CN113326086B - GIF picture display method and device based on LVGL - Google Patents
GIF picture display method and device based on LVGL Download PDFInfo
- Publication number
- CN113326086B CN113326086B CN202110538004.5A CN202110538004A CN113326086B CN 113326086 B CN113326086 B CN 113326086B CN 202110538004 A CN202110538004 A CN 202110538004A CN 113326086 B CN113326086 B CN 113326086B
- Authority
- CN
- China
- Prior art keywords
- gif
- frame
- image
- lvgl
- file
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000006837 decompression Effects 0.000 claims abstract description 53
- 238000004806 packaging method and process Methods 0.000 claims description 15
- 238000009877 rendering Methods 0.000 claims description 10
- 239000003086 colorant Substances 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/451—Execution arrangements for user interfaces
Abstract
The application discloses a GIF picture display method based on LVGL. A GIF decompression library is added in an LVGL system framework; and the GIF decompression library is used for analyzing the attribute of the GIF file and decompressing each frame of image of the GIF picture. The entire RAW data of the GIF file is encapsulated into a first structure that the LVGL system framework can recognize. The LVGL system framework reads a certain file and identifies the file as a GIF file. And the LVGL system framework adopts a GIF decompression library to analyze the attributes of the GIF file. And decompressing the GIF picture by the LVGL system framework by adopting a GIF decompression library according to the attribute of the analyzed GIF file so as to obtain data of one frame of image. And the LVGL system framework encapsulates the data of the decompressed frame image of the GIF picture into an image control object in a bitmap format supported and displayed by the LVGL system framework, and the LVGL system framework renders and displays the image control object. The application expands the function of playing the GIF picture on the framework of the LVGL system.
Description
Technical Field
The present application relates to a GIF format animation display method of an electronic device employing an embedded system (embedded system).
Background
At present, two GUI schemes are mainly used for electronic devices adopting embedded systems, wherein an Android GUI system frame is used for high-end electronic devices, and a miniGUI system frame is used for low-end electronic devices. The android GUI system framework has a large code amount and cannot be stored in an electronic device with a limited storage space. The miniGUI system framework is old in function, not rich in picture effect and not small enough in code volume.
LVGL (Light and virtual Graphics Library) is a new GUI system framework, which has the advantages of small code amount and easy UI (user interface) development, and can load firmware of electronic devices with only 16MB of flash memory space. LVGL is a new emerging GUI system framework, however, and has not yet provided a complete solution to the needs of embedded systems, particularly children's watches, on the basis of which new functionality needs to be developed. For example, the LVGL system framework supports only the display of pictures in bitmap (bitmap) format, and the picture input source supported by the LVGL system framework is a C array (array) of bitmaps saved in 32-bit (32-bit) true color (true color) format. The 32-bit true color format refers to three bytes for three colors, respectively, the fourth byte for the alpha (alpha) channel, and 32 bits for one pixel. The LVGL system framework directly reads the picture input source into the memory for display without decompressing. The startup animation and the shutdown animation of the child watch are in a GIF format, and the LVGL system framework cannot display the animation (picture) in the GIF format at present.
Disclosure of Invention
The technical problem to be solved by the application is to provide a method for supporting display of an animation file in a GIF format based on an LVGL system framework.
In order to solve the above technical problem, the present application provides a GIF picture display method based on LVGL, including the following steps. Step S1: the electronic equipment adopts LVGL as a GUI system framework, and a GIF decompression library is added in the LVGL system framework; and the GIF decompression library is used for analyzing the attribute of the GIF file and decompressing each frame of image of the GIF picture. Step S2: packaging the whole original RAW data of the GIF file into a first structure body which can be identified by the LVGL system framework, and storing the first structure body into electronic equipment; there is a first parameter in the first structure indicating that the first byte or bytes of the file need to be read to identify the file type. Step S3: the LVGL system framework reads a certain file, reads one or more first bytes of the file through indication of a first parameter in a first structure body of the file, and identifies the file as a GIF file. Step S4: and the LVGL system framework adopts a GIF decompression library to analyze the attributes of the GIF file. Step S5: and decompressing the GIF picture by the LVGL system framework by adopting a GIF decompression library according to the attribute of the analyzed GIF file so as to obtain data of one frame of image. Step S6: the LVGL system framework encapsulates the data of the decompressed frame image of the GIF picture into an image control object of bitmap format supported and displayed by the LVGL system framework, and the LVGL system framework renders and displays the image control object; if the last frame image of the GIF picture has been presented, it is decompressed by the GIF decompression library back to step S5 to obtain data of a next frame image of the presented frame.
