Method for converting video format

A video format and format technology, applied in the video field, can solve problems such as the inability to use the Filter component, the user cannot control the Filter component, and a lot of time, so as to achieve the effect of being conducive to reuse and modification, and simple and efficient video format conversion.

Inactive Publication Date: 2011-07-13
TVMINING BEIJING MEDIA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If all the Filter components of the system are enumerated, the enumeration process takes a lot of time and the efficiency decreases
The user cannot control the selected Filter component and cannot use a specific Filter component

Method used

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  • Method for converting video format
  • Method for converting video format

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Embodiment Construction

[0021] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0022] The main idea of ​​the technical solution of the present invention is to use the Directshow technology to convert the video format. First, construct the FilterGraph, then set the Filter component parameters, and finally transcode. In this process, use the configuration file to guide the program to construct the FilterGraph and set the Filter component parameters.

[0023] figure 1 It is a flow chart of video format conversion in the specific implementation manner of the present invention. Such as figure 1 shown, including the following steps:

[0024] Step 101, generating a filter graph.

[0025] Step 102, read in the configuration file corresponding to the filter graph, and add filter components to the filter graph according to the configuration file. A filter component is a filter compo...

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PUM

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Abstract

The invention discloses a method for converting a video format, comprising the following steps of: generating a filter chart; reading in a configuration file corresponding to the filter chart; adding filter assemblies into the filter chart according to the configuration file; connecting the filter assemblies in the filter chart in sequence; setting the parameters for the filter assemblies in the filter chart according to the configuration file; and carrying out conversion on the packaging format of the video file and a video coding format. According to the technical scheme disclosed by the invention, the filter chart can be quickly and flexibly constructed, the filter assemblies are selected in the mode of revising the configuration file, and various collocations are adaptive to different video formats; the video format is simply efficiently converted without revising a source code and enumerating the filter assemblies; the parameters are set by using the configuration file, which is clear and easy to know and is favorable for reusing and revising.

Description

technical field [0001] The invention relates to the field of video technology, in particular to a video format conversion method. Background technique [0002] Video format conversion includes conversion of video file encapsulation format and conversion of video encoding format. The International Organization for Standardization has defined a variety of video coding standards and file packaging formats. When applying, it is often necessary to convert video formats according to user needs. [0003] At present, the Directshow technology is usually used for video format conversion on the windows platform. Directshow technology uses filter graph (FilterGraph) to control the video processing flow, and uses the filter (Filter) component that follows the com component specification to complete the data processing of various functions. However, each Filter component only supports a certain range of data formats, and it is necessary to use different Filter components to match each ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
Inventor 王建杨波
Owner TVMINING BEIJING MEDIA TECH
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