[PATCH] quartz/filtergraph: Add a stub IVideoFrameStep interface.

[Gijs Vermeulen]

wine-bug: https://bugs.winehq.org/show_bug.cgi?id=42372
Signed-off-by: Gijs Vermeulen <gijsvrm(a)gmail.com>
---
 dlls/quartz/filtergraph.c       | 64 ++++++++++++++++++++++++++++++++-
 dlls/quartz/tests/filtergraph.c |  1 +
 include/axextend.idl            | 13 +++++++
 3 files changed, 77 insertions(+), 1 deletion(-)

diff --git a/dlls/quartz/filtergraph.c b/dlls/quartz/filtergraph.c
index 6217516db1..db2f922bc1 100644
--- a/dlls/quartz/filtergraph.c
+++ b/dlls/quartz/filtergraph.c
@@ -181,7 +181,7 @@ typedef struct _IFilterGraphImpl {
     /* IRegisterServiceProvider */
     /* IResourceManager */
     /* IServiceProvider */
-    /* IVideoFrameStep */
+    IVideoFrameStep IVideoFrameStep_iface;
 
     IUnknown *outer_unk;
     LONG ref;
@@ -454,6 +454,9 @@ static HRESULT WINAPI FilterGraphInner_QueryInterface(IUnknown *iface, REFIID ri
     } else if (IsEqualGUID(&IID_IGraphVersion, riid)) {
         *ppvObj = &This->IGraphVersion_iface;
         TRACE("   returning IGraphVersion interface (%p)\n", *ppvObj);
+    } else if (IsEqualGUID(&IID_IVideoFrameStep, riid)) {
+        *ppvObj = &This->IVideoFrameStep_iface;
+        TRACE("   returning IVideoFrameStep interface (%p)\n", *ppvObj);
     } else {
         *ppvObj = NULL;
 	FIXME("unknown interface %s\n", debugstr_guid(riid));
@@ -5638,6 +5641,64 @@ static const IGraphVersionVtbl IGraphVersion_VTable =
     GraphVersion_QueryVersion,
 };
 
+static inline IFilterGraphImpl *impl_from_IVideoFrameStep(IVideoFrameStep *iface)
+{
+    return CONTAINING_RECORD(iface, IFilterGraphImpl, IVideoFrameStep_iface);
+}
+
+static HRESULT WINAPI VideoFrameStep_QueryInterface(IVideoFrameStep *iface, REFIID riid, void **ppv)
+{
+    IFilterGraphImpl *This = impl_from_IVideoFrameStep(iface);
+
+    return IUnknown_QueryInterface(This->outer_unk, riid, ppv);
+}
+
+static ULONG WINAPI VideoFrameStep_AddRef(IVideoFrameStep *iface)
+{
+    IFilterGraphImpl *This = impl_from_IVideoFrameStep(iface);
+
+    return IUnknown_AddRef(This->outer_unk);
+}
+
+static ULONG WINAPI VideoFrameStep_Release(IVideoFrameStep *iface)
+{
+    IFilterGraphImpl *This = impl_from_IVideoFrameStep(iface);
+
+    return IUnknown_Release(This->outer_unk);
+}
+
+static HRESULT WINAPI VideoFrameStep_Step(IVideoFrameStep *iface, DWORD frames, IUnknown *stepobj)
+{
+    IFilterGraphImpl *This = impl_from_IVideoFrameStep(iface);
+    FIXME("(%p)->(%d %p): stub!\n", This, frames, stepobj);
+    return E_NOTIMPL;
+}
+
+static HRESULT WINAPI VideoFrameStep_CanStep(IVideoFrameStep *iface, LONG multiple, IUnknown *stepobj)
+{
+    IFilterGraphImpl *This = impl_from_IVideoFrameStep(iface);
+    FIXME("(%p)->(%d %p): stub!\n", This, multiple, stepobj);
+    return E_NOTIMPL;
+}
+
+static HRESULT WINAPI VideoFrameStep_CancelStep(IVideoFrameStep *iface)
+{
+    IFilterGraphImpl *This = impl_from_IVideoFrameStep(iface);
+    FIXME("(%p)->(): stub!\n", This);
+    return E_NOTIMPL;
+}
+
+
+static const IVideoFrameStepVtbl IVideoFrameStep_VTable =
+{
+    VideoFrameStep_QueryInterface,
+    VideoFrameStep_AddRef,
+    VideoFrameStep_Release,
+    VideoFrameStep_Step,
+    VideoFrameStep_CanStep,
+    VideoFrameStep_CancelStep
+};
+
 static const IUnknownVtbl IInner_VTable =
 {
     FilterGraphInner_QueryInterface,
@@ -5668,6 +5729,7 @@ static HRESULT filter_graph_common_create(IUnknown *outer, IUnknown **out, BOOL
     fimpl->IMediaPosition_iface.lpVtbl = &IMediaPosition_VTable;
     fimpl->IObjectWithSite_iface.lpVtbl = &IObjectWithSite_VTable;
     fimpl->IGraphVersion_iface.lpVtbl = &IGraphVersion_VTable;
+    fimpl->IVideoFrameStep_iface.lpVtbl = &IVideoFrameStep_VTable;
     fimpl->ref = 1;
     list_init(&fimpl->filters);
     list_init(&fimpl->sorted_filters);
diff --git a/dlls/quartz/tests/filtergraph.c b/dlls/quartz/tests/filtergraph.c
index f0aa084192..a3378efe0b 100644
--- a/dlls/quartz/tests/filtergraph.c
+++ b/dlls/quartz/tests/filtergraph.c
@@ -125,6 +125,7 @@ static void test_interfaces(void)
     check_interface(graph, &IID_IMediaPosition, TRUE);
     check_interface(graph, &IID_IMediaSeeking, TRUE);
     check_interface(graph, &IID_IObjectWithSite, TRUE);
+    check_interface(graph, &IID_IVideoFrameStep, TRUE);
     check_interface(graph, &IID_IVideoWindow, TRUE);
 
     check_interface(graph, &IID_IBaseFilter, FALSE);
diff --git a/include/axextend.idl b/include/axextend.idl
index 8b46d665b5..8303166721 100644
--- a/include/axextend.idl
+++ b/include/axextend.idl
@@ -1471,3 +1471,16 @@ interface IAMTVTuner : IAMTuner
     HRESULT get_VideoFrequency([out] long *freq);
     HRESULT get_AudioFrequency([out] long *freq);
 }
+
+[
+    local,
+    object,
+    uuid(e46a9787-2b71-444d-a4b5-1fab7b708d6a),
+    pointer_default(unique),
+]
+interface IVideoFrameStep : IUnknown
+{
+    HRESULT Step(DWORD dwFrames, [in] IUnknown *pStepObject);
+    HRESULT CanStep(long bMultiple, [in] IUnknown *pStepObject);
+    HRESULT CancelStep();
+}
-- 
2.27.0