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Amount of pixels is irrelevant at this stage since the actual usable and challengeable portion of the frame is highly variable (for reasons stated in Imprecise rule regarding video quality of submissions).
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I don’t think the amount of pixels is irrelevant at this stage, actually I think it’s the opposite. It paves the way to rule out videos with black bars or unusable sections (which I think is a no-brainer - easy to understand, easy to check, easy to judge), and then sets the stage where we can down the line set some rule like: “the human (or human face) must cover at least 50% of the video for at least 3 seconds, or something along these lines.”
So I would vote yes for something like:
Video resolution must be at most 2 minutes long, in the video/webm, video/MP4, video/avi or video/mov format, and follow the minimum size: Horizontal video Minimum height in pixels: equal to or higher than 360 pixels Minimum width in pixels: equal to or higher than 640 pixels Vertical video Minimum height in pixels: equal to or higher than 640 pixels Minimum width in pixels: equal to or higher than 352 pixels
Regarding locking the aspect ratio, I’d agree it might generate some opportunities for challenges. However notice that once we set a clear minimum resolution, the dev team can easily code the submit page to reject videos that do not comply with it. Once we have that, we won’t have this problem.
Hope to hear more opinions on this!