Repository: yt-dlp
Issue: [New extractor] Add support for player.fm
Labels: good first issue,site-request

### Checklist

- [X] I'm reporting a new site support request
- [X] I've verified that I'm running yt-dlp version **2022.07.18** ([update instructions](https://github.com/yt-dlp/yt-dlp#update)) or later (specify commit)
- [X] I've checked that all provided URLs are playable in a browser with the same IP and same login details
- [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

United states

### Example URLs

https://player.fm/series/soccer-101/ep-109-its-kicking-off-how-have-the-rules-for-kickoff-changed-what-are-the-best-approaches-to-getting-the-game-underway-and-how-could-we-improve-on-the-present-system
https://player.fm/series/soccer-101/ep-108-what-is-a-front-office-and-how-does-it-work
https://player.fm/series/soccer-101

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

Currently yt-dlp cannot extract the audio from the website even using the generic extractor. 

### Provide verbose output that clearly demonstrates the problem

- [X] Run **your** yt-dlp command with **-vU** flag added (`yt-dlp -vU <your command line>`)
- [X] Copy the WHOLE output (starting with `[debug] Command-line config`) and insert it below

### Complete Verbose Output

```shell
[debug] Command-line config: ['-vU', 'https://player.fm/series/soccer-101/ep-109-its-kicking-off-how-have-the-rules-for-kickoff-changed-what-are-the-best-approaches-to-getting-the-game-underway-and-how-could-we-improve-on-the-present-system']
[debug] Encodings: locale cp1252, fs utf-8, pref cp1252, out utf-8, error utf-8, screen utf-8
[debug] yt-dlp version 2022.07.18 [135f05e] (win32_exe)
[debug] Python 3.8.10 (CPython 64bit) - Windows-10-10.0.19044-SP0
[debug] Checking exe version: ffmpeg -bsfs
[debug] Checking exe version: ffprobe -bsfs
[debug] exe versions: ffmpeg 2022-07-14-git-882aac99d2-essentials_build-www.gyan.dev (setts), ffprobe 2022-07-14-git-882aac99d2-essentials_build-www.gyan.dev
[debug] Optional libraries: Cryptodome-3.15.0, brotli-1.0.9, certifi-2022.06.15, mutagen-1.45.1, sqlite3-2.6.0, websockets-10.3
[debug] Proxy map: {}
[debug] Fetching release info: https://api.github.com/repos/yt-dlp/yt-dlp/releases/latest
Latest version: 2022.07.18, Current version: 2022.07.18
yt-dlp is up to date (2022.07.18)
[debug] [generic] Extracting URL: https://player.fm/series/soccer-101/ep-109-its-kicking-off-how-have-the-rules-for-kickoff-changed-what-are-the-best-approaches-to-getting-the-game-underway-and-how-could-we-improve-on-the-present-system
[generic] ep-109-its-kicking-off-how-have-the-rules-for-kickoff-changed-what-are-the-best-approaches-to-getting-the-game-underway-and-how-could-we-improve-on-the-present-system: Downloading webpage
WARNING: [generic] Falling back on generic information extractor.
[generic] ep-109-its-kicking-off-how-have-the-rules-for-kickoff-changed-what-are-the-best-approaches-to-getting-the-game-underway-and-how-could-we-improve-on-the-present-system: Extracting information
[debug] Looking for video embeds
ERROR: Unsupported URL: https://player.fm/series/soccer-101/ep-109-its-kicking-off-how-have-the-rules-for-kickoff-changed-what-are-the-best-approaches-to-getting-the-game-underway-and-how-could-we-improve-on-the-present-system
Traceback (most recent call last):
  File "yt_dlp\YoutubeDL.py", line 1431, in wrapper
  File "yt_dlp\YoutubeDL.py", line 1506, in __extract_info
  File "yt_dlp\extractor\common.py", line 644, in extract
  File "yt_dlp\extractor\generic.py", line 4108, in _real_extract
yt_dlp.utils.UnsupportedError: Unsupported URL: https://player.fm/series/soccer-101/ep-109-its-kicking-off-how-have-the-rules-for-kickoff-changed-what-are-the-best-approaches-to-getting-the-game-underway-and-how-could-we-improve-on-the-present-system
```