It's a player of the ffmpeg lineage; a GUI frontend for mpv. If you use mpv or some frontend (e.g., SMPlayer, Celluloid, or Haruna) on other platforms, IINA is a natural choice on macOS.

It's free software, it's keyboard friendly, it supports more of less every format, and it blends into the OS's native desktop environment. I don't have an eye for design, but it seems good to me. If there's a better choice for local multimedia playback on macOS, I don't know what that is.

(It seems the only other real contender on the backend is VLC, which is likewise excellent software.)

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tiagod 4 days ago | parent [-]

>It seems the only other real contender on the backend is VLC

Does VLC already support HDR content on MacOS? I switched to IINA because of that omission.

	▲	pxc 4 days ago \| parent [-]
		I don't know. I have a medical light sensitivity problem that makes most HDR content physically painful for me unless I manipulate picture settings to reduce peak brightness, backlight, and/or contrast in various ways. Between my light sensitivity and my progressive colorblindness, I don't get as much out of HDR as most people do, so I just turn it off where possible. Maybe some day when I have more external displays with OLED or something else that can do millions-to-one contrast ratios, I'll play around with HDR and see if I can find a way to reliably make it comfortable, but for now I don't own any-- it's just the built-in displays of my mobile devices, and I spend as much time as possible on much larger screens because I also have visual acuity problems.