How do I change the dimensions of a movie to make it larger?
I have a movie of my iPhone 8, and I want to increase the dimension but keep its proportion.
Mac mini, macOS High Sierra (10.13.6)
So, you have (for example) a 720 x 1280 video in 9:16 aspect ratio that you want to change to 1080 x 1920 keeping the same aspect ratio. Is that essentially right?
I think you might be able to do that with the free download MPEG Streamclip. You can download it here:
http://www.squared5.com/svideo/mpeg-streamclip-mac.html
Open your movie in Streamclip and do a File/Export and select one of the options that display. In the export window that appears you will have several dimension options, including "custom". See if you can type in your 1080 x 1920 dimensions and export to that.
-- Rich
So, you have (for example) a 720 x 1280 video in 9:16 aspect ratio that you want to change to 1080 x 1920 keeping the same aspect ratio. Is that essentially right?
I think you might be able to do that with the free download MPEG Streamclip. You can download it here:
http://www.squared5.com/svideo/mpeg-streamclip-mac.html
Open your movie in Streamclip and do a File/Export and select one of the options that display. In the export window that appears you will have several dimension options, including "custom". See if you can type in your 1080 x 1920 dimensions and export to that.
-- Rich
Hi,
The size of the screen determines the size of the video. Bigger screen, bigger video. You can increase the resolution (the number of pixels in the the movie) by sharing it out at a higher resolution. Or converting it to a higher resolution. However, upscaling doesn’t usually give good results.
What are you trying to do?
— Rich
As I mentioned earlier, when you upscale a video the results are usually not satisfactory.
I have no knowledge whether there is any other software that can do what you want. I have never tried what you are endeavoring. There may be some. Perhaps it would be worthwhile to Goggle the question and see what you can come up with.
I don't know what settings you used in Streamclip, so can't comment there.
-- Rich
I am an iOS app developer, and the video file is a preview of my app. Apple App Store Connect requires the dimension of the app preview movie for iPhone 5.5" screens to be 1080x1920. The dimensions have to be so or App Store Connect doesn't accept the file for upload.
I tried Streamclip. The mov file it makes doesn't play very good-looking in Quicktime, and it has to be converted by Quicktime. It's also not able to be uploaded to App Store Connect. I wonder if I did not set the appropriate settings. Do you have any idea? Are there other software out there that would do what I want?
How do I change the dimensions of a movie to make it larger?
