Trying to download the video and audio files from this mpd

[carrion189]

I've looked all over, tried many different ways, but I'm having trouble with actually getting the files from this mpd using yt-dlp.

When I use -F to check the list of files, it shows me all the different video files and the one audio file.

The streamed file is available in two different codecs: VP9 and H264. The H264 is standard, easy to grab, but the VP9 is behind DRM.

MPD:

https://stc018.dmm.com/digital/st3.0:KED8kFSGaNTtVVI-FeD7a-UDPJ1KPBKbUIePaIzGgUujcww75ZGocySGC4ccyTRgYKy5GBRrChsfWF55WvXFW2KJu7VvQv-49jJ2tHf-WUWp1yX9ZUTOANe40Yy7wuFSm0ukG-GInf0H49speVDG4BqFllgPGgTpJjjIisUdqREFXgsX+Q5884IcXRFDxbHW803Z0opDxkzg7EvfqsM22SBuu31l5NgmK1FIBcBjkrcT2IoE608a0KiCWn-ryDnSKQPhRniD695DuZx5wDgcPfEuSWu9sYFPFw1y74DmIeyKbaDVC+d6USOC2kYeWU95pROlp9qTMqBJs1Zr0yOz9Q==/hVMGVQi1K9E0572ZMgkbn9TBYHGh/-/manifest.mpd

I've tried adding headers (user-agent, referer, cookies) to see if that's the problem, but no luck.

The errors I get, for example:

 [ERROR] CUID#7 - Download aborted.
  -> [HttpSkipResponseCommand.cc:218] errorCode=3 Resource not found

aria2 will resume download if the transfer is restarted.
If there are any errors, then see the log file. See '-l' option in help/man page for details.

ERROR: aria2c exited with code 3

Thank you for your help and input.

[[ss]vegeta]

Are you sure the video being streamed in your browser is actually VP9 and not the H264 one? Can you see the actual webm chunks showing up in the network tab?
You say the H264 is easily grabbed. Both MPDs show up in network tab?
What is the site?

[carrion189]

The site is dmm.co.jp. The purchase itself is a 4K video.

There are two different links when the video page is opened up. One link is the VP9 stream, and they also include a link to the H264 one. I can get the H264 one because it works the same as any other video that has that codec on that site. But VP9 is behind DRM and it's making me rip my hair out to try to get the video and audio files.

[[ss]vegeta]

You also need L1 CDM for 4K so even if you download...

[Javguy]

I've also been trying to get this to work with no luck, but I can maybe shed a little light and hopefully someone else more versed can chime in.

The url you want to use to download the video file is the one that has .webm extension in the network browser. If you use curl and specify a --range you can download the video in chunks. That's about as far as I've gotten because I still can't figure out a way to get the decryption keys. I think they're not using widevine for this but clearkey which from what I've read here is supposed to be easy and stored in plain text. You can even see the decryption key if you look at the encrypted video with ffprobe and you can also see the key in the license request, however the k is seemingly encrypted and NOT in plain text and that's where I'm stuck.

I think I've seen a previous post on this forum talking about this but it never really got off the ground and someone had said they encrypt the k with javascript somehow but I'm not sure.

I'd love if someone else could take a look and see if we can get this figured out. This has been bugging me for ages and I'd love to get it solved.

Also in regards to the L1 cdm, I don't believe that to be the case here.

[white_snake]

Have you tried also using

--cookies-from-browser firefox

Btw, I would focus on getting the key first. If you determine it's an L1 protected streams, there's no point even trying to download the encrypted video.

[Javguy]

so I was able to download the entire video by using a stream downloader, so that part seems to be a non issue now. However the decryption keys still prove a problem. it appears the response is sending an encrypted/obfuscated k and I assume gets deobfuscated/decrypted in the javascript or player somehow.

the request is sent to a https://mlic.dmm.co.jp/drm/clearkey/license license url which seems to imply it's clearkey
Here is what the request looks like

