How to combine video and audio through API or JS? [closed]
问题 Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 2 days ago . Improve this question I am working to design a system which does the following: User uploads a video, JS code finds the length of the video. Performs HTTP calls to an already-existing service to retrieve an audio track of the same length. Synchronize and combine the audio and video