help with finding keys in mpd

[good_anyutka]

Hi, everyone.

I have encoded mp4 (some multi-colored stripes) and MPD file. Could you advise me, which key(s) from MPD piece (below) do I need for mp4decrypt command?

<ContentProtection schemeIdUri="urn:mpeg:dash:mp4protection:2011" value="cenc" cenc:default_KID="343fc3d2-b8f7-3636-aa80-6fd99b41e9da"></ContentProtection>

<ContentProtection schemeIdUri="urn:uuid:9a04f079-9840-4286-ab92-e65be0885f95" value="MSPR 2.0">
                <cenc:pssh>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</cenc:pssh>
                <mspr:pro>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</mspr:pro>
</ContentProtection>
<ContentProtection schemeIdUri="urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed" value="Widevine">
<cenc:pssh>AAAANHBzc2gAAAAA7e+LqXnWSs6jyCfc1R0h7QAAABQIARIQND/D0rj3NjaqgG/Zm0Hp2g==</cenc:pssh>

[Obo]

There are no decryption keys hidden in MPD's.

Your browser uses the PSSH (presumably from the Widevine section) from the MPD to generate a so called license request, that is sent to a (for all of us unknown) license server. The license server in turn returns an encrypted message, that holds the keys to decrypt your video.

A browser extension like WidevineProxy2 can fetch the keys for you. Or if you are lucky a caching service has the keys, if you input the PSSH. Otherwise let us know the URL of the video (not the URL of the MPD, the URL of the video), and maybe someone can help to fetch the keys.

[good_anyutka]

There are no decryption keys hidden in MPD's.

Your browser uses the PSSH (presumably from the Widevine section) from the MPD to generate a so called license request, that is sent to a (for all of us unknown) license server. The license server in turn returns an encrypted message, that holds the keys to decrypt your video.

A browser extension like WidevineProxy2 can fetch the keys for you. Or if you are lucky a caching service has the keys, if you input the PSSH. Otherwise let us know the URL of the video (not the URL of the MPD, the URL of the video), and maybe someone can help to fetch the keys.

The problem is it is DRM-protected, so I can't give URL

[Obo]

DRM protection is the whole purpose of using content encryption. If you are not willing to tell us the URL, then so be it (the forum rules allow links to free services, regardless of DRM protection).

The best advice for you then probably is: use the browser extension WidevineProxy2 (https://forum.videohelp.com/threads/416316-%5BRelease%5D-WidevineProxy2-Extension-Bypa...s-Lic-wrapping)

[good_anyutka]

DRM protection is the whole purpose of using content encryption. If you are not willing to tell us the URL, then so be it (the forum rules allow links to free services, regardless of DRM protection).

The best advice for you then probably is: use the browser extension WidevineProxy2 (https://forum.videohelp.com/threads/416316-%5BRelease%5D-WidevineProxy2-Extension-Bypa...s-Lic-wrapping)

Thank you a lot! The problem is it is not free service, it is subscription-based one.

[good_anyutka]

DRM protection is the whole purpose of using content encryption. If you are not willing to tell us the URL, then so be it (the forum rules allow links to free services, regardless of DRM protection).

The best advice for you then probably is: use the browser extension WidevineProxy2 (https://forum.videohelp.com/threads/416316-%5BRelease%5D-WidevineProxy2-Extension-Bypa...s-Lic-wrapping)

actually I have one video from free service:
https://player.eyefilm.nl/en/films/hold-back-the-sea

can you help me with key for it?

[iamghost]

--key ce1ae4b3267b446299f4b0b2eea7ac2a:31827947897f973133bd255a8f44171c

[good_anyutka]

--key ce1ae4b3267b446299f4b0b2eea7ac2a:31827947897f973133bd255a8f44171c

Many thanks to you!

[good_anyutka]

--key ce1ae4b3267b446299f4b0b2eea7ac2a:31827947897f973133bd255a8f44171c

Could you please briefly explain me how did you do it?

[Lupine Assassin]

--key ce1ae4b3267b446299f4b0b2eea7ac2a:31827947897f973133bd255a8f44171c

I've been attempting to grab this video too, but each time I do there's no audio. Please help.

[IceM]

--key ce1ae4b3267b446299f4b0b2eea7ac2a:31827947897f973133bd255a8f44171c

I've been attempting to grab this video too, but each time I do there's no audio. Please help.

