diff --git a/kmpp/base/inc/kmpp_frame_impl.h b/kmpp/base/inc/kmpp_frame_impl.h
index 8ae450bb..1526d0b7 100644
--- a/kmpp/base/inc/kmpp_frame_impl.h
+++ b/kmpp/base/inc/kmpp_frame_impl.h
@@ -84,4 +84,8 @@ typedef struct KmppFrameImpl_t {
     KmppMeta self_meta;
 } KmppFrameImpl;
 
+typedef struct KmppFramePriv_t {
+    KmppMeta    meta;
+} KmppFramePriv;
+
 #endif /* __KMPP_FRAME_IMPL_H__ */
diff --git a/kmpp/base/inc/kmpp_packet.h b/kmpp/base/inc/kmpp_packet.h
index 7c5af989..f0008de8 100644
--- a/kmpp/base/inc/kmpp_packet.h
+++ b/kmpp/base/inc/kmpp_packet.h
@@ -29,6 +29,8 @@ extern "C" {
 #define KMPP_OBJ_ENTRY_TABLE    KMPP_PACKET_ENTRY_TABLE
 #include "kmpp_obj_func.h"
 
+rk_s32 kmpp_packet_get_meta(KmppPacket packet, KmppMeta *meta);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/kmpp/base/inc/kmpp_packet_impl.h b/kmpp/base/inc/kmpp_packet_impl.h
index b1ce3d5f..5c9b6be2 100644
--- a/kmpp/base/inc/kmpp_packet_impl.h
+++ b/kmpp/base/inc/kmpp_packet_impl.h
@@ -56,4 +56,8 @@ typedef struct KmppPacketImpl_t {
     RingBuf buf;
 } KmppPacketImpl;
 
+typedef struct KmppPacketPriv_t {
+    KmppMeta    meta;
+} KmppPacketPriv;
+
 #endif /* __KMPP_PACKET_IMPL_H__ */
\ No newline at end of file
diff --git a/kmpp/base/kmpp_frame.c b/kmpp/base/kmpp_frame.c
index 865091f0..00e10ccf 100644
--- a/kmpp/base/kmpp_frame.c
+++ b/kmpp/base/kmpp_frame.c
@@ -6,53 +6,76 @@
 #define MODULE_TAG "kmpp_frame"
 
 #include "kmpp_frame_impl.h"
-#include "kmpp_obj_impl.h"
-
-static rk_s32 kmpp_frame_impl_deinit(void *entry, KmppObj obj, const char *caller)
-{
-    KmppFrameImpl *impl = (KmppFrameImpl *)entry;
-    (void)obj;
-
-    if (impl->self_meta) {
-        kmpp_obj_put_impl(impl->self_meta, caller);
-        impl->self_meta = NULL;
-    }
-
-    return rk_ok;
-}
 
 rk_s32 kmpp_frame_get_meta(KmppFrame frame, KmppMeta *meta)
 {
-    KmppFrameImpl *impl = (KmppFrameImpl *)kmpp_obj_to_entry(frame);
+    KmppFramePriv *priv = NULL;
     KmppShmPtr sptr;
     rk_s32 ret;
 
-    if (!impl || !meta) {
-        mpp_loge_f("invalid impl %p or meta %p\n", impl, meta);
+    if (!frame || !meta) {
+        mpp_loge_f("invalid frame %p meta %p\n", frame, meta);
         return rk_nok;
     }
 
-    if (impl->self_meta) {
-        *meta = impl->self_meta;
+    priv = (KmppFramePriv *)kmpp_obj_to_priv(frame);
+    if (priv->meta) {
+        *meta = priv->meta;
         return rk_ok;
     }
 
     kmpp_obj_get_shm(frame, "meta", &sptr);
-    ret = kmpp_obj_get_by_sptr_f(&impl->self_meta, &sptr);
+    ret = kmpp_obj_get_by_sptr_f(&priv->meta, &sptr);
     if (ret) {
         *meta = NULL;
         mpp_loge_f("self_meta get obj by sptr failed, ret %d\n", ret);
         return ret;
     }
 
