Handle Variants in Live streaming using HLS

Question

I was watching some videos in twitch.tv to be sure how variants work for live streaming.

I see that, in the beginning a master manifest is downloaded and then a playlist is selected. After this, I used tomcast to throttling network and I waited until videos resolution changes to other variant, but it did not happened never (video was lagged but continued downloading the variant video selected in the beginning).

My question is, if live-HLS adapts the streaming with the variants once it started to play.

Answer 1

The selection of what variant to play is done by the player. Every player is different, and Twitch uses their own. To understand why that specific player is behaving that specific way would require Twitch to comment.