The engineers at Immunant opted to use c2rust for porting the AV1 decoder, allowing them to test continually while simplifying the need for expert knowledge.
Full CI testing from the start during the Rust refactoring project proved invaluable, allowing the team to make extensive changes while maintaining code integrity.
Refactoring the Rust code encountered several challenges, especially mismatches between C and Rust regarding lifetime management, memory ownership, and the design's reliance on shared mutable access.
Despite the project's complexity, having a systems programming-focused team with a codec expert provided the needed support to navigate issues during the porting process.
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