dlls/strmbase/qualitycontrol.c

   1 /*
   2  * Quality Control Interfaces
   3  *
   4  * Copyright 2010 Maarten Lankhorst for Codeweavers
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #define COBJMACROS
  22
  23 #include "dshow.h"
  24 #include "wine/strmbase.h"
  25
  26 #include "uuids.h"
  27 #include "wine/debug.h"
  28
  29 #include <assert.h>
  30
  31 WINE_DEFAULT_DEBUG_CHANNEL(strmbase);
  32
  33 void QualityControlImpl_init(QualityControlImpl *This, IPin *input, IBaseFilter *self) {
  34     This->input = input;
  35     This->self = self;
  36     This->tonotify = NULL;
  37 }
  38
  39 HRESULT WINAPI QualityControlImpl_QueryInterface(IQualityControl *iface, REFIID riid, void **ppv) {
  40     QualityControlImpl *This = (QualityControlImpl*)iface;
  41     return IUnknown_QueryInterface(This->self, riid, ppv);
  42 }
  43
  44 ULONG WINAPI QualityControlImpl_AddRef(IQualityControl *iface) {
  45     QualityControlImpl *This = (QualityControlImpl*)iface;
  46     return IUnknown_AddRef(This->self);
  47 }
  48
  49 ULONG WINAPI QualityControlImpl_Release(IQualityControl *iface) {
  50     QualityControlImpl *This = (QualityControlImpl*)iface;
  51     return IUnknown_Release(This->self);
  52 }
  53
  54 HRESULT WINAPI QualityControlImpl_Notify(IQualityControl *iface, IBaseFilter *sender, Quality qm) {
  55     HRESULT hr = S_FALSE;
  56     QualityControlImpl *This = (QualityControlImpl*)iface;
  57     if (This->tonotify)
  58         return IQualityControl_Notify(This->tonotify, This->self, qm);
  59     if (This->input) {
  60         IPin *to = NULL;
  61         IPin_ConnectedTo(This->input, &to);
  62         if (to) {
  63             IQualityControl *qc = NULL;
  64             IUnknown_QueryInterface(to, &IID_IQualityControl, (void**)&qc);
  65             if (qc) {
  66                 hr = IQualityControl_Notify(qc, This->self, qm);
  67                 IQualityControl_Release(qc);
  68             }
  69             IPin_Release(to);
  70         }
  71     }
  72     return hr;
  73 }
  74
  75 HRESULT WINAPI QualityControlImpl_SetSink(IQualityControl *iface, IQualityControl *tonotify) {
  76     QualityControlImpl *This = (QualityControlImpl*)iface;
  77     This->tonotify = tonotify;
  78     return S_OK;
  79 }