libvpx: VP8/VP9 Codec SDK

libvpx is the official WebM project library for VP8 and VP9 video codec implementations. It provides developers with the tools to encode and decode VP8 and VP9 video streams, facilitating high-quality video compression and playback.

Link

• Visit resource

Related resources

• av1-codec-comparisonGoogle internship research project comparing SVT-AV1 and rav1e coding tools against libaom for quality and speed.
• Comparing H.265/HEVC and VP9: Impact of High Frame Rates on Perceptual QualityAcademic comparison of HEVC and VP9 codecs under high frame-rate conditions, including ffmpeg/libvpx tuning parameters used.
• Applying Objective Quality Metrics to Video-Codec ComparisonStudy of 789 encoded streams and 320k subjective scores analyzing VMAF correlation per colorspace for codec comparison.
• Compression efficiency analysis of AV1, VVC, and HEVC for random access applicationsAPSIPA Transactions paper quantifying bitrate savings and encode/decode runtime ratios of AV1 vs VTM vs HM for random-access use cases.
• FOSDEM 2023: VVenC & VVdeC — Open Source Video Encoding and Playback for VVCFOSDEM Open Media devroom talk by Fraunhofer HHI developers presenting the VVenC encoder and VVdeC decoder for the VVC/H.266 codec.
• 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.
• 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.
• dav1d.wasmWASM port of the dav1d AV1 decoder, SIMD-optimized with TypeScript interfaces, aimed at production use in browsers.