Converting video formats and copying tags with ffmpeg

Question

I\'ve been trying to convert some videos I took on my camera to a compressed format in order to save some storage space. I figured out how to use ffmpeg to convert the video

Answer 1

To write all metadata (global, video, audio) to a file use

ffmpeg -i in.mp4 -c copy -map_metadata 0 -map_metadata:s:v 0:s:v -map_metadata:s:a 0:s:a -f ffmetadata in.txt

To add all metadata from a file use

ffmpeg -i in.mp4 -f ffmetadata -i in.txt -c copy -map_metadata 1 out.mp4