2. MPD - describes the media and how to get it. Developer Tools (F12 in your browser) select Network tab and enter 'mpd' in the filter box. Then start the video. Copy the url. It will look similar to this, BUT DO NOT USE THIS ONE, get a fresh copy. as it carries a token, which needs to be fresh each use.

...it seems to be the mpd not of the television program, but of the 5-second video of the TG4 logo.

I'm not sure is there still a such a singular [video file URL]. In the "Developer Tools (F12 in your browser) select Network tab" I see lots and lots of 'segments' with .m4f extension coming from Brightcove. My mental model is that when the tutorial was written there was one file, now TG4 have gotten more cautious and split it up into tiny one-second segments. Is this hypothesis right? Is there a way to do Step 2 in https://forum.videohelp.com/threads/404994-Decryption-and-the-Temple-of-Doom ?

GRMA

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[–] lukas@lemmy.haigner.me 10 points 11 months ago* (last edited 11 months ago) (1 children)

My mental model is that when the tutorial was written there was one file, now TG4 have gotten more cautious and split it up into tiny one-second segments. Is this hypothesis right?

The Media Presentation Description (MPD) is a document that contains metadata required by a DASH Client to construct appropriate HTTP-URLs to access Segments and to provide the streaming service to the user.

Not quite. What you see is normal. Browsers look at MPD documents to know where to download video segments. They then play these video segments. You probably saw a 5 second long video segment that displays the TG4 logo.

Is there a way to do Step 2 in https://forum.videohelp.com/threads/404994-Decryption-and-the-Temple-of-Doom ?

DevTools only record network traffic after you open the DevTools. So maybe try to open the DevTools, refresh the page, and play the video. You're looking a link that starts with https://manifest.prod.boltdns.net/manifest/v1/dash/live-baseurl/bccenc and ends with manifest.mpd. Here's the decryption key id and key itself at the time of writing, separated by a colon:

275e573642ec45d3b4c51b86e94d508f:7cd815f999bc2c99e4ddb47901a8cc66

[–] frightful_hobgoblin@lemmy.ml 1 points 11 months ago (1 children)

I simply don't see it. When I filter mpd, I get content.mpd, which is the video logo I mentioned, plus a lot of mpds that are for Brightcove's analytics.

Could there be a browser setting that's causing this?

I've tried refreshing the page and hitting play. I've tried changing resolution, which causes it to pause for a second where you can feel it load a new video, but I don't see an mpd in the DevTools ¯\_(ツ)_/¯

[–] frightful_hobgoblin@lemmy.ml 1 points 11 months ago

Aha!

Solution: clear browsing history/cache, then load the page anew, DevTools being open.