diff --git a/inc/mpp_packet.h b/inc/mpp_packet.h
index 4c814415..9f918502 100644
--- a/inc/mpp_packet.h
+++ b/inc/mpp_packet.h
@@ -29,7 +29,10 @@ extern "C" {
 /*
  * MppPacket interface
  */
-MPP_RET mpp_packet_init(MppPacket *packet, void *data, RK_U32 size);
+MPP_RET mpp_packet_init(MppPacket *packet, void *data, size_t size);
+MPP_RET mpp_packet_set_pts(MppPacket packet, RK_S64 pts);
+MPP_RET mpp_packet_set_dts(MppPacket packet, RK_S64 dts);
+MPP_RET mpp_packet_set_eos(MppPacket packet);
 MPP_RET mpp_packet_deinit(MppPacket *packet);
 
 #ifdef __cplusplus
diff --git a/mpp/CMakeLists.txt b/mpp/CMakeLists.txt
index be66bf73..ccbd6ecc 100644
--- a/mpp/CMakeLists.txt
+++ b/mpp/CMakeLists.txt
@@ -21,6 +21,7 @@ add_subdirectory(hal)
 # ----------------------------------------------------------------------------
 add_library(mpp STATIC
     mpp_info.cpp
+	mpp_packet.cpp
 	mpi_impl.cpp
 	mpi.cpp
     )
diff --git a/mpp/mpi.cpp b/mpp/mpi.cpp
index 35e1b8cb..9ee20c39 100644
--- a/mpp/mpi.cpp
+++ b/mpp/mpi.cpp
@@ -186,7 +186,7 @@ MPP_RET mpp_deinit(MppCtx* ctx)
         mpp_free(p->api);
     if (p)
         mpp_free(p);
-    p = NULL;
+    *ctx = NULL;
 
     MPI_FUNCTION_LEAVE();
     return MPP_OK;
diff --git a/mpp/mpp_packet.cpp b/mpp/mpp_packet.cpp
new file mode 100644
index 00000000..b69c79f5
--- /dev/null
+++ b/mpp/mpp_packet.cpp
@@ -0,0 +1,94 @@
+/*
+ * Copyright 2010 Rockchip Electronics S.LSI Co. LTD
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define MODULE_TAG "mpp_packet"
+
+#include "mpp_log.h"
+#include "mpp_mem.h"
+#include "mpp_packet.h"
+#include "mpp_packet_impl.h"
+
+MPP_RET mpp_packet_init(MppPacket *packet, void *data, size_t size)
+{
+    if (NULL == packet || NULL == data || 0 == size) {
+        mpp_err("mpp_packet_init invalid input packet %p data %p size %d\n",
+                 packet, data, size);
+        return MPP_ERR_NULL_PTR;
+    }
+
+    mpp_packet_impl *p = mpp_calloc(mpp_packet_impl, 1);
+    if (NULL == p) {
+        mpp_err("mpp_packet_init malloc failed\n");
+        return MPP_ERR_NULL_PTR;
+    }
+
+    p->data = data;
+    p->size = size;
+
+    *packet = p;
+
+    return MPP_OK;
+}
+
+MPP_RET mpp_packet_set_pts(MppPacket packet, RK_S64 pts)
+{
+    if (NULL == packet) {
+        mpp_err("mpp_packet_set_pts invalid input %p\n", packet);
+        return MPP_ERR_NULL_PTR;
+    }
+
+    mpp_packet_impl *p = (mpp_packet_impl *)packet;
+    p->pts = pts;
+    return MPP_OK;
+}
+
+MPP_RET mpp_packet_set_dts(MppPacket packet, RK_S64 dts)
+{
+    if (NULL == packet) {
+        mpp_err("mpp_packet_set_pts invalid input %p\n", packet);
+        return MPP_ERR_NULL_PTR;
+    }
+
+    mpp_packet_impl *p = (mpp_packet_impl *)packet;
+    p->dts = dts;
+    return MPP_OK;
+}
+
+MPP_RET mpp_packet_set_eos(MppPacket packet)
+{
+    if (NULL == packet) {
+        mpp_err("mpp_packet_set_pts invalid input %p\n", packet);
+        return MPP_ERR_NULL_PTR;
+    }
+
+    mpp_packet_impl *p = (mpp_packet_impl *)packet;
+    p->flag |= MPP_PACKET_FLAG_EOS;
+    return MPP_OK;
+}
+
+MPP_RET mpp_packet_deinit(MppPacket *packet)
+{
+    if (NULL == packet) {
+        mpp_err("mpp_packet_deinit invalid input packet %p\n", packet);
+        return MPP_ERR_NULL_PTR;
+    }
+
+    mpp_packet_impl *p = (mpp_packet_impl *)*packet;
+    mpp_free(p);
+    *packet = NULL;
+    return MPP_OK;
+}
+
diff --git a/mpp/mpp_packet_impl.h b/mpp/mpp_packet_impl.h
new file mode 100644
index 00000000..ade6575d
--- /dev/null
+++ b/mpp/mpp_packet_impl.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright 2010 Rockchip Electronics S.LSI Co. LTD
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __MPP_IMPL_H__
+#define __MPP_IMPL_H__
+
+#include "rk_type.h"
+
+#define MPP_PACKET_FLAG_EOS         (0x00000001)
+
+/*
+ * mpp_packet_imp structure
+ *
+ * data     : pointer
+ * size     : total buffer size
+ * offset   : valid data start offset
+ * length   : valid data length
+ * pts      : packet pts
+ * dts      : packet dts
+ */
+typedef struct {
+    void   *data;
+    size_t  size;
+    size_t  offset;
+    size_t  length;
+
+    RK_S64  pts;
+    RK_S64  dts;
+
+    RK_U32  flag;
+} mpp_packet_impl;
+
+#endif /*__MPP_IMPL_H__*/
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 2efcaf6d..75e5d1b8 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -21,5 +21,8 @@ endmacro()
 # legacy vpu_api unit test
 add_mpp_test(vpu_api)
 
