

Note: for Marlin IPMP/ACGK, use 0 as the track ID Note: for dcf files, use 1 as the track index (several -key options can be used, one for each track or KID) is either a track ID in decimal or a 128-bit KID in hex, So to decrypt it using the above key, surely I would do: mp4decrypt -key 1:23b6701be98b4eea804e9b596c5937a5 -show-progress input.mp4 output.mp4

The file consists of a single h264 track in an mp4 file. I have a file which i've encrypted in CENC, and i'm trying to now decrypt it using mp4decrypt from the bento4 mp4decrypt tools.
