fix np array copy error

transcribe/whisper_llm_serve.py

@@ -139,7 +139,7 @@ class WhisperTranscriptionService:
                         self.frames_np = frame_np.copy()
                     else:
                         self.frames_np = np.append(self.frames_np, frame_np)
-                    if speech_status == "END" and len(frame_np) > 0:
+                    if speech_status == "END" and len(self.frames_np) > 0:
                         self.segments_queue.appendleft(self.frames_np.copy())
                         self.frames_np = np.array([], dtype=np.float32)
             except queue.Empty:
@@ -174,7 +174,7 @@ class WhisperTranscriptionService:
                 partial = False
             else:
                 with self.lock:
-                    audio_buffer = self.frames_np[:int(frame_epoch * 1.5 * self.sample_rate)]# 获取 1.5s * epoch 个音频长度
+                    audio_buffer = self.frames_np[:int(frame_epoch * 1.5 * self.sample_rate)].copy()# 获取 1.5s * epoch 个音频长度
                 partial = True
 
             if len(audio_buffer) ==0: