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Audio and video synchronous processing device and method

A technology for audio and video synchronization and processing devices, applied in image communication, selective content distribution, electrical components, etc.

Inactive Publication Date: 2013-06-19
TVMINING BEIJING MEDIA TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this way, after several clips are stitched together, the time difference between the accumulated audio and video will be more obvious, resulting in a very obvious audio and video out of sync

Method used

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  • Audio and video synchronous processing device and method
  • Audio and video synchronous processing device and method

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Embodiment Construction

[0029] The present invention will be described below according to the embodiments shown in the accompanying drawings. The processing device involved in the embodiment of the present invention is used to intercept and combine multiple audio and video files to form a new audio and video file.

[0030] figure 2 A structural block diagram of an apparatus for merging and processing multiple video files involved in an embodiment of the present invention is shown. Such as figure 2 As shown, the above-mentioned multiple video file merging processing device includes an audio and video data receiving module 1 , a decapsulation module 2 , an audio and video data decoding module 3 , an encoding module 4 , an encapsulation module 5 , a storage module 6 and a data bus 7 . The above audio and video data receiving module 1 , decapsulation module 2 , audio and video data decoding module 3 , encoding module 4 , encapsulation module 5 and storage module 6 are connected through a data bus 7 ....

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Abstract

The invention provides an audio and video synchronous processing device which comprises a de-encapsulation device and an encapsulation device. The de-encapsulation device is used for analyzing different audio and video files into corresponding audio frame sequences and corresponding video frame sequences, the encapsulation device is used for adjusting a timestamp of an audio frame sequence and a video frame sequence of a previous order and a timestamp of an audio frame sequence and a video frame sequence of a latter order by acquiring the difference between the timestamp of the audio frame sequence and the video frame sequence of the previous order and the timestamp of the audio frame sequence and the video frame sequence of the latter order, so that the audio frame sequence and the video frame sequence of the previous order are synchronous with the audio frame sequence and the video frame sequence of the latter order, and the audio frame sequences and the video frame sequences are encapsulated after adjusted. The invention further provides an audio and video synchronous processing method.

Description

Technical field: [0001] The invention relates to the technical field of audio and video file processing, in particular to an audio and video synchronization processing device and method. technical background: [0002] When merging multiple video files, due to the inherent time difference between the video frame and the audio frame, the audio frame will be relatively advanced or delayed at the end of a file and the beginning of the next file. It will directly cause the audio and video to be out of sync when the video is played. Moreover, this "misalignment" phenomenon will have a cumulative effect. The more files are merged, the more obvious the phenomenon of audio and video out of sync will be. [0003] That is to say, in the processing of audio and video files, it is often necessary to intercept one or several segments from several audio and video files of different formats, and reassemble them into new audio and video files of a certain format. Therefore, when an audio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/434H04N21/4405H04N21/8547
Inventor 武悦
Owner TVMINING BEIJING MEDIA TECH
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