Always mark videos as frequently changing #9447
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Makes it more readable. No functional impact.
Previously, by mistake, only full hash fails could flag a frequently changing texture - minihash checks skipped this, causing scaling performance issues. Fixes hrydgard#9125.
This prevents scaling of the first frame in some cases, when later frames would also not be scaled. Improves performance and reduces frame mismatch.
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This fixes a bug where minihash fails weren't marking the frequently changing flag since #8720.
It goes a step farther, and always marks videos as frequently changing, to prevent the first frame as well, if possible. Better to consistently scale/not scale all frames (even if the video stays the same for a bunch of frames) for videos, IMHO.
-[Unknown]