of background music is determined, the embodiment of the present invention is without limitation.Wherein, The quantity of object time of the quantity for the characteristic time that background music includes than including in object time set T' is more.
S204, the picture switching device are chosen and object time t' from the characteristic time that the background music includeskMost Switching moment t of the close characteristic time as kth playing picturesk。
In the embodiment of the present invention, determine characteristic time that object time set T' and the background music include it Afterwards, the picture switching device can from these characteristic times respectively choose with the immediate characteristic time of each object time, To obtain switching moment of (N-1) a characteristic time as the playing pictures from first playing pictures to (N-1).Also It is to say, the picture switching device is in the switching moment t for choosing kth playing pictureskWhen, it is include multiple from the background music Characteristic time is from selecting away from object time t'kNearest characteristic time.
Further, switching moment t is being determinedkLater, which can be according to a playing pictures The Target Photo video that the rule production of a corresponding switching moment is made of background music and N playing pictures.
As an example it is assumed that the broadcasting total duration of the Target Photo video is 24 seconds, the total duration of background music is also 24 Second, wherein the collection of all characteristic times that the background music includes composition be combined into [2,3,5,8,11,12,14,17,18,20, 21,23,24], and the picture switching device from play the object time collection determined in total duration 24 seconds be combined into T'=[3,6,9, 12,15,18,21].Therefore, which will choose and the immediate spy of object time respectively from characteristic time The switching moment of each playing pictures when levying moment [3,5,8,12,14,18,21] as Target Photo video playing.
S205, the picture switching device are when playing the Target Photo video according to switching moment tkKth is carried out to play The switching of picture.
In the embodiment of the present invention, in the switching moment t for selecting kth playing pictures respectively from characteristic timekLater, The switching moment of first playing pictures of Target Photo video is just t1, the switching moment of second playing pictures is just t2, and The switching moment of (N-1) playing pictures is just tN-1.That is, the picture switching device is playing Target Photo video When, when first playing pictures is played to t1tkIt will be cut out when the moment, and second playing pictures incision, it is played when second Picture playing is to t2Can also be cut out when the moment, thus third playing pictures incision, until (N-1) playing pictures play to tN-1N playing pictures are switched to when the moment.
As it can be seen that in the method depicted in fig. 2, the broadcasting total duration of Target Photo video can be averaged by picture switching device It is divided into N parts, then (N-1) a object time before therefrom choosing is chosen and each mesh respectively from the characteristic time determined Moment immediate characteristic time is marked, as switching moment of the Target Photo video when playing out picture switching.In this way Both can guarantee that the playing duration of each playing pictures was close, be not in part playing pictures play time it is too short, and part The too long situation of the play time of playing pictures, and every playing pictures can be allowed to switch according to the rhythm of background music, thus In conjunction with background music depth, improve playing pictures switching when and background music the degree of correlation, enrich picture video broadcasting When playing pictures switching mode.
Referring to Fig. 3, Fig. 3 is picture switching method when another picture video disclosed by the embodiments of the present invention plays Flow diagram.Wherein, method shown in Fig. 3 can be applied to smart phone (such as Android phone, iOS mobile phone), plate electricity Brain, palm PC and mobile internet device, personal digital assistant, media player, smart television, smartwatch, intelligence The terminals such as glasses, Intelligent bracelet.As shown in figure 3, the picture switching method when picture video plays may comprise steps of:
S301, picture switching device obtain the background music of Target Photo video, and obtain the Target Photo video and include Playing pictures.
When S302, the picture switching device determine the feature that the background music includes according to the characteristic information of the background music It carves.
S303, the picture switching device obtain the broadcasting total duration T of the Target Photo video, and determine the broadcasting total duration In object time set T'.
S304, the picture switching device are chosen and object time t' from the characteristic time that the background music includeskMost Switching moment t of the close characteristic time as kth playing picturesk。
S305, the picture switching device determine that the playing pictures switch to down according to the switching moment of every playing pictures The playing duration s of switching animation between one playing picturesk。
In the embodiment of the present invention, between adjacent two playing pictures, switching animation can be set, cut in currently playing picture When out, switching animation is first played, then cuts next playing pictures again.Therefore, determining that every playing pictures are corresponding After switching moment, which can determine whether the switching animation between every playing pictures and next playing pictures Playing duration sk。
Specifically, switching moment of the picture switching device according to every playing pictures, determines that the playing pictures switch to The playing duration s of switching animation between next playing pictureskConcrete mode may comprise steps of:
The rhythm point that the background music includes is ranked up by step 21) according to the broadcasting timing of the background music, is obtained The arrangement serial number of each rhythm point.
In the specific implementation, the picture switching device can include to the background music according to the broadcasting timing of the background music Rhythm point be ranked up, to obtain the arrangement serial number of each rhythm point, such as first rhythm point, second rhythm point, y A rhythm point, its corresponding arrangement serial number of m-th rhythm point is respectively 1,2, y, M.
