[PATCH v5 1/3] mf: Handle timer time behind clock time in present_clock_schedule_timer().

[Paul Gofman]

From: Paul Gofman

---
 dlls/mf/clock.c    |  5 +++-
 dlls/mf/tests/mf.c | 59 ++++++++++++++++++++++++++++++++++++----------
 2 files changed, 51 insertions(+), 13 deletions(-)

diff --git a/dlls/mf/clock.c b/dlls/mf/clock.c
index e9877533a5a..aef4366c6d9 100644
--- a/dlls/mf/clock.c
+++ b/dlls/mf/clock.c
@@ -819,7 +819,10 @@ static HRESULT present_clock_schedule_timer(struct presentation_clock *clock, DW
             WARN("Failed to get clock time, hr %#lx.\n", hr);
             return hr;
         }
-        time -= clocktime;
+        if (time > clocktime)
+            time -= clocktime;
+        else
+            time = 0;
     }

frequency = clock->frequency / 1000;
diff --git a/dlls/mf/tests/mf.c b/dlls/mf/tests/mf.c
index 35ccde2f9cb..3a5d91ab87d 100644
--- a/dlls/mf/tests/mf.c
+++ b/dlls/mf/tests/mf.c
@@ -1927,6 +1927,7 @@ struct test_callback

HANDLE event;
     IMFMediaEvent *media_event;
+    BOOL check_media_event;
 };

static struct test_callback *impl_from_IMFAsyncCallback(IMFAsyncCallback *iface)
@@ -1987,15 +1988,18 @@ static HRESULT WINAPI testcallback_Invoke(IMFAsyncCallback *iface, IMFAsyncResul
     if (callback->media_event)
         IMFMediaEvent_Release(callback->media_event);

-    hr = IMFAsyncResult_GetObject(result, &object);
-    ok(hr == E_POINTER, "Unexpected hr %#lx.\n", hr);
+    if (callback->check_media_event)
+    {
+        hr = IMFAsyncResult_GetObject(result, &object);
+        ok(hr == E_POINTER, "Unexpected hr %#lx.\n", hr);

-    hr = IMFAsyncResult_GetState(result, &object);
-    ok(hr == S_OK, "Unexpected hr %#lx.\n", hr);
-    hr = IMFMediaEventGenerator_EndGetEvent((IMFMediaEventGenerator *)object,
-            result, &callback->media_event);
-    ok(hr == S_OK, "Unexpected hr %#lx.\n", hr);
-    IUnknown_Release(object);
+        hr = IMFAsyncResult_GetState(result, &object);
+        ok(hr == S_OK, "Unexpected hr %#lx.\n", hr);
+        hr = IMFMediaEventGenerator_EndGetEvent((IMFMediaEventGenerator *)object,
+                result, &callback->media_event);
+        ok(hr == S_OK, "Unexpected hr %#lx.\n", hr);
+        IUnknown_Release(object);
+    }

SetEvent(callback->event);

@@ -2011,7 +2015,7 @@ static const IMFAsyncCallbackVtbl testcallbackvtbl =
     testcallback_Invoke,
 };

-static IMFAsyncCallback *create_test_callback(void)
+static IMFAsyncCallback *create_test_callback(BOOL check_media_event)
 {
     struct test_callback *callback;

@@ -2019,6 +2023,7 @@ static IMFAsyncCallback *create_test_callback(void)
         return NULL;

callback->refcount = 1;
+    callback->check_media_event = check_media_event;
     callback->IMFAsyncCallback_iface.lpVtbl = &testcallbackvtbl;
     callback->event = CreateEventW(NULL, FALSE, FALSE, NULL);
     ok(!!callback->event, "CreateEventW failed, error %lu\n", GetLastError());
@@ -2107,8 +2112,8 @@ static void test_media_session_events(void)
     hr = MFStartup(MF_VERSION, MFSTARTUP_FULL);
     ok(hr == S_OK, "Startup failure, hr %#lx.\n", hr);

-    callback = create_test_callback();
-    callback2 = create_test_callback();
+    callback = create_test_callback(TRUE);
+    callback2 = create_test_callback(TRUE);

hr = MFCreateMediaSession(NULL, &session);
     ok(hr == S_OK, "Failed to create media session, hr %#lx.\n", hr);
@@ -2163,7 +2168,7 @@ static void test_media_session_events(void)
     IMFAsyncCallback_Release(callback2);

-    callback = create_test_callback();
+    callback = create_test_callback(TRUE);

hr = MFCreateMediaSession(NULL, &session);
     ok(hr == S_OK, "Unexpected hr %#lx.\n", hr);
@@ -3838,15 +3843,20 @@ static void test_presentation_clock(void)
     };
     IMFClockStateSink test_sink = { &test_clock_sink_vtbl };
     IMFPresentationTimeSource *time_source;
+    struct test_callback *timer_callback;
     MFCLOCK_PROPERTIES props, props2;
     IMFRateControl *rate_control;
     IMFPresentationClock *clock;
+    IMFAsyncCallback *callback;
+    IUnknown *timer_cancel_key;
     MFSHUTDOWN_STATUS status;
     IMFShutdown *shutdown;
     MFTIME systime, time;
     LONGLONG clock_time;
     MFCLOCK_STATE state;
+    IMFTimer *timer;
     unsigned int i;
+    DWORD t1, t2;
     DWORD value;
     float rate;
     HRESULT hr;
@@ -4070,6 +4080,31 @@ static void test_presentation_clock(void)

IMFRateControl_Release(rate_control);

+
+    hr = IMFPresentationClock_QueryInterface(clock, &IID_IMFTimer, (void **)&timer);
+    ok(hr == S_OK, "got hr %#lx.\n", hr);
+
+    hr = IMFPresentationClock_Start(clock, 200000);
+    ok(hr == S_OK, "got hr %#lx.\n", hr);
+
+    hr = IMFPresentationClock_GetCorrelatedTime(clock, 0, &time, &systime);
+    ok(hr == S_OK, "got hr %#lx.\n", hr);
+
+    callback = create_test_callback(FALSE);
+    timer_callback = impl_from_IMFAsyncCallback(callback);
+    hr = IMFTimer_SetTimer(timer, 0, 100000, callback, NULL, &timer_cancel_key);
+    ok(hr == S_OK, "got hr %#lx.\n", hr);
+
+    t1 = GetTickCount();
+    ok(WaitForSingleObject(timer_callback->event, 4000) == WAIT_OBJECT_0, "WaitForSingleObject failed.\n");
+    t2 = GetTickCount();
+
+    ok(t2 - t1 < 200, "unexpected time difference %lu.\n", t2 - t1);
+
+    IUnknown_Release(timer_cancel_key);
+    IMFTimer_Release(timer);
+    IMFAsyncCallback_Release(callback);
+
     hr = IMFPresentationClock_QueryInterface(clock, &IID_IMFShutdown, (void **)&shutdown);
     ok(hr == S_OK, "Failed to get shutdown interface, hr %#lx.\n", hr);