[shadowolder]

Hi guys! I found cool software bento4_com/ (mp4decrypt), which can decrypt mp4 drm protected files, but i'm getting error...

When i'm typing mp4decrypt.exe ddp-192.mp4 ddp-192_final.mp4 --key 58b58c58-400b-11e7-a009-842b2b5247fa
I'm getting ERROR: invalid argument for --key option


My manifest.mpd file is https://pastebin.com/m887CZHe
And here is file info of my encrypted mp4 file:
File:
major brand: iso6
minor version: 1
compatible brand: mp42
compatible brand: dash
compatible brand: msdh
compatible brand: msix
compatible brand: iso6
compatible brand: avc1
compatible brand: isom
fast start: yes

Movie:
duration: 0 ms
time scale: 48000
fragments: yes

Found 1 Tracks
Track 1:
flags: 7 ENABLED IN-MOVIE IN-PREVIEW
id: 1
type: Audio
duration: 0 ms
language: und
media:
sample count: 0
timescale: 48000
duration: 0 (media timescale units)
duration: 0 (ms)
bitrate (computed): 192.000 Kbps
sample count with fragments: 78620
duration with fragments: 120760320
duration with fragments: 2515840 (ms)
Sample Description 0
[ENCRYPTED]
Coding: enca
Scheme Type: cenc
Scheme Version: 65536
Scheme URI:
Protection System Details:
[schi] size=8+32
[tenc] size=12+20
default_isProtected = 1
default_Per_Sample_IV_Size = 8
default_KID = [58 b5 8c 58 40 0b 11 e7 a0 09 84 2b 2b 52 47 fa]
Bytes: 000000000000000100000000000000000002001000000000bb 8000000000000d646563330600200f000000005073696e6600 00000c66726d6165632d33000000147363686d000000006365 6e630001000000000028736368690000002074656e63000000 000000010858b58c58400b11e7a009842b2b5247fa
Coding: ec-3 (Dolby Digital Plus (Enhanced AC-3))
Sample Rate: 48000
Sample Size: 16
Channels: 2
What i am doing wrong? How i can decrypt it to normal file?

[shadowolder]

Anybody? Please.

[ihryjfbd]

Do the other commands work?
--show-progress

mp4decrypt [options] <input> <output>

Try
mp4decrypt.exe --key 58b58c58-400b-11e7-a009-842b2b5247fa ddp-192.mp4 ddp-192_final.mp4

[foultayeb]

Do the other commands work?
--show-progress

mp4decrypt [options] <input> <output>

Try
mp4decrypt.exe --key 58b58c58-400b-11e7-a009-842b2b5247fa ddp-192.mp4 ddp-192_final.mp4

how to use this commande ?
when i enter to the mp4decrypt it didn't open, how to open it ?

[ihryjfbd]

how to use this commande ?
when i enter to the mp4decrypt it didn't open, how to open it ?

You can't open it, it doesn't have a frontend as it's a commandline app to be used within the dos command line aka cmd.exe

[foultayeb]

I had the same problem hhhhhhhhhh
ERROR: invalid argument for --key option

[foultayeb]

I found the solution but the mp4decypt don"t work :mad:
Example:
mp4decrypt --key 0:000102030405060708090a0b0c0d0e0f --show-progress my_encrypted_file.mp4 my_decrypted_file.mp4

[ihryjfbd]

What info does https://www.bento4.com/documentation/mp4info/
display?

[foultayeb]

What info does https://www.bento4.com/documentation/mp4info/
display?

The file don't decrypt at all still the same

[tuongraokc]

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