stc VS Symphonia

Wonder no more: https://github.com/dudykr/stc

Written in Rust by the (lead?) dev of SWC

SWC (speedy web compiler) compiles TS to JS

The analogy (by swc's author) would be https://github.com/dudykr/stc

I'm also hoping for STC https://stc.dudy.dev/ but I don't think it will be released any time soon.

MyPy and tsc on the other hand? Please make a Ruff for MyPy and hurry up and fund the author of SWC to develop STC. I'm tired of waiting several seconds after each :w for my quickcheck window to update.

>If we could push JavaScript performance to be another order of magnitude faster

And it would speed up the TypeScript Compiler.

My bet is:

TypeScript typechecker in Rust:

https://github.com/dudykr/stc

typescript(tsc) is the only one that does type checking.

bun, deno, esbuild, swc etc. can parse the syntax, but they chuck the TS (they probably don't even add it to the AST, but I haven't checked).

Keeping up with syntax is very doable. It doesn't change often, and updating the parser when it does isn't much work.

There are some past/ongoing projects[1][2] to create type checkers faster than tsc, but they aren't going to reach full parity and probably don't plan on keeping up with language features.

[1] https://github.com/dudykr/stc

Well the checker is in progress.

Symphonia for an amazing audio library

Are you trying to play audio from something like an internet radio station where the stream has an infinite length? The content length header is optional. It uses that to support seeking within the file. Symphonia, one of the underlying backends for Rodio, has an option to tell the decoder that the source is not seekable if the size of the file is not known. Unfortunately, Rodio currently hardcodes this setting to true https://github.com/RustAudio/rodio/blob/master/src/decoder/read_seek_source.rs#L19. I actually wrote this code a few years ago so I should know this, but I can't remember why exactly. I think there was no easy way to communicate this information to Rodio since the other backends don't have a setting like this. The other Rodio backends may handle this differently. There's a lot of great info in this discussion on the Symphonia repo about this use case which helped me with my implementation: https://github.com/pdeljanov/Symphonia/discussions/153

Everything I can find on the internet seems to be abandoned. Opus-rs, Magnum, Magnum Opus, ect. Symphonia has been working on it for over 2 years, with work still ongoing. Heck, even FFMPEG seems to not have full support yet!. Is there any library that I have overlooked that provides this functionality?

In other areas, miniz_oxide is faster than miniz, Symphonia is faster than ffmpeg on most codecs, the not-yet-announced zune-png beats both libpng and the more heavily optimized libspng, and the png crate is getting considerable improvements too and also beats libpng.

Symphonia is an audio decoder framework in 100% safe Rust supporting the most popular media formats (MP4/M4A, OGG, MKV/WebM, WAV) and audio codecs (AAC-LC, ADPCM, ALAC, FLAC, MP1/2/3, Vorbis, PCM).

The Music Player is based on Rodio, which is a high-performance audio playback library for Rust, and Symphonia, which is a Rust library for working with music metadata and audio decoding. This allows the Music Player to provide high-quality audio playback and management.

You can look at symphonia for a pure Rust solution.