ffmpeg: Output to the same folder as source with recursive input?

问题

I have a lot of gifs I want converted to webms in many sub directories, and I have this script which will do it, but it will output to the directory where the script is located:

for /r %%a in ("*.gif") do ffmpeg -i "%%a" -c:v libvpx -crf 12 -b:v 4000k "%%~na.webm"
pause

I've tried a bunch of things, but I can't figure out how to get the output to land in the same sub directory as the input file so I can maintain the folder structure.

Edit: it's a Windows batch file I'm using.

回答1:

You are missing two command modifiers for your output filename.

"%%~dpna.webm"

来源：https://stackoverflow.com/questions/33266300/ffmpeg-output-to-the-same-folder-as-source-with-recursive-input