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A user terminal playback method for on-demand system simulation

A technology of user terminal and playback method, which is applied in the direction of image communication, selective content distribution, electrical components, etc., and can solve problems such as high cost and difficult system testing

Inactive Publication Date: 2016-01-13
BEIJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because it is difficult and expensive to test the system in the actual network environment, in this case, computer simulation becomes an effective solution

Method used

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  • A user terminal playback method for on-demand system simulation
  • A user terminal playback method for on-demand system simulation
  • A user terminal playback method for on-demand system simulation

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Embodiment Construction

[0050] The present invention is further described below in conjunction with embodiment. The scope of the present invention is not limited by these examples, and the scope of the present invention is set forth in the claims.

[0051] Firstly, it introduces the conceptual background related to streaming media, then analyzes the interactive user behavior model, and finally defines the variables appearing in the playback model, elaborates the patented user terminal playback model, and gives the calculation of program startup time using raw data. A method for extending and program playing continuity.

[0052] 1. Relevant background definition:

[0053] 1. Definition of media data blocks

[0054] In the literature "Research on PPStream Network TV System Based on Network Measurement", author: Li Dailing, master's thesis. 2008.6 pages 5-6, a media video file is divided into N (N> 0) fixed-size BufferMessage blocks, referred to as BM data block. Each BM is divided into M (M>0) part...

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Abstract

The invention relates to a user terminal playing method for simulation of a video-on-demand system, which includes the steps of (1) configuring model parameters at first, (1.1) applying access hypothesis to probability of a VCR (video cassette recorder) action transferring model, namely setting values of Prplay (probability ratio of play), Prabort (probability ratio of abort), Prjf (probability ratio of jump forth) and Prjb (probability ratio of jump back), and meeting the formula: Prplay + Prabort + Prjf + Prjb =1; (1.2) applying access data to parameters in a model of the VCR in action state, namely setting the parameters of a playing time and a skipping duration time; (2) dividing the whole video playing process into two stages of data preparing and playing; (3)calculating performance indexes, finishing simulation, and utilizing original data of the performance indexes acquired by the model to calculate two user side performance indexes including program enablement time delay and program playing sequence degree, storing the original data acquired during a simulation process into a database, and then calculating via the database platform. The two indexes mainly reflect watching experience of users and enable users to obtain better simulation watching experience.

Description

technical field [0001] The invention relates to a multimedia playing simulation method based on mathematical calculation, in particular to the technical field of multimedia player simulation which belongs to the field of computer simulation. Background technique [0002] Computer simulation is a technology for digitally simulating the operation process or state of complex real systems with the help of high-speed, large-storage digital computers and related technologies. With the development of science and technology today, the research on complex real systems is expensive and difficult to realize, so it is necessary to introduce computer simulation. [0003] In recent years, with the development of the Internet and the popularization of broadband applications, streaming media services have become the "killer" services in network applications, such as live broadcast and on-demand services. When researching streaming media systems, researchers often pay attention to some main...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/433H04N21/438
Inventor 双锴覃国旗徐鹏王玉龙于晓燕苏森
Owner BEIJING UNIV OF POSTS & TELECOMM