not sure if automator can do it but you could have a look at QTCoffee ( https://www.3am.pair.com/QTCoffee.html )
if you download and install it (and asssuming it works) then you could use applescript to make a “droplet” as below
FYI … i just copied and pasted this entire script staight off Apple’s “Applescript Resources” website at https://www.apple.com/applescript/guidebook/sbrt/pgs/sbrt.09.htm
then added the single ine of code second from bottom >do shell script (“modmovie ‘” & (POSIX path of this_item) & “‘ -rotate 180 -save-in-place”)<
1. download and install QTCoffee
2. open the application "Script Editor" in /Applications/AppleScript
3. copy and paste the full script below
4. choose File>Save As… set the File Format popup to “application”, give it a name and save it somewhere accessible
5. drag and drop a test clip on it and see if it works … if its good, drag and drop the folder containg all the clips on it
6. if it it doesn’t work, or your machine explodes, it’s not my fault 🙂
——————————————-
—- code follows below —–
——————————————-
— the list of file types which will be processed
— eg: {“PICT”, “JPEG”, “TIFF”, “GIFf”}
property type_list : {“MOV”}
— since file types are optional in Mac OS X,
— check the name extension if there is no file type
— eg: {“txt”, “text”, “jpg”, “jpeg”}
property extension_list : {“mov”}
— This droplet processes both files or folders of files dropped onto the applet
on open these_items
repeat with i from 1 to the count of these_items
set this_item to (item i of these_items)
set the item_info to info for this_item
if folder of the item_info is true then
process_folder(this_item)
else if (alias of the item_info is false) and