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Method and device for extracting voice frequency and subtitles according to language

A subtitle and audio technology, applied in the field of extracting audio and subtitles according to language, can solve the problems of video formats that do not support multi-streaming, and achieve the effect of strong applicability and improved experience.

Inactive Publication Date: 2015-07-08
WUXI TVMINING MEDIA SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing video decoding tools can only enter a single stream and output a single stream, and do not support multi-stream video formats

Method used

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  • Method and device for extracting voice frequency and subtitles according to language
  • Method and device for extracting voice frequency and subtitles according to language
  • Method and device for extracting voice frequency and subtitles according to language

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Embodiment Construction

[0040] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0041] figure 1 It is a flowchart of a method for extracting audio and subtitles according to language in an embodiment of the present invention, such as figure 1 As shown in , the method includes the following steps:

[0042] Step S101: decapsulating the video file with multiple channels of audio and subtitles to obtain video data and mixed stored multiple channels of audio data and multiple channels of subtitle data;

[0043] Step S102: According to the format of the video file with multiple channels of audio and subtitles, obtain the language information of each channel of audio and each channel of subtitles from the information header of the video file with mul...

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Abstract

The invention discloses a method and a device for extracting voice frequency and subtitles according to a language, is used for extracting one channel of the voice frequency and the subtitles of the designated language from a video file with multiple channels of the voice frequency and the subtitles, and the aim that a multi-thread video is converted into a single-thread video is achieved. The method comprises the following steps that decapsulation is carried out on the video file with the multiple channels of the voice frequency and the subtitles, and video data and the mixed stored multiple channels of the voice frequency and multiple channels of the subtitles are obtained; according to a format of the video file with the multiple channels of the voice frequency and the subtitles, language information of each channel of the voice frequency and each channel of the subtitles are obtained from information of the video file with the multiple channels of the voice frequency and the subtitles; according to the language information of each channel of the voice frequency and each channel of the subtitles, the voice frequency data and subtitle data of the designated language are extracted from the mixed stored multiple channels of the voice frequency and the multiple channels of the subtitle data; the voice frequency data and the subtitle data of the designated language are combined with the video data. According to the method, the aim that the multi-thread video is converted into the single-thread video is achieved.

Description

technical field [0001] The invention relates to the field of multimedia technology, in particular to a method and device for extracting audio and subtitles according to language. Background technique [0002] With the rapid development of network video, it is often necessary to decode and then re-encode and package existing video files to obtain a video file in a format that can be played by a local player or a current video website. At present, video file formats mainly include FLV, DV, MP4, MKV, MOV, TS, 3GP, etc. Among them, video and audio in these formats such as FLV, DV, and MP4 are two streams, and each is a single stream. In MKV, MOV, and TS formats, video and audio can be multiple streams, and MKV can also have multiple subtitle streams. However, the existing video decoding tools can only enter a single stream and output a single stream, and do not support multi-stream video formats. Therefore, there is a need for a solution that can convert a multi-stream video f...

Claims

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Application Information

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IPC IPC(8): H04N21/434
CPCH04N21/4341H04N21/4348
Inventor 彭岳松
Owner WUXI TVMINING MEDIA SCI & TECH
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