WO2010102525A1

WO2010102525A1 - Method for generating gif, and system and media player thereof

Info

Publication number: WO2010102525A1
Application number: PCT/CN2010/070248
Authority: WO
Inventors: 吴运声; 何健; 李慧
Original assignee: 腾讯科技（深圳）有限公司
Priority date: 2009-03-13
Filing date: 2010-01-19
Publication date: 2010-09-16
Also published as: SG173703A1; MY158426A; CN101510313A

Abstract

The present invention is applicable to the field of data processing, and provides a method for generating the Graphics Interchange Format (GIF) and the system and the media player thereof. The method includes the following steps: receiving a parameter for generating GIF set by a user; stopping playing a media file after having received a command for generating GIF of the user, and intercepting a video frame of the media file into single images based on the parameter for generating GIF set by the user; coding the single images based on the parameter for generating GIF set by the user, so as to generate an object GIF file. The present invention could intercept the video content of the media file based on the parameter for generating GIF set by the user during playing the media, so as to generate an object GIF file, while the user does not need to install and learn to use the special authoring tool for the GIF file, and the operating flow is simple and is convenient for the user to use.

Description

GIF generation method, system and media player

The present invention belongs to the field of data processing, and in particular, to a GIF generation method, system, and media player. Background of the invention

At present, watching videos using a media player has become a popular learning and leisure mode for users. During the video viewing process, the user wants to save the short picture in the video or share it with other users. The mainstream media player software generally supports the video capture function, which intercepts a frame to be played as a JPG or BMP file. Insufficient operation is that only a single picture can be saved, and a video clip cannot be saved.

One of the features of the Graphics Interchange Format (GIF) is that multiple color images can be stored in one GIF file. If multiple images stored in one file are read out one by one and displayed on the screen, Forms the most single animation. Currently, almost all related software supports GIF, and there are a large number of software in the public domain that use GIF image files.

When converting video data to GIF files, it is common practice to take a frame of the video clip of interest in the media player and save it as a number of separate images, then use a specific GIF file creation tool to place the images. Made into a GIF. This approach requires users to install specific GIF file creation tools independently, and will use GIF file creation tools, which is cumbersome and inconvenient for users. Summary of the invention

An object of the present invention is to provide a GIF generation method, which is intended to solve the problem that a user needs to install a specific GIF file creation tool when converting video data into a GIF. The operation process is cumbersome and causes great inconvenience to the user.

The embodiment of the present invention is implemented as follows. A GIF generating method includes the following steps:

Receiving user-set GIF generation parameters;

After receiving the user's GIF generation instruction, the media file is stopped, and the video frame of the media file is intercepted into a single image according to the GIF generation parameter set by the user;

The single image is encoded according to a user-set GIF generation parameter to generate a target GIF file.

Another object of embodiments of the present invention is to provide a GIF generation system, the system comprising:

a GIF parameter control module, configured to receive a user-set GIF generation parameter;

The video frame extraction module is configured to: after receiving the GIF generation instruction of the user, stop playing the media file, and intercept the video frame of the media file into a single image according to the GIF generation parameter set by the user;

The GIF encoding module is configured to encode the single image according to a user-set GIF generating parameter to generate a target GIF file.

Another object of the embodiments of the present invention is to provide a media player, including a video post-processing unit, configured to perform video processing on the decoded video data, where the media player further includes a GIF generating subsystem, configured to The user-set GIF generation parameter intercepts the generated target GIF file from the video data processed by the video post-processing unit image.

