fix(audio): recover cleanly after barge-in

ql-application/threadx/interface/custom_app/hal_key.c

@@ -187,6 +187,9 @@ static void key_thread_entry(void *parameter)
 					if(ql_rtos_get_systicks() - key_press_mic_time > KEY_LONG_PRESS_3S && power_down_status==0){
 						nfc_tx_click_count = 0;
 						power_down_status = 1;
+						/* Shutdown audio must own the codec.  Stop VAD and any
+						 * interrupted TTS before queueing the power-off prompt. */
+						stop_player_func();
 						app_play_tips_file(10);
 						power_down_status = 2;
 						//ql_rtos_task_sleep_s(3);

ql-application/threadx/interface/custom_app/ws_talkingq.c

@@ -1001,26 +1001,40 @@ void app_player_thread(void *arvg)
 
 int tts_play_interrupt_func(void)
 {
+	int playback_interrupted = 0;
+
 	//如果在vad状态，则直接返回
 	if(vad_audio_is_recording()||g_mic_working) return -1;
 
 	g_mic_working = 1;//等待转为vad状态就清0 或者拾音超时 或者ws没有正常
-	
+
+	/* Remember whether this key press is interrupting TTS.  tts_playing == 2
+	 * is only a cancellation signal for the old player; it must not leak into
+	 * the next conversation, otherwise prompts and error audio are discarded. */
+	playback_interrupted = (tts_playing != 0 || player_mq_couter > 0);
 	xiaoice_close_all_audio();
 
 	talkingq_ws_connect();
 
-	if(get_xiaoice_connected_status()!=2) {
-		g_mic_working = 0;
-		return -2;
-	}
-	
-	if(tts_playing==2){
+	if(get_xiaoice_connected_status()!=2) {
+		/* Let the caller play its local network-error prompt. */
+		tts_play_status = 0;
+		tts_playing = 0;
+		g_mic_working = 0;
+		return -2;
+	}
+
+	if(playback_interrupted){
 		printf("vad_start_func0\n");
+		/* The old player has finished consuming the cancellation state. */
+		tts_play_status = 0;
+		tts_playing = 0;
 		vad_start_func();//如果是打断就不播报
 	}else{
 		app_play_tips_file(18);
 	}
+
+	return 0;
 }
 
 void stop_player_func(void)
@@ -1028,6 +1042,7 @@ void stop_player_func(void)
 	vad_audio_stop_record();
 	xiaoice_close_all_audio();
 
+	tts_play_status = 0;
 	tts_playing = 0;
 }
 
@@ -1194,9 +1209,16 @@ void xiaoice_close_all_audio(void)
 
 		timeout = hal_os_up_time_ms();
 
-		while(tts_play_status&&tts_playing!=2){
+		/* The queue counter also includes the item currently owned by the
+		 * player task.  Wait for that item to observe tts_playing == 2 and
+		 * finish cleanup before the cancellation state is reused/reset. */
+		while(player_mq_couter>0){
 			ql_rtos_task_sleep_ms(20);
-			if(hal_os_up_time_ms()-timeout>10000) break;
+			if(hal_os_up_time_ms()-timeout>OTA_AUDIO_STOP_TIMEOUT_MS){
+				printf("wait player stop timeout, counter:%d\r\n",
+				       player_mq_couter);
+				break;
+			}
 		}
 	}
 #endif