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. Its matching article covering iMovie gives comparable information for that app.Īmong those video formats which will still be supported in 10.15 are Apple Intermediate codec, Apple ProRes, Apple ProRes RAW, AVCHD, DV, H.264, and XDCAM. Most popular still image and audio formats will also continue to be supported.Īmong those which won’t be supported under macOS 10.15 are several Avid formats, Cinepak, DivX, Flash Video, FlashPix, GlueTools codecs, JPEG 2000, Motion JPEG A and B, Perian codecs (MPEG-4, DivX, and more), RealVideo, several Sorensons, and Windows Media Video (WMV) 7, 8, 9. It’s possible that some vendors may port codecs or other tools to 10.15 to support some of them in the future, although this looks unlikely at present. Unfortunately, there’s no system-level means of checking which video, audio and still image formats remain reliant on 32-bit components such as codecs. They aren’t included in Mojave’s System Information under its Legacy Software section, which only seems to cover apps and similar bundles.
Most, perhaps all, of those listed in the Components section are provided in 32-bit form and will be unavailable in macOS 10.15, but there doesn’t appear to be any listing of formats which are supported in QuickTime X. One thorough and reliable way to identify all types of code which remain 32-bit only is my free app 32-bitCheck, available from Downloads above.
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