codec-compare (WebM Project)

Official WebM Project static front-end visualization framework for aggregating and presenting codec performance comparison data (AV1/AVIF/WebP).

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Related resources

• Performance Comparison of VVC, AV1, HEVC, and AVC for High ResolutionsOpen-access 2024 journal paper with direct BD-rate/complexity comparison of VVC, AV1, HEVC, and AVC at high resolutions.
• codec-comparisons (Kim2091)Active repo testing NVENC, QuickSync, AMF, and CPU encoders at matched bitrates for visual quality comparison.
• codec-evalRust codec comparison harness computing SSIMULACRA2 and Butteraugli for dual-metric artifact analysis across encoders.
• SINRG-Lab/Video-Codec-EvaluationFFmpeg pipeline computing MS-SSIM/PSNR/VMAF for H264/H265/VP9/AV1 with RD-plot analysis via a plotter script.
• Block-Partitioning Strategies for Accelerated Multi-rate Encoding in Adaptive VVC Streaming2025 arXiv paper on VVC encoder speed/efficiency techniques specifically for adaptive bitrate streaming ladders.
• WebM Project: VP9 Encoding Guide (FFmpeg)Official WebM project wiki guide to encoding VP9 via FFmpeg, covering CQ/CBR modes, tiling, and row-mt options.
• rav1d — memory-safe AV1 decoder in RustA Rust port of the dav1d AV1 decoder by ISRG/Prossimo, providing a memory-safe, performance-competitive decoder for the AV1 codec.
• Live Streaming with Automated Multi-Language Subtitling (AWS Labs)Reference architecture chaining MediaLive → Lambda@Edge (WebVTT injection) → MediaPackage with Transcribe Streaming + Translate for live mu…
• aom-av1-lavish — tuned aomenc forkFork of libaom/aomenc hyper-tuned for perceptual fidelity using butteraugli, VMAF and SSIMULACRA2 rate-distortion optimization.
• IENT/RDPlot — Rate-Distortion Plotting ToolQt GUI that parses encoder logs from reference software (HM/VTM/etc) and plots rate-distortion curves.