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Client-Side FFmpeg.wasm Performance Bottlenecks on Real Video Files : Cross-Platform Integration Over Inconsistent Platform APIs
TypeScriptWebCodecsmp4box.jsOPFS
Problem Breakdown
The integration defect is treating platform APIs (clipboard, permissions, device access) as uniform when each browser and OS implements them with different semantics, event shapes, and failure modes : code written against one platform's behavior silently misbehaves on the rest. Browser-based video tools run FFmpeg.wasm…
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