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Compression, storage and playback method of screen recording and compression and storage system

A technology for screen recording and screen recording, which is applied in the field of screen recording compression and storage systems, and can solve problems such as inability to open, large files, etc.

Active Publication Date: 2016-05-25
SHANGHAI YISAIQI SOFTWARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing screen recording basically captures desktop pictures, and combines the pictures into AVI, GIF, HSR-based files for storage; it is only suitable for short-term recording, and when the recording reaches several hours, the file will be too large to open

Method used

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  • Compression, storage and playback method of screen recording and compression and storage system

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Experimental program
Comparison scheme
Effect test

Embodiment

[0096] Step One: Install the Hook

[0097] Use the Windows API to install hooks with the SetWindowsHookEx function. When the user logs in to the desktop, the mouse bottom hook, keyboard bottom hook, system message hook, message queue hook, and dialog box message hook are injected into all programs in the current session, including the applications opened later. is injected.

[0098] Step 2: Initialize parameters

[0099] Initialize the full-screen frame capture frequency FSI, the window frame capture frequency WSI, and the file write frequency WFI;

[0100] Step 3: Initialize the file

[0101] For FBS files: the time offset of the record window change, the changed image data;

[0102] For FBK files: record the time offset of the full-screen frame file, full-screen image data;

[0103] For FBI files: record the offset time of the full screen frame, the start and end position of the full screen frame file FBK; the offset time of the window change frame file FBS, the start and ...

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PUM

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Abstract

The invention discloses a screen video record compression, storage and playback method. According to the method, the change of a screen is monitored through global Hooks of a system, an image is compressed in a high-sensing manner, and data is stored in a frame-buffer manner. A full-screen frame file FBK, a regional change frame file FBS and a change frame index file FBI are used for recording the change of the whole screen according to offset time. When compressed sensing is adopted for sampling, the image can be randomly sampled directly to obtain a small amount of sampling values, the sampling values are quantitatively encoded for storage, and position information of each effective value does not need to be recorded for encoding, so that the calculation complexity is greatly lowered, the storage space is greatly reduced, and low-speed sampling is realized in performance. The invention further proposes a screen video record compression and storage system.

Description

technical field [0001] The invention belongs to the technical field of image storage, and in particular relates to a method for compressing, storing and replaying screen recordings, and a system for compressing and storing screen recordings. Background technique [0002] Screen recording is a technology for graphically monitoring the terminal platform and recording the operation behavior of the client. The recorded data can be stored for a long time, and the monitor can retrieve the recorded files at any time according to the content they need. For The retrieved results can quickly locate the image frames that meet the conditions, so as to obtain the on-site image information in time and completely reproduce the operation scene at that time. Existing screen recording basically captures desktop pictures, and combines the pictures into AVI, GIF, HSR-based files for storage; it is only suitable for short-term recording, and when the recording reaches several hours, the file wil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/30
CPCG06F16/1744
Inventor 林平胡立军吴鑫唐琦松黄鸣鹤
Owner SHANGHAI YISAIQI SOFTWARE CO LTD