rmcdecouverte.bfmtv.com extractor is broken

[gnomelibre]

Please follow the guide below

• You will be asked some questions and requested to provide some information, please read them carefully and answer honestly
• Put an x into all the boxes [ ] relevant to your issue (like this: [x])
• Use the Preview tab to see what your issue will actually look like

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Make sure you are using the latest version: run youtube-dl --version and ensure your version is 2018.12.17. If it's not, read this FAQ entry and update. Issues with outdated version will be rejected.

• I've verified and I assure that I'm running youtube-dl 2018.12.17

Before submitting an issue make sure you have:

• At least skimmed through the README, most notably the FAQ and BUGS sections
• Searched the bugtracker for similar issues including closed ones
• Checked that provided video/audio/playlist URLs (if any) are alive and playable in a browser

What is the purpose of your issue?

• Bug report (encountered problems with youtube-dl)
• Site support request (request for adding support for a new site)
• Feature request (request for a new functionality)
• Question
• Other

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If the purpose of this issue is a bug report, site support request or you are not completely sure provide the full verbose output as follows:

Add the -v flag to your command line you run youtube-dl with (youtube-dl -v <your command line>), copy the whole output and insert it here. It should look similar to one below (replace it with your log inserted between triple ```):

youtube-dl -v https://rmcdecouverte.bfmtv.com/le-mont-saint-michel/program_3587/
[debug] System config: ['--prefer-free-formats']
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['-v', 'https://rmcdecouverte.bfmtv.com/le-mont-saint-michel/program_3587/']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2018.12.17
[debug] Python version 3.7.1 (CPython) - Linux-4.19.8-300.fc29.x86_64-x86_64-with-fedora-29-Twenty_Nine
[debug] exe versions: ffmpeg 4.0.3, ffprobe 4.0.3
[debug] Proxy map: {}
[generic] program_3587: Requesting header
WARNING: Falling back on generic information extractor.
[generic] program_3587: Downloading webpage
[generic] program_3587: Extracting information
ERROR: Unsupported URL: https://rmcdecouverte.bfmtv.com/le-mont-saint-michel/program_3587/
Traceback (most recent call last):
  File "/usr/lib/python3.7/site-packages/youtube_dl/YoutubeDL.py", line 791, in extract_info
    ie_result = ie.extract(url)
  File "/usr/lib/python3.7/site-packages/youtube_dl/extractor/common.py", line 508, in extract
    ie_result = self._real_extract(url)
  File "/usr/lib/python3.7/site-packages/youtube_dl/extractor/generic.py", line 3298, in _real_extract
    raise UnsupportedError(url)
youtube_dl.utils.UnsupportedError: Unsupported URL: https://rmcdecouverte.bfmtv.com/le-mont-saint-michel/program_3587/

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Description of your issue, suggested solution and other information

The RMC Découverte website was redesigned a few days ago and since then, the extractor no longer works.

[moimadmax]

I confirm the problem and i've found a way to download the file.
Display the source code and serach for data-video-id. You will find data-video-id="5980028585001"
The 5980028585001 is the video ID on the brightcove platform so if you use the brighcove url it will works.
youtube-dl http://players.brightcove.net/1969646226001/default_default/index.html?videoId=5980028585001

The rmcdecouverte.py extractor has to be rewrited. I've tried to have a look but it's a complicated framework to learn for me and I miss times.
I'm pretty shure that the _VALID_URL variable has to change, and youtube-dl can recognize the site.

[nazmifr]

This is not a fix of youtube-dl but meanwhile javascript can easily grab the video id and generate the url automatically using @moimadmax method (mentioned here also #24862 ).

Here is a simple script you can copy in the javascript console (F12 > console in firefox) to get the url and youtube-dl command to get your video (check my project here for a js bookmarklet and shell implementation to use directly in the shell until youtubedl gets fixed)

	let iddecomptea = document.querySelectorAll('[data-account]')[0];
	if (iddecomptea === undefined){
        var iddecompte = document.querySelectorAll('[accountid]')[0].getAttribute("accountid");
    } else {
        var iddecompte = iddecomptea.getAttribute("data-account");
    }
    let iddevideo = document
        .querySelectorAll('[data-video-id]')[0]
        .getAttribute("data-video-id");
    let urldevideo = "http://players.brightcove.net/" + iddecompte + "/default_default/index.html?videoId=" + iddevideo;
    alert('youtube-dl --write-info-json ' + urldevideo + '\r\n\r\nURL:\r' + urldevideo);