So I recently noticed something kind of odd. For whatever reason, when playing back 24Hz 4K HDR content on the Apple TV 4K through Infuse, with the Apple TV set to a 60Hz output, Infuse seems to drop a lot of frames, which results in very noticeable stuttering. I’m not referring to the judder that can sometimes be visible when playing back 24Hz content at 60Hz, but rather a very noticeable stutter in the picture that looks like dropped frames.
When playing back this same 24Hz content at 60Hz, but without “Match Dynamic Range” turned on, so it plays back in SDR instead, it plays back fine with none of this stutter at all in Infuse.
Furthermore, when playing back this same content in the Plex app instead, still with the output set to 60Hz, and with “Match Dynamic Range” turned on, they playback in HDR very smoothly as well, and since Plex uses the native Apple TV video player, I think the issue is with Infuse’s custom video player dropping frames.
The videos playback smoothly in Infuse w/ HDR if I turn on “Match Framerate” so they playback at 24Hz, but I don’t want to leave “Match Framerate” turned on for a different reason. There is a bug with the Apple TV 4K that causes 24Hz SDR content to have a noticeable flicker in dark scenes on my TV, so I would prefer to leave my Apple TV in 60Hz only mode, and rely on my TV to display the 24Hz content without judder from within the 60Hz signal, which it can do just fine.
Any idea why Infuse seems to be dropping these frames when in 4K HDR 60Hz?
TV Model: LG B7 OLED