Help with downloading Channel 4 - All 4

[theshakez]

Hi Guys,


I can successfully do Channel 5 - My 5 - using herokuapp.

However I cant seem to get it to work on Channel 4 - All 4 - I just get error 404.

Anyone had success with All 4?

Cheers, Gaz

[naim2007]

Put your link here i will help you...

[theshakez]

Thanks!

I'm new to this only started looking at this kind of stuff a couple of days ago so big noob here!!
I'm trying to get this series "Skint" just first episode below.

https://www.channel4.com/programmes/skint/on-demand/53428-001

Channel 5 OD is fine so seems a bit different with All 4

Cheers, Gaz


MPD
https://ak-jos-c4assets-com.akamaized.net/CH4_08_02_900_53428001001004_005/CH4_08_02_900_53428001001004_005_J01.ism/stream.mpd?c3.ri=13636087969448456811&filter=(type =="video"&&((DisplayHeight>=288)&&(DisplayHeight<= 576)))||type!="video"&ts=1641823842&e=600&st=56OiB LGazQwDrzFpd-WxBb3ORE5EP5l8JejYiFOz-Fc&mpd_segment_template=time

PSSH
AAAAZnBzc2gAAAAA7e+LqXnWSs6jyCfc1R0h7QAAAEYIARIQAA AAAAAAAAAAAAAAAzI2AxoIcmJtY2g0dHYiJDAwMDAwMDAwLTAw MDAtMDAwMC0wMDAwLTAwMDAwMzMyMzYwMzIA

LICENCE
https://c4.eme.lp.aws.redbeemedia.com/wvlicenceproxy-service/widevine/acquire


Accept-Encoding: gzip, deflate, br
Accept-Language: en-GB,en-US;q=0.9,en;q=0.8
Content-Length: "6281"
Origin: https://www.channel4.com
Referer: https://www.channel4.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36


I get:

ERROR
Error 404:<br>

[theshakez]

Actually it wont let me DL the MPD either - this has happened a few times
This is what YTDL returns

Cheers, Gaz


WARNING: [generic] Could not send HEAD request to https://ak-jos-c4assets-com.akamaized.net/CH4_08_02_900_53428001001004_005/CH4_08_02_900_53428001001004_005_J01.ism/stream.mpd?c3.ri=13508298328590644900&filter=(type ==video&&((DisplayHeight>=288)&&(DisplayHeight<=57 6)))||type!=video&ts=1641824816&e=600&st=Ysli0PYQn kzo0bA0ySzG-XPNlD_3Elv858xMjJ4TJ7E&mpd_segment_template=time: HTTP Error 400: Bad Request
[generic] stream.mpd?c3: Downloading webpage
ERROR: [generic] Unable to download webpage: HTTP Error 400: Bad Request (caused by <HTTPError 400: 'Bad Request'>); please report this issue on https://github.com/yt-dlp/yt-dlp . Make sure you are using the latest version; see https://github.com/yt-dlp/yt-dlp on how to update. Be sure to call yt-dlp with the --verbose flag and include its complete output. (caused by <HTTPError 400: 'Bad Request'>); please report this issue on https://github.com/yt-dlp/yt-dlp . Make sure you are using the latest version; see https://github.com/yt-dlp/yt-dlp on how to update. Be sure to call yt-dlp with the --verbose flag and include its complete output.

[ac427]

Actually it wont let me DL the MPD either - this has happened a few times
This is what YTDL returns

Cheers, Gaz


WARNING: [generic] Could not send HEAD request to https://ak-jos-c4assets-com.akamaized.net/CH4_08_02_900_53428001001004_005/CH4_08_02_900_53428001001004_005_J01.ism/stream.mpd?c3.ri=13508298328590644900&filter=(type ==video&&((DisplayHeight>=288)&&(DisplayHeight<=57 6)))||type!=video&ts=1641824816&e=600&st=Ysli0PYQn kzo0bA0ySzG-XPNlD_3Elv858xMjJ4TJ7E&mpd_segment_template=time: HTTP Error 400: Bad Request
[generic] stream.mpd?c3: Downloading webpage
ERROR: [generic] Unable to download webpage: HTTP Error 400: Bad Request (caused by <HTTPError 400: 'Bad Request'>); please report this issue on https://github.com/yt-dlp/yt-dlp . Make sure you are using the latest version; see https://github.com/yt-dlp/yt-dlp on how to update. Be sure to call yt-dlp with the --verbose flag and include its complete output. (caused by <HTTPError 400: 'Bad Request'>); please report this issue on https://github.com/yt-dlp/yt-dlp . Make sure you are using the latest version; see https://github.com/yt-dlp/yt-dlp on how to update. Be sure to call yt-dlp with the --verbose flag and include its complete output.

