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Tune sync delay to 10s, fix countdown during transitions, add buffer bloat monitor 

- Set *browser-buffer-seconds* to 10 (5s=23s early, 23s=14s late)
- Hide countdown timer during title transition window (titles mismatch)
- Add client-side buffer bloat monitor: logs buffer size every 30s,
  auto-reconnects if buffer exceeds 15s to prevent drift
- Reduce buffer monitor log spam (only log when >5s, check every 30s)
- Update cl-streamer submodule ref
This commit is contained in:
Glenn Thompson 2026-04-09 17:12:15 +01:00
parent 10c75f04e1
commit 20ed7ecb02
3 changed files with 23 additions and 20 deletions
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2
cl-streamer

@ -1 +1 @@
Subproject commit 8a5dde598370b13965317f456999a85096832be6
Subproject commit cc4215d1c663c5aed4e9758c755a944016fa6aaa

10
parenscript/stream-player.lisp
View File

@ -779,12 +779,12 @@
(when (and (not (ps:@ audio-element paused))
(not *is-reconnecting*))
(let ((ahead (get-buffer-ahead audio-element)))
(when (and ahead (> ahead 0))
(ps:chain console (log (+ "[BUFFER] " (ps:chain ahead (to-fixed 1)) "s ahead")))
(when (> ahead *max-buffer-seconds*)
(when (and ahead (> ahead 5))
(ps:chain console (log (+ "[BUFFER] " (ps:chain ahead (to-fixed 1)) "s ahead"))))
(when (and ahead (> ahead *max-buffer-seconds*))
(ps:chain console (log (+ "[BUFFER] Bloat detected (" (ps:chain ahead (to-fixed 1)) "s), resetting stream")))
(reconnect-stream))))))
10000)))
(reconnect-stream)))))
30000)))
;; Attach event listeners to audio element
(defun attach-audio-listeners (audio-element)

15
stream-harmony.lisp
View File

@ -212,17 +212,20 @@
(listeners (cl-streamer:pipeline-listener-count *harmony-pipeline*))
(track-id (or (find-track-by-title display-title)
(find-track-by-file-path (getf track-info :file))))
(pipeline-title (getf track-info :display-title))
(raw-remaining (cl-streamer/harmony:pipeline-track-remaining *harmony-pipeline*))
;; Adjust for browser buffer delay - listener is further behind than pipeline
(remaining (when raw-remaining
(let ((adjusted (+ raw-remaining cl-streamer::*browser-buffer-seconds*)))
(max 0 (floor adjusted))))))
(titles-match (or (null listener-title)
(null pipeline-title)
(string= listener-title pipeline-title)))
;; Only show remaining when titles match (delay has passed).
;; During the transition window the countdown would be inaccurate.
(remaining (when (and raw-remaining titles-match)
(max 0 (floor raw-remaining)))))
;; Diagnostic: log when listener-title differs from pipeline title
(let ((pipeline-title (getf track-info :display-title)))
(when (and listener-title pipeline-title
(not (string= listener-title pipeline-title)))
(log:info "[SYNC-DIAG] API returning ~S (pipeline has ~S, delay=~As)"
listener-title pipeline-title cl-streamer::*browser-buffer-seconds*)))
listener-title pipeline-title cl-streamer::*browser-buffer-seconds*))
`((:listenurl . ,(format nil "~A/~A" *stream-base-url* mount))
(:title . ,display-title)
(:listeners . ,(or listeners 0))