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StillCapture.h
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1 /*
2 * Copyright (c) 2016-2017, NVIDIA CORPORATION. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * * Neither the name of NVIDIA CORPORATION nor the names of its
13 * contributors may be used to endorse or promote products derived
14 * from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
20 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
21 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
22 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
23 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
24 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #ifndef TASK_STILL_CAPTURE_H
30 #define TASK_STILL_CAPTURE_H
31
32 #include <Argus/Argus.h>
33 #include <EGLStream/EGLStream.h>
34
35 #include "ITask.h"
36 #include "UniquePointer.h"
37 #include "IObserver.h"
38 #include "TrackedUniqueObject.h"
39
40 namespace ArgusSamples
41 {
42
43 class SessionPerfTracker;
44
45 /**
46 * This task captures still images
47 */
48 class TaskStillCapture : public ITask, public IObserver
49 {
50 public:
51 TaskStillCapture();
52 virtual ~TaskStillCapture();
53
54 virtual bool initialize();
55 virtual bool shutdown();
56
57 virtual bool start();
58 virtual bool stop();
59
60 /**
61 * Capture one image
62 */
63 bool execute();
64
65 private:
66 bool m_initialized; ///< set if initialized
67 bool m_running; ///< set if preview is running
68 bool m_wasRunning; ///< set if was running before the device had been closed
69 bool m_prevRunning; ///< set if was running before the sensorModeValid is set to false
70 uint32_t m_captureIndex; ///< Incrementing capture index
71
72 UniquePointer<SessionPerfTracker> m_perfTracker;
73
74 TrackedUniqueObj<Argus::Request> m_previewRequest; ///< Argus preview request
75 Argus::UniqueObj<Argus::OutputStream> m_previewStream; ///< Argus preview stream
76
77 /**
78 * Callback when the device is opened/closed.
79 */
80 bool onDeviceOpenChanged(const Observed &source);
81
82 /**
83 * Callback when the sensorModeValid is changed.
84 */
85 bool onSensorModeValidChanged(const Observed &source);
86
87 /**
88 * Restart when output size changes
89 */
90 bool restartStreams(const Observed &source);
91 };
92
93 }; // namespace ArgusSamples
94
95 #endif // TASK_STILL_CAPTURE_H