playlist timer pause/resume without affecting active feeds

cmd/mxl-player/playlist_runtime.go

@@ -111,6 +111,14 @@ func (p *playerPlaylist) Previous() bool {
 	return p.enqueue(playback.PlaylistCommand{Kind: playback.PlaylistPrevious})
 }
 
+func (p *playerPlaylist) Pause() bool {
+	return p.enqueue(playback.PlaylistCommand{Kind: playback.PlaylistPause})
+}
+
+func (p *playerPlaylist) Resume() bool {
+	return p.enqueue(playback.PlaylistCommand{Kind: playback.PlaylistResume})
+}
+
 func (p *playerPlaylist) enqueue(command playback.PlaylistCommand) bool {
 	select {
 	case p.Commands <- command:
@@ -154,11 +162,14 @@ func playlistTimingProgress(
 	if timing.Expired {
 		return 1, 0
 	}
-	if !timing.Started {
+	remaining := timing.Remaining
+	if timing.Paused {
+		// Retain the remaining time captured when the owned timer stopped.
+	} else if !timing.Started {
 		return 0, timing.Duration
+	} else {
+		remaining = timing.Deadline.Sub(now)
 	}
-
-	remaining := timing.Deadline.Sub(now)
 	if remaining < 0 {
 		remaining = 0
 	}