How to Convert File m4s to mp4 and Download File m4s - YouTube
Python crawler: crawling Bilibili video (. m4s)
Anatoliy Zabrovskiy on Twitter: "A cross platform software to download MPEG-DASH streams (it works with mp4, m4s). @DASH_IF https://t.co/HbQ0E2M0I0 https://t.co/sc5Hshdt4x" / Twitter
What are the differences between a .M4V file and a .MP4 file? - Quora
Front-end streaming: Getting started with MSE - SegmentFault 思否
Use FFMPEG to CONVERT (bilibili)m4s video to mp4 - YouTube
How to combine init.mp4 and .m4s files?? · Issue #3488 · Dash-Industry-Forum/dash.js · GitHub