Exported Camera Video Mp4 Not Supported

[jonnysteele]

I'm running an Amcrest 5 series 4k NVR and I have 9 cameras installed (8 4k Amcrest Bullet cams and 1 Amcrest 4k 30fps bullet cam IP8M-2597EB). When I'm looking at playback video in the amcrest app on my phone and save a video using the video grab feature, it will save the video in the app, and then you have to export it using the app to an Mp4 and it saves the video file to the snapshot folder. This works on all my regular 4k cameras except the newest model IP8M-2597EB. It will save it as an Mp4, but none of my devices can play the file (not supported). I have to dowoad a special app just to view the video. Any idea on why this is happening, is there a way to change this?

[longedge]

One possibility is that you have H264 codec selected in the cameras that work and H265 in the one that doesn't. Have a look in the camera settings/video and see if that is how you have things setup, if so change the problem one to H264.

[jonnysteele]

I have this same issue. All my older 4k cameras work with mp4, but the newest model doesn't. I have to use a special app to convert the footage. Very annoying.

[longedge]

So did you try the H264 codec and also using CBR (constant bitrate) rather than VBR (variable bitrate). That combination should result in video files that will play on absolutely anything.

If you can make a sample video that won't playback available it might help troubleshooting.