How do I get a decryption key. I have the PSSH, license URL, and headers

[xomuz]

video: https://vod.tvp.pl/programy,88/kolo-fortuny-odcinki,273642/odcinek-2022,S02E2022,2077062

PSSH:

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

license URL:

https://vod.tvp.pl/api/products/2077062/drm/widevine/external?platform=BROWSER&type=MOVIE

headers:

API-CorrelationId: client_f62b600a-8268-4a1b-9f23-7e931ed7bba8
Accept: */*
Accept-Encoding: gzip, deflate, br, zstd
Accept-Language: en-GB,en;q=0.9,en-US;q=0.8
Connection: keep-alive
Content-Length: 2
Cookie: TVPV4_HBROW=dmMMHQH8pMmHVr4s85LOpvbbfxVgOpml; uid=aed8661e7e3160547317e85cac28aeb1; TVPV4_HBROW=lQ00vz0ZbEFcNnkEBUm6oruR3KzYtjci; _snrs_uuid=9357e97e-6c85-4b97-88e4-af1e0441d833; _snrs_puuid=9357e97e-6c85-4b97-88e4-af1e0441d833; TVPtcs22custom=[]; TVPtcs22=CQSBNYAQSBNYAFfADAENBsFsAP_gAEPgAB5YLPtT_G__bWlr-T73aftkeYxP99h77sQxBgbJE-4FzLvW_JwXx2E5NAzatqIKmRIAu3TBIQNlHJDURVCgaogVryDMaEyUoTNKJ6BkiFMRI2NYCFxvm4tjeQCY5vr991c1mB-t7dr83dzyy4hHn3a5_2S1WJCdAYetDfv8bBOT-9IOd_x8v4v4_F7pE2-eS1n_pWvp7D9-Yls_9X299_bbff7Pn_ful_-_X_vf_n37v943n77v__gs8ACYaFRBGWRACESgYQQIAFBWEBFAgCAABIGiAgBMGBTkDABdYSIAQAoABggBAACDAAEAAAkACEQAUAFAgAAgECgADAAgGAgAYGAAMAFgIBAACA6BimBBAIFgAkZkUGmBKAAkEBLZUIJAECCuEIRZ4BBAiJgoAAAQACgAAQHgsBiSQErEggC4gmgAAIAAAogQIEUnZgCCgM2WovBk-jK0wDB8wTNKYBkARBGRkmxCb9ph45CiEAAA.f_wAAAAABf_wAAAA; TVPtcs22ver=108; TVP_GUEST_SESS=c3b42b1d61e5c03cd5420cfc35dc0e73ded688ebcdf7c940f7a557192d09982fc469cc3bfa95ed3ca975a0ca5d8b2b250f6e08b0d9d2a6e49b664fd994300367; v3CMSV4_PROD_HUSR=UlLzlDsvKIDYj.GmnSdPu0; v3CMSV4_PROD_HGRP=AAqDBeQuwBN05lGB/n4Vo.; v3CMSV4_PROD_HSES=kjAqCS8JYEYZSqxiKK1nXimL25ztre0G; _snrs_sb=ssuid:1882ee13-b7ba-49b1-90d7-51dab621526a&leaves:1748295361; _snrs_sa=ssuid:1882ee13-b7ba-49b1-90d7-51dab621526a&appear:1748288488&sessionVisits:11; _snrs_p=host:vod.tvp.pl&permUuid:9357e97e-6c85-4b97-88e4-af1e0441d833&uuid:9357e97e-6c85-4b97-88e4-af1e0441d833&identityHash:&user_hash:&init:1747758655&last:1748276307.293&current:1748295361&uniqueVisits:2&allVisits:19&globalControlGroup:false; AWSALB=Q+f0Bit1MSsEbaizyBXAmzNIyrf1Pf2nu/YLRZXaT1NeOzubm38mCFgFwR5fp7y0+xucfWF5rRcoLcB8u2a0Ep+vQGlELgmD97fQ0P1RlcHI1PDgHWD4YCPsA0Dp; AWSALBCORS=Q+f0Bit1MSsEbaizyBXAmzNIyrf1Pf2nu/YLRZXaT1NeOzubm38mCFgFwR5fp7y0+xucfWF5rRcoLcB8u2a0Ep+vQGlELgmD97fQ0P1RlcHI1PDgHWD4YCPsA0Dp
Host: vod.tvp.pl
Origin: https://vod.tvp.pl
Referer: https://vod.tvp.pl/programy,88/kolo-fortuny-odcinki,273642/odcinek-2022,S02E2022,2077062
Sec-Fetch-Dest: empty
Sec-Fetch-Mode: cors
Sec-Fetch-Site: same-origin
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.36 Edg/136.0.0.0
sec-ch-ua: "Chromium";v="136", "Microsoft Edge";v="136", "Not.A/Brand";v="99"
sec-ch-ua-mobile: ?0
sec-ch-ua-platform: "Windows"