{
    "kids": [
        "BaOgqXi8PPGCwhHNfMzu9A",
        "BaOgqXi8PPGCwhHNfMzu9Q",
        "BaOgqXi8PPGCwhHNfMzu9g",
        "BaOgqXi8PPGCwhHNfMzu9w",
        "AAAAAAAAAAAAAAAAAAAAAA",
        "eyJ2IjoiMiIsImZpZCI6Ig",
        "aF8xMTAwaHpnZDAwMTQ2YQ",
        "IiwicGwiOiJleUp3YVdRaQ",
        "T2lKb1h6RXhNREJvZW1kaw",
        "TURBeE5EWmhJaXdpWkdWcw",
        "YVhabGNubGZkSGx3WlNJNg",
        "SW5OMEluMCIsInN2aWQiOg",
        "ImRpZ2l0YWwiLCJjcyI6Ig",
        "ZGQxMTQzMjcyOTU4ODZmNg",
        "NjFiZjFkMGI1YTFmMTdiNA",
        "In0AAAAAAAAAAAAAAAAAAA"
    ],
    "type": "temporary",
    "spki": "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAprC51O-w6ML6UqxHT17dDe4dt3gbGNzSnddR7nX8hnuuXLjGSyzCmvTwLM7jSHmbSqwsAnCgqof8A8366o679Y5YKI9jzY4-0Av1p-XEvm_7lslgh5NG5lAscjfIQfid-YyvIldxLE7-ZPXlmMFxRV2hYmIKaapvjAsFShfxuknouuclNXdLV4adCT0FOkaSkYlA7XCNMTgkKC9kioAp2FrHEfRJ13y9ld-oqv5Z463gElaafVEQKqjs8uE1UGIr2q1YxFzYQVOqpvXNd4w7x2QSowGDwvqqLowCykXFzQrT8OcKlo4WVs0Yd47-JEHXe_G9rmmqfP7Z5eB_fRnmmwIDAQAB"
}

and here is the response

{
    "keys": [
        {
            "kty": "oct",
            "k": "XAV10iVrdoaNJjx8lAjd1LSZkqYdbGtimlkYBDme820q1JbHO01nR-MMchFmZvPvZM577Of6fa63i0mdXdBw_XX72KluX4V-WaYCxU0u_JPSPFnyY25UphRv2L6U3f_34xUsIvAYsMa0XnICu2VpAzZi6WJ-UQzJWwsHAHgV409PYgIWjtM-cwNcWc9eF5E5dUmXVSRP4278lALruX5cM8KIm64nJ4x-LVlVyZL7asZlp8kuq2ne4TnXyEf06NFSPa-feWrJQ3bmlHzRnPi--OyWYlHyRSK0_cxkE8rgPf6shezoJvRtPQ9wXHUJha9GKsv5LJT835tSL0hAFlakYg",
            "kid": "BaOgqXi8PPGCwhHNfMzu9A"
        },
        {
            "kty": "oct",
            "k": "VH8COgRsPTgjwyCzutxU-c2x0tf_Ozixgr8F0-VdFKykNMCwZseraDx-eiQLdrMDSV9aFXHBeh2CHWbXzmuL7X-RqVTIAwvvQw47mNlitY6aZMn1k6GKY6-H9oZVchrDfiOCoxR9gXR_6FZban858AxjOdJlzIbT1HKZIkRsWvGeO4RLORjbgdXKMJgde2y4I9PhWYaPn65BazX_c_vtLsm8HBVaR_obTJ4k3Wf5wMm_aF2QvMuBefJBPnnitFq0ayi8DNC4vmBhH-rSY9YJF8PwKFz1WShItbSsSS_g-MLXGU1tQS1t5Une1uhpWWipKW9Lu9A1vFEXUWIAuQZAYA",
            "kid": "BaOgqXi8PPGCwhHNfMzu9Q"
        },
        {
            "kty": "oct",
            "k": "M_OhslF0xxFqc8Hyu613X2kjqxMNuM8BsPErAcx6LzFgKaUV0vISZXH4vdgK97pk4G0L5cp0GG84ccyfz6o5ot8YQGMGlfW8lW4SyxNkYwvzr6pferwjUULoo3h-wu6QA84YqwTwepxPE4Ucq2fA-NSbV3OweImBgpKRZoYM2Bg4aqtWuvsvLVYXp0ZiC5m0gdGPcnnWRDE9JoN2yZfBUg5dFr2kOgR5wpnSHsquudQ_6M9Dyqg4VcWixUbdU_XS8IbuberrxN122bfvue0_XI7oAf3KjZAwSf-dNAkh8Sj9MJdaGUr5oHtmYj0SM8e3eb8RQxgVeLdgQE1UotMhJw",
            "kid": "BaOgqXi8PPGCwhHNfMzu9g"
        },
        {
            "kty": "oct",
            "k": "aBNXFJidV1yVg72N1la--M-YxdbM0ew136XFV_tFLZB3pS1pBYQJe2Z3tdnXvbFwsBt4TtbGl1vd5NSJcE2xCmQW6ojYqxisrIw2PmHtex-gnIB-dvl-NTj26DcY0zDSxK3LZGjArPbVRpmo0Ikbxqs_Y97Pt_cS6PNXEQW3rxHb2n0fW790CUZwHgD-e4X4YGW5nLpalAuJyhT7sZvr5h7Pz5FGZhT4O81pitoHh-kwMd6XPyHJqpi24XaUzw9Z0kcFJ1VLcjN7zl1XIFX25ewEpdVZX0a871pYG-3BQA8fFaN5td5XLcCc8UswwZ_4vj-pwVkhMJAKXoqySuQhmw",
            "kid": "BaOgqXi8PPGCwhHNfMzu9w"
        }
    ],
    "type": "temporary"
}

looking at the video file itself with a hex editor you can see references to shaka packager, but no PSSH or anything related to widevine.

