Installation¶

pip¶

pip install pyeulervid

conda / pixi (conda-forge)¶

# conda
conda install -c conda-forge pyevm

# pixi
pixi add pyevm

GPU-accelerated video I/O¶

Faster video decoding uses torchcodec, which ships with the conda-forge package on Windows, Linux, and macOS — so conda/pixi installs include it automatically:

conda install -c conda-forge pyevm   # torchcodec included
pixi add pyevm

torchcodec has no Windows pip wheels, so it is not declared as a pip dependency. pip users on Linux/macOS can add it manually:

pip install pyeulervid torchcodec

Without torchcodec, pyevm automatically falls back to the OpenCV decoder.

Hardware¶

pyevm automatically selects the best available compute device:

1. CUDA — NVIDIA GPU
2. MPS — Apple Silicon GPU
3. CPU — fallback

Override with --device cuda, --device mps, or --device cpu.

Requirements¶

• Python 3.12 or later
• PyTorch 2.2 or later