[ie/bilibili] Fix subtitles and chapters extraction

[xiaomac]

Update bilibili url of info api with wbi

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seems bilibili update they subtitle api url:
old: https://api.bilibili.com/x/player/v2?aid=113470703931990&cid=26731938624
new: https://api.bilibili.com/x/player/wbi/v2?aid=113470703931990&cid=26731938624

subtitles info is different (empty some time, or random text other) everytimes the old url is requested:

#1:
"subtitle": { "allow_submit": false, "lan": "", "lan_doc": "", "subtitles": [ { "id": 1610305384030071000, "lan": "ai-zh", "lan_doc": "中文（自动生成）", "is_lock": false, "subtitle_url": "//aisubtitle.hdslb.com/bfs/ai_subtitle/prod/113384720701738265043985411da261a20ff661ad1742661f045442eb?auth_key=1733141553-2cb7a684118a43b0805fb8218fa0d3d5-0-3a8c2b0ae88228cf5e2abd7305e0a3dd", "type": 1, "id_str": "1610305384030071040", "ai_type": 0, "ai_status": 2 } ] },

#2

"subtitle": { "allow_submit": false, "lan": "", "lan_doc": "", "subtitles": [ { "id": 1621313484639830800, "lan": "ai-zh", "lan_doc": "中文（自动生成）", "is_lock": false, "subtitle_url": "", "type": 1, "id_str": "1621313484639830784", "ai_type": 0, "ai_status": 2 } ] },

#3

"subtitle": { "allow_submit": false, "lan": "", "lan_doc": "", "subtitles": [ { "id": 1594993089838253000, "lan": "ai-zh", "lan_doc": "中文（自动生成）", "is_lock": false, "subtitle_url": "//aisubtitle.hdslb.com/bfs/ai_subtitle/prod/11326509914660626182422278427ae3a2c0f57329b82aca9855da788e?auth_key=1733141745-2f81559110754683993d8cc30656ac70-0-bbda9c01620eb4d99f818375a3b3df96", "type": 1, "id_str": "1594993089838253056", "ai_type": 0, "ai_status": 2 } ] }

check out the subtitle_url in #1 and #3, are total none sense content.

Fixes #

use new url: https://api.bilibili.com/x/player/**wbi**/v2

"subtitle": { "allow_submit": false, "lan": "", "lan_doc": "", "subtitles": [ { "id": 1621313484639830800, "lan": "ai-zh", "lan_doc": "中文（自动生成）", "is_lock": false, "subtitle_url": "//aisubtitle.hdslb.com/bfs/ai_subtitle/prod/11347070393199026731938624d2e6f10bd77a075e49b793b12ab8bf73?auth_key=1733141975-be61791b7526450db96b8141994e9300-0-17391f3ea1538b8e3a721d3e9b297c8a", "subtitle_url_v2": "//subtitle.bilibili.com/S%13%1BP.%1D%28%29X%2CR%5Ej%1F%25w%0E%02H%5EHO4%14%7B4%08K@%3C%7B%00M%0B%0A%1AM%08%056N6$%0C0&%02%1E%01%09%0E%1A2V~%15F%5C%11C%5E%5BCQ%0C%7F%17P%5Ct%19WQXUZZ_%5E%5DYq%23N%3Fc%5E%19JNK%14fNzAAQDDPX%12Y%0D%2FLQ%0E%20%18S?auth_key=1733141975-be61791b7526450db96b8141994e9300-0-17391f3ea1538b8e3a721d3e9b297c8a", "type": 1, "id_str": "1621313484639830784", "ai_type": 0, "ai_status": 2 } ] },

bug fixed.

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[bashonly]

If we are using wbi endpoints for these now, do we need to sign the URL (_sign_wbi) like we do when making requests to the other wbi endpoints?

[xiaomac]

If we are using wbi endpoints for these now, do we need to sign the URL (_sign_wbi) like we do when making requests to the other wbi endpoints?

i think so, but looks like the code already done that part i presume.

when i use --list-subs without logined_cookie, it shows warning:

WARNING: [BiliBili] Subtitles are only available when logged in. Use --cookies-from-browser or --cookies for the authentication. See https://github.com/yt-dlp/yt-dlp/wiki/FAQ#how-do-i-pass-cookies-to-yt-dlp for how to manually pass cookies

and after i add --cookies, the requests with '/wbi/' works well.

[grqx]

i think so, but looks like the code already done that part i presume.

if you want to sign the params, pass query=_sign_wbi(params, video_id). But as documented in https://github.com/SocialSisterYi/bilibili-API-collect/blob/master/docs/video/player.md, they aren't required for this API

[bashonly]

they aren't required for this API

Nevermind my question then, I was just curious