CN105488067A - Slide generation method and apparatus - Google Patents

Abstract

The invention provides a slide generation method and device. The invention relates to the mobile application field; and solves the problem of poor user experience in the existing slide show mode on the mobile terminal. The method includes: obtaining a plurality of pictures selected by the user for making a slideshow; obtaining a background audio file; determining a slide show speed according to the duration of the background audio and the number of pictures used for making the slideshow; according to the Playback rate, generate slideshow. The technical scheme provided by the invention is suitable for mobile terminals, and realizes slide generation of user-defined content and synchronous playback.

Description

Slideshow generation method and device

technical field

The present invention relates to the field of mobile applications, in particular to a slide generation method and device on a mobile terminal.

Background technique

There is no doubt about the popularity and importance of mobile terminals in today's society. As mobile terminals become more and more important, users pay more and more attention to their entertainment features, especially the camera function and related post-production picture editing and production. It is also becoming more and more abundant, and making slideshows is also a very important function. At present, the more common slideshow application on the terminal is to preview and play the slideshow with a certain frame rate and different animation effects on the pictures that have been taken, and can add background music.

However, the content of the existing slide show mode on the mobile terminal cannot be customized, and the problem of out-of-synchronization of audio and picture playback is prone to occur, resulting in poor user experience.

Contents of the invention

The present invention provides a method and device for generating a slide show, which solves the problem of poor user experience in the existing slide show mode on a mobile terminal.

A slide generation method comprising:

Obtain multiple pictures selected by the user for making slideshows;

Get the background audio file;

Determine the playback rate of the slideshow according to the duration of the background audio and the number of pictures used to make the slideshow;

According to the playback rate, a slide show is generated.

Preferably, obtaining multiple pictures selected by the user for making a slideshow includes:

Obtain multiple pictures selected by the user one by one;

Count the number of pictures selected by the user.

Preferably, obtaining multiple pictures selected by the user for making a slideshow includes:

Obtain the photo filter criteria selected by the user;

From the photos stored locally in the terminal, according to the filtering conditions, a plurality of pictures are selected for making slideshows;

Count the number of filtered images.

Preferably, the screening conditions include any or more of the following:

Shooting time or saving time, shooting location, custom label content.

Preferably, obtaining the photo filter conditions selected by the user includes:

directly obtain the content of the filtering conditions entered by the user; or,

Get the first picture clicked by the user, and determine the content of the filter condition from the property information of the picture.

The present invention also provides a slide generation device, including:

The picture material acquisition module is used to acquire multiple pictures selected by the user for making slideshows;

Audio acquisition module, used to acquire background audio files;

Play rate calculation module, for determining the slide show rate according to the duration of the background audio and the number of pictures used to make the slide show;

The slideshow production module is configured to generate slideshows according to the playback rate.

Preferably, the picture material acquisition module includes:

The user selects the collection unit, which is used to obtain multiple pictures selected by the user one by one;

The first quantity counting unit is configured to count the number of pictures selected by the user.

Preferably, the picture material acquisition module includes:

Filters hive to get the photo filters selected by the user;

The screening execution unit is configured to select a plurality of pictures from the photos locally stored in the terminal according to the filtering conditions for making slideshows;

The second quantity counting unit is used for counting the number of pictures obtained through screening.

Preferably, the screening conditions include any or more of the following:

Shooting time or saving time, shooting location, custom label content.

Preferably, the filter condition configuration unit includes:

Directly configure subunits, used to directly obtain the content of filter conditions entered by users;

The configuration information extraction subunit is used to obtain the first picture selected by the user, and determine the content of the filter condition from the attribute information of the picture.

The present invention provides a method and device for generating a slideshow. Firstly, a plurality of pictures selected by the user for making a slideshow are obtained, and then a background audio file is obtained, and then according to the duration of the background audio and the pictures used for making a slideshow The number determines the playback rate of the slideshow, and generates the slideshow according to the playback rate. It realizes slide generation with custom content and playback synchronization, and solves the problem of poor user experience in the existing slide show mode on mobile terminals.

