Help with getting decrypt key Channel4/All4

[DrLucky]

I am trying to get the decryption keys for channel4 programs with Widevine L3 Guesser

But I am getting either output at all on the plugin or

'licenseData'

b'{"status": {"success": false, "type": "The JSON message of the request is invalid, has a wrong type value, or cannot be parsed correctly"}}'

I found this tool here, but the link no longer works
https://forum.videohelp.com/threads/411813-Channel-4-Paying-a-Visit

I see a variety of other posts with different advice several years old, I am wondering what the best method is now.
Thank you for any assistance!

[billybanana]

There's a few working options to see on this forum

UK Free to Air Downloader
https://forum.videohelp.com/threads/411884-UK-Free-to-Air-Downloader

Devine
https://forum.videohelp.com/threads/414154-Devine-Modular-Movie-TV-and-Music-Archival-Software
and add services shared by stabbedbybrick to go with it
https://cdm-project.com/stabbedbybrick/devine-services

[2nHxWW6GkN1l916N3ayz8HQoi]

I am trying to get the decryption keys for channel4 programs with Widevine L3 Guesser

What's the video URL?

[DrLucky]

I am trying to get the decryption keys for channel4 programs with Widevine L3 Guesser

What's the video URL?

https://www.channel4.com/programmes/8-out-of-10-cats-does-countdown/on-demand/74080-003

but I would like to learn how, as there are many episodes I'd like to archive

[DrLucky]

What's the video URL?

https://www.channel4.com/programmes/8-out-of-10-cats-does-countdown/on-demand/74080-003

[aqzs]

https://www.channel4.com/programmes/8-out-of-10-cats-does-countdown/on-demand/74080-003

Mobile API :

name:  8.Out.of.10.Cats.Does.Countdown.E3
pssh:  AAAASXBzc2gAAAAA7e+LqXnWSs6jyCfc1R0h7QAAACkIARIQr1ZFZ69yqownt7U6VrLx4xoIcmJtY2g0dHYiBzQ1ODQxNDMyAA==
keys:  ['af564567af72aa8c27b7b53a56b2f1e3:cc3a18c5c30bce9628603b5fe8d518b7', 'af564567af72aa8c27b7b53a56b2f1e3:cc3a18c5c30bce9628603b5fe8d518b7', 'af564567af72aa8c27b7b53a56b2f1e3:cc3a18c5c30bce9628603b5fe8d518b7']

N_m3u8DL-RE "http://ak.dash01.stream.c4assets.com/wvmod-stream/CH4_33_05_42_74080003001001_001_HD.mpd?c3.ri=13631109108534157088" --save-name "8.Out.of.10.Cats.Does.Countdown.E3" -sv best -sa all -ss all -mt -M format=mkv --log-level OFF --key af564567af72aa8c27b7b53a56b2f1e3:cc3a18c5c30bce9628603b5fe8d518b7 --key af564567af72aa8c27b7b53a56b2f1e3:cc3a18c5c30bce9628603b5fe8d518b7 --key af564567af72aa8c27b7b53a56b2f1e3:cc3a18c5c30bce9628603b5fe8d518b7

Desktop API :

name:  8.out.of.10.cats.does.countdown.E1
pssh:  AAAAZnBzc2gAAAAA7e+LqXnWSs6jyCfc1R0h7QAAAEYIARIQAAAAAAAAAAAAAAAABFhBNBoIcmJtY2g0dHYiJDAwMDAwMDAwLTAwMDAtMDAwMC0wMDAwLTAwMDAwNDU4NDEzNDIA
keys:  ['00000000000000000000000004584134:5a91d9aa73efe5351697c10a693c111e']

yt-dlp "https://subs.channel4.com/74080_003_1/1107741c51d5ad316d2d009ed2989084.srt" -o 8.out.of.10.cats.does.countdown.E1.srt
N_m3u8DL-RE "https://ak-jos-c4assets-com.akamaized.net/CH4_43_02_900_74080003001001_001/CH4_43_02_900_74080003001001_001_J01.ism/stream.mpd?c3.ri=13508667493480473916&mpd_segment_template=time&filter=%28type%3D%3D%22video%22%26%26%28%28DisplayHeight%3E%3D288%29%26%26%28systemBitrate%3C4800000%29%29%29%7C%7Ctype%21%3D%22video%22&ts=1725476996&e=600&st=GwbxhiMz9PbscBeO1n2TzgBxcCJcC9k5TmyBC1DpSGc" --save-name "8.out.of.10.cats.does.countdown.E1" --mux-import path=8.out.of.10.cats.does.countdown.E1.srt:lang=eng:name="English" -sv best -sa all -ss all -mt -M format=mkv --log-level OFF --key 00000000000000000000000004584134:5a91d9aa73efe5351697c10a693c111e

[DrLucky]

https://www.channel4.com/programmes/8-out-of-10-cats-does-countdown/on-demand/74080-003

