Parametrage ffmpeg

• conversion au format Apple ProRes 4444 (ap4h) - vlc : -c:v prores
• conversion au format Apple ProRes 422 standard (apcn) - (plus compact) : -c:v prores -pix_fmt yuv422p10le
• h264 compatible Qt : -c:v libx264 -pix_fmt yuv420p
• h264 incompatible Qt : -c:v libx264 -pix_fmt yuv422p
• h264 incompatible Qt : -c:v libx264 : (yuv 444)
• parametrage BAB : -c:v libx264 -pix_fmt yuv420p -crf 22 -c:a aac :
• divers : -s:v 1280×720 -c:v libx264 -c:a copy -pix_fmt yuv420p -preset slow -tune animation -crf 18

• Forcer Resolution verticale paire (pour h264 - sinon plantage) : -vf scale=iw:-2
• Optimisation pour l'animation : -tune animation :

• Resize & keep Ratio: -vf “scale=1920:-2”
• Double Size: -vf “scale=2*in_w:2*in_h”
• Convert To Images Sequence: -r 25/1 (Output Filename=%a_%04d.png)
• add Tag : -vf drawtext=“fontfile=/Windows/Fonts/ariblk.ttf:text={TEXT}: fontcolor=gray: fontsize=48: x=(w-text_w-60): y=(h-text_h-60)” -codec:v dnxhd -b:v 185M -codec:a copy
• remove identical pictures in video : -vf “select='if(eq(n,0),1,gte(scene,0.00001))',setpts=N/FRAME_RATE/TB”
  • keep only defferents pictures + first picture. Usefull tu remove fixe,White or Black sequence

Documentation ffmpeg:
https://ffmpeg.org/ffmpeg.html
https://ffmpeg.org/ffmpeg-filters.html