docs/ffmpeg.md

Playing with ffmpeg

...to extrac, manipulate and reassmbly frames

Frames extraction

In running the command take note about original video fps

ffmpeg -i video.mp4 %05d.png

Video creation from frames

In running the command take note about original video fps

ffmpeg -framerate 30 -pattern_type glob -i '*.png' -c:v libx264 -pix_fmt yuv420p paint.mp4

Video warping from images

Using CUDA:

ffmpeg -y -fflags +genpts -r 30 -hwaccel cuda -hwaccel_output_format cuda -pattern_type glob -i '*.png' -vf "setpts=100*PTS,minterpolate=fps=24:scd=none" -pix_fmt yuv420p  -c:v h264_nvenc "test01.mp4"