In the embodiment of the present invention, the target GIF file may be generated by intercepting the video content of the media file according to the GIF generation parameter set by the user during the media playing process, and the user does not need to install and learn to use the special GIF file creation tool, and the operation flow is simple, and the user is convenient. use. BRIEF DESCRIPTION OF THE DRAWINGS

1 is a flowchart of an implementation of a GIF generation method according to an embodiment of the present invention; FIG. 2 is a specific implementation flow diagram of a GIF generation method according to an embodiment of the present invention;

3 is a schematic diagram of a GIF generation UI interface provided by an embodiment of the present invention;

4 is a structural diagram of a media player according to an embodiment of the present invention;

FIG. 5 is a structural diagram of a GIF generation subsystem according to an embodiment of the present invention. Mode for carrying out the invention

In order to make the objects, the technical solutions and the advantages of the present invention more comprehensible, the present invention will be further described in detail below with reference to the accompanying drawings. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the embodiment of the present invention, during the playing of the media file, the video content is intercepted according to the GIF generation parameter set by the user, and the target GIF file is generated, which is convenient for the user to use.

FIG. 1 is a flowchart showing an implementation process of a GIF generation method according to an embodiment of the present invention, which is described in detail as follows:

In step S101, a GIF generation parameter set by the user is received.

In order to enable the user to obtain a satisfactory GIF file, the user is allowed to set the relevant GIF generation parameters during the target GIF file generation process. As an embodiment of the present invention, the following GIF generation parameters may be provided for the user to set:

1. Video Capture Start Point: Define the video start frame you want to capture.

2. Intercept length: Define the length of the captured video. The video of the segment after the video is intercepted is intercepted into GIF, and the end of the length of the captured video is the end of the video interception.

3. Frame Interval: Define how long to extract a frame in the video. The frame interval is different and the number of extracted video frames will be different. 4. GIF playback speed: Define the playback speed of the generated target GIF file.

As an embodiment of the present invention, the user may also be allowed to set image processing parameters in the GIF generation parameters to process the image of the generated target GIF file, for example:

1. GIF resolution: Define the length and width of the generated GIF, such as 320 x 240, 200 150 and many other common resolutions.

2. Image quality: Define the image quality of the generated GIF, the image quality is different, and the generated GIF file size is also different.

In addition, in order to facilitate the user to identify the generated target GIF file, the user may also be allowed to set the fingerprint parameter, and the fingerprint is a picture superimposed in the target GIF file that can identify a certain meaning, such as a software identifier. The fingerprint is optional and can exist in the form of a Portable Network Graphic Format (PNG) file.

In the embodiment of the present invention, certain GIF generation parameters may be configured to allow user settings, and certain GIF generation parameters are configured to not allow user settings, in consideration of factors such as user experience, operating habits, and software propagation. The method can also be different. Among them, the video capture start point, intercept length, frame interval, GIF resolution and image quality need to be set before the target GIF file is generated. The GIF playback speed can be set again during the preview playback after the GIF is generated.

In step S102, after receiving the GIF generation instruction of the user, the playback of the media file is stopped, and the video frame of the media file is intercepted into a single image according to the GIF generation parameter set by the user.

In step S103, if the user sets image processing parameters, such as GIF resolution, image quality, etc., image processing is performed on the intercepted single image according to the image processing parameters set by the user, for example, changing the GIF resolution and improving the image. Quality and so on.

In step S104, if the user sets the fingerprint, the user-set fingerprint is superimposed on each single image.

In step S105, a single image is performed according to a GIF generation parameter set by the user. Encode, generate the target GIF file.

In step S106, the target GIF file output is saved.

FIG. 2 shows a specific implementation process of a GIF generation method provided by an embodiment of the present invention, which is described in detail as follows:

In step S201, a GIF interception instruction input by the user is received. As shown in Figure 3, the user can select the GIF intercept function button on the user interface (UI) of the media player to input the GIF intercept command.

In step S202, the media player pauses the playback of the current video, and obtains a GIF generation parameter such as a video capture start point, a cut length, a frame interval, and a GIF resolution set by the user. The user can set the GIF generation parameters in the setting interface popped up in the media player, and can view the set effect.

In step S203, according to the frame interval set by the user, one frame of the video data is intercepted and stored in the memory, and a plurality of frame single images are stored in the memory after the interception is completed.