Step 22) determines switching moment tkArrangement serial number a of the corresponding rhythm point in the rhythm pointk。
In the specific implementation, due to switching moment tkAnd the corresponding characteristic time of rhythm point that background music includes, therefore, The picture switching device is after the arrangement serial number for determining each rhythm point, so that it may determine that each switching moment is corresponding The arrangement serial number of rhythm point, so that it is determined that switching moment t outkThe arrangement serial number of corresponding rhythm point, is denoted as ak.That is, cutting Change moment t1The arrangement serial number a of corresponding rhythm point1It indicates, switching moment t2The arrangement serial number a of corresponding rhythm point2Table Show, switching moment tN-1The arrangement serial number a of corresponding rhythm pointN-1It indicates.
For example, the switching moment that picture switching device is determined is respectively [4,7,11,16,21,24], and first is cut Changing arrangement serial number of the moment corresponding rhythm point in all rhythm points that background music includes may be 10, and second switching Arrangement serial number of the moment corresponding rhythm point in all rhythm points that background music includes may be 21.As k=2, then Switching moment t2The arrangement serial number of corresponding rhythm point is just a2=21.
Step 23) obtains (ak+ m) the corresponding characteristic time of a rhythm point, and calculate (ak+ m) a rhythm point and ak Target duration between a rhythm point.
In the specific implementation, m is the maximum rhythm point amount threshold for including, rhythm points in the playing duration for switch animation Amount threshold value can be set by user, be also possible to the picture switching device system default, the embodiment of the present invention is without limitation. Therefore, when determining the arrangement serial number of corresponding rhythm point of each switching moment, which will be according to every Playing pictures corresponding switching moment determines the playing duration of the corresponding switching animation of the playing pictures.That is, for Kth playing pictures, the picture switching device are determining that its corresponding switching moment is tkWhen, so that it may when determining the switching Carve tkThe arrangement serial number a of corresponding rhythm pointk.Therefore, which will be with akA rhythm point is starting point, from (a is searched in the background musick+ m) the corresponding characteristic time of a rhythm point, then calculate (ak+ m) a rhythm point is corresponding Characteristic time and switching moment are tkBetween time difference, the as target duration between the two rhythm points.
It should be noted that in same first background music, it is understood that there may be when interval between the rhythm point of various pieces Between inconsistent situation, then the switching animation between adjacent two playing pictures passes through (ak+ m) a rhythm point feature when It carves and akThe characteristic time of a rhythm point may also be also different come the target duration determined.If only by obtaining any phase The mode at the interval moment between adjacent two rhythm points determines that the playing duration of switching animation, possibility will have certain broadcastings Picture may be mismatched in incision with the rhythm point of background music.Therefore, a is calculated in this waykA rhythm point With (ak+ m) the target duration between a rhythm point is more accurate.Certainly, if the picture switching device determines the background Interval time between two rhythm points of arbitrary neighborhood of music is identical, when can also first obtain the interval between adjacent rhythm point Between, interval time is multiplied with m then and can be obtained by the playing duration of each switching animation, arbitrary neighborhood two obtained from The playing duration for opening the switching animation between playing pictures is identical.
As an example it is assumed that 5 seconds switching moments for first playing pictures, the switching for second playing pictures in 12 seconds Moment, 18 seconds switching moments for third playing pictures, the playing duration of the switching animation of setting include up to 5 rhythm Point, the characteristic time of the 5th rhythm point after first switching moment corresponding rhythm point are 7 seconds, second switching moment The characteristic time of the 5th rhythm point after corresponding rhythm point is 13 seconds, after third switching moment corresponding rhythm point The 5th rhythm point characteristic time be 19.2 seconds, therefore, obtained target duration is respectively 2 seconds, 1 second, 1.2 seconds.
Default playing duration threshold value t of the step 24) from switching animationmaxWith the minimum duration conduct of selection in the target duration Kth playing pictures switch to the playing duration s of the switching animation between (k+1) playing picturesk。
In the specific implementation, tmaxFor picture switching device or it is set by user it is each switching animation maximum playing duration, i.e., Default playing duration threshold value.Therefore, (a is being obtainedk+ m) the corresponding characteristic time of a rhythm point, and calculate (ak+ m) it is a Rhythm point and akAfter target duration between a rhythm point, which can be directed to every playing pictures, from meter The target duration of the switching animation of calculating and default playing duration threshold value tmaxBetween choose the smallest duration as the playing pictures The playing duration s of corresponding switching animationk.That is, when determining the broadcasting of the corresponding switching animation of kth playing pictures When long, which can calculate its switching moment t firstkCorresponding akA rhythm point and (ak+ m) a rhythm point Between target duration, minimum duration is then chosen from target duration and the default playing duration threshold value of switching animation as the The playing duration s of the corresponding switching animation of k playing picturesk。
It for example, should if Target Photo video does not set switching animation when playing out picture switching Picture switching device is after the characteristic time according to background music determines every playing pictures corresponding switching moment, the mesh Mark the play time of every playing pictures in picture video are as follows: 0~3 second play time for first playing pictures, the 3rd~7 Second is the play time of second playing pictures, and 7~12 seconds play times for third playing pictures.
