Alice Averlong🏳️⚧️oh god. I thought every social media was breaking my audio when uploaded, but no, they're transcoding my mp4 into a perfectly sync'd mp4.
which firefox/their video player then plays out of sync.
I feel like less shit for making a video that played wrong, I thought I fucked up the sync.
but now I have zero idea how to fix this
yeah, it's not tumblr that's fucking this, I made my own HTML that was just <title>VIDEO</title><video width="320" height="240" controls><source src="video.mp4" type="video/mp4"></video> and it still plays out of sync in firefox
Peter Bindels@foone so that depends on how it's encoded. For ... reasons... mp4 files have like 3 different time sources in the file. So when tumblr "fixes" your sync they might be adjusting one of these out of sync with the others, making it work on some systems and breaking on others depending on exactly how they use the multiple timecodes.
source: tried to play a Disney DVD with my own software, fixed the software to make it work