Those files which use formats and codecs not supported in macOS 10.15 are likely to become unusable when you have upgraded to that in the autumn/fall.Īpple provides detailed information with a list of supported formats, lists some of those which are being dropped, and provides full instructions for conversion. Mojave currently includes legacy support for QuickTime 7, so if you have old media files which rely on that and its codecs, now is the time to convert those to formats which will be supported in macOS 10.15.Īpple has released updates to iMovie, Final Cut Pro, Motion and Compressor which “detect media files that may be incompatible with future versions of macOS after Mojave and convert them to compatible formats.” You should upgrade to those and check your old media files in the coming weeks. Thanks in advance! This is the last roadblock for me to fully switch over to mpv, as I love pretty much all its other features.Apple has now confirmed that macOS 10.15 won’t support 32-bit software, which includes QuickTime 7 and all media formats and codecs relying on it.

I don't think comparing numbers is the best way to measure performance but I just wanted to leave these here in case someone notices something off about them. mpv uses around 25% CPU and >80% GPU (0% without macos-force-dedicated-gpu).

If these help, QuickTime usually runs with 8-10% CPU usage and 0% GPU usage. I know mpv has conservative defaults, so does anyone have any settings recommendations? If this is known but there isn't a solution, does anyone know why QuickTime works so well? Unfortunately, my computer heats up like crazy and my GPU usage is consistently >80% with that option.Ĭan anyone reproduce? I'm currently on macOS 11 but this has happened with 10.15 as well. When I enable macos-force-dedicated-gpu, mpv runs very smoothly and it appears to run as smooth as QuickTime Player. QuickTime Player doesn't seem to noticeably lag my system though.

I test this by invoking Mission Control (three-finger swipe up on trackpad) and when a video is playing in mpv, the animations are significantly choppier. When playing a video in mpv with default settings, it seems that my system runs less smoothly compared to playing the same video in QuickTime Player.

Quicktime macos