Further, in the step S4, the attributes of the parsed GIF file include one or more of the following items; (1) a logical screen description field of the GIF picture, including a width, a height, and the like of a background image rendering area; (2) a global color list; (3) LZW compressed description information; (4) the image descriptor of each frame of image data comprises four pieces of description information of left offset, upper offset, width and height of the frame of image data for positioning the position; (5) a local list of colors; (6) the graphics extension block information includes, among other things, the time interval from frame to frame.
Further, in step S5, if it is the first decompression of a GIF picture, the image data of the first frame of the GIF picture is obtained.
Further, in step S5, the image data of one frame is LZW decompressed by combining the LZW compressed description information, and then the color format of RGBA5658 is adopted to combine the image descriptor of the image data of the frame, where the description information includes four of left offset, top offset, width and height of the image of the frame for positioning, to calculate the bitmap data for rendering the layer, and create a memory space for the image of the frame, and store the bitmap data.
Further, in step S5, each frame of image data of the GIF picture is a binary stream compressed by LZW, and it can be pixel-filled according to colors in the global color list or the local color list by decompression; if the local color list mark is 1, the local color list is adopted by the frame image; if the local color list flag is 0, it indicates that the global color list is used for this frame of image.
Further, after the step S6 is completed, if the last image of the GIF picture is already displayed and the electronic device indicates that the playing mode of the GIF picture is only playing once, no operation is performed.
Further, after the step S6 is completed, if the last frame of image of the GIF picture is already displayed and the electronic device indicates that the playing mode of the GIF picture is the loop playing, the step S5 is returned to the step S5 to decompress the GIF picture by the GIF decompression library to obtain the data of the first frame of image.
Further, two threads are set, namely a main thread and a sub-thread; the main thread is used for rendering pictures for the LVGL system frame, and the sub-threads are used for decompressing the GIF pictures; timing a first time length for the sub thread by adopting a timer; when the first time length is reached, the sub-thread replaces the main thread to start to lead the electronic equipment, decompresses the GIF picture to obtain data of a new frame of image, then returns the leading right of the electronic equipment to the main thread, updates the first time length according to the time interval from the current frame to the next frame, and enables the timer to restart timing of the first time length.
Further, if the electronic device indicates that the GIF picture is played only once, the step S6 closes the sub thread after the last image of the GIF picture is displayed. If the electronic device indicates that the playing mode of the GIF picture is the loop playing, in the step S6, after the last frame of image of the GIF picture is displayed, the sub-thread continues to work, and decompresses the GIF picture to obtain the data of the first frame of image again.
The application also provides a GIF picture display device based on the LVGL, which comprises an adding unit, a file packaging unit, an identification unit, an analysis unit, a decompression unit and a frame packaging unit. The adding unit is used for adding a GIF decompression library in the LVGL system framework in the electronic equipment adopting the LVGL as the GUI system framework; and the GIF decompression library is used for analyzing the attribute of the GIF file and decompressing each frame of the GIF picture. The file packaging unit is used for packaging the whole RAW data of the GIF file into a first structure body which can be identified by the LVGL system framework and storing the first structure body into the electronic equipment; there is a first parameter in the first structure indicating that the first byte or bytes of the file need to be read to identify the file type. The identification unit is used for reading one or more first bytes of a certain file through the indication of a first parameter in the first structure body of the file when the LVGL system framework reads the file, and identifying the file as a GIF file. And the analysis unit is used for enabling the LVGL system framework to adopt the GIF decompression library to analyze the attribute of the GIF file. And the decompression unit is used for enabling the LVGL system framework to decompress the GIF picture by adopting a GIF decompression library according to the attribute of the analyzed GIF file so as to obtain data of one frame of image. The frame encapsulating unit is used for enabling the LVGL system frame to encapsulate data of a decompressed frame image of the GIF picture into an image control object of a bitmap format supported and displayed by the LVGL system frame, and the LVGL system frame renders and displays the image control object; and if the displayed image is not the last frame image of the GIF picture, the decompression unit is made to decompress the GIF picture by using the GIF decompression library to obtain the data of the next frame image of the displayed frame.
