ffmpeg -i input.mpf -vf "transpose=1" output.mp4

For the transpose parameter you can pass:

• 0 = 90CounterCLockwise and Vertical Flip (default)
• 1 = 90Clockwise
• 2 = 90CounterClockwise
• 3 = 90Clockwise and Vertical Flip

To get volume level of the media file in command line I use:

LINUX

ffmpeg -i audo.mp3 -af "volumedetect" -f null /dev/null

WINDOWS

ffmpeg -i audo.mp3 -af "volumedetect" -f null NUL

To normalize

ffmpeg -i input.mp3 -af "volume=5dB" output.mp3

Normalize inside a video file

ffmpeg -i video.avi -af "volume=5dB" -c:v copy -c:a libmp3lame -q:a 2 output.avi