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External subtitle redirection method and system based on DirectShow

A technology of plug-in subtitles and redirection, applied in image communication, selective content distribution, electrical components, etc., can solve problems such as inability to play plug-in subtitles

Active Publication Date: 2015-07-08
FUJIAN CENTM INFORMATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] One of the technical problems to be solved by the present invention is to provide a DirectShow-based external subtitle redirection method, in order to solve the problem that the existing multimedia redirection technology cannot play external subtitles

Method used

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  • External subtitle redirection method and system based on DirectShow
  • External subtitle redirection method and system based on DirectShow
  • External subtitle redirection method and system based on DirectShow

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Embodiment Construction

[0032] In order to make the present invention more comprehensible, a preferred embodiment is described in detail below in conjunction with the accompanying drawings.

[0033] Such as figure 2 As shown, the present invention is an improvement of the DirectShow framework based on multimedia redirection technology. The server includes Source Filer, Transform Filer, and Render Filer, while the client includes There are Source Filer (source filter), Transform Filer (transmission filter), DirectVobSub Filter (subtitle processing filter), Render Filer (rendering filter), video files and subtitle files are located in the server, through Source Filer (source Filter) Obtain the video file from the server, find the subtitle file through the file path of the video file and transfer it to a temporary directory on the client. At the same time, transfer the video file to the Transform Filer (transmission filter) for analysis. The video data in the video file is parsed into a data stream and se...

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Abstract

The invention provides an external subtitle redirection method based on DirectShow. The method includes the steps that step1, a subtitle file is obtained from a service side; step2, the subtitle file is transmitted to a client side; step3, a DirectVobSub Filter is loaded into a video playing link of the client side, and the directory path where the subtitle file is located is obtained through an interface of the DirectVobSub Filter; step4, the time stamp of each frame of video data in a video file of the client side is adjusted, and after subtitle data are added into the video data according to the time stamps, the adjusted video data are played through the video playing link of the client side. The invention further provides an external subtitle redirection system based on DirectShow. The problem that in a cloud computing environment, when a multimedia redirection technology is used for watching high-definition videos, external subtitles can not be loaded is solved.

Description

Technical field [0001] The present invention relates to the technical field of multimedia redirection, in particular to a method and system for redirecting external subtitles based on DirectShow. Background technique [0002] DirectShow is a set of development kits for streaming media processing on the Windows platform provided by Microsoft. It is a set of application systems based entirely on COM (Component Object Model). Its component modules are called Filter (filter) COM component, each Filter completes certain functions on the data stream. [0003] Existing technologies such as figure 1 As shown, the multimedia redirection technology uses the DirectShow framework. Both the server and the client contain Source Filer, Transform Filer, and Render Filer. The video file is located in the service. In the end, the video file in the server is obtained through the Source Filer (source filter), the video file is transferred to the Transform Filer (transmission filter) for analysis, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/488H04N21/8547H04N21/81
CPCH04N21/4884H04N21/8126H04N21/8547
Inventor 张辉张伟黎昌可
Owner FUJIAN CENTM INFORMATION
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