diff --git a/code/application/source/cardv/SrcCode/UIApp/Photo/UIAppPhoto_Exe.c b/code/application/source/cardv/SrcCode/UIApp/Photo/UIAppPhoto_Exe.c
index 5583ece76..e2ab80886 100755
--- a/code/application/source/cardv/SrcCode/UIApp/Photo/UIAppPhoto_Exe.c
+++ b/code/application/source/cardv/SrcCode/UIApp/Photo/UIAppPhoto_Exe.c
@@ -1708,7 +1708,7 @@ void PhotoExe_CommPoolInit(void)
 //	#else
 //	g_photo_mem_cfg.pool_info[id].blk_cnt = 8;
 //	#endif
-	g_photo_mem_cfg.pool_info[id].blk_cnt = 4;
+	g_photo_mem_cfg.pool_info[id].blk_cnt = 6;
 	g_photo_mem_cfg.pool_info[id].ddr_id = DDR_ID0;
 
 	// config common pool (wifi)
@@ -4466,8 +4466,11 @@ static INT32 PhotoExe_Preview_SliceEncode_Get_Curr_Dst_Slice_Info(PhotoExe_Slice
 	else{
 		PHOTO_SLICE_ENC_DUMP("cap_size = %lu buf_size = %lu\n", cap_size, buf_size);
 
-		UINT32 lines = (buf_size / cap_size_w);
-		max_slice_num = cap_size_h / lines + (cap_size_h % lines ? 1 : 0);
+		// UINT32 lines = (buf_size / cap_size_w);
+		// max_slice_num = cap_size_h / lines + (cap_size_h % lines ? 1 : 0);
+        UINT32 lines = (buf_size / cap_size_w);
+        UINT32 slice_height = ALIGN_CEIL(lines, 16);
+        max_slice_num = (cap_size_h / slice_height) + (cap_size_h % slice_height ? 1 : 0);
 
 		UINT32 tmp_src_h = src_frame.dim.h / 2;
 		UINT32 tmp_dst_h = cap_size_h / 16;
@@ -4537,8 +4540,11 @@ static INT32 PhotoExe_Preview_SliceEncode_Get_Max_Dst_Slice_Info(PhotoExe_SliceS
 	else{
 		PHOTO_SLICE_ENC_DUMP("cap_size = %lu buf_size = %lu\n", tmp_cap_size.w * tmp_cap_size.h, buf_size);
 
-		UINT32 lines = (buf_size / tmp_cap_size.w);
-				max_slice_num = tmp_cap_size.h / lines + (tmp_cap_size.h % lines ? 1 : 0);
+		// UINT32 lines = (buf_size / tmp_cap_size.w);
+		// 		max_slice_num = tmp_cap_size.h / lines + (tmp_cap_size.h % lines ? 1 : 0);
+                UINT32 lines = (buf_size / tmp_cap_size.w);
+                UINT32 slice_height = ALIGN_CEIL(lines, 16);
+                max_slice_num = (tmp_cap_size.h / slice_height) + (tmp_cap_size.h % slice_height ? 1 : 0);
 
 				UINT32 tmp_src_h = sensor_info->sSize.h / 2;
 				UINT32 tmp_dst_h = tmp_cap_size.h / 16;