Description of drawings

FIG. 1 is a schematic structural diagram of a slide production system provided by Embodiment 1 of the present invention;

Fig. 2 is the flow chart of the intelligent selection of photo selection module 101;

Fig. 3 is the flowchart of the manual selection of photo selection module 101;

Fig. 4 selects the flow chart of audio file for audio file selection module 102;

Fig. 5 is the flow chart that final slideshow production module 103 generates slideshow;

FIG. 6 is a flow chart of a slide generation method provided by Embodiment 2 of the present invention;

FIG. 7 is a schematic structural diagram of a slide generation device provided by Embodiment 3 of the present invention;

FIG. 8 is a schematic structural diagram of the picture material acquisition module 701 in FIG. 7;

FIG. 9 is a schematic structural diagram of the filter condition configuration unit 7013 in FIG. 8 .

detailed description

At present, the more common slideshow application on the terminal is to preview and play the slideshow with a certain frame rate and different animation effects on the pictures that have been taken, and can add background music. However, this method often has two disadvantages. First, the user can only preview all the photos taken as a slideshow, and cannot select photos by himself or herself, nor can he intelligently select photos according to the attributes of the photos; second, the user It is impossible to control the number of slides and the matching degree of the music. Sometimes the background music has not finished playing, but the photos have been played, and sometimes there are many slides that have not finished playing, but the music is too short.

In order to solve the above problems, the embodiments of the present invention provide a method and device for generating slideshows on a mobile terminal, which allows users to select photos arbitrarily and at the same time provide an intelligent matching function, that is, automatically match according to the attributes of the photos selected by the terminal Photos with the same attributes are automatically selected, which also improves the user experience.

Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

First, Embodiment 1 of the present invention will be described with reference to the accompanying drawings.

An embodiment of the present invention provides a slideshow production system, the structure of which is shown in Figure 1, including:

Photo selection module 101, this module includes a counter, and provides intelligent selection function;

Music selection module 102;

Slideshow making module 103 .

The entire slideshow production system is composed of the above modules, and the specific scheme is introduced below.

After taking a photo, the user can customize the selected photos, and use the smart matching function to automatically match the selected photos according to the specific attributes of the selected photos; the user can load a custom selected audio file as the playback background, and can The playback rate is calculated according to the duration of the selected music and the number of selected photos, so as to achieve the effect of a perfect match between the duration of the music playback and the duration of the slideshow.

After the user takes the photo, start creating the slideshow. When making a slideshow, the terminal can enter the saved photo path from the file manager's entrance, and each time a photo is selected, the counter will be incremented by one until the photo is selected, and the counter will accumulate the number of selected photos and send them to the slideshow Production module, the above is the process of manually selecting photos.

If the user turns on the smart selection function before selecting photos, the system provides two smart selection methods at this time, one is based on the time when the picture was taken, and the other is based on the location where the picture was taken. If the former is selected, then after the user selects the first photo, the system will automatically extract the time information in the file attributes, and then automatically search for files with the same attributes in the current path, and each time a photo with the same attributes is found, The system will automatically select, add one to the counter, until all searches are completed, and send the final result to the slideshow production module. If you choose to intelligently select according to the photo location of the picture, because the location attribute requires the GPS function to be turned on before taking a photo, not all photos have this attribute, so the system will extract the file attribute of the first photo to see if there is location information, if There is no order to select the next one, but the photo information selected by the user this time is also effectively saved, and the counter will also be accumulated and sent to the slideshow production module until the first photo with the location attribute appears, and the location will be saved at this time Save the information and then search for photos with the same location attributes. Every time one is found, it will be automatically selected, and the counter will be incremented by one until the search is completed. Finally, the selected photo information and the accumulated number of photos will be sent to the slideshow production module.

After the photo is selected, the terminal enters the path of the audio file storage of the file manager to select the background music. At this time, the terminal extracts the duration information of the audio file storage, stores this information and sends it to the slideshow production module; the slideshow production module then According to the number of photos in the counter and the acquired music duration, the speed of playing the slideshow is calculated in a functional way, which satisfies the effect of matching the music duration and the slideshow playback duration to the greatest extent.

First is the photo selection module 101 of the terminal. If the user does not open the smart selection function, the terminal will manually select: the system enters the path of the picture saved in the file manager to select, and the user performs an effective selection operation once, and the counter of the photo selection module increases. 1. When the photo selection is completed, the terminal will receive a trigger signal from the system. At this time, the counter accumulation is over, and the final accumulation result will be saved and sent to the slideshow production module, and the counter will be cleared; if the user turns on the smart selection function: the user can Choose to automatically select by time the photo was taken or automatically select by location when the photo was taken. If you choose to automatically select according to the photo time, the terminal will automatically extract the time attribute of the file when the first photo is selected, and then automatically search for files with the same attribute, save the extracted file attribute, and then perform all other file attributes If they are the same, the time is the same, and the system will automatically select the photo. Every time a valid selection is made, the system will send the photo information to the slideshow production module, and the counter will increase by one until all photos are automatically selected. In the end, this process is consistent with manual selection. If you choose to automatically select according to the photo location, the terminal will extract the location attribute of the first selected photo. If there is no such attribute, it means that this photo has no matching elements, but it is also a valid selection, and the system will send the photo information to the slideshow Make the module and add one to the counter, and continue to select the next photo until the first photo with location attributes appears. At this time, the terminal will extract the location information, automatically search for matching files with the same attributes, and each time a photo is found, then The photo is tagged and sent to the slideshow production module, and the counter is incremented until the search match is completed, and the counter is reset.

