Repository: yt-dlp
Issue: Youtube: New itag 408 and alternative formats not visible to download via yt-dlp 2022.11.11
Labels: cant-reproduce,site-enhancement

### DO NOT REMOVE OR SKIP THE ISSUE TEMPLATE

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

### Checklist

- [X] I'm reporting a broken site
- [X] I've verified that I'm running yt-dlp version **2022.11.11** ([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 all URLs and arguments with special characters are [properly quoted or escaped](https://github.com/yt-dlp/yt-dlp/wiki/FAQ#video-url-contains-an-ampersand--and-im-getting-some-strange-output-1-2839-or-v-is-not-recognized-as-an-internal-or-external-command)
- [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 I'm willing to share it if required

### Region

USA/North East

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

This may be time sensitive in terms of reproducibility. The live stream event started around 4:45pm PT on Dec 11, and is expected to end within 2 hours, around 10:00pm PT.

There is currently a large live stream happening, I noticed a new itag number and didn't find any existing documentation so adding report here.

I ran the command with and without --allow-unplayable-formats to make sure it wasn't an encrypted stream, but my issue isn't related to playing DRM or playback. I have attached a debug of the Firefox yt player underneath as well as a list of the resolutions. I don't believe an account is necessary, codec switches to 408 after a few seconds of stable playback and 1080p resolution in Firefox private and chrome incognito.

Additionally, this is likely the first live stream that has multiple audio language tracks. I was unable to have alternative audio tracks show up in yt-dlp. However it is possible to switch from english to spanish or french using the web player.

I have attached a mediainfo of bitstream captured. This is what is possible to download via  build 2022.11.11. I could not figure out a way to download a different language audio, seems related to #1176 .  

It will be harder to access after the event ends so I included as much extra information as possible.

### 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
youtube-dl.exe" "https://www.youtube.com/watch?v=tg9CH4KlKMc" --cookies-from-browser firefox --allow-unplayable-formats --audio-multistreams -F -vU
[debug] Command-line config: ['https://www.youtube.com/watch?v=tg9CH4KlKMc', '--cookies-from-browser', 'firefox', '--allow-unplayable-formats', '--audio-multistreams', '-F', '-vU']
WARNING: You have asked for UNPLAYABLE formats to be listed/downloaded. This is a developer option intended for debugging.
         If you experience any issues while using this option, DO NOT open a bug report
[debug] Encodings: locale cp1252, fs utf-8, pref cp1252, out utf-8, error utf-8, screen utf-8
[debug] yt-dlp version 2022.11.11 [8b64402] (win_exe)
[debug] Python 3.8.10 (CPython AMD64 64bit) - Windows-10-10.0.19044-SP0 (OpenSSL 1.1.1k  25 Mar 2021)
[debug] exe versions: ffmpeg 2022-08-18-git-48be6616d0-full_build-www.gyan.dev (setts), ffprobe 2022-08-18-git-48be6616d0-full_build-www.gyan.dev
[debug] Optional libraries: Cryptodome-3.15.0, brotli-1.0.9, certifi-2022.09.24, mutagen-1.46.0, sqlite3-2.6.0, websockets-10.4
[Cookies] Extracting cookies from firefox
[debug] Extracting cookies from: "C:\Users\Karan\AppData\Roaming\Mozilla\Firefox\Profiles\95haphww.default-release\cookies.sqlite"
[Cookies] Extracted 1372 cookies from firefox
[debug] Proxy map: {}
[debug] Loaded 1723 extractors
[debug] Fetching release info: https://api.github.com/repos/yt-dlp/yt-dlp/releases/latest
Latest version: 2022.11.11, Current version: 2022.11.11
yt-dlp is up to date (2022.11.11)
[debug] [youtube] Extracting URL: https://www.youtube.com/watch?v=tg9CH4KlKMc
[youtube] tg9CH4KlKMc: Downloading webpage
[debug] [youtube] Extracted SAPISID cookie
[youtube] tg9CH4KlKMc: Downloading android player API JSON
[youtube] tg9CH4KlKMc: Downloading m3u8 information
[youtube] tg9CH4KlKMc: Downloading m3u8 information
[debug] Sort order given by extractor: quality, res, fps, hdr:12, source, vcodec:vp9.2, channels, acodec, lang, proto
[debug] Formats sorted by: hasvid, ie_pref, quality, res, fps, hdr:12(7), source, vcodec:vp9.2(10), channels, acodec, lang, proto, filesize, fs_approx, tbr, vbr, abr, asr, vext, aext, hasaud, id
[info] Available formats for tg9CH4KlKMc:
ID  EXT RESOLUTION FPS │   TBR PROTO │ VCODEC        VBR ACODEC    ABR
──────────────────────────────────────────────────────────────────────
91  mp4 256x144     15 │  252k m3u8  │ avc1.4d400b  252k mp4a.40.5  0k
92  mp4 426x240     30 │  445k m3u8  │ avc1.4d4015  445k mp4a.40.5  0k
93  mp4 640x360     30 │  933k m3u8  │ avc1.4d401e  933k mp4a.40.2  0k
94  mp4 854x480     30 │ 1568k m3u8  │ avc1.4d401f 1568k mp4a.40.2  0k
300 mp4 1280x720    60 │ 3995k m3u8  │ avc1.4d4020 3995k mp4a.40.2  0k
301 mp4 1920x1080   60 │ 6980k m3u8  │ avc1.4d402a 6980k mp4a.40.2  0k

