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Distributed video transcoding method

A video transcoding and distributed technology, applied in the direction of digital video signal modification, selective content distribution, image communication, etc., can solve the problems of linear growth of computing power, consumption of computing resources for video conversion work, high CPU usage, etc., to achieve expansion Effects of application range, shortening the time for repeated processing, and improving transcoding efficiency

Active Publication Date: 2015-09-23
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Video conversion consumes a lot of computing resources, and the CPU usage is high. When performing format conversion tasks, other tasks are difficult to handle. Therefore, it is necessary to separate the video transcoding job from the stand-alone system for processing.
Traditional video transcoding is centralized, which has great limitations when dealing with a large amount of video data, and its computing power is difficult to grow linearly with the amount of data.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0040] In order to verify the effect of the present invention, the present embodiment has made 6 different types of data sets, these data sets are made up of small video files of 200M in size, and the system is tested in two aspects of function and performance respectively, to prove the The effect of the system on video transcoding.

[0041] The collective experiment topology of this embodiment is as follows figure 2 As shown, each node and the Web server communicate through a switch. The hardware and software environment of the test experiment is as follows:

[0042] Hardware environment:

[0043] Computer Type: Desktop,

[0044] CPU: Pentium dual-core E5300 2.6GHz,

[0045] Memory: 4GB DDR-2 800MHz,

[0046] Hard disk: 320GB SATA-2,

[0047] Network card: 100Mbps Ethernet card;

[0048] Software Environment:

[0049] Operating system: Ubuntu12.04,

[0050] Java: Java 1.7.0_45,

[0051] Hadoop: Hadoop 1.0.4,

[0052] Xuggler: Xuggler5.2.

[0053] For the transcodi...

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Abstract

The invention provides a distributed large-scale video transcoding system, and belongs to the technical field of big data and video processing. According to the method, large-scale video transcoding is implemented through adoption of a distributed method on a big data processing platform Hadoop. In the method, large-scale video data is stored with an HDFS file system, distributed processing is performed with a MapReduce programming module, and processing of videos is implemented by means of a multimedia library Xuggler. The storage and transcoding of the large-scale video data are implemented with the expandability and stability characteristics of the distributed file system; the defects of high hardware requirement, difficulty in maintenance, difficulty in expansion and the like in the conventional centralized storage are overcome; and the ever-increasing storage and transcoding demands of the large-scale video data are met dynamically.

Description

technical field [0001] The invention belongs to the technical field of big data and video processing, and relates to the transcoding processing of massive videos on a distributed platform, in particular to a distributed-based large-scale video transcoding method. Background technique [0002] Due to the continuous development of the Internet and mobile phone networks, more and more media communication platforms have emerged. In addition, mobile phones generally have camera functions, and the use of portable cameras has become very common. The production and release of videos has become very simple. People produce a large amount of video data and share it on the Internet every day. At the same time, low-power camera sensor networks and video surveillance networks have also been widely used, making the new video data generated every day in a state of continuous growth. Due to the heterogeneity of the network and the diversity of terminal playback devices, it is often necessary...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/234H04N19/40H04N21/2343H04N19/30
CPCH04N21/23412H04N21/234309H04N21/234381
Inventor 董乐张宁
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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