Again for example, it if Target Photo video is set with switching animation when playing out picture switching, and sets The playing duration of switching animation include up to 4 rhythm points, the default playing duration for switching animation is 1.5 seconds.So basis The switching moment of available first playing pictures of the play time of above-mentioned playing pictures is 3 seconds, second playing pictures Switching moment is 7 seconds.If the 4th rhythm point after the switching moment of first playing pictures corresponding rhythm point is corresponding Characteristic time be 4 seconds, the 4th rhythm point after the switching moment of second playing pictures corresponding rhythm point is corresponding Characteristic time is 8.9 seconds, then a length of 1 second when can be obtained by first aim, when second target is 1.9 seconds a length of, and is cut The default playing duration of picture of moving is to compare for 1.5 seconds, which is assured that out that first playing pictures is corresponding Switching animation playing duration be 1 second, and second playing pictures it is corresponding switching animation playing duration be 1.5 seconds.
S306, picture switching device control kth playing pictures open the switching moment t of playing pictures in kthkIt switches to Switch animation, and controls the switching animation in (tk+sk) moment switches to (k+1) playing pictures.
In the embodiment of the present invention, in the playing duration s for determining the corresponding switching animation of every playing pictures respectivelykIt Afterwards, which can control kth playing pictures in tkMoment cuts out, and cuts switching animation in synchronization, And in switching animation play skIt, will be in (t when durationk+sk) moment cuts out, so that (k+1) playing pictures are in same a period of time Carve incision.
For example, the switching moment of first playing pictures is 3 seconds, and the playing time of corresponding switching animation is 1.2 the second, the switching moment of second playing pictures is 7 seconds, and the playing time of corresponding switching animation is 0.9 second, then When playing the Target Photo video, first playing pictures is switched to the switching animation of setting when playing to 3 seconds, and switching animation is broadcast It is switched to second playing pictures when putting to 4.2 seconds, correspondingly, being switched to setting when second playing pictures was played to 7 seconds Switching animation, and third playing pictures are switched to when the switching animation play was to 7.9 seconds.
As it can be seen that in the method depicted in fig. 3, which can set every playing pictures in handoff procedure The switching animation of setting is played, to increase picture video in the interest for playing out picture switching.Further, switching is dynamic The playing duration of picture was determined according to the switching moment of every playing pictures and the corresponding characteristic time of each rhythm point , in this way can to avoid each playing pictures play time due to background music each section rhythm point interval time and phase Difference is farther out, that is to say, that the play time that every playing pictures can be adjusted by adjusting the playing duration of switching animation, from And picture video is enhanced when carrying out picture switching and the degree of correlation of background music.
Referring to Fig. 4, Fig. 4 is a kind of structural schematic diagram of picture switching device disclosed by the embodiments of the present invention.Wherein, scheme Picture switching device 400 shown in 4 can be applied to smart phone (such as Android phone, iOS mobile phone), tablet computer, the palm Upper computer and mobile internet device, personal digital assistant, media player, smart television, smartwatch, intelligent glasses, The terminals such as Intelligent bracelet.As shown in figure 4, the picture switching device 400 may include with lower unit:
Acquiring unit 401 for obtaining the background music of Target Photo video, and obtains the Target Photo video and includes Playing pictures.
In the embodiment of the present invention, production have background music picture video when, picture switching device 400 firstly the need of It determines the background music of production Target Photo video and all playing pictures of composition Target Photo video, then controls institute again Some playing pictures are played according to certain playing sequence and specific playing interval, to realize broadcasting for Target Photo video It puts.
Therefore, acquiring unit 401 can obtain the background music of Target Photo video first, and obtain and form the Target Photo All playing pictures of video.Wherein, which can be the system default music that picture switching device is locally stored, It can be the snatch of music that user intercepts from certain a piece of music as needed, the embodiment of the present invention is without limitation.The mesh The playing pictures that piece video includes of marking on a map can be the system default picture of the picture switching device 400, be also possible to user from The photo chosen in local data base can also be that user passes through the photo that camera is shot immediately, and the embodiment of the present invention is not made It limits.
Wherein, the duration of the background music is less than or equal to the playing duration of the Target Photo video, the Target Photo video The quantity for the playing pictures for including is N, and wherein N is the integer more than or equal to 2.
