alexei.dolgolyov/wled-screen-controller-mixed
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Fix keepalive not sent during zero-brightness suppression

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When brightness source (e.g. Audio Volume) returned 0 during silence,
the zero-brightness suppression path skipped all frames without sending
DDP keepalive packets, causing WLED to exit live mode after ~2.5s.
Now sends periodic keepalive even when suppressing zero-brightness frames.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Admin
2026-02-26 21:45:26 +03:00
parent fccf50c62a
commit d33d70cfe8
1 changed files with 17 additions and 1 deletions
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18
server/src/wled_controller/core/processing/wled_target_processor.py
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@@ -707,8 +707,24 @@ class WledTargetProcessor(TargetProcessor):
cur_brightness = 0
# Zero-brightness suppression: if output is black and
# the last sent frame was also black, skip sending.
# the last sent frame was also black, skip sending
# (but still send periodic keepalive to hold DDP live mode).
if cur_brightness <= 1 and _prev_brightness <= 1 and has_any_frame:
if self._needs_keepalive and (loop_start - last_send_time) >= keepalive_interval:
if not self._is_running or self._led_client is None:
break
send_colors = _cached_brightness(
self._fit_to_device(prev_frame_ref, _total_leds),
cur_brightness,
)
if self._led_client.supports_fast_send:
self._led_client.send_pixels_fast(send_colors)
else:
await self._led_client.send_pixels(send_colors)
now = time.perf_counter()
last_send_time = now
send_timestamps.append(now)
self._metrics.frames_keepalive += 1
self._metrics.frames_skipped += 1
while send_timestamps and send_timestamps[0] < loop_start - 1.0:
send_timestamps.popleft()