DirectShow: refactor custom renderer filter

Refactor out some of the filter and pin logic into the
DirectShowBaseFilter and DirectShowPin abstract classes.
This will avoid code duplication when implementing the probe
filter. The existing source filter (for qrc files) can also be
refactored to use these abstract classes.

Change-Id: Iaf141472dea82579ad085b3318624f9a57aa46d8
Reviewed-by: Christian Stromme <christian.stromme@qt.io>

1 files changed, 234 insertions, 0 deletions

diff --git a/src/plugins/directshow/camera/directshowcameraglobal.h b/src/plugins/directshow/camera/directshowcameraglobal.h
new file mode 100644
index 000000000..75112a090
--- /dev/null
+++ b/src/plugins/directshow/camera/directshowcameraglobal.h
@@ -0,0 +1,234 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef DIRECTSHOWCAMERAGLOBAL_H
+#define DIRECTSHOWCAMERAGLOBAL_H
+
+#include <QtCore/qglobal.h>
+
+#include <dshow.h>
+
+DEFINE_GUID(MEDIASUBTYPE_I420,
+        0x30323449,0x0000,0x0010,0x80,0x00,0x00,0xAA,0x00,0x38,0x9B,0x71);
+
+extern const GUID MEDIASUBTYPE_RGB24;
+extern const GUID MEDIASUBTYPE_RGB32;
+extern const GUID MEDIASUBTYPE_YUY2;
+extern const GUID MEDIASUBTYPE_MJPG;
+extern const GUID MEDIASUBTYPE_RGB555;
+extern const GUID MEDIASUBTYPE_YVU9;
+extern const GUID MEDIASUBTYPE_UYVY;
+extern const GUID PIN_CATEGORY_CAPTURE;
+extern const GUID PIN_CATEGORY_PREVIEW;
+
+extern const IID IID_IPropertyBag;
+extern const IID IID_ISampleGrabber;
+extern const IID IID_ICaptureGraphBuilder2;
+extern const IID IID_IAMStreamConfig;
+
+
+extern const CLSID CLSID_CVidCapClassManager;
+extern const CLSID CLSID_VideoInputDeviceCategory;
+extern const CLSID CLSID_SampleGrabber;
+extern const CLSID CLSID_CaptureGraphBuilder2;
+
+#define SAFE_RELEASE(x) { if(x) x->Release(); x = NULL; }
+
+typedef struct IFileSinkFilter *LPFILESINKFILTER;
+typedef struct IAMCopyCaptureFileProgress *LPAMCOPYCAPTUREFILEPROGRESS;
+
+#ifndef __ICaptureGraphBuilder2_INTERFACE_DEFINED__
+#define __ICaptureGraphBuilder2_INTERFACE_DEFINED__
+struct ICaptureGraphBuilder2 : public IUnknown
+{
+public:
+    virtual HRESULT STDMETHODCALLTYPE SetFiltergraph(
+        /* [in] */ IGraphBuilder *pfg) = 0;
+
+    virtual HRESULT STDMETHODCALLTYPE GetFiltergraph(
+        /* [out] */ IGraphBuilder **ppfg) = 0;
+
+    virtual HRESULT STDMETHODCALLTYPE SetOutputFileName(
+        /* [in] */ const GUID *pType,
+        /* [in] */ LPCOLESTR lpstrFile,
+        /* [out] */ IBaseFilter **ppf,
+        /* [out] */ IFileSinkFilter **ppSink) = 0;
+
+    virtual /* [local] */ HRESULT STDMETHODCALLTYPE FindInterface(
+        /* [in] */ const GUID *pCategory,
+        /* [in] */ const GUID *pType,
+        /* [in] */ IBaseFilter *pf,
+        /* [in] */ REFIID riid,
+        /* [out] */ void **ppint) = 0;
+
+    virtual HRESULT STDMETHODCALLTYPE RenderStream(
+        /* [in] */ const GUID *pCategory,
+        /* [in] */ const GUID *pType,
+        /* [in] */ IUnknown *pSource,
+        /* [in] */ IBaseFilter *pfCompressor,
+        /* [in] */ IBaseFilter *pfRenderer) = 0;
+
+    virtual HRESULT STDMETHODCALLTYPE ControlStream(
+        /* [in] */ const GUID *pCategory,
+        /* [in] */ const GUID *pType,
+        /* [in] */ IBaseFilter *pFilter,
+        /* [in] */ REFERENCE_TIME *pstart,
+        /* [in] */ REFERENCE_TIME *pstop,
+        /* [in] */ WORD wStartCookie,
+        /* [in] */ WORD wStopCookie) = 0;
+
+    virtual HRESULT STDMETHODCALLTYPE AllocCapFile(
+        /* [in] */ LPCOLESTR lpstr,