As an alternative embodiment, acquiring unit 401 can obtain the background sound of the Target Photo video simultaneously It is happy and it includes playing pictures, can also be and obtaining background music and determining to obtain the target again after characteristic time The playing pictures of picture video can also be the playing pictures of the Target Photo video obtained before obtaining background music, The embodiment of the present invention is without limitation.
First determination unit 402 determines the feature that the background music includes for the characteristic information according to the background music Moment.
In the embodiment of the present invention, after the background music that acquiring unit 401 gets the Target Photo video, first really Order member 402 can analyze the characteristic information of the background music, so that it is determined that going out the characteristic time of the background music.Its In, the quantity for the characteristic time that background music includes is more than or equal to the quantity for the playing pictures that the Target Photo video includes.
It should be noted that the characteristic information of the background music can be the decibel for including in music, frequency, tone, section It plays, the embodiment of the present invention is without limitation.Therefore, the first determination unit 402 is determined according to the characteristic information of the background music Characteristic time at the time of can be decibel value and be located in default decibel section；At the time of being also possible to each rhythm point and correspond to； Can also be at the time of frequency is in predeterminated frequency section etc..
Selection unit 403, should for choosing (N-1) a characteristic time conduct from the characteristic time that the background music includes Switch the switching moment of the playing pictures in Target Photo video.
In the embodiment of the present invention, in order to which multiple playing pictures are fabricated to picture video, need by every playing pictures by It is arranged according to specific playing sequence, then resets the play time of every playing pictures, that is, currently playing picture playing At the time of next playing pictures will be switched to after specified duration.Therefore, switch the playing pictures in Target Photo video Switching moment it is to be understood that at the time of adjacent two playing pictures of triggering switch over.
Specifically, when the first determination unit 402 according to the characteristic information of the background music select multiple characteristic times it Afterwards, selection unit 403 will choose the characteristic time of 1 quantity fewer than playing pictures quantity from these characteristic times.Also It is to say, if the Target Photo video bag contains N playing pictures, selection unit 403 will include from the background music Characteristic time in, when selecting (N-1) a characteristic time as the switching of the playing pictures is switched in the Target Photo video It carves.
Further, after selection unit 403 determines switching moment, which can be according to The rule of one playing pictures corresponding switching moment, by playing pictures in conjunction with background music, to be fabricated to including back The Target Photo video of scape music.
It should be noted that every playing pictures all correspond to a switching moment, then currently playing picture is corresponding After switching moment cuts out (disappearance), it can be incision (display) next playing pictures at once, be also possible to slowly cutting out While currently playing picture, next playing pictures are slowly cut, switching animation, this hair can be set in handoff procedure Bright embodiment is without limitation.
That is, the picture switching device 400 is also in order to increase interest of the Target Photo video when playing Certain switching animation (also referred to as transition effect or effect steering effect) can be set, then currently playing picture playing extremely It can be cut out according to preset switching animation when switching moment, then next playing pictures also can be according to preset switching animation Incision.
Switch unit 404, when for when playing the Target Photo video according to the switching of above-mentioned selection unit 403 selection Carve the switching for carrying out the playing pictures.
In the embodiment of the present invention, when selection unit 403 selects the switching of Target Photo video switching playing pictures After quarter, which can be according to the background music and playing pictures according to the switching moment system of selection It is made Target Photo video.Therefore, for switch unit 404 when playing the Target Photo video, each playing pictures are right at its The switching moment answered will switch to next playing pictures.
It, can also be with it should be noted that the duration of Target Photo video of production can be consistent with the duration of background music It is default duration of the picture switching device 400 when generating picture video, can also be that duration set by user, the present invention are real Apply example without limitation.
As an example it is assumed that the Target Photo video bag contains 6 playing pictures, and the characteristic time in background music divides It Wei not the 2nd second, the 7th second, the 13rd second, the 20th second, the 28th second, the 33rd second, the 37th second, the 42nd second, the 44th second, the 52nd second, the 56th Second, the 63rd second, the 67th second, the 71st second, the 78th second, then selection unit 403 can be according to the quantity of playing pictures, from feature 5 switching moments, such as the 13rd second, the 28th second, the 42nd second, the 56th second, the 71st second are chosen in moment.Therefore, switch unit 404 is just First playing pictures can be controlled respectively to be cut out when playing to 13 seconds, and second playing pictures was also cut at 13 seconds simultaneously Enter, when playing to 28 seconds, the second picture will be cut out, and so on.
As it can be seen that the picture switching device passes through the background of Target Photo video in the picture switching device described in Fig. 4 The characteristic information of music determines the characteristic time that the background music includes, and chooses from the characteristic time that the background music includes (N-1) then a characteristic time is playing the target figure as the switching moment for switching playing pictures in the Target Photo video The switching of picture is played out when piece video according to determining switching moment.Through the embodiment of the present invention, picture switching device can To determine its switching time according to the characteristic time of background music, so that picture switching when picture video plays can be with back Scape music depth combines, and enhances the degree of correlation of background music and picture switching, and picture video is when playing out, and picture is cut It is also no longer single to change mode, to promote user experience.
