In Quicktime pro you can turn off streams in movies, without deleting the stream. Is it possible to do this with a command line application like ffmpeg?
I have a bunch of video files that were recorded with both the crappy on-camera mic and a separate audio recorder. I've synched the sound and added it to the video, and now each clip has two audio streams. I want to keep the original audio, for reference and archival purposes but disable it. It's obviously done in metadata, but can it be done by ffmpeg?