Example Script

to encode, decode and calculate metrics

Important: If you intend to run objective metrics, then please remember to disable dithering on the decoder.

~/vnova/ffmpeg/ffmpeg \ -framerate $FPS \ -vcodec rawvideo \ -pix_fmt yuv420p \ -s $RESO \ -i $INPUT \ -vcodec lcevc_h264 \ -base_encoder x264 \ -b:v $BITRATE \ -eil_params "lcevc_tune=vmaf;dc_dithering_type=none;preset=medium;rc_pcrf_window_type=rolling" \ -f mp4 \ outputs/"$FILE"_vnova.mp4

ffmpeg \ -s $RESO \ -framerate $FPS \ -vcodec rawvideo \ -i $INPUT \ -vcodec libx264 \ -b:v $BITRATE \ -preset medium \ -g $FPS \ -f mp4 \ outputs/"$FILE"_libx.mp4

~/vnova/ffmpeg/ffmpeg -y \ -vcodec lcevc_hevc \ -disable_dithering 1 \ -i outputs/"$FILE"_vnova.mp4 \ -vcodec rawvideo \ -s $RESO \ -framerate $FPS \ -pix_fmt yuv420p \ -i $INPUT \ -filter_complex "[0:v]scale=1920x1080:flags=bicubic[main];[main][1:v]libvmaf=model_path=/path/to/vmaf_v0.6.1.pk1" \ -f null -

~/vnova/ffmpeg/ffmpeg -y \ -i outputs/"$FILE"_libx.mp4 \ -s $RESO \ -framerate $FPS \ -pix_fmt yuv420p \ -i $INPUT \ -filter_complex "[0:v]scale=1920x1080:flags=bicubic[main];[main][1:v]libvmaf" \ -f null -