The technical effect that this application obtained is: the playing function of the GIF picture is expanded on the framework of the LVGL system with the minimum code volume. Through testing, the GIF picture playing effect of the startup animation and the shutdown animation is smooth, and the effect is as good as the experience of android implementation.
Drawings
Fig. 1 is a schematic flow chart of a GIF image display method based on LVGL according to the present application.
Fig. 2 is a schematic structural diagram of a GIF picture display device based on LVGL in the present application.
The reference numbers in the figures illustrate that: the device comprises an adding unit 1, a file packaging unit 2, an identifying unit 3, a parsing unit 4, a decompressing unit 5 and a frame packaging unit 6.
Detailed Description
Referring to fig. 1, the method for displaying a GIF picture based on LVGL of the present application includes the following steps.
Step S1: the electronic device adopts LVGL as a GUI system framework, and a GIF decompression library is added in the LVGL system framework. And the GIF decompression library is used for analyzing the attribute of the GIF file and decompressing each frame of the GIF picture.
Step S2: and packaging the whole RAW (original) data of the GIF file into a first structure body which can be identified by the LVGL system framework, and storing the first structure body in the electronic equipment. The first structure is originally supported by the LVGL system framework, and a first parameter in the first structure indicates that one or more first bytes of the file need to be read to identify the file type.
Step S3: the LVGL system framework reads a certain file, reads one or more bytes at the beginning of the file through the indication of a first parameter in a first structure body of the file, and identifies the file as a GIF file.
Step S4: and the LVGL system framework adopts a GIF decompression library to analyze the attributes of the GIF file.
The attributes of the GIF file parsed at this step include, for example, one or more of the following. (1) A logical screen description field of the GIF picture, wherein the logical screen description field comprises the width, height and the like of a background image rendering area; (2) a global color list; (3) LZW compressed description information; (4) the image descriptor of each frame of image data comprises four pieces of description information of left offset, upper offset, width and height of the frame of image data for positioning the position; (5) a local list of colors; (6) the graphics extension block information includes a frame-to-frame time interval.
Step S5: and decompressing the GIF picture by the LVGL system framework by adopting a GIF decompression library according to the attribute of the analyzed GIF file to obtain data of one frame of image. And if the decompression is performed on a certain GIF picture for the first time, obtaining the image data of the first frame of the GIF picture.
In each frame of image data of the GIF picture, the first byte is an LZW (Lempel-Ziv-Welch, bluewave-liff-guard encoding) minimum encoding size for data decoding. The second byte is the size of the image data, followed by the image data until the end of block.
The decompressing the GIF picture to obtain the data of one frame of image refers to: combining the description information of LZW compression to carry out LZW decompression on the image data of a frame, then combining the image descriptor of the image data of the frame by adopting the color format of RGBA5658, wherein the description information comprises four information used for positioning the left offset, the upper offset, the width and the height of the image of the frame, calculating the data of a bitmap used for rendering the layer, establishing a memory space for the image of the frame, and storing the bitmap data.
Each frame of image data of the GIF picture is a LZW-compressed binary stream, which can be pixel-filled by colors in a global color list or a local color list through decompression. If the local color list flag is 1, it indicates that the local color list is adopted by the frame image. If the local color list flag is 0, this indicates that the global color list is used for this frame of image.
Step S6: and the LVGL system framework encapsulates the data of the decompressed frame image of the GIF picture into an image control object of bitmap format supported and displayed by the LVGL system framework, and the LVGL system framework renders and displays the image control object. If the last frame image of the GIF picture is not already displayed, the GIF picture is decompressed by the GIF decompression library back to step S5 to obtain data of the next frame image of the displayed frame.
The GIF pictures are played in two modes, one mode is to play the pictures only once, and the playing is stopped from the first frame to the last frame of the GIF pictures; the other is loop playing, which means that after the first frame of the GIF picture is played to the last frame, the first frame of the GIF picture is returned to continue playing to the last frame, and the steps are repeated in a loop. The firmware or operating system of the electronic device determines the playing mode of the GIF picture.