Try the command comes from WidevineProxy2, it works for me

N_m3u8DL-RE "https://fl-global-unified1.airflow.jetstre.am/a/0/unified/audp9-prod/kop1218485-lagelanden-en-xx-24fps-drm.ism/.mpd" -H "User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:128.0) Gecko/20100101 Firefox/128.0" -H "Accept: */*" -H "Origin: null" -H "Referer: https://player.eyefilm.nl/" -H "DNT: 1" -H "Sec-GPC: 1" --key ce1ae4b3267b446299f4b0b2eea7ac2a:31827947897f973133bd255a8f44171c --use-shaka-packager -M format=mkv

[Lupine Assassin]

Just tried your code, and the finished file is all pixelated. It shows the same errors I was getting before:
02:55:25.444 WARN : Muxing to _2025-04-26_02-54-00.MUX.mkv
02:55:25.872 WARN : [h264 @ 000001b1be32e700] top block unavailable for requested intra mode -1
02:55:25.873 WARN : [h264 @ 000001b1be32e700] error while decoding MB 0 0, bytestream 1378
02:55:25.961 WARN : [aac @ 000001b1c164d040] skip_data_stream_element: Input buffer exhausted before END element found

[cedric8528]

Command don't work for me...need to use more steps

Download mpd with yt-dlp

yt-dlp --allow-u "mpd"

Decrypt video with mp4decrypt

mp4decrypt --key ce1ae4b3267b446299f4b0b2eea7ac2a:31827947897f973133bd255a8f44171c video.mp4 output.mp4

Decrypt audio with Shaka

shaka-packager --enable_raw_key_decryption --keys key_id=ce1ae4b3267b446299f4b0b2eea7ac2a:key=31827947897f973133bd255a8f44171c stream=audio,in=audio.m4a,output=output.m4a

Merge with ffmpeg

ffmpeg -i output.mp4 -i output.m4a -c copy new.mp4

[IceM]

Command don't work for me...need to use more steps

I don't understand why the command doesn't work for you.

09:31:00.968 INFO : Start downloading...Vid 1920x1080 | 5923 Kbps | video_eng=5923086 | avc1.640028 | Main
09:31:00.994 WARN : Type: cbcs
09:31:00.995 WARN : PSSH(WV): EhDOGuSzJntEYpn0sLLup6wqGgVlemRybUjzxombBg==
09:31:00.996 WARN : KID: ce1ae4b3267b446299f4b0b2eea7ac2a
09:31:00.997 WARN : Reading media info...
09:31:01.038 INFO : [0x1]: Video, h264 (avc1), 1920x1080
09:31:43.695 INFO : Binary merging...
09:31:45.143 WARN : Type: cbcs
09:31:45.145 WARN : PSSH(WV): EhDOGuSzJntEYpn0sLLup6wqGgVlemRybUjzxombBg==
09:31:45.146 WARN : KID: ce1ae4b3267b446299f4b0b2eea7ac2a
09:31:45.258 INFO : Decrypting using SHAKA_PACKAGE...
09:31:54.369 INFO : Start downloading...Aud audio_eng=127881 | 127 Kbps | mp4a.40.2 | en | 2CH | Main
09:31:54.409 WARN : Type: cbcs
09:31:54.411 WARN : PSSH(WV): EhDOGuSzJntEYpn0sLLup6wqGgVlemRybUjzxombBg==
09:31:54.413 WARN : KID: ce1ae4b3267b446299f4b0b2eea7ac2a
09:31:54.415 WARN : Reading media info...
09:31:54.456 INFO : [0x1]: Audio, aac (mp4a), 127 kb/s
09:31:59.917 INFO : Binary merging...
09:32:00.104 WARN : Type: cbcs
09:32:00.107 WARN : PSSH(WV): EhDOGuSzJntEYpn0sLLup6wqGgVlemRybUjzxombBg==
09:32:00.108 WARN : KID: ce1ae4b3267b446299f4b0b2eea7ac2a
09:32:00.110 INFO : Decrypting using SHAKA_PACKAGE...
09:32:00.733 WARN : _2025-04-26_09-30-56.en.mp4
09:32:00.733 WARN : _2025-04-26_09-30-56.en.m4a
09:32:00.735 WARN : Muxing to _2025-04-26_09-30-56.MUX.mkv
09:32:03.397 WARN : Cleaning files...
09:32:03.501 WARN : Rename to _2025-04-26_09-30-56.mkv
09:32:03.724 INFO : Done

N_m3u8DL-RE.exe --v
09:36:25.441 INFO : N_m3u8DL-RE (Beta version) 20241123

shaka-packager.exe -> 13.01.2025

[Lupine Assassin]

Okay, after upgrading to the latest version of shaka-packager, your code worked. Thanks so much, IceM!

[IceM]

Okay, after upgrading to the latest version of shaka-packager, your code worked. Thanks so much, IceM!

Cool, thanks for your feedback

[cedric8528]

Thanks IceM

Version of Shaka also too old...