codec

A batch transcoding GUI for Linux built with PySide6.

Python bindings for google/jpegli — smaller JPEGs at the same quality

Uses a codec that every social network accepts

Linux tool that turns your laptop into a Bluetooth headphone to verify which audio codecs (LDAC, LHDC, aptX) your Android phone actually supports.

Video Sleuth is a powerful python based video analysis tool under development. It includes wrappers around ffmpeg and vmaf. Comes with utilities for benchmarking.

Deterministic trajectory codec on OSM ways and AIS surfaces — v0.1.1 — 13.78× OSM / 27.3× AIS / p95 0.064 ms

GPU JPEG2000 (J2K) benchmark: fvJPEG2000 vs nvJPEG2000 on an NVIDIA RTX 4090. Reproducible measurement procedure with scripts and logs.

Binary-to-text codecs for Python: hand-written C, one interface, strict decoding, and a drop-in for the standard library's base64

Identifier-safe Base60 codec, arbitrary-precision arithmetic, and tensor operations in Python and C++20.

Annomator is a fully featured automatic image annotator. It can detect, record, edit and display masks and boxes from objects detected in images.

Python Master of AAPM@Audio-8151

Batch-convert video both ways between MP4 and MOV — a native PyQt6 desktop app for Linux

AI-powered ultra-low bitrate audio codec CLI built on SNAC — Compress audio at 0.98-2.6 kbps with near-original quality (392:1 ratio vs WAV)

Reusable codec/runtime library for the comma video compression challenge — score-aware sparse-encoder, predictor with refusal modes, meta-Lagrangian search engine, hardened preflight infrastructure

Use all unicode char up to 2^17 as dict, to encode anything!

ZPE-Mocap V0.0: DETERMINISTIC MOTION CAPTURE CODEC: Joint Angles | Positional Fidelity | Search Ranking | Sub-ms Query | Skeletal Transport

Deterministic codec for delayed public market data. 5.94×–10.90× smaller than raw on declared public corpora; RMSE 0.0 ticks on price field. Phase 06 sovereign authority gated on FT-C004 truth.

ZPE-Diagram v0.1.0 — bounded structural-and-style diagram codec. Six declared synthetic SVGs round-trip exactly across geometry, color/stroke, and draw order. Out-of-scope inputs (fill, dash, palette escape) rejected at encode time. Not a compression codec.

Research prototype exploring whether TurboQuant-style vector quantization can work as a direct lossy audio codec for PCM waveforms.

For code-related issues and technical questions, please CC the first author (Jiasen Li lijiasen0921@sjtu.edu.cn). For collaboration inquiries, please contact the corresponding author (Haibing Guan hbguan@sjtu.edu.cn).