ffmpeg -i 3d_dam_break.webm -vf "crop=trunc(iw/2)*2:trunc(ih/2)*2" 3d_dam_break.mp4
ffmpeg -i dinesh_2024_single_particle_swelling_N_15_buoyancy_check.webm -vf "crop=trunc(iw/2)*2:trunc(ih/2)*2" dinesh_2024_single_particle_swelling_N_15_buoyancy_check.mp4
ffmpeg -i fifty_bodies_500_density_sph_representation.webm -vf "crop=trunc(iw/2)*2:trunc(ih/2)*2" fifty_bodies_500_density_sph_representation.gif
To make movies out of images png, such as simulations movies of PySPH