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Fix Cast teardown leaks, keyframe latch, and DLNA session lifecycle

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Dropped frames never requested a keyframe, SessionEnded skipped ordered
stop (portal/TV/FFI leak, next start could abort), and a late end could
kill the following cast. Failed starts left PlatformClientPosix alive.
DLNA leaked its HTTP server and ignored portal EOS.

Also: start no longer blocks the daemon actor, IPC accept/request loops
stay up, HLS Range is clamped, LAN IP follows the renderer subnet, and
the picker closes before the portal dialog and handles Escape.
This commit is contained in:
Breadway 2026-08-16 14:15:56 +08:00
parent a80c49593d
commit 17abeed7ae
26 changed files with 861 additions and 222 deletions
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2
EVENTS.md
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@ -16,7 +16,7 @@ discovery-driven emit half.
| Event | Data | When |
|-------|------|------|
| `bread.cast.device_found` | `{ "id": "<mdns id or DLNA description URL>", "name": "<friendly name>", "model": "<model>", "protocol": "cast" \| "dlna" }` | A Chromecast/Google TV (mDNS) or DLNA/UPnP media renderer (SSDP) is discovered (or re-resolved) on the LAN. Fires on every re-resolution, not just the first sighting — treat it as an upsert keyed by `id`, not an append-only log. `id` is protocol-specific and only unique *within* a protocol — a Cast device's mDNS id and a DLNA device's description URL share no namespace. |
| `bread.cast.device_found` | `{ "id": "<mdns id or DLNA description URL>", "name": "<friendly name>", "model": "<model>", "protocol": "cast" \| "dlna" }` | A Chromecast/Google TV (mDNS) or DLNA/UPnP media renderer (SSDP) is discovered, or an already-known device changes (new host, new name). Re-resolutions that carry the same payload are **not** re-emitted — treat it as an upsert keyed by `id`, not an append-only log. `id` is protocol-specific and only unique *within* a protocol — a Cast device's mDNS id and a DLNA device's description URL share no namespace. |
| `bread.cast.mirroring_started` | `{ "device_id": "<id>", "device_name": "<name>", "protocol": "cast" \| "dlna" }` | A mirroring session successfully started, whether triggered by `bread.command.cast.start`, the `breadcast` GTK popup, or (once wired) any other IPC client. |
| `bread.cast.mirroring_stopped` | `{}` | A mirroring session ended, whether via an explicit stop (command, IPC, or GTK popup) or unprompted (the portal picker's "stop sharing", the receiver dropping the connection, a DLNA renderer stopping playback from its own remote). There is no separate "stopped by whom" distinction in this event — `breadcastd`'s own logs have that detail if needed. |
| `bread.cast.mirroring_failed` | `{ "device_id": "<id>", "error": "<message>" }` | A `start_cast`/`bread.command.cast.start` attempt failed before a session was established (device unreachable, portal capture denied, negotiation timeout, renderer rejected the stream, etc). |