diff --git a/mpp/hal/inc/mpp_hal.h b/mpp/hal/inc/mpp_hal.h
index b50d2644..2792bec7 100644
--- a/mpp/hal/inc/mpp_hal.h
+++ b/mpp/hal/inc/mpp_hal.h
@@ -72,7 +72,8 @@ typedef struct {
 typedef void*   MppHalCtx;
 
 typedef struct MppHalCfg_t {
-    RK_U32      size;
+    MppCtxType      type;
+    MppCodingType   coding;
 } MppHalCfg;
 
 
@@ -109,12 +110,12 @@ extern "C" {
 
 void *mpp_hal_thread(void *data);
 
-MPP_RET mpp_hal_init(MppHal *ctx, MppHalCfg cfg);
-MPP_RET mpp_hal_deinit(MppHal ctx);
+MPP_RET mpp_hal_init(MppHal **ctx, MppHalCfg *cfg);
+MPP_RET mpp_hal_deinit(MppHal *ctx);
 
-MPP_RET mpp_hal_reg_gen(MppHal ctx, MppHalDecTask task);
-MPP_RET mpp_hal_hw_start(MppHal ctx, MppHalDecTask task);
-MPP_RET mpp_hal_hw_wait(MppHal ctx, MppHalDecTask task);
+MPP_RET mpp_hal_reg_gen(MppHal *ctx, MppHalDecTask *task);
+MPP_RET mpp_hal_hw_start(MppHal *ctx, MppHalDecTask *task);
+MPP_RET mpp_hal_hw_wait(MppHal *ctx, MppHalDecTask *task);
 
 #ifdef __cplusplus
 }
diff --git a/mpp/hal/mpp_hal.cpp b/mpp/hal/mpp_hal.cpp
index ceeea211..9bd06fc1 100644
--- a/mpp/hal/mpp_hal.cpp
+++ b/mpp/hal/mpp_hal.cpp
@@ -16,6 +16,7 @@
 
 #define  MODULE_TAG "mpp_hal"
 
+#include "mpp_mem.h"
 #include "mpp_log.h"
 
 #include "mpp.h"
@@ -82,3 +83,38 @@ void *mpp_hal_thread(void *data)
     return NULL;
 }
 
+MPP_RET mpp_hal_init(MppHal **ctx, MppHalCfg *cfg)
+{
+    *ctx = mpp_malloc(MppHal, 1);
+    (void)cfg;
+    return MPP_OK;
+}
+
+MPP_RET mpp_hal_deinit(MppHal *ctx)
+{
+    mpp_free(ctx);
+    return MPP_OK;
+}
+
+MPP_RET mpp_hal_reg_gen(MppHal *ctx, MppHalDecTask *task)
+{
+    (void)ctx;
+    (void)task;
+    return MPP_OK;
+}
+
+MPP_RET mpp_hal_hw_start(MppHal *ctx, MppHalDecTask *task)
+{
+    (void)ctx;
+    (void)task;
+    return MPP_OK;
+}
+
+MPP_RET mpp_hal_hw_wait(MppHal *ctx, MppHalDecTask *task)
+{
+    (void)ctx;
+    (void)task;
+    return MPP_OK;
+}
+
+
diff --git a/mpp/mpp.cpp b/mpp/mpp.cpp
index c99c71ab..20160bcb 100644
--- a/mpp/mpp.cpp
+++ b/mpp/mpp.cpp
@@ -46,6 +46,8 @@ Mpp::Mpp(MppCtxType type, MppCodingType coding)
       mInternalGroup(NULL),
       mPacketGroup(NULL),
       mFrameGroup(NULL),
+      mDec(NULL),
+      mHal(NULL),
       mTheadCodec(NULL),
       mThreadHal(NULL),
       mType(type),
@@ -60,8 +62,16 @@ Mpp::Mpp(MppCtxType type, MppCodingType coding)
         mPackets    = new mpp_list((node_destructor)NULL);
         mFrames     = new mpp_list((node_destructor)mpp_frame_deinit);
         mTasks      = new mpp_list((node_destructor)NULL);
+
+        mpp_dec_init(&mDec, coding);
+        MppHalCfg cfg = {
+            type,
+            coding,
+        };
+        mpp_hal_init(&mHal, &cfg);
         mTheadCodec = new MppThread(mpp_dec_thread, this);
         mThreadHal  = new MppThread(mpp_hal_thread, this);
+
         mTask       = mpp_malloc(MppHalDecTask*, mTaskNum);
         mpp_buffer_group_normal_get(&mInternalGroup, MPP_BUFFER_TYPE_ION);
         mpp_buffer_group_normal_get(&mPacketGroup, MPP_BUFFER_TYPE_NORMAL);
@@ -72,8 +82,16 @@ Mpp::Mpp(MppCtxType type, MppCodingType coding)
         mFrames     = new mpp_list((node_destructor)NULL);
         mPackets    = new mpp_list((node_destructor)mpp_packet_deinit);
         mTasks      = new mpp_list((node_destructor)NULL);
+
+        mpp_dec_init(&mDec, coding);
+        MppHalCfg cfg = {
+            type,
+            coding,
+        };
+        mpp_hal_init(&mHal, &cfg);
         mTheadCodec = new MppThread(mpp_enc_thread, this);
         mThreadHal  = new MppThread(mpp_hal_thread, this);
+
         mTask       = mpp_malloc(MppHalDecTask*, mTaskNum);
         mpp_buffer_group_normal_get(&mInternalGroup, MPP_BUFFER_TYPE_ION);
         mpp_buffer_group_normal_get(&mPacketGroup, MPP_BUFFER_TYPE_NORMAL);
@@ -85,6 +103,7 @@ Mpp::Mpp(MppCtxType type, MppCodingType coding)
     }
 
     if (mFrames && mPackets && mTask &&
+        mDec && mHal &&
         mTheadCodec && mThreadHal &&
         mPacketGroup && mFrameGroup) {
         mTheadCodec->start();
@@ -115,6 +134,17 @@ void Mpp::clear()
         delete mThreadHal;
         mThreadHal = NULL;
     }
+    if (mDec) {
+        if (mType == MPP_CTX_DEC)
+            mpp_dec_deinit(mDec);
+        else
+            mpp_dec_deinit(mDec);
+        mDec = NULL;
+    }
+    if (mHal) {
+        mpp_hal_deinit(mHal);
+        mHal = NULL;
+    }
     if (mPackets) {
         delete mPackets;
         mPackets = NULL;
diff --git a/mpp/mpp.h b/mpp/mpp.h
index 10bf75e7..3cd0e4fa 100644
--- a/mpp/mpp.h
+++ b/mpp/mpp.h
@@ -77,7 +77,9 @@ public:
 
     RK_U32          mStatus;
 
-    void            *mCodec;
+    union {
+        MppDecCtx   *mDec;
+    };
     MppHal          *mHal;
 
     // decoder context
diff --git a/mpp/syntax/h264d_syntax.h b/mpp/syntax/h264d_syntax.h
index 31be8b4a..1b21fe71 100644
--- a/mpp/syntax/h264d_syntax.h
+++ b/mpp/syntax/h264d_syntax.h
@@ -415,5 +415,5 @@ typedef struct h264d_syntax_t {
     DXVA2_DecodeBufferDesc *buf;
 } H264D_Syntax_t;
 
-#endif /* end of __H264D_SYNTAX_H__ */
+#endif /*__H264D_SYNTAX_H__*/