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

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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

CN104754273AInactive Publication Date: 2015-07-01夏曹俊 +1

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[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...

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Application Information

Patent Timeline

01 Jul 2015

Publication

CN104754273A

IPC: H04N5/781

Inventors: 夏曹俊; 蔡泳