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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 // Implement a DirectShow input pin used for receiving captured frames from | |
| 6 // a DirectShow Capture filter. | |
| 7 | |
| 8 #ifndef MEDIA_CAPTURE_VIDEO_WIN_SINK_INPUT_PIN_WIN_H_ | |
| 9 #define MEDIA_CAPTURE_VIDEO_WIN_SINK_INPUT_PIN_WIN_H_ | |
| 10 | |
| 11 #include "base/macros.h" | |
| 12 #include "media/base/video_capture_types.h" | |
| 13 #include "media/capture/video/video_capture_device.h" | |
| 14 #include "media/capture/video/win/pin_base_win.h" | |
| 15 #include "media/capture/video/win/sink_filter_win.h" | |
| 16 | |
| 17 namespace media { | |
| 18 | |
| 19 // Const used for converting Seconds to REFERENCE_TIME. | |
| 20 extern const REFERENCE_TIME kSecondsToReferenceTime; | |
| 21 | |
| 22 // Input pin of the SinkFilter. | |
| 23 class SinkInputPin : public PinBase { | |
| 24 public: | |
| 25 SinkInputPin(IBaseFilter* filter, SinkFilterObserver* observer); | |
| 26 | |
| 27 void SetRequestedMediaFormat(VideoPixelFormat pixel_format, | |
| 28 float frame_rate, | |
| 29 const BITMAPINFOHEADER& info_header); | |
| 30 // Returns the capability that is negotiated when this | |
| 31 // pin is connected to a media filter. | |
| 32 const VideoCaptureFormat& resulting_format() const { | |
| 33 return resulting_format_; | |
| 34 } | |
| 35 | |
| 36 // Implement PinBase. | |
| 37 bool IsMediaTypeValid(const AM_MEDIA_TYPE* media_type) override; | |
| 38 bool GetValidMediaType(int index, AM_MEDIA_TYPE* media_type) override; | |
| 39 | |
| 40 STDMETHOD(Receive)(IMediaSample* media_sample) override; | |
| 41 | |
| 42 private: | |
| 43 ~SinkInputPin() override; | |
| 44 | |
| 45 VideoPixelFormat requested_pixel_format_; | |
| 46 float requested_frame_rate_; | |
| 47 BITMAPINFOHEADER requested_info_header_; | |
| 48 VideoCaptureFormat resulting_format_; | |
| 49 SinkFilterObserver* observer_; | |
| 50 | |
| 51 DISALLOW_IMPLICIT_CONSTRUCTORS(SinkInputPin); | |
| 52 }; | |
| 53 | |
| 54 } // namespace media | |
| 55 | |
| 56 #endif // MEDIA_CAPTURE_VIDEO_WIN_SINK_INPUT_PIN_WIN_H_ | |
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