问题
I am trying to find out if there is a way with FFMPEG to dynamically inject ID3 tags during live streaming.
Basically I use FFMPEG to stream a live HLS stream from a video device, while another piece of software is generating events that need to be synced up in the front-end player.
I want to be able to have the event generating software encode the event in the live stream, so I know that the event is synced up with the video.
来源：https://stackoverflow.com/questions/54862783/dynamically-inject-id3-in-ffmpeg-live-stream