I couldn't find the MPD link, did you find the MPD from the network tab?

Also is this a comedy or documentary?

[theshakez]

It a documentary series

Yes from the network tab.
MPDs from channel 5 are fine

Channel 5 example is fine:

https://hwdash.channel5.com/cenc/C5378180001/C5378180001A/20211231151839/C5378180001A-tt.mpd

Weird its not finding it on the All 4 stuff

[naim2007]

pssh: AAAAZnBzc2gAAAAA7e+LqXnWSs6jyCfc1R0h7QAAAEYIARIQAAAAAAAAAAAAAAAAAzI2AxoIcmJtY2g0dHYiJDAwMDAwMDAwLTAwMDAtMDAwMC0wMDAwLTAwMDAwMzMyMzYwMzIA

lic_url: https://c4.eme.lp.aws.redbeemedia.com/wvlicenceproxy-service/widevine/acquire

mpd_url: https://cf.jos.c4assets.com/CH4_08_02_900_53428001001004_005/CH4_08_02_900_53428001001004_005_J01.ism/stream.mpd?c3.ri=13631021427038645404&filter=%28type%3D%3D%22video%22%26%26%28%28DisplayHeight%3E%3D288%29%26%26%28DisplayHeight%3C%3D576%29%29%29%7C%7Ctype%21%3D%22video%22&ts=1641826819&e=600&st=HkjUUxUDFjON6zLTOMDDyKtDHsqxJDcsGyFOKWJ6pdU&mpd_segment_template=time 

content key: 00000000000000000000000003323603:8d44cadccc1ac15b9dec500e44e18668

[ac427]

It a documentary series

Yes from the network tab.
MPDs from channel 5 are fine

Channel 5 example is fine:

https://hwdash.channel5.com/cenc/C5378180001/C5378180001A/20211231151839/C5378180001A-tt.mpd

Weird its not finding it on the All 4 stuff

Thanks, which browser are you using to get the MPD?

I've tried both FF and Chrome but nothing appears as soon as i point MPD in the filter dialog box.

[T33V33]

All4 is far more complicated than my5. All4 requires extra data in the form of json tokens etc and I don't believe that can currently be done with herokuapp.

Also... All4 mpd's are time sensitive. They expire after a few minutes

[theshakez]

WOW!!

Also I still get error 404 on herokuapp what I try to get the keys myself.

Is there a better tool? Obviously don't want to be asking you guys all the time

Cheers Gaz

Thanks again.

Update
Found the new mpd with that Chrome plugin I just found. Again still learning this lol

[T33V33]

search for mpd in network tab of dev tools in Chrome... it always gives the address

[theshakez]

That worked guys.

So how can I get these keys myself is the some other tool I can use?

Please DM me if these should be private questions.

Thanks again guys!!

[pauli3]

Bumping this for a potential solution or help, both herokuapp & wks-key give errors trying to get keys for any all4 content.

[Sorenb]

Bumping this for a potential solution or help, both herokuapp & wks-key give errors trying to get keys for any all4 content.

See here
https://forum.videohelp.com/threads/404394-Help-with-downloading-Channel-4-All-4#post2644347

Extra info is needed for wks-keys to work

[BadJoker]

Just wondered if anyone could PM me what extra is needed for all4, i have sent various JSON requests but i still seem to be missing something minor as headers seem fine, have noticed they seem to have 3 license requests but i keep getting the protobufs error, even with the JSON info correctly formatted in the header.py file, just wondering if a bearer token is needed as well?

Grateful for any tips.

[T33V33]

Just wondered if anyone could PM me what extra is needed for all4, i have sent various JSON requests but i still seem to be missing something minor as headers seem fine, have noticed they seem to have 3 license requests but i keep getting the protobufs error, even with the JSON info correctly formatted in the header.py file, just wondering if a bearer token is needed as well?

Grateful for any tips.

token from the licence request payload

[BadJoker]

Is that in the header using the authorization string, or in the license url?

thanks.

