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Hadoop-based ciphertext video stream processing method, device, server and system

A hadoop cluster and processing method technology, applied in Hadoop-based ciphertext video stream processing, devices, servers and systems, can solve the problem of high data integrity, inability to decrypt and play, inability to retrieve video-on-demand fast-forwarding, etc. problem, achieve the effect of ensuring integrity and solving ciphertext video retrieval

Inactive Publication Date: 2019-04-26
INST OF INFORMATION ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] (2) The data integrity of the ciphertext video is very high, once it is damaged, it will not be able to be decrypted and played;
[0007] (3) The time stamp information has been encrypted, so operations such as later retrieval and fast-forwarding during video-on-demand cannot be performed

Method used

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  • Hadoop-based ciphertext video stream processing method, device, server and system
  • Hadoop-based ciphertext video stream processing method, device, server and system
  • Hadoop-based ciphertext video stream processing method, device, server and system

Examples

Experimental program
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no. 1 example

[0047] figure 2 Shows a schematic flow diagram of the Hadoop-based ciphertext video stream processing method provided by the first embodiment of the present invention, as figure 2 As shown, the Hadoop-based ciphertext video stream processing method of this embodiment is as follows.

[0048] 201. Receive H.264 ciphertext video stream data sent by a network camera.

[0049] In a specific application, in the network camera, the ciphertext video stream is pushed to the network through the Real Time Streaming Protocol (RTSP for short), and the server uses the Transmission Control Protocol (Transmission Control Protocol, TCP for short) to obtain it through the network. The ciphertext video stream. In the H264 ciphertext video stream, the timestamp information is encrypted as data information, and the timestamp information cannot be obtained directly without decryption. Therefore, the timestamp-based video cannot be directly processed for the H264 format video file. Retrieval, t...

no. 2 example

[0067] Figure 4 A schematic structural diagram of the Hadoop-based ciphertext video stream processing device provided in the second embodiment is shown, as Figure 4 As shown, the Hadoop-based ciphertext video stream processing device 21 of the present embodiment includes: a format conversion module 21a, a timestamp adjustment module 21b and a key frame information extraction module 21c;

[0068] The format conversion module 21a is used to receive the H.264 ciphertext video stream data sent by the network camera, and utilize FFmpeg to convert the H.264 ciphertext video stream data into the first flv video stream data;

[0069] Timestamp adjustment module 21b is used for carrying out timestamp adjustment to the video file in the first flv video stream data, obtains the second flv video stream data, and stores the second flv video stream data in the distribution of Hadoop cluster In the formula file system HDFS, wherein, the first flv video stream data and the second flv video...

no. 3 example

[0081] Figure 5 shows a schematic structural diagram of a server provided by the third embodiment, as shown in Figure 5 As shown, the server 2 of this embodiment includes: the Hadoop-based ciphertext video stream processing device 21 described in the second embodiment.

[0082] The server in this embodiment can store and retrieve a large number of ciphertext videos and ensure their integrity.

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Abstract

The invention provides a hadoop-based ciphertext video flow processing method, a hadoop-based ciphertext video flow processing device, a server and a ciphertext video monitoring system. The method comprises receiving H.264 ciphertext video flow data sent by a network camera, converting the H.264 ciphertext video flow data into first flv video flow data by utilizing an FFmpeg, performing time stamp adjustment on a video file in the first flv video flow data, obtaining second flv video flow data, storing the second flv video flow data in an Hadoop cluster distributed file system (HDFS), obtaining key frame information of various video files in the second flv video flow data, and generating and storing a key frame information file; and the first and second flv video flow data respectively contain N video files, and the N is an integer greater than 1. The method can perform mass storage and retrieval on ciphertext video, and guarantee integrity of the ciphertext video.

Description

technical field [0001] The invention relates to the technical field, in particular to a Hadoop-based ciphertext video stream data processing method, device, server and ciphertext video monitoring system. Background technique [0002] With the rapid development of video coding technology and network technology, video conferencing, digital TV, video chat, online film and television, etc. have gradually become a part of people's daily life. Video conferencing is widely used due to its fast and real-time characteristics. However, these video services are vulnerable to human-made attacks in an open network environment, such as data interception, information theft, data tampering, and data addition and deletion. For the government, enterprise, military, security monitoring and other fields, the security requirements for video content are higher. How to ensure the security of video content is one of the current research focuses in the multimedia field. [0003] At present, authent...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/2343H04N21/6437H04N7/18H04N21/2347H04N21/8547
CPCH04N7/18H04N21/234309H04N21/2347H04N21/6437H04N21/8547
Inventor 陈玉成汪明伟芦翔龚慧芸魏振宇周新运孙利民
Owner INST OF INFORMATION ENG CHINESE ACAD OF SCI
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