------------------------------------
In Stats for nerds:

Current / Optimal Res
256x144@30 / 256x144@30
Volume / Normalized
100% / 100%
Codecs
vp09.00.51.08.01.01.01.01.00 (278)  / mp4a.40.2 (140)

Current / Optimal Res
426x240@30 / 426x240@30
Volume / Normalized
100% / 100%
Codecs
vp09.00.51.08.01.01.01.01.00 (242) / mp4a.40.2 (140)

Current / Optimal Res
640x360@30 / 640x360@30
Volume / Normalized
100% / 100%
Codecs
vp09.00.51.08.01.01.01.01.00 (243) / mp4a.40.2 (140)

Current / Optimal Res
854x480@30 / 854x480@30
Volume / Normalized
100% / 100%
Codecs
vp09.00.51.08.01.01.01.01.00 (244) / mp4a.40.2 (140)

Current / Optimal Res
1280x720@60 / 1280x720@60
Volume / Normalized
100% / 100%
Codecs
vp09.00.51.08.01.01.01.01.00 (302) / mp4a.40.2 (140) 

Current / Optimal Res
1920x1080@60 / 1920x1080@60
Volume / Normalized
100% / 100%
Codecs
vp09.00.51.08.01.01.01.01.00 (408) / mp4a.40.2 (140)

