quartz: Use CONTAINING_RECORD instead of casting.

dlls/quartz/avisplit.c

@@ -105,6 +105,11 @@ static inline AVISplitterImpl *impl_from_IMediaSeeking( IMediaSeeking *iface )
     return CONTAINING_RECORD(iface, AVISplitterImpl, Parser.sourceSeeking.IMediaSeeking_iface);
 }
 
+static inline AVISplitterImpl *impl_from_IBaseFilter(IBaseFilter *iface)
+{
+    return CONTAINING_RECORD(iface, AVISplitterImpl, Parser.filter.IBaseFilter_iface);
+}
+
 /* The threading stuff cries for an explanation
  *
  * PullPin starts processing and calls AVISplitter_first_request
@@ -1025,6 +1030,7 @@ static HRESULT AVISplitter_Disconnect(LPVOID iface);
 static HRESULT AVISplitter_InputPin_PreConnect(IPin * iface, IPin * pConnectPin, ALLOCATOR_PROPERTIES *props)
 {
     PullPin *This = impl_PullPin_from_IPin(iface);
+    AVISplitterImpl *pAviSplit = impl_from_IBaseFilter(This->pin.pinInfo.pFilter);
     HRESULT hr;
     RIFFLIST list;
     LONGLONG pos = 0; /* in bytes */
@@ -1034,8 +1040,6 @@ static HRESULT AVISplitter_InputPin_PreConnect(IPin * iface, IPin * pConnectPin,
     ULONG x;
     DWORD indexes;
 
-    AVISplitterImpl * pAviSplit = (AVISplitterImpl *)This->pin.pinInfo.pFilter;
-
     hr = IAsyncReader_SyncRead(This->pReader, pos, sizeof(list), (BYTE *)&list);
     pos += sizeof(list);
 
@@ -1264,7 +1268,7 @@ static HRESULT AVISplitter_Disconnect(LPVOID iface)
 
 static ULONG WINAPI AVISplitter_Release(IBaseFilter *iface)
 {
-    AVISplitterImpl *This = (AVISplitterImpl *)iface;
+    AVISplitterImpl *This = impl_from_IBaseFilter(iface);
     ULONG ref;
 
     ref = InterlockedDecrement(&This->Parser.filter.refCount);

dlls/quartz/dsoundrender.c

@@ -759,8 +759,8 @@ static ULONG WINAPI DSoundRender_Release(IBaseFilter * iface)
 
 static HRESULT WINAPI DSoundRender_Pause(IBaseFilter * iface)
 {
+    DSoundRenderImpl *This = impl_from_IBaseFilter(iface);
     HRESULT hr = S_OK;
-    DSoundRenderImpl *This = (DSoundRenderImpl *)iface;
 
     TRACE("(%p/%p)->()\n", This, iface);
 

dlls/quartz/mpegsplit.c

@@ -485,7 +485,7 @@ static HRESULT MPEGSplitter_init_audio(MPEGSplitterImpl *This, const BYTE *heade
 static HRESULT MPEGSplitter_pre_connect(IPin *iface, IPin *pConnectPin, ALLOCATOR_PROPERTIES *props)
 {
     PullPin *pPin = impl_PullPin_from_IPin(iface);
-    MPEGSplitterImpl *This = (MPEGSplitterImpl*)pPin->pin.pinInfo.pFilter;
+    MPEGSplitterImpl *This = impl_from_IBaseFilter(pPin->pin.pinInfo.pFilter);
     HRESULT hr;
     LONGLONG pos = 0; /* in bytes */
     BYTE header[10];

dlls/quartz/vmr9.c

@@ -206,6 +206,11 @@ static inline VMR9DefaultAllocatorPresenterImpl *impl_from_IVMRSurfaceAllocatorE
 
 static HRESULT VMR9DefaultAllocatorPresenterImpl_create(struct quartz_vmr *parent, LPVOID * ppv);
 
