From abd62648cb1b34186a2d63ba020475f5d85c7d45 Mon Sep 17 00:00:00 2001
From: Xiaoxia <terrence@tenclass.com>
Date: Sun, 1 Feb 2026 17:42:34 +0800
Subject: [PATCH] Implement early return in AfeWakeWord::Feed to prevent
 processing when detection is not running. This enhances the robustness of the
 wake word detection logic. (#1723)

---
 main/audio/wake_words/afe_wake_word.cc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/main/audio/wake_words/afe_wake_word.cc b/main/audio/wake_words/afe_wake_word.cc
index d9a4596b..d597f8a5 100644
--- a/main/audio/wake_words/afe_wake_word.cc
+++ b/main/audio/wake_words/afe_wake_word.cc
@@ -108,6 +108,9 @@ void AfeWakeWord::Feed(const std::vector<int16_t>& data) {
     if (afe_data_ == nullptr) {
         return;
     }
+    if (!(xEventGroupGetBits(event_group_) & DETECTION_RUNNING_EVENT)) {
+        return;
+    }
     afe_iface_->feed(afe_data_, data.data());
 }