Transcoding method for video file in any format

Abstract

A transcoding method for a video file in any format comprises the steps of acquiring attributes of a video file to be transcoded and a transcoding demand of a target file, and creating at least two groups of transcoding process modules; determining a working mode of a transcoding process module by comparing attributes of the video file to be transcoded with a transcoding demand, and creating a component of the transcoding process module; enabling a video data reading module to read videos frame by frame, and transmit the videos to the transcoding process module after necessary information is attached to the videos; enabling the transcoding process module to transcode video frames in parallel according to a corresponding rule and a working mode of the transcoding process module; and writing the video frame generated by transcoding into the target file. According to the method, the problem of extra time consumption caused by segmentation of the video file to be transcoded and repeated transmission of the video data on the network is avoided, and meanwhile, the transcoding method can be quickly, efficiently and stably realized aiming at the video file of any format and any reasonable transcoding demand.

Description

technical field [0001] The invention relates to the field of audio and video streaming media, in particular to a method for transcoding video files in any format. Background technique [0002] In recent years, with the rapid development of network and communication technology, various applications in video conferencing, video surveillance, high-definition movies and other video fields can be seen everywhere in people's daily life. The above-mentioned common applications will save video data as video files for Users view historical videos online. Due to the variety of saved video file formats, and at the same time, the way users view video files online is not uniform, which is doomed to confirm that the format of video files cannot be successfully accessed online by all users. In view of this, video files need to be transcoded to generate other formats. video files to ensure that every user can successfully access historical video files. In addition, video files may contain...

AI Technical Summary

Problems solved by technology

This transcoding method has certain practicability, but it has the following disadvantages. First, the video file to be transcoded is divided into sub-files, and the sub-files generated by transcoding are merged into the target file. These two processes may affect the transcoding process. Factors of code quality, such as the sub-files to be transcoded cannot be decoded normally, the combination of sub-files generated by transcoding causes the lip sound of the target transcoded file to be out of sync, and the process of merging sub-files generated by transcoding takes a long time, etc.; second, this transcoding method The usage scenarios are relatively limited, and the scope of application is not wide. For example, transcoding needs to generate target video files with high and low resolutions

[0006] There are also some video file transcoding methods disclosed in Chinese patents, which basically seek innovation in the schemes of segmenting the video file to be transcoded, or distributed transcoding sub-files, or generating target video files based on the media information of the file to be transcoded. point, these solutions all have some deficiencies briefly introduced in the three Chinese open patents listed above

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