Let me also emphasize Windows here (besides Linux) because, while hardware encoding has already mostly worked on Windows platforms for AMD hardware, there also has been a long-standing unaddressed hardware encoding bug on the Windows platform since 1st generation Navi (e.g. RX 5700) came out in mid 2019, as well as any subsequent products including Ryzen 4000 series APUs (I use a Ryzen 7 PRO 4750G). Navi and Ryzen 4000 “Renoir” APUs have a newer version of Video Core Next (2.0 and 2.2, respectively) which, when used in combination with Plex’s customized build of FFmpeg, results in clouds of multicolored pixel noise which does not occur in non-Plex implementations of FFmpeg (e.g. Handbrake). This Windows specific bug has been a reported issue in the Plex forums since Navi released in mid 2019 and has yet to be addressed.
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