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Re:Justin.tv's Live Video Broadcasting Architecture (2010) by thomastjeffery on Wednesday July 03, 2019 @08:02PM (#20350263)
> Realtime transcoding

I'm curious: Do services like Twitch specify a specific desired codec/bitrate that doesn't get transcoded? Transcoding seems like a lot of effort for lower quality end result.

If I were streaming, I would want to avoid transcoding as much as possible. Since we're talking about live broadcasting, there is a unique ability for the streamer to choose the format they upload.

Re:Justin.tv's Live Video Broadcasting Architecture (2010) by kd5bjo on Wednesday July 03, 2019 @08:07PM (#20350295)
In the RTMP days, the highest quality setting in the viewer was always a straight pass through from the broadcaster, and the reduced versions were transcoded in the data center to fit down lower-bandwidth last-mike pipes.
Re:Justin.tv's Live Video Broadcasting Architecture (2010) by slimscsi on Thursday July 04, 2019 @10:08AM (#20354749)
Same in the HLS days. What used to be called “source” was just a remux from rtmp to ts.
Re:Justin.tv's Live Video Broadcasting Architecture (2010) by thomastjeffery on Wednesday July 03, 2019 @08:17PM (#20350369)
Gotcha. For whatever reason, I had forgotten about lower-bandwidth copies.