CDRM Project error:

An error occurred processing PSSH

Could not parse data as a PSSH Box nor a PlayReady Object

Any help with how to do this would be great

[zxx511]

pssh should be short

[zxx511]

PSSH: AAAAOnBzc2gAAAAA7e+LqXnWSs6jyCfc1R0h7QAAABoIARIQ4n JccRrORc+SAc7o7DsXSEjj3JWbBg==
License URL: https://vod.tvp.pl/api/products/2077062/drm/widevine/external?platform=BROWSER&type=MOVIE

--key e2725c711ace45cf9201cee8ec3b1748:506966e8a830df86f 1aebe33b83ff962

[xomuz]

PSSH: AAAAOnBzc2gAAAAA7e+LqXnWSs6jyCfc1R0h7QAAABoIARIQ4n JccRrORc+SAc7o7DsXSEjj3JWbBg==
License URL: https://vod.tvp.pl/api/products/2077062/drm/widevine/external?platform=BROWSER&type=MOVIE

--key e2725c711ace45cf9201cee8ec3b1748:506966e8a830df86f 1aebe33b83ff962

It doesn't work. It's still encrypted

[Obo]

That's the key the license server spits out with your information for me too:

e2725c711ace45cf9201cee8ec3b1748:506966e8a830df86f1aebe33b83ff962

If that key doesn't decrypt the video there's either something wrong with the data you collected or with your decryption workflow. Show what you do to decrypt the video. Saying "It doesn't work" won't decrypt it...

[xomuz]

That's the key the license server spits out with your information for me too:

e2725c711ace45cf9201cee8ec3b1748:506966e8a830df86f1aebe33b83ff962

If that key doesn't decrypt the video there's either something wrong with the data you collected or with your decryption workflow. Show what you do to decrypt the video. Saying "It doesn't work" won't decrypt it...

I downloaded audio and video with yt-dlp:

yt-dlp --allow-u -f 192 "https://vod.tvp.pl/programy,88/kolo-fortuny-odcinki,273642/odcinek-2022,S02E2022,2077062"
yt-dlp --allow-u -f 3803 "https://vod.tvp.pl/programy,88/kolo-fortuny-odcinki,273642/odcinek-2022,S02E2022,2077062"

merged with ffmpeg:

ffmpeg -i video.mp4 -i audio.m4a -c copy encrypted.mp4

mp4decrypter:

mp4decrypt --key e2725c711ace45cf9201cee8ec3b1748:506966e8a830df86f1aebe33b83ff962 encrypted.mp4 decrypted.mp4

[loadtheCD]

That's the key the license server spits out with your information for me too:

e2725c711ace45cf9201cee8ec3b1748:506966e8a830df86f1aebe33b83ff962

If that key doesn't decrypt the video there's either something wrong with the data you collected or with your decryption workflow. Show what you do to decrypt the video. Saying "It doesn't work" won't decrypt it...

