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Algorithm used for data storage and synchronous playback display of multiple cameras

A multi-camera, synchronous playback technology, applied in the field of algorithms, can solve the problems of affecting the service life of the disk, large memory consumption, and short storage time

Inactive Publication Date: 2015-07-01
夏曹俊 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is convenient to only store in memory, but the memory consumption is relatively large and the storage time is relatively short
Only stored on the disk can store a large amount of data, but it will continue to write to the disk, which greatly affects the service life of the disk

Method used

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  • Algorithm used for data storage and synchronous playback display of multiple cameras
  • Algorithm used for data storage and synchronous playback display of multiple cameras
  • Algorithm used for data storage and synchronous playback display of multiple cameras

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Experimental program
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Embodiment Construction

[0011] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings.

[0012] See attached figure 1 , the video data is sent to the data computer through the data stream (active call), after the computer receives the data, it judges whether the received data is complete or not, if it is not complete, continue to wait until the data is complete. Write a frame information structure SaveData as follows:

[0013] struct SaveData

[0014] {

[0015] BYTE *pBuffer;

[0016] long long file pos;

[0017] DWORD dwBufSize;

[0018] char type; / / 0 Cache 1 Hard disk

[0019] int sec;

[0020] int mis;

[0021]};

[0022] After receiving a complete frame of data, save the video frame data with the same frame position (reserved, for storage on the hard disk), frame size, storage medium, current second, and current milliseconds into the structure, and then put the structure into ...

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Abstract

The invention discloses an algorithm used for data storage and synchronous playback display of multiple cameras. Software logs into and is connected with the cameras when started, the cameras can convert images collected in real time into data streams to be sent back to a computer; when the computer receives a complete frame and stores the frame, the storage time, mode and position of the frame are recorded in a structure body.

Description

technical field [0001] The invention relates to an algorithm, in particular to an algorithm for multi-camera data storage and synchronous playback display. Background technique [0002] With the advancement of technology, the increase of network transmission speed, and the improvement of hardware conditions, sometimes it is necessary to use multiple cameras to observe an object from multiple angles, and record the image of the object into a video. The storage method of the digital signal transmitted by the camera and how to synchronously playback and display the storage method have become a problem. [0003] Most of the current video storage methods are directly stored and extracted according to the data frame after receiving the data frame. If there is a data frame loss or the number of data frames received per second is different, it will cause the picture to be out of sync, and it will be out of sync as the display time increases. The phenomenon will become more and more...

Claims

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Application Information

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IPC IPC(8): H04N5/781
Inventor 夏曹俊蔡泳
Owner 夏曹俊
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