Below is what the manifest.mpd contains

<?xml version="1.0" encoding="utf-8"?>
<MPD xmlns="urn:mpeg:dash:schema:mpd:2011" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="urn:mpeg:dash:schema:mpd:2011 DASH-MPD.xsd" xmlns:cenc="urn:mpeg:cenc:2013" profiles="urn:mpeg:dash:profile:isoff-on-demand:2011" minBufferTime="PT2S" type="static" mediaPresentationDuration="PT6683.52099609375S">
  <Period id="0">
    <AdaptationSet id="0" contentType="audio" subsegmentAlignment="true">
      <ContentProtection value="cenc" schemeIdUri="urn:mpeg:dash:mp4protection:2011" cenc:default_KID="05a3a0a9-78bc-3cf1-82c2-11cd7ccceef4" />
      <ContentProtection schemeIdUri="urn:uuid:1077efec-c0b2-4d02-ace3-3c1e52e2fb4b">
        <cenc:pssh>AAABJHBzc2gBAAAAEHfv7MCyTQKs4zweUuL7SwAAABAFo6CpeLw88YLCEc18zO70BaOgqXi8PPGCwhHNfMzu9QWjoKl4vDzxgsIRzXzM7vYFo6CpeLw88YLCEc18zO73AAAAAAAAAAAAAAAAAAAAAHsidiI6IjIiLCJmaWQiOiJoXzExMDBoemdkMDAxNDZhIiwicGwiOiJleUp3YVdRaU9pSm9YekV4TURCb2VtZGtNREF4TkRaaElpd2laR1ZzYVhabGNubGZkSGx3WlNJNkluTjBJbjAiLCJzdmlkIjoiZGlnaXRhbCIsImNzIjoiZGQxMTQzMjcyOTU4ODZmNjYxYmYxZDBiNWExZjE3YjQifQAAAAAAAAAAAAAAAAAAAAAAAA==</cenc:pssh>
      </ContentProtection>
      <ContentProtection schemeIdUri="urn:uuid:9a04f079-9840-4286-ab92-e65be0885f95">
        <cenc:pssh>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</cenc:pssh>
      </ContentProtection>
      <ContentProtection schemeIdUri="urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed">
        <cenc:pssh>AAABDXBzc2gAAAAA7e+LqXnWSs6jyCfc1R0h7QAAAO0SEAWjoKl4vDzxgsIRzXzM7vQSEAWjoKl4vDzxgsIRzXzM7vUSEAWjoKl4vDzxgsIRzXzM7vYSEAWjoKl4vDzxgsIRzXzM7vciogF7InYiOiIyIiwiZmlkIjoiaF8xMTAwaHpnZDAwMTQ2YSIsInBsIjoiZXlKd2FXUWlPaUpvWHpFeE1EQm9lbWRrTURBeE5EWmhJaXdpWkdWc2FYWmxjbmxmZEhsd1pTSTZJbk4wSW4wIiwic3ZpZCI6ImRpZ2l0YWwiLCJjcyI6ImRkMTE0MzI3Mjk1ODg2ZjY2MWJmMWQwYjVhMWYxN2I0In0=</cenc:pssh>
      </ContentProtection>
      <Representation id="1" bandwidth="263278" codecs="mp4a.40.2" mimeType="audio/mp4" audioSamplingRate="48000">
        <AudioChannelConfiguration schemeIdUri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" value="2" />
        <BaseURL>audio.256.1-1.aac.mp4</BaseURL>
        <SegmentBase indexRange="863-40998" timescale="48000">
          <Initialization range="0-862" />
        </SegmentBase>
      </Representation>
    </AdaptationSet>
    <AdaptationSet id="3" contentType="video" width="3840" height="2160" frameRate="11988/400" subsegmentAlignment="true" par="16:9">
      <ContentProtection schemeIdUri="urn:uuid:1077efec-c0b2-4d02-ace3-3c1e52e2fb4b" cenc:default_KID="05a3a0a9-78bc-3cf1-82c2-11cd7ccceef7">
        <cenc:pssh>AAABJHBzc2gBAAAAEHfv7MCyTQKs4zweUuL7SwAAABAFo6CpeLw88YLCEc18zO70BaOgqXi8PPGCwhHNfMzu9QWjoKl4vDzxgsIRzXzM7vYFo6CpeLw88YLCEc18zO73AAAAAAAAAAAAAAAAAAAAAHsidiI6IjIiLCJmaWQiOiJoXzExMDBoemdkMDAxNDZhIiwicGwiOiJleUp3YVdRaU9pSm9YekV4TURCb2VtZGtNREF4TkRaaElpd2laR1ZzYVhabGNubGZkSGx3WlNJNkluTjBJbjAiLCJzdmlkIjoiZGlnaXRhbCIsImNzIjoiZGQxMTQzMjcyOTU4ODZmNjYxYmYxZDBiNWExZjE3YjQifQAAAAAAAAAAAAAAAAAAAAAAAA==</cenc:pssh>
      </ContentProtection>
      <ContentProtection schemeIdUri="urn:uuid:9a04f079-9840-4286-ab92-e65be0885f95" cenc:default_KID="05a3a0a9-78bc-3cf1-82c2-11cd7ccceef7">
        <cenc:pssh>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</cenc:pssh>
      </ContentProtection>
      <ContentProtection schemeIdUri="urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed" cenc:default_KID="05a3a0a9-78bc-3cf1-82c2-11cd7ccceef7">
        <cenc:pssh>AAABDXBzc2gAAAAA7e+LqXnWSs6jyCfc1R0h7QAAAO0SEAWjoKl4vDzxgsIRzXzM7vQSEAWjoKl4vDzxgsIRzXzM7vUSEAWjoKl4vDzxgsIRzXzM7vYSEAWjoKl4vDzxgsIRzXzM7vciogF7InYiOiIyIiwiZmlkIjoiaF8xMTAwaHpnZDAwMTQ2YSIsInBsIjoiZXlKd2FXUWlPaUpvWHpFeE1EQm9lbWRrTURBeE5EWmhJaXdpWkdWc2FYWmxjbmxmZEhsd1pTSTZJbk4wSW4wIiwic3ZpZCI6ImRpZ2l0YWwiLCJjcyI6ImRkMTE0MzI3Mjk1ODg2ZjY2MWJmMWQwYjVhMWYxN2I0In0=</cenc:pssh>
      </ContentProtection>
      <Role schemeIdUri="urn:mpeg:dash:role:2011" value="main" />
      <Representation id="8" bandwidth="25644119" codecs="vp09.00.50.08" mimeType="video/webm" sar="1:1">
        <BaseURL>h_1100hzgd00146a.2d_v1_drm_a_4k.1-1.vp9.webm</BaseURL>
        <SegmentBase indexRange="381-62757" timescale="11988">
          <Initialization range="0-380" />
        </SegmentBase>
      </Representation>
    </AdaptationSet>
  </Period>
</MPD>

