I don’t do video editing/uploading, but I did find this possible explanation …

Alternatively, did you verify that the video quality didn’t accidentally get changed in iMovie?

On Nov 6, 2024, at 4:46?PM, tim meidroth via <timmeidroth=[email protected]> wrote:

my iphone 13 pro max (17.6.1) is set to always record video at 4k 60fps --- but when i process those videos on imovie and then post them to youtube the "video details" display on youtube shows, under video quality,? that some are in 4k but some most are not, like the example shown here...why aren't they all showing up as 4k??

--
Bev in TX

Bev’s answer might be one reason you are seeing this. It does take longer for 4K versions to post at full resolution on both Youtube and Vimeo. You can use Get Info to check the final video before you upload to YouTube. You need to know if the problem is YouTube, or your prior workflow. Apple apps can be cavalier about changing resolution and recompressing. For instance, if you “Export” from Photos, you need to explicitly select the resolution you want, or make sure you “Export as unmodified original” which is a separate command.

I don’t process anything on my Phone so if you are going direct from Phone to YouTube, I’m not sure where it might be changing.?If you use Messages or Email to move files from phone to desktop, you will recompress by default. Use iCloud or Photos to transfer from phone to desktop.

Current versions of Photos will copy the original resolution if you drag and drop the video out of Photos, but older versions of iPhoto would recompress the original if you did this.

iMovie sets the project resolution based on the first clip that you drop in, so you must drop in your 4K clip first. You also must select 4K on export. It appears that iMovie will not export 4K 60fps yet. It will be 4K 30fps. This is unlikely to matter to you. 60fps only makes a difference in very specific circumstances and is more useful for creating slow-motion rather than as a finishing resolution.

You need to check every step. Use Get Info to check files along the way.

Cheers,
???????????????tod

Tod Hopkins
Hoptod LLC
443-472-5978

On Nov 6, 2024, at 5:46?PM, tim meidroth <timmeidroth@...> wrote:

my iphone 13 pro max (17.6.1) is set to always record video at 4k 60fps --- but when i process those videos on imovie and then post them to youtube the "video details" display on youtube shows, under video quality,? that some are in 4k but some most are not, like the example shown here...why aren't they all showing up as 4k??

<Screen Shot 2024-11-06 at 4.35.12 PM.png>

??

? ?

It should show its resolution.? QuickTime Player has more details:

? ? ? Window menu > Show Movie Inspector

Also see:

The Definitive Aspect Ratio & Resolution Guide For Video: 2K, 4K, 6K, 8K & Every Other Major Format

On Nov 7, 2024, at 11:43?AM, tim meidroth via <timmeidroth=[email protected]> wrote:

thanks bev ... i don't know how to verify that the video quality didn't get changed in imovie...when i use "get info" on the completed movie on imovie (this is before i post it to you tube) the info displayed does not show my the video quality.

--
Bev in TX