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// 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 sink filter used for receiving captured frames from
// a DirectShow Capture filter.
#ifndef MEDIA_VIDEO_CAPTURE_WIN_SINK_FILTER_WIN_H_
#define MEDIA_VIDEO_CAPTURE_WIN_SINK_FILTER_WIN_H_
#include <windows.h>
#include "base/memory/ref_counted.h"
#include "media/base/video_capture_types.h"
#include "media/capture/video/video_capture_device.h"
#include "media/capture/video/win/filter_base_win.h"
#include "media/capture/video/win/sink_filter_observer_win.h"
namespace media {
// Define GUID for I420. This is the color format we would like to support but
// it is not defined in the DirectShow SDK.
// http://msdn.microsoft.com/en-us/library/dd757532.aspx
// 30323449-0000-0010-8000-00AA00389B71.
extern GUID kMediaSubTypeI420;
// UYVY synonym with BT709 color components, used in HD video. This variation
// might appear in non-USB capture cards and it's implemented as a normal YUV
// pixel format with the characters HDYC encoded in the first array word.
extern GUID kMediaSubTypeHDYC;
class SinkInputPin;
class __declspec(uuid("88cdbbdc-a73b-4afa-acbf-15d5e2ce12c3")) SinkFilter
: public FilterBase {
public:
explicit SinkFilter(SinkFilterObserver* observer);
void SetRequestedMediaFormat(VideoPixelFormat pixel_format,
float frame_rate,
const BITMAPINFOHEADER& info_header);
// Returns the format that is negotiated when this
// filter is connected to a media filter.
const VideoCaptureFormat& ResultingFormat() const;
// Implement FilterBase.
size_t NoOfPins() override;
IPin* GetPin(int index) override;
STDMETHOD(GetClassID)(CLSID* clsid) override;
private:
~SinkFilter() override;
scoped_refptr<SinkInputPin> input_pin_;
DISALLOW_IMPLICIT_CONSTRUCTORS(SinkFilter);
};
} // namespace media
#endif // MEDIA_VIDEO_CAPTURE_WIN_SINK_FILTER_WIN_H_
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