Implementation method for storing and playing back multimedia objects

An object storage and multimedia technology, applied in the multimedia field, can solve the problems of large space occupation and high CPU occupancy rate, and achieve the effect of small space occupation and low CPU occupancy rate

Inactive Publication Date: 2012-01-04
RETURNSTAR INTERACTIVE TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current multimedia storage and playback technology is limited to the method of screen capture. The data stored in the screen capture method is usually in the form of pictures, which takes up a lot of space and has a high CPU occupancy rate.

Method used

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  • Implementation method for storing and playing back multimedia objects
  • Implementation method for storing and playing back multimedia objects

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0018] The present invention is achieved in that a method for realizing multimedia object storage and playback comprises the following steps:

[0019] Step 10, create a project project, in the project project, create a canvas window; the present embodiment uses Delphi 7 for development, but the present invention is not limited thereto, other software development platforms can also be used.

[0020] Step 20, set up the required multimedia object class:

[0021] Object creation class: used to save a copy when recording multimedia object creation;

[0022] Object movement class: used to record the pixel offset when the selected multimedia object is moved;

[0023] Object scaling class: used to record the pixel offset when the selected multimedia object is scaled;

[0024] Object rotation class: used to record the pixel offset when the selected multimedia object is rotated;

[0025] Object deletion class: used to record the serial number of the deleted multimedia object in the ...

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Abstract

The invention provides an implementation method for storing and playing back multimedia objects, comprising the following steps of: step 10, creating a project, and creating a canvas window in the project; step 20, creating required multimedia object classes: namely object creation classes, object migration classes, object scaling classes, object rotation classes and object cancellation classes; step 30, storing corresponding data structures of the multimedia object classes respectively according to the time sequence of object operations; and step 40, when the multimedia files are required to be played back, creating a playback thread, reading the stored data one by one according to the time sequence, analyzing the data structures, and drawing by using a 2D drawing library of an operating system in the canvas window. The required multimedia object classes are created to store the corresponding class data structures according to the time sequence of object operations, and the thread is created to play back frame by frame according to the operation time, thus less space is occupied, and the occupation ratio of a CPU (central processing unit) is lower.

Description

【Technical field】 [0001] The invention relates to a multimedia technology, in particular to a method for realizing storage and playback of multimedia objects. 【Background technique】 [0002] With the development and popularization of computer multimedia technology and electronic whiteboard, electronic whiteboard gradually replaces traditional blackboard in the process of modern teaching and meeting. The multimedia effect produced by computer technology can significantly improve the quality of teaching and the effect of meeting. The storage and playback of these multimedia can deepen the understanding and memory of the content of teaching and conferences. However, the current multimedia storage and playback technology is limited to the method of screen capture. The data stored in the screen capture method is usually in the form of pictures, which takes up a lot of space and has a high CPU occupancy rate. 【Content of invention】 [0003] The technical problem to be solved by...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30G06F9/44
Inventor 丁万年廖强何永安陈日良
Owner RETURNSTAR INTERACTIVE TECH GRP
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