dav1d.wasm

Description

WASM port of the dav1d AV1 decoder, SIMD-optimized with TypeScript interfaces, aimed at production use in browsers.

dav1d.wasm is cataloged in Encoding & Codecs and Software Codecs.

hevc.jsHEVC decoder in WASM transcribed directly from the H.265 spec, pixel-validated against ffmpeg on 128 streams; ships as a dash.js drop-in pl…
opus-jsActively maintained fork encoding/decoding OggOpus and RawOpus in the browser via WASM.
simple-lossless-encoder (libjxl)Standalone single-file C++ lossless JPEG XL encoder with no dependencies.
nano-hevcMinimal educational HEVC encoder written in pure Python, readable-over-fast, for teaching codec internals.
Opus (xiph/opus)Reference implementation of the Opus audio codec, recently adding deep-learning-based packet loss concealment.
AV1 Encoding with libsvtav1 on QencodeThe libsvtav1 encoder (SVT-AV1) is an AV1 implementation tuned for both compression efficiency and parallel performance. This guide covers…
FOSDEM 2024: VVdeC<>Arm — Optimizing an Open Source VVC Decoder for Arm ArchitecturesFOSDEM Open Media devroom talk detailing Arm-specific performance optimization work on the open-source VVdeC VVC decoder.
Differentiable VMAF Re-implementation on PyTorchDifferentiable PyTorch reimplementation of VMAF metric enabling gradient-based codec/RDO optimization, with companion code.
Performance Comparison of AV1, JEM, VP9, and HEVC EncodersFraunhofer HHI SPIE 2017 paper comparing codec internals, BD-BR, and complexity across AV1, JEM, VP9, and HEVC.
jxs (JPEG XS reference)Reference software implementation of ISO/IEC 21122-5 (JPEG XS) including jxs_encoder binary, supports PNM/PGX/raw YUV/RGB input.