-    *meta = impl->self_meta;
+    *meta = priv->meta;
+
+    return rk_ok;
+}
+
+static rk_s32 kmpp_frame_impl_init(void *entry, KmppObj obj, const char *caller)
+{
+    KmppFramePriv *priv = (KmppFramePriv *)kmpp_obj_to_priv(obj);
+    (void)entry;
+
+    if (!priv) {
+        mpp_loge_f("invalid %p without priv at %s\n", obj, caller);
+        return rk_nok;
+    }
+
+    priv->meta = NULL;
+
+    return rk_ok;
+}
+
+static rk_s32 kmpp_frame_impl_deinit(void *entry, KmppObj obj, const char *caller)
+{
+    KmppFramePriv *priv = (KmppFramePriv *)kmpp_obj_to_priv(obj);
+    (void)entry;
+
+    if (!priv) {
+        mpp_loge_f("invalid %p without priv at %s\n", obj, caller);
+        return rk_nok;
+    }
+
+    if (priv->meta) {
+        kmpp_obj_put_impl(priv->meta, caller);
+        priv->meta = NULL;
+    }
+
     return rk_ok;
 }
 
 #define KMPP_OBJ_NAME               kmpp_frame
 #define KMPP_OBJ_INTF_TYPE          KmppFrame
 #define KMPP_OBJ_IMPL_TYPE          KmppFrameImpl
+#define KMPP_OBJ_FUNC_INIT          kmpp_frame_impl_init
 #define KMPP_OBJ_FUNC_DEINIT        kmpp_frame_impl_deinit
 #define KMPP_OBJ_SGLN_ID            MPP_SGLN_KMPP_FRAME
 #define KMPP_OBJ_ENTRY_TABLE        KMPP_FRAME_ENTRY_TABLE
+#define KMPP_OBJ_PRIV_SIZE          sizeof(KmppFramePriv)
 #include "kmpp_obj_helper.h"
diff --git a/kmpp/base/kmpp_packet.c b/kmpp/base/kmpp_packet.c
index 779a2062..d87d923d 100644
--- a/kmpp/base/kmpp_packet.c
+++ b/kmpp/base/kmpp_packet.c
@@ -5,9 +5,75 @@
 
 #include "kmpp_packet_impl.h"
 
+rk_s32 kmpp_packet_get_meta(KmppPacket packet, KmppMeta *meta)
+{
+    KmppPacketPriv *priv = NULL;
+    KmppShmPtr sptr;
+    rk_s32 ret;
+
+    if (!packet || !meta) {
+        mpp_loge_f("invalid packet %p meta %p\n", packet, meta);
+        return rk_nok;
+    }
+
+    priv = (KmppPacketPriv *)kmpp_obj_to_priv(packet);
+    if (priv->meta) {
+        *meta = priv->meta;
+        return rk_ok;
+    }
+
+    kmpp_obj_get_shm(packet, "meta", &sptr);
+    ret = kmpp_obj_get_by_sptr_f(priv->meta, &sptr);
+    if (ret) {
+        *meta = NULL;
+        mpp_loge_f("self_meta get obj by sptr failed, ret %d\n", ret);
+        return ret;
+    }
+
+    *meta = priv->meta;
+
+    return rk_ok;
+}
+
+static rk_s32 kmpp_packet_impl_init(void *entry, KmppObj obj, const char *caller)
+{
+    KmppPacketPriv *priv = (KmppPacketPriv *)kmpp_obj_to_priv(obj);
+    (void)entry;
+
+    if (!priv) {
+        mpp_loge_f("invalid %p without priv at %s\n", obj, caller);
+        return rk_nok;
+    }
+
+    priv->meta = NULL;
+
+    return rk_ok;
+}
+
+static rk_s32 kmpp_packet_impl_deinit(void *entry, KmppObj obj, const char *caller)
+{
+    KmppPacketPriv *priv = (KmppPacketPriv *)kmpp_obj_to_priv(obj);
+    (void)entry;
+
+    if (!priv) {
+        mpp_loge_f("invalid %p without priv at %s\n", obj, caller);
+        return rk_nok;
+    }
+
+    if (priv->meta) {
+        kmpp_obj_put_impl(priv->meta, caller);
+        priv->meta = NULL;
+    }
+
+    return rk_ok;
+}
+
 #define KMPP_OBJ_NAME               kmpp_packet
 #define KMPP_OBJ_INTF_TYPE          KmppPacket
 #define KMPP_OBJ_IMPL_TYPE          KmppPacketImpl
+#define KMPP_OBJ_FUNC_INIT          kmpp_packet_impl_init
+#define KMPP_OBJ_FUNC_DEINIT        kmpp_packet_impl_deinit
 #define KMPP_OBJ_SGLN_ID            MPP_SGLN_KMPP_PACKET
 #define KMPP_OBJ_ENTRY_TABLE        KMPP_PACKET_ENTRY_TABLE
+#define KMPP_OBJ_PRIV_SIZE          sizeof(KmppPacketPriv)
 #include "kmpp_obj_helper.h"
\ No newline at end of file