Referring to Fig. 5, Fig. 5 is the structural schematic diagram of another picture switching device disclosed by the embodiments of the present invention.Wherein, Picture switching device 400 shown in fig. 5 is to optimize on the basis of picture switching device 400 shown in Fig. 4 to obtain.Such as Fig. 5 Shown, which may include:
Second determines that subelement 405 determines that the playing pictures switch to for the switching moment according to every playing pictures The playing duration s of switching animation between next playing picturesk。
In the embodiment of the present invention, between adjacent two playing pictures, switching animation can be set, cut in currently playing picture When out, switching animation is first played, then cuts next playing pictures again.Therefore, every broadcasting is determined in selection unit 403 After picture corresponding switching moment, second determine subelement 405 can determine whether every playing pictures and next playing pictures it Between switching animation playing duration sk。
In the embodiment of the present invention, above-mentioned first determination unit 402 may include that parsing subunit 4021 and first determine Subelement 4022, in which:
Parsing subunit 4021, the rhythm point for including for parsing the background music.
First determines subelement 4022, when being determined as the feature of the background music at the time of for corresponding to each rhythm point It carves.
In the specific implementation, after the background music that acquiring unit 401 gets Target Photo video, parsing subunit 4021 can parse all rhythm points that the background music includes and at the time of each rhythm point corresponds to, first determines subelement 4022 are determined as the characteristic time of the background music at the time of then corresponding to each rhythm point.That is, the background sound At the time of the characteristic time that pleasure includes is that each of which rhythm point corresponds to.
In the embodiment of the present invention, above-mentioned selection unit 403 may include that the first acquisition subelement 4031 and first is chosen Subelement 4032, in which:
First obtains subelement 4031, for obtaining the broadcasting total duration T of the Target Photo video, and determines that the broadcasting is total Object time set T' in duration.
In the specific implementation, the broadcasting total duration T of the Target Photo video can be system default duration, it is also possible to user The duration of setting can also be the total duration of the background music, and the embodiment of the present invention is without limitation.Therefore, when first obtains son When the broadcasting total duration of the acquisition Target Photo video of unit 4031 is T, when will determine multiple targets from broadcasting total duration It carves, each object time t'kIt indicates, t'k=(T/N) * k, wherein 1≤k≤N-1, and k is integer, N is Target Photo video The quantity for the playing pictures for including.That is, the first acquisition subelement 4031, which can will play total duration T, is divided into N parts, often Part indicates an object time, shares (N-1) a object time, and this (N-1) a object time is object time set T' In element.That is, the first aim moment is T/N in object time set T', the second target moment is (T/ N) * 2, third object time is (T/N) * 3, and (N-1) a namely the last one object time is (T/N) * (N-1).
As an example it is assumed that the Target Photo video includes 8 playing pictures, and when the broadcasting of the Target Photo video is total A length of 24 seconds, then first acquisition subelement 4031 will will play total duration in determine object time set T'=[3,6, 9,12,15,18,21]。
It should be noted that the first acquisition subelement 4031 determines target from the broadcasting total duration of Target Photo video Moment set, can be and execute before the characteristic time that the first determination unit 402 determines background music, be also possible to first Determination unit 402 determines that the characteristic time of background music executes later, can also be and the first determination unit 402 determines background sound Happy characteristic time is performed simultaneously, and the embodiment of the present invention is without limitation.Wherein, the quantity ratio for the characteristic time that background music includes The quantity for the object time for including in object time set T' is more.
First chooses subelement 4032, for choosing and the object time from the characteristic time that the background music includes t'kSwitching moment t of the nearest characteristic time as kth playing picturesk。
In the specific implementation, determining object time set T' and the first determination unit in the first acquisition subelement 4031 After 402 determine the characteristic time that the background music includes, first, which chooses subelement 4032, to divide from these characteristic times It Xuan Qu not be broadcast to obtain (N-1) a characteristic time and be used as from first with the immediate characteristic time of each object time Put the switching moment of picture to (N-1) playing pictures.That is, the first selection subelement 4032 is broadcast in selection kth Put the switching moment t of picturekWhen, it is multiple characteristic times for including from the background music from selecting away from object time t'kRecently Characteristic time.
Further, switching moment t is determined in the first acquisition subelement 4031kLater, first subelement 4032 is chosen It can be made of according to the rule production of an a playing pictures corresponding switching moment background music and N playing pictures Target Photo video.
