improve subwoofer

+{
+    "files.associations": {
+        "xutility": "c"
+    }
+}
\ No newline at end of file

@@ -155,14 +155,14 @@ int pcm_dec_decode_frame(U8 **pout,U16 *plen)
 		#ifdef OPL_MODE_TWO_WAY
 		in_out_offset = 180;
 		#else
-		in_out_offset = 16;
+		in_out_offset = 32;
 		#endif
 		//i32 count = ((AD_PCM_BLOCK_SIZE/2-16) - dma0_cnt);
 		i32 count = ((AD_PCM_BLOCK_SIZE/2-in_out_offset) - dma0_cnt);
 		
 		discard_frame_cnt = 3;
 		
-		if (count < -2  || count > 2)
+		if (count < -8  || count > 8)
 		{
 			//adj_outsamples = count>>1;
 			memset(pDecOut,0,AD_PCM_BLOCK_SIZE*2);
@@ -172,15 +172,15 @@ int pcm_dec_decode_frame(U8 **pout,U16 *plen)
 			{
 				count = AD_PCM_BLOCK_SIZE/4;
 			}
-			else if (count < -in_out_offset)
+			else if (count < (i32)(-in_out_offset))
 			{
-				count = -in_out_offset;
+				count = (i32)(-in_out_offset);
 			}
 
 			DBG_Printf("adj count:%d\r\n",count);
 
 			*pout = pDecOut;
-			*plen = AD_PCM_BLOCK_SIZE + (count/2)*4;
+			*plen = AD_PCM_BLOCK_SIZE + (count/8)*16;
 
 			return DECODE_SUCCESS;			
 		}
@@ -1652,14 +1652,14 @@ void taskDec(void *pvParameters)
 				//optek_hifi2_16b_to_24b(pDacbuf,pDacbuf,(samples<<1));		
 			}
 			#endif
-
+/*
 			if (pOut_up != NULL)
 			{
 				app_main_data.playing_stream_chans = 1;
 				len >>= 1;
 				pOut = pOut_up;
 			}
-
+*/
 			while(len > max_out_len)
 			{
 				slice <<= 1;

@@ -131,8 +131,8 @@
 
 /*********Choose one*************/
 //#define OPL_MODE_SINGLE_WAY
-#define OPL_MODE_TWO_WAY
-//#define OPL_MODE_SWF
+//#define OPL_MODE_TWO_WAY
+#define OPL_MODE_SWF
 
 #if (defined OPL_MODE_TWO_WAY || (defined OPL_MODE_SINGLE_WAY && defined OPL_MASTER_ENABLE))
 #define LC3_ENCODE_ENABLE