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A method for precise editing of streaming media files

A streaming media and file technology, applied in the field of precise editing of streaming media files, can solve the problem of large editing errors of streaming media files, and achieve the effect of wide application range, high precision, and maintaining inter-frame dependencies.

Active Publication Date: 2022-02-18
WUHAN SOUTH SAGITTARIUS INTEGRATION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the invention is to overcome the problem of large editing errors of streaming media files in the prior art

Method used

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  • A method for precise editing of streaming media files
  • A method for precise editing of streaming media files
  • A method for precise editing of streaming media files

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] In describing the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", The orientations or positional relationships indicated by "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than in...

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Abstract

The invention belongs to the technical field of audio and video multimedia, and specifically provides a method for precise editing of streaming media files, which obtains data information of streaming media files to be edited and the start and end times T1 and T2 of editing; jumps the file handle to I of the image group GOP corresponding to T1 frame, start to read the audio and video frames of the streaming media file; the display time t1 and t2 of the video and audio frames are less than T1, the video frame is decoded and the generated YUV original data is discarded, the audio frame is directly discarded, and the next frame of media data is read; When the audio frame display time t1, t2 is greater than T2, discard this frame, update and perfect the header information of the target file DstFile, write the end of the file, and complete the clipping of the streaming media file. The scheme continuously decodes video, maintaining inter-frame dependencies. Accurate audio and video editing can be achieved by comparing the display time of audio and video; unlimited media file formats, higher precision than current mainstream video editing tools, and a wide range of applications.

Description

technical field [0001] The invention belongs to the technical field of audio and video multimedia, and in particular relates to a method for precise editing of streaming media files. Background technique [0002] With the rapid development of network communication technology, various applications based on streaming media such as video surveillance, video conferencing, short video, and Internet TV and movies can be seen everywhere. Streaming media is a technology and process that transmits compressed audio and video data, text data, etc. in the form of water streams on the network in real time. This technology greatly improves the real-time performance of live webcasting. Without this technology, watching The entire media file must be downloaded. Streaming media files are the recording and storage of streaming media data, and the common file formats are MP4, FLV, AVI, etc. [0003] In order to reduce the bandwidth occupation of video data in network transmission, the video ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/439H04N21/44H04N21/4402H04N21/854H04N21/8547H04N19/177
CPCH04N21/8547H04N21/4402H04N21/44H04N21/439H04N21/85406H04N19/177
Inventor 胡一凡张宇周继波殷力陈洋
Owner WUHAN SOUTH SAGITTARIUS INTEGRATION CO LTD