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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "media/video/capture/win/sink_filter_win.h"
      6 
      7 #include "base/logging.h"
      8 #include "media/video/capture/win/sink_input_pin_win.h"
      9 
     10 // Define GUID for I420. This is the color format we would like to support but
     11 // it is not defined in the DirectShow SDK.
     12 // http://msdn.microsoft.com/en-us/library/dd757532.aspx
     13 // 30323449-0000-0010-8000-00AA00389B71.
     14 GUID kMediaSubTypeI420 = {
     15   0x30323449, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xAA, 0x00, 0x38, 0x9B, 0x71}
     16 };
     17 
     18 namespace media {
     19 
     20 SinkFilterObserver::~SinkFilterObserver() {}
     21 
     22 SinkFilter::SinkFilter(SinkFilterObserver* observer)
     23     : input_pin_(NULL) {
     24   input_pin_ = new SinkInputPin(this, observer);
     25 }
     26 
     27 SinkFilter::~SinkFilter() {
     28   input_pin_->SetOwner(NULL);
     29 }
     30 
     31 void SinkFilter::SetRequestedMediaFormat(const VideoCaptureFormat& format) {
     32   input_pin_->SetRequestedMediaFormat(format);
     33 }
     34 
     35 const VideoCaptureFormat& SinkFilter::ResultingFormat() {
     36   return input_pin_->ResultingFormat();
     37 }
     38 
     39 size_t SinkFilter::NoOfPins() {
     40   return 1;
     41 }
     42 
     43 IPin* SinkFilter::GetPin(int index) {
     44   return index == 0 ? input_pin_ : NULL;
     45 }
     46 
     47 STDMETHODIMP SinkFilter::GetClassID(CLSID* clsid) {
     48   *clsid = __uuidof(SinkFilter);
     49   return S_OK;
     50 }
     51 
     52 }  // namespace media
     53