Video editing method and system

A video editing and editing technology, which is applied in the field of audio and video editing, can solve the problems of online editing operation lagging, limited formats supported by browser players, and low work efficiency of editors, so as to improve fluency, facilitate self-inspection and Effects of troubleshooting and cost reduction

Pending Publication Date: 2021-04-13
BEIJING FUNSHION ONLINE TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 1. The audio and video materials provided by the audio and video producers are in various formats, and the requirements for editing players are relatively high, but the formats supported by the browser's built-in player are limited;
[0007] 2. Due to the disk read / write and bandwidth limitations of the storage server, as the number of online editors increases at the same time, online editing operations will become more and more stuck, resulting in lower work efficiency for editors

Method used

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  • Video editing method and system

Examples

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Embodiment 1

[0032] Such as figure 1 As shown, the embodiment of the present invention provides a video editing method, comprising the following steps:

[0033] Step 1, preprocessing the original audio and video files to be edited to obtain samples with a lower bit rate. A sample is a low-level version of the original audio and video file. It adopts a fixed package format, a fixed encoding standard, a proportional reduction in resolution, a lower frame rate, and a lower encoding quality. Therefore, the bit rate of the sample is much lower than that of the original audio and video file.

[0034] Specifically, there are many material packaging formats, such as mp4, flv, mpegts, webm, mpg, mkv, rmvb, avi, vob, rm, etc. There are many audio and video coding standards used in the material. Taking video coding standards as an example, there are h.261-h.264, hevc, av1, vp6-vp9, etc. Existing webpage players support relatively limited encapsulation formats and audio and video encoding standards....

Embodiment 2

[0045] An embodiment of the present invention provides a video editing system, including:

[0046] The preprocessing module is used to preprocess the original audio and video files to be edited to obtain samples with a lower bit rate;

[0047] The sample editing module is used to perform non-editing operations on the sample: for the editing operation, mark the sample playback time axis, and the editing system automatically records the editing time information; for the screen cutting operation, use a rectangular tool circle on the sample playback screen The editing system will automatically record the proportion information that needs to be cut out; for the mosaic operation, mark the mosaic time range on the sample playback time axis, and use the rectangle tool to circle the required area on the sample playback screen. In the mosaic area, the editing system automatically records the mosaic time information and position size ratio information; for the field effect and audio mixi...

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Abstract

The invention relates to a video editing method and system, and the method comprises the steps: firstly preprocessing a to-be-edited original audio and video file, and obtaining a sample with a lower code rate; carrying out non-editing operation on a sample wafer and recording non-editing operation information; and finally, collecting all non-coding parameters marked during non-coding of the sample, and executing non-coding and transcoding operations on the original audio and video file according to the non-coding parameters. The preprocessed sample wafer is used for editing, so that an existing webpage player can meet the playing requirement, the development and maintenance cost is reduced, and the fluency of editing operation and the working efficiency of editors are improved.

Description

technical field [0001] The invention relates to the technical field of audio and video editing, in particular to a video editing method and system. Background technique [0002] In order to ensure video quality, video producers usually provide video files with a very large bit rate, but video files with ultra-high bit rates are not suitable for transmission on the Internet, so Internet content providers usually perform a transcoding operation, using excellent The audio and video coding algorithm, under the premise of ensuring the audio and video quality, compresses and encodes the original audio and video files to save bandwidth and ensure that users can watch smoothly. [0003] Before transcoding, in order to ensure audio and video compliance and improve user experience, non-linear editing of audio and video is required. The operations include cutting out prohibited segments in the video, cutting off the upper and lower black borders, and mosaicing specific areas of the scr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/472
CPCH04N21/47205
Inventor 赵俊杰朱兵兵
Owner BEIJING FUNSHION ONLINE TECH LTD
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