vuiocodecaac: High-Performance Pure Rust MPEG AAC Audio Codec Suite

N.B.! This is Rust fork of original C project https://github.com/ittiam-systems/libxaac

vuiocodecaac is a 100% pure, memory-safe, idiomatic Rust implementation of the MPEG AAC audio codec suite, providing bit-exact output, extreme throughput, SIMD auto-vectorization, Rayon multi-threading, and zero-allocation aligned buffer architectures.

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Features

• Formats (see text/plan.txt for the file-by-file audit against the C reference — it marks every tool done, partial or missing):
  • MPEG-2 / MPEG-4 AAC-LC (Low Complexity) — decode and encode
  • HE-AAC v1 (Spectral Band Replication / SBR) — decode only
  • HE-AAC v2 (Parametric Stereo / PS) — decode only
  • MPEG-D USAC — Frequency Domain core and the ACELP speech core; TCX, FAC and ISO USAC framing are not implemented yet
  • DRC — the legacy dynamic_range_info() element and BS.1770 loudness measurement; MPEG-D uniDRC is not implemented
  • Not implemented: MPEG Surround, SBR/PS encode, AAC-LD / AAC-ELD, error resilience (HCR/RVLC) and error concealment. These return an explicit Unimplemented error rather than approximating.
• Container Multiplexers & Syntaxes:
  • ADTS (Audio Data Transport Stream with CRC-16)
  • ADIF (Audio Data Interchange Format)
  • LATM / LOAS (Low-overhead Audio Transport Multiplex)
  • RAW (Direct AudioSpecificConfig payloads)
• Performance & SIMD:
  • 64-byte CPU cache-line aligned audio buffers (AVec<T> matching AVX-512 / NEON)
  • Multi-threaded multi-channel processing via Rayon
  • Optimized mixed-radix FFT / IMDCT transform pipelines
• Memory Safe & Robust:
  • #![forbid(unsafe_code)] enforced across all core modules

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License

Apache 2.0 or MIT

Attributions

This product includes algorithmic designs and software derived from libxaac, originally developed by Ittiam Systems Pvt. Ltd. and licensed under the Apache License, Version 2.0.

Original Project: https://github.com/ittiam-systems/libxaac Copyright (c) Ittiam Systems Pvt. Ltd.