# Example script

{% hint style="warning" %}
Important: If you intend to run objective metrics, then please remember to disable dithering on the decoder.
{% endhint %}

`~/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 -`


---

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