After the step S6 is completed, if the last image of the GIF picture is displayed and the electronic device indicates that the GIF picture is played only once, no operation is performed, and the task of playing the GIF picture once is completed.
After the step S6 is completed, if the last frame of image of the GIF picture is displayed and the electronic device indicates that the playing mode of the GIF picture is the loop playing, the step S5 is returned to the step S5 to decompress the GIF picture by the GIF decompression library to obtain the data of the first frame of image.
Preferably, there are two threads, referred to herein as a main thread and a sub-thread, respectively. The main thread is used for rendering pictures for the LVGL system framework, and the sub-threads are used for decompressing the GIF pictures. And timing the first time length for the sub thread by adopting a timer. When the first duration reaches, the sub-thread replaces the main thread to start to lead the electronic device, decompresses the GIF picture to obtain data of a new frame of image, then returns the leading right of the electronic device to the main thread, updates the first duration according to the time interval from the current frame to the next frame (in the attribute of the GIF file analyzed in the step S4), and enables the timer to restart the timing of the first duration. The first duration, for example, corresponds to a presentation duration of each frame of the GIF picture.
If the electronic device indicates that the GIF picture is played only once, the step S6 closes the sub thread after displaying the last frame of image of the GIF picture.
If the electronic device indicates that the playing mode of the GIF picture is the loop playing, in the step S6, after the last frame of image of the GIF picture is displayed, the sub-thread continues to work, and decompresses the GIF picture to obtain the data of the first frame of image again.
Referring to fig. 2, the GIF picture display device based on LVGL of the present application includes an adding unit 1, a file encapsulating unit 2, an identifying unit 3, an analyzing unit 4, a decompressing unit 5, and a frame encapsulating unit 6. The apparatus shown in fig. 2 corresponds to the method shown in fig. 1.
The adding unit 1 is used for adding a GIF decompression library in an electronic device adopting the LVGL as a GUI system framework. And the GIF decompression library is used for analyzing the attribute of the GIF file and decompressing each frame of the GIF picture.
The file packaging unit 2 is used for packaging the whole RAW data of the GIF file into a first structure body which can be identified by the LVGL system framework and storing the first structure body into the electronic equipment. The first structure is originally supported by the LVGL system framework, and a first parameter in the first structure indicates that one or more first bytes of the file need to be read to identify the file type.
The identifying unit 3 is configured to, when a certain file is read by the LVGL system framework, read the first byte or bytes of the file through the indication of the first parameter in the first structure of the file, and identify that the file is a GIF file.
The parsing unit 4 is configured to enable the LVGL system framework to parse the attribute of the GIF file by using the GIF decompression library.
The decompression unit 5 is configured to enable the LVGL system framework to decompress the GIF picture by using the GIF decompression library according to the attribute of the parsed GIF file to obtain data of one frame of image. And if the decompression is performed on a certain GIF picture for the first time, obtaining the image data of the first frame of the GIF picture.
The frame encapsulating unit 6 is configured to enable the LVGL system framework to encapsulate data of a decompressed frame image of the GIF picture into an image control object in a bitmap format supported and displayed by the LVGL system framework, and the LVGL system framework renders and displays the image control object. If the last frame image of the GIF picture is not already displayed, the decompression unit 5 is made to decompress the GIF picture by using the GIF decompression library to obtain data of the next frame image of the displayed frame.
The method comprises the steps that a control for playing the GIF picture is not provided in the existing control of the LVGL system frame, the existing first structure body and the bitmap-format image control in the LVGL system frame are utilized, the GIF picture is integrally packaged into the first structure body, each frame image of the GIF picture is packaged into an object of the bitmap-format image control, and therefore the LVGL system frame supports the GIF picture playing.
