Repository: yt-dlp
Issue: [airtv] support embedded URLs
Labels: site-enhancement,triage

### DO NOT REMOVE OR SKIP THE ISSUE TEMPLATE

- [X] I understand that I will be **blocked** if I *intentionally* remove or skip any mandatory\* field

### Checklist

- [X] I'm requesting a site-specific feature
- [X] I've verified that I have **updated yt-dlp to nightly or master** ([update instructions](https://github.com/yt-dlp/yt-dlp#update-channels))
- [X] I've checked that all provided URLs are playable in a browser with the same IP and same login details
- [X] I've searched [known issues](https://github.com/yt-dlp/yt-dlp/issues/3766) and 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)
- [ ] 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 I'm willing to share it if required

### Region

global

### Example URLs

https://embed.air.tv/v1/iframe/z_otddHVTYa-FpB_6vLE6Q?organization=F9El5s6aRlCDACZYqu5y3w

### Provide a description that is worded well enough to be understood

Not sure if this goes into the "broken site" or "site feature" category, but...

I believe the extractor lacks the regex necessary to find (and logic to subsequently process) embedded AIR.TV URLs.

The source contains the direct link to the video (https://cdn-sp-gcs.air.tv/videos/t/4/t43P6-DgQHWSf950YQfJTA/c2858b7e-8d45-4c7f-97a7-74caefc638a9.mp4).

### Provide verbose output that clearly demonstrates the problem

- [X] Run **your** yt-dlp command with **-vU** flag added (`yt-dlp -vU <your command line>`)
- [ ] If using API, add `'verbose': True` to `YoutubeDL` params instead
- [X] Copy the WHOLE output (starting with `[debug] Command-line config`) and insert it below

### Complete Verbose Output

```shell
[debug] Command-line config: ['-v', 'https://embed.air.tv/v1/iframe/z_otddHVTYa-FpB_6vLE6Q?organization=F9El5s6aRlCDACZYqu5y3w']
[debug] Encodings: locale UTF-8, fs utf-8, pref UTF-8, out utf-8, error utf-8, screen utf-8
[debug] yt-dlp version nightly@2023.12.18.232711 from yt-dlp/yt-dlp-nightly-builds [00a3e47bf] (zip)
[debug] Python 3.11.6 (CPython x86_64 64bit) - Linux-6.1.53-with-glibc2.37 (OpenSSL 3.0.11 19 Sep 2023, glibc 2.37)
[debug] exe versions: ffmpeg 4.4.4 (setts), ffprobe 4.4.4
[debug] Optional libraries: certifi-3021.03.16, pycrypto-3.19.0, requests-2.31.0, urllib3-2.1.0
[debug] Proxy map: {}
[debug] Request Handlers: urllib, requests
[debug] Loaded 1795 extractors
[generic] Extracting URL: https://embed.air.tv/v1/iframe/z_otddHVTYa-FpB_6vLE6Q?organization=F9El5s6aRlCDACZYqu5y3w
[generic] z_otddHVTYa-FpB_6vLE6Q?organization=F9El5s6aRlCDACZYqu5y3w: Downloading webpage
WARNING: [generic] Falling back on generic information extractor
[generic] z_otddHVTYa-FpB_6vLE6Q?organization=F9El5s6aRlCDACZYqu5y3w: Extracting information
[debug] Looking for embeds
ERROR: Unsupported URL: https://embed.air.tv/v1/iframe/z_otddHVTYa-FpB_6vLE6Q?organization=F9El5s6aRlCDACZYqu5y3w
Traceback (most recent call last):
  File "/tmp/yt-dlp-20231218/yt_dlp/YoutubeDL.py", line 1581, in wrapper
    return func(self, *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/tmp/yt-dlp-20231218/yt_dlp/YoutubeDL.py", line 1716, in __extract_info
    ie_result = ie.extract(url)
                ^^^^^^^^^^^^^^^
  File "/tmp/yt-dlp-20231218/yt_dlp/extractor/common.py", line 718, in extract
    ie_result = self._real_extract(url)
                ^^^^^^^^^^^^^^^^^^^^^^^
  File "/tmp/yt-dlp-20231218/yt_dlp/extractor/generic.py", line 2531, in _real_extract
    raise UnsupportedError(url)
yt_dlp.utils.UnsupportedError: Unsupported URL: https://embed.air.tv/v1/iframe/z_otddHVTYa-FpB_6vLE6Q?organization=F9El5s6aRlCDACZYqu5y3w
```