amstream: Implement AMAudioData::GetInfo.

dlls/amstream/audiodata.c

@@ -30,6 +30,9 @@ WINE_DEFAULT_DEBUG_CHANNEL(amstream);
 typedef struct {
     IAudioData IAudioData_iface;
     LONG ref;
+    DWORD size;
+    BYTE *data;
+    DWORD actual_data;
 } AMAudioDataImpl;
 
 static inline AMAudioDataImpl *impl_from_IAudioData(IAudioData *iface)
@@ -87,9 +90,29 @@ static HRESULT WINAPI IAudioDataImpl_SetBuffer(IAudioData* iface, DWORD size, BY
 
 static HRESULT WINAPI IAudioDataImpl_GetInfo(IAudioData* iface, DWORD *length, BYTE **data, DWORD *actual_data)
 {
-    FIXME("(%p)->(%p,%p,%p): stub\n", iface, length, data, actual_data);
+    AMAudioDataImpl *This = impl_from_IAudioData(iface);
 
-    return E_NOTIMPL;
+    TRACE("(%p)->(%p,%p,%p)\n", iface, length, data, actual_data);
+
+    if (!This->data)
+    {
+        return MS_E_NOTINIT;
+    }
+
+    if (length)
+    {
+        *length = This->size;
+    }
+    if (data)
+    {
+        *data = This->data;
+    }
+    if (actual_data)
+    {
+        *actual_data = This->actual_data;
+    }
+
+    return S_OK;
 }
 
 static HRESULT WINAPI IAudioDataImpl_SetActual(IAudioData* iface, DWORD data_valid)

dlls/amstream/tests/amstream.c

@@ -626,6 +626,30 @@ static void test_audiodata_query_interface(void)
     IUnknown_Release(unknown);
 }
 
+static void test_audiodata_get_info(void)
+{
+    IUnknown *unknown = create_audio_data();
+    IAudioData *audio_data = NULL;
+
+    HRESULT result;
+
+    result = IUnknown_QueryInterface(unknown, &IID_IAudioData, (void **)&audio_data);
+    if (FAILED(result))
+    {
+        /* test_audiodata_query_interface handles this case */
+        skip("No IAudioData\n");
+        goto out_unknown;
+    }
+
+    result = IAudioData_GetInfo(audio_data, NULL, NULL, NULL);
+    ok(MS_E_NOTINIT == result, "got 0x%08x\n", result);
+
+    IAudioData_Release(audio_data);
+
+out_unknown:
+    IUnknown_Release(unknown);
+}
+
 START_TEST(amstream)
 {
     HANDLE file;
@@ -645,6 +669,7 @@ START_TEST(amstream)
     }
 
     test_audiodata_query_interface();
+    test_audiodata_get_info();
 
     CoUninitialize();
 }