[site request] CollegeRama

[MatrixView]

Some big universities in Holland are running a presentation site for their lectures. Technical University Delft (TUD) offer great content to many thousands of regular visitors on: http://collegeramacolleges.tudelft.nl/online/faculties/all-faculties/public-lectures/

Basically, a video of the professor/lecturer speaking (or videoclips in their presentation) and a timelapsed sequence of slides (images) is what comprises an online lecture. It would be great if youtube-dl could support this site to:

1. download the lecture video
2. download the presentation (slide images) with a time-code in their name (or perhaps as a second video, or side-by-side/picture-in-picture single video)

An example of a lecture:
https://collegerama.tudelft.nl/Mediasite/Play/585a43626e544bdd97aeb71a0ec907a01d?catalog=fd32fd35-6c99-466c-89d4-cd3c431bc8a4

I very much hope this can be supported in a future version of Youtube-DL.

[MatrixView]

Some tech info that I've gathered through Firefox / F12 / Network-tab / Reload:

The site uses a Terena certificate. Provided you use the correct header settings, a POST action from the lecture/referer link to https://collegerama.tudelft.nl/Mediasite/PlayerService/PlayerService.svc/json/GetPlayerOptions will return json-data containing the session-key, the .mp4 video-link and an array with slide-names (images)and time-codes (in (m)seconds from the start of the video).

I'm not a programmer, so I hope this info will help you guys.

[MatrixView]

Thanx for the extractor! It downloads the video(s) just fine!

Is it possible to include the following variables with the write-info-json option data?:

1. If "HasSlideContent"=true,
   * Slides (image urls) = "SlideBaseUrl", "SlideImageFileNameTemplate"
   * Array of slide timecodes (milliseconds) = "Number" and "Time"
2. "Airdate"
3. "Presenters/Name"