“Hi, there, when is Apple going to implement full support for H.265/HEVC into iMovie? I’m shooting with a new Samsung NX1 4K camera which records video files using H.265 compression with MP4 wrapper. I’m trying to edit the H.265 4K files in iMovie, but can’t get iMovie to ‘read’ them? Is there a workaround to get iMovie to recognize H.265 4K video? Hoping for a solution. Thanks in advance.”
H.265/HEVC is so popular that it has been adopted by Samsung NX500 4K camcorders. We need to edit Samsung NX500 H.265 videos to polish them in iMovie from time to time. However, once we import Samsung NX500 H.265 videos to iMovie, the importing window got black all the time. The preview of H.265 video just won’t come out no matter how many times we have tried.
The reason why iMovie window got black for a long time is the resolution of Samsung NX500 H.265 videos is 4096 x 2160, and if your Mac’s resolution is much lower than 4096 x 2160 or the version of iMovie is not the latest, the black iMovie window will happen. In order to import and edit Samsung NX500 H.265 videos in iMovie smoothly, I suggest you to upgrade iMovie and downgrade Samsung NX500 H.265 4K videos or transcode H.265 files to the most suitableCodec – AIC for iMovie.
You can upgrade iMovie in App Store on Mac. After that, if iMovie window still gets black when you importing Samsung NX500 H.265 videos to it, downgrading the resolution of H.265 files will be a good choice for you. Here I recommend UFUWare HD Video Converter for Mac to assist you downgrade Samsung NX500 H.265 videos to 1080p resolution. This App is able to transcode H.265 videos to AIC for iMovie as well. In addition, it supports for convert H.265/HEVC videos to Apple ProRes Codec for FCP X, to MPEG-2 for Premiere Pro, etc.
[Guide] How to transcode H.265/HEVC files to AIC .mov for editing in iMovie?
The steps:
Step 1: Open up H.265/HEVC Converter for Mac. When its main interface comes up, click ‘Import’ to load your source media.
Step 2: Select output format for your editing program
To convert H.265/HEVC video for iMovie, from ‘Profile’ list, choose ‘Apple InterMediate Codec (AIC)(*.mov)’ as output format under ‘iMovie and Final Cut Express’ column.
Step 3: If necessary, click ‘Settings’ button to custom video and audio settings like resolution, bit rate, frame rate, sample rate, audio channel, etc.
Step 4: Begin H.265/HEVC clips to AIC MOV Conversion on Mac
When ready, click ‘Start’ to begin format conversion. Once the conversion process is complete, you can click ‘Open Folder’ button to get the generated AIC MOV files for editing in iMovie with optimum performance.
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