[svt] Fix download of wrong episode and update test

[wader]

IMPORTANT: PRs without the template will be CLOSED

Description of your pull request and other information

Based on patch by @dirkf in comment #5595 (comment) Removes some REs that now accidentially finds id in a newly introduced NEXT_DATA JSON object.

Update SVTPlay test to a hopefully more stable URL (Rederiet episode 1, has no expire date)

Fixes #5595

Template

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What is the purpose of your pull request?

• Fix or improvement to an extractor (Make sure to add/update tests)
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• Core bug fix/improvement
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Copilot Summary

🤖 Generated by Copilot at 3964b06

Summary

🛠️📝🌐

Improved SVTPlayIE extractor by fixing a bug, simplifying code, and adding features. yt_dlp/extractor/svt.py now handles more metadata and subtitles for SVTPlay videos.

Rise from the ashes of the broken test case
Simplify the extraction of the video ID
Unleash the power of the metadata and subtitles
SVTPlayIE is the extractor of the night

Walkthrough

• Simplify and update regex patterns for video ID extraction in SVTPlayIE extractor (link)
• Update test case for SVTPlayIE extractor with a new video URL and ID, and add more metadata fields and subtitles (link)

[bashonly]

Add a new test instead of replacing an old one. If the old test no longer works, add a skip key to the test dict (the value should be the reason why it's being skipped)

[wader]

Add a new test instead of replacing an old one. If the old test no longer works, add a skip key to the test dict (the value should be the reason why it's being skipped)

Ok, add skip reason. No sure what is going with md5 hmm

$ python3 test/test_download.py TestDownload.test_SVTPlay
Skipping SVTPlay: Episode is no longer available
s
----------------------------------------------------------------------
Ran 1 test in 0.000s

OK (skipped=1)

$ python3 test/test_download.py TestDownload.test_SVTPlay_1
[debug] Loaded 1864 extractors
[debug] Using fake IP 78.69.195.245 (SE) as X-Forwarded-For
[SVTPlay] Extracting URL: https://www.svtplay.se/video/emBxBQj
[SVTPlay] emBxBQj: Downloading webpage
[SVTPlay] eyBd9aj: Downloading JSON metadata
[SVTPlay] eyBd9aj: Downloading MPD manifest
[SVTPlay] eyBd9aj: Downloading m3u8 information
[SVTPlay] eyBd9aj: Downloading MPD manifest
[SVTPlay] eyBd9aj: Downloading m3u8 information
[SVTPlay] eyBd9aj: Downloading MPD manifest
[SVTPlay] eyBd9aj: Downloading m3u8 information
[SVTPlay] eyBd9aj: Downloading MPD manifest
[SVTPlay] eyBd9aj: Downloading m3u8 information
[SVTPlay] eyBd9aj: Downloading m3u8 information
[SVTPlay] eyBd9aj: Downloading MPD manifest
[SVTPlay] eyBd9aj: Downloading m3u8 information
[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
[info] eyBd9aj: Downloading 1 format(s): dash-hbbtv-avc-0
[info] Writing video metadata as JSON to: test_SVTPlay_1_eyBd9aj.info.json
.
----------------------------------------------------------------------
Ran 1 test in 2.388s

OK

[bashonly]

Don't worry about md5, I edited my comment after realizing there was a skip_download param in the test

In the future, please avoid force-pushing. All commits will squashed before merge

Patch looks good

[wader]

Thanks. Successfully ran tests and tried a bit with some random svtplay URLs, then i noticed that there are URLs that work with the old version but not with these changes like https://www.svtplay.se/klipp/e9dBZ9R/det-kan-handa-efter-prigozjins-formodade-dod

[wader]

Re-adding r'["\']videoSvtId\\?["\']\s*:\s*\\?["\']([\da-zA-Z-]+)', seems to fix https://www.svtplay.se/klipp/e9dBZ9R/det-kan-handa-efter-prigozjins-formodade-dod

Wonder if we should readd more? add test?

[bashonly]

Re-adding r'["\']videoSvtId\\?["\']\s*:\s*\\?["\']([\da-zA-Z-]+)', seems to fix...

Wasn't that one of the problematic patterns that was matching the wrong video ID? If we re-add more back, what is the point of this PR? Should more research be done into which patterns yield the wrong IDs?

Perhaps the JSON should be properly parsed instead

[wader]

@bashonly tried and yes it break things again :( so yes some more proper less patchy solution is probably needed

[bashonly]

@wader Test my changes and let me know

[wader]

Tried a few old and new ones, all seem to work 👍

https://www.svtplay.se/klipp/e9dBZ9R/det-kan-handa-efter-prigozjins-formodade-dod - works
https://www.svtplay.se/video/emBxBQj - works
https://www.svtplay.se/video/jz2rYz7/anders-hansen-moter/james-fallon?info=visa - works
https://www.svtplay.se/video/e2ov9zm/aktuellt/ikvall-21-00 - works
https://www.svtplay.se/klipp/jb3by35/spadbarnsmordaren?info=visa - works

[wader]

Retried, all good 👍

[wader]

Let me know if i should help testing etc