As an example it is assumed that the broadcasting total duration of the Target Photo video is 24 seconds, the total duration of background music is also 24 Second, wherein the collection of all characteristic times that the background music includes composition be combined into [2,3,5,8,11,12,14,17,18,20, 21,23,24], and the first acquisition subelement 4031 from play the object time collection determined in total duration 24 seconds be combined into T '=[3, 6,9,12,15,18,2].Therefore, the first selection subelement 4032 will be chosen respectively from characteristic time most connects with object time The switching moment of each playing pictures when close characteristic time [3,5,8,12,14,18,21] is as Target Photo video playing.
As a kind of feasible embodiment, above-mentioned second determines that subelement 405 may include sorting subunit 4051, the Two determine that subelement 4052, second obtains subelement 4053 and the second selection subelement 4054, in which:
Sorting subunit 4051, rhythm point for including by the background music according to the background music broadcasting timing into Row sequence, obtains the arrangement serial number of each rhythm point.
In the specific implementation, sorting subunit 4051 can include to the background music according to the broadcasting timing of the background music Rhythm point be ranked up, to obtain the arrangement serial number of each rhythm point, such as first rhythm point, second rhythm point, y A rhythm point, its corresponding arrangement serial number of m-th rhythm point is respectively 1,2, y, M.
Second determines subelement 4052, for determining switching moment tkArrangement sequence of the corresponding rhythm point in the rhythm point Number ak。
In the specific implementation, due to switching moment tkAnd the corresponding characteristic time of rhythm point that background music includes, therefore, Second determines subelement 4052 after the arrangement serial number for determining each rhythm point, so that it may determine each switching moment pair The arrangement serial number for the rhythm point answered, so that it is determined that switching moment t outkThe arrangement serial number of corresponding rhythm point, is denoted as ak.Namely It says, switching moment t1The arrangement serial number a of corresponding rhythm point1It indicates, switching moment t2The arrangement serial number of corresponding rhythm point is used a2It indicates, switching moment tN-1The arrangement serial number a of corresponding rhythm pointN-1It indicates.
For example, the switching moment that selection unit 403 is determined is respectively [4,7,11,16,21,24], then sorting Arrangement of first switching moment that subelement 4051 obtains corresponding rhythm point in all rhythm points that background music includes Serial number may be 10, and arrangement sequence of second switching moment corresponding rhythm point in all rhythm points that background music includes Number may be 21.As k=2, second determines the switching moment t that subelement 4052 is determined2The arrangement sequence of corresponding rhythm point Number just be a2=21.
Second obtains subelement 4053, for obtaining (ak+ m) the corresponding characteristic time of a rhythm point, and calculate (ak+ M) a rhythm point and akTarget duration between a rhythm point.
In the specific implementation, m is the maximum rhythm point amount threshold for including, rhythm points in the playing duration for switch animation Amount threshold value can be set by user, be also possible to 400 system default of picture switching device, the embodiment of the present invention does not limit It is fixed.Therefore, when second determines that subelement 4052 determines the arrangement serial number of corresponding rhythm point of each switching moment, second is obtained Take subelement 4053 that will determine the corresponding switching animation of the playing pictures according to every playing pictures corresponding switching moment Playing duration.That is, determining that its corresponding switching moment is t in selection unit 403 for kth playing picturesk When, the second acquisition subelement 4053 is assured that switching moment tkThe arrangement serial number a of corresponding rhythm pointk.Therefore, Two obtain subelement 4053 will be with akA rhythm point is starting point, and (a is searched from the background musick+ m) a rhythm point pair Then the characteristic time answered calculates (ak+ m) the corresponding characteristic time of a rhythm point and switching moment be tkBetween time difference, Target duration as between the two rhythm points.
It should be noted that in same first background music, it is understood that there may be when interval between the rhythm point of various pieces Between inconsistent situation, then the switching animation between adjacent two playing pictures passes through (ak+ m) a rhythm point feature when It carves and akThe characteristic time of a rhythm point may also be also different come the target duration determined.If only by obtaining any phase The mode at the interval moment between adjacent two rhythm points determines that the playing duration of switching animation, possibility will have certain broadcastings Picture may be mismatched in incision with the rhythm point of background music.Therefore, a is calculated in this waykA rhythm point With (ak+ m) the target duration between a rhythm point is more accurate.Certainly, if second determines that subelement 4052 determines this Interval time between two rhythm points of arbitrary neighborhood of background music is identical, and the second acquisition subelement 4053 can also be obtained first Interval time between adjacent rhythm point, then interval time is multiplied with m can be obtained by it is each switching animation broadcasting when Long, the playing duration that the arbitrary neighborhood two obtained from opens the switching animation between playing pictures is identical.
