user24655: I'm trying to edit some video clips recorded on a Samsung Gallaxy Note 9, at a high FPS (60, or 120), and the mp4 files won't play on my Mac. More specifically, they play the audio, but the video just shows a black screen.
Videos recorded at 30 fps look fine, but anything at a higher FPS shows with a black screen, either when I play it with Quicktime, or if I try to import it into a video editing app like Final Cut Pro or iMovie.
Anyone have any idea if a certain video codec is required to get it to play on a Mac?
Thanks!

user24627: Try the following:

use the adobe media encoder preferably, or some other encoder to encode the file as something like prores422 or prores4444.
use a different player, like vlc, djv, etc.
Check if you have all codecs installed, for quicktime and h.264, etc.
Open the file on a different machine. If it still won't work, it's probably the file that's the root of the problem.

How big is the video-file? If it's around 3mb or something, that might indicate that there is no visual information in the file in the first place. If the file is moderately big, the problem might be with the player and/or the codecs on your machine.

24655: <p>I'm trying to edit some video clips recorded on a Samsung Gallaxy Note 9, at a high FPS (60, or 120), and the mp4 files won't play on my Mac. More specifically, they play the audio, but the video just shows a black screen.</p>

<p>Videos recorded at 30 fps look fine, but anything at a higher FPS shows with a black screen, either when I play it with Quicktime, or if I try to import it into a video editing app like Final Cut Pro or iMovie.</p>

<p>Anyone have any idea if a certain video codec is required to get it to play on a Mac?</p>

<p>Thanks!</p>
 24627: <p>Try the following:</p>

<ul>
<li>use the adobe media encoder preferably, or some other encoder to encode the file as something like prores422 or prores4444.</li>
<li>use a different player, like vlc, djv, etc.</li>
<li>Check if you have all codecs installed, for quicktime and h.264, etc.</li>
<li>Open the file on a different machine. If it still won't work, it's probably the file that's the root of the problem.</li>
</ul>

<p>How big is the video-file? If it's around 3mb or something, that might indicate that there is no visual information in the file in the first place. If the file is moderately big, the problem might be with the player and/or the codecs on your machine.</p>