[lomero]

lic url

[joasis]

I know it's a hot topic and people get frustrated with the same questions but could someone clear one thing out for me please..

Is it possible to make this work with medvm/widevine_keys (because I've seen people here claim they succeeded)?
When I modify the l3.py file and send the required json payload, I get a license key in a form of:

{"license":"long_license_key","status":{"success":true,"type":"Success"}}

...which I then pass to:

license_b64 = json.loads(response.content.decode())['license']
wvdecrypt.update_license(license_b64)

This results in an error:

ValueError: Ciphertext with incorrect length.

Anybody willing to share any pointers where should I go from here? Maybe via a private message.. That would be much appreciated.

[[ss]vegeta]

ValueError: Ciphertext with incorrect length.

Last time I got this on udemy, it meant my CDM was revoked. I was trying a lot of semi-failed requests... maybe the same happened to you.
Maybe.

[joasis]

That's probably the case. Thanks [ss]vegeta!

[AgoraLone]

Just wondered if anyone could PM me what extra is needed for all4, i have sent various JSON requests but i still seem to be missing something minor as headers seem fine, have noticed they seem to have 3 license requests but i keep getting the protobufs error, even with the JSON info correctly formatted in the header.py file, just wondering if a bearer token is needed as well?

Grateful for any tips.

token from the licence request payload

I tried doing that but I'm getting following errors on widevine_keys-main :-

license response status: <Response [500]>
server reports: {"status": {"success": false, "type": "An internal error with the LSP Module occurred"}}
server did not issue license, make sure you have correctly pasted all the required headers in the headers.py. Also check json/raw params of POST request.

And on http://getwvkeys.cc/ I'm getting error 404.

Can You tell me what I'm doing wrong??

[lomero]

c4 need a proper py to get keys ...

[Matt7416]

Hi Guys,


I can successfully do Channel 5 - My 5 - using herokuapp.

However I cant seem to get it to work on Channel 4 - All 4 - I just get error 404.

Anyone had success with All 4?

Cheers, Gaz

Did you ever achieve this? If so could you point me in the right direction please?

[Juan113]

Also interested on this, if someone has the answer tell pls

[codehound]

[Deleted]

[[ss]vegeta]

Thanks for sharing the script code.

[PoisonedPi]

Thanks for sharing the script code.

Hi, I've seen a lot of your useful guides on here regarding DRM/widevine but I am having a lot of difficulty with 4oD/channel 4. Would you mind sharing the script, the mpd link doesn't even seem to work in yt-dlp...

Edit: I have the script for getting the key but it seems impossible to get the mpd to download, I just get Error 400 bad request



I think it's a problem with the parameters but removing anything after filter= just breaks it

[[ss]vegeta]

If I remember correctly and I can be totally wrong now but there was a thing where you had to refresh the page few times and you get a different link to mpd that works.
Maybe that still works. Maybe it doesn't. Maybe it wasn't even for C4.

Works fine on my end btw

ytdlp.exe --allow-u "https://ak-jos-c4assets-com.akamaized.net/CH4_42_6_900_73370016001001_002/CH4_42_6_900_73370016001001_002_J01.ism/stream.mpd?c3.ri=13626539298484940417&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=1662312911&e=600&st=8qlxdb5ec4xMTEsY2HD9iPUkO-ai4BhSx8WP7kFxpJE"
WARNING: You have asked for UNPLAYABLE formats to be listed/downloaded. This is a developer option intended for debugging.
         If you experience any issues while using this option, DO NOT open a bug report
[generic] stream.mpd?c3: Downloading webpage
WARNING: [generic] Falling back on generic information extractor
[generic] stream.mpd?c3: Extracting information
[info] stream.mpd?c3: Downloading 1 format(s): video=2961791+audio_eng=128000
WARNING: You have requested merging of multiple formats while also allowing unplayable formats to be downloaded. The formats won't be merged to prevent data corruption.
[dashsegments] Total fragments: 470
[download] Destination: stream [stream.mpd？c3].fvideo=2961791.mp4
[download]   3.8% of ~959.80MiB at    4.78MiB/s ETA 03:37 (frag 18/470)

[PoisonedPi]

Thanks I was being a total idiot and was leaving the quotations marks out, which are supposed to surround the mpd address. I managed to successfully download and decrypt it into an mp4. Everything seems to be perfect, I'm just assuming its the highest bitrate that you can download, as changing the mpd parameters messes it up