As an example it is assumed that 5 seconds switching moments for first playing pictures, the switching for second playing pictures in 12 seconds Moment, 18 seconds switching moments for third playing pictures, the playing duration of the switching animation of setting include up to 5 rhythm Point, the characteristic time of the 5th rhythm point after first switching moment corresponding rhythm point are 7 seconds, second switching moment The characteristic time of the 5th rhythm point after corresponding rhythm point is 13 seconds, after third switching moment corresponding rhythm point The 5th rhythm point characteristic time be 19.2 seconds, therefore, obtained target duration is respectively 2 seconds, 1 second, 1.2 seconds.
Second chooses subelement 4054, for the default playing duration threshold value t from switching animationmaxIn the target duration Choose the playing duration for the switching animation that minimum duration is switched to as kth playing pictures between (k+1) playing pictures sk。
In the specific implementation, tmaxWhen being played for the maximum of picture switching device 400 or each switching animation set by user It is long, i.e., default playing duration threshold value.Therefore, subelement 4053 is obtained second obtain (ak+ m) the corresponding feature of a rhythm point Moment, and calculate (ak+ m) a rhythm point and akAfter target duration between a rhythm point, second chooses subelement 4054 can be directed to every playing pictures, target duration and default playing duration threshold value t from calculated switching animationmaxBetween Choose playing duration s of the smallest duration as the corresponding switching animation of the playing picturesk.That is, being broadcast determining that kth is opened When putting the playing duration of the corresponding switching animation of picture, the second acquisition subelement 4053 can calculate its switching moment t firstkIt is corresponding AkA rhythm point and (ak+ m) target duration between a rhythm point, then second when choosing subelement 4054 from target Minimum duration is chosen in long and switching animation default playing duration threshold value as the corresponding animation that switches of kth playing pictures Playing duration sk。
For example, if Target Photo video does not set switching animation when playing out picture switching, After selection unit 403 determines every playing pictures corresponding switching moment according to the characteristic time of background music, the target The play time of every playing pictures in picture video are as follows: 0~3 second play time for first playing pictures, the 3rd~7 second For the play time of second playing pictures, and 7~12 seconds play times for third playing pictures.
Again for example, it if Target Photo video is set with switching animation when playing out picture switching, and sets The playing duration of switching animation include up to 4 rhythm points, the default playing duration for switching animation is 1.5 seconds.So basis The switching moment of available first playing pictures of the play time of above-mentioned playing pictures is 3 seconds, second playing pictures Switching moment is 7 seconds.If the 4th rhythm point after the switching moment of first playing pictures corresponding rhythm point is corresponding Characteristic time be 4 seconds, the 4th rhythm point after the switching moment of second playing pictures corresponding rhythm point is corresponding Characteristic time is 8.9 seconds, then a length of 1 second when can be obtained by first aim, when second target is 1.9 seconds a length of, and is cut The default playing duration of picture of moving is to compare for 1.5 seconds, and the second selection subelement 4054 is assured that out first playing pictures The playing duration of corresponding switching animation is 1 second, and the playing duration of the corresponding switching animation of second playing pictures is 1.5 Second.
In the embodiment of the present invention, above-mentioned switch unit 404 is selected when playing the Target Photo video according to selection unit 403 The concrete mode that the switching moment taken plays out the switching of picture can be with are as follows:
Kth playing pictures are controlled in the switching moment t of kth playing pictureskSwitching animation is switched to, and controls this and cuts Move and is drawn in (tk+sk) moment switches to (k+1) playing pictures.
In the specific implementation, determining broadcasting for the corresponding switching animation of every playing pictures respectively in the second determination unit 405 Put duration skLater, switch unit 404 can control kth playing pictures in tkMoment cuts out, and cuts and switches in synchronization Animation, and in switching animation play skIt, will be in (t when durationk+sk) moment cuts out, so that (k+1) playing pictures exist Synchronization incision.
For example, the switching moment of first playing pictures is 3 seconds, and the playing time of corresponding switching animation is 1.2 seconds, the switching moment of second playing pictures was 7 seconds, and the playing time of corresponding switching animation is 0.9 second, then When playing the Target Photo video, first playing pictures is switched to the switching animation of setting when playing to 3 seconds, and switching animation is broadcast It is switched to second playing pictures when putting to 4.2 seconds, correspondingly, being switched to setting when second playing pictures was played to 7 seconds Switching animation, and third playing pictures are switched to when the switching animation play was to 7.9 seconds.
As it can be seen that picture switching device can be total by the broadcasting of Target Photo video in the picture switching device described in Fig. 5 Duration is equally divided into N parts, therefrom choose before (N-1) a object time, then from the characteristic time determined respectively choose with The immediate characteristic time of each object time, as the Target Photo video play out picture switching when switching when It carves.Can both guarantee that the playing duration of each playing pictures was close in this way, be not in part playing pictures play time it is too short, And the situation that the play time of part playing pictures is too long, and every playing pictures can be allowed to cut according to the rhythm of background music It changes, to enrich playing pictures switching mode when picture video plays in conjunction with background music depth.Further, the figure Piece switching device can also set every playing pictures and play the switching animation of setting in handoff procedure, to increase picture view Frequency is in the interest for playing out picture switching.Meanwhile the picture switching device can by adjusting switching animation broadcasting when It is long to adjust the play time of every playing pictures, to enhance picture video when carrying out picture switching and background music The degree of correlation.
Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, being can be with Relevant hardware is instructed to complete by computer program, the program can be stored in a computer-readable storage medium In, the program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein, the storage medium can be magnetic Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access Memory, RAM) etc..
The above disclosure is only the preferred embodiments of the present invention, cannot limit the right model of the present invention with this certainly It encloses, therefore equivalent changes made in accordance with the claims of the present invention, is still within the scope of the present invention.

Claims (4)

  1. Picture switching method when 1. a kind of picture video plays characterized by comprising
    The background music of Target Photo video is obtained, and obtains the playing pictures that the Target Photo video includes；
    The characteristic time that the background music includes is determined according to the characteristic information of the background music；
    The broadcasting total duration T of the Target Photo video is obtained, and determines the object time set T' played in total duration, T'={ t'k|t'k=(T/N) * k, 1≤k≤N-1 }, wherein k is integer, t'kIndicate include in the object time set T' Object time, N is integer more than or equal to 2, and N indicates the quantity of the playing pictures, the spy that the background music includes Quantity of the quantity at sign moment more than the object time for including in the object time set T'；
    It is chosen and the object time t' from the characteristic time that the background music includeskNearest characteristic time is as kth The switching moment t of the playing picturesk；
    The rhythm point that the background music includes is ranked up according to the broadcasting timing of the background music, is obtained each described The arrangement serial number of rhythm point；
    Determine the switching moment tkArrangement serial number a of the corresponding rhythm point in the rhythm pointk；
    Obtain akThe corresponding characteristic time of+m rhythm points, and calculate ak+ m rhythm points and akA rhythm point it Between target duration, wherein m for switch animation the included rhythm point of playing duration amount threshold；
    From the default playing duration threshold value t of switching animationmaxWith the minimum duration of selection in the target duration as kth Zhang Suoshu Playing pictures switch to the playing duration s of the switching animation between kth+1 playing picturesk；
    Kth Zhang Suoshu playing pictures are controlled in the switching moment t of kth Zhang Suoshu playing pictureskThe switching animation is switched to, and The switching animation is controlled in tk+skMoment switches to kth+1 playing pictures.
  2. 2. the method according to claim 1, wherein the characteristic information according to the background music determines institute State the characteristic time that background music includes, comprising:
    Parse the rhythm point that the background music includes；
    It is determined as the characteristic time of the background music at the time of each rhythm point is corresponded to.
  3. 3. a kind of picture switching device characterized by comprising
    Acquiring unit for obtaining the background music of Target Photo video, and obtains the broadcasting that the Target Photo video includes Picture；
    The characteristic information of first determination unit, the background music for being obtained according to the acquiring unit determines the background The characteristic time that music includes；
    Selection unit for obtaining the broadcasting total duration T of the Target Photo video, and determines the mesh played in total duration Mark moment set T', T'={ t'k|t'k=(T/N) * k, 1≤k≤N-1 }, wherein k is integer, t'kIndicate the object time The object time for including in set T', N is the integer more than or equal to 2, and N indicates the quantity of the playing pictures, the background Quantity of the quantity for the characteristic time that music includes more than the object time for including in the object time set T'；From the back It is chosen and the object time t' in the characteristic time that scape music includeskNearest characteristic time is played as kth Zhang Suoshu schemes The switching moment t of piecek；
    Second determination unit, the rhythm point for including by the background music are carried out according to the broadcasting timing of the background music Sequence, obtains the arrangement serial number of each rhythm point；Determine the switching moment tkCorresponding rhythm point is in the rhythm point In arrangement serial number ak；Obtain akThe corresponding characteristic time of+m rhythm points, and calculate ak+ m rhythm points and ak Target duration between a rhythm point, wherein m for switch animation the included rhythm point of playing duration amount threshold；From cutting Move the default playing duration threshold value t of picturemaxWith the minimum duration of selection in the target duration as kth Zhang Suoshu playing pictures Switch to the playing duration s of the switching animation between kth+1 playing picturesk；
    Switch unit, for controlling kth Zhang Suoshu playing pictures in the switching moment t of kth Zhang Suoshu playing pictureskSwitch to institute Switching animation is stated, and controls the switching animation in tk+skMoment switches to kth+1 playing pictures.
  4. 4. device according to claim 3, which is characterized in that first determination unit includes parsing subunit and One determines subelement, in which:
    The parsing subunit, the rhythm point for including for parsing the background music；
    Described first determines subelement, is determined as the feature of the background music at the time of for corresponding to each rhythm point Moment.
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