Visual Servoing Platform version 3.6.0
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vpDirectShowSampleGrabberI.h
1/****************************************************************************
2 *
3 * ViSP, open source Visual Servoing Platform software.
4 * Copyright (C) 2005 - 2023 by Inria. All rights reserved.
5 *
6 * This software is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 * See the file LICENSE.txt at the root directory of this source
11 * distribution for additional information about the GNU GPL.
12 *
13 * For using ViSP with software that can not be combined with the GNU
14 * GPL, please contact Inria about acquiring a ViSP Professional
15 * Edition License.
16 *
17 * See https://visp.inria.fr for more information.
18 *
19 * This software was developed at:
20 * Inria Rennes - Bretagne Atlantique
21 * Campus Universitaire de Beaulieu
22 * 35042 Rennes Cedex
23 * France
24 *
25 * If you have questions regarding the use of this file, please contact
26 * Inria at visp@inria.fr
27 *
28 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
29 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
30 *
31 * Description:
32 * DirectShow framegrabber callback.
33 *
34 * Authors:
35 * Bruno Renier
36 *
37*****************************************************************************/
38
39#ifndef vpDirectShowSampleGrabberI_hh
40#define vpDirectShowSampleGrabberI_hh
41
42#ifndef DOXYGEN_SHOULD_SKIP_THIS
43
44#include <visp3/core/vpConfig.h>
45#if (defined(VISP_HAVE_DIRECTSHOW))
46
47#include <dshow.h>
48#include <qedit.h>
49#include <stdio.h>
50
51#include <visp3/core/vpImage.h>
52#include <visp3/core/vpRGBa.h>
53
58class VISP_EXPORT vpDirectShowSampleGrabberI : public ISampleGrabberCB
59{
60 vpDirectShowSampleGrabberI();
61 virtual ~vpDirectShowSampleGrabberI();
62
63 // needed by the interface
64 STDMETHODIMP_(ULONG) AddRef() { return 1; }
65 STDMETHODIMP_(ULONG) Release() { return 2; }
66
67 STDMETHODIMP QueryInterface(REFIID riid, void **ppvObject);
68
69 // not implemented
70 STDMETHODIMP SampleCB(double Time, IMediaSample *pSample) { return E_NOTIMPL; }
71
72 // our callback function
73 STDMETHODIMP BufferCB(double Time, BYTE *pBuffer, long BufferLen);
74
75private:
76 // the currently connected media type
77 AM_MEDIA_TYPE connectedMediaType;
78
79 // true if the source media type is not a standard one
80 bool specialMediaType;
81 // true if the image needs to be flipped (only for special media types)
82 bool invertedSource;
83
84 // booleans used to signal a demand from acquire
85 bool acqGrayDemand;
86 bool acqRGBaDemand;
87
88 // pointer on the image to fill during the next callback if there has been a
89 // demand
90 vpImage<vpRGBa> *rgbaIm;
92
93 // semaphore used to synchronize the productor (callback) and the consumer
94 // (acquire)
95 HANDLE copySem;
96
97 friend class vpDirectShowGrabberImpl;
98};
99
100#endif
101#endif
102#endif
Definition of the vpImage class member functions.
Definition vpImage.h:135