+        /* [in] */ DWORDLONG dwlSize) = 0;
+
+    virtual HRESULT STDMETHODCALLTYPE CopyCaptureFile(
+        /* [in] */ LPOLESTR lpwstrOld,
+        /* [in] */ LPOLESTR lpwstrNew,
+        /* [in] */ int fAllowEscAbort,
+        /* [in] */ IAMCopyCaptureFileProgress *pCallback) = 0;
+
+    virtual HRESULT STDMETHODCALLTYPE FindPin(
+        /* [in] */ IUnknown *pSource,
+        /* [in] */ PIN_DIRECTION pindir,
+        /* [in] */ const GUID *pCategory,
+        /* [in] */ const GUID *pType,
+        /* [in] */ BOOL fUnconnected,
+        /* [in] */ int num,
+        /* [out] */ IPin **ppPin) = 0;
+
+};
+#endif
+
+#ifndef __IAMStreamConfig_INTERFACE_DEFINED__
+#define __IAMStreamConfig_INTERFACE_DEFINED__
+struct IAMStreamConfig : public IUnknown
+{
+public:
+    virtual HRESULT STDMETHODCALLTYPE SetFormat(
+        /* [in] */ AM_MEDIA_TYPE *pmt) = 0;
+
+    virtual HRESULT STDMETHODCALLTYPE GetFormat(
+        /* [out] */ AM_MEDIA_TYPE **ppmt) = 0;
+
+    virtual HRESULT STDMETHODCALLTYPE GetNumberOfCapabilities(
+        /* [out] */ int *piCount,
+        /* [out] */ int *piSize) = 0;
+
+    virtual HRESULT STDMETHODCALLTYPE GetStreamCaps(
+        /* [in] */ int iIndex,
+        /* [out] */ AM_MEDIA_TYPE **ppmt,
+        /* [out] */ BYTE *pSCC) = 0;
+
+};
+#endif
+
+#ifndef __IErrorLog_INTERFACE_DEFINED__
+#define __IErrorLog_INTERFACE_DEFINED__
+struct IErrorLog : public IUnknown
+    {
+    public:
+        virtual HRESULT STDMETHODCALLTYPE AddError(
+            /* [in] */ LPCOLESTR pszPropName,
+            /* [in] */ EXCEPINFO *pExcepInfo) = 0;
+
+    };
+#endif
+
+#ifndef __IPropertyBag_INTERFACE_DEFINED__
+#define __IPropertyBag_INTERFACE_DEFINED__
+struct IPropertyBag : public IUnknown
+{
+public:
+    virtual /* [local] */ HRESULT STDMETHODCALLTYPE Read(
+        /* [in] */ LPCOLESTR pszPropName,
+        /* [out][in] */ VARIANT *pVar,
+        /* [in] */ IErrorLog *pErrorLog) = 0;
+
+    virtual HRESULT STDMETHODCALLTYPE Write(
+        /* [in] */ LPCOLESTR pszPropName,
+        /* [in] */ VARIANT *pVar) = 0;
+
+};
+#endif
+
+typedef struct IMediaSample *LPMEDIASAMPLE;
+
+EXTERN_C const IID IID_ISampleGrabberCB;
+
+#ifndef __ISampleGrabberCB_INTERFACE_DEFINED__
+#define __ISampleGrabberCB_INTERFACE_DEFINED__
+
+#undef INTERFACE
+#define INTERFACE ISampleGrabberCB
+DECLARE_INTERFACE_(ISampleGrabberCB, IUnknown)
+{
+//    STDMETHOD(QueryInterface) (THIS_ const GUID *, void **) PURE;
+    STDMETHOD(QueryInterface) (THIS_ REFIID riid, void **) PURE;
+    STDMETHOD_(ULONG, AddRef) (THIS) PURE;
+    STDMETHOD_(ULONG, Release) (THIS) PURE;
+    STDMETHOD_(HRESULT, SampleCB) (THIS_ double, LPMEDIASAMPLE) PURE;
+    STDMETHOD_(HRESULT, BufferCB) (THIS_ double, BYTE *, long) PURE;
+};
+#undef INTERFACE
+
+#endif
+
+
+#ifndef __ISampleGrabber_INTERFACE_DEFINED__
+#define __ISampleGrabber_INTERFACE_DEFINED__
+
+#define INTERFACE ISampleGrabber
+DECLARE_INTERFACE_(ISampleGrabber,IUnknown)
+{
+  STDMETHOD(QueryInterface)(THIS_ REFIID,PVOID*) PURE;
+  STDMETHOD_(ULONG,AddRef)(THIS) PURE;
+  STDMETHOD_(ULONG,Release)(THIS) PURE;
+  STDMETHOD(SetOneShot)(THIS_ BOOL) PURE;
+  STDMETHOD(SetMediaType)(THIS_ const AM_MEDIA_TYPE*) PURE;
+  STDMETHOD(GetConnectedMediaType)(THIS_ AM_MEDIA_TYPE*) PURE;
+  STDMETHOD(SetBufferSamples)(THIS_ BOOL) PURE;
+  STDMETHOD(GetCurrentBuffer)(THIS_ long*,long*) PURE;
+  STDMETHOD(GetCurrentSample)(THIS_ IMediaSample**) PURE;
+  STDMETHOD(SetCallback)(THIS_ ISampleGrabberCB *,long) PURE;
+};
+#undef INTERFACE
+#endif
+
+
+#endif