After the photo is selected, the system enters the music selection module 102, and this module enters the entrance of the file manager to find the storage path of the audio file. After the user effectively selects the audio file, the music selection module will extract the duration information of the audio file, and This information is sent to the slideshow production module 103; after the pictures and music are selected, the system enters the slideshow production module 103. The slideshow production module 103 calculates the matching playback rate in the form of a function according to the received photo number information and the music duration information. If the selected audio file is too short, the calculated playback rate is less than a specific value, (this value The user can pre-set, if not set, it is the default minimum experience value of the system), then the user is prompted that the music is too short, and the music needs to be selected again. At this time, the music selection module 102 is entered again, and the user can re-select a longer audio file. It is also possible to select an audio file and the previous audio file to play in sequence. If the latter is selected, the slideshow production module 103 needs to accumulate the music duration obtained for the first time and the music duration obtained for the second time to calculate the playback speed . After the playback speed is set, the user can choose the playback effect. After the above settings are completed, the system will play the selected photos at a certain playback speed with the set music background. At this time, the entire slideshow is completed.

As shown in FIG. 2 , the flow chart of intelligent selection of the photo selection module 101 involved in the present invention is used to obtain specific photo information selected by the terminal and accumulate the number of photos. The user first chooses whether to automatically select by time or by location. If you choose to automatically select according to time, first manually select the first photo, and the terminal will tag and count the information of this photo and send it to the slideshow production module 103, and extract the time attribute of the file and save it. Then search all pictures sequentially, compare the saved time attribute with the same byte of each picture file, if the comparison results are consistent, then automatically select the photo, and send this information to the 103 module after the photo is tagged, and the counter adds one. Repeat the above process until all image searches are completed. After completion, the system will receive a trigger message. At this time, all files with the same time attribute will be automatically selected and the counter will be reset. If the latter is selected, that is, the pictures are automatically selected according to the location information, first the first picture is manually selected, and the terminal tags and counts the information of this picture and sends it to the slideshow production module 103, and judges whether the file can be extracted Location information (whether the file contains location information depends on whether the GPS function is turned on when the photo is taken), if it is not extracted, the photo is also a valid selection, and the information is sent to the C module according to the process, and the counter is incremented by one, and then manually Select a photo, repeat the above process until the first photo with location attributes appears, extract the information and save it, search all pictures sequentially, compare whether the same bytes are consistent, if they are consistent, automatically select until all pictures are compared, at this time All photos with the same location attribute are selected, and the counter result is sent to C and cleared.

FIG. 3 is a flow chart of manual selection by the photo selection module 101 . The terminal first searches the path to save the picture through the path of the file manager, and then manually selects the photo, marks each successfully selected photo and sends it to the C module, and the counter is incremented by one every time the message of the successfully selected photo is obtained , until the selection is completed, the result is also sent to the slideshow making module 103 that makes the slideshow, and the slideshow making module 103 saves the information after receiving the information, and clears the counter.

FIG. 4 is a flow chart of selecting an audio file by the audio file selection module 102 in the embodiment of the present invention.

The terminal first searches for the storage path of the audio file through the path of the file manager, and then selects the audio file. After the terminal receives the message of effectively selecting a file, it marks the file and sends it to the slideshow production module 103, and extracts the duration information of the file and sends it to the slideshow production module 103, and the slideshow production module 103 saves the information after receiving the information.

FIG. 5 is a flow chart of the final slide creation module 103 generating slides. Firstly, the information obtained by the photo selection module 101 and the audio file selection module 102 are respectively extracted, and the appropriate playback speed is calculated by the following function calculation.

Function 1: playback speed = music duration (s) / number of photos (pieces)

The terminal allows the user to set the minimum value of the playback speed in advance. If the user does not set it, the default experience value will be used. If the calculated playback speed is less than the minimum value, the system will prompt the user to select the music background file again. You can undo the file you selected last time and select it again, or you can accumulate and re-select the file based on the last file, and re-enter B The flow of the module. If the user chooses the latter, the system will play the two selected files sequentially, accumulate the duration, and calculate the playback speed again in the manner of function 1 above.

