Hi, I am looking for a way to write / updae the header info in Quicktime Prores files, for example, I want to update 'QuickTime ChannelLayout Tags', but looking in the Exiftool docs, it says 'writable = no'. Just wanted to double check I am reading this correctly, any way to do this please?
Kind regards.
If the tag has a "no" in the writable column, then exiftool cannot write it.
You'll probably have to look at ffmpeg. This StackExchange question (https://video.stackexchange.com/questions/16660/) seems similiar to yours.