Repository: yt-dlp
Issue: iQiyi 4K resolution
Labels: account-needed,site-enhancement,triage,can-share-account

### 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 asking a question and **not** reporting a bug or requesting a feature
- [X] I've looked through the [README](https://github.com/yt-dlp/yt-dlp#readme)
- [X] I've verified that I'm running yt-dlp version **2023.06.22** ([update instructions](https://github.com/yt-dlp/yt-dlp#update)) or later (specify commit)
- [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 questions **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)

### Please make sure the question is worded well enough to be understood

I am able to extract the videos up to 1080p. However, as a premium vip user, I should have access to 4K videos. There is an option for Smart TV and iPhone but not PC.  Can someone take a look how to download 4K videos?

### 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
yt-dlp -vU --cookies "D:\Chrome Downloads\iq.com_cookies.txt" https://www.iq.com/play/beauty-of-tang-men-2021-1g18je1p98g?lang=en_us
[debug] Command-line config: ['-vU', '--cookies', 'D:\\Chrome Downloads\\iq.com_cookies.txt', 'https://www.iq.com/play/beauty-of-tang-men-2021-1g18je1p98g?lang=en_us']
[debug] Encodings: locale cp1252, fs utf-8, pref cp1252, out utf-8, error utf-8, screen utf-8
[debug] yt-dlp version nightly@2023.07.03.104728 [4dc4d8473] (win_exe)
[debug] Python 3.8.10 (CPython AMD64 64bit) - Windows-10-10.0.19045-SP0 (OpenSSL 1.1.1k  25 Mar 2021)
[debug] exe versions: phantomjs 2.1.1
[debug] Optional libraries: Cryptodome-3.18.0, brotli-1.0.9, certifi-2023.05.07, mutagen-1.46.0, sqlite3-2.6.0, websockets-11.0.3
[debug] Proxy map: {}
[debug] Loaded 1856 extractors
[debug] Fetching release info: https://api.github.com/repos/yt-dlp/yt-dlp-nightly-builds/releases/latest
Available version: nightly@2023.07.03.104728, Current version: nightly@2023.07.03.104728
Current Build Hash: d522f4a3011b565290c3931c6dad67eaa6663932142883372c906b84c03d3d65
yt-dlp is up to date (nightly@2023.07.03.104728)
[iq.com] Extracting URL: https://www.iq.com/play/beauty-of-tang-men-2021-1g18je1p98g?lang=en_us
[iq.com] 1g18je1p98g: Downloading webpage
[debug] Loading iq.player_js from cache
[iq.com] 1g18je1p98g: Downloading VIP data
[debug] Loading iq.player_js from cache
[iq.com] 1g18je1p98g: Executing signature code (this may take a couple minutes)
[debug] [iq.com] PhantomJS command line: phantomjs "--ssl-protocol=any" "C:\Users\EC\AppData\Local\Temp\tmpn3ioxsek"
[iq.com] 1g18je1p98g: Downloading initial video format info
[iq.com] 1g18je1p98g: Downloading format data for 240P
[iq.com] 1g18je1p98g: Downloading format data for 720P
[iq.com] 1g18je1p98g: Downloading format data for 360P
[iq.com] 1g18je1p98g: Downloading format data for 480P
[iq.com] 1g18je1p98g: Downloading format data for 1080P
[debug] Formats sorted by: hasvid, ie_pref, lang, quality, res, fps, hdr:12(7), vcodec:vp9.2(10), channels, acodec, size, br, asr, proto, vext, aext, hasaud, source, id
[debug] Default format spec: best/bestvideo+bestaudio
[info] 1g18je1p98g: Downloading 1 format(s): 600
[debug] Invoking hlsnative downloader on "data:application/x-mpegurl;base64,<data>"
[hlsnative] Downloading m3u8 manifest
[hlsnative] Total fragments: 662
[download] Destination: Beauty Of Tang Men [1g18je1p98g].mp4
[debug] File locking is not supported. Proceeding without locking
```