May 18, 2021 WeChat Mini Program Development Document
Base library 2.9.0 starts to support, and low versions need to be compatible.
It can be returned via MediaContainer.extractDataSource.
MediaTrack audio or video tracks that can do some work on the tracks
Track type, read-only
The legal value of kind
| Value | Description | The lowest version |
|---|---|---|
| audio | Audio track | |
| video | Video track |
Track length, read-only
Volume, audio track valid, writeable