Mobile API :

name:  8.Out.of.10.Cats.Does.Countdown.E3
pssh:  AAAASXBzc2gAAAAA7e+LqXnWSs6jyCfc1R0h7QAAACkIARIQr1ZFZ69yqownt7U6VrLx4xoIcmJtY2g0dHYiBzQ1ODQxNDMyAA==
keys:  ['af564567af72aa8c27b7b53a56b2f1e3:cc3a18c5c30bce9628603b5fe8d518b7', 'af564567af72aa8c27b7b53a56b2f1e3:cc3a18c5c30bce9628603b5fe8d518b7', 'af564567af72aa8c27b7b53a56b2f1e3:cc3a18c5c30bce9628603b5fe8d518b7']

N_m3u8DL-RE "http://ak.dash01.stream.c4assets.com/wvmod-stream/CH4_33_05_42_74080003001001_001_HD.mpd?c3.ri=13631109108534157088" --save-name "8.Out.of.10.Cats.Does.Countdown.E3" -sv best -sa all -ss all -mt -M format=mkv --log-level OFF --key af564567af72aa8c27b7b53a56b2f1e3:cc3a18c5c30bce9628603b5fe8d518b7 --key af564567af72aa8c27b7b53a56b2f1e3:cc3a18c5c30bce9628603b5fe8d518b7 --key af564567af72aa8c27b7b53a56b2f1e3:cc3a18c5c30bce9628603b5fe8d518b7

Desktop API :

name:  8.out.of.10.cats.does.countdown.E1
pssh:  AAAAZnBzc2gAAAAA7e+LqXnWSs6jyCfc1R0h7QAAAEYIARIQAAAAAAAAAAAAAAAABFhBNBoIcmJtY2g0dHYiJDAwMDAwMDAwLTAwMDAtMDAwMC0wMDAwLTAwMDAwNDU4NDEzNDIA
keys:  ['00000000000000000000000004584134:5a91d9aa73efe5351697c10a693c111e']

yt-dlp "https://subs.channel4.com/74080_003_1/1107741c51d5ad316d2d009ed2989084.srt" -o 8.out.of.10.cats.does.countdown.E1.srt
N_m3u8DL-RE "https://ak-jos-c4assets-com.akamaized.net/CH4_43_02_900_74080003001001_001/CH4_43_02_900_74080003001001_001_J01.ism/stream.mpd?c3.ri=13508667493480473916&mpd_segment_template=time&filter=%28type%3D%3D%22video%22%26%26%28%28DisplayHeight%3E%3D288%29%26%26%28systemBitrate%3C4800000%29%29%29%7C%7Ctype%21%3D%22video%22&ts=1725476996&e=600&st=GwbxhiMz9PbscBeO1n2TzgBxcCJcC9k5TmyBC1DpSGc" --save-name "8.out.of.10.cats.does.countdown.E1" --mux-import path=8.out.of.10.cats.does.countdown.E1.srt:lang=eng:name="English" -sv best -sa all -ss all -mt -M format=mkv --log-level OFF --key 00000000000000000000000004584134:5a91d9aa73efe5351697c10a693c111e

Can I ask how you got this key? I am planning to need all of them for this series and would like to know how to do it myself

[2nHxWW6GkN1l916N3ayz8HQoi]

but I would like to learn how, as there are many episodes I'd like to archive

Here are the 155 episodes using desktop api keys. I got rid of the manifest since it's useless. It's time dependent.

cmds.txt

[DrLucky]

but I would like to learn how, as there are many episodes I'd like to archive

Here are the 155 episodes using desktop api keys. I got rid of the manifest since it's useless. It's time dependent.


[Attachment 81974 - Click to enlarge]

wow, this is amazing, thank you!
I still would like to learn, but as these are time dependent, I'll get to them first

[2nHxWW6GkN1l916N3ayz8HQoi]

I still would like to learn

You already received an answer. Right in second post

There's a few working options to see on this forum

UK Free to Air Downloader
https://forum.videohelp.com/threads/411884-UK-Free-to-Air-Downloader

Devine
https://forum.videohelp.com/threads/414154-Devine-Modular-Movie-TV-and-Music-Archival-Software
and add services shared by stabbedbybrick to go with it
https://cdm-project.com/stabbedbybrick/devine-services

Read the sticky threads to learn how to use those tools. If you want to do it manually for each episode, check the extractor key tools:
- https://forum.videohelp.com/threads/414140-%5BRelease%5D-Widevine-L3-Guesser-Extension...-Chrome-All-OS
- https://forum.videohelp.com/threads/415503-%5Brelease%5D-AllHellGui
- https://forum.videohelp.com/threads/415485-%5BRelease%5D-WidevineFetch-Keys-from-just-...y-Lic-Wrapping
- https://cdrm-project.com/extension

Experiment with all tools. Each one of them has detailed documentation.

As something extra to bill's comment, an additional tool for channel4 is widefrog

python widefrog.py "https://www.channel4.com/programmes/8-out-of-10-cats-does-countdown"