FFMPEG Commands

• Cropping
• Web Convert
• Convert entire folder
• Hardware encoding

Cropping

Center Crop for Instagram:

ffmpeg -i ParticleSensor.mp4 -vf "scale=(iw*sar)*max(1080/(iw*sar)\,1080/ih):ih*max(1080/(iw*sar)\,1080/ih), crop=1080:1080" ParticleSensor_ig.mp4

 

 

Web Convert

OGV:

in_old = "path_to_vid.mp4"
in_new = ${in_old%.*}.ogv
ffmpeg -i $in_old -codec:v libtheora -qscale:v 6 -codec:a libvorbis -qscale:a 6 $in_new

Convert entire folder

for i in *.mov;
  do name=`echo "$i" | cut -d'.' -f1`
  echo "$name"
  ffmpeg -i "$i" "${name}.mp4"
done

 

Hardware encoding

Intel example command:

ffmpeg -hwaccel vaapi -hwaccel_output_format vaapi -vaapi_device /dev/dri/renderD128 -i "${invid}" -codec:v h264_vaapi ${invid%.}_testHW.mp4