diff --git a/mdc/src/decoded_mbuf_video_sender.h b/mdc/src/decoded_mbuf_video_sender.h
index 63b2f284bd4d35879da39df62686cdc07e2f7895..95f0e2ce09bac2243d9d5a88030b8ab53f56e454 100644
--- a/mdc/src/decoded_mbuf_video_sender.h
+++ b/mdc/src/decoded_mbuf_video_sender.h
@@ -169,7 +169,7 @@ public:
 #endif
     }
 
-    int32_t InitThreadPara()
+    void InitThreadPara()
     {
         g_send_exit_state[VDEC_MAX_CHN_NUM] = {0};
         g_get_exit_state[VDEC_MAX_CHN_NUM] = {0};
diff --git a/mdc/src/image_mbuf_video_sender.h b/mdc/src/image_mbuf_video_sender.h
index 1c0a1c5d7b4cce67a7f89906a696fce42d660e9f..594901fb515effa1f2ad502528f2f30281ee1818 100644
--- a/mdc/src/image_mbuf_video_sender.h
+++ b/mdc/src/image_mbuf_video_sender.h
@@ -172,7 +172,7 @@ public:
         fclose(fp_yuv);
     }
 
-    int32_t InitThreadPara()
+    void InitThreadPara()
     {
         g_send_exit_state[VDEC_MAX_CHN_NUM] = {0};
         g_get_exit_state[VDEC_MAX_CHN_NUM] = {0};