In step S204, if the user sets the image processing parameter, the image is processed according to the GIF generation parameter set by the user for the intercepted single image, including changing the image size, changing the image quality, and the like.

In step S205, it is determined whether the user sets the loading fingerprint map, if yes, step S206 is performed, otherwise step S207 is performed.

In step S206, the fingerprint image is loaded, and the fingerprint image is superimposed on the single image of each frame intercepted above.

In step S207, a plurality of single images are encoded according to the system default GIF playback speed parameter to generate a target GIF file.

In step S208, the generated target GIF file is loaded into the memory.

If the user needs to preview the effect of the intercepted GIF, step S209 is executed to parse and play the target GIF file in the memory. When the user previews the playback effect of the generated target GIF file, the user can adjust the playback speed. In step S210, it is determined whether the user adjusts the playback speed. If yes, step S211 is performed; otherwise, step S212 is performed.

In step S211, the playback speed of the target GIF file in the memory is adjusted according to the adjusted GIF playback speed parameter of the user, and the process returns to step S209.

In step S212, it is determined whether the user adjusts the GIF generation parameter such as the video capture start point, the intercept length, and the GIF resolution. If the user adjusts the GIF generation parameter, the process returns to step S203, otherwise step S213 is performed.

In step S213, the user's target GIF file save instruction is received, and the final playback speed is written back to the original generated target GIF file.

As an embodiment of the present invention, after the target GIF file is generated, the target GIF file can be automatically copied to the clipboard, and the user can perform various operations by using the target GIF file, for example, directly paste the target GIF file into the chat of the instant messaging system. The window is propagated, and a shortcut key can be provided to the user to directly add the generated GIF to the chat emoticon of the instant messaging system.

FIG. 4 shows the structure of a media player provided by an embodiment of the present invention. For the convenience of description, only parts related to the embodiment of the present invention are shown.

The file parsing unit 41 parses the format of the input media file and determines the encoding format of the media file.

The audio/video separation and decoding unit 42 separates the audio and video data of the media file, and performs corresponding decoding processing on the audio and video data according to the encoding format of the media file obtained by the file parsing unit 41.

The video post-processing unit 43 performs video processing such as image rotation and highlighting on the decoded video data.

The audio post-processing unit 44 performs denoising, equalization, and the like on the decoded audio data. Reason.

The rendering unit 45 renders the audio and video data processed by the audio and video and outputs it to the sound card, video card, etc. for playback.

In the embodiment of the present invention, the interception of the video data to generate the target GIF file is mainly performed after the video playback of the media is decoded and before the rendering output, so that the GIF generation function can be integrated in the media player. As an embodiment of the present invention, the GIF generation subsystem 431 may be integrated in the video post-processing unit 43 to intercept the video data according to the GIF generation parameters set by the user to generate a target GIF file. Of course, the GIF generation subsystem 431 may also not be integrated in the video post-processing unit 43 as an independent functional unit in the media player.

In order to facilitate the user to browse the generated target GIF file, a GIF playing unit 46 may be added to the media player for parsing and playing the generated target GIF file. Of course, the GIF playback unit 46 may also not be integrated into the media player, such as browsing with a separate target GIF file playback tool.

FIG. 5 shows the structure of the GIF generation subsystem provided by the embodiment of the present invention. For the convenience of description, only parts related to the embodiment of the present invention are shown.

The GIF parameter control module 51 receives the user-set GIF generation parameters from the user interface, including the video capture start point, the intercept length, the frame interval, and the playback speed, and may also include image processing parameters or fingerprints. These GIF generation parameters affect the generated target GIF file.

During the playback of the media file, when the video frame extraction module 52 receives the GIF generation instruction of the user, the playback of the media file is stopped, and the GIF generation parameters such as the start point, the end point, and the frame interval of the intercepted video content selected by the user are used. The video frame is truncated into a single image.

