diff --git a/mpp/codec/inc/mpp_enc.h b/mpp/codec/inc/mpp_enc.h
index 1b7eb144..d320897b 100644
--- a/mpp/codec/inc/mpp_enc.h
+++ b/mpp/codec/inc/mpp_enc.h
@@ -17,7 +17,13 @@
 #ifndef __MPP_ENC_H__
 #define __MPP_ENC_H__
 
-#include "rk_type.h"
+#include "rk_mpi.h"
+
+typedef struct MppEnc_t MppEnc;
+
+struct MppEnc_t {
+    MppCodingType       coding;
+};
 
 #ifdef __cplusplus
 extern "C" {
@@ -29,6 +35,12 @@ extern "C" {
 void *mpp_enc_control_thread(void *data);
 void *mpp_enc_hal_thread(void *data);
 
+
+MPP_RET mpp_enc_init(MppEnc **enc, MppCodingType coding);
+MPP_RET mpp_enc_deinit(MppEnc *enc);
+
+MPP_RET mpp_enc_reset(MppEnc *enc);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/mpp/codec/mpp_enc.cpp b/mpp/codec/mpp_enc.cpp
index 21a1d54f..271fc7b3 100644
--- a/mpp/codec/mpp_enc.cpp
+++ b/mpp/codec/mpp_enc.cpp
@@ -114,3 +114,35 @@ void *mpp_enc_hal_thread(void *data)
     return NULL;
 }
 
+MPP_RET mpp_enc_init(MppEnc **enc, MppCodingType coding)
+{
+    MppEnc *p = mpp_calloc(MppEnc, 1);
+    if (NULL == p) {
+        mpp_err_f("failed to malloc context\n");
+        return MPP_ERR_NULL_PTR;
+    }
+
+    p->coding = coding;
+    *enc = p;
+
+    return MPP_OK;
+}
+
+MPP_RET mpp_enc_deinit(MppEnc *enc)
+{
+    if (NULL == enc) {
+        mpp_err_f("found NULL input\n");
+        return MPP_ERR_NULL_PTR;
+    }
+
+    mpp_free(enc);
+    return MPP_OK;
+}
+
+MPP_RET mpp_enc_reset(MppEnc *enc)
+{
+    (void)enc;
+    return MPP_OK;
+}
+
+
diff --git a/mpp/mpp.cpp b/mpp/mpp.cpp
index 98862d04..95b25164 100644
--- a/mpp/mpp.cpp
+++ b/mpp/mpp.cpp
@@ -77,7 +77,7 @@ Mpp::Mpp(MppCtxType type, MppCodingType coding)
         mPackets    = new mpp_list((node_destructor)mpp_packet_deinit);
         mTasks      = new mpp_list((node_destructor)NULL);
 
-        mpp_dec_init(&mEnc, coding);
+        mpp_enc_init(&mEnc, coding);
         mThreadCodec = new MppThread(mpp_enc_control_thread, this);
         mThreadHal  = new MppThread(mpp_enc_hal_thread, this);
 
@@ -130,7 +130,7 @@ void Mpp::clear()
             mDec = NULL;
         }
         else {
-            mpp_dec_deinit(mEnc);
+            mpp_enc_deinit(mEnc);
             mEnc = NULL;
         }
     }
@@ -286,7 +286,7 @@ MPP_RET Mpp::reset()
         mThreadCodec->signal();
         mThreadCodec->reset_wait();
     } else {
-        mpp_dec_reset(mEnc);
+        mpp_enc_reset(mEnc);
     }
     mThreadCodec->reset_unlock();
 
diff --git a/mpp/mpp.h b/mpp/mpp.h
index 165e3a6e..587cf17b 100644
--- a/mpp/mpp.h
+++ b/mpp/mpp.h
@@ -19,6 +19,7 @@
 
 #include "mpp_list.h"
 #include "mpp_dec.h"
+#include "mpp_enc.h"
 
 #define MPP_DBG_FUNCTION                (0x00000001)
 #define MPP_DBG_PACKET                  (0x00000002)
@@ -107,7 +108,7 @@ public:
     RK_U32          mStatus;
 
     MppDec          *mDec;
-    MppDec          *mEnc;
+    MppEnc          *mEnc;
 
 private:
     void clear();