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refactor(player): delete the webview video path; mpv selects its own tracks

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DR-235 phase 3. Every video renderer is native now: mpv on Linux and
Windows, ExoPlayer on Android, all drawing behind the transparent
webview. The HTML5 <video> path is gone, not bypassed:

- Frontend: hls.js, Html5PlayerAdapter and its compatibility shim, the
  createAdapter factory, streamTransport, hlsRecovery, timeTracking,
  videoFit, the <video>/<track> markup and every element handler in
  VideoPlayer (3277 -> 2144 lines), the experimentalNativeVideo store
  and its Settings toggle, webviewVideoFallback/supportsNativeVideo, and
  the setHtml5VideoState PiP bridge call. NativePlayerAdapter is the one
  video adapter; webview audio gets its own adapter kind.
- Rust: use_html5 dropped from player_seek_video,
  player_switch_audio_track and player_set_stream_quality with the
  Html5* strategies and ReloadStream responses; use_html5_element and
  VideoBackend dropped from PlayerStatus; player_play_item always loads
  the backend (set_current_item removed); Capabilities::webview removed;
  the WebKitGTK GStreamer/VAAPI setup (and its gst-inspect spawn) removed.
- Android: the HTML5 video state in PictureInPictureManager and
  ScreenWakeManager, and the bridge method feeding it.
- CSP: connect-src loses http:/https: and worker-src loses blob: -
  both existed for hls.js; with it gone they were only an exfiltration
  channel and a blob worker for injected script. A test now keeps them
  out.

mpv takes over what the <video> element did (mpv_tracks, UT-275):
subtitles are the WebVTT list the play request carries, queued on
sub-files and selected by position in that list, starting off; audio
tracks are selected by position in the file; sid/aid are reset before
each load. Without this, Linux video had no subtitle selection and a
direct-play audio switch failed since mpv became its renderer.

Verified: Rust 948 passing, and the same 948 cross-compiled for Windows
under wine against the shipped DLL (track tests included); frontend
1111 passing; aarch64 debug APK builds. Lint warnings 158 -> 146, CI
ratchet tightened to match. Not yet seen on Windows hardware.
This commit is contained in:
dtourolle
2026-09-24 23:11:17 -04:00
parent bb3ab1edd7
commit 1677f5f299
69 changed files with 4014 additions and 7330 deletions
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src-tauri/tauri.conf.json
+2 -2
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@@ -22,8 +22,8 @@
}
],
"security": {
"csp": "default-src 'self'; script-src 'self'; style-src 'self' 'unsafe-inline'; font-src 'self' data:; img-src 'self' data: blob: asset: http://asset.localhost http: https:; media-src 'self' blob: asset: http://asset.localhost http://127.0.0.1:* http: https:; connect-src 'self' ipc: http://ipc.localhost http: https:; worker-src 'self' blob:; object-src 'none'; frame-src 'none'; base-uri 'self'; form-action 'self'; frame-ancestors 'none'",
"devCsp": "default-src 'self'; script-src 'self' 'unsafe-inline' 'unsafe-eval'; style-src 'self' 'unsafe-inline'; font-src 'self' data:; img-src 'self' data: blob: asset: http://asset.localhost http: https:; media-src 'self' blob: asset: http://asset.localhost http://127.0.0.1:* http: https:; connect-src 'self' ipc: http://ipc.localhost http: https: ws: wss:; worker-src 'self' blob:; object-src 'none'; frame-src 'none'; base-uri 'self'; form-action 'self'",
"csp": "default-src 'self'; script-src 'self'; style-src 'self' 'unsafe-inline'; font-src 'self' data:; img-src 'self' data: blob: asset: http://asset.localhost http: https:; media-src 'self' blob: asset: http://asset.localhost http://127.0.0.1:* http: https:; connect-src 'self' ipc: http://ipc.localhost; worker-src 'self'; object-src 'none'; frame-src 'none'; base-uri 'self'; form-action 'self'; frame-ancestors 'none'",
"devCsp": "default-src 'self'; script-src 'self' 'unsafe-inline' 'unsafe-eval'; style-src 'self' 'unsafe-inline'; font-src 'self' data:; img-src 'self' data: blob: asset: http://asset.localhost http: https:; media-src 'self' blob: asset: http://asset.localhost http://127.0.0.1:* http: https:; connect-src 'self' ipc: http://ipc.localhost ws: wss:; worker-src 'self'; object-src 'none'; frame-src 'none'; base-uri 'self'; form-action 'self'",
"assetProtocol": {
"enable": true,
"scope": [