Hopefully someone else might be able to give some hints or other tips on where to go about trying to get around this.

[shellcmd]

widevine pssh in mpd file, so can't just obtain keys as usually and use the pssh+widevine license?

[[ss]vegeta]

Probably not but try these

05a3a0a978bc3cf182c211cd7ccceef4:dd114327295886f661bf1d0b5a1f17b4
05a3a0a978bc3cf182c211cd7ccceef5:dd114327295886f661bf1d0b5a1f17b4
05a3a0a978bc3cf182c211cd7ccceef6:dd114327295886f661bf1d0b5a1f17b4
05a3a0a978bc3cf182c211cd7ccceef7:dd114327295886f661bf1d0b5a1f17b4

[carrion189]

They don't seem to work.

Although when I did that, the error that comes out, I think, tells me the correct KID

[0129/071008:ERROR:decryptor_source.cc(55)] Error retrieving decryption key: 14 (INTERNAL_ERROR): Key for key_id=6D49B21D18BB34ADB73238B00F923348 was not found.
[0129/071008:ERROR:webm_cluster_parser.cc(400)] Cannot decrypt samples
[0129/071008:ERRORackager_main.cc(554)] Packaging Error: 8 (PARSER_FAILURE): Cannot parse media file dmm.webm

I believe the KID 6D49B21D18BB34ADB73238B00F923348 is the hex value of one of the "keys" noted in the Preview tab of the license response:

[carrion189]

The 'k' value changes regularly for each KID

This is also in the payload as Javguy noted before. The spki appears to be the same throughout.

