Shell Photo Projects
PhotoStructure is your new home for all your photos and videos. Installation should only take a couple minutes.Project mention: Every pricing page should have GIFs | news.ycombinator.com | 2021-11-30
They may have tried to open arbitrary mp4s and had Firefox not render it.
Firefox seems to only render MP4 files that use yuv colorspace and aa3 audio channels, which require specific ffmpeg flags during transcoding. It took me a day of grinding whackamole to find the magic set of arguments to make all recent, popular browsers actually display a video:
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