[PATCH v2 2/4] amstream: Implement MediaStreamFilter::GetState.

[Zebediah Figura]

From: Anton Baskanov

Signed-off-by: Anton Baskanov 
Signed-off-by: Zebediah Figura 
---
v2: punctuate a couple of messages.

dlls/amstream/filter.c         | 15 +++++++++++++--
 dlls/amstream/tests/amstream.c | 33 +++++++++++++++++++++++++++++++++
 2 files changed, 46 insertions(+), 2 deletions(-)

diff --git a/dlls/amstream/filter.c b/dlls/amstream/filter.c
index 80a885de244..1cb2ca71bac 100644
--- a/dlls/amstream/filter.c
+++ b/dlls/amstream/filter.c
@@ -171,6 +171,7 @@ struct filter
     IFilterGraph *graph;
     ULONG nb_streams;
     IAMMediaStream **streams;
+    FILTER_STATE state;
 };

static inline struct filter *impl_from_IMediaStreamFilter(IMediaStreamFilter *iface)
@@ -264,9 +265,19 @@ static HRESULT WINAPI filter_Run(IMediaStreamFilter *iface, REFERENCE_TIME start

static HRESULT WINAPI filter_GetState(IMediaStreamFilter *iface, DWORD timeout, FILTER_STATE *state)
 {
-    FIXME("iface %p, timeout %u, state %p, stub!\n", iface, timeout, state);
+    struct filter *filter = impl_from_IMediaStreamFilter(iface);
+
+    TRACE("iface %p, timeout %u, state %p.\n", iface, timeout, state);
+
+    if (!state)
+        return E_POINTER;
+
+    EnterCriticalSection(&filter->cs);
+
+    *state = filter->state;
+
+    LeaveCriticalSection(&filter->cs);

-    *state = State_Stopped;
     return S_OK;
 }

diff --git a/dlls/amstream/tests/amstream.c b/dlls/amstream/tests/amstream.c
index 09686cfcf4d..cfdd8b6c8d4 100644
--- a/dlls/amstream/tests/amstream.c
+++ b/dlls/amstream/tests/amstream.c
@@ -2737,6 +2737,37 @@ static void test_audiostream_receive_connection(void)
     ok(!ref, "Got outstanding refcount %d.\n", ref);
 }

+void test_mediastreamfilter_get_state(void)
+{
+    IAMMultiMediaStream *mmstream = create_ammultimediastream();
+    IMediaStreamFilter *filter;
+    FILTER_STATE state;
+    HRESULT hr;
+    ULONG ref;
+
+    hr = IAMMultiMediaStream_Initialize(mmstream, STREAMTYPE_READ, 0, NULL);
+    ok(hr == S_OK, "Got hr %#x.\n", hr);
+    hr = IAMMultiMediaStream_GetFilter(mmstream, &filter);
+    ok(hr == S_OK, "Got hr %#x.\n", hr);
+    ok(!!filter, "Expected non-null filter.\n");
+
+    /* Crashes on native. */
+    if (0)
+    {
+        hr = IMediaStreamFilter_GetState(filter, 0, NULL);
+        ok(hr == E_POINTER, "Got hr %#x.\n", hr);
+    }
+
+    state = 0xcc;
+    hr = IMediaStreamFilter_GetState(filter, 0, &state);
+    ok(state == State_Stopped, "Got state %#x.\n", state);
+
+    ref = IAMMultiMediaStream_Release(mmstream);
+    ok(!ref, "Got outstanding refcount %d.\n", ref);
+    ref = IMediaStreamFilter_Release(filter);
+    ok(!ref, "Got outstanding refcount %d.\n", ref);
+}
+
 START_TEST(amstream)
 {
     HANDLE file;
@@ -2774,5 +2805,7 @@ START_TEST(amstream)
     test_audiostream_set_format();
     test_audiostream_receive_connection();

+    test_mediastreamfilter_get_state();
+
     CoUninitialize();
 }