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I guess this could be used to remux the broken files that are spitted by the MediaRecorder API, which have missing metadata that prevents from seeking and thus far has been ignored / sweeped away in Chrome [1], Firefox [2], and even the standard itself [3], which ignored in its design the basic fact that encoding any file should include a "closing" stage (where metadata is written) before yielding it as a finished file.
[1]: https://bugs.chromium.org/p/chromium/issues/detail?id=642012
[2]: https://bugzilla.mozilla.org/show_bug.cgi?id=1283464
[3]: https://github.com/w3c/mediacapture-record/issues/119
> And there's been talk of exposing the JS GC to wasm for a few years. Hopefully when that stuff lands, it'll get easier to marshal objects across the gap.
You don't need a Wasm GC to do this. If you only need js objects to pass on to, say, the host's function or check is null or not, then reference types that are opaque external references: https://github.com/WebAssembly/reference-types/blob/master/p...
You can even do many more things if you export `Reflect` to WebAssembly: https://github.com/AssemblyScript/assemblyscript/blob/main/t...
Reference Types are available almost everywhere already (In Safari will be available after 15.0): https://webassembly.org/roadmap
> And there's been talk of exposing the JS GC to wasm for a few years. Hopefully when that stuff lands, it'll get easier to marshal objects across the gap.
You don't need a Wasm GC to do this. If you only need js objects to pass on to, say, the host's function or check is null or not, then reference types that are opaque external references: https://github.com/WebAssembly/reference-types/blob/master/p...
You can even do many more things if you export `Reflect` to WebAssembly: https://github.com/AssemblyScript/assemblyscript/blob/main/t...
Reference Types are available almost everywhere already (In Safari will be available after 15.0): https://webassembly.org/roadmap
There’s also a ffmpeg port to WebAssembly that can be used from Rust: https://github.com/jedisct1/rust-ffmpeg-wasi or linked to a Zig project targeting WebAssembly: https://github.com/jedisct1/tinyglitch
There’s also a ffmpeg port to WebAssembly that can be used from Rust: https://github.com/jedisct1/rust-ffmpeg-wasi or linked to a Zig project targeting WebAssembly: https://github.com/jedisct1/tinyglitch