AV1R: 'AV1' Video Encoding for Biological Microscopy Data

Converts legacy microscopy video formats (H.264/H.265, AVI/MJPEG, TIFF stacks) to the modern 'AV1' codec with minimal quality loss. Typical use cases include compressing large TIFF stacks from confocal microscopy and time-lapse experiments from hundreds of gigabytes to manageable sizes, re-encoding MP4 files exported from 'CellProfiler', 'ImageJ'/'Fiji', and microscope software with approximately 2x better compression at the same visual quality, and converting legacy AVI (MJPEG) and H.265 recordings to a single patent-free format suited for long-term archival. Automatically selects the best available backend: GPU hardware acceleration via 'Vulkan' 'VK_KHR_VIDEO_ENCODE_AV1' (tested on AMD RDNA4; bundled headers, builds with any 'Vulkan' SDK >= 1.3.275), with automatic fallback to CPU encoding through 'FFmpeg' and 'SVT-AV1'. Audio tracks are preserved automatically. Provides a simple R API for batch conversion of entire experiment folders.

Version:	0.1.2
Depends:	R (≥ 4.1.0)
Suggests:	magick, testthat (≥ 3.0.0)
Published:	2026-03-05
DOI:	10.32614/CRAN.package.AV1R (may not be active yet)
Author:	Yuri Baramykov [aut, cre]
Maintainer:	Yuri Baramykov <lbsbmsu at mail.ru>
BugReports:	https://github.com/Zabis13/AV1R/issues
License:	MIT + file LICENSE
URL:	https://github.com/Zabis13/AV1R
NeedsCompilation:	yes
SystemRequirements:	C++17, GNU make, FFmpeg (>= 4.4) with libavcodec/libavformat, libvulkan-dev (optional, for GPU encoding on Linux), Vulkan SDK (optional, for GPU encoding on Windows)
Materials:	README, NEWS
CRAN checks:	AV1R results

Documentation:

Reference manual:

AV1R.html , AV1R.pdf

Downloads:

Package source:	AV1R_0.1.2.tar.gz
Windows binaries:	r-devel: not available, r-release: not available, r-oldrel: not available
macOS binaries:	r-release (arm64): AV1R_0.1.2.tgz, r-oldrel (arm64): AV1R_0.1.2.tgz, r-release (x86_64): AV1R_0.1.2.tgz, r-oldrel (x86_64): AV1R_0.1.2.tgz

Linking:

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