Note about h265 and interlaced video:

h265 original release does not support interlace video (just progressive).
It did later add interlace video, but it is not standardized and different players treat it differently.
So if I where to convert a h264 to h265 interlaced video through FFmpeg, VLC would not support hardware acceleration, as well as show significant de-interlaced artifacts.
PowerDVD 20 can support hardware acceleration (so video does not look choppy, runs smooth), but can show major artifacts.
These videos are unfortunately no good to h265, unless I de interlace them first, but it is very challenging, slow, and error prone.
I can use the "mediainfo-gui" program on Linux to find if the source video is interlaced or progressive before I start converting.

    It is under view > text > scan type.

For me personally, most DVD and Blu-Ray movies are progressive.
As well as the COSMOS TV show, but almost the entirety of my Miku Magical Mirai BD's are interlaced (other then the BD menu's for it for year 2018 and newer).

Date: June 3rd, 2021

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