Repository: yt-dlp
Issue: improve the generic extractor to look for brightcove
Labels: site-enhancement

### Checklist

- [X] I'm reporting a new site support request
- [X] I've verified that I'm running yt-dlp version **2021.12.27**. ([update instructions](https://github.com/yt-dlp/yt-dlp#update))
- [X] I've checked that all provided URLs are alive and playable in a browser
- [X] I've checked that none of provided URLs [violate any copyrights](https://github.com/ytdl-org/youtube-dl#can-you-add-support-for-this-anime-video-site-or-site-which-shows-current-movies-for-free) or contain any [DRM](https://en.wikipedia.org/wiki/Digital_rights_management) to the best of my knowledge
- [X] I've searched the [bugtracker](https://github.com/yt-dlp/yt-dlp/issues?q=) for similar issues including closed ones. DO NOT post duplicates
- [X] I've read the [guidelines for opening an issue](https://github.com/yt-dlp/yt-dlp/blob/master/CONTRIBUTING.md#opening-an-issue)
- [X] I've read about [sharing account credentials](https://github.com/yt-dlp/yt-dlp/blob/master/CONTRIBUTING.md#are-you-willing-to-share-account-details-if-needed) and am willing to share it if required

### Region

_No response_

### Example URLs

https://nypost.com/video/meet-ameca-the-humanoid-robot-that-is-terrifyingly-realistic/

### Description

I don't know if this really belongs in "Site support request," but...

I frequently encounter this annoyance on many sites, where yt-dlp checks some "generic" extractor, but not other obvious ones.

In this case, the source of the example page contains (removing the backslash escaping characters) `https://players.brightcove.net/4137224153001/ed38fae1-4db1-4308-8095-399a04010bc1_default/index.html?videoId=6290479995001` which one can easily use (after finding it) to download the video. I (and others) would certainly appreciate it if the generic extractor could find brightcove links (a platform used by a large number of sites) and download the associated videos without having to dig through the source.

### Verbose log

```shell
$ yt-dlp-2021.12.27 -v 'https://nypost.com/video/meet-ameca-the-humanoid-robot-that-is-terrifyingly-realistic/'
[debug] Command-line config: ['-v', 'https://nypost.com/video/meet-ameca-the-humanoid-robot-that-is-terrifyingly-realistic/']
[debug] Encodings: locale UTF-8, fs utf-8, out utf-8, err utf-8, pref UTF-8
[debug] yt-dlp version 2021.12.27 [6223f67a8] (zip)
[debug] Python version 3.9.9 (CPython 64bit) - Linux-5.15.11-with-glibc2.33
[debug] exe versions: ffmpeg 4.4.1 (setts), ffprobe 4.4.1
[debug] Optional libraries: Crypto
[debug] Proxy map: {}
[debug] [generic] Extracting URL: https://nypost.com/video/meet-ameca-the-humanoid-robot-that-is-terrifyingly-realistic/
[generic] meet-ameca-the-humanoid-robot-that-is-terrifyingly-realistic: Requesting header
WARNING: [generic] Falling back on generic information extractor.
[generic] meet-ameca-the-humanoid-robot-that-is-terrifyingly-realistic: Downloading webpage
[generic] meet-ameca-the-humanoid-robot-that-is-terrifyingly-realistic: Extracting information
[debug] Looking for video embeds
ERROR: Unsupported URL: https://nypost.com/video/meet-ameca-the-humanoid-robot-that-is-terrifyingly-realistic/
Traceback (most recent call last):
  File "/usr/local/bin/yt-dlp-2021.12.27/yt_dlp/YoutubeDL.py", line 1353, in wrapper
    return func(self, *args, **kwargs)
  File "/usr/local/bin/yt-dlp-2021.12.27/yt_dlp/YoutubeDL.py", line 1423, in __extract_info
    ie_result = ie.extract(url)
  File "/usr/local/bin/yt-dlp-2021.12.27/yt_dlp/extractor/common.py", line 599, in extract
    ie_result = self._real_extract(url)
  File "/usr/local/bin/yt-dlp-2021.12.27/yt_dlp/extractor/generic.py", line 3829, in _real_extract
    raise UnsupportedError(url)
yt_dlp.utils.UnsupportedError: Unsupported URL: https://nypost.com/video/meet-ameca-the-humanoid-robot-that-is-terrifyingly-realistic/
```