I downloaded audio and video with yt-dlp:

yt-dlp --allow-u -f 192 "https://vod.tvp.pl/programy,88/kolo-fortuny-odcinki,273642/odcinek-2022,S02E2022,2077062"
yt-dlp --allow-u -f 3803 "https://vod.tvp.pl/programy,88/kolo-fortuny-odcinki,273642/odcinek-2022,S02E2022,2077062"

merged with ffmpeg:

ffmpeg -i video.mp4 -i audio.m4a -c copy encrypted.mp4

mp4decrypter:

mp4decrypt --key e2725c711ace45cf9201cee8ec3b1748:506966e8a830df86f1aebe33b83ff962 encrypted.mp4 decrypted.mp4

I believe your order of operations might be incorrect. You’ll need to decrypt the video and audio separately first, then merge them after decryption. Merging them beforehand likely won’t work as expected.

[xomuz]

That's the key the license server spits out with your information for me too:

e2725c711ace45cf9201cee8ec3b1748:506966e8a830df86f1aebe33b83ff962

If that key doesn't decrypt the video there's either something wrong with the data you collected or with your decryption workflow. Show what you do to decrypt the video. Saying "It doesn't work" won't decrypt it...

I downloaded audio and video with yt-dlp:

yt-dlp --allow-u -f 192 "https://vod.tvp.pl/programy,88/kolo-fortuny-odcinki,273642/odcinek-2022,S02E2022,2077062"
yt-dlp --allow-u -f 3803 "https://vod.tvp.pl/programy,88/kolo-fortuny-odcinki,273642/odcinek-2022,S02E2022,2077062"

merged with ffmpeg:

ffmpeg -i video.mp4 -i audio.m4a -c copy encrypted.mp4

mp4decrypter:

mp4decrypt --key e2725c711ace45cf9201cee8ec3b1748:506966e8a830df86f1aebe33b83ff962 encrypted.mp4 decrypted.mp4

I believe your order of operations might be incorrect. You’ll need to decrypt the video and audio separately first, then merge them after decryption. Merging them beforehand likely won’t work as expected.

Decrypting before merging produces an empty file

[Obo]

Download the formats that yt-dlp identifies as DRM protected: f7-v1-x3 and f8-a1-x3. These will be decrypted by mp4decrypt.

And of course @loadtheCD is right: you have to decrypt each track separately before you can merge it.

[xomuz]

Download the formats that yt-dlp identifies as DRM protected: f7-v1-x3 and f8-a1-x3. These will be decrypted by mp4decrypt.

And of course @loadtheCD is right: you have to decrypt each track separately before you can merge it.

file is 0 KB after decryption

[Obo]

Not here. I can download both formats mentioned, decrypt them, and merge them into a file that I can view with vlc.

[xomuz]

Not here. I can download both formats mentioned, decrypt them, and merge them into a file that I can view with vlc.

Hmm, so I don't know what I'm doing wrong

I also tried downloading the MPD, but it's the same

https://rsdt-waw1301-66.tvp.pl/token/video/vod/86192529/20250527/774718557/-BPmiuAS6JxlMGSxhJZQ16LtgT9udJcKxehwvsibqgcrRC-QThG-EZGYjN83nSp5SO7mmMtaLDNddIcX2rJgFxmHgtbdwUVgXDBt9_HdDZkkM3TTM_bHNVskikWOl965iTpTT_JEotJidp3RDhL2FEWG3TMNl62fUCdj0a8PvyRtxJcR0LPzug0tbJdpkKD5/video.ism/video.mpd

Where did you get f7-v1-x3 and f8-a1-x3 from? My IDs are 192 for audio and 3803 for video

[Obo]

yt-dlp --allow-u -F https://vod.tvp.pl/programy,88/kolo-fortuny-odcinki,273642/odcinek-2022,S02E2022,2077062

The files that you download with IDs 192 and 3803 really don't get decrypted with mp4decrypt. They don't even have the PSSH in their MOOV atom.

[xomuz]

yt-dlp --allow-u -F https://vod.tvp.pl/programy,88/kolo-fortuny-odcinki,273642/odcinek-2022,S02E2022,2077062

The files that you download with IDs 192 and 3803 really don't get decrypted with mp4decrypt. They don't even have the PSSH in their MOOV atom.

Oh it works now. I was downloading the wrong files because I was checking with --list-formats and there were only the 192 and 3803 IDs