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Subtitle data processing method, device and equipment and computer storage medium

A technology of data processing and computer programs, applied in the direction of image communication, selective content distribution, electrical components, etc., can solve the problem of not supporting dvb_subtitle subtitles, reducing the flexibility and universality of media content transmission, and not supporting bitmap format subtitles, etc. question

Inactive Publication Date: 2020-05-12
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially in streaming media transmission protocols, FMP4 files are widely used; however, the current MPEG-4 standard supports subtitles only in text format, and cannot support bitmap format subtitles, which reduces the media content containing bitmap format subtitles. Transmission flexibility and universality; for example, dvb_subtitle subtitle is a subtitle service based on MPEG-2 standard, but MPEG-4 standard does not support dvb_subtitle subtitle

Method used

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  • Subtitle data processing method, device and equipment and computer storage medium
  • Subtitle data processing method, device and equipment and computer storage medium
  • Subtitle data processing method, device and equipment and computer storage medium

Examples

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no. 1 example

[0026] The first embodiment of the present invention proposes a subtitle data processing method, which can be applied to any network node transmitting media streams

[0027] figure 1 It is a flow chart of the subtitle data processing method of the embodiment of the present invention, as figure 1 As shown, the process can include:

[0028] Step 101: Obtain a media stream; the media stream carries subtitle information in bitmap format.

[0029] In practical applications, the media stream can be obtained from the media content provider; the format of the media stream can be User Datagram Protocol (User Datagram Protocol, UDP) format or HLS (HyperText Transfer Protocol Live Streaming) format; the media stream can be TS (Transport Stream) code stream, during actual implementation, the acquired media stream can be divided into multiple TS media fragment files, and in addition, the divided TS media fragment files can also be stored in the memory.

[0030] Here, the bitmap format s...

no. 2 example

[0073] In order to better reflect the purpose of the present invention, further illustrations are made on the basis of the first embodiment of the present invention.

[0074] In the second embodiment of the present invention, the implementation of the subtitle data processing method of the present invention is described through the following four examples.

example 1

[0075] Example 1: The incoming media stream is in UDP format, and the user requests HLS protocol services.

[0076] The subtitle data processing method in Example 1 may include:

[0077] Step A1: The incoming media stream adopts TS over UDP code stream. In practical applications, the media stream can be cut into multiple TS fragments and stored in the device memory.

[0078] Step A2: Read the media stream in each TS segment, and convert the read media stream into a file in MPEG-4 encapsulation format; for the dvb_subtitle format subtitle stream, use all the subtitle information corresponding to a certain moment, that is, a display set (display set) is processed in units. Specifically, a display set includes all data segment collections from the display definition segment (display definition segment) data segment to the end of display set segment (end of display set segment) data segment, display definition segment data segment, pagecomposition segment data segment , region com...

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Abstract

The embodiment of the invention provides a subtitle data processing method, device and equipment, and a computer storage medium. The method comprises the steps of obtaining a media stream, wherein themedia stream carries bitmap format subtitle information; and converting the media stream into a file in an MPEG-4 packaging format, and storing the bitmap format subtitle information in a non-standard data track of the file in the MPEG-4 packaging format.

Description

technical field [0001] Embodiments of the present invention relate to but are not limited to subtitle information processing technology in multimedia communication, and particularly relate to a subtitle data processing method, device, device and computer storage medium, which can be applied to Moving Picture Experts Group (Moving Picture Experts Group-4, MPEG- 4) Multimedia encapsulation and digital video broadcasting (Digital Video Broadcasting, dvb)_subtitle subtitle information processing. Background technique [0002] For media services in multi-ethnic and multilingual regions, in order to meet the needs of residents for voice and subtitles in different cultural backgrounds, media content providers need to provide multilingual information in a set of programs, and users can choose subtitles as needed; for example, in Domestic minority settlements, and overseas multilingual countries. In addition, in order to cover a wider user group, media content providers can also pro...

Claims

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Application Information

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IPC IPC(8): H04N21/235H04N21/435H04N21/488H04N21/845
CPCH04N21/2355H04N21/4355H04N21/4884H04N21/8456H04N21/235H04N21/488H04N21/435H04N21/845H04N21/434H04N21/2362
Inventor 白雅贤张晓渠丁向军
Owner ZTE CORP
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