[newgrounds] videos not being downloaded

[kattjevfel]

Noticed I got a bunch of "Unable to get download URL for ..." today, all the ones I had trouble with are mp4s.
Example URL: https://www.newgrounds.com/portal/view/733388

gallery-dl --ignore-config --verbose --option 'extractor.newgrounds.include="all"' https://www.newgrounds.com/portal/view/733388
[gallery-dl][debug] Version 1.15.1-dev
[gallery-dl][debug] Python 3.8.5 - Linux-5.8.12-20-tkg-upds-x86_64-with-glibc2.2.5
[gallery-dl][debug] requests 2.24.0 - urllib3 1.25.10
[gallery-dl][debug] Starting DownloadJob for 'https://www.newgrounds.com/portal/view/733388'
[newgrounds][debug] Using NewgroundsMediaExtractor for 'https://www.newgrounds.com/portal/view/733388'
[urllib3.connectionpool][debug] Starting new HTTPS connection (1): www.newgrounds.com:443
[urllib3.connectionpool][debug] https://www.newgrounds.com:443 "GET /portal/view/733388 HTTP/1.1" 200 9788
[newgrounds][warning] Unable to get download URL for 'https://www.newgrounds.com/portal/view/733388'

[TestPolygon]

Wait. It looks like you download only 720p version now. You should remove .720p (for example) from the URL to get the URL leads to the original (?) file.

The first from JSON:
https://uploads.ungrounded.net/alternate/564000/564957_alternate_31.720p.mp4?1359712249 10.2 MB
The changed:
https://uploads.ungrounded.net/alternate/564000/564957_alternate_31.mp4?1359712249 24.5 MB

---

{
    "id": 595355,
    "title": "Alien Hominid Fan Trailer",
    "author": "kickinthehead",
    "sources": {
        "720p": [
            {
                "type": "video\/mp4",
                "src": "https:\/\/uploads.ungrounded.net\/alternate\/564000\/564957_alternate_31.720p.mp4?1359712249"
            }
        ],
        "360p": [
            {
                "type": "video\/mp4",
                "src": "https:\/\/uploads.ungrounded.net\/alternate\/564000\/564957_alternate_31.360p.mp4?1359712249"
            }
        ]
    }
}

[mikf]

@TestPolygon f9c1684

[God-damnit-all]

@mikf It seems that while this usually works, it doesn't always. Sometimes the 'original video URL' that gallery-dl retrieves 404s, but the 720p variant works properly. This might need a fallback URL system like the twitter scraper has.