Live Mode Manifestless, Optimized for Normal Latency, seq 2466

---------------------------------------------
{
  "ns": "yt",
  "el": "detailpage",
  "cpn": "CKiQ1i9ZOhpmOVYy",
  "ver": 2,
  "cmt": "11008.973",
  "fmt": "408",
  "fs": "0",
  "rt": "433.882",
  "euri": "",
  "lact": 3,
  "live": "dvr",
  "cl": "493350312",
  "mos": 0,
  "state": "8",
  "volume": 100,
  "cbr": "Firefox",
  "cbrver": "107.0",
  "c": "WEB",
  "cver": "2.20221207.05.00",
  "cplayer": "UNIPLAYER",
  "cos": "Windows",
  "cosver": "10.0",
  "cplatform": "DESKTOP",
  "delay": 5,
  "hl": "en_US",
  "cr": "US",
  "fexp": "23853952,23983296,23986025,24001373,24002022,24002025,24004644,24007246,24080738,24135310,24169501,24292955,24396645,24407200,24415864,24423887",
  "afmt": "140",
  "lio": "1670802303.661",
  "muted": "0",
  "au_d": ".5",
  "docid": "tg9CH4KlKMc",
  "ei": "MpWWY-j5C-SM2LYP5MmF6AE",
  "plid": "AAXvmHYOZ02W9G3Z",
  "referrer": "https://www.youtube.com/channel/UCrPseYLGpNygVi34QpGNqpA",
  "sdetail": "p:/channel/UCrPseYLGpNygVi34QpGN",
  "sourceid": "y",
  "of": "tGhdBhIgZ-cAVRCPI6hA7A",
  "vm": "CAEQARgEOjJBUEV3RWxUOTRXVUpLckdnZXZpSEthN2Z3dzN6MGZQby1mVHhOeHFZdE1HYzhpdDc0UWJPQVBta0tESlBheHRla3RvZ3lSR2pNWDl2YzY4cGI2MF9odVJ3NUthSEpqRmZtZWZLazZ6elBiNjJ4WnhEcE1oMFpwNExBNkpkamFvemwwa2gB",
  "vct": "11008.973",
  "vd": "14245.146",
  "vpl": "10771.384-11008.973",
  "vbu": "10860.059-11060.059",
  "vpa": "0",
  "vsk": "0",
  "ven": "0",
  "vpr": "1",
  "vrs": "4",
  "vns": "2",
  "vec": "null",
  "vemsg": "",
  "vvol": "1",
  "vdom": "1",
  "vsrc": "1",
  "vw": "1280",
  "vh": "720",
  "lct": "11008.973",
  "lsk": false,
  "lmf": true,
  "lbw": "2116375.446",
  "lhd": "0.082",
  "lst": "43.397",
  "laa": "itag_140_type_3_src_updateWithSegmentInfo_segsrc_updateWithSegmentInfo_seg_2213_time_11065.0-11070.0_off_0_len_82284_end_1",
  "lva": "itag_408_type_3_src_updateWithSegmentInfo_segsrc_updateWithSegmentInfo_seg_2211_time_11055.1-11060.1_off_0_len_2526455_end_1",
  "lar": "itag_140_type_3_src_mlLiveCreateReqInfoForSeg_segsrc_updateWithSegmentInfo_seg_2213_time_11065.0-11070.0_off_0_len_90000_end_1",
  "lvr": "itag_408_type_3_src_mlLiveCreateReqInfoForSeg_segsrc_updateWithSegmentInfo_seg_2212_time_11060.1-11065.1_off_0_len_4135000_end_1",
  "laq": "0",
  "lvq": "1885063",
  "lab": "10770.039-11070.064",
  "lvb": "10860.059-11060.059",
  "ismb": 13170000,
  "latency_class": "NORMAL",
  "leader": 1,
  "segduration": 5,
  "lat": 34.614280700683594,
  "relative_loudness": "NaN",
  "optimal_format": "1080p60",
  "user_qual": 1080,
  "release_version": "youtube.player.web_20221206_01_RC00",
  "debug_videoId": "tg9CH4KlKMc",
  "0sz": "false",
  "op": "",
  "yof": "false",
  "dis": "",
  "gpu": "ANGLE_(NVIDIA,_NVIDIA_GeForce_GTX_980_Direct3D11_vs_5_0_ps_5_0)",
  "debug_playbackQuality": "hd1080",
  "debug_date": "Sun Dec 11 2022 21:50:09 GMT-0500 (Eastern Standard Time)"
}
--------------------------------------------------
File size                                : 98.5 MiB
Duration                                 : 2 min 35 s
Overall bit rate mode                    : Variable
Overall bit rate                         : 5 331 kb/s

Video
ID                                       : 256 (0x100)
Menu ID                                  : 1 (0x1)
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : Main@L4.2
Format settings                          : CABAC / 3 Ref Frames
Format settings, CABAC                   : Yes
Format settings, Reference frames        : 3 frames
Codec ID                                 : 27
Duration                                 : 2 min 35 s
Width                                    : 1 920 pixels
Height                                   : 1 080 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Variable
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Color range                              : Limited
Color primaries                          : BT.709
Transfer characteristics                 : BT.709
Matrix coefficients                      : BT.709

Audio
ID                                       : 257 (0x101)
Menu ID                                  : 1 (0x1)
Format                                   : AAC LC
Format/Info                              : Advanced Audio Codec Low Complexity
Format version                           : Version 4
Muxing mode                              : ADTS
Codec ID                                 : 15-2
Duration                                 : 2 min 35 s 
Bit rate mode                            : Variable
Channel(s)                               : 2 channels
Channel layout                           : L R
Sampling rate                            : 44.1 kHz
Frame rate                               : 43.066 FPS (1024 SPF)
Compression mode                         : Lossy
Delay relative to video                  : -6 ms
```