amp-mate-rs VS Symphonia

Rotel still allows this, at least on models a few years old. I have a RA-1572 amplifier, and it's a joy to work with. Plug a serial or a network cable, and start talking to it. It supports the same commands over RS232 or TCP (basic TCP, not HTTP or what have you – just don't open too many connections too often, or it will choke). They also support IR IN / OUT, but I've never attempted to work with those. I seem to remember that the IR codes were documented somewhere, but I can't remember where I've seen that (I've never needed them).

The protocol is documented here: https://www.rotel.com/manuals-resources/rs232-protocols. The TCP commands are the same as the RS232 commands, the docs say on which port it listens, etc.

I've started building a "remote control" to an amp to be used from an I3 bar: https://github.com/vladvasiliu/amp-mate-rs (older Python version which doesn't do much: https://github.com/vladvasiliu/amp_mate).

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.