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Miguel Ángel
557a270271
Extracted video frames are render-scoped temp files read once during capture, so zlib effort above level 1 buys nothing. Measured 3.3x faster on 60s of 1080p H.264 to PNG (11.4s to 3.5s) and 5.4x on a 20s vp9-alpha webm (4.3s to 0.79s), for ~14% larger temp files.