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VideoRecord.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_VIDEO_RECORD_H
30 #define TASK_VIDEO_RECORD_H
31
32 #include <Argus/Argus.h>
33
34 #include "ITask.h"
35 #include "PerfTracker.h"
36 #include "UniquePointer.h"
37 #include "IObserver.h"
38
39 namespace ArgusSamples
40 {
41 class EventThread;
42 class VideoPipeline;
43
44 /**
45 * This task records a video and saves it to a file using gstreamer. It also creates a preview
46 * stream and display it using the renderer.
47 */
48 class TaskVideoRecord : public ITask, public IObserver
49 {
50 public:
51 TaskVideoRecord();
52 virtual ~TaskVideoRecord();
53
54 virtual bool initialize();
55 virtual bool shutdown();
56
57 virtual bool start();
58 virtual bool stop();
59
60 /**
61 * Start recording
62 */
63 bool startRecording();
64 /**
65 * Stop recording
66 */
67 bool stopRecording();
68 /**
69 * Toggle recording
70 */
71 bool toggleRecording();
72
73 private:
74 bool m_initialized; ///< set if initialized
75 bool m_running; ///< set if preview is running
76 bool m_wasRunning; ///< set if was running before the device had been closed
77 bool m_recording; ///< if set recording is active
78 uint32_t m_captureIndex; ///< Incrementing capture index
79
80 VideoPipeline *m_videoPipeline; ///< video pipeline
81
82 UniquePointer<EventThread> m_eventThread;
83 PerfTracker m_perfTracker;
84
85 Argus::UniqueObj<Argus::Request> m_request; ///< Argus request
86 Argus::UniqueObj<Argus::OutputStream> m_videoStream; ///< Argus video output stream
87 Argus::UniqueObj<Argus::OutputStream> m_previewStream; ///< Argus preview output stream
88
89 /**
90 * Callback when the device is opened/closed.
91 */
92 bool onDeviceOpenChanged(const Observed &source);
93 };
94
95 }; // namespace ArgusSamples
96
97 #endif // TASK_VIDEO_RECORD_H