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 // Implement a DirectShow input pin used for receiving captured frames from 6 // a DirectShow Capture filter. 7 8 #ifndef MEDIA_VIDEO_CAPTURE_WIN_SINK_INPUT_PIN_WIN_H_ 9 #define MEDIA_VIDEO_CAPTURE_WIN_SINK_INPUT_PIN_WIN_H_ 10 11 #include "media/video/capture/video_capture_device.h" 12 #include "media/video/capture/video_capture_types.h" 13 #include "media/video/capture/win/pin_base_win.h" 14 #include "media/video/capture/win/sink_filter_win.h" 15 16 namespace media { 17 18 // Const used for converting Seconds to REFERENCE_TIME. 19 extern const REFERENCE_TIME kSecondsToReferenceTime; 20 21 // Input pin of the SinkFilter. 22 class SinkInputPin : public PinBase { 23 public: 24 SinkInputPin(IBaseFilter* filter, SinkFilterObserver* observer); 25 virtual ~SinkInputPin(); 26 27 void SetRequestedMediaFormat(const VideoCaptureFormat& format); 28 // Returns the capability that is negotiated when this 29 // pin is connected to a media filter. 30 const VideoCaptureFormat& ResultingFormat(); 31 32 // Implement PinBase. 33 virtual bool IsMediaTypeValid(const AM_MEDIA_TYPE* media_type); 34 virtual bool GetValidMediaType(int index, AM_MEDIA_TYPE* media_type); 35 36 STDMETHOD(Receive)(IMediaSample* media_sample); 37 38 private: 39 VideoCaptureFormat requested_format_; 40 VideoCaptureFormat resulting_format_; 41 SinkFilterObserver* observer_; 42 43 DISALLOW_IMPLICIT_CONSTRUCTORS(SinkInputPin); 44 }; 45 46 } // namespace media 47 48 #endif // MEDIA_VIDEO_CAPTURE_WIN_SINK_INPUT_PIN_WIN_H_ 49
