By chance since another topic, I discovered a debug on the Streamfab CEF.
Explanation:
If you launch a video from the Streamfab browser, so by canceling the analysis and clicking on Play, you can then right-click on the current video, then do (Debugging information).
Inside you will have a long link to an XML file.
Do a download, and watch the surprise, a whole list, including even Full HD 1080P.
You can go further to download the video, audio or subtitle, keeping the full URL, and just changing the last argument (which is the XML) by the name of the file that appears in the XML.
The video is obviously encrypted (hence the mime error), but you can download it by right-clicking, then Save video as...
We see a whole group of resolutions, but if we go higher in the XML, we see 720P and also 1080P, but which have their own keys.
This means that we can perfectly download 1080P videos on MyCanal !
I did the test, and it downloads well, the video is corrupted by the fact that it is encrypted, but it is accessible.
I wonder if they don't just have to rework their module, so that it can take into account these different groups of keys ?
Example for the movie (Bis Repetita) I voluntarily deleted the public keys:
cenc:pssh>
w1_v_avc_20_1080_1920_0_4500.mp4
In any case, there is a touch-up to be done in the module, it remains to be seen if it is not a story of algorithm of keys still unknown, but we have proof that Streamfab can go well above 720P.
It would be great if we could have an Expert mode, to put our own links and keys.