jm + hls   2

How we implemented the video player in Mail.Ru Cloud
We’ve recently added video streaming service to Mail.Ru Cloud. Development started with contemplating the new feature as an all-purpose “Swiss Army knife” that would both play files of any format and work on any device with the Cloud available. Video content uploaded to the Cloud mostly falls into one of the two categories: “movies/series” and “users’ videos”. The latter are the videos that users shoot with their phones and cameras, and these videos are most versatile in terms of formats and codecs. For many reasons, it is often a problem to watch these videos on other end-user devices without prior normalization: a required codec is missing, or the file size is too big to download, or whatever.


Mainly around using HLS (HTTP Live Streaming).
hls  http  streaming  video  audio  mail.ru  players  codecs 
march 2016 by jm
Video Processing at Dropbox
On-the-fly video transcoding during live streaming. They've done a great job of this!
At the beginning of the development of this feature, we entertained the idea to simply pre-transcode all the videos in Dropbox to all possible target devices. Soon enough we realized that this simple approach would be too expensive at our scale, so we decided to build a system that allows us to trigger a transcoding process only upon user request and cache the results for subsequent fetches. This on-demand approach: adapts to heterogeneous devices and network conditions, is relatively cheap (everything is relative at our scale), guarantees low latency startup time.
ffmpeg  dropbox  streaming  video  cdn  ec2  hls  http  mp4  nginx  haproxy  aws  h264 
february 2014 by jm

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