# photo
1. Convert all to jpeg with `convert 1.png 1.jpg`.
2. Use jpegoptim `jpegoptim 1.jpg`.
3. Compress jpeg `mogrify -quality 80 1.jpg`.
4. Scale down jpeg `mogrify -resize 2073600@ 1.jpg`.

# video
1. Install `mesa-dri-drivers` for VAAPI support. check with `vainfo`.
2. convert with `ffmpeg -i ./1.MOV -vaapi_device /dev/dri/renderD128 -vf 'format=nv12,hwupload' -c:v hevc_vaapi -global_quality 25 -ac 2 -c:a aac -strict -2 -b:a 128k ./1.mkv`. To reduce size increate `global_quality` value.