/r/Plex's Moronic Mondays' No Stupid Questions Thread - 2018-10-22

This might be a stupid question.

What is happening with Optimizing that isn't happening in real-time transcoding?

For example, normally my anime has to transcode to play in FireTV Cube because of the subtitles. This generally has my CPU going between 60-100% usage. The AVERAGE ends up being around 72%. I have my quality settings maxed because I only Stream to a handful of people. 120 seconds throttle buffer. Never any lag or issues other than pixelation in high action scenes (source files look great so it has to be a transcode issue but that's not relevant).

I decided to test optimized files. It took me an HOUR with my CPU at 100% usage to optimize for Android.

The difference was 5.3 Mbps transcode vs 5.1Mbps Direct Play with the optimized file.

Visually, there was basically no difference. So what the hell was it doing? Why did it take AN HOUR to get basically the same quality as real-time transcoding?

/r/PleX Thread