Quote:
Originally Posted by Asmodian
I believe the point is to do much of the analysis on a lower resolution video, then reuse that analysis with the higher resolution while still doing some refinement to fine tune the analysis for the full resolution.
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Basically correct. The idea is to "Analyse once, encode many".
Many of the recent CLI functions added to x265 are there to suit the demands of professional broadcast/OTT content providers, who may wish to create multiple resolution and bitrate copies of any one source.
The practical consumer application of this particular "reuse" functionality would be very niche.