Black frame on video loop at Firefox

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1

Hi, has anyone noticed problems with looping videos playing in Firefox? Here, I’m using my exported HTML5 project, using the standard video object. The wave background image is a looping video that doesn’t have black frames – the last one connects to the first without problems. When playing the project in Firefox, I notice that every time it returns to the beginning, there’s a black frame. However, when running the same project in Chrome (or any Chromium-based browser), the loop happens as expected.

Firefox
firefox

Chrome
chrome

2

I ran into this problem a few months ago. I ended up trimming the video slightly and it seemed to work. A couple options for that:

  • FFMPEG:
    ffmpeg -i Preloader-animation512.mp4 -ss 00:00:00.0 -t 00:00:06.0 -an Preloader-animation512trim.mp4

  • In QuickTime player, trim with Command-T (Mac), then save as new file. Compress it with HandBrake for better quality than ffmpeg.

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3

Interesting! I’ll try it! Thank you a lot!

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