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MultiSession.h
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1 /*
2 * Copyright (c) 2016, 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_MULTI_SESSION_H
30 #define TASK_MULTI_SESSION_H
31
32 #include <list>
33
34 #include <Argus/Argus.h>
35
36 #include "ITask.h"
37 #include "Util.h"
38 #include "PerfTracker.h"
39 #include "UniquePointer.h"
40
41 namespace ArgusSamples
42 {
43 class EventThread;
44
45 /**
46 * This task creates one session for each available sensor
47 */
48 class TaskMultiSession : public ITask
49 {
50 public:
51 TaskMultiSession();
52 virtual ~TaskMultiSession();
53
54 /** @name ITask methods */
55 /**@{*/
56 virtual bool initialize();
57 virtual bool shutdown();
58 virtual bool start();
59 virtual bool stop();
60 /**@}*/
61
62 private:
63 bool m_initialized; ///< set if initialized
64 bool m_running; ///< set if preview is running
65
66 /**
67 * For each device there is one session with a request. Each request outputs to a stream which
68 * is rendered.
69 */
70 class Session
71 {
72 public:
73 Session();
74 ~Session();
75
76 bool shutdown();
77 bool stop();
78 bool initialize(uint32_t deviceIndex);
79
80 Argus::UniqueObj<Argus::CaptureSession> m_session; ///< Argus session
81 Argus::UniqueObj<Argus::Request> m_request; ///< Argus request
82 Argus::UniqueObj<Argus::OutputStream> m_outputStream; ///< Argus output stream
83
84 UniquePointer<EventThread> m_eventThread;
85 PerfTracker m_perfTracker;
86 };
87
88 std::list<Session*> m_sessions;
89
90 bool shutdownSessions();
91 };
92
93 }; // namespace ArgusSamples
94
95 #endif // TASK_MULTI_SESSION_H