In the embodiment of the present invention, if the user sets image processing parameters such as GIF resolution and image quality, the single image processing module 53 processes each single image according to the image processing parameters set by the user, including changing the GIF resolution. , image quality, etc.

As an embodiment of the present invention, if the user needs to superimpose the target GIF file The pattern, fingerprint overlay module 54 superimposes a user input or a previously set fingerprint onto each single image.

The GIF encoding module 55 encodes the intercepted single image according to the relevant GIF generation parameters set by the user to generate a target GIF file.

The target GIF file saving module 56 saves the generated target GIF file output.

In the embodiment of the present invention, the target GIF file may be generated by intercepting the video content of the media file according to the GIF generation parameter set by the user during the media playing process, and the user does not need to install and learn to use the special GIF file creation tool, and the operation flow is simple, and the user is convenient. use. The user can also conveniently preview the generated target GIF file, and adjust the target GIF file according to the preview. In addition, the user can also paste the target GIF file into the chat window of the instant messaging system for propagation, or add the target GIF file to the chat emoticon of the instant messaging system to enhance the user's communication fun.

The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. Within the scope.

Claims

Claim

A method for generating a GIF, the method comprising the steps of: receiving a GIF generation parameter set by a user;

2. The method of claim 1 wherein the method further comprises: saving the target GIF file.

3. The method of claim 1, wherein the GIF generation parameters include a video capture start point, a truncation length, a frame interval, and a play speed.

4. The method of claim 1, wherein the GIF generation parameters comprise image processing parameters;

Before encoding the single image to generate a target GIF file, the method further includes the following steps:

Image processing is performed on the single image according to image processing parameters set by the user.

5. The method according to claim 1, wherein the GIF generation parameter comprises a fingerprint map;

Before the single image is encoded according to the GIF generation parameter set by the user to generate the target GIF file, the method further includes the following steps:

A user-set fingerprint is superimposed on each single image.

6. A GIF generation system, the system comprising:

The GIF parameter control module is configured to receive a GIF generation parameter set by the user; the video frame extraction module is configured to: after receiving the GIF generation instruction of the user, stop the media file Playback, the video frame of the media file is intercepted into a single image according to the GIF generation parameter set by the user;

7. The system of claim 6, wherein the system further comprises: a GIF file saving module, configured to save the target GIF file.

8. The system of claim 6, wherein the GIF generation parameters include a video capture start point, a truncation length, a frame interval, and a play speed.

9. The system of claim 6, wherein the GIF generation parameters include image processing parameters,

The system also includes:

And an image processing module, configured to perform image processing on the single image according to image processing parameters set by a user.

10. The system of claim 6, wherein the GIF generation parameters include image processing parameters including a fingerprint map;

The system also includes:

A fingerprint loading module is used to superimpose a user-set fingerprint on each single image.

A media player, comprising a video post-processing unit, configured to perform video processing on the decoded video data, wherein the media player further includes a GIF generating subsystem configured to be configured according to a user. The GIF generates parameters, and the generated target GIF file is intercepted from the video data processed by the video post-processing unit image.

12. The media player of claim 11, wherein the GIF generation subsystem is integrated in the video post-processing unit or is an independent functional unit of the media player.

The media player according to claim 11 or 12, wherein the GIF generation subsystem comprises:

a GIF parameter control module, configured to receive a GIF generation instruction, where the GIF generation instruction includes a user-set GIF generation parameter;

a GIF encoding module, configured to encode the single image according to a user-set GIF generation parameter to generate a target GIF file;

A GIF file saving module for saving the target GIF file.

The media player according to claim 11 or 12, wherein the GIF generation parameter includes image processing parameters, and the GIF generation subsystem further includes:

The media player according to claim 11 or 12, wherein the GIF generation parameter comprises a fingerprint, and the GIF generation subsystem further comprises:

The media player according to claim 11 or 12, wherein the media player further comprises a GIF playing unit for parsing and playing the target GIF file.