I wanted to download some lectures from the ArtStation.com, but all I can see is a sequence of .m4f files.
Have not any idea what to do with them...
Details: ArtStation opens free access to all lectures until the end of the year. I wanted to download some, but stucked with described trouble.
You can see an example of lecture here:
Any ideas how I could download these lectures?
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get mpd from this video .
Used WidevineDecryptoron to get the key
Found key: a86a7ad76593caf07f3ad70dd20d5c12 (KID=181b33e18eb94e638e3d3a98f206da08)
See this thread --> https://forum.videohelp.com/threads/400863-Downloading-encrypted-mpd-video-files
I also was interested in this, and following the info in this post and the post you linked to (as well as other posts) I have been able to get the encripted files, and was able to decrypt the video file, the audio was trickier to do, as the key seems to change much more frequently, so by the time the video is downloaded the audio key changes. The easy fix is to just reload the page, and hit play again and copy out the one key thats different of the 3, that should be the new audio key.
Used the Chrome extension Widevine L3 Decryptor (download that repository, unzip, open Chrome go to chrome://extensions/, hit the "Developer mode" toggle, drag and drop the unziped directory to the chrome window).
I also had to replace the Widevine DLL's (close Chrome first) then go toCode:
C:\Program Files\Google\Chrome\Application\<Your Chrome Version number>\WidevineCdm\_platform_specific\win_x64
I downloaded YT-DLP and placed it inCode:
I downloaded mp4decrypt and placed it inCode:
I then used Chrome to go to the video tutorials page. Loaded up the video and ran the developer tools. In the "Console" tab I get 3 WidevineDecryptor Keys.
In the "Network" tab I search for ".mpd" and then right click on it and selectCode:
Copy/Copy link address
yt-dlp --allow-unplayable-formats "pasted link goes here"
It is now a good idea to refresh the page in Chrome, hit play on the video, and copy out the first key (the audio one) as it has likely changed since downloading the files.
I can then use mp4decrypt with one of the keys (seems to always be the 3rd one for video, and 1st one when I refreshed the page for audio) I got from the console in a previous step and it decrypts and can be opened and watched in VLC.Code:
mp4decrypt --key <KID>:<Key> video.mp4 video_decrpted.mp4
Here is an example of the decrypt comand:
mp4decrypt --key 7bf1353ce6744875910facc49da8a6c6:a779ee973a46ad8b738adeffa9f5fa0b audio.m4a audio_decrpted.m4a
Last step I use MKVtoolnixGUI to join the audio, video and subtitles together into an MKV
Last edited by filiko-floro; 5th May 2021 at 22:58.
forget poor mac and buy win pc...