diff --git a/mpp/legacy/vpu_api_legacy.cpp b/mpp/legacy/vpu_api_legacy.cpp
index 9f098688..a7e6d25e 100644
--- a/mpp/legacy/vpu_api_legacy.cpp
+++ b/mpp/legacy/vpu_api_legacy.cpp
@@ -564,6 +564,8 @@ RK_S32 VpuApiLegacy::encoder_sendframe(VpuCodecContext *ctx, EncInputStream_t *a
     RK_U32 hor_stride   = MPP_ALIGN(width,  16);
     RK_U32 ver_stride   = MPP_ALIGN(height, 16);
     RK_S32 pts          = aEncInStrm->timeUs;
+    RK_S32 import_fd    = -1;
+    RK_U32 import_size  = 0;
 
     /* try import input buffer and output buffer */
     MppFrame frame = NULL;
@@ -598,16 +600,21 @@ RK_S32 VpuApiLegacy::encoder_sendframe(VpuCodecContext *ctx, EncInputStream_t *a
                       aEncInStrm->bufPhyAddr, aEncInStrm->size);
             goto FUNC_RET;
         }
+        import_fd   = mpp_buffer_get_fd(buffer);
+        import_size = mpp_buffer_get_size(buffer);
+
+        mpp_frame_set_buffer(frame, buffer);
+
+        mpp_buffer_put(buffer);
+        buffer = NULL;
     }
-    mpp_frame_set_buffer(frame, buffer);
 
     if (aEncInStrm->nFlags || aEncInStrm->size == 0) {
         mpp_log_f("found eos true");
         mpp_frame_set_eos(frame, 1);
     }
 
-    vpu_api_dbg_input("w %d h %d fd %d size %d\n", width, height,
-                      mpp_buffer_get_fd(buffer), mpp_buffer_get_size(buffer));
+    vpu_api_dbg_input("w %d h %d fd %d size %d\n", width, height, import_fd, import_size);
 
     ret = mpi->encode_put_frame(mpp_ctx, frame);
     if (ret)
@@ -615,10 +622,6 @@ RK_S32 VpuApiLegacy::encoder_sendframe(VpuCodecContext *ctx, EncInputStream_t *a
 
     aEncInStrm->size = 0;
 FUNC_RET:
-    if (buffer) {
-        mpp_buffer_put(buffer);
-        buffer = NULL;
-    }
 
     vpu_api_dbg_func("leave ret %d\n", ret);
     return ret;
diff --git a/mpp/mpp.cpp b/mpp/mpp.cpp
index 4c58b5bc..67cc4bc8 100644
--- a/mpp/mpp.cpp
+++ b/mpp/mpp.cpp
@@ -332,6 +332,7 @@ MPP_RET Mpp::get_packet(MppPacket *packet)
 
     MPP_RET ret = MPP_OK;
     MppTask task = NULL;
+    MppFrame frame = NULL;
 
     do {
         if (NULL == task) {
@@ -354,6 +355,12 @@ MPP_RET Mpp::get_packet(MppPacket *packet)
 
         mpp_assert(task);
 
+        mpp_task_meta_get_frame(task, MPP_META_KEY_INPUT_FRM, &frame);
+        if (frame) {
+            mpp_frame_deinit(&frame);
+            frame = NULL;
+        }
+
         ret = mpp_task_meta_get_packet(task, MPP_META_KEY_OUTPUT_PKT, packet);
         if (ret) {
             mpp_log_f("failed to get output packet from task ret %d\n", ret);