+static inline struct quartz_vmr *impl_from_IBaseFilter(IBaseFilter *iface)
+{
+    return CONTAINING_RECORD(iface, struct quartz_vmr, renderer.filter.IBaseFilter_iface);
+}
+
 static DWORD VMR9_SendSampleData(struct quartz_vmr *This, VMR9PresentationInfo *info, LPBYTE data,
                                  DWORD size)
 {
@@ -286,7 +291,7 @@ static DWORD VMR9_SendSampleData(struct quartz_vmr *This, VMR9PresentationInfo *
 
 static HRESULT WINAPI VMR9_DoRenderSample(BaseRenderer *iface, IMediaSample * pSample)
 {
-    struct quartz_vmr *This = (struct quartz_vmr*)iface;
+    struct quartz_vmr *This = impl_from_IBaseFilter(&iface->filter.IBaseFilter_iface);
     LPBYTE pbSrcStream = NULL;
     long cbSrcStream = 0;
     REFERENCE_TIME tStart, tStop;
@@ -351,7 +356,7 @@ static HRESULT WINAPI VMR9_DoRenderSample(BaseRenderer *iface, IMediaSample * pS
 
 static HRESULT WINAPI VMR9_CheckMediaType(BaseRenderer *iface, const AM_MEDIA_TYPE * pmt)
 {
-    struct quartz_vmr *This = (struct quartz_vmr*)iface;
+    struct quartz_vmr *This = impl_from_IBaseFilter(&iface->filter.IBaseFilter_iface);
 
     if (!IsEqualIID(&pmt->majortype, &MEDIATYPE_Video) || !pmt->pbFormat)
         return S_FALSE;
@@ -445,7 +450,7 @@ static HRESULT VMR9_maybe_init(struct quartz_vmr *This, BOOL force)
 
 static VOID WINAPI VMR9_OnStartStreaming(BaseRenderer* iface)
 {
-    struct quartz_vmr *This = (struct quartz_vmr*)iface;
+    struct quartz_vmr *This = impl_from_IBaseFilter(&iface->filter.IBaseFilter_iface);
 
     TRACE("(%p)\n", This);
 
@@ -463,7 +468,7 @@ static VOID WINAPI VMR9_OnStartStreaming(BaseRenderer* iface)
 
 static VOID WINAPI VMR9_OnStopStreaming(BaseRenderer* iface)
 {
-    struct quartz_vmr *This = (struct quartz_vmr*)iface;
+    struct quartz_vmr *This = impl_from_IBaseFilter(&iface->filter.IBaseFilter_iface);
 
     TRACE("(%p)\n", This);
 
@@ -481,7 +486,7 @@ static HRESULT WINAPI VMR9_ShouldDrawSampleNow(BaseRenderer *This, IMediaSample
 
 static HRESULT WINAPI VMR9_CompleteConnect(BaseRenderer *This, IPin *pReceivePin)
 {
-    struct quartz_vmr *pVMR9 = (struct quartz_vmr*)This;
+    struct quartz_vmr *pVMR9 = impl_from_IBaseFilter(&This->filter.IBaseFilter_iface);
     HRESULT hr;
 
     TRACE("(%p)\n", This);
@@ -495,7 +500,7 @@ static HRESULT WINAPI VMR9_CompleteConnect(BaseRenderer *This, IPin *pReceivePin
 
 static HRESULT WINAPI VMR9_BreakConnect(BaseRenderer *This)
 {
-    struct quartz_vmr *pVMR9 = (struct quartz_vmr*)This;
+    struct quartz_vmr *pVMR9 = impl_from_IBaseFilter(&This->filter.IBaseFilter_iface);
     HRESULT hr = S_OK;
 
     if (!pVMR9->mode)
@@ -863,7 +868,7 @@ static const IUnknownVtbl IInner_VTable =
 
 static HRESULT WINAPI VMR9_QueryInterface(IBaseFilter * iface, REFIID riid, LPVOID * ppv)
 {
-    struct quartz_vmr *This = (struct quartz_vmr*)iface;
+    struct quartz_vmr *This = impl_from_IBaseFilter(iface);
 
     if (This->bAggregatable)
         This->bUnkOuterValid = TRUE;
@@ -893,7 +898,7 @@ static HRESULT WINAPI VMR9_QueryInterface(IBaseFilter * iface, REFIID riid, LPVO
 
 static ULONG WINAPI VMR9_AddRef(IBaseFilter * iface)
 {
-    struct quartz_vmr *This = (struct quartz_vmr*)iface;
+    struct quartz_vmr *This = impl_from_IBaseFilter(iface);
     LONG ret;
 
     if (This->outer_unk && This->bUnkOuterValid)
@@ -908,7 +913,7 @@ static ULONG WINAPI VMR9_AddRef(IBaseFilter * iface)
 
 static ULONG WINAPI VMR9_Release(IBaseFilter * iface)
 {
-    struct quartz_vmr *This = (struct quartz_vmr*)iface;
+    struct quartz_vmr *This = impl_from_IBaseFilter(iface);
     LONG ret;
 
     if (This->outer_unk && This->bUnkOuterValid)