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Method and system for dynamically pushing data

A data dynamic and data technology, applied in the field of streaming media, can solve the problems of unsmooth video playback and insufficient data volume, and achieve the effect of overcoming unsmooth playback.

Active Publication Date: 2013-06-19
CHINA TELECOM CORP LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the picture changes greatly, the actual bit rate required will increase, but since the push speed remains unchanged, the amount of data will be insufficient, resulting in the problem of unsmooth video playback

Method used

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  • Method and system for dynamically pushing data
  • Method and system for dynamically pushing data
  • Method and system for dynamically pushing data

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Embodiment Construction

[0035] The present invention will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are illustrated.

[0036] figure 1 It shows the corresponding relationship between data block ID, SRC, Duration and playing time in ASF format data. For streaming media files encoded based on the MMS protocol, each data block has a data block ID, which is used to identify the playing sequence of each data block. Such as figure 1 As shown, the playing time of a video based on the MMS protocol is 30 seconds, and is divided into 8 ASF data blocks, and each data block has its own ID (such as figure 1 The numbers 1-8 in), SRC (abbreviation of Source, such as figure 1 The character "S" in ) and Duration (such as figure 1 The character "D" in ); wherein, SRC represents the play timestamp of the current data block based on the revelation play time axis, and Duration represents the duration of the current data block play....

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Abstract

The invention discloses a method and system for dynamically pushing data. The method comprises the following steps: acquiring a start play time stamp and play duration of each data block of streaming media data; building a mapping table of the start play time stamps of the data blocks and data block identifications (IDs); according to a start play time stamp and play duration of an existing data block, acquiring a start play time stamp for pushing a next data block; searching data block ID corresponding to the start play time stamp of the next data block in the mapping table by the start playtime stamp of the next data block, and determining a next data block to be pushed; and after a waiting time is determined in accordance with the play duration, pushing the next data block to a player. According to the invention, the play time stamp and the play duration of the existing data block are acquired, and a pushing time for pushing the next data block by a pusher is controlled based on the above two parameters of the play time stamp and the play duration, thus realizing dynamic pushing and smooth playing for decoded data of dynamic code rate.

Description

technical field [0001] The invention relates to the technical field of streaming media, in particular to a method and system for dynamically pushing data. Background technique [0002] Streaming media is a media format played on the Internet / Intranet in a streaming manner. Streaming transmission parses the entire audio / video and 3D media and other multimedia files into compressed packets through a specific compression method, and transmits them sequentially or in real time from the video server to the user's computer. The client can play the video without downloading the full video. Compared with the simple download method, the streaming transmission method of downloading and playing multimedia files can greatly shorten the start-up delay, greatly reduce the demand for system cache capacity, and can greatly reduce user waiting time. [0003] Microsoft Streaming Media Service (MMS, Microsoft Media Service) is a network streaming media protocol developed by Microsoft Corpora...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/438H04N21/8547
Inventor 龙斌黄海武娟庞涛张志健梁洁
Owner CHINA TELECOM CORP LTD
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