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.
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