vlive have change url format

Checklist

• I’m reporting a broken site support issue
• I’ve verified that I’m running youtube-dlc version 2020.10.26
• I’ve checked that all provided URLs are alive and playable in a browser
• I’ve checked that all URLs and arguments with special characters are properly quoted or escaped
• I’ve searched the bugtracker for similar bug reports including closed ones
• I’ve read bugs section in FAQ

Verbose log

$ youtube-dlc https://www.vlive.tv/post/0-19646784 -s -v
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['https://www.vlive.tv/post/0-19646784', '-s', '-v']
[debug] Loading archive file None
[debug] Encodings: locale cp1252, fs utf-8, out utf-8, pref cp1252
[debug] youtube-dlc version 2020.10.26
[debug] Python version 3.8.6 (CPython) - Windows-10-10.0.19041-SP0
[debug] exe versions: ffmpeg N-99793-gae9a1a9698, ffprobe N-99793-gae9a1a9698
[debug] Proxy map: {}
[generic] 0-19646784: Requesting header
WARNING: Falling back on generic information extractor.
[generic] 0-19646784: Downloading webpage
[generic] 0-19646784: Extracting information
ERROR: Unsupported URL: https://www.vlive.tv/post/0-19646784
Traceback (most recent call last):
  File "youtube_dlc\YoutubeDL.py", line 830, in extract_info
  File "youtube_dlc\extractor\common.py", line 532, in extract
  File "youtube_dlc\extractor\generic.py", line 3382, in _real_extract
youtube_dlc.utils.UnsupportedError: Unsupported URL: https://www.vlive.tv/post/0-19646784

Description

Vlive now change their URL format (the old format is http://www.vlive.tv/video/0000000 or https://channels.vlive.tv/xxxx/video) New format:

Single video: https://www.vlive.tv/post/1-19369327 Channel: https://www.vlive.tv/channel/FE619/board/3498

[robindz]

The videoId can still be found in the json metadata that is loaded when requesting the site, it’s now called vodId. The same goes for videoSeq, this is also present in the json metadata.

They then get the key through this endpoint: https://www.vlive.tv/globalv-web/vam-web/video/v1.0/vod/<VIDEOSEQ>/inkey, when requesting the key, there must be a Referer header along with the request, I suggest using https://www.vlive.tv/. This will return some json with the key present.

You can then use the same old endpoint to get all the other metadata: https://apis.naver.com/rmcnmv/rmcnmv/vod/play/v2.0/<VIDEOID>?key=<KEY>&videoId=<VIDEOID>

An example for https://www.vlive.tv/post/1-19577011

Download the webpage. Extract videoSeq & vodId: 219989 & 1B4719DCEC0D305AD8F6021DC9E8493B2099 Request the key @ https://www.vlive.tv/globalv-web/vam-web/video/v1.0/vod/219989/inkey (make sure to use Referer: “https://www.vlive/tv/” otherwise you’ll get a Bad Request response). The response looks like this:

{
    "inkey": "V1277a3e3cd2414e53a79bb9ead3d6b3a7a4a64e426894cfc0616548e63f2353bc66fbb9ead3d6b3a7a4a",
    "adParams": {
        "adChannelId": 6,
        "adCpId": 3,
        "videoAdEnabled": true
    }
}

Use the previously achieved vodId & just received inkey to make a request to the metadata endpoint: https://apis.naver.com/rmcnmv/rmcnmv/vod/play/v2.0/1B4719DCEC0D305AD8F6021DC9E8493B2099?key=V1277a3e3cd2414e53a79bb9ead3d6b3a7a4a64e426894cfc0616548e63f2353bc66fbb9ead3d6b3a7a4a&videoId=1B4719DCEC0D305AD8F6021DC9E8493B2099

^ This will expire after some time so if you read this late you just have to repeat the steps above to get the metadata and see for yourself.

[SeonjaeHyeon]

So it seems that Vlive also modified the information the website supplies to watch the video.

Right. They completely revised the site, so the way to get some video parameters (like inkey) is changed. We should modify those codes.