The photo information determined by the photo selection module 101, the audio file information determined by the audio file selection module 102, and the entire processing flow of the slideshow production module 103 constitute the entire slideshow production system. The selected audio files will be used as the background, and the selected files will be played sequentially until the end of the photo and music playback.

Embodiment 1 of the present invention will be described below with reference to the accompanying drawings.

An embodiment of the present invention provides a method for generating a slideshow. The process of creating a slideshow using this method is shown in Figure 6, including:

Step 601. Obtain multiple pictures selected by the user for making slideshows;

In the embodiment of the present invention, the pictures used may be pictures taken by the mobile terminal, or other pictures saved.

In this step, the specific acquisition includes two methods, namely:

1. The user determines the pictures to be used for making slideshows by selecting one by one;

In this way, the mobile terminal first obtains multiple pictures selected by the user one by one, and then counts the number of pictures selected by the user. Specifically, a counter may be used, and each time a user selects a picture, the counter is incremented by 1. For details, please refer to the relevant description in Embodiment 1 of the present invention.

2. The user turns on the automatic matching mode, and the terminal selects pictures according to the filtering conditions set by the user;

The screening conditions include any or more of the following:

Shooting time or saving time, shooting location, custom label content.

Wherein, the content of the custom label may be the title of the picture edited by the user when taking or saving the picture, the group (folder) where the picture is located, and the like.

First, you need to obtain the photo filter conditions selected by the user, including:

1) Directly obtain the content of the filter condition input by the user, that is, the user can directly set the filter condition. When setting filter conditions, you can set filter conditions that only include one item, such as setting only the shooting time or saving time as February 10, 2014, or setting only the shooting location as Shanghai, or you can set multiple filter conditions. Content filtering conditions, such as saving pictures from January 1 to March 1, 2014 in the picture folder.

2) Obtain the first picture selected by the user, and determine the content of the filter condition from the attribute information of the picture;

That is, after the user selects a picture, the attribute information of the picture is extracted, such as shooting or saving time, shooting location, etc., and these attribute information are used as filtering conditions to select other pictures with the same attribute information as pictures for making slideshows.

After the filter conditions are determined, a plurality of pictures can be selected from the photos locally stored in the terminal according to the filter conditions for making a slideshow.

Count the number of images filtered

Step 602, obtaining background audio files;

In this step, the audio file used as the background sound of the slideshow is selected from the audio files locally stored in the mobile terminal.

Step 603: Determine the playback rate of the slideshow according to the duration of the background audio and the number of pictures used to make the slideshow;

In this step, the playback rate can be calculated, that is, the display time of each picture can be determined, so as to ensure that the picture display and audio playback end at the same time, and eliminate the situation where the picture display is completed but the audio file is not played, or the audio file is played and the picture continues to be displayed The problem. For the specific calculation method, refer to the corresponding description in Embodiment 1 of the present invention.

Step 604: Generate a slideshow according to the playback rate.

Embodiment 3 of the present invention will be described below with reference to the accompanying drawings.

An embodiment of the present invention provides a slide generation device, the structure of which is shown in Figure 7, including:

The picture material acquisition module 701 is used to acquire a plurality of pictures selected by the user for making slideshows;

Audio acquisition module 702, used to acquire background audio files;

The playback rate calculation module 703 is used to determine the playback rate of the slideshow according to the duration of the background audio and the number of pictures used to make the slideshow;

The slideshow making module 704 is configured to generate a slideshow according to the playback rate.

Preferably, the structure of the picture material acquisition module 701 is as shown in Figure 8, including:

User selection collection unit 7011, configured to acquire multiple pictures selected by the user one by one;

The first quantity counting unit 7012 is configured to count the number of pictures selected by the user.

Preferably, the picture material acquisition module 701 also includes:

A filtering condition configuration unit 7013, configured to obtain the photo filtering condition selected by the user;

A screening execution module 7014, configured to filter out multiple pictures from the photos stored locally in the terminal according to the filtering conditions for making slideshows;

The second quantity counting unit 7015 is configured to count the number of pictures obtained through screening.

Preferably, the screening conditions include any or more of the following:

Shooting time or saving time, shooting location, custom label content.

Preferably, the structure of the filter condition configuration unit 7013 is as shown in Figure 9, including:

The direct configuration subunit 901 is used to directly obtain the filtering condition content input by the user;

The configuration information extraction subunit 902 is configured to obtain the first picture selected by the user, and determine the content of the filtering condition from the attribute information of the picture.