{kids: ["bUmyHRi7NK23MjiwD5IzRQ", "bUmyHRi7NK23MjiwD5IzRg", "bUmyHRi7NK23MjiwD5IzRw",…],…}
kids
: 
["bUmyHRi7NK23MjiwD5IzRQ", "bUmyHRi7NK23MjiwD5IzRg", "bUmyHRi7NK23MjiwD5IzRw",…]
0
: 
"bUmyHRi7NK23MjiwD5IzRQ"
1
: 
"bUmyHRi7NK23MjiwD5IzRg"
2
: 
"bUmyHRi7NK23MjiwD5IzRw"
3
: 
"bUmyHRi7NK23MjiwD5IzSA"
4
: 
"AAAAAAAAAAAAAAAAAAAAAA"
5
: 
"eyJ2IjoiMiIsImZpZCI6Ig"
6
: 
"aF8xNTU4Y3NkeDAwMDA0Ig"
7
: 
"LCJwbCI6ImV5SndhV1FpTw"
8
: 
"aUpvWHpFMU5UaGpjMlI0TQ"
9
: 
"REF3TURRaUxDSmtaV3hwZA"
10
: 
"bVZ5ZVY5MGVYQmxJam9pYw"
11
: 
"M1FpZlEiLCJzdmlkIjoiZA"
12
: 
"aWdpdGFsIiwiY3MiOiJmMw"
13
: 
"ZjE2ZTY4MzAzYTM1OGU3ZA"
14
: 
"MGZlN2M4ZTU4MDEwMDgifQ"
spki
: 
"MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAr9K1i5hBJSGi_m-wtfOKNZ4OY8BEzFYr16UA5VHAXpIHV_NB_n-UutvooNLsZOjKHMoJHvfnFYWDA5SZDxUHma9MUpR6ZSwsQg4h8reaHVTVWQXMynYFv6wW0LbHSVIvfH_r8BNCFlozX_sk9fN-YjPxLJ6Eb-bAX65n75tCkbEWCT9L0_k3ULZpzFvUSeXZyxAOEJQiaoAvEnCI9nKZp1ZlKt9G_AC7hIBXY6qAx_1SW5waGUbrNWNlRj2-xKZGqWmAZX9Em4AbwDtUouByUvG5SUc_QmEP1RVXaRrugEvzonW_7SkcqTsK5tiCcqbxOA3iSo9fEMjKbjUknsvk3wIDAQAB"
type
: 
"temporary"

[Javguy]

carrion is correct in that shaka seems to at least tell you the correct KID because when I tried to use the first three keys it gave me the error

[0130/044509:ERROR:decryptor_source.cc(55)] Error retrieving decryption key: 14 (INTERNAL_ERROR): Key for key_id=05A3A0A978BC3CF182C211CD7CCCEEF7 was not found.

it wasn't until I did the last key that it at least attempted to decrypt the video but alas, the final product was still garbage.

[carrion189]

It seems like the long k values have to be decrypted in order to get the correct one to convert from base64 to hex - which would yield the correct key

[tenpx1]

Hey all, signed up to this forum just to provide some advice here. Couldn't find anything on this topic elsewhere.
There's quite a lot of steps to get the decryption key and ive managed to solve it by a js script. Took me a while to reverse engineer how the clearkey service does it.

Basically what you need to do is:
1. Generate a client side key via javascript's `crypto.subtle.generateKey` of the type `RSA-OAEP` and with the hash type SHA-256.
2. Export that key, and base64 encode it.
3. Make a call to `https://mlic.dmm.co.jp/drm/clearkey/license` with the payload of { kids, type: 'temporary', spki } where the spki is the base64 public key in step 2 above.
4. From the response you get back, grab the first key, and based64 decode the "k" property of it. From there, use `crypto.subtle.decrypt` using the keys you created in step 1.
5. Base64 encode the value from step 4, then write to a hex string. Then you've got a key that works to decrypt with shaka packager.

Somewhat in a short summary, the clearkey/license server is ensuring that the machine that created the request for they keys (usually the browser) is the one whom will be decrypting it. From what I understand there would be no way to just inspect the payload like you're trying above, and decrypting those keys.

The problem I have now is whenever i make requests to the mpd files via nodejs, i get a timeout error
Does anyone know how to get past this?

[aqzs]

Took me a while to reverse engineer how the clearkey service does it.

For dmm.co.jp the easiest way it to retrieve key through widevine. You can edit the js code to force the player to use widevine instead of clearkey.

[tenpx1]

Took me a while to reverse engineer how the clearkey service does it.

For dmm.co.jp the easiest way it to retrieve key through widevine. You can edit the js code to force the player to use widevine instead of clearkey.

How do you do this? From the frontend somehow?