feat(youtube): add mediaCache mode and safer stream media extraction

- Add `youtube.mediaCache.mode` config option (`direct` | `background`)
- Resolve EDL stream URLs to single audio/video URLs before ffmpeg extraction
- Pass reconnect, user-agent, and safe headers to ffmpeg for remote streams
- Add background yt-dlp media cache with fallback to direct extraction
- Introduce `MediaInput` structured type replacing bare path strings
This commit is contained in:
2026-06-20 02:25:32 -07:00
parent d199376364
commit 236f22662c
41 changed files with 1381 additions and 102 deletions
+10 -4
View File
@@ -1520,14 +1520,20 @@ Set defaults used by managed subtitle auto-selection and the `subminer` launcher
```json
{
"youtube": {
"primarySubLanguages": ["ja", "jpn"]
"primarySubLanguages": ["ja", "jpn"],
"mediaCache": {
"mode": "direct"
}
}
}
```
| Option | Values | Description |
| --------------------- | -------- | ------------------------------------------------------------------------------------------------ |
| `primarySubLanguages` | string[] | Primary subtitle language priority for managed subtitle auto-selection (default `["ja", "jpn"]`) |
| Option | Values | Description |
| --------------------- | ------------------------ | ------------------------------------------------------------------------------------------------ |
| `primarySubLanguages` | string[] | Primary subtitle language priority for managed subtitle auto-selection (default `["ja", "jpn"]`) |
| `mediaCache.mode` | `direct` \| `background` | YouTube card audio/image extraction mode (default `direct`) |
`mediaCache.mode: "direct"` extracts card media from the active YouTube stream URL. `mediaCache.mode: "background"` starts a separate yt-dlp media download after YouTube playback has loaded. Playback and subtitle loading do not wait for that download; card media generation uses the cached file once it is ready and otherwise falls back to direct stream extraction.
Current launcher behavior: