mp4decrypt
mp4decrypt
is a tools that decrypts an MP4 file (multiple encryption schemes are supported.)
Running the tool without any argument will print out a summary of the tool’s command line options and parameters.
Usage
MP4 Decrypter - Version 1.4
(Bento4 Version 1.4.3.0)
(c) 2002-2015 Axiomatic Systems, LLC
usage: mp4decrypt [options] <input> <output>
Options are:
--show-progress : show progress details
--key <id>:<k>
<id> is either a track ID in decimal or a 128-bit KID in hex,
<k> is a 128-bit key in hex
(several --key options can be used, one for each track or KID)
note: for dcf files, use 1 as the track index
note: for Marlin IPMP/ACGK, use 0 as the track ID
note: KIDs are only applicable to some encryption methods like MPEG-CENC
--fragments-info <filename>
Decrypt the fragments read from <input>, with track info read
from <filename>.