third_party/chromium/media/capture/video/win/sink_input_pin_win.h

// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// Implement a DirectShow input pin used for receiving captured frames from
// a DirectShow Capture filter.

#ifndef MEDIA_CAPTURE_VIDEO_WIN_SINK_INPUT_PIN_WIN_H_
#define MEDIA_CAPTURE_VIDEO_WIN_SINK_INPUT_PIN_WIN_H_

#include "base/macros.h"
#include "media/capture/video/video_capture_device.h"
#include "media/capture/video/win/pin_base_win.h"
#include "media/capture/video/win/sink_filter_win.h"
#include "media/capture/video_capture_types.h"

namespace media {

// Const used for converting Seconds to REFERENCE_TIME.
extern const REFERENCE_TIME kSecondsToReferenceTime;

// Input pin of the SinkFilter.
class SinkInputPin : public PinBase {
 public:
  SinkInputPin(IBaseFilter* filter, SinkFilterObserver* observer);

  void SetRequestedMediaFormat(VideoPixelFormat pixel_format,
                               float frame_rate,
                               const BITMAPINFOHEADER& info_header);

  // Implement PinBase.
  bool IsMediaTypeValid(const AM_MEDIA_TYPE* media_type) override;
  bool GetValidMediaType(int index, AM_MEDIA_TYPE* media_type) override;

  IFACEMETHODIMP Receive(IMediaSample* media_sample) override;

 private:
  ~SinkInputPin() override;

  VideoPixelFormat requested_pixel_format_;
  float requested_frame_rate_;
  BITMAPINFOHEADER requested_info_header_;
  VideoCaptureFormat resulting_format_;
  bool flip_y_;
  SinkFilterObserver* observer_;

  DISALLOW_IMPLICIT_CONSTRUCTORS(SinkInputPin);
};

}  // namespace media

#endif  // MEDIA_CAPTURE_VIDEO_WIN_SINK_INPUT_PIN_WIN_H_