audio_render: discard a2d audio data while audio player task is running

Author: redchenjs

main/src/user/audio_render.c

@@ -69,38 +69,36 @@ static void audio_render_task(void *pvParameter)
         uint8_t *data = NULL;
         uint32_t size = 0;
 
-        data = (uint8_t *)xRingbufferReceiveUpTo(audio_buff, &size, 10 / portTICK_RATE_MS, 512);
+        data = (uint8_t *)xRingbufferReceiveUpTo(audio_buff, &size, 1 / portTICK_RATE_MS, 512);
 
         if (data == NULL || size == 0) {
             continue;
         }
 
+#if defined(CONFIG_ENABLE_AUDIO_PROMPT) || !defined(CONFIG_AUDIO_INPUT_NONE) || defined(CONFIG_ENABLE_VFX)
+        EventBits_t uxBits = xEventGroupGetBits(user_event_group);
+#endif
+
 #ifdef CONFIG_ENABLE_AUDIO_PROMPT
-        xEventGroupWaitBits(
-            user_event_group,
-            AUDIO_PLAYER_IDLE_BIT,
-            pdFALSE,
-            pdFALSE,
-            portMAX_DELAY
-        );
+        if (!(uxBits & AUDIO_PLAYER_IDLE_BIT)) {
+            goto return_item;
+        }
 #endif
 
         set_dac_sample_rate(a2d_sample_rate);
 
         size_t bytes_written = 0;
         i2s_write(CONFIG_AUDIO_OUTPUT_I2S_NUM, data, size, &bytes_written, portMAX_DELAY);
 
-#if !defined(CONFIG_AUDIO_INPUT_NONE) || defined(CONFIG_ENABLE_VFX)
-        EventBits_t uxBits = xEventGroupGetBits(user_event_group);
-#endif
-
 #ifndef CONFIG_AUDIO_INPUT_NONE
+        uxBits = xEventGroupGetBits(user_event_group);
         if (uxBits & AUDIO_INPUT_RUN_BIT) {
             goto return_item;
         }
 #endif
 
 #ifdef CONFIG_ENABLE_VFX
+        uxBits = xEventGroupGetBits(user_event_group);
         if (!(uxBits & VFX_FFT_NULL_BIT)) {
             goto return_item;
         }