diff --git a/inc/mpp_frame.h b/inc/mpp_frame.h
index 98b13a2a..3954d2e4 100644
--- a/inc/mpp_frame.h
+++ b/inc/mpp_frame.h
@@ -157,8 +157,14 @@ RK_S64  mpp_frame_get_pts(const MppFrame frame);
 void    mpp_frame_set_pts(MppFrame frame, RK_S64 pts);
 RK_S64  mpp_frame_get_dts(const MppFrame frame);
 void    mpp_frame_set_dts(MppFrame frame, RK_S64 dts);
+
+/*
+ * flow control parmeter
+ */
 RK_U32  mpp_frame_get_eos(const MppFrame frame);
 void    mpp_frame_set_eos(MppFrame frame, RK_U32 eos);
+RK_U32  mpp_frame_get_info_change(const MppFrame frame);
+void    mpp_frame_set_info_change(MppFrame frame, RK_U32 info_change);
 
 /*
  * buffer parameter
diff --git a/mpp/mpp_frame.cpp b/mpp/mpp_frame.cpp
index 04a1f59d..1da9803e 100644
--- a/mpp/mpp_frame.cpp
+++ b/mpp/mpp_frame.cpp
@@ -133,6 +133,7 @@ MPP_FRAME_ACCESSORS(RK_U32, mode)
 MPP_FRAME_ACCESSORS(RK_S64, pts)
 MPP_FRAME_ACCESSORS(RK_S64, dts)
 MPP_FRAME_ACCESSORS(RK_U32, eos)
+MPP_FRAME_ACCESSORS(RK_U32, info_change)
 MPP_FRAME_ACCESSORS(MppFrameColorRange, color_range)
 MPP_FRAME_ACCESSORS(MppFrameColorPrimaries, color_primaries)
 MPP_FRAME_ACCESSORS(MppFrameColorTransferCharacteristic, color_trc)
diff --git a/mpp/mpp_frame_impl.h b/mpp/mpp_frame_impl.h
index 410fc683..78100877 100644
--- a/mpp/mpp_frame_impl.h
+++ b/mpp/mpp_frame_impl.h
@@ -53,8 +53,10 @@ struct MppFrameImpl_t {
 
     /*
      * eos - end of stream
+     * info_change - set when buffer resized or frame infomation changed
      */
     RK_U32  eos;
+    RK_U32  info_change;
 
     MppFrameColorRange color_range;
     MppFrameColorPrimaries color_primaries;