The above are merely preferred embodiments of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (9)
1. A GIF picture display method based on LVGL is characterized by comprising the following steps;
step S1: the electronic equipment adopts LVGL as a GUI system framework, and a GIF decompression library is added in the LVGL system framework; the GIF decompression library is used for analyzing the attribute of the GIF file and decompressing each frame image of the GIF picture;
step S2: packaging the whole original RAW data of the GIF file into a first structure body which can be identified by the LVGL system framework, and storing the first structure body into electronic equipment; a first parameter in the first structure indicates that one or more first bytes of the file need to be read to identify the file type;
step S3: reading a certain file by the LVGL system framework, reading one or more first bytes of the file through the indication of a first parameter in a first structure body of the file, and identifying the file as a GIF file;
step S4: the LVGL system framework adopts a GIF decompression library to analyze the attributes of the GIF file;
step S5: the LVGL system framework adopts a GIF decompression library to decompress the GIF picture according to the analyzed attributes of the GIF file so as to obtain data of a frame of image; specifically, LZW decompression is performed on image data of a frame by combining description information of LZW compression, an image descriptor of the image data of the frame is combined by adopting a color format of RGBA5658, wherein the description information comprises four pieces of description information of left offset, upper offset, width and height of the image of the frame and is used for positioning the position, data used for rendering a bitmap of the layer is calculated, an internal memory space is newly established for the image of the frame, and the bitmap data is stored;
step S6: the LVGL system framework encapsulates the data of the decompressed frame image of the GIF picture into an image control object of bitmap format supported and displayed by the LVGL system framework, and the LVGL system framework renders and displays the image control object; if the last frame image of the GIF picture is not already displayed, the GIF picture is decompressed by the GIF decompression library back to step S5 to obtain data of the next frame image of the displayed frame.
2. The method for displaying GIF picture according to claim 1, wherein in step S4, the analyzed attributes of the GIF file include one or more of the following items; (1) a logical screen description field of the GIF picture, wherein the logical screen description field comprises the width, height and the like of a background image rendering area; (2) a global color list; (3) LZW compressed description information; (4) the image descriptor of each frame of image data comprises four pieces of description information of left offset, upper offset, width and height of the frame of image data for positioning the position; (5) a local color list; (6) the graphics extension block information includes a frame-to-frame time interval.
3. The method of claim 1, wherein in step S5, if a GIF picture is decompressed for the first time, image data of a first frame of the GIF picture is obtained.
4. The method of claim 1, wherein in step S5, each frame of image data of the GIF picture is a LZW compressed binary stream, which can be pixel-padded by decompression according to colors in the global color list or the local color list; if the local color list mark is 1, the local color list is adopted by the frame image; if the local color list flag is 0, this indicates that the global color list is used for this frame of image.
5. The method as claimed in claim 1, wherein after the step S6 is completed, if the last frame of image of the GIF picture is displayed and the electronic device indicates that the GIF picture is played only once, no operation is performed.
6. The method as claimed in claim 1, wherein after the step S6 is completed, if the last image of the GIF picture is displayed and the electronic device indicates that the GIF picture is played in a loop mode, the step S5 is returned to, and the GIF decompression library decompresses the GIF picture to obtain the data of the first image.
7. The LVGL-based GIF picture displaying method as claimed in claim 1, wherein two threads are provided, respectively called a main thread and a sub-thread; the main thread is used for rendering pictures for the LVGL system frame, and the sub-threads are used for decompressing the GIF pictures; timing a first time length for the sub thread by adopting a timer; when the first time length is reached, the sub-thread replaces the main thread to start to lead the electronic equipment, decompresses the GIF picture to obtain data of a new frame of image, then returns the leading right of the electronic equipment to the main thread, updates the first time length according to the time interval from the current frame to the next frame, and enables the timer to restart timing of the first time length.
8. The LVGL-based GIF picture displaying method of claim 7, wherein if the electronic device indicates that the playing mode of the GIF picture is played only once, said step S6 closes said sub-thread after displaying the last frame image of the GIF picture;
if the electronic device indicates that the playing mode of the GIF picture is the loop playing, after the last frame of image of the GIF picture is shown in the step S6, the sub-thread continues to work, and decompresses the GIF picture to obtain the data of the first frame of image again.
