You must use scale
and transpose
options within same -vf
parameters like that:
ffmpeg -i input.mp4 -vf "scale=640:480,transpose=1" output.mp4
For rotation operations, transpose keyword must be used. Available parameters:
- 0 for rotate 90-deg counter-clockwise and vertically flip
- 1 for rotate 90-deg clockwise
- 2 for rotate 90-deg counter-clockwise
- 3 for rotate 90-deg clockwise and vertically flip