The above slide generation device can be integrated into the mobile terminal system, or can be installed in the mobile terminal system as a separate software application, and the corresponding functions can be completed by the mobile terminal.

The embodiment of the present invention provides a method and device for generating a slideshow. First, multiple pictures selected by the user for making a slideshow are obtained, and then a background audio file is obtained. Then, according to the duration of the background audio and the The number of pictures in the slice determines the playback rate of the slideshow, and generates the slideshow according to the playback rate. It realizes slide generation with custom content and playback synchronization, and solves the problem of poor user experience in the existing slide show mode on mobile terminals.

Those of ordinary skill in the art can understand that all or part of the steps of the above-mentioned embodiments can be implemented using a computer program flow, the computer program can be stored in a computer-readable storage medium, and the computer program can be run on a corresponding hardware platform (such as system, device, device, device, etc.), and when executed, includes one or a combination of the steps of the method embodiment.

Optionally, all or part of the steps in the above embodiments can also be implemented using integrated circuits, and these steps can be fabricated into individual integrated circuit modules, or multiple modules or steps among them can be fabricated into a single integrated circuit module accomplish. As such, the present invention is not limited to any specific combination of hardware and software.

The devices/functional modules/functional units in the above embodiments can be realized by general-purpose computing devices, and they can be concentrated on a single computing device, or distributed on a network composed of multiple computing devices.

When each device/functional module/functional unit in the above-mentioned embodiments is realized in the form of a software function module and sold or used as an independent product, it can be stored in a computer-readable storage medium. The computer-readable storage medium mentioned above may be a read-only memory, a magnetic disk or an optical disk, and the like.

Any person familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope described in the claims.

Claims (10)

1. a lantern slide generation method, is characterized in that, comprising:

Multiple of acquisition user selection are for making the picture of lantern slide;

Background extraction audio file;

According to the duration of described background audio and the quantity for the picture that makes lantern slide, determine lantern slide playback rate;

According to described playback rate, generate lantern slide.

2. lantern slide generation method according to claim 1, is characterized in that, multiple of acquisition user selection comprise for the picture making lantern slide:

Obtain the plurality of pictures that user clicks one by one;

The quantity of the picture that counting user is selected.

3. lantern slide generation method according to claim 1, is characterized in that, multiple of acquisition user selection comprise for the picture making lantern slide:

Obtain the photo screening conditions that user selects;

From the photo that terminal local stores, according to described screening conditions, filter out plurality of pictures for making lantern slide;

Statistics screens the quantity of the picture obtained.

4. lantern slide generation method according to claim 3, is characterized in that, described screening conditions comprise following arbitrary or multinomial arbitrarily:

Shooting time or holding time, spot for photography, customized label content.

5. lantern slide generation method according to claim 4, is characterized in that, the photo screening conditions obtaining user's selection comprise:

Directly obtain the screening conditions content of user's input; Or,

Obtain the first pictures that user clicks, from the attribute information of this picture, determine the content of screening conditions.

6. a lantern slide generating apparatus, is characterized in that, comprising:

Picture materials acquisition module, for obtain user select multiple for making the picture of lantern slide;

Audio frequency acquisition module, for background extraction audio file;

Playback rate computing module, for according to the duration of described background audio and the quantity for the picture that makes lantern slide, determines lantern slide playback rate;

Lantern slide manufacturing module, for according to described playback rate, generates lantern slide.

7. lantern slide generating apparatus according to claim 6, is characterized in that, described picture materials acquisition module comprises:

User's selection unit, for obtaining the plurality of pictures that user clicks one by one;

First quantity statistics unit, for the quantity of the picture that counting user is selected.

8. lantern slide generating apparatus according to claim 6, is characterized in that, described picture materials acquisition module comprises:

Screening conditions dispensing unit, for obtaining the photo screening conditions that user selects;

Screening performance element, in the photo that stores from terminal local, according to described screening conditions, filters out plurality of pictures for making lantern slide;

Second quantity statistics unit, for adding up the quantity of screening the picture obtained.

9. lantern slide generating apparatus according to claim 8, is characterized in that, described screening conditions comprise following arbitrary or multinomial arbitrarily:

Shooting time or holding time, spot for photography, customized label content.

10. lantern slide generating apparatus according to claim 9, is characterized in that, described screening conditions dispensing unit comprises:

Direct configuration subelement, for directly obtaining the screening conditions content of user's input;

Configuration information extracts subelement, for obtaining the first pictures that user clicks, determines the content of screening conditions from the attribute information of this picture.