Find out rotation metadata from video in ffmpeg
Solution 1:
Applied to your question, in concrete terms, you can get the rotation by:
ffprobe -loglevel error -select_streams v:0 -show_entries stream_tags=rotate -of default=nw=1:nk=1 -i in.mov
Legend:
-loglevel error
: only show the rotate field, no other info.
-select_streams v:0
: process the first video stream (ignore if multiple video streams are present)
-show_entries stream_tags=rotate
: returns the rotate information from the input video
-of default=nw=1:nk=1
: use default output format and don't show anything else, i.e. no-wrappers (nw) and no key (nk)
Solution 2:
Use ffprobe, like this.
ffprobe -i in.mov
This should result in showing a "rotate:" field somewhere in the output if such a field is present in the file.