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Streaming media file accurate editing method and device

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

Active Publication Date: 2020-11-10
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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  • Streaming media file accurate editing method and device
  • Streaming media file accurate editing method and device
  • Streaming media file accurate editing method and device

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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 particularly provides a streaming media file accurate editing method and device, and the method comprises the steps: obtaining the data information of a to-be-edited streaming media file and editing start and stop time T1 and T2; skipping a file handle to the I frame of the image group GOP corresponding to the T1, andstarting to read the audio and video frames of the streaming media file; wherein the video and audio frame display time t1 and t2 is less than T1, decoding the video frame and discarding the generatedYUV original data, directly discarding the audio frame, and reading the next frame of media data; and when the video and audio frame display time t1 and t2 is greater than T2, discarding the frame, updating and perfecting the header information of the target file DstFile, writing the header information into the end of the file, and completing editing of the streaming media file. According to thescheme, a video is continuously decoded, and the inter-frame dependency relationship is kept. By comparing the audio and video display time, accurate audio and video editing is realized. the inventionis not limited by media file formats, and is higher in precision and wide in application range compared with an existing mainstream video editing tool.

Description

technical field [0001] The invention belongs to the technical field of audio and video multimedia, and in particular relates to a method and device 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,...

Claims

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Application Information

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Patent Type & Authority Applications(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