+# mpp_packet unit test
+add_mpp_test(mpp_packet)
+
 # mpi unit test
 add_mpp_test(mpi)
diff --git a/test/mpp_packet_test.c b/test/mpp_packet_test.c
new file mode 100644
index 00000000..0ac6002b
--- /dev/null
+++ b/test/mpp_packet_test.c
@@ -0,0 +1,67 @@
+/*
+ * Copyright 2010 Rockchip Electronics S.LSI Co. LTD
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define MODULE_TAG "mpp_packet_test"
+
+#include <stdlib.h>
+
+#include "mpp_log.h"
+#include "mpp_packet.h"
+
+#define MPP_PACKET_TEST_SIZE    1024
+
+int main()
+{
+    MPP_RET ret;
+    MppPacket packet = NULL;
+    void *data = NULL;
+    size_t size = MPP_PACKET_TEST_SIZE;
+
+    mpp_log("mpp_packet_test start\n");
+
+    data = malloc(size);
+    if (NULL == data) {
+        mpp_err("mpp_packet_test malloc failed\n");
+        goto MPP_PACKET_failed;
+    }
+
+    ret = mpp_packet_init(&packet, data, size);
+    if (MPP_OK != ret) {
+        mpp_err("mpp_packet_test mpp_packet_init failed\n");
+        goto MPP_PACKET_failed;
+    }
+    mpp_packet_set_eos(packet);
+    if (MPP_OK != ret) {
+        mpp_err("mpp_packet_test mpp_packet_set_eos failed\n");
+        goto MPP_PACKET_failed;
+    }
+    mpp_packet_deinit(&packet);
+
+    free(data);
+    mpp_log("mpp_packet_test success\n");
+    return ret;
+
+MPP_PACKET_failed:
+    if (packet)
+        mpp_packet_deinit(&packet);
+
+    if (data)
+        free(data);
+
+    mpp_log("mpp_packet_test failed\n");
+    return ret;
+}
+