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Method for displaying subtitling in video

A video and subtitle technology, applied in the field of video display subtitles, can solve the problems of incomplete subtitle data, intermittent and so on.

Inactive Publication Date: 2010-02-17
神州亿品科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is relatively simple and consumes the least resources, but there are two disadvantages in this method: the first is that this method also relies heavily on the receiving device and because this method is non-standard, the receiving device must be customized; the second is that if the TS If there are not enough empty packets in the stream, the carried subtitle data may be incomplete or intermittent

Method used

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  • Method for displaying subtitling in video

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Embodiment Construction

[0017] In the present invention, subtitles are displayed in the video by replacing the bottom slice of the image in the video data with the subtitle data slice.

[0018] The detailed steps are as follows:

[0019] Step 1, preprocessing the first video data in PS (Program Stream, program stream) format to generate the second video data in PS format;

[0020] Step 2, analyzing the second video data to generate the third video data in ES (Elementary Stream, video elementary stream, that is, the coded data directly output by the encoder) format, and obtaining the parameters of the second video data;

[0021] Step 3: Multiplexing the third video data and the first subtitle data in ES format according to the parameter to generate fourth video data in ES format.

[0022] Such as figure 1 As shown, it is a flowchart of an embodiment of the method for displaying subtitles in a video according to the present invention, and the detailed steps are as follows:

[0023] Step 101, decodin...

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Abstract

The invention relates to a method of displaying caption in video that comprises: step 1, the first video dada in PS format is pretreated to generate the second video data in PS format; step 2, decoding the second video data to generate the third video data in ES format, and parameters of the second video data; step 3, the third video data and the first caption in ES format are multiplexed to generate the forth video data in ES format. The first caption data in ES format coded by the second caption data in word format based on parameter of said second video data is between Step 2 and step 3. The fifth video data which is packaged to TS format by the forth video data in ES format is included after step 3. So the invention does not decode video data in PS format, but also packages analysis and codes multiplexed data to realize the displaying caption in video conveniently.

Description

technical field [0001] The invention relates to a method for displaying subtitles in a video, in particular to a method for displaying subtitles in a video in a digital video broadcasting (Digital Video Broadcasting, DVB for short) system. Background technique [0002] Real-time multiplexing of subtitles in TS (Transport Stream) streams, that is, subtitles are usually displayed in videos, such as the insertion of real-time news. There are many ways to implement them, usually as follows: [0003] First, the input TS stream is decoded in real time, and frame-based YUV data is output; at the same time, the subtitles inserted in real time are extracted according to the character encoding, and then the subtitle data and the YUV data that need to be replaced in the TS stream are used for processing as needed, and the completion is completed. Multiplex, and then re-encode the data to output TS stream. This method is very cumbersome, with high time and economic costs. [0004] In ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/50H04N7/24H04N7/08
Inventor 杨云贵
Owner 神州亿品科技有限公司