9. A GIF picture display device based on LVGL is characterized by comprising an adding unit, a file packaging unit, an identifying unit, an analyzing unit, a decompressing unit and a frame packaging unit;
the adding unit is used for adding a GIF decompression library in the LVGL system framework in the electronic equipment adopting the LVGL as the GUI system framework; the GIF decompression library is used for analyzing the attribute of the GIF file and decompressing each frame of the GIF picture;
the file packaging unit is used for packaging the whole RAW data of the GIF file into a first structure body which can be identified by the LVGL system framework and storing the first structure body into the electronic equipment; a first parameter in the first structure indicates that one or more first bytes of the file need to be read to identify the file type;
the identification unit is used for reading one or more first bytes of a certain file through the indication of a first parameter in a first structure body of the certain file when the LVGL system framework reads the certain file, and identifying the certain file as a GIF file;
the analysis unit is used for enabling the LVGL system framework to adopt a GIF decompression library to analyze the attribute of the GIF file;
the decompression unit is used for enabling the LVGL system framework to decompress the GIF picture by adopting a GIF decompression library according to the analyzed attributes of the GIF file so as to obtain data of a frame of image; specifically, LZW decompression is carried out on image data of a frame by combining description information of LZW compression, then an image descriptor of the image data of the frame is combined by adopting a color format of RGBA5658, wherein the description information comprises four pieces of description information of left offset, upper offset, width and height of the image of the frame and is used for positioning positions, data of a bitmap used for rendering a layer is calculated, a memory space is newly built for the image of the frame, and the bitmap data is stored;
the frame encapsulating unit is used for enabling the LVGL system frame to encapsulate data of a decompressed frame image of the GIF picture into an image control object of a bitmap format supported and displayed by the LVGL system frame, and the LVGL system frame renders and displays the image control object; and if the displayed image is not the last frame image of the GIF picture, the decompression unit is enabled to decompress the GIF picture by using the GIF decompression library to obtain the data of the next frame image of the displayed frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110538004.5A CN113326086B (en) | 2021-05-18 | 2021-05-18 | GIF picture display method and device based on LVGL |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110538004.5A CN113326086B (en) | 2021-05-18 | 2021-05-18 | GIF picture display method and device based on LVGL |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113326086A CN113326086A (en) | 2021-08-31 |
| CN113326086B true CN113326086B (en) | 2022-08-23 |
Family
ID=77415781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110538004.5A Active CN113326086B (en) | 2021-05-18 | 2021-05-18 | GIF picture display method and device based on LVGL |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113326086B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114119340A (en) * | 2021-10-18 | 2022-03-01 | 翱捷科技股份有限公司 | Method and device for managing activities of application based on LVGL |
| CN113986438B (en) * | 2021-10-30 | 2024-01-30 | 深圳市快易典教育科技有限公司 | Animation loading method, system, device and computer readable storage medium |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5949976A (en) * | 1996-09-30 | 1999-09-07 | Mci Communications Corporation | Computer performance monitoring and graphing tool |
| CN104519404A (en) * | 2013-09-29 | 2015-04-15 | 北京新媒传信科技有限公司 | Graphics interchange format file playing method and device |
| CN106383880A (en) * | 2016-09-13 | 2017-02-08 | 广州视睿电子科技有限公司 | GIF file playing method and system |
| CN107705340A (en) * | 2017-10-27 | 2018-02-16 | 郑州云海信息技术有限公司 | A kind of method and device of image decoding |
| CN107943417A (en) * | 2017-11-21 | 2018-04-20 | 广州市百果园网络科技有限公司 | Image processing method, terminal, computer-readable storage medium and computer program |
| CN109285197A (en) * | 2018-08-14 | 2019-01-29 | 四川虹美智能科技有限公司 | A kind of GIF image processing method and mobile terminal |
| CN110363701A (en) * | 2019-07-18 | 2019-10-22 | 腾讯科技（深圳）有限公司 | A kind of gif file display methods, device, terminal device and storage medium |
| CN112562022A (en) * | 2021-01-25 | 2021-03-26 | 翱捷科技股份有限公司 | Picture display method and system of electronic equipment |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6961905B1 (en) * | 2000-06-23 | 2005-11-01 | Microsoft Corporation | Method and system for modifying an image on a web page |
| US7348995B2 (en) * | 2005-06-09 | 2008-03-25 | International Business Machines Corporation | Method, apparatus and computer program product for implementing picture format conversion to X, Y plot |
| WO2013023287A1 (en) * | 2011-08-16 | 2013-02-21 | Destiny Software Productions Inc. | Script-based video rendering |
| CN102364441B (en) * | 2011-10-24 | 2017-12-05 | 中兴通讯股份有限公司 | The display methods of GIF pictures, apparatus and system |
| US9911223B2 (en) * | 2016-05-13 | 2018-03-06 | Yahoo Holdings, Inc. | Automatic video segment selection method and apparatus |
| CN106657836A (en) * | 2016-11-28 | 2017-05-10 | 合网络技术（北京）有限公司 | Method and device for making graphics interchange format chart |
-
2021
- 2021-05-18 CN CN202110538004.5A patent/CN113326086B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5949976A (en) * | 1996-09-30 | 1999-09-07 | Mci Communications Corporation | Computer performance monitoring and graphing tool |
| CN104519404A (en) * | 2013-09-29 | 2015-04-15 | 北京新媒传信科技有限公司 | Graphics interchange format file playing method and device |
| CN106383880A (en) * | 2016-09-13 | 2017-02-08 | 广州视睿电子科技有限公司 | GIF file playing method and system |
| CN107705340A (en) * | 2017-10-27 | 2018-02-16 | 郑州云海信息技术有限公司 | A kind of method and device of image decoding |
| CN107943417A (en) * | 2017-11-21 | 2018-04-20 | 广州市百果园网络科技有限公司 | Image processing method, terminal, computer-readable storage medium and computer program |
| CN109285197A (en) * | 2018-08-14 | 2019-01-29 | 四川虹美智能科技有限公司 | A kind of GIF image processing method and mobile terminal |
| CN110363701A (en) * | 2019-07-18 | 2019-10-22 | 腾讯科技（深圳）有限公司 | A kind of gif file display methods, device, terminal device and storage medium |
| CN112562022A (en) * | 2021-01-25 | 2021-03-26 | 翱捷科技股份有限公司 | Picture display method and system of electronic equipment |
Non-Patent Citations (2)
| Title |
|---|
| 《Flash动画的内容分析与特征提取研究》;刘磊;《万方智搜》;20080924;全文 * |
| 《Steganography based on least significant bit method was designed for digital image with lossless compression technique》;I Gede Wiryawan et al;《2018 International Conference on Signals and Systems (ICSigSys)》;20180607;全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113326086A (en) | 2021-08-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113326086B (en) | GIF picture display method and device based on LVGL | |
| CN109005426B (en) | Picture file processing method | |
| EP1628477A1 (en) | Reproduction device and program | |
| CN111193876B (en) | Method and device for adding special effect in video | |
| US8471861B2 (en) | Method and system for cost-efficient, high-resolution graphics/image display system | |
| CN111899322B (en) | Video processing method, animation rendering SDK, equipment and computer storage medium | |
| US20130212514A1 (en) | Method and Device for Displaying Start-Up Interface of Multimedia Terminal | |
| CN111522620B (en) | Full liquid crystal instrument of quick demonstration and high frame rate of rendering based on two process HMI | |
| US20180232128A1 (en) | Image reproduction apparatus and method for simultaneously displaying multiple moving-image thumbnails | |
| CN109089162B (en) | Picture file processing method and system | |
| CN109040789B (en) | Picture file processing method | |
| EP2058730A2 (en) | Image processing apparatus, image processing method, and image processing program | |
| CN109874048B (en) | Video window assembly semitransparent display method and device and computer equipment | |
| CN112929740B (en) | Method, device, storage medium and equipment for rendering video stream | |
| CN109327698A (en) | Dynamic previewing map generalization method, system, medium and electronic equipment | |
| KR20220143442A (en) | Method and apparatus for timed and event triggered updates in a scene | |
| CN112929590B (en) | Boot animation playing system, compression method and device, and decompression method and device | |
| CN108156414A (en) | WebRTC data-encoding schemes, equipment and computer readable storage medium | |
| CN113938572A (en) | Picture transmission method, display method, device, electronic equipment and storage medium | |
| CN113326085B (en) | JPEG format picture display method and system based on LVGL | |
| US20050086591A1 (en) | System, method, and apparatus for annotating compressed frames | |
| CN113014834B (en) | Picture subtitle display method and device and related device | |
| CN111899155B (en) | Video processing method, device, computer equipment and storage medium | |
| CN101702307A (en) | Image importing device and display device and updating device of imported image | |
| CN100521753C (en) | Screen display device with color circulation function and its display method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |