|
My guess is that he is only interested in your second point, accellerating the encoding speed.
"The extreme" is – in general – rarely useful, neither an extreme speed nor an extreme "quality" (preset ~ de-redundancy efforts) makes sense in most cases.
Using an extreme high-speed preset (e.g. "x264 --preset ultrafast") will cause inefficient encoding results.
Using an extreme high-[s]quality[/s]effort presets (e.g. "x264 --preset placebo") will cause a waste of time and energy. No, it doesn't mean "quality". Not half as much as decreasing a CRF by one.
|