video image still corrupted after mp4decrypt

[abacaxi]

Hi,

is this possible to have this as a result after decoding with mp4decrypt ?


i used yt-dlp and bento.

there was no pssh and licence in the mpd.

i got the pssh from the keyID by PSSH box
and the licence and header from a POST widevone request
from all that i got the KEYS.

mp4decrypt works with no errors, but still after it, i cannont see the video, like if it was still undecrypted...

the strangest part is that it worked on two videos, and since the third video, i got all of them like this...

in advance thanks all for your help.

[Iridule]

it is still encrypted. I found it easier to get PSSH using EME2 script for tampermonkey and looking at console in developer tools. I think you have got the incorrect key. I found it easier to get the license by using f12 in developer tools and typing key works...lic, license, widvine, ott, cenc, and so on eventually one will work. Then you can work on getting the keys once you obtain correct PSSH, LIC URL, and MPD. If it worked on two other videos perhaps there was some error in the mp4decrypt command. I am still learning myself. Good luck.

[lomero]

use shaka instead mp4decrypt

[abacaxi]

thanks iridule

it was not the good pssh, i did the base64 > hex method to find the good one from the long init data.

and it works, video decrypted !

[cedric8528]

Your PSSH is too long....

Try to get the Keys with this one

AAAAUnBzc2gAAAAA7e+LqXnWSs6jyCfc1R0h7QAAADIIARIQHPD97q5nXx+Ys2Jkc3P9dxoIbW92aWRvbmUiEL9W9AKHnUBKgRh909rAJwAyAA==

[Iridule]

thanks iridule

it was not the good pssh, i did the base64 > hex method to find the good one from the long init data.

and it works, video decrypted !

Nice.