diff --git a/dlls/mfplay/player.c b/dlls/mfplay/player.c
index adb88fff053..0e33dcbd649 100644
--- a/dlls/mfplay/player.c
+++ b/dlls/mfplay/player.c
@@ -909,11 +909,27 @@ static HRESULT WINAPI media_player_GetPosition(IMFPMediaPlayer *iface, REFGUID p
     return E_NOTIMPL;
 }
 
-static HRESULT WINAPI media_player_GetDuration(IMFPMediaPlayer *iface, REFGUID postype, PROPVARIANT *position)
+static HRESULT WINAPI media_player_GetDuration(IMFPMediaPlayer *iface, REFGUID postype, PROPVARIANT *duration)
 {
-    FIXME("%p, %s, %p.\n", iface, debugstr_guid(postype), position);
+    struct media_player *player = impl_from_IMFPMediaPlayer(iface);
+    HRESULT hr;
 
-    return E_NOTIMPL;
+    TRACE("%p, %s, %p.\n", iface, debugstr_guid(postype), duration);
+
+    if (!postype || !duration)
+        return E_POINTER;
+
+    EnterCriticalSection(&player->cs);
+    if (player->state == MFP_MEDIAPLAYER_STATE_SHUTDOWN)
+        hr = MF_E_SHUTDOWN;
+    else if (!player->item)
+        hr = MF_E_INVALIDREQUEST;
+    else
+        /* FIXME: use start/stop markers for resulting duration */
+        hr = IMFPMediaItem_GetDuration(player->item, postype, duration);
+    LeaveCriticalSection(&player->cs);
+
+    return hr;
 }
 
 static HRESULT WINAPI media_player_SetRate(IMFPMediaPlayer *iface, float rate)
diff --git a/dlls/mfplay/tests/mfplay.c b/dlls/mfplay/tests/mfplay.c
index f18e041a4d0..cfa689c189e 100644
--- a/dlls/mfplay/tests/mfplay.c
+++ b/dlls/mfplay/tests/mfplay.c
@@ -148,6 +148,7 @@ static void test_shutdown(void)
     IMFPMediaPlayer *player;
     float slowest, fastest;
     IMFPMediaItem *item;
+    PROPVARIANT propvar;
     COLORREF color;
     HWND window;
     DWORD mode;
@@ -217,6 +218,15 @@ todo_wine
     hr = IMFPMediaPlayer_GetVideoWindow(player, &window);
     ok(hr == S_OK, "Unexpected hr %#x.\n", hr);
 
+    hr = IMFPMediaPlayer_GetDuration(player, NULL, NULL);
+    ok(hr == E_POINTER, "Unexpected hr %#x.\n", hr);
+
+    hr = IMFPMediaPlayer_GetDuration(player, &MFP_POSITIONTYPE_100NS, NULL);
+    ok(hr == E_POINTER, "Unexpected hr %#x.\n", hr);
+
+    hr = IMFPMediaPlayer_GetDuration(player, &MFP_POSITIONTYPE_100NS, &propvar);
+    ok(hr == MF_E_SHUTDOWN, "Unexpected hr %#x.\n", hr);
+
     hr = IMFPMediaPlayer_Shutdown(player);
     ok(hr == S_OK, "Unexpected hr %#x.\n", hr);
 
@@ -345,10 +355,33 @@ todo_wine
     DestroyWindow(window);
 }
 
+static void test_duration(void)
+{
+    IMFPMediaPlayer *player;
+    PROPVARIANT propvar;
+    HRESULT hr;
+
+    hr = MFPCreateMediaPlayer(NULL, FALSE, 0, NULL, NULL, &player);
+    ok(hr == S_OK, "Unexpected hr %#x.\n", hr);
+
+    /* No media item. */
+    hr = IMFPMediaPlayer_GetDuration(player, NULL, NULL);
+    ok(hr == E_POINTER, "Unexpected hr %#x.\n", hr);
+
+    hr = IMFPMediaPlayer_GetDuration(player, &MFP_POSITIONTYPE_100NS, NULL);
+    ok(hr == E_POINTER, "Unexpected hr %#x.\n", hr);
+
+    hr = IMFPMediaPlayer_GetDuration(player, &MFP_POSITIONTYPE_100NS, &propvar);
+    ok(hr == MF_E_INVALIDREQUEST, "Unexpected hr %#x.\n", hr);
+
+    IMFPMediaPlayer_Release(player);
+}
+
 START_TEST(mfplay)
 {
     test_create_player();
     test_shutdown();
     test_media_item();
     test_video_control();
+    test_duration();
 }