diff --git a/rtos/code/application/source/cardv/SrcCode/UIApp/PhotoFast/PhotoFast.c b/rtos/code/application/source/cardv/SrcCode/UIApp/PhotoFast/PhotoFast.c
index 490b28d06..e407ee9fa 100755
--- a/rtos/code/application/source/cardv/SrcCode/UIApp/PhotoFast/PhotoFast.c
+++ b/rtos/code/application/source/cardv/SrcCode/UIApp/PhotoFast/PhotoFast.c
@@ -1149,7 +1149,7 @@ static void PhotoFast_CaptureStop(void)
 	PhotoFast_Sliceencode2_Stop();
 }
 
-static void PhotoFast_CaptureStart(HD_VIDEO_FRAME *p_video_frame)
+static INT32 PhotoFast_CaptureStart(HD_VIDEO_FRAME *p_video_frame)
 {	
 	HD_PATH_ID vprc_path;
 
@@ -1177,7 +1177,7 @@ static void PhotoFast_CaptureStart(HD_VIDEO_FRAME *p_video_frame)
 	}
 
 #if POWERON_FAST_SLICE_ENC_VER2 == ENABLE
-	PhotoFast_Sliceencode2_Enq_Frame(p_video_frame);
+    return PhotoFast_Sliceencode2_Enq_Frame(p_video_frame);
 #else
 	PhotoFast_SliceEncode(vprc_path, p_video_frame);
 #endif
@@ -1719,8 +1719,14 @@ THREAD_RETTYPE PhotoFast_FlowPreviewThread(void *arg)
                     sf_ir_led_set(0, 0, 0, 0);
 				}
 				#endif
-				
-				PhotoFast_CaptureStart(&video_frame);
+
+                if(PhotoFast_CaptureStart(&video_frame) == E_OK){
+                    g_u32PrvCapCnt++;
+                }
+                else{
+                    DBG_WRN("enq frame failed...\n");
+                }
+                
 				if (g_u32PrvCapCnt >= max_cnt) {
 					g_bPreViewPullFlag = FALSE;
 				}