
Create optimized and proxy files in Final Cut Pro for Mac
Final Cut Pro can play back many media formats. For a complete list, see Media formats supported in Final Cut Pro for Mac. Final Cut Pro also provides options for transcoding your media (converting it to a different format or changing its settings) to make it suitable for editing.
Create optimized media: This option transcodes video to the Apple ProRes 422 format, which provides better performance during editing, faster render times, and better color quality for compositing. If the original camera format can be edited with good performance, this option is dimmed.
Create proxy media: This option creates video proxy files. Video is transcoded to either the Apple ProRes 422 Proxy or H.264 format. You can create proxy media in a variety of frame sizes from 12.5 percent to 100 percent of the original. Proxy files increase editing performance and take up considerably less storage space than optimized files.
You can create optimized and proxy media during the import process or in the browser, after the media has been imported. You can also create a proxy file for a clip using the Info inspector. After transcoding is complete, the optimized and proxy files are stored in your Final Cut Pro library or in an external location you define. See Set storage locations in Final Cut Pro for Mac.
To control whether Final Cut Pro displays optimized, proxy, or original media in the viewer, and whether video playback is optimized for quality or performance, choose the corresponding options from the View pop-up menu in the upper-right corner of the viewer. See Control playback quality in Final Cut Pro for Mac.
Important: If you use proxy media for playback, make sure to switch back to optimized/original media before sharing your project. This ensures the highest quality in the exported file. See Intro to sharing projects in Final Cut Pro for Mac.
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