Audio and video clipping method and device

Abstract

The invention discloses an audio and video clipping method and device, wherein the method comprises the steps: obtaining a to-be-clipped audio and video file and in-out point data, carrying out segmentation of the to-be-clipped audio and video file according to an HLS protocol specification, and determining a first clipping segment serial number where the in-point time is located and a second clipping segment serial number where the out-point time is located according to the in-out point data of the to-be-clipped audio and video file; and taking the position of the in-point time in the audio and video segment file corresponding to the first clipping segment serial number as a starting point, taking the position of the out-point time in the audio and video segment file corresponding to thesecond clipping segment serial number as an ending point, and combining all the audio and video segment files between the starting point and the ending point to obtain a clipped target audio and videofile. The audio and video segment file appointed in an HLS protocol is generally about 10 seconds, so that the longest recoding time is the longest segment time of a single chip of the current HLS index file, the accurate clipping of the audio and video file is realized, the audio and video clipping time consumption is reduced, and the clipping efficiency is improved.

Description

technical field [0001] The present invention relates to the technical field of video processing, and more specifically, to an audio and video clipping method and device. Background technique [0002] Traditional audio and video clipping is mainly based on the C / S architecture. The method is: install the audio and video nonlinear editing system software on the user client, and after importing the audio and video to be trimmed into the system, the corresponding index file will be generated in the background (generally record key frame data), when the user submits the in-out point data (i.e., the start time point and the end time point) of the audio and video clipping, the audio and video clipping function is started, and the audio and video nonlinear editing system uses the in-out point data from the audio and video to be clipped Cut out the audio and video clip where the in-out point data is located. Although the accuracy of audio and video clipping based on the C / S architec...

AI Technical Summary

Problems solved by technology

Therefore, it is impossible to achieve precise cutting of audio and video, thus failing to meet the needs of applications that require high precision of audio and video cutting

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