Video screen projection method, device, system and storage medium

Abstract

The invention discloses a video screen projection method, a device, a system and a storage medium. The method comprises the following steps: acquiring a video file and a subtitle file; decoding the video file to generate a video decoded file, and rendering the subtitle file to generate a subtitle rendering file; synthesizing and encoding the video decoding file and the subtitle rendering file to generate a TS video stream; and transmitting the TS video stream to a screen projection end for playing in real time. According to the method, the video decoding file and the subtitle rendering file are synthesized and encoded into a TS video stream; the generated TS video stream is transmitted to the screen projection end in real time, and the new TS video stream is generated by continuous coding,so that the video content played in the screen projection end is ensured to contain the captions pressed during synthetic coding, the screen projection playing efficiency of the video file is relatively improved, and the video watching experience of a user is further improved. In addition, the invention further provides a video screen projection device, a system and a storage medium, and the beneficial effects are the same as described above.

Description

technical field [0001] The present invention relates to the field of video coding, in particular to a video projection method, device, system and storage medium. Background technique [0002] With the continuous development of multimedia technology, the types of devices that can play video files have become more diverse. On this basis, sharing and playing video files between playback devices has gradually become a key function of current video software. Screen casting is a common way of sharing and playing current video files. Video projection refers to synchronizing video files played on mobile phones, tablets, computers and other smart devices to another device for playback and viewing through screen projection. . [0003] In order to improve the viewing experience of the video, subtitles are often required to be included in the content of the projected video. Currently, when casting a video containing subtitles, it is necessary to suppress the subtitles in the video file...

AI Technical Summary

Problems solved by technology

[0003] In order to improve the viewing experience of the video, subtitles are often required to be included in the content of the projected video. Currently, when casting a video containing subtitles, it is necessary to suppress the subtitles in the video file first, and then suppress the complete video file with subtitles. For screencasting, the time required to completely suppress the subtitles on the video file depends on the size of the video file, and the user needs to wait for a period of time ranging from a few minutes to half an hour, which reduces the overall efficiency of screencasting the video file , users experience a low video viewing experience

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