OpenShot Library | libopenshot 0.2.7
VideoCacheThread.h
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1/**
2 * @file
3 * @brief Source file for VideoCacheThread class
4 * @author Jonathan Thomas <jonathan@openshot.org>
5 *
6 * @ref License
7 */
8
9/* LICENSE
10 *
11 * Copyright (c) 2008-2019 OpenShot Studios, LLC
12 * <http://www.openshotstudios.com/>. This file is part of
13 * OpenShot Library (libopenshot), an open-source project dedicated to
14 * delivering high quality video editing and animation solutions to the
15 * world. For more information visit <http://www.openshot.org/>.
16 *
17 * OpenShot Library (libopenshot) is free software: you can redistribute it
18 * and/or modify it under the terms of the GNU Lesser General Public License
19 * as published by the Free Software Foundation, either version 3 of the
20 * License, or (at your option) any later version.
21 *
22 * OpenShot Library (libopenshot) is distributed in the hope that it will be
23 * useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
24 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 * GNU Lesser General Public License for more details.
26 *
27 * You should have received a copy of the GNU Lesser General Public License
28 * along with OpenShot Library. If not, see <http://www.gnu.org/licenses/>.
29 */
30
31#ifndef OPENSHOT_VIDEO_CACHE_THREAD_H
32#define OPENSHOT_VIDEO_CACHE_THREAD_H
33
34#include "../OpenMPUtilities.h"
35#include "../ReaderBase.h"
36#include "../RendererBase.h"
37
38namespace openshot
39{
40 using juce::Thread;
41 using juce::WaitableEvent;
42
43 /**
44 * @brief The video cache class.
45 */
46 class VideoCacheThread : Thread
47 {
48 private:
49 std::atomic_int position;
50
51 protected:
52 std::shared_ptr<Frame> frame;
53 int speed;
58
59 /// Constructor
61 /// Destructor
63
64 /// Get the currently playing frame number (if any)
66
67 /// Get Speed (The speed and direction to playback a reader (1=normal, 2=fast, 3=faster, -1=rewind, etc...)
68 int getSpeed() const { return speed; }
69
70 /// Play the video
71 void Play();
72
73 /// Seek the reader to a particular frame number
74 void Seek(int64_t new_position);
75
76 /// Set the currently displaying frame number
77 void setCurrentFramePosition(int64_t current_frame_number);
78
79 /// Set Speed (The speed and direction to playback a reader (1=normal, 2=fast, 3=faster, -1=rewind, etc...)
80 void setSpeed(int new_speed) { speed = new_speed; }
81
82 /// Stop the audio playback
83 void Stop();
84
85 /// Start the thread
86 void run();
87
88 /// Set the current thread's reader
89 void Reader(ReaderBase *new_reader) { reader=new_reader; Play(); };
90
91 /// Parent class of VideoCacheThread
92 friend class PlayerPrivate;
93 friend class QtPlayer;
94 };
95
96}
97
98#endif // OPENSHOT_VIDEO_CACHE_THREAD_H
The private part of QtPlayer class, which contains an audio thread and video thread,...
Definition: PlayerPrivate.h:49
This class is used to playback a video from a reader.
Definition: QtPlayer.h:48
This abstract class is the base class, used by all readers in libopenshot.
Definition: ReaderBase.h:98
The video cache class.
void setSpeed(int new_speed)
Set Speed (The speed and direction to playback a reader (1=normal, 2=fast, 3=faster,...
std::shared_ptr< Frame > frame
void Play()
Play the video.
int64_t getCurrentFramePosition()
Get the currently playing frame number (if any)
void Stop()
Stop the audio playback.
void Reader(ReaderBase *new_reader)
Set the current thread's reader.
void Seek(int64_t new_position)
Seek the reader to a particular frame number.
void setCurrentFramePosition(int64_t current_frame_number)
Set the currently displaying frame number.
int getSpeed() const
Get Speed (The speed and direction to playback a reader (1=normal, 2=fast, 3=faster,...
void run()
Start the thread.
This namespace is